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我厂生产的大、中型空分设备,用到的弯管品种繁多。以在均采用对开式工艺制造(即将两只压成型的半成品焊成一个弯管)。近年来,我们吸取了国外同行业制造厂的先进技术,即用一块坯料,分多道压制。经过反复试压,终于在八○年四季度制出成品,并已将此项新工艺投入批量生产之中。 采用这种新工艺压制弯管,其优越性是:①每件成品节约原材料23％左右;②由
I plant the production of large and medium-sized air separation equipment, the use of a wide range of pipe. In both the use of split-type manufacturing process (that is, the two semi-finished pressure into a welded pipe into a bend). In recent years, we have learned the advanced technology of manufacturing plants in the same trade with foreign countries, that is, we use one piece of blank to suppress the multi-channel. After trial and error, the finished product was finally produced in the fourth quarter of 1980 and the new process has been put into mass production. The use of this new technology to suppress elbow, its superiority is: ① each finished product saves about 23% of raw materials; ② by