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上海精业机器厂今年十二月份承接了七套年产十万噸轧钢机的铣齿和机架加工任务,这种轧钢机的人字齿轮直径为2.4公尺,每只重量达12噸。开始时厂内把它放在仅有的一台160吋大滚床上加工,可是因为齿轮太重,压得滚床的花盘转不动;后来想办法用千斤顶和油泵把齿轮顶住来减轻上的压力,这样花盘是可以转动了,但加工效率很低每只齿轮要加工十天十夜才能够完成。按这样的速度,任务是无法完成的,因此厂内就发动职工搞土机床来解决铣齿的关键。第三车间的青工王建宏,是市青年社会主义建设积极分子,不久以前曾到沈阳参加第一机械
Shanghai Jingye Machinery Factory undertook seven sets of milling teeth and gantry machining tasks for 100,000 tons of rolling mills in December this year. The diameter of this type of rolling mill’s herringbone gear is 2.4 meters and each weighs 12 tons. At the beginning, it was placed on the only 160-inch roll-bending machine in the factory. However, because the gears were too heavy, the disk of the rolling bed couldn’t be moved; later, it tried to use jacks and oil pumps to hold the gears to lighten it. The pressure, so that the disk can be rotated, but the processing efficiency is very low. Each gear can be processed for ten days and ten nights. According to such speed, the task cannot be completed, so the factory launched the workers to engage in soil machine tools to solve the key to milling. Wang Jianhong, a young worker at the third workshop, is an active member of the youth socialist construction in the city. He joined the first machinery in Shenyang not long ago.