What processes are required to make PET Velcro Braided Sleeve?

The first step in the production process of Pet Velcro Braided Sleeve is to extrude the inner tube. Usually, when extruding the inner tube, we ask the customer to make the wall thickness between 1~2mm as much as possible, because if the inner tube wall thickness is too thin, it will As a result, there is no supporting force, and the softness will easily fall off when weaving the fiber thread, resulting in the failure of weaving. We can also customize the inner tube, which can be made of high temperature resistance, color, flame retardant, etc., for use in special fields. For example, the inner tube is black and the outer tube is transparent, and the inner tube is made of high temperature resistant glue. The outer tube is ordinary high transparent glue All are possible. The production process of the PET Velcro Braided Sleeve inner tube can meet the needs of various industries.

After the inner tube is extruded, it is necessary to weave the fiber thread. The conventional PET Velcro Braided Sleeve can achieve a pressure resistance of more than 12~38 kg, but some customized customers do not need to withstand pressure. They usually need to withstand negative pressure or ultra-high pressure. High pressure. At this time, the fiber line cannot meet the customer's requirements. We usually use high-strength braids such as nylon fishing lines. Tubes cannot be braided. The inner tube is drawn by the braiding machine through the braided net tube composed of several braided heads, and the braided net tube will wrap the inner tube at this time (the braided machine head will be programmed to weave according to a fixed route, so you can see Silicone threads are woven regularly rather than randomly), all conventional PET Velcro knitting sleeves must be carried out with the knitting machine, so this link is the most important link in all processes. And the selected braid needs to be resistant to high temperature, because the silicone vulcanization process is carried out at high temperature, and the head of the knitting machine must be installed, because there are many heads, not just one head, as long as any one of them Any problem will lead to product weaving chaos.
The last step after the inner tube and Cable Sleeve is finished is to extrude the outer tube. This link looks simple but is actually very troublesome. It should be noted that when the inner tube is wrapped with fiber threads and passes through the extruder, there will be an internal space. The appearance of the silicone will carry a small amount of air. At this time, if the silicone outer tube is squeezed out, bubbles will appear and the outer tube will be uneven.
Solution: It is possible to make the wall thickness of the outer tube a little thicker. When the silicone outer tube is extruded, the material weight of the outer tube will shrink and become tighter. Forcibly extruding the internal air to the outside can alleviate such problems. Another reason is that the increase in the wall thickness of the outer tube will landfill the original uneven outer wall, so that the uneven surface of the PET Velcro Braided Sleeve can be solved. Extruding the outer tube is also the production of the PET Velcro Braided Sleeve. The final step in the process also marks closure.