As the network main body of a car's circuit, a car harness protective cover composed of wires, connectors, rubber parts, and wrapping tape is a very important car component. As people's requirements for automotive safety, comfort, economy, and emissions increase, higher requirements have also been placed on automotive wiring harness protective sleeves, such as a wide temperature range, good elasticity, good insulation, and long life. Longer and so on, making its structure and function more and more complicated.
Because the automotive wire harness protective sleeve products have properties such as stretching, shrinking and bending after use; at the same time, in order to facilitate automobile assembly and reduce installation resistance, the product hardness is designed between Sauer A40 to 50, and the tensile strength is 10 MPa and the above. The elongation at break is between 600% and 700%. According to the principle of formula design, EPDM rubber is selected as the basic material, but it brings the problem of higher cost. The solution is: oil-filled rubber and the use of high-money non-oil-filled rubber, which not only achieves a high filling of the formula, but also plays a role in reducing costs, and at the same time improves the use of various aspects of the product processing performance.
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