在螺旋压力机上精锻在许多国家发展很迅速,已经成为主要精锻方法之一。我国对此还不够重视,特别是摩擦压力机上的精锻更是如此,其原因之一,是对于螺旋压力机的顶出装置认识不足,没有充分的利用。根据国外的报导及国内少数工厂的生产实践,表明顶出装置对于精锻技术的开展具有重要作用。 Precision forging on screw presses has developed rapidly in many countries and has become one of the major methods of precision forging. My country does not pay enough attention to this, especially the precision forging on the friction press. This is one of the reasons that the lack of understanding of the ejector device of the screw press is not fully utilized. According to foreign reports and the production practice of a few factories in China, it shows that the ejection device plays an important role in the development of precision forging technology.