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球罐是石油部一公司金属结构厂的定型产品,自1981年以来,共制造了4台,累计容量13250m~3。由于以往没有大型油压机和加热炉,球罐片靠外协加热成型,每压制一台400m~3球罐片需22000元、一台200m~3的需18000元,而且工期难以保证。从去年8月开始,金属结构厂在800t油压机上,采用点压法进行冷压成型试验,取得成功
The spherical tank is a stereotyped product of a metal structural plant of the Ministry of Petroleum. Since 1981, a total of 4 spherical tanks have been manufactured with a total capacity of 13,250m 3. In the past, there was no large-scale hydraulic press and heating furnace. The spherical tank was thermoformed by external mixing. For every 400m ~ 3 spherical tank pressed, it would cost 22,000 RMB. A 200m ~ 3 would cost 18,000 RMB, and the construction period was hard to guarantee. Since August last year, the metal structure factory in the 800t hydraulic press, using the point pressure method for cold forming test, and achieved success