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一钢丝缺陷名称1.裂缝、裂口、裂纹、发纹特征:都是在钢丝表面出现的纵向开裂现象。概念基本相似,只是开裂的程度不同。裂缝、裂口、裂纹一般出现在钢丝表面、发纹是极细的裂纹,有时在表面,也有时在内部。产生原因:多是由于炼钢、轧钢时钢中气体和非金属夹杂物高,钢锭或钢坯加热制度不合理,缓冷不当,表面清理不彻底等造成而残存在盘条及钢丝成品上;冷拔时也可产生应力裂纹、酸脆裂纹;冷拔压缩率过大或半成品椭园度过大,再拔制时断面上压缩率分配
A steel wire defect name 1. Cracks, rips, cracks, hairline features: are longitudinal cracks appear in the wire surface. The concept is similar, except for the degree of cracking. Cracks, rips, cracks generally appear on the wire surface, hairline is a very fine crack, sometimes on the surface, sometimes in the interior. Reasons: mostly due to steelmaking, rolling steel gas and non-metallic inclusions in the steel ingot or billet heating system is unreasonable, slow cooling improper, surface cleaning is not completely caused by remaining in the wire rod and wire products; cold When pulling can also produce stress cracks, acid-brittle crack; cold drawing compression rate is too large or semi-finished product oval degree is too large, then pull the system when the compression rate distribution