唐山钢厂铸造车间在去年10月接受了成批生产D型铸钢车轮的任务。由于该厂铸造车间生产过类似的轮心,所以一开始接受这任务便认为车轮的形状简单,过去比这更复杂的铸件都生产过,这些车轮做起来“当然”,也一定十分容易,何况过去对于制造齿轮和轮心又是有足够的经验的。因此,既没有经过周密的生产准备,也没有认真地进行新产品的试制工作,在10月份便开始成批地生产了。 Tangshan Iron and Steel foundry workshop in October last year accepted the mass production of D-type cast steel wheels mandate. Because of the similar wheel center made in the foundry’s foundry, the wheels were initially shaped to accept the task as simpler as the more complex castings were produced in the past. Of course, these wheels are “of course” easy to make, not to mention In the past, there was sufficient experience in manufacturing gears and wheel centers. Therefore, neither careful production preparation nor trial production of new products have been carried out carefully. Production began in batches in October.