The failure mechanism and service sttaus quo of hot piercer point in seamless steel tube were analyzed and its failure was mainly caused by piercer point collapsing nose, sticking steel and cracking.
英
美
释义
对穿无缝钢管热穿孔顶头的失效机制和使用状况进行了分析研究,认为穿孔顶头的失效形式主要表现为顶头塌鼻、粘钢、开裂。
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