论文部分内容阅读
我们厂生产的6H82万能铣床,有些另件需要镶铜套。如昇降台螺母和纵横床面螺母。另件的形状如图1。过去是将钢套做成图2的形状(只是没有铁盖),内孔加工到光潔度▽▽6,然后把钢套放在铸铜炉内加热到800～900℃,再放在熔铜罐内与铜一同加热到1170℃左右。铜在钢套内注满,将钢套取出,使它自然冷却。用这种方法来镶钢套,加工后废品率占60％以上,有时甚至全部报废。
Our factory production of the 6H82 universal milling machine, some other pieces need to set the copper sleeve. Such as lifting Taiwan nuts and vertical and horizontal bed nut. Another part of the shape shown in Figure 1. In the past is the shape of the steel sleeve made of Figure 2 (but no iron cover), the hole processed to finish ▽ ▽ 6, and then the steel sleeve on a cast copper furnace heated to 800 ~ 900 ℃, and then placed in a molten copper tank Within the heating with copper to about 1170 ℃. Copper is filled in the steel sleeve and the steel sleeve is removed to allow it to cool naturally. In this way to set up steel sets, after processing scrap rate of more than 60%, and sometimes all scrapped.