【摘要】 分析厚壁无缝管全截面整拉试样 ,在拉伸试验过程中试样的受力状态及断口情况 ,探讨了厚壁无缝管拉伸试样断头部 ,造成延伸率不合格的主要原因。更多还原

【Abstract】 At this paper , we try to find the main cause extending rate of the tension test specimen cracked at the head not to be quatitied , by the study of the cracked specimens and the state that is extended in these tests.更多还原