wire rolling mill

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。