镀锌卷板性能指标都有什么要求？
1、 机械性能指标
首先是
热镀锌产品的机械性能。力学性能可以定义为通过拉伸试验确定的产品性能，如屈服强度、抗拉强度、伸长率、n值、R值等。
2、 涂层性能指标
热镀锌产品最重要的性能是镀层性能，主要是指镀层的耐蚀性和附着力。耐腐蚀性包括耐盐雾性和耐潮湿性。涂层附着力是指产品在加工过程中对涂层开裂、剥落和粉化的抵抗能力。
3、 其他绩效指标
没有一个测试能与实际情况非常一致。
热镀锌产品其他重要的性能是表面质量，如汽车和家用电器的表面质量。对于汽车工业来说，钢板表面粗糙度的控制也非常重要。对于表面质量的定义，几句话还不能完全解释。最好的方法不是在不同的使用过程中直接使用它，而是先验证它。此外，也有一些解释，如对于合金产品或普通热镀锌产品，有修边和未切边。未切割带钢的边缘允许有微小的锌层裂纹和白色边缘。
1、 Mechanical performance index
The first is the mechanical properties of hot dip galvanized products. Mechanical properties can be defined as product properties that can be confirmed by tensile test, such as yield strength, tensile strength, elongation, n value, R value, etc.
2、 Coating performance index
The most important performance of hot dip galvanized products is the coating performance, mainly refers to the corrosion resistance and adhesion of the coating. Corrosion resistance includes salt spray resistance and
moisture resistance. Coating adhesion refers to the resistance of products to cracking, peeling and pulverization of coating during processing.
3、 Other performance indicators
None of the tests can be very consistent with the actual situation.
Other important properties are surface quality, such as the surface quality of automobile and household appliances. For the automotive industry, the surface roughness control of steel plate is also very important. For the definition of surface quality,
a few words can not completely explain. The best thing is not to use it directly in different use processes, but to verify it first. In addition, there are also some explanations, such as for the alloy products or ordinary hot-dip galvanized products,
there are trimming and uncut edges. The edge of uncut strip steel is allowed to have tiny zinc layer cracks and white edges.
