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前些时候,我們接到一个任务,要加工一个Φ245×2885公厘的长軸。而我們只有Φ280×2,190公厘的料,所以要鐓长145公厘以上。我們只有一台300公斤的气錘,行程540公厘,鐓这种又粗又长的軸,冲击力肯定是不够的;而且車間里又沒有起重設备和大型加热爐,困难很多。工人同志运用集体智慧,研究出許多办法,終于一一解决了这些困难。 (1) 坯料直径很大,放在錘砧上同气錘的距离很短,因而产生了冲击力不够的現象。現在改用薄錘砧代替厚錘砧,以加大錘的行程;这样就解决了錘子冲击力不足的問题了。
Earlier, we received a mandate to machine a long axis of Φ245 × 2885 mm. And we only Φ280 × 2,190 mm material, so to upset 145 mm above. We have only one 300 kg hammer, with a stroke of 540 mm. Upsetting this thick, long shaft is not enough for an impact; and there is no lifting equipment or a large furnace in the workshop, which is a lot harder. Using collective wisdom, the workers’ comrades have worked out many solutions and finally solved these difficulties one by one. (1) the billet diameter is very big, it is very short on the hammer anvil with the gas hammer, so the impact force is not enough. Now use thin hammer anvil instead of thick hammer anvil, in order to increase the hammer’s stroke; This solves the hammer impact of the problem.