What are the production technology requirements for Automotive Wiring Harness Protection Sleeve?

Automotive Wiring Harness Protection Sleeve are mainly used in automobiles, and can also be used in industrial high-temperature steam pipes. We all know that ordinary hoses soften or melt immediately under high temperatures. But Automotive Wiring Harness Protection Sleeve do not have these problems. Because Automotive Wiring Harness Protection Sleeve have certain requirements for production technology. Today, the editor will explain to you what are the production technology requirements for Automotive Wiring Harness Protection Sleeve?

First of all, the structure of the Automotive Wiring Harness Protection Sleeve product is mainly a hose composed of four or five layers of reinforced fabric layers and silicone rubber. The material of the reinforced fabric layer is mainly aromatic polyamide fiber, which is then completely impregnated on the inner and outer surfaces of the fiber cloth. Silicone rubber compound, and the layers are evenly distributed. The thickness of its fabric layer is 0.4mm or 0.5mm, but the nominal mass is 150g/m2.
The appearance of woven sleeves is not allowed to have blistering, cracks, local unevenness and other defects. The physical and mechanical properties of the rubber material for Braided Sleeve should comply with relevant regulations. Braided Sleeve products must be able to withstand a burst pressure of 1.2Mpa. When the Braided Sleeve is placed at 250°C for 168 hours, there should be no cracks or breaks on the inner and outer surfaces. The Shore A hardness of the Braided Sleeve product should not be greater than 70 degrees. After being placed at 300°C for 168 hours, there should be no cracks or breaks on the inner and outer surfaces. After aging at 250℃×168h, the burst pressure shall not be less than 1.2Mpa.
Note that Automotive Wiring Harness Protection Sleeve products can also be used continuously at 250°C and then intermittently at 300°C. This will extend the life of your Braided Sleeve.