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Serum Packaging Box

How to protect your precious serum which keep your youngth? How to present your precious serum to your clients and attrack them when first glace? The package make this happen, we have rich experience in cosmetic box design and production and pack out, we can design the box sepecial for you to make your products more interesting and valuable.

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Type: Serum Packaging Box

Size: Customized

Printing color: CMYK, 4,6 or more color available

Print: UV print

Material/Paper stock: Flexible package material paper

Insert option: Customized

Surface finishing: UV, gloss, matt/gloss laminate, hot stamping, hot-stamping, Embossing, Debossing, UV Coating, etc.

Advantage: 100% hand made, High-Quality fashion look, Luxury, Eco-Friendly Material, all meet export standard

Uses: cosmetics, health products, sporting goods, stationery, etc.

Package: with PE bag pack in corrugated master shipping carton box and standard pallet

Design: Your own design and OEM welcome

Design software: AI, PDF, PSD, CAD, ARD, Pro, 3D Max

Read more…

Paper straws By Holiday

Our paper straws are perfectly suitable for decorating your special events, such as Christmas, Valentine's day, Halloween, Wedding party, Birthday, and they are ideal for indoor or outdoor parties. With our special paper straws, you can spend a wonderful time with your family, friends and lovers.

 

Product Feature:

Our holiday paper straws can resist high temperature and nature decompose, and produced by 100% recycled food grade paper and environmental friendly water ink.

 

In response to the global plastic ban, paper straws will replace the plastic straws in recent days. The paper straws have advantages as follow:

1)All paper straws are made by 100% recycled paper, and they are are safe to the body.

2)They are durable, are not soggy after a full glass of water/tea.

3)They are disposable, biodegradable, so using paper straws can protect our environment.

They have different sizes of patterns and colours as you need.

 

Varied pattern design makes it suitable for many different occasions as you want. Normally, wholesale paper straws are packed in 500pcs/bag, can mix with other colour. Of course, we have the special small package with 12pcs/20pcs/24pcs/poly bag with header card/paper box. We can also supply individually wrapped pakcing if you need.

 

Why paper straws:

Compared with plastic straws, paper straws are favorited by consumers due to their environmental-friendly and biodegradable materials. They are health, harmless and safety for people's body. Most importantly, paper straws can help to protect the environment world. Make the change today!

 

Who we are:

Ningbo Jiangbei Shenyu Industry and Trade CO., Ltd. is a professional paper straws manufacturer. Custom printed paper straws with custom design. No middle man, directly to your hands. We provide free artwork, free sample. OEM and Wholesale. 100% satisfaction guarantee.

 

Sample policy:

  1. Send sample to the appointed address
  2. Sample cost depends on your print logo and quantity
  3. Sample time: 7~15 days
  4. 8466524264?profile=original
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Introduction to Yiwu Furniture Market

Yiwu furniture market is located in the West core of Yiwu agent. It is the only large-scale furniture market approved by the government in Yiwu, covering an area of 80 mu, with a total construction area of 160,000 square meters. It is a modern furniture market with the largest single size, the highest grade, the best environment and complete supporting facilities in Zhejiang Province.
 
Yiwu furniture market is full of high, medium and low-grade products, wholesale and retail, domestic and foreign trade. Business Distribution: The first floor of the underground is for ordinary civilian furniture and office furniture; the fourth floor is for excellent space to operate high-quality furniture; The fifth floor is the business district and the home decoration district, and the second floor is the parking lot for the operators.
 
Buying In China
 
Furniture market in yiwu has introduced the best operators in Yiwu Xinke Road furniture market, Zhanqian Road professional street, and Agricultural and Trade City, as well as 50% to 60% of the domestic first-line furniture brands. The huge advantages of foreign trade resources and the high concentration of brand furniture in middle and low-grade furniture have made Yiwu furniture market a strong competitive force, and also made Yiwu furniture market an unshakable leading market position in the central and western regions of Zhejiang Province.
 
Yiwu furniture market is 70% extroverted. The unique international market window will surely become the best platform for many domestic furniture brands to enter the world and win international reputation. Yiwu furniture market will adhere to the purpose of "serving the prosperous market with heart" and "basing on Zhejiang radiating the whole world", with an international perspective and modern business philosophy, warmly welcome guests and friends at home and abroad to visit.
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Natural Rubber

Natural rubber, as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds, plus water. 

Currently, rubber is harvested mainly in the form of the latex from the rubber tree or others. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called "tapping". The latex then is refined into rubber ready for commercial processing. In major areas, latex is allowed to coagulate in the collection cup. The coagulated lumps are collected and processed into dry forms for marketing.

Natural rubber is used extensively in many applications and products, either alone or in combination with other materials. In most of its useful forms, it has a large stretch ratio and high resilience and is extremely waterproof.

Centrifuged latex is processed into final articles by dipping, extruding, and coating. Different articles have different physical and chemical requirements, which means that the latex used in their manufacture must be modified by the addition of a great variety of substances that give each "formulation" its unique characteristics. 

These characteristics are well-specified and must be carefully controlled. 

Skim latex is generated during natural rubber processing centrifuged into fresh latex to become concentrated latex. Skim latex is a raw material for producing skim rubber block according to the low content of rubber particles in the range of 4-8% DRC.

natural rubber

Traditionally, skim latex is treated with sulphuric acid to produce cheap, low-quality rubber products of 5% skim rubber content. Not only does this method consume large quantities of the acid, which results in high production cost, more importantly, causing harmful pollutants to the environment.

natural rubber


JIUWU offers a safer, cheaper and greener option to produce skim rubber products of high quality. Through ceramic membrane filtration system, the rubber content in recovered skim latex can be concentrated to more than 15%, the same value in natural rubber without any form of chemical treatment. At the same time, permeate can be recycled.

natural rubber

natural rubber

natural rubber
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Hydronic Balancing Valve

Hydraulic balance valve, also known as self-operated balance valve, flow control valve, flow controller, dynamic balance valve, flow balance valve, is an intuitive and simple flow adjustment control device. The application of the hydraulic balancing valve in the pipe network allows the flow to be set directly according to the design. The valve automatically eliminates the flow deviation caused by the residual head and pressure fluctuations of the pipeline under the action of water. The set flow rate is maintained regardless of changes in system pressure. These functions of the valve make the pipe network flow adjustment complete once, and the network adjustment work becomes a simple flow distribution, effectively solving the hydraulic imbalance of the pipe network.

Chinese name: hydraulic balance valve

Medium temperature: 0-150 ° C

Working pressure: 1.6MPa

Working temperature: 150 ° C

Scope of application

The hydraulic balance valve is mainly used in centralized heating (cold) and other water systems to distribute the flow of the pipe network as needed, eliminate the hydraulic imbalance of the water system, solve the problem of uneven heat and heat, and save energy and save 15%-20%. .

Performance characteristics

(1) It can set the flow according to the design or actual requirements, which can automatically eliminate the pressure difference fluctuation of the system and keep the flow rate unchanged.

(2) It overcomes the uneven heat and cold of the system and improves the quality of heating (cooling).

(3) It completely solves the contradiction that the pressure difference between the proximal end is large and the pressure difference at the distal end is small.

(4) It can reduce the amount of circulating water in the system and reduce the resistance of the system.

(5) It can reduce the design workload, and does not require complicated hydraulic balance calculation on the pipe network.

(6) It can reduce the difficulty of network adjustment, simplifying complicated network adjustment work into simple traffic distribution.

(7) It can eliminate the traffic redistribution work when the heat source of the multi-heat source pipe network is switched.

(8) The flow rate display values are all randomly calibrated on the test bench, and the flow rate (m3/h).

Technical Parameters

Working pressure difference: 20-600KPa;

Flow accuracy: 5%.

Material and life:

Body - high quality grey cast iron

Internals - brass, stainless steel

Spring - stainless steel

Diaphragm - EPDM

Lifetime - more than ten years

Selection:

It can be selected according to the pipe diameter.

It can be selected according to the maximum flow rate and the flow range of the valve.

 

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Anhydrite

Anhydrite

Characteristics of Anhydrite:

Anhydrite is one of sulfate mineral. Its component is dried calcium sulfate. The difference between anhydrite and gypsum is natural anhydrite do not contain crystal water.

Purpose of Anhydrite:

Calcium Sulfate Anhydrite work as cement setting speed agent. It is subsidiary adjusting agent for sulphate aluminate series special engineering materials. It can be used in cement based self leveling, rush repair materials, non-shrinkage grout, rapid setting and high strength cement product, cement decorative products and special mortar.

Notice of Anhydrite:

Calcium sulfate anhydrite is packed in 25kgs bags lined with plastic film. Or accord to client’s requirement.
Store in dry place.
Shelf life is twelve months. The life time can be prolonged if keep in good condition. It should be tested before using.
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Why Use Visual Packaging from HLP Klearfold

Packaging is the brand communications tool that gets up close and personal. Clear plastic packaging from HLP Klearfold is the brand communications tool that connects consumers directly with your products. High-quality, well-executed transparent plastic packaging offers significant advantages over plain paperboard packaging:

 

Three-dimensionality and a clear view of the package contents

Exciting aesthetics and a value-added perception

An elegant appearance that supports premium product positioning

Unique structural and graphic designs not achievable in paperboard

And a proven record of enhancing brand performance

A recent eye-tracking research program conducted at Clemson University supports these claims. When printed plastic carton were compared to equivalent paperboard cartons, test participants were generally more attracted to, and preferred the clear packages; and they typically had better perception of the products packaged within. They also preferred seeing an actual product within a clear carton rather than seeing an image of the product printed on an opaque, paperboard package.

As one of the plastic box manufacturers in China,Hlpklearfoldpvc will keep strive to offer you  visual packaging and other custom plastic box with high quality.8466522079?profile=original

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Many types of adapters can be used to charge lithium-ion batteries and power the system, and the electrical specifications of each rechargeable lithium battery are usually different. This requires system designers to build portable devices, which meet the safety and reliability requirements when using different adapters. Enhance robust security performance. Dongjin fully integrates input overvoltage, input overcurrent, battery overvoltage and reverse input polarity protection, which can significantly improve the safety of battery power supply system.

The ultimate purpose of parallel lithium battery of rechargeable lithium batteries is to increase capacity. Therefore, parallel lithium battery has some different characteristics in design compared with single lithium batteries, mainly reflected in the consistency of charging current design and parallel batteries.

Generally speaking, the characteristics of parallel lithium batteries are as follows: the voltage is constant, the capacity of batteries is added together, the internal resistance is reduced, and the power supply time is prolonged. The core content of parallel charging is the magnitude and function of parallel current. According to the theory of parallel connection, the trunk current equals the sum of all branch currents. Therefore, in order to achieve the same charging efficiency as a single lithium battery, the charging current should be the sum of the current of N lithium batteries.

Under the formula of I = U / R, this design is reasonable. However, the internal resistance of parallel batteries will also change. According to the formula of parallel internal resistance, the total internal resistance of two parallel lithium batteries is equal to the ratio of the product of internal resistance of two batteries to the sum of their internal resistance, and the parallel resistance will decrease with the increase of the number of parallel batteries. Therefore, the efficiency of parallel charging of lithium batteries can be realized on the basis that the current of lithium batteries in parallel is less than the sum of the current of N lithium batteries in parallel.

Generally, after parallel connection of lithium batteries, there will be a charge protection chip to protect the lithium batteries. As one of the excellent manufacturers of rechargeable lithium batteries, battery of Dongjin has fully considered the changes of lithium batteries after parallel connection, and also designed the current and selected the batteries according to the above requirements. Therefore, users need to charge lithium batteries on time according to the instructions of parallel lithium batteries, so as to avoid possible damage to batteries caused by incorrect charging methods.

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Aluminum printed circuit board (PCB) is a kind of PCB:

Aluminum printed circuit board (PCB) is a kind of metal base copper clad board with good heat dissipation function. Generally, a single panel is composed of three layers, which are circuit layer (copper foil), insulation layer and metal base. For high-end use there is also a design for double panels, the structure of the circuit layer, insulation layer, aluminum base, insulation layer, circuit layer. Very few applications for multilayer board, can be made of ordinary multilayer board and insulation layer, aluminum base laminated. 

Single aluminum substrate: is only one layer of conductive graphics layer and insulation materials plus aluminum (substrate). 

Double-sided line aluminum substrate: there are two layers of conductive graphics layer and insulation material plus aluminum (substrate) superimposed together. 

Multilayer printed aluminum-based circuit board: a printed circuit board made by bonding three or more layers of conductive graphics with alternating layers of insulating material and aluminum (substrate).

According to the surface treatment method to be divided into: 

Gold plate (chemical thin gold chemical thick gold selective gold deposition) 

Electrogold plate (full plate electrogold finger selective electrogold) 

Tin jet plate 

Molten tin plate 

Heavy tin plate

Silver plate 

Electrosilver plate 

Palladium plate

Aluminum printed circuit board composition

  1. Circuit layer

The circuit layer (generally using electrolytic copper foil) is etched to form a printed circuit for the assembly and connection of devices. Using the same thickness and wire width, the aluminum substrate can carry higher current than the traditional fr-4. 

2.Insulation layer

Insulation layer is the core technology of aluminum substrate, mainly playing the role of bonding, insulation and heat conduction. Aluminum substrate insulation layer is the largest thermal barrier in power module structure. The better the heat conduction performance of the insulation layer is, the more beneficial it will be for the heat generated during the device operation to diffuse, and the more beneficial it will be for reducing the operating temperature of the device, so as to improve the power load of the module, reduce the volume, extend the service life and increase the power output.


  1. The metal base

The metal used for the metal base insulation metal substrate depends on the comprehensive consideration of the thermal expansion coefficient, thermal conductivity, strength, hardness, weight, surface state and cost of the metal substrate.

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CMC Usages in Papermaking Industry

  1. Paper Pulp Additives

Apply CMC into the paper pulp (add before pulping and alums mixing). CMC can disperse fiber, improve uniformity and strength of paper (bursting strength and stiffness). Using CMC with the same beating degree can shorten beating time, conserve energy. Dosage of CMC is 0.2%-0.8% of paper pulp. Can use CMC RM8-1. With the add of CMC, paper tension increases 40%-50%, tearing strength raises 50%, flexibility increased 4-5 times. Meanwhile, paper quality is of smoothness with good ink absorbency and clear printing edge. It's much better to use hard water during production.

 

  1. Surface Sizing Agent

Sound surface strength is required during high-speed printing. When there is a low beating degree or high filling content, usually adopt a surface sizing method to increase the surface strength of paper and paperboard, reduce surface absorption. Through surface sizing, cmc textiles holes of paper are sealed by a layer of sizing film. It can reduce the absorption of moisture in the air, as well as evaporation of moisture in the paper. Prevent paper from rolling up and crushing. Improve the paper absorption of ink and oil. Has the effect of grease-proof, waterproof and oil-resistant.

 

To avoid paper and paperboard surface lint and powder falling, can use CMC solution with low viscosity and medium viscosity. With medium viscosity, CMC solution can get a layer of compact grease-proof film. Usually, use CMC solution with 1%-2% concentration can get 0.1g/m2--0.5g/m2 sizing. Users can also decide CMC viscosity according to the different base paper. It can mix low and medium viscosity CMC. High purity CMC has a good property of paper film-forming. Instead, Industrial grade CMC with low purity has poor performance on paper film-forming. Dosage of CMC is 1/2-1/3 comparing with that of starch. Especially that modern paper-making factories conduct sizing with the high-speed machine, which can only apply CMC solution with lower viscosity and high purity.

 

  1. Coating Agent

Coating whiteboard paper and chrome paper usually need coating pigment. Use CMC in coating color can improve water retention and rheology effect. CMC is featured by characteristics of good dispersion and binding, with the dosage 0.5%-2.5%. The exact dosage is according to different viscosity and speed of machines.

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HFlow 1

Metal Powder Flowability Tester

HFlow-1 powder flowability tester tests the flowability of metal powder by measuring whether the sample can flow through the 2.5mm standard funnel.
The design and production of HFlow-1 Hall flow meter is based on the Chinese national standard GB / T1482-2010 and international standards ISO4490-2008.
  • Measurement: Powder flowability
  • Testing sample: metal powder
  • Technology: Hall flow meter
HFlow 1
 
Focused on technology innovation, product manufacturing, application research, and after sale service, Bettersize is making the particle size analyzer of China enter into the international advanced ranks.
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With the decrease of forest resources and the rise of global temperature, the voice of protecting valuable forest resources and seeking new materials to replace solid wood is rising. At the same time, the increasing plastic waste and various natural plant fiber materials have become a major headache for all countries.

 

In China, a nationwide strict ban on crop straw incineration has been carried out since 2017. Previously, the government encouraged crop straw smashing and returning to the field on the grounds of increasing soil fertility and fluffy degree, and keeping moisture. It is beneficial to the utilization of farmland. However, the crop straw returning to the field after smashing did not become part of the soil as expected, but remained massive after many years, and became the survival carrier of harmful insects, causing disasters to crops. For farmers, it directly leads to the reduction of output and income. Under this severe situation, how to utilize crop straw has become the top priority of governments at all levels. At the same time, it has also become a great opportunity for the development of wood plastic composite china industry.

 

Traditional anti-corrosive wood, plywood, heavy bamboo products and other materials have congenital morbidity. Their short life, easy water absorption, expansion,

deformation, mildew, cracking and other problems make many contractors of outdoor projects and scenic spots have a headache because of the annual maintenance and renovation.

Wood plastic composites have the dual advantages of plastics and wood. They are not only waterproof, moisture-proof, mildew-proof and termite-proof, but also have excellent characteristics of long life, zero formaldehyde, pollution-free, pollution-free and it is recyclable. At the same time, wood-plastic composites have good plasticity, and the quality of non-cracking, non-expanding and non-deforming of wood plastic composites saves the cost of later maintenance. As a result, wood-plastic composites have naturally become ideal wood substitutes.

 

Such a huge development space is both an opportunity and a challenge for China's wood plastic composite application processing and marketing enterprises: while vigorously developing export trade, we should also increase the popularization and promotion of China's wood plastic composite application market. For manufacturing enterprises, it is necessary to further reduce product costs and steadily improve product quality. At the same time, the research and development of new products should be strengthened. We should promote the transformation and upgrading of wood-plastic materials from decorative to structural application, so as to improve and possess the core competitiveness, seize the high-end market at home and abroad, maximize benefits and achieve industrial continuity.8466523885?profile=original

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EDM Notch

An electric pulse is a pulse generated by electrons, and a pulse is a process of changing a voltage in a short time. Electropulsing is an unsteady current field generated by a capacitor or an intermittent source. The alternating current we use can be regarded as a pulse current, and one of the cycle processes can be regarded as an electrical pulse. Modern electric pulse technology has developed to the trend of higher frequency and high energy peaks. It has a wide range of applications in materials testing, biology, medicine, nuclear energy, military and other fields. The main working principles are high energy Joule heating effect, hot pressing effect, high-frequency magnetic induction effect, electroforming and so on. Common waveforms are a rectangular, sinusoidal, rectangular, sinusoidal, group, and so on.

The EDM notch is mainly used for the production of standard sample tubes in the non-destructive testing industry, and is an indispensable auxiliary device for nondestructive testing. It can be used to make internal and external longitudinal defects on the sample tube, internal and external lateral defects, and can also make oblique defects at a certain angle according to different requirements of users, and can also make thickness measurement standard sample tubes or layered standard sample tubes. The shape has a U-shaped groove, a rectangular or square groove, a flat bottom hole, and the like. The machining precision is high, the speed is fast, the operation is simple, the degree of automation is high, and the machining depth can be set in one time, and the error is within the allowable tolerance range. The ndt testing equipment is light and easy to carry, and can be used in different field environments.

 The main features of the EDM Notch:

  • Small size, light weight and easy to carry
  • High power, fast scratching, less than 10% error
  • The distance between the internal injury position and the tube end is not limited, and the position of the wound is accurate
  • Single-chip control, simple operation, intelligent and efficient, practical
  • It is only necessary to clean the circulating oil normally, and it is basically maintenance-free

We are one of the leading EDM machine manufacturers, RFQ today!

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Rapid Prototyping Services

What is rapid prototyping?
Rapid prototyping is a kind of professional manufacturing technology that is used to produce high-quality entity models of three-dimensional designs. Prototypes are useful for design improvements and can be used as stepping stones for comprehensive production or engineering testing. With the rapid prototyping china, you can manufacture parts or the products to test for the component fit and function. According to the analysis results, you can make further adjustments (about the design, shape, materials, etc.) before the products finally enter the market. It can help you effectively save time and costs. A lot of our customers need to manufacture a entity component quickly to verify the feasibility of a design or a part. Nowadays, various kinds of rapid prototyping processes are available. You can choose the process which best suits your needs. With only thirty years around of development, rapid prototyping technology, as its name implies, has already been widely used in many areas. Meanwhile, the rapid prototyping services are still growing at a fast speed.

Different Rapid Prototyping Processes

Prototypes can be made through different rapid prototyping processes. With thirty years around of development, a variety of prototype manufacturing processes are available. In addition, they are continuing to evolve. Since companies or customers have different requirements and demands, different types of rapid prototyping processes will be chosen. So how does rapid prototyping work? Reading the following contents and you will know which rapid prototyping service suits you best.
 

SLA(StereoLithography)

  • Description: SLA is a photo-curing molding technology, which refers to the method of forming three-dimensional solid layer by layer through the polymerization reaction of liquid photosensitive resin by ultraviolet irradiation. The work piece prepared by SLA has high dimensional accuracy and is the earliest commercial 3D printing technology.
  • Printing Material: Photosensitive Resin
  • Strength: photosensitive resin is insufficient in toughness and strength and is easily broken. At the same time, under high temperature conditions, the printed parts are easy to bend and deform, and the bearing capacity is insufficient.
  • Features of finished product: SLA printed workpieces have good details and smooth surface, which can be colored by spray painting and other processes.
 
Selective Laser Sintering (SLS)
  • Description:SLS is a selective laser sintering technology, similar to SLM technology. The difference is the laser power. It is a rapid prototyping method that uses infrared laser as a heat source to sinter powder materials and form three-dimensional parts layer-by-layer.
  • Printing Material:Nylon powder, PS powder, PP powder, metal powder, ceramic powder, resin sand and coated sand (common printing materials: nylon powder, nylon plus glass fiber)
  • Strength:material performance is better than ABS products, and the strength and toughness are excellent.
  • Features of finished product:the finished product has superior mechanical properties and is suitable for direct production of measurement models, functional models and small batch of plastic parts. The disadvantage is that the precision is not high, the surface of the prototype is relatively rough, and it is generally required to be polished by hand, sprayed with glass beads, ash, oil and other post-processing.

Fused Deposition Modeling (FDM)

  • Description: FDM is a melt lamination technology, that uses high temperature to melt materials, extrudes them into filaments through the print head, and builds up on component platform. FDM is the simplest and most common 3D printing technology, which is commonly used in desktop 3D printing devices.
  • Printing Material:usually ABS or PLA wire
  • Strength: PLA is brittle,its surface hardness is higher, and it is easier to break when bending. ABS parts are more resilient than PLA parts, and are easy to bend rather than break under pressure. Moreover, ABS has higher strength, better plasticity, and easier post-processing.
  • Features of finished product: the printing layer is thick, the precision is poor, and the stratification of the surface is very obvious. Under high temperature conditions, the printed parts are easy to bend and deform, and the bearing capacity is insufficient.
 
CNC
  • Description: CNC machining is a subtractive manufacturing process in which the software control system issues instructions to make the tool perform various required movements. In this process, various precision tools are used to remove the raw materials and make parts or products.
  • Materials: CNC processing materials are quite extensive, including plastics and metals. Plastic hand model materials are: ABS, acrylic, PP, PC, POM, nylon, bakelite, etc.; Metal hand model materials are: aluminum, aluminum Magnesium alloy, aluminum zinc alloy, copper, steel, iron, etc.
  • Strength: different materials have different strengths and are difficult to list
  • Features of finished product: CNC machined parts have a smooth surface, high dimensional accuracy, and the best compactness, and there are a variety of post-processing options.
 

Vacuum Casting

  • Description: vacuum casting technology is to use the prototype (rapid prototyping parts, CNC hand parts) to make a silicone rapid prototyping mold under vacuum condition. It also uses PU, ABS and other materials to pour, so as to clone the same copy with the product prototype.
  • Material: ABS, PU, PVC, silicone, transparent ABS
  • Strength: the strength and hardness are lower than the CNC hand parts. Common PU material is relatively brittle, toughness and high temperature resistance are poor. ABS has higher strength, better plasticity, and easier post-processing.
  • Features of finished product: easy to shrink and deform; the accuracy is generally only 0.2mm. In addition, the vacuum casting hand parts can only resist high temperature of about 60 degrees, and is lower than CNC hand parts in strength and hardness.
 

Advantages of Rapid Prototyping

  • High degree of automation in forming process
  • Precise entity replication
  • High dimensional accuracy. Dimensional accuracy can be up to±0.1mm
  • Excellent surface quality
  • Unlimited design space
  • No assembly required
  • Fast forming speed and shorter delivery time
  • Saving raw materials
  • Improving product design
 
Duch Group Provides:
Complete process equipment: we are the only independent manufacturer with large scale in China and can provide both small batch and large batch production services for subtractive manufacturing and additive manufacturing. We have self-developed high-speed intelligent 3D printing equipment, large CNC machining center, vacuum casting machine, low-pressure perfusion and other advanced equipment as well as post-processing production lines such as polishing, painting and so on.
Leading technology: with the latest technology in the world, four world-first 3D printing technology can be diversified, rapid, low-cost, accelerate the research and development speed of enterprise products, and achieve world-class production capacity.
One-stop 3d printing service: 3D printing integrated solution provider, with product development and service output capabilities from equipment, software, materials to cloud printing, can provide global users one-stop service from product design and development to final mass production.
 

Application of Rapid Prototyping

Shoemaking
3D printing is advancing the revolution of shoemaking industry with the aim of reducing costs, reducing outsourcing, greatly increasing flexibility and preparing for the era of personalized customization and tailoring. Whether through our on-demand production services or our advanced 3D printers, Vistar is happy to participate in this new industrial revolution with our customers.

shoemaking

Medical
It has a high requirement on accuracy and reliability related to the R&D and production of the medical industry. Vistar 3D printing has earned the support and trust from many hospitals and other medical clients through the advantages of on-demand manufacturing service.
medical


Fashion and Cultural Creative
The additive manufacturing provides an entirely new medium for artists that can almost realize any idea. For the fashion designer, Vistar’ production solutions creat an exciting new age which has enabled designers to gain significant on product launches and personalization.
fashion and cultural & creative

Automobile
The developed at top speed and innovation of the automotive industry is highly compatible with Vistar's manufacturing innovation. 3D printing and related technologies can significantly reduce time to market, as well as make the personalized customization possible.

automobile


Dentistry
3D printing technology is becoming more and more mature and popular in the dental market. The total value of dental components manufactured by 3D printing solution exceeded 4 billion US dollars in 2016. The era of digital dentistry is just beginning and Vistar can help you transition easily.
dentistry

Electronic Product
Diversified electronic industry technology update with a high speed, but Vistar has always been able to adapt to this rhythm and provide customers with required services. Whether it's making new models quickly or making advanced stereo curable 3D printers, you'll be able to make your bold and subtle design more powerful.

electronic product

Future of Rapid Prototyping

  • The development of equipment to large-scale
  • Diversification of Materials development
  • From the ground to space
  • Deep space exploration
  • Benefit thousands of households

 

Rapid Prototyping
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Guide & Translator

Guide & Translator

Yiwu Translator

How to get to China
China is located in the east of Asia near the Pacific West Coast. It's famous as the world's factory product sourcing.
There are some famous cities in China which have international airports, Guangzhou/Shenzhen/Shanghai/Beijing/Hangzhou.

There are some ways to get to these airports,

If you are from North America, such as America, you can take an airplane from Los Angeles International Airport(LAX)to Shanghai Pudong International Airport(PVG)

If you are from South America, such as Brazil, you can take an airplane from Guarulhos International Airport(GRU)to Shanghai Pudong International Airport(PVG)

If you are from Europe, such as England, you can take an airplane from London Heathrow airport(LHR) to Shanghai Pudong International Airport(PVG)

If you are from Asia, such as Malaysia, you can take an airplane from Kuala Lumpur International Airport(KUL) to Shanghai Pudong International Airport(PVG)

If you are from Africa, such as Ghana, you can take an airplane from Kotoka International Airport(ACC) to Shanghai Pudong International Airport(PVG)

If you are from Oceania, such as Australia, you can take an airplane from Sydney Kingsford Smith International Airport(SYD) to Shanghai Pudong International Airport(PVG)

Or you can choose the closest airport to your place who can arrive in China.
If you are not from these countries, you can call us, it's our pleasure to hear from you.

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Tableware Molded Pulp Trays

We fulfill our responsibility to protect the environment and call on all of us to act together. Therefore, in order to reduce the pollution of plastic tableware to the society, our company puts forward the production of pulp food trays as tableware, the main products include paper cup, paper lid, paper bowl, paper plate and paper knife and paper fork. The materials of these molded pulp tray products are all made of pure natural material, so as to ensure the safe consumption of consumers.

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Size:Customized as per request

Material: bamboo, sugarcane byproduct, bagasse

Type: tray

Color: White

Advantage: automatic machine made, High-Quality, 100% biodegradable, allmeets export standard

Process Type: Pulp Molding

Usage:bowl/plate/ saucer/cup

Use: food

Package: with PE bag pack in corrugated master shipping carton box and standard pallet

Design: Your own design and OEM welcome

Design software: AI PDF CAD PRO E SOLIDWORKS

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Fruit And Vegetable Juice

 APPLE JUICE

Apple juice in the press process will bring a lot of impurities in pulp, pectin, starch, plant fiber, microorganisms, bacteria, and other impurities. Thus, it's not easy to produce apple juice concentrate through traditional methods. Due to high sugar content in apple juice, microorganisms and bacteria are easy to breed which makes apple juice fermentation ferment and deteriorate. 

apple juice


High-temperature sterilization will result in product discoloration and loss of flavor. The traditional filtration methods (diatomaceous earth, framed filter) can not completely retain the impurities, can play a temporary clarification. Under the influence of time, temperature, charge,re-flocculation of dissolved impurities form visible matters, resulting in apple juice turbidity and precipitation.

Macromolecular impurities such as plant fiber, starch, bacteria and other impurities in apple juice are completely intercepted to realize the clarification and impurity removal of apple juice by crossflow microfiltration.

Cross-flow design is adopted to solve the problem of filter clogging and will greatly improve the efficiency of producing juice concentrate.

membrane for juice


Advantages:

  • Filtrate is clear with high transmittance
  • Return muddy does not happen for a long time
  • No secondary precipitation produced
  • No need to add a filter aid
  • Purely physical operation at room temperature
  • No chemical reaction
  • Does not destroy the heat-sensitive substances and affect the fruit flavor easy to use
  • Reduce labor intensity and production costs
  • Increase productivity
  • Small footprint
  • Sanitary material

 CIDER JUICE

Ceramic membrane filtration can also be used to produce cider juice, such as apple cider juice.

Process:

cider juice
cider juice

 PEAR JUICE


In the fruit juice industry, fruit juice membrane technology is used mainly to clarify the juice by means of  ceramic ultrafiltration and microfiltration and to concentrate it by means of nanofiltration and reverse osmosis.

We look at enzyme immobilization techniques to improve filtration performance and operation methods to quantify fouling.

Membrane fouling is a critical issue and inhibits the broader application of membranes in the fruit production industry. Pectin and its derivatives form a gel-like structure over the membrane surface, thereby reducing the permeate flux. In order to degrade pectin, the raw juice is usually subjected to an enzymatic treatment with pectinase, which hydrolyzes pectin and causes its protein complexes to flocculate. The resulting juice has reduced viscosity and much lower pectin content, which is advantageous in the subsequent filtration processes.

pear juice

 MUSHROOM JUICE


Mushroom is a common edible fungus in life, rich in protein, 18 kinds of amino acids, vitamins and calcium, iron and other minerals.

However, mushroom's respiration is exuberant after picking. The mushroom quickly becomes browning and changing taste at room temperature and is only for short-term storage. Dried mushrooms are easy to preserve, but the nutritional value is reduced. If you want to store for a long time, you need a higher condition, even in these special circumstances, it is easy to be infected by microorganisms and spoilage, which greatly affects its nutritional value.

mushroom juice


After the mushroom is processed into mushroom juice, it not only reduces the storage cost, but also is convenient to eat, and keeps the original nutrients of mushroom. This is the latest type of fruit and vegetable juice drink.

 LUCERNE JUICE


With the development of science and technology, the research on lucerne has been deeply studied, and the nutrition and health function of lucerne have been highly evaluated. Due to rich crude protein cellulose, vitamins, minerals, and complete amino acid composition, it is a worth developing juice in the beverage field.

lucerne juice

 VEGETABLE JUICE


Membrane separation processes are widely used in the production of beverage materials and the treatment of water for drinking. The technology can be applied to deacidify, debitter, clarify, concentrate and filter vegetable juices.  It plays an important role in the improvement of product quality, the increase in output and the decrease in production cost. 

Vegetable juices are used due to convenience. The juices are rich in various minerals, vitamins, and other nutrients. To process the juices and their clarification and/or concentration is required. The membranes are being used for these purposes. These processes are preferred over others because of high efficiency and low temperature.

Membranes and their characteristics have been proved for knowing suitability of membranes for vegetable juices. Membrane separation is low-temperature process in which the organoleptic quality of the juice is almost retained.

vegetable juice


Ultra filtration method combined with the enzyme treatment method than conventional vegetable production's strength lies in

  • Cost saving clarifying agent
  • Clarity increases
  • Cost saving aid
  • Reduce cost centrifuge, filter, reaction tanks
  • Save enzyme amount
  • Reduce process losses
  • Stable and reliable quality
  • Continuous operation
  • Small footprint
  • Simple operation & maintenance
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White CSA Cements

White CSA Cements

The white csa cements is a hydraulic binder based on calcium sulfoaluminate, specially designed to be blended with anhydrite and some other materials such as sand, crashed stone, pigments to make artificial stone and countertops.
The white csa cements is manufactured under a strict quality assurance systems. 

Advantages by using white csa cements:

Our products are not inferior to Denka CSA
The color of white csa cements is lighter than other cement. It can be easily colored by pigment.
Hydrated products have hydration alumina gel and ettringite crystals which can generate beautiful luster on surface of the artificial stone.
White csa cements is a low alkali cement, can avoid the re-alkali
White csa cements is also a low CO2 emissions cement
Sulphate resistance
Etc.

Storage of the white csa cements:

The white csa cements is normally supplied in one-ton big bag which includes a moisture resistant barrier. However, in common with all hydraulic binders, white csa cements must be kept from moisture, and can retain its properties for up to six monthswhen properly stored.
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Dynamic Flow Balancing Valve

Function: The dynamic flow balance valve keeps the flow constant between 31-600KPa.

Role: Keep the flow through the valve constant.

Theory: When the incoming flow pressure P1 increases, the sleeve of the valve sleeve moves downward, compressing the spring inside the valve bladder, and reducing the flow area of the valve hole at the bottom of the valve bladder, that is, reducing the Kv value of the valve bladder. Thus, although the pressure difference ΔP across the damper is increased, the Kv value is reduced, and the product of the two, that is, the flow rate Q, remains substantially unchanged under the action of the spring.

The pipeline of the constant flow system is installed at the end without stepping.

The pump system is chilled water pump and cooling water pump to prevent the pump from over-flowing when the number of units changes.

A place where a constant flow rate is required, such as a cooling tower.

Water supply pipes or return pipes can be installed.

Selection and precautions

Selection: Only according to the flow selection.

  1. The valve pressure working range is greater than the minimum starting pressure difference.
  2. It cannot be installed in series with the proportional integral electric control valve.

Constant flow system hydraulic balance scheme

Dynamic differential pressure balancing valve

Theory: The high pressure upstream of the electric regulating valve is guided to the lower side of the control bellows through the pressure guiding tube; the pressure downstream of the electric regulating valve is guided to the upper side of the control bellows through the external pressure guiding tube or the internal pressure guiding hole.

When the pressure on the high pressure side rises, the bellows moves upwards, causing the valve stem and the valve cone to move upward, causing the pressure on the medium pressure side to rise, thereby dynamically maintaining the pressure difference between the medium pressure side and the high pressure side and the spring. The preset force balance ensures the dynamic constant of the pressure difference across the electric control valve. When the pressure on the high pressure side is lowered, the bellows moves downward, and the situation is similar.

Adjust the differential pressure of the spring to adjust the differential pressure setting.

Function: Dynamically keep the pressure difference between the controlled points constant at the set value.

Function:

Ensure dynamic chilled water balancing of the controlled system to prevent dynamic imbalance in the system.

Prevents noise and vibration from being generated by the electric control valve regulating valve.

The regulating valve in the system can be selected with a driver with less driving force to avoid the danger of burning the valve.

Provides good valve authority for the regulating valve, ensures the realization of the linear heat-dissipating controlled system, and ensures the rapid and stable system.

The debugging workload is very small, the installation cycle is accelerated, and debugging can be avoided when the system is changed or expanded.

Conveniently correct the difference between actual and design conditions.

Maximum flow limit function.

Ensure dynamic hydraulic balance of the controlled system.

The dynamic differential pressure balancing valve dynamically maintains the pressure difference ΔP between the controlled points constant at the set value, and the Kv value of the other unoperated electric regulating valve does not change, so the water quantity of the branch is dynamically constant. The amount of water in the branch changes only when the electric regulating valve is actuated, that is, when the Kv value changes.

Prevent electric noise and vibration from the electric control valve.

The adjustment valve uses a driver with a smaller driving force.

The pressure difference between the two ends of the electric regulating valve is constant, and the pressure fluctuation of the system is absorbed by the dynamic differential pressure balancing valve. Therefore, the adjusting valve uses a driver with a smaller driving force.

Provides good valve authority for the regulator valve.

Definition of valve authority:

The pipeline of the fixed and variable flow system is installed at the end without step by step.

The pipeline, branch pipe or riser of the variable flow system is installed without stepping.

The valve of the single-pressure pipe must be installed back to the water, and the valve water supply or return pipe of the double-pressure pipe can be installed.

Selection: The valve body is selected according to the Kv value. The Kv value of the selected valve is greater than the design value. The valve pressure drop is used to calculate the valve Kv value, not the control pressure difference. Select the drive with a controlled differential pressure.

Dynamic differential pressure balance electric control valve

Theory: The essence is that a dynamic differential pressure balancing valve and an electric regulating valve are combined into one. The valve is a double valve cone structure, the upper valve cone is the valve cone of the electric regulating valve, and the lower valve cone is the valve of the dynamic differential pressure balancing valve. Cone, the dynamic differential pressure balancing valve provides a constant pressure difference (0.2Bar or 0.5Bar) before and after the electric valve cone (upper valve cone). The pressure fluctuation of the system is absorbed by the dynamic differential pressure balancing valve, when the electric valve cone ( When the upper valve cone is not actuated, the valve flow capacity kv is constant, and the pressure difference ΔP is constant, so the flow rate Q of the valve is constant; only when the electric valve cone (upper valve cone) acts, the flow through the valve will Changes have occurred, thus achieving a perfect unification of dynamic balance and adjustment functions.

Process: The upper and lower ends of the diaphragm form a balance with the force of the internal spring, ie P1 = P2+P spring.

When the system pressure fluctuates, when P1 increases, the balance is destroyed, and the force below the diaphragm is greater than the upper side, so the diaphragm will move upwards, close the small differential pressure control valve spool, so that P2 increases and reaches equilibrium again. Show.

On the contrary, the differential pressure control valve is opened so that the pressure difference of the regulating valve spool is always constant throughout the operation of the switch, so that the flow rate change through the valve is only one-to-one corresponding to the opening degree of the regulating valve.

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The pipeline of the variable flow system is installed at the end without stepping.

The main advantage:

  1. The occupied space is small, and the automatic balance of the system is good.
  2. One leak point is missing for each group of valves.
  3. Easy to install and maintain.

Disadvantages:

  1. It is not as flexible as the split solution (dynamic differential pressure balance valve + electric control valve), and the differential pressure of the split solution can be adjusted on site.

Variable flow system hydraulic balance scheme

Solutions to common phenomena of hydraulic imbalance:

  1. The system is uneven in temperature and heat. The running energy consumption of the pump is too high → hydraulic calculation, reasonable piping, the same program, static balancing valve. Dynamic differential pressure balancing valve or dynamic flow balancing valve, integral valve.
  2. Variable flow system operation is out of regulation. The load is stable, but the room regulating valve moves frequently, causing the room temperature to fluctuate frequently. The system stabilization time is too long → dynamic differential pressure balance valve or integral valve.
  3. The regulating valve produces noise and vibration. The regulating valve is not closed, and there is a danger of burning the valve in severe cases. The valve of the regulating valve is too small, the curve of the valve is deformed, and the linear heat-dissipating controlled system becomes a controlled system of the throwing heat. Dynamic differential pressure balancing valve or integral valve.

 

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Soft Crease® Scoring

We are the world leader in radio frequency (RF) creasing. While other methods produce clear plastic boxes with stiff or fragile scores and sharp edges, our proprietary Soft Crease scoring technology uses RF energy to cause a controlled displacement of material from the score lines. This results in more uniform creases, with less folding resistance, ensuring that Klearfold® clear plastic boxes fold precisely, have clean lines, and maintain their crisp shape. We are unique in our ability to RF crease APET and RPET box-grade plastics, to produce environmentally-preferred plastic boxes with superior strength and performance characteristics.

As one of the plastic box manufacturers in China,Hlpklearfoldpvc will keep strive to offer you  clear plastic packaging and clear plastic boxes with high quality.8466521065?profile=original

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