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Fiber optic cable line failure is called cable line failure because of external factors or fiber itself. Fiber optic cable interruption does not necessarily lead to business interfix, which causes business interfix to be handled in the order of fault repair, without affecting the order of service interfix that does not constitute a fault.

Classification of Faults in Optical Cable Lines

Fully Broken Optical Cable
(1) Assuming there are reservations on both sides of the site, centralized reservations are adopted and a joint is added.
(2) There are joints near the fault point and there are enough reservations on the spot. Adopting pull reservations, use the original joints to dispose of them；partial optical fiber interfix
(3) On the premise of not affecting other optical fibers, open skylight connection method is recommended to stop the repair of faulty optical fibers.
Cause Analysis of Cable Line Faults

Circuit Faults Caused by External Force Elements

(1) External excavation: to deal with the breakdown of excavator construction, pipeline optical cable is tested due to the opening of the fault point near the hand well and reflected on whether the cable can be damaged in the hand well, and bidirectional testing of the suffixed optical cable is carried out.
(2) Vehicle hang-up: When dealing with vehicle hang-up faults, we should first test the two directions of fiber optic cable stop at the fault point, confirming the number of fiber optic cable block points, and then dispose them pertinently.
(3) Shooting: This kind of fault will not make all optical fibers suffix, but part of the cable or optical fibers are damaged, and this kind of fault is difficult to find.

Line Faults Caused by Fiber Optics

(1) Natural fibre breakage: As the fibers are drawn from glass and plastic fibers, they are relatively fragile. Static fatigue will occur over time, and the aging of the fibers will lead to natural fibre breakage.
(2) The influence of ambient temperature: too low temperature will cause water freezing in the junction box, longitudinal shrinkage of the cable sheath, putting the the pressure on the optical fiber to increase attenuation or optical fiber suffix.

Circuit Faults Caused by Artificial Elements

(1) Obstacles: Artificial failures caused by technicians in maintenance, installation and other activities.
(2) Stealing: criminals cut optical cables to block them.
(3) Damage: man-made and deliberate destruction, constituting the blocking of optical cables.

Fault Disposal of Optical Cable Line

(1) All-resistance fault with optical cable replaceable in the same route. The attendants in the computer room should block the business on the optical fibers with other good core substitutes in accordance with the emergency plan at the first time, and then repair the faulty optical fibers as soon as possible.
(2) If there is no all-resistance fault that can be replaced by optical fibers, the emergency plan should be followed to implement the direct repair and termination of replacing or blocking points. When replacing or repairing, the criterion of "first important is the critical circuit, second important is the secondary circuit" should be followed.
(3) Non-total resistance occurs in the optical cable and residual optical fibers are available. The service on the faulty core is replaced by the spare core or other optical cables.
(4) There are no residual fibers or co-routing fibers. Assuming that the blocked fibers are equipped with important circuits, other non-important circuits are used to replace the blocked fibers with fibers, and the faulty cores are repaired urgently by infix splicing.
(5) The transmission quality is stable and the system is sometimes good or bad. Assuming that there is an alternative free core or other co-routing optical cable, the service on the optical fiber can be transferred to other optical fibers.

Shenzhen Yutai Photoelectric Communication Co., Ltd. is a professional fiber optic cable supplier, providing high-quality optical cables. Welcome to buy. 

For small oil factory using- the processing capacity from 50kg/h to 200kg/h, with the characteristics of the small investment, wide compatibility, high efficiency, low consumption, simple operating, stable function, easy maintenance, high productivity, and high oil output.

Product Description

Note:

This weight has no electro-motors weight.

① It is normal that sometimes the actual results may be a little different from those in the index because the oil plant’s type, quality and original content may be different in different areas.

② The day capacity (t/24 h) is based on using hot way to squeeze one time. The more the squeeze times are, the lower the date capacity is.

The spiral oil press produced by our company is suitable for squeezing vegetable oil from rapeseed, cottonseed, soybean, shelled peanut, flax seed, tung oilseed, sunflower seed, palm kernel, etc. The product has characteristics of the small investment, high capacity, strong compatibility, and high efficiency. It is widely used in the small oil refinery and rural enterprise.

Main Features of Small And Medium Scale Single Small Oil Press Machine

Below features are based on oil plants above the average quality smoothly and continuously squeezed after such pretreatments as screening, husking, flaking, cooking, etc.

Applicable oil plants and Business of Small And Medium Scale Single Oil Press Machine

1. More than 30 types of oil plants, such as rapeseed, cottonseed, soybean, shelled peanut, flax seed, sunflower seed, palm kernel, etc.
2. Uses in oil factory, oil mill, and privates oil production workshop.
3. Good both for pressing raw oil material and roasted oil material.
4. Performs well both in cold pressing and hot pressing.
5. The lower residue oil of the dry cake.

The product conforms to the "Technology Standard of Agricultural Spiral Oil Press" under JB/T9793-2013 of the People's Republic of China.

Small oil press for sale! RFQ today!

Custom color box:
Do you have a detailed plan for your product packaging? Do you wish your color box to be unique? Well, choose our custom color box service. In our custom color box, you can design the box in your image, whether it's about the shape of the box, the material of the box, or the appearance of the box, as long as you tell us what you want, we will produce a satisfactory box for you based on these.

Environmentally friendly and beautiful color box:
We make use of 100 % biodegradable substances for producing packaging boxes. We can provide custom color boxes, such as custom color style box, custom color corrugated pizza style box, custom PET window style rigid box and custom book style rigid box. These boxes are in high strength stability and easy to fold. And the custom PET window style rigid box, you can see all the insider products from the transparent PET cover, it can help you attrack customers easily. 

Please note:
Since you have chosen a custom color box, let us know the information as follows:
-The size of the products (Length x Width x Height)
-The material
-The surface finishing
-The printing colors (could quote 4C if you’re not sure)
-The quantity
-If it is possible, please also provide with pictures or design sketch for checking. Samples will be best for clarifying. If not, we will recommend relevant products with details for reference.

Ceramic Nanofiltration membrane is relatively recent membrane filtration system, with the purpose of softening and removal of disinfection by-product precursors such as natural organic matter and synthetic organic matter. More ultrafiltration membrane system details here!

CHARACTERISTICS OF NANOFILTRATION CERAMIC MEMBRANE ELEMENT

Chemical, mechanical and thermal stability

Ability of steam sterilization and back flushing

High abrasion resistance

High fluxes

High durability

Bacteria resistance

Possibility of regeneration

Dry storage after cleaning

OVER VIEW OF NANOFILTRATION CERAMIC MEMBRANE ELEMENT

Ceramic nanofiltration membrane is widely used in petroleum and chemical industry, medicine, metallurgy and other processes involving harsh systems due to its unique thermal stability and chemical stability, resistance to organic solvents, disinfection, regeneration, and backwashing. In the industrial field, ceramic membrane system has become one of the fastest growing and most promising membrane materials in the membrane field.

1. Nanofiltration technology

Nanofiltration membrane technology is a new type of pressure-driven separation technology between ultrafiltration and reverse osmosis. It can not only effectively separate the relative molecular mass of 200-1000 by sieving, but also generate the Donnan effect by electrostatic action, with high removal rate for divalent and high valence ions.

In recent years, nanofiltration technology has gradually occupied an important position in the petrochemical, food processing, wastewater treatment, medical technology, and energy industries, and is a common technology for achieving sustainable development.

2. Ceramic nanofiltration membrane

Nanofiltration membrane materials are a key core of nanofiltration technology. Ceramic nanofiltration membrane has excellent thermal stability, chemical stability, high mechanical strength, acid and alkali resistance, microbial erosion, chlorine and other oxidizing substances, anti-pollution, etc. It has become the fastest growing and most developed in the membrane field and one of the prospective membrane materials.

APPLICATION OF NANOFILTRATION CERAMIC MEMBRANE ELEMENT

1. Chemical industry (membrane technology in the chemical industry)

a. Application in catalyst recovery in the petrochemical industry

In petrochemical and chemical production, the application of the catalyst is very extensive, and it is generally necessary to separate the product and the catalyst after the reaction. Ceramic nanofiltration membrane has good heat resistance, chemical solvent resistance, and good mechanical strength. It adopts cross-flow filtration method in catalytic reaction solid-liquid separation and has the advantages of high-temperature resistance, acid and alkali resistance, solvent resistance, etc. The coupling can fully improve the efficiency of the reactor, high separation precision, and can separate the nano-scale catalyst.

b. Application in brine purification in the field of the chlor-alkali chemical industry

Ceramic nanofiltration membrane has excellent performance such as pollution resistance and long life and is widely used in the field of chlor-alkali chemical industry. Using efficient "cross-flow" filtration, it is difficult to achieve results and advantages with other refining and filtration technologies.

2. Fine separation of medicine

Compared with traditional organic membranes, ceramic composite nanofiltration membranes have the unique advantages of high separation precision, guaranteed filtrate quality, high flux filtration, high product yield, low wastewater, low cleaning frequency and no need for additives. It can realize desalting and pre-concentration of target products and has been successfully applied to biological enterprises such as glutamic acid, citric acid, itaconic acid, and vitamin C.

3. Environmental water treatment (water filtration membrane)

The integrated process with ceramic membrane + organic membrane as the core is widely used in: oily water filtration system, metallurgical wastewater treatment, chemical wastewater treatment, paper mill wastewater treatment, large-scale pure water and ultrapure water preparation, zero discharge of power plant brine.

4. Gas purification

The integrated process technology with ceramic nanofiltration membrane as the core has the unique advantages of high separation precision, short process, acid and alkali resistance, high-temperature resistance and pollution resistance. It is widely used in industrial flue gas desulfurization, blast furnace solid-gas separation and automobile exhaust gas treatment. Wait.

5. New materials field

The ceramic nanofiltration membrane can effectively remove impurity ions in the slurry and efficiently prepare ultrafine ultra-pure nano-powder. At present, it has been applied to the purification of nano-powders such as nano-catalysts and ultra-pure non-ferrous metals. It can also be used in the purification process of nano-materials such as lithium batteries and graphene so that the impurity components in the production process can be removed in time, which is beneficial to the improvement of product yield.

High Voltage Insulator Coating (HVIC) is used on excessive voltage insulators to forestall flashover and arcing, particular in severely contaminated environments. Following the following 2 tips, you will get good results: Clean all surfaces of dust, grease and wax & Check temperature and humidity when applying.

High Voltage Coating Function

Insulator contamination, from salt spray, industrial pollutants, and even wasteland sand, can lead to costly power interruptions due to arcing and flashover and lead to well-known preservation issues. In order to reduce protection costs & increase reliability, I’d like to use our high-voltage coating to enhance your utility reputation.

The high voltage insulators are exposed to harsh environmental prerequisites as excessive temperature and moisture and as properly as serious pollution due to coastal, industrial, agricultural and desert regions. These factors end result in excessive leakage contemporary over the surface of ceramic and glass insulators that may leads to flashover.

Room Temperature Vulcanizing (RTV) silicone rubber coating over the floor of porcelain and glass insulators combines their excessive mechanical electricity with superior hydrophobicity conduct of silicone rubber that leads to extremely discount of leakage cutting-edge in areas with excessive pollution.

Their special and patented method presents a particularly hydrophobic surface for its whole life. These coating are no longer affected by using UV light, corona discharge, chemical contaminants, salt, excessive temperature or corrosive environments.

Why Choose Ruisen?

Fujian Ruisen New Materials Co., Ltd. with years of extensive, deep and successful experience and presence in hundreds huge projects from Asia to America, is the most famous and highly valued provider of High Voltage Insulator Coating in all over the world. Ruisen RTV-II coating is a room temperature vulcanizing (RTV) silicone rubber product, RTV-II coating is widely used in electrical power system (power plant, overhead line, transmission line, substation, switch yard, distribution etc.) to prevent flash over, arcing etc. under humidity, heavy fog weather or wet weather. Especially in heavy pollution areas such as industrial park, desert and coastal regions.

Enhancing gird reliability and eliminate pollution flashover under pollution conditions without compromising physical integrity of equipment.

Define of 6 Section Boom Concrete Pump Truck

The six section pump truck, as the name implies, is a product type of the pump truck. With the help of six steel arms, it creatively USES bionics technology to integrate the mechanism of human hand movement and insect foot movement into the design of concrete pump truck pump frame. It combines finite element, dynamic simulation and other advanced design methods.

Advantage of 6 Section Boom Concrete Pump Truck

The six section technology greatly improves the utilization rate and flexibility of the arms frame. Compared with the five section boom, under the same length, the effective placing height is increased by 15%, and the effective placing range is increased by 20%. Meanwhile, based on the bionics design, the initial boom is long and end boom is short. The opening space is smaller, and the booms frame is more flexible. For example: At the same height of 50M, the real casting height of six section boom is more than 4M higher than that of five section boom. the 50M six booms =54M five booms. The pump truck has a higher cost performance.

1. Structure

The pump truck adopts three-level telescopic X leg, with innovative use of sprocket + tied oil cylinder of the supporting leg drive mode. It solved the X - type leg three - level stretching technical problem. By adopting the structure of six arms, the effective height of placing can be increased. Equipped with the function of unilateral support, it can satisfy different requirements from the construction site.

2. Pumping of hydraulic pressure

The pump truck adopts the super-large square volume pumping system, and the maximum theoretical square volume can reach 200 square meters/h. The pump square volume can reach 140 square meters/h even if it adopts high pressure. This 200/140 pump unit is configured as the highest level of pump square volume of domestic pump trucks. It adopts full-automatic high-low voltage switching technology, which enables the operation of high-low voltage switching to be completed as soon as the electric control button is pressed gently. There is no need to dismantle the pipe. It is without any leakage. And the blocked pipe can be removed quickly. What’s more, the use of the latest quick change pump oil cylinder, can greatly save the time of replacing concrete piston.

3. Electronic control

For the first time, it adopts a duplex remote control with feedback display. The remote control can display a lot of pump working data in real time screen. After combining the functions of the remote control and electric high and low voltage, the machine operator can clearly see the working status. It is more convenient for the operators to timely understand the operating parameters of the pump truck, and to better complete various tasks.

When selecting a concrete pump truck, we think about our authentic development needs. The longer the dimension of the concrete pump truck boom,the longer distance and the higher peak the material can be transported to. However, if it is used for concrete construction in some narrow building site, the long boom can also not be a right thing. The long arm will not only cause value waste, but additionally make the concrete pump truck unable to be deployed in such a construction site. Therefore, in the true manufacturing process, we should consider our constructing conditions, practicality, economy, safety, maintainability, In different respects, pick out a pump truck with the appropriate concrete pump truck dimensions. We must pick out concrete pump in accordance to the local establishing and therental market conditions. Teila supplies pump trucks with a range of boom sections, consisting of four sections, 5 sections and 6 sections.

LED advertising roadshow trucks aim at the mobile advertising market as a display solution. It is an extension of LED advertising media, used for mobile outdoor advertising, stage background, information media, live matches.

The flexibility to move the electric chassis can lift the screen, ultra-thin design, easy to install easy to dismantle, use aluminum alloy box, greatly reducing the weight of car display, easy to light and flexible movement. IP65, Car Screen work from the weather, the use of industrial computer control, stable and reliable performance. We have various roadshow trucks for sale.

Advantage Specifications

The advantage of Mobile Concert Stage Trailer With LED Screen

1. DIP LED encapsulation confirm the high brightness even under strong sunlight
   2. Good protection level waterproof IP65, anti-corrosion, oxidation resistance, long life span
   3. Long viewing distance, High definition, Good uniformity
   4. Brightness can be adjusted automatically according to different surroundings,
   5. Can be set to open and close the screen automatically
   6. Can be fixed on the wall, by pole support on the street, on top of building, or for stage rental hanging to meet the request of concert stage background, event show, live broadcasting, live meeting, banquet, party, etc, to display the content what you want, by video, graphics, animation etc, connect with PC computer or network, also can remote control with asynchronous system, Wifi control, 3G control.
   7. Widely used for outdoor commercial advertising, stage rental, traffic advertising, mobile truck advertising, sports stadium advertising etc.
   8. P6 P8 P10 type screen is optional.
   9. We can provide Dongfeng, Foton, FAW, JAC, JMC, SINOTRUK HOWO, or any other Chinese truck chassis brand.

The specification of Mobile Stage Roadshow Truck With LED Screen

We have mobile stage truck for sale, don’t hesitate to contact.

Semi Side Dump Trailer is suitable for a case where the vehicle is difficult to turn around or needs to be changed with the direction of unloading. According to a different needs, the cargo box could be regular rectangle shape, U shape, multiple doors type, etc.. What should we pay attention to when choosing a Semi side dump trailer sales? Generally, the height of the panel of the Semi Side Dump Trailer does not exceed 0.6 meters. The hydraulic cylinder is an important part of the Semi Side Dump Trailer.

According to the different tonnages of the load, there are generally 110, 125, 130, 150 and other diameters. Generally if standard load does not exceed 60 tons then use type 110 with 5+1 (5 Lifting cylinder, a shifting cylinder) or 4+1 of 130; heavy-duty 80-120 tons generally use 6+1 or 7+1 tons of 150 cylinders. The displacement cylinder is generally a 160 or 180 cylinder. The hydraulic cylinder bracket carries a large part of the weight of the cargo when it is lifted, and the firmness of the bracket is important. The shaft of the joint between the hydraulic cylinder and the sub-frame should be well protected, otherwise it will be easy to bend. In addition, the diagonal reinforcement is important, and the more the support points, the higher the reliability. The diagonal bracing, when rolling over, the majority of the weight of the cargo is supported by the diagonal braces. Once the bracing is problematic, it is easy to cause a rollover accident, so the reinforcement of the diagonal braces is very important. Generally, the 13-meter rollover dump truck has 5 pivot points. The girders are very important for a semi-trailer, and the main I beam for Semi Side Dump Trailer are generally larger than the main I beam of vans type semi trailer of the same weight. The reason is that when Semi Side Dump Trailer is turned sideways, the main I beam are unevenly stressed, and the longitudinal beams on one side of the main I beam are stressed, and the requirements for the main I beam are higher than those of ordinary semi trailer. Unlike Semi End Dump Trailer, Semi Side Dump Trailer is suitable for cargo with a small rest angle. However, Semi Side Dump Trailer can load more than Semi End Dump Trailer.

Welcome discussion on the distributor, sole agent, and project cooperation.

Hope ULTRATON utility trailer manufacturers can help you build up and develop business greater.

At present, pvc membrane welding machine has been widely promoted in a number of plastic welding industry. Various welding defects are inevitable in the process of use. In this article, it mainly analyzes how to solve the problems in debugging or welding.

1.Crush and bruise

Pressing injury and abrasion are common problems in the process of pvc membrane machine. Sometimes it's not so serious, and it just gets white or marks. When you encounter such problems, the first thing to do is to ensure that the location of the tooling is not out of alignment. First let off the air of the cylinder, press down the welding head, and carefully observe whether the welding head position of the scratch is correct. If the welding head is in the correct position, or if the abrasion or compression occurs on the support (or lower cover), then it is necessary to observe whether there is any interference between the tooling and the product. If it is old tooling, it is suggested to clean the tooling with alcohol at this time. If it is a new fixture, lightly rub the scratch (especially at the bottom of the step) with sandpaper to prevent burrs. In addition, observe whether the air pressure of the cylinder is too large during welding, whether the film of the pad has not been changed for a long time during welding, or whether there are foreign bodies stuck on the film.

If the above work is done, the pressing injury still exists, it can be basically judged as the interference of tooling. At this time, the mold shall be modified according to the size and location of the pressing injury:

(1)slight pressing injury. File the sharp Angle of the tool at the corresponding place of the tool, blunt the sharp Angle of the tool, and then use sandpaper polishing;

(2)the pressing injury is serious, but there is no welding rib at the corresponding place. Rub off the interference part of the fixture with an air abrasive rod (be careful not to touch other parts, especially the root part of the air abrasive rod, which may be rubbed off other places without being noticed). After grinding, make it smooth with whetstone and buff with sandpaper;

(3)severe crush injury. If there is welding rib in the corresponding place, or if there is serious pressing injury and the interference part is very large, please consult with the designer. Have the processing center dealing with the modified drawing and contact the relevant personnel to confirm whether there is a problem with the injection molding, or whether to improve the product structure.

2.Material overflow

If there is any overflow in the welding process of pvc membrane welding machine, do not debug or modify the welding parameters right away. First measure the size after welding, and compare it with the normal value. Adjust according to the difference.

3.Insufficient welding strength

If it is old tooling, first stick the product on the welding head, observe whether the gap between the product and the welding head is too large in the weak welding place, to determine whether the welding head is worn; if it is a new tool, please scan it with the welding head, observe its frequency, power and curve, and make sure there is no problem with the welding head.

Buy hf welding machine on hf-weld.com!

1. Putzmeister 42 meters concrete pump, Volvo chassis, 4 axle x-leg, classical 4 booms, high working stability.
2. Manufacture Date is November of the year 2005.
3. Maintenance completed new tires of the complete machine. Hopper maintenance; Finishing lubrication pipeline, circuit, and hydraulic circuit. Whole line arrangement, old pipe and line changed, pressure debugging for 8 hrs and in very excellent condition.
4. Import quality, trustworthy. No formalities and higher cost performance.
5. The first class of machine and make sure each of everything is in good condition, must zero fault when leaving the factory, reduce working pressure and cost from clients.

Only with the stable lower plate is the pump truck safe. The arm-frame pump truck supporting leg should be paid much attention.

Just like kung fu, if your "lower plate" is not strong enough, you can easily be pushed down. Whether putzmeister second hand pump trucks' legs can firmly "plunge" on the ground, is the priority of the safe operation of the arm gantry pump truck.

1. Protect yourself and others from dangerous areas

When opening or closing the leg of the gantry Putzmeister stationary concrete pump, the rotation range is a dangerous area. People may be hurt in the range. When carrying out this operation, you should be careful of yourself and the people nearby.

2. To strengthen of the overlapping location is great. The supporting legs should be extended in place.

The legs of the arm pump truck all have fixed strengthening positions. Only when the legs are opened and extended in place can these strengthening positions give full play to the strength. Otherwise, the supporting legs will be in danger of breaking. Pay attention to the arrows on the legs and ears as you extend them.

3. Communicate with construction personnel in advance and don't "step on empty"

The gantry pump truck must be supported on a solid ground. If the maximum pressure of the supporting leg is greater than the allowable pressure on the ground, the supporting plate or auxiliary square shall be used to increase the supporting surface area. In addition, communicate with the person familiar with the construction site before supporting the leg, and make sure the leg is not above the sewer.

4. Keep a safe distance to prevent ground collapse

Adequate safety distance should be set aside to prevent ground collapse when support is near a pit or ramp.

5. The arm pump truck must be leveled and must not exceed 3 degrees

After the support is completed, make sure that the maximum horizontal deflection of the gantry Putzmeister truck mounted concrete pump is no more than 3 degrees. Generally speaking, the direction of the extension of the arm frame will be raised higher during the construction process, leaving a surplus for the subsidence after the extension of the arm frame. Currently, the arm mounted pump truck is usually equipped with an electronic level and alarm device. Once the arm mounted pump truck tilts too high, the alarm will sound to remind the operator. Before extending the armrest, make sure the legs are properly attached.

6. Remote control ensures the safety. Do not be too high from the ground

Upon confirmation of all the leg under the condition of reliable and efficient, make confirmation on the leg safety with the first and second boom. The specific approach is to stretch one arm frame, making the open Angle at 90 degrees. Then let two booms in one meter off the ground. Move one arm up and down in the position of four legs, check whether the corresponding arm bracket and diagonal arm bracket are safe.

7. If water enters under the leg, the arm shall be returned for safety

In case of the occurrence of rain water, oil cylinder leakage of supporting legs and factors reducing the stability of supporting legs, the arm shelf should be closed immediately. After the problem is eliminated, the supporting legs should be put up again according to the requirements.

In addition, when supporting the arm pump truck, it is better to keep the tire off the ground by 5 cm or so. Otherwise, the swing of the s swing tube of the arm pump vehicle and the shaking of the vehicle caused by the impact of pressure in the tube will damage the vehicle driving mechanism.

According to the physical and electrical properties of optical cables, the laying of optical cables must meet certain requirements. In addition, the laying of optical cables in different environments also have their own requirements.

The laying of optical cables shall strictly comply with the following requirements:

(1) Length and integrity: The length of each cable should be controlled within 800m, and there is no relay in the middle.

(2) Minimum installation bending radius of optical cable: under static load, the minimum bending radius of optical cable is 10 times than the diameter of optical cable; under load conditions during wiring operation, such as pulling the optical cable out of the pipe, the minimum bending radius is 20 times than the diameter of optical cable; the minimum installation bending radius of four-core optical cable must be greater than 2in (5.08 cm). 

(3) Installation stress: The maximum installation stress applied to 4/6 core cable shall not exceed 100lbf (45kgf); when multiple 4/6 core cables are installed at the same time, the maximum installation stress per cable shall be reduced by 20%. For example, for 4x4 core cable, the maximum installation stress shall be 320lbf (144kgf).

Explanation: It is required that the traction force of the cable should not exceed 80% of the allowable tension of the cable, and the maximum instantaneous traction force should not exceed the allowable tension of the cable. The main traction force should be applied to the strengthened components of the cable, and the fiber can not bear the tension directly.

(4) Installation pulling force of optical fiber jumper: the maximum pulling force of single-core soft wire is 27 LBF (12.15 kgf), and the maximum pulling force of double-core soft wire is 550 LBF (22.5 kgf), and the distance of interconnection equipment should not exceed 100 ft (30 m).

(5) Judging the A.B end of optical cable: Before construction, we must first judge and determine the A.B end of optical cable. A-terminal should be oriented towards network hub
direction, while the B-terminal should be oriented to the user's side. The end of the laying cable should be in the same direction, and it must not be mistaken.

(6) No matter laying optical cables in buildings or between buildings, separate pipe holes should be occupied. If the original pipe and copper cable are used together, the plastic sub-pipe should be put through the hole. The inner diameter of the plastic sub-pipe should be 1.5 times than the outer diameter of the optical cable. The optical cable should be laid in the plastic sub-pipe, and the same sub-pipe should not be used with the copper cable. When laying optical cables are in parallel with other weak current systems in buildings, they should be laid separately and fixed, and the minimum net distance between the cables should meet the design requirements.

Shenzhen Yutai Photoelectric Communication Co., Ltd. is a professional fiber optic cable supplier, providing high-quality optical cables. Welcome to buy.

Aerospace UAV Connectors are an important basic component that is almost ubiquitous in military and aerospace aircraft & UAV applications and serve as interconnects for transmission signals and power, which has to meet stringent testing for outgassing and residual magnetism to be suitable for use in airspace & UAV applications. Outgassing and residual magnetism can adversely affect nearby components. 

Weight & space saving is necessary for Aircraft & UAV connectors because there is only so much room on a space vehicle. They have to be extremely reliable as well and they must resistant to severe environmental conditions like shock, radiation, extreme temperatures, and vibration.

Aerospace UAV Connectors are an important basic component that is almost ubiquitous in military and aerospace aircraft & UAV applications and serve as interconnects for transmission signals and power, which has to meet stringent testing for outgassing and residual magnetism to be suitable for use in airspace & UAV applications. Outgassing and residual magnetism can adversely affect nearby components. 

Weight & space saving is necessary for Aircraft & UAV connectors because there is only so much room on a space vehicle. They have to be extremely reliable as well and they must resistant to severe environmental conditions like shock, radiation, extreme temperatures, and vibration.

Now the electronic products emerge in an endless stream, with the increasingly serious homogenization of commodities, a product without innovation will gradually be banned and eliminated. So, the primary focus to attract consumers' attention is the electronic products packaging. However, the design of electronic packaging box on the market is getting more similar. Only by making different packaging with other brands, can we highlight the product and brand.

Originality is the key to design and innovation of electronic product packaging boxes, therefore, special attention should be paid to the packaging design of electronic products. As we know, text design and graphic design are the basic elements of electronic product packaging design, text is the essence of product packaging, graphic design is the soul of product packaging! As Chinese leading paper box supplier, we can do it well.

We can design the packaging of your products, also make the electronic boxes according to your requirements. Our Electronic Packaging Boxes are varied, such as cover and tray carton, clamshell box, folding box, two tuck end box and magnet box. In order to make your brand logo more distinctive, we use glossy lamination, matt lamination, UV coating, hot stamping and other surface treatments.

In our many years of work experience, we have cooperated with many well-known electronic brands, such as Google, HP, SONY, DELL and Philips etc. As Chinese leading paper box supplier, we provide cell phone box, computer box, power bank box, headphone box and laptop box etc. And for product quality, we will communicate with the customer at any time until the sample meets requirements.

Please believe that our technology and sincerity will bring you a good experience. CONTACT NOW!

The single screw oil press machine produced by Guangxin Manufacturer is suitable for squeezing oil from various kinds of vegetable seeds like the peanut, sunflower seed, sesame, rapeseed, soybean, cottonseed.

The series of screw type oil press machine combined with the electric heater has the function of automatically heating the press chamber before pressing, which saves labor and time. The heater can also keep the temperature when the machine stops.

We supply multiple choices for processing capacity from 1 ton to 20 tons per day, which can be used in rural small oil processing workshop or big oil mill factory. We can supply specific models of oil press machines according to customer’s requirements, like which kind of raw materials and the processing capacity is required. This will help the customers gain a higher working efficiency when using the machine.

Single Screw Oil Press Category:

Main features of single screw oil press machines:

1. The screw oil press machines can be widely used in all scales of oil factories, suit for squeezing over 20 kinds of seeds.
2. The screw oil press machines can be worked for continuously 24 hours.
3. The screw oil press machine has advantages of small investment, high working efficiency.
4. Easy operation and maintenance.

Working principle of Single Screw Oil Press :

Under the combined effects of several forces, such as the pressure generated as the space in the squeeze chest becoming smaller, the propulsion of the revolving spiral axes, the resistance of the multilateral arc curves on the squeeze loops, the extrusion & friction between the oil plants, oil squeezed from the oil plants comes out from the squeeze bars and the grooves of the squeeze loops. The residue is conveyed to the end of the press chest and discharges in thin strips of oil cake from the space between the cake adjuster and the loop for the cake out. Then the whole separation process of oil from oil plants is completed.

The ceramic microfiltration membrane element ( MF membrane) is made from alumina and zirconia which is an asymmetric membrane structure with multi-channel tubular shape. The pore is on the channel. Driven by operation pressure, the liquid is running in the membrane. The part less than pore size is permeation, the part lager than pore size is concentrated liquid, so as to achieve the separation, concentration and purification purposes.

JIUWU ceramic membrane manufacturer produces the ceramic microfiltration membranes with the pore size 200nm, 500nm, 1200nm and so on.  JIUWU microfiltration system made by high-quality MF membranes element will meet the requirements for your special applications. 

OVER VIEW OF MICROFILTRATION CERAMIC MEMBRANE ELEMENT

Ceramic microfiltration membrane is a type of physical filter element where a contaminated fluid is passed through a special pore-sized membrane to separate microorganisms and suspended particles from process liquid. The most common application of ceramic microfiltration membrane is clarification, or removal of suspended solids to produce a clear liquid. It is commonly used in conjunction with various other separation processes such as ultrafiltration and reverse osmosis membrane technology to provide a product stream which is free of undesired contaminants. Examples include clarification of whole cell broths; purification processes in which macromolecules must be separated from other large molecules, enzymes or cell debris; clarification of dextrose and highly colored fruit juices, wine and beer, during which fruit juice membrane and beer membrane filtration will be used; whey de-fatting and casein removal. Ceramic microfiltration membrane systems operate at relatively low pressures and come in a variety of configurations. They are characterized by pore size, ranging from 0.05 micron to 1 micron.

JIUWU company offers a large choice of ceramic microfiltration membranes with different geometries and cut-offs to meet your process requirements in viscosity, molecule size, impurity profile, purity and yield target, etc. as well as cleaning and sanitization procedures.

MF ceramic membrane usually serves as a pre-treatment for other separation processes such as ultrafiltration, and a post-treatment for granular media filtration. Learn more micro filtration technology here! 

APPLICATION OF MICROFILTRATION CERAMIC MEMBRANE ELEMENT

Remove suspended solid and reduce SS

Remove proteins, polysaccharides, pigments and other impurities

Remove bacterial

Dehydration

Concentration

Reduce COD/BOD

Membrane technology in food processing

Membrane filtration of milk

Ceramic membranes for wastewater treatment

Describe the new technology of hearing aid - Bluetooth Style

Hearing Amplifier Bluetooth technology has been launched by manufacturers 3 or 4 years ago. Due to the lack of understanding of the majority of users and the high price of relevant products, few of them are used. With the introduction of hearing aids with Bluetooth technology by various manufacturers in the past year or two, the price of hearing aids with this technology has been reduced to a level acceptable to a considerable number of customers, and the number of users has gradually increased. In the past, ordinary hearing aids did not work well when answering telephone calls, for two main reasons:

One is that the voice of the telephone needs to be transmitted through air to the microphone of the hearing aid. Because when a user makes a phone call, the receiver and the microphone of the hearing aid are always not very accurate, which causes the sound signal attenuation of the phone. Even though some hearing aids use inductance, the sound energy transmitted to the hearing aid is incomplete because the distance and the electromagnetic energy of the telephone are not enough.

Second, when making a phone call, the receiver of the phone can only be placed next to the microphone of one ear. At the same time, the microphone of the hearing aid can receive the sound made by the user around, resulting in poor signal and noise when making a phone call. For these reasons, a significant number of users are less effective at making phone calls with hearing aids, and some are even less clear than without them.

The combination of hearing aid and Bluetooth technology solves the problem well.

Hearing aids with Bluetooth technology do not require the user to move the phone's receiver to the microphone of the hearing aid. There is a wireless receiving module in the hearing aid, and a module (with Bluetooth signal reception and common wireless signal transmission functions) is added outside the hearing aid. This module is the same size as the matchbox (different brands have slightly different sizes), or it is hung on the chest or in the pocket. The main function of the module is to receive the Bluetooth signal from the end of the phone and transmit the audio information of the signal directly to the binaural hearing aid. This process has several advantages, which completely overcome the defects of the above mentioned SNR and inaccurate position. First, the sound in the telephone is transmitted wirelessly to the user's hearing aid with almost no loss, ensuring that the sound energy does not decrease.

The second is that he can direct the voice from the phone to the user's two hearing aids, so that both ears can hear the voice of the other person inside the phone; In most cases, the speech recognition rate of binaural listening is much higher than that of monaural listening. The third point is that in the Bluetooth mode and the ordinary wireless transmission process, the voice in the phone is equivalent to directly into the hearing aid, without any noise interference in the environment of the phone receiver, which greatly improves the signal-to-noise ratio. Based on the above three points, Bluetooth Style Hearing Amplifier has made a lot of changes in the effect of telephone answering, which has been praised by many users.

A functional insulator coating to protect insulators in pollution area, such as industrial area, coastal area and other extreme environmental conditions, also can be used in normal environmental conditions.

RTV-II/ PRTV is a one part and new type Room Temperature Vulcanizing RTV silicone rubber coating, also be referred to as High Voltage Insulator Coatings (HVICs) is based on extensive research and development work that lead to upgrade the RTV coating.

Our RTV-II silicone rubber coatings work on the principle of providing a hydrophobic surface limiting the leakage current to harmless levels in the presence of moisture and contamination, reduction of pollution related flashover risk and a long service life. To prevent pollution flashover, to avoid power outage and protect electrical power equipment.

The advantages of Enhanced Anti-pollution Flashover Coating RTV-II:

1. Ready-to-use without adding solvent to make thinning or excessive mixing/shanking before use. Easy to use in different conditions.
2. Excellent self-cleaning and long-term resistance to weathering and a wide variety of pollution environments.
3. Long-term hydrophobicity, Suppression of leakage current, discharges and pollution flashover.
4. Reduced maintenance expenditures and revenue losses, easy to maintain as in washing, compared to conventional insulator surfaces.
5. Facilitated cleaning in case of extreme pollution deposition (e.g. cement); even most difficult pollutants can be wiped off by cloth.
6. Strong adhesion to the insulator surface, withstand high pressure.
7. The service life is longer than normal RTV coating, at least 15 years in most service conditions. Stable operation, long-lasting performance.
8. Nontoxic and environmental friendly material.

Application Scope of RTV Silicone Coating for Insulator:

1. RTV-II is ideal Suited for use on both new & old insulators of transmission line and substation, different kind of bushings in substation. Can be used, unprimed, on a variety of insulator substrates including glass, porcelain, HTV silicone and composite insulators.
2. Further suitable as a refresh coating over old RTV coatings provided the old RTV coatings is properly cleaned and still displays strong adhesion to the insulator surface.
3. Can be used in a wide variety of pollution environments including, but not limited to, salt spray, salt fog, industrial (cement dust, fly ash, carbon black, acid emissions, etc.) and desert sand.
4. Designed for use in AC and DC systems, in substations of all voltage levels and on transmission lines under all voltage conditions ranging from low distribution voltages to very high transmission voltages, Rail way, Switchgear etc.
5. Our RTV-II Silicone Rubber Coating can effectively protect ceramic insulator, glass insulator, long rod insulator, CT, PT, bushing, circuit breaker, Hollow porcelain insulator, porcelain surge arrest, switchgear cabinet, Transformer insulator and other outdoor electrical equipment.