When the roof is damaged, it is necessary to check the specific conditions of the roof. Generally speaking, in the process of repairing the roof sag, it is necessary to determine whether it is necessary to dismantle the interior decoration of the roof according to the actual situation of the sag. If the depression is serious, in order to ensure the effect of depression repair, it is best to remove the whole roof, so that the depression repair technology can be effectively applied. In the process of disassembling the internal parts of the roof, it is necessary to formulate strict disassembly specifications to ensure the smooth installation of the internal parts of the roof after groove repair. If the roof is slightly depressed, tools and equipment for repairing the depression can reach the damaged part without obstacles, and the interior of the roof cannot be disassembled, which is also helpful to improve the efficiency of repairing the depression.
Second, the front door and the back door
The damage of front and rear doors is also a common problem in the process of body maintenance. The repair difficulty of the front and rear doors of the car body is very different.
(1) front door maintenance. Generally speaking, when repairing the front door, most maintenance workers mainly lower the glass before repairing it. This repair method can not only ensure the safety of automobile glass, but also facilitate the repair of automobile doors. However, when the dent repair technology is used to repair the door damage, the repair technology can be scientifically selected according to the specific situation of the dent in the car body. If the groove is located in the rib or lower edge of the door, the door interior should be removed first, and then repaired; If the concave part of the car body is the reinforcing rib of the upper half of the car door, it is necessary to remove the dust strip outside the glass first, and then use the hole of the reinforcing rib to repair the drooping part. There are some special models. In the process of repairing the embedded door, the upper and lower layers of the door must be separated before repairing.
(2) Back door maintenance. When repairing the door and back door, the repair process is relatively simple, and the repair can be completed without disassembling the back door.
Third, the engine hood repair
In the process of repairing dents in the car body, it is relatively difficult to repair the hood. In the process of maintaining the engine hood, maintenance personnel can first remove the insulation layer or scrape off the adhesive, and then drill holes in the engine hood to complete the repair of the damaged parts of the engine hood, so as to achieve the purpose of repair. However, it should be noted that maintenance personnel need to reasonably determine the punching position when stamping the hood. Generally, holes should be punched in hidden positions to prevent damage to the appearance of the car body.
Four, other parts of the repair
In addition to the dent repair of the common damaged parts mentioned above, we should also pay attention to the effective repair of other parts of the car: First, the repair process of the fender. Generally speaking, when repairing the fender, it should be removed according to the specific damaged parts. At the same time, remove the damaged part of the rear taillight. However, if the concave area is at the edge of the tire, the tire cover needs to be removed first, and then the hole opening operation and repair are carried out. If there is a dent in the upper end of the rear blade of the rear windshield, first remove the windshield trim panel and then repair it. The second is bumper repair. Unlike other parts, most models of bumpers cannot be repaired. Dent repair technology can only repair soft bumper. In the process of bumper maintenance, maintenance personnel need to use baking lamps to heat the bumper before maintenance.