各工厂中,都有一些废旧金刚石沉睡在库内,怎样发挥它们的作用?我们利用粉末冶金的方法,将废金刚石压入制成金刚笔,使废金刚石再生。具体工艺是:压制,用配好的粉末3克(10％镍粉,10％碳化钨粉,1％硬脂酸铅,余为铁粉),在模子中先压制成φ10圆饼,压制力为1000公斤,取出后,按放废金刚石一粒,然后再加配好的粉末1克,再次压制成φ10圆饼,压制力为4000公斤。 In each factory, there are some abandoned diamonds sleeping in the library, how to play their role? We use the powder metallurgy method, the waste diamond pressed into a diamond pen, the waste diamond regeneration. The specific process is: pressing, with a good powder 3 grams (10% nickel powder, 10% tungsten carbide powder, 1% lead stearate, the remainder of iron powder), in the mold first pressed into φ10 cake, pressing force 1000 kg, removed, press and put a waste diamond, and then with a good powder 1 g, again pressed into φ10 cake, pressing force of 4000 kg.