Surface treatment of parts
1.it should not be scratched or scratched on the parts of machined surface.
2.The surface of machined thread is not allowed to have defects such as black leather, knock, buckle and burr.All surfaces of iron and steel parts that need to be painted must be removed from rust, oxide scale, grease, dust, dirt, salt and dirt before painting.
3.Before removing rust, remove the grease and dirt on the surface of steel parts with organic solvents, lye, emulsifier and steam.
4.The time interval between the coated surface and the primer can not be more than 6h after manual rust removal.
5,Riveted parts contact with each other, before the connection must be coated with a thickness of 30~40 micron paint. Overlapping edges are sealed with paint, putty or adhesive. It is necessary to re coat the primers due to processing or welding damage.
Key words:non-standard parts
Next aitcile:outer circle machining
