利用金相及断口显微学等方法,系统地分析和研究了造成中高碳钢丝在拉拔过程中脆断的内、外部因素,并指出显微组织不良、夹杂物及折叠等冶金缺陷是导致钢丝脆断的主要原因。 By means of metallography and fracture microscopy, the internal and external factors that cause brittle fracture of medium and high carbon steel wire during the drawing process were systematically analyzed and pointed out that metallurgical defects such as inclusions and folds caused by microstructure defects The main reason for brittle wire breakage.