Spherical annealing structure of 45 steel used for cold rolled screw,compared with nomalizing,can improve the rolling performance,the rolling quality and the roller’s service life.
冷轧丝杆所用 45钢 ,采用球化退火组织比正火组织轧制性能好 ,轧制件质量好 ,轧辊寿命长。
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