民用刀剪在加工过程中，由于磨削等原因，容易产生裂纹，引起刀剪刃口卷裂或产生缺口。
In grinding process of civil cutter, crack is easy to happen by the reason of grinding, and it causes gap.
对昆钢热轧板卷边裂缺陷机理及成因进行了研究分析，提出了相应的预防控制措施，取得了较好的效果。
The mechanism and cause of edge cracking defect of hot-rolled strip in Kunming Iron & Steel co.
出现粘接的带钢卷层在平整开卷时将产生很高的开卷阻力，并在带钢表面造成带钢撕裂或折裂，同时伴随有开卷噪音。
As the result, cracks are emerged in the steel strip, and high level of noise is caused. Various factors are contributed to the adhesion, some of which are interacted.
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