摘要:DC51D+AZ热镀铝锌薄板弯曲成形时出现了弯曲折痕缺陷,对正常产品和缺陷产品的化学成分、组织和性能进行对比分析以找出缺陷产生的原因。结果表明:较低温度的终轧、卷取工艺导致薄板晶粒细化、硬度增高、屈服伸长率增大、塑性变形的稳定性变差是导致产生弯曲折痕缺陷的主要原因。建议钢板生产厂家生产DC51D+AZ热镀铝锌薄板时应采用较高温度的终轧、卷取工艺和充分的退火。
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