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Automobile expansion rivet is an important connector, and its function mainly includes the following aspects:

1. Fixed connection: The automobile expansion rivet can be used to fix and connect various parts and components of the automobile, such as body structure, interior parts, engine compartment parts, etc. Through the expansion of the expansion rivet, the connection parts are firmly fixed, and the stability and safety of the automobile parts are ensured.

2. Distributed load: the expansion rivet can bear tensile force and shear force. By distributing the load to multiple points of the connector, the load of a single connection point is reduced, and the overall bearing capacity and stability of the automobile structure are improved.

3. Compensation for material differences: In the process of automobile manufacturing, there are differences in size and thermal expansion and contraction between different materials, and expansion rivets can be used to compensate for these material differences to ensure the close combination and stability between connectors.

4. Simplified maintenance: The installation and disassembly of expansion rivets are relatively simple and quick, which is suitable for on-site maintenance and replacement of connectors, which can simplify the maintenance process and improve the maintenance efficiency.

Generally speaking, the function of automobile expansion rivet is to fix the connection, distribute the load, compensate the material difference and simplify the maintenance, and it is one of the indispensable and important connectors in automobile manufacturing and maintenance. Proper selection of expansion rivet type and installation method can ensure the firmness and stability of the connector and improve the overall structural stability and safety of the automobile.