论文部分内容阅读
我厂模锻汽轮机叶片和柴油机零件,由于种类较多、形状复杂,一般都要经过自由锻制坯,再在1000吨摩擦压力机上终锻成形。自由锻制出的毛坯形状不能完全达到要求,因此锻件上经常产生摺叠、夹缝和充不满等缺陷,造成锻件报废;并且,毛坯在重新加热时产生的氧化皮很难完全清除,所以模锻后锻件表面质量较差。针对上述这些问题,我们试用在摩擦压力机上多膛模锻,以提高劳动生产率,改善锻件质量。根据摩擦压力机的特点,我们曾造
Our factory forging turbine blades and diesel engine parts, due to more types, complex shapes, generally have to go through the free forging billet, and then on the 1000-ton friction press final forging. Freeform shape can not fully meet the requirements of the blank, forgings often produce folding, cramping and dissatisfaction and other defects, resulting in forgings scrapped; and blank in the reheating of the oxide scale is difficult to completely remove, so forging After forging surface quality is poor. In response to these problems, we try to multi-die forging on the friction press to improve labor productivity and improve the quality of forgings. According to the characteristics of friction presses, we have made