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Acceptance standards for hot-dip galvanized steel grating
Libere o tempo:
Jan 10,2024
First, appearance and color: To detect the quality of hot-dip galvanized steel grating, we should first look at the appearance and color of the product. Qualified hot-dip galvanized steel grating coating has no leakage or overplating. The appearance of the steel grating is silver white, uniform in color, and bright, without roughness, cracking, blistering, and even less with cleaning impurities and obvious contamination, or scratching of the passivation film. Any of these conditions are considered to be unqualified.
General acceptance standards for hot-dip galvanized steel grating plates:
First, appearance and color: To detect the quality of hot-dip galvanized steel grating, we should first look at the appearance and color of the product. Qualified hot-dip galvanized steel grating coating has no leakage or overplating. The appearance of the steel grating is silver white, uniform in color, and bright, without roughness, cracking, blistering, and even less with cleaning impurities and obvious contamination, or scratching of the passivation film. Any of these conditions are considered to be unqualified.
Second, size: the requirements for size are quite strict. The allowable deviation range for the length and width of steel grating is plus or minus five millimeters. In addition, the diagonal of the steel grating cannot exceed plus or minus five millimeters. If there are problems with size, the consequences can be quite serious.
Third, flatness: In terms of the flatness of hot-dip galvanized steel grating, the angle of longitudinal bending of the steel grating cannot exceed 1/200 of the length, and the transverse bending angle of the steel grating cannot be less than 1/100 of the width. In addition, the surface of the crossbar cannot exceed the surface of the bearing flat steel by one millimeter. Do not underestimate this millimeter. Once the height dimension is wrong, it will cause serious consequences.
Qualified hot-dip galvanized steel grating, which has been inspected and accepted, will not cause unnecessary trouble during installation and use, and will not incur additional costs. Therefore, it is important to purchase qualified hot-dip galvanized steel grating.
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