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大跃进以来,各种新机械和新设备越来越多,对于钢材花色品种的要求也越来越广。不久以前,北京化工机械所的高压组苦战了四个月,试制成功我国第一台绕带式高压容器。但是要大量生产,却有困难。因为这里面有七层8～10公尺的定型带钢(截面见图1),试制时对它的加工,是用铣床一段段铣出来,然后用电弧焊接成8～10公尺。这对经济和质量都不利,不能大量生产,也不
Since the Great Leap Forward, various kinds of new machinery and new equipment have been used more and more, and the demand for steel color varieties has also become wider and wider. Not long ago, the high-pressure group of Beijing Chemical Machinery Institute bitter fight for four months, trial-produced China’s first band around the pressure vessel. However, mass production has its own problems. Because there are seven stereotypes of 8 to 10 meters of steel strip (cross-section shown in Figure 1), trial processing of its processing is milling a milling machine, and then arc welding into 8 to 10 meters. This is detrimental to economy and quality and can not be mass-produced nor