Describes the quality of sheet metal processing spray detection methods: visual, touch
A consistent color and model, same batch of products have no color (color, gloss);
B-coated surface is smooth, smooth, uniform surface shall have the following shortcomings:
1, and quit back to Visco: Surface dry, actually does not dry, the surface (or easy to produce) prints, stick with fabric villi phenomenon;
2, stream hanging: the surface of the liquid flow-like processes, the top was bead-like;
3, particle: the surface was sand-like sense of touch there are still obstacles;
4, orange peel: orange peel-like appearance presents as rugged, irregular ripple;
5, missed the end: The surface permeability Green, exposing the substrate color;
6, the Commission points: the surface presents a result of shrinkage holes (pitting), also known as pinhole;
7, Flooding: The surface color shades vary, was shaped pattern;
8, wrinkling: Local accumulation of uplift, was wrinkle-like (except for wrinkle powder);
9 inclusion: coating material there are debris;
10, mechanical damage: external forces caused by scratches, scratches, wear, bumps.