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How to make braided silicone hose

时间:2021-08-12浏览次数:394

What processes are needed to manufacture braided silicone hose? The first step in the manufacturing process of braided silicone hose is to extrude the inner tube. Usually, when extruding the inner tube, we ask the customer to try to achieve the wall thickness between 1~2mm. Because if the wall thickness of the inner tube is too thin, there will be no support, and the softness will easily fall when braiding the fiber line, resulting in the failure of weaving. We can also customize the inner tube, which can be made into high-temperature resistant, colored, flame-retardant, etc., and can be used in special areas. For example, the inner tube is black, the outer tube is transparent, the inner tube is made of high-temperature resistant rubber, and the outer tube is made of ordinary high transparent rubber. The consumption process of braided silicone tube inner tube can meet the application of various industries.


After extruding the inner tube, we need to braid the fiber line. The conventional braided silicone hose can reach the compression resistance of more than 12~38 kg, but some customized customers do not need compression resistance. They usually need to withstand negative pressure or ultra-high pressure. At this time, the fiber line can not meet the customer's requirements. We usually use high-strength braids such as nylon fishing line. After changing the braids, the compression resistance or negative pressure resistance of the products can be enhanced, It should be noted that the steel wire silicone hose cannot stop weaving. Pull the inner tube through the braiding machine and pass through the braiding net composed of several braiding machine heads. At this time, the braiding net will wrap the inner tube (the braiding machine head will be programmed and will be braided according to the fixed road, so the silicone thread seen will stop weaving regularly rather than randomly). All conventional braided silicone hoses must be stopped with the braiding machine, so this link is the most important link in all processes. And the selected woven fabric needs to be resistant to high temperature. Because the vulcanization process of silica gel stops at high temperature, and the head of the knitting machine must be installed. Because there are many heads, not only one head, but also any problem will lead to the occurrence of product knitting disorder.


The last step after the manufacturing of the inner tube and braided wire is to stop extruding the outer tube. This link seems simple and practical, and it is also very troublesome. It needs to be noted that when the inner tube is wrapped with fiber thread passing through the extruder, there will be an appearance of internal space, which will carry a small amount of air. At this time, if the silicone outer tube is extruded, there will be bubbles, causing the outer tube to be uneven.


Solution: the outer tube wall thickness can be properly thickened a little. When the silicone outer tube is extruded, the material weight of the outer tube will shrink properly and tighter. Forcing the internal air out to the outside can reduce the occurrence of such problems. Another reason is that the increase of the outer tube wall thickness will stop the landfilling of the originally uneven outer wall, so that the uneven appearance of the woven silicone tube can be handled, Extruding the outer tube is also the last step in the manufacturing process of braided silicone tube, which also marks the end.


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