论文部分内容阅读
瑞士Contubind S.A.公司的A.H.Calmes于1957年发明了对多边形坯料压力穿孔的新方法,并手1958年开始最初试验以来进行了一系列试验,直到1968年来又进行了较大规模的工业试验随后投入了试生产。试验结果和生产经验充分表明,这种压力穿孔的新方法比二辊穿孔和三辊穿孔具有更大的优越性和较高的经济性(见表1)。
AHCalmes of Contubind SA of Switzerland invented a new method of pressure piercing of polygonal blanks in 1957 and conducted a series of tests since the initial test was started in 1958 until a further large-scale industrial test was conducted in 1968, Trial production. The test results and production experience show that this new method of pressure perforation has more advantages and higher economy than two-roll perforation and three-roll perforation (Table 1).