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Brief introduction of integral replacement requirements for automobile body structural parts
In the load-bearing body structure, all structural plates are welded together to form an integral frame. Structural plate is the installation matrix of car body and other parts and outer plate.

Therefore, the dimensional positioning accuracy of the replaced structural plate determines the coordination of all shapes and the accuracy of the suspension device. Before welding, don't adjust the new steel plate with gasket in a hurry.

Before welding operation, the structural plate must be positioned accurately. When repairing structural plates, when it is necessary to cut or divide the plates, the manufacturer's recommendations must be completely followed.

Extended data

The body part mainly includes hood, body, luggage compartment cover, bumper bracket, fender, front and rear doors, top cover, roof beam, coaming and side wall.

The car body includes windows, doors, cockpit, passenger compartment, engine compartment and luggage compartment. There are several types of body modeling, such as box type, fish type, ship type, streamline type and wedge type, and the structural forms are divided into single box type, hatchback type and sedan type.

Body accessories include: door lock, door hinge, glass lifter, various seals, wiper, windshield washer, sun visor, rearview mirror, handle, cigarette lighter, ashtray, etc. Modern cars are often equipped with radios and rod antennas, and some cars are also equipped with wireless phones, televisions, small stoves for heating food and small refrigerators.

Exterior decoration of car body: mainly refers to decorative strips, wheel decorative covers, signs, embossed characters, etc. Radiator masks, bumpers, headlights, rearview mirrors and other accessories are also obviously decorative.

Body interior parts: including instrument panel, ceiling, side walls, seats and other surface coverings, as well as curtains and carpets. Surface covering materials such as natural fiber or synthetic fiber textiles, artificial leather or multi-layer composite materials, and skin-attached foam plastics are widely used in automobiles. A large number of decorative materials such as fiberboard, cardboard, engineering plastic board, aluminum board, patterned rubber board and composite decorative board are used on buses.