1) upset crack
顶锻裂纹
1.
There're many problems in quality of steel # 45 produced by LD-LF-CC in Laigang,such as surface pores and upset cracks.
莱钢采用LD-LF-CC(方坯连铸)生产45#钢铸坯质量存在较多问题,主要是表面气孔数量多、轧材顶锻裂纹等。
2.
Through hydrogen determination online during manufacturing process,analyzing inclusions element in 20CrMnTiH by SEM and EDAX analysis,and observing defects on the surface of casting blanks,mechanism of upset cracks of 20CrMnTiH smelted by converter in Laiwu steel is found.
莱钢炼钢厂通过生产过程在线定氢,用扫描电镜和能谱分析了20CrMnTiH钢夹杂组分;观察了铸坯表面缺陷;掌握了转炉冶炼该钢顶锻裂纹产生的机理;并在生产中采取了有效的控制措施,使其顶锻裂纹得到全面改善。
2) forging crack
锻造裂纹
1.
A1N in Steel and its Affect on Forging Crack;
钢中的氮化铝及其对锻造裂纹的影响
2.
Through experiment found that the producing cause of forging cracks was oxide inclusions and composition segregation of Si、Mn element in original steel and non-suitable heating time for forging steel.
针对20CrMnTiH钢锻造裂纹问题进行实验,发现锻造裂纹的产生原因是原始材中存在氧化物夹杂,硅、锰成分偏析以及锻造加热时间控制不当等。
3) forge crack
锻造裂纹
1.
This paper describes how the conclusion has been drawn from the metallurgical analysis that cracking in the bracket of hydraulic prop stand of 160t railway crane is not the quenching cracks caused by inapt quenching but rather micro forge cracks caused by non-metallic inclusion in forging blank before the bracket being heat-treated.
本文根据160吨铁路起重机支腿液压缸托架上裂纹的金相检验情况,分析得出裂纹产生的根本原因:裂纹并非热处理不当而引起的淬火裂纹,而是热处理以前就已存在于锻件毛坯中的,由钢中非金属夹杂物引起的微小锻造裂纹,因受热处理应力作用而扩展。
4) The Analysis of Crack in Steel Forgings
钢锻件裂纹分析
5) crack tip plasticity
裂纹顶端塑性
6) cracked cylinder head top deck
裂纹缸盖顶面
补充资料:贯顶
【贯顶】
(职位)同贯首。
(职位)同贯首。
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