1) side internal crack
边内裂
2) side internal crack of casting billets
铸坯边内裂
3) cracked edge
裂边
1.
Too many existing cracked edge defects have appeared since the 1500-mm hot rolled wide strip went into operation in Laiwu Steel Group,Ltd.
莱钢1500mm热轧带钢生产线投产以来,出现了较多的裂边缺陷。
4) edge cracking
边裂
1.
Structure testing in low magnification,microscopic test,spectrum test,chemical composition test and analysis about process controlling parameters were used to study the edge cracking of J55 strip steel coil of Ji- nan Iron and Steel Group,and then the measures for avoiding edge cracking were put forward,eventually gain dra- matic outcome.
针对济钢J55热轧钢带边裂问题,通过低倍组织检验、金相和光谱分析、化学成分试验等方法,分析了生产过程控制参数,研究了热轧钢带边裂的成因,提出了改进措施,并取得了显著效果。
2.
The mechanism and cause of edge cracking defect of hot-rolled strip in Kunming Iron & Steel co.
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。
3.
The reasons and mechanism of edge cracking of austenite hot - rolled stainless strips are discussed.
对热轧奥氏体不锈带钢边裂产生的原因和形成机理进行了探讨。
5) edge crack
边裂
1.
Control and Analysis on Edge Crack of Hot Rolled Strip Coil Produced by CSP Process;
CSP工艺生产热轧板卷边裂的分析和控制
2.
Study on edge cracking and property characters of the corrosion resistant steel;
耐候钢带边裂问题及性能特性探讨
3.
In order to improve these indexes corresponding measures are put forward, mainly including reduction of edge crack of hot rolled coils and cold rolled high silicon products.
根据冷轧硅钢片成材率、板形质量和横向厚度精度现状,分析了这些指标的主要影响因素,提出了通过减少热轧卷边裂、冷轧高硅产品边裂以改善上述指标的措施。
6) edge cracks
裂边
1.
The hydrogen content and processing edge cracks was one of the important facts that effected the quality of 5005 aluminium alloy casting-rolling strips.
熔体质量和工艺裂边是影响5005合金铸轧产品质量的重要因素之一。
2.
The edge cracks of aluminum continuous cast-rolled strips result from that the cast-rolling zone is a little higher,the structure of tips is not reasonable,and the quality of cast-rolling roller is not good.
铝铸轧板坯产生严重裂边的主要原因是，铸轧区偏高、供料嘴结构不合理和铸轧辊质量不佳。
3.
The excellent aluminum casting-rolling strips mainly refer to those having good inherent organizational performance, the bright and clean surface and the free of the small edge cracks.
优质铝铸轧带材就是指具有优良的内部组织性能、光洁的表面质量以及较小裂边的带材。
补充资料：内裂
内裂
internal crack
nel}ie内裂(internal。raek)钢材内部缺陷之一，表现为在酸浸低倍试样上非因缩孔、非金属夹杂、气泡造成的不同形态的内部裂缝，是裂缝内较少或完全没有夹杂物的晶间开裂，多发生在高碳钢和高合金钢中，集中在铸锭中心处的内裂叫轴心晶间裂纹，由于不接触空气，内壁未氧化，又无偏析夹杂，热加工时采用大压缩比可能焊合。轴心晶间裂纹是由铸锭凝固时体积收缩引起的中心处受拉而产生的热裂纹。产生内裂的其他原因有:(l)钢中氢含量高，热加工后冷却时析出，又来不及扩散到表面，产生很大压力，与相变应力共同作用，而形成内裂，这种内裂称为白点。(2)锭坯装炉温度过高，升温太快。快速加热会使高速钢等导热性差的材料，因内外温差大、热应力过高而产生内裂，直至爆成碎块。(3)锭坯内外温度不均。热加工时锭坯外部温度高易变形而延伸大，内部温度低难变形而延伸小，导致内部因受拉应力过大而拉裂。材料其他部位加热温度不均、延伸不一致，也会产生裂纹。(4)高碳及高合金钢因加热温度过高而产生过热组织，晶粒粗大，晶界氧化，塑性加工时工件将沿晶界开裂。(5)塑性加工时变形速度过高，会使一些低塑性材料发生脆性破裂。(6)不锈钢、耐热钢中y相与a相同时存在，当两种相的比例不当，如a相超过30%或在相变温度以下塑性变形时，易在两相分界面上产生裂纹。(7)马氏体合金钢和高碳不锈弹簧钢，因合金元素高，等温转变C曲线显著右移，空冷时即可发生马氏体相变，形成很大内应力而产生内裂纹。热处理淬火因冷速过大，冷却不均和内应力过大易产生淬火裂纹。 (崔峰)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条