由于产生“折痕”进行分级的表面缺陷镀锌钢带,用户再加工时,通常导致镀锌钢带断裂。对于镀锌钢带来说,这种缺陷最具代表性。在厚度大于1mm的低碳钢轧材上最容易产生这种缺陷。个别情况下,“折痕”这种缺陷在钢带生产进程中就已表现出。但是,大多数情况下,只有在用户对钢材进 Due to the “Creased” graded surface-flawed galvanized steel strip, the rework of the user often results in the breakage of the galvanized steel strip. For galvanized steel, this defect is the most representative. In the thickness of more than 1mm mild steel rolled material most prone to such defects. In some cases, defects such as “creases” have been shown in the strip production process. However, in most cases, only when the user enters the steel