For real stainless steel, we should have a more comprehensive understanding, is not only a material and shape, to know its quality stand or fall more.
HuiTai below for you to share about the test of stainless steel several ways:
Surface quality inspection is mainly on the material, appearance, shape, surface defect inspection, mainly include:
Ovality: round section of metal material, different directions on the same cross section diameter range of phenomena. Ovality with the same cross section diameter difference between maximum and minimum of said materials different criteria for different purposes.
2. The bending, bending, bending is rolled material. In the length or width is not flat, is in the shape of the curve. If put in their degree of uneven Numbers, is called bending.
3. The reverse: strip rolling material along the longitudinal axis twisted into a helix.
4. Rocker (lateral bending) : refers to the metal plate, belt and close to the rectangular section bar section along the length of the narrow (surface) side bending, angled a concave curve, the other side are angled to the convex curve, known as the “rocker.” Said to recess height.
5. Ladle curvature: refers to the board or the length and width of wave phenomena of ups and downs in at the same time, form a gourd ladle curvy, called gourd ladle curvature. Said ladle degree of curvature numerical called gourd ladle.
6. Surface crack: refers to the metal object surface crack.