去年十二月我矿铸工车间在铸造空气压缩机风管接头时,其中有8”和10”的管子弯头(有90°和135°几种),还有8”和10”的三通管;这时大多觉得活挺多,用旧的方法办或要完时任务是不可能的,为了坚决完成任务,工人同志们积极的想办法,找窍门。首先由李伯凯同志提议做水泥模型,以后就利用它来制造坭心与砂型。结果效率提高二倍以上,原先四人干四天二火,现在六人干二天四火,质量也完全合格。现在将方法及优点介绍于下: In December last year, the mine foundry shop in casting air compressor air duct fittings, which have 8 “and 10” pipe elbow (with 90 ° and 135 ° several), as well as 8 “and 10” tee At this moment most of them feel that they are living more and more. It is impossible to do the task with the old method or to finish the task at an old age. In order to accomplish the task resolutely, the workers and comrades actively think of ways to find tricks. First, Comrade Li Pakai proposed to make a cement model and later use it to create a heart and sand mold. Results more than double the efficiency of the original four dry four days two fire, and now six dry four days fire, the quality is fully qualified. Now the methods and advantages introduced in the next: