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Painting method

A paint stripping and primer technology, applied in the field of spray painting, can solve the problems of spray paint pitting, white spots, flowing paint, etc., and achieve the effect of avoiding pitting and accelerating volatilization.

Inactive Publication Date: 2011-02-09
苏州雅泛迪铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition to pitting defects, there are also white spots in the spray paint. If you spray too much, the paint will flow.

Method used

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Embodiment Construction

[0009] The technical solution of the present invention will be described in detail below.

[0010] The painting method among the present invention comprises the following steps:

[0011] (1) Rust removal: If there are rust marks on the surface of the workpiece, use scrapers, emery cloth and steel brushes to remove them manually. base tetramine, water) cleaning, in addition, you can also use a pneumatic steel needle derusting gun. Preferably, when using this gun, it is best to select the local moat type gun head for use.

[0012] (2) If there is old paint on the surface of the workpiece, remove the paint: during operation, it is necessary to determine whether to remove the paint completely or partially according to the condition of the surface of the part. Preferably, the paint removal adopts the methods of sandblasting paint removal and paint remover paint removal. After the old paint film is removed, the surface of the parts should be cleaned with warm water. And use gaso...

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Abstract

The invention relates to a painting method. The painting method comprises the following steps of: (1) painting a primer; (2) painting a first layer of finish paint and then painting a second layer of finish paint after the first layer of finish paint is dried; and (3) painting celluloid paint, namely painting at least one layer of celluloid paint on the surface of the second layer of finish paint. The painting method is characterized in that: the first layer of finish paint is dried in a baking mode and the drying temperature is between 140 and 160 DEG C, so that the volatilization of a solvent in the first layer of finish paint is accelerated and a pockmark phenomenon can be avoided; and at the same time, the second layer of finish paint is more susceptible to adhesion by the temperatureof a dried workpiece, so that whitening and paint-flowing phenomena can be avoided. In the painting method, the first layer of finish paint is dried by a drying method, so the volatilization of the solvent is accelerated and the pockmark, whitening and paint-flowing defects are overcome successfully.

Description

technical field [0001] The invention relates to a painting method, in particular to a painting method for a wheel hub. Background technique [0002] Spray paint and spray plastic are the main ways of industrial surface decoration today. Compared with spray paint, spray paint has the advantages of good leveling, repairability, good flexibility, rich decoration, high hardness, high efficiency, and easy to overcome substrate defects. Therefore, has been more and more widely used. Usually, the method of painting is: spray primer, first topcoat, second topcoat, and transparent paint in sequence, and the first topcoat is surface-dried, that is, dried at about 70°C. [0003] However, in the process of painting, the problem of the painting environment is that due to the unclean environment, a lot of dust is mixed in it, which will cause pitting after painting. Usually, the pass rate of painting due to pitting defects is less than 10%. Preventing pitting from occurring in the proce...

Claims

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Application Information

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IPC IPC(8): B05D3/02B05D3/00B05D1/38
Inventor 王云
Owner 苏州雅泛迪铝业有限公司
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