7165-3821 Automotive Plug Rubber Seal For Auto Connector

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The low -voltage line beam is the blood vessels and nerves of the special vehicle electrical system. This article gives a related introduction on the process and process requirements of special vehicle low -voltage beam production processes and process. In terms of improvement of process and process, the quality control of wire beam is also introduced. In general, the production of special car low -voltage lines has a large development prospect and room for progress. It is necessary to do further discussion and research to better ensure the reliability, stability and safety of the vehicle's electrical system.

The proportion of automotive and nervous systems of automotive wires in the vehicle is very large in the vehicle. It is currently an indispensable part of automobile parts and the highest value parts. The quality of the entire vehicle has also reached about 5%. With the current advancement of automobiles, the proportion of line beams in the quality of the entire vehicle is gradually increasing. Under the major situation of automotive electricization and "carbon neutral", the weight loss of wire beams has become a top priority.

1 Application of automotive aluminum wires

Car wires have always been based on copper -conductor materials and copper twisted lines as conductors. They have low resistance, high heat conduction rate, high mechanical strength, easy processing, and mature technology. However, in recent years, the price of copper metal has continued to rise, and the cost of car wires using copper metal conductors has increased sharply. China needs to import a large amount of copper each year. The price of copper is very affected by the international market, resulting in the high cost of car wire beams.

As a metal material that is second only to copper, metal aluminum has the advantages of low density, low cost, and large reserves. Compared with copper, it has lighter quality, lower cost, and more stable market price. It can be used as a market price. The alternative of the copper guide line used by traditional car beams.

In the application of aluminum wires, the resistivity of aluminum is 27.8 and the resistivity of copper is 17.24. Because the resistivity of aluminum is greater than copper, it is necessary to meet the resistance requirements of the entire vehicle circuit by increasing the wire diameter of the aluminum wire. At the same time, because the proportion of aluminum is 2.7kg/m3, and the proportion of copper is 8.89kg/m3, even after the aluminum wire increases the corresponding cross -sectional area, it can achieve a weight loss of about 30%.

In terms of price, the current aluminum price is 18,000 yuan/ton, the price of copper is 70,000 yuan/ton, and the price of copper is still rising. Under the same alternative conditions, the aluminum wire is reduced by about 35%than the copper wire.

Therefore, in the field of car wire beams, the use of aluminum wires has a large cost and weight loss advantage to replace traditional copper guide wires. Lightweight is one of the development trends of automotive wire beams. The application of aluminum wires is conducive to lightweight.

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