高碳铬轴承钢在冷拉时,一般要进行退火处理,山阳特殊钢公司研究了球化退火组织和减面率对高碳铬轴承钢性能的影响。试验材采用SUJ_2线材,轧制后球化退火调整球化组织,采用SEM测定单位面积的碳化物,为研究减面率对性能影响。现定球化退火组织一定,使减面率0～43％变化,经处理钢丝取样进行抗拉和冷镦粗试验。其结果在改变球化组 High-carbon chromium bearing steel in the cold-pull, the general annealing, Sanyo Special Steel Company studied the ball annealing organization and the reduction of the rate of high carbon chromium bearing steel performance. The SUJ_2 wire was used as the test material, and the spheroidizing annealing was used to adjust the spheroidizing structure after rolling. The carbide content per unit area was determined by SEM. Now set the ball annealing organization must reduce the rate of 0 to 43% change, the treated steel wire samples for tensile and cold upsetting test. The result is changing the ball group