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How to conduct quality inspection of galvanized sheet？
1. package
It is divided into two kinds of galvanized steel plate cut into a certain length and galvanized steel plate packaging with coil. General iron packaging, lined with waterproof paper, outside with iron waist tie, tie strong, to prevent the internal galvanized steel plate friction between each other.
2. Specification Model Specification
The relevant material limits (such as the following and) indicate the limit thickness, length and total width of the galvanized steel plate recommendation and the allowable problems. In addition, the total width and length of the board and the total width of the roll can also be specified according to customer requirements.
3. Surface layer
Overview: Galvanized steel plate due to the treatment of contradictions in the plating process, the overview of the situation is also contradictory, such as general zinc flowers, fine zinc flowers, flat zinc flowers, zinc flowers and phosphating treatment overview. The galvanized steel sheet and galvanized sheet coil cut to a fixed length shall not have defects that endanger the application, but the cold-rolled coil is allowed to have less abnormal parts such as electric welding positions.
4. Hot-dip galvanizing quantity
Hot-dip galvanizing quantity limit value: Measuring hot-dip galvanizing quantity is a commonly adopted way to determine the thickness of the zinc layer of galvanized steel plate. There are two kinds of double-sided hot galvanizing with the same amount (that is, equal thickness hot galvanizing) and double-sided hot galvanizing with different amounts (that is, differential thickness hot galvanizing). The quantity of hot-dip galvanized modules is g/m2.
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