What should be paid attention to when carrying out polishing work?


In the process of using the automatic polishing machine, sometimes due to improper operation and other reasons, it will have a certain impact on the use of the automatic polishing machine. So, what are the main impacts? The following polishing machine manufacturers will analyze:

When polishing, pay attention to the following points:

Strict selection of abrasives and grinding discs

Before polishing, check the finish carefully. Select different grinding discs and abrasives according to specific conditions such as the size of the paint scratches, the degree of damage, the thickness of the paint surface, and the wear resistance.

The water-based abrasive cannot cover the small flower marks. When grinding, try to make the grinding disc and the paint surface contact the work. When the abrasive is dried and adhered to the paint surface, spray a small amount of water on the grinding disc and then grind it.

Oil-based abrasive can cover small flower marks, and it is not easy for the abrasive to dry and adhere to the paint surface. After grinding, it needs to be degreased with degreasing water, and then it can be used for crystal plating and coating products. Otherwise, crystal plating and coating cannot be used. It adheres well to the car paint surface and can be easily washed off.

In the case of relatively large scratches on the paint surface, wool discs and coarse abrasives (4 μm) can be used; for moderate scratches, coarse sponge balls and medium abrasives (2 μm) can be used; for fine scratches, fine sponge balls and fine abrasives can be used. Abrasive (0.8μm) for polishing.

Under normal circumstances, use moderate abrasives and wool discs for grinding, and then use fine abrasives and sponge balls for grinding. "The right medicine" polishing can achieve a better effect on the paint surface.

The automatic polishing machine speed control is not good, it may throw through the paint surface

During the polishing operation, the rotation speed of the polishing machine must be strictly controlled. For skilled technicians, the paint surface of the steel plate can be controlled between 2500-4000 rpm, and the paint surface of the plastic part can not exceed 1800 rpm. For unskilled technicians, the paint surface of the steel plate should be controlled between 1500-2500 rpm, and the paint surface of the plastic part should be controlled between 1000-1200 rpm.

Otherwise, the high temperature generated by the high speed may cause damage to the paint surface, or even throw through the original paint surface, resulting in irreparable losses. The effective polishing sequence is from the inside to the outside, from the top to the bottom, and completes the work in a circle around the car.

Through the above introduction, it can be seen that improper operation will have a great impact on the automatic polishing machine. Therefore, when users use the automatic polishing machine, they must operate in accordance with the regulations, not too casual, but also pay attention to relevant precautions to ensure operation. correct.