Machine painting characteristics and requirements

1. Features and requirements

When choosing coatings for machine tools, it is required that the base gas has good adhesion and anti-rust properties. Baking, so the coating performance of machine tool coatings needs to be better, such as fast drying under natural conditions, easy recoating, and less toxicity. For the supporting coatings for export machine tools, it is also necessary to pass the "three-proof" test

After coating, the coating film of the machine tool should have excellent weather resistance, decoration, mechanical strength, moisture resistance and oil resistance.

2. Coatings for machine tool coating

Each installed machine tool should be selected according to the design requirements and specific supply conditions

Coatings listed in 6-1

3. Machine tool coating process

Various types of machines are designed according to the requirements of the technology, referring to the process procedures listed in Table 5-2 and Table 6-3.

Fourth, the coating points of polyurethane coatings

Polyurethane coatings are solidified and dry-operated coatings, and the quality of the coating film is closely related to the coating. In addition to the coating precautions of general coatings, some special attention should be paid to the coating, such as the surface drying before the topcoat is applied by water grinding. The problem is to prevent the pigment from sinking to the bottom when preparing the paint, and it needs to be fully stirred. In addition, the second layer of paint can be applied before the first layer is dry, so as to increase the bonding force between the two layers. etc.