一般阀门零件,材料大部分是HPb59-1黄铜。用棒料加工,不但耗料多,而且生产效率低。为了节约有色金属材料,提高生产效率,降低成本,根据HPb59-1黄铜适宜热挤压加工的特性,几年来采用闭式镶块热挤压模具,在推广少无切削和节约原材料方面,收到一定的经济效果。现选择QJJ220/15型直通式截止阀的阀盖镶块热挤压 General valve parts, most of the material is HPb59-1 brass. With bar processing, not only more material, and low production efficiency. In order to save non-ferrous metal materials, improve production efficiency and reduce costs, according to HPb59-1 brass suitable for hot extrusion process characteristics, the past few years with closed insert hot extrusion die, the promotion of less no cutting and saving raw materials, received To a certain degree of economic results. Now choose QJJ220 / 15-type through-valve globe valve block insert hot extrusion