日韩人妻无码一区二区三区久久99_日韩精品一区二区三区中文在线_无码日韩精品一区二区免费_久久久91精品国产一区二区三区_亚洲精品久久久一区黄无码_精品欧美一区二区在线观看欧美熟_精品一区二区高清免费观看_国产免费一区2区3区_国产日韩精品福利视频综合一区二区三区四区

Surface treatment (blasting) of steel prior to painting

Surface treatment (blasting) of steel prior to painting

Guangzhou paint coating steel building steel structure engineering should be installed after the acceptance carried out in steel production. Before brushing paint, should take appropriate approach will require painting parts rust, weld coating, weld spatter, grease, dust and other debris to clean up.

The base surface cleaning rust quality will directly affect the quality of the coating is good or bad. Therefore, the quality of the base surface rust grade coating process should be consistent with the provisions of the design documentation requirements. Steel quality rust CLASSIFICATION executed "before painting steel surface rust grades and rust grades" (GB8923) standard.

Oil removal method according to the material, the type of oil and other factors to determine the workpiece, usually alkaline cleaning or solvent cleaning.

French immersion tank cleaning methods, scrubbing, spray cleaning and steam method.

Guangzhou Steel member steel surface rust method can be used according to the requirements of different hand-rust, machinery rust, sand-blasting, pickling rust and other methods.