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Do You Know How Does the Spiral Tube Forming Machine Cope With Low Temperature Environment?

Expansion caused by heat and contraction caused by cold will do damage to tubes. Today, I' m going to talk about how to cope with this trouble of spiral tubes in the cold regions of the north or in winter.

First of all, it is the selection of thermal insulation materials and it should be good for insulation performance. The specifications of thermal insulation materials should conform to the use of the windpipe system. It should also meet the design requirements of the tube. The insulation materials used should have certificates like qualified certificates, so as to guarantee the effective protection of the tube when used, so that it is not easy to damage when used in winter. The tube generally chooses the refractory closed hole rubber plastic sponge insulation material, and the smoke exhaust tube usually uses nonflammable aluminum foil glass cotton plate. These two kinds of materials are widely used, and the insulation performance is better.

Second, when the spiral tube is wrapped with thermal insulation material, the cutting is accurate and the cutting surface should be flat as far as possible. In this way, the bonding can be ensured. When cutting material, the horizontal-vertical surface should be overlapped with the top of the short face on the beam.

At last, when coating the spiral tube with thermal insulation material, the thickness of the glue should be uniform, and the glue can not flow when the glue is coated. When the insulation material is overlaid, it is effective to ensure that the adhesive bonding is tightly bonded. The adhesive place will not have the empty drum, and there will be no air pipes exposed to the outside tubes.

We must make full use of the spiral tube scientifically so that we can let it make a greater contribution to our life.

BLKMA is a company from China. Founded in 1994, it is located in Ma'anshan, Anhui Province, China. It is only 26 kilometers away from Nanjing Lukou International Airport. It has the developed transportation system so that our customers can visit at any time. In the pipeline processing machinery industry in China, BLKMA is the most authoritative modern enterprise, which participated in the national Chinese pipeline machinery industry standards. In recent years, it maintains a rapid growth in sales revenue and enterprise scale according to the technological innovation and the continuous development of global markets.

BLKMA Auto duct line And Spiral duct machine delievery to Australia

The order of Duct marking machine from an Australian customer was completed and shipped to Brisbane, Australia, after rigorous factory testing.

Longkou City Hongrun Packing Machinery Co., Ltd developed the egg carton production line depending on the needs of high-end pulp molded packaging.

The egg cartons are popular in the supermarket, after labeling or printing on the egg cartons, it can be used as a kind of high-grade packaging for eggs.

According to the special production requirements of egg cartons, we used high precision refiner machine to make paper pulp, which can make the quality of egg cartons better. The manual egg carton production line equipped with the manual egg carton forming machine, which can be also called reciprocating type egg carton machine. The reciprocating-type egg carton was installed with the upper and lower molds, the lower molds suck paper pulp onto its surface, then the transfer molds transfer the wet egg cartons to the collecting plates. In order to increase the production effect, we designed the rotary type lower molds, which replaced the single-face lower egg carton molds.

After the process of egg cartons forming, workers move the egg cartons for natural drying. Egg carton production line should also include the hot-press shaping machine, which is used for making the surface of the egg cartons more beautiful.

We provide the complete and reasonable production line configuration, high production standard, and best service from pre-sales to after-sales.

Through egg tray production line, we produce egg tray production. We have great egg carton manufacturing process and paper egg crate making machine, egg crate making machine and egg box making machine, we make all kinds of egg carton machine for sale.

The finished product can sometimes feature special shapes, such as deep drawing or folds at the ends, to be implemented in the production line.

Through the realization of suitable forming stations/ molds, we can complete the products without the need for later off-line processing.

Bending is a metal forming process in which a force is applied to a piece of sheet metal, causing it to bend at an angle and form the desired shape. A bending operation causes deformation along one axis, but a sequence of several different operations can be performed to create a complex part.

In press brake forming, a workpiece is positioned over the die block and the die block presses the sheet to form a shape. Usually bending has to overcome both tensile stresses and compressive stresses. When bending and forming is done, the residual stresses cause the material to spring back towards its original position, so the sheet must be over-bent to achieve the proper bend angle. The amount of spring back is dependent on the material, and the type of form. When sheet metal is bent, it stretches in length. The bend deduction is the amount the sheet metal will stretch when bent as measured from the outside edges of the bend. The bend radius refers to the inside radius. The formed bend radius is dependent upon the dies used, the material properties, and the material thickness.

Bending machines are developed for high flexibility and low setup times. Those machines are able to bend single pieces as well as small batches with the same precision and efficiency as series-produced parts in an economical way.

Advantages:

High-quality electronic components determine product performance and the reliable failure rate is low

Integrated design, high-intensity mobile track design, durable and easy to operate

Fine work quality assurance

Processing accuracy and high efficiency

Roll forming is one of the most common sheet metal forming processes to produce continuously a large variety of profiles with a constant cross-section in the longitudinal direction at high production rates. Flexible roll forming (FRF) is a new advanced variant of the roll forming process that has been developed to produce variable cross-section profiles that are commonly used in the automotive, railway, ship construction, and building industries. In the flexible roll forming production line, the rack of each roller is a separate unit, and the motor is separately controlled by the computer. The motor drives the rollers to move laterally according to the program. By adjusting the rotation angle and position of each roller, the cross-sectional shape of the cold-formed profile is changed to create the desired shape of the profile. The remarkable features of the flexible roll forming technology are mainly reflected in: the reasonable design of the geometrical section of the profile effectively improves the bearing capacity of the structure and reduces the weight of the structure. The reasonable combination of the current flexible roll forming can produce more complicated products.

The request for production batches that are increasingly smaller, with ever-broader product families, requires the use of suitable cold roll forming machine, with high technological content and highly automated. The automatic profile can change in just a few minutes by using flexible roll forming.

We propose solutions such as:

1. Double or twin shoulder machines: automatic movement of rollers, installed on two separate sections, to vary the shape of a profile in height, width and thickness
2. Revolver machine: the rotation of one or both sections of the roll former, each bearing multiple series of cantilever shafts
3. Roll former with side-by-side and transversely mobile machines

Depending on the requirements, we also provide the technologies upstream and downstream of the roll forming process, for example, decoupling and straightening, head/tail welding, coil perforation, in-line welding, cut-to-length, in-line calendering, stacking and packing systems.

Cold forming is a new technology and new technology for metal sheet forming, material saving, energy saving, and high efficiency. By using this process, not only can high-quality steel products be produced, but also the cycle of product development can be shortened and production efficiency can be improved, thereby improving the market competitiveness of enterprises.

In recent years, cold-formed steel products have been widely used as important structural parts in many fields such as construction, automobile manufacturing, shipbuilding, electronics industry, and machinery manufacturing. Its products range from ordinary rails, doors and windows and other structural parts to special profiles made for special purposes. Cold-formed steel has better cross-sectional performance per unit weight than hot-rolled steel products and has a high surface finish and dimensional accuracy. Therefore, cold-formed steel can achieve the dual effect of saving steel and saving energy instead of hot-rolled steel.

The development of curved steel has been highly valued. It is the user's constant desire for the variety, specifications, and quality of cold-formed steel products, which has led to the rapid development of cold-bending forming technology.

On cold roll forming lines the stands are fixed on the machine basement, and if you need to replace the roll forming tooling, it is necessary to manually take down the rollers from the shafts.

If the profile change only involves a size change of the section (for example a width change), the rollers can be modified by re-positioning the C shape spacers without taking the rollers down.

The core part of the cold forming machine - the roll. It is the soul of cold forming, the design of the roll is extremely important, and the design features of the roll are as follows:

1. The average force principle of each pass of the cold-bending forming machine, the average roller of the whole line is subjected to the average force, the wear is balanced, and the service life of the roll is prolonged.
2. The material of the cold roll formingmachine adopts its wear resistance, but the specific strength and hardness are contradictory. The red hardness of C12MoV should be utilized during heat treatment, and the hardness can be achieved after two or even three times of tempering after quenching.

The new technology for advanced dynamic 3D roll forming can produce profiles with asymmetrical cross-sections both in depth and width, allowing for an immense variety of shapes through a rotational and traversing movement of all the roll forming heads. In contrast to many other processes, the sheet metal is not thinned out during roll forming.

A numerical control system allows you to manage the more than 100 dynamic axes of the variable section roll formers, and the operator can freely program the machine, obtaining the requested section variations. One of the reasons that the method is so valuable for manufacturers is that machines are designed to be used with cold forming steel at very high strength levels. In fact, the higher the strength of the steel the more suitable it is for roll forming.

3D roll forming can be applied to low thickness materials (1.0mm), for the construction and automotive sector, and also to high thickness materials (up to 11.0 mm) for the transport sector (beams of lorries, trailers)

We also provide cold roll forming machine for such technologies involving:

1. Cutting rectangular blanks, checking and correcting camber
2. Shaping blanks, removing excess material
3. Roll forming with variable section
4. Calendering and piece perforation

3D roll forming technology changes your perception of profiles, by introducing an additional degree of freedom in the roll forming process.

2020 spiral pipe making machine is driven by a sprocket, and the uncoiler and the main machine are integrated. The discharge rack has an automatic turning function, and the infrared sensor switch controls the cutting length.

2020mm Spiral Duct Forming Machine Features

Slitter /plasma cutting of the tubes to the preset length and required number of pieces.

2. The cut to length is made by the patented slitter (no noise, no hot sparks created by the saw blade, no leaning of the cut edge). Modern industrial proof computer control.
3. The electric drive ensures that even by using 2.0 mm strip coil the 2020 continually produces perfect, tight spiral tubes matching or surpassing the standards of DIN, BS, Euronorm and Smacna
4. The perfect adapted options for making reinforcement beads, for the production of tendon sheet tubes or the automatic production of notches for the METU flanges, during the production process are further advantages of the tube former 2020.
5. 2020 is the only machine for the fastidious customer.

2020mm Spiral Duct Forming Machine Main Technical Parameters

MYT company has over 15 years of manufacturing and exporting experience in HVAC auto duct line,any needs in this aspect,we can provide spiral duct machine for sale,please contact us!

There are mainly two kinds of flange systems of duct connection. American standard and European standard, which is TDF flange recommended by SMACNA association and TTF/LT mate flange as well as improved GDF flange recommended by British Refrigeration Association. Comifo knows flange structure very well, and quite familiar with the standards of duct pressure test and leakage test, including SMACNA, DW144/142, GB50243-97 standards. We are one of the most professional flange machine manufacturers in China. Comifo tdf flange forming machine can satisfy different requirements in different markets.

Comifo flange machine adopts heavy duty underpan, arc welding frame, high grade motor, high precision bearing, thermal refined and grinded roll shafts. Its reliable transmission system is free of maintenance. The surface panels have been spray painted.

The air duct flange machine has independent hydraulic system and electrical control system, which has the advantages of small size, low energy consumption, high efficiency, no noise, etc. In addition, it is easy to install and unload, simple to operate, strong carrying capacity, long life, etc. The air duct flange machine must be put in a dry place, can't let the rain or other impurities into the machine, used for a period of time to add the lubricating oil, make the machine more convenient operation, want to be in a specific time to check the nut in the fuselage, because in the use process is too long will cause the nut loose, so be sure to check regularly, to ensure safety in production, in a certain time for cleaning, make the machine to enhance vitality. Because the duct flange machine needs to work all the time, if you pay attention to maintenance, the efficiency will be reduced and the life will be reduced. The followings are the precautions for the daily maintenance of the duct flange machine.

1. If it is found that there are irregular noises during operation, stop the machine immediately.
2. Test the motion after turning on the power to see if there is any jam.
3. Operate the machine according to the rules strictly.
4. Working cooperatively is required to each operator. Operation cannot start if the commands are not received.

COMIFO Group specializes in air duct machine manufacturing, contracting and selling HVAC air conditioning equipments, HVAC machinery, valve and actuators,air duct machine,ductwork machine. RFQ today!

Affordable & Quick Injection Molding Service

1. Competitive price with high quality
2. Knowledgeable and high precision
3. Stringent quality system
4. Planned delivery

Specification of Vacuum Forming Dies

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.

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