The four basic processes manufactured by automobiles are stamping, welding, coating and assembly.The coating process plays an important role in the appearance of the car.What are the requirements for car paint technology and process? Heres a detailed introduction to the car paint process.
Car paint technology
The standard process of car paint includes the lines of inspection of sheet metal repair, flat (arc) surface, gap, grinding and modifying oblique, dust removal, cleaning, admission, painting primer, filling atomic ash, grinding atomic ash, special young atoms, special young atomsGray, use P280#sandpaper to thoroughly polish the old paint on the body, use pressure guns and silicon dehumidifies to remove the dust and stains on the body, stick cover paper, spray intermediate paint, polish intermediate paint, and check: Check: Check: Check: Check: Check the intermediate paint.The polishing effect can be used for micro -filling, removing dust and stains on the body, covering the body to cover the body, blowing out the dust on the body, except for the stains of the body, blowing out the dust of the body gap, sticking to the dust on the body, the face paint on the body, and the face paint on the body.Steps of spraying plain paint, spraying background paint, paint spray, dried, waxing and polishing and other steps.
Car paint process process
1. Check the flatness of sheet metal repair
First check whether the part of the painting is flat, and wipe the spray paint part without sheet metal to check whether there is a depression.
2. The part that needs to be supplemented by polishing treatment
Use a sandwicher to process the edge of the sheet metal, use sandpaper to grind the feather -like edge around the sheet metal, and then polish the old paint surface with sandpaper to expand the range of soil.
3. Clean oil and oil
After the polishing is complete, clean and polish the position and spray paint position.
4. Zhongtuo
Try to control the painted paint in a smaller range, and pay attention to the gradual position of the edges, and do not become a step -shaped.
5.
After the painting is dry and dry, apply the primer paint with sandpaper and prepare to replenish the soil.
6. Replenish the soil
Use atomic ash on the surface of the low concave place to flatten it and polish it.
7.
After selecting different polishing methods according to different surface shapes, the edge of the atomic ash transitions smoothly with the old lacquer of the original car to the flow line requirements of the original car.
8. Spray primer or scrape the eye gray
Spray the soil to spray primer or scrape the ash and flatten some small holes and coats to be damaged by the atomic ash.
9. Primer polishing
Practicing the primer or ash filling, expand the grinding range with sandpaper after flatness, enhance the adhesion of the new paint surface on the old paint film, and complete the preparation before the painting.
10. Blow water and cover
For all edge interfaces within the range of the spray paint, blow dry the water inside the side seam by compressed air and cover the part that is not sprayed.
Car paint technology requirements
Former car maintenance units in my country, the repair and coating of the surface paint on the body mostly used bicycle handicraft operations.In order to ensure the quality of the paint on the body, the car paint coating room equipment is generally applied.There are many manufacturers produced by many manufacturers, including large, medium and small models. Large size can be suitable for group large passenger cars. Medium -sized can be suitable for China -Pakistan station wagon. Small applications are suitable for cars. When there are no small equipment, large and medium -sizedUse. The heating method of spraying paint room has two types: electric heating method and diesel heating method. Generally, the electric heating method is more convenient, the price is higher, and it must be increased.Some of the diesel heating methods use imported combustion machines, and the thermal efficiency is relatively high. Pay attention to safety.Regardless of the type, it is necessary to heat the paint room in advance before use.If you can operate several cars in a row, you can save costs.
Spray paint paint rooms have requirements for air purification rates. Therefore, air filtration materials should be used. Generally, high -efficiency non -woven filter cloth should be used. For a long time, it should be replaced when the pollution is serious.
There are also requirements for the lighting and baking equipment of the spray paint room room. The light is bright and soft, and the service life is long to see the surface of the body to ensure the quality of the paint.The electronic control system is used to perform program control to enable the spray paint paint process to perform program control to ensure that the equipment is convenient, stable and reliable, and can achieve satisfactory effect on the paint repair of the car.

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