过去我厂是用镁锭制成的镁屑结作球墨铸铁的球化剂。后来因镁锭供应困难,就改用飞机镁制作镁屑结。但飞机镁也远远满足不了生产的需要,而且还要增加一道熔制成锭的工序。同时飞机镁的成分往往不稳定,再加上用镁屑结做球化剂烧损太多,常出现铸件球化不良现象。在这样的情况下,如何减少镁 In the past I plant is made of magnesium ingots magnesium nodules made of nodular cast iron nodulizer. Later, due to difficulties in the supply of magnesium ingots, it was converted to magnesium magnesium crumbs made of aircraft. However, magnesium is also far from meeting the needs of production aircraft, but also to increase the process of melting into the ingot. At the same time, the composition of the aircraft magnesium is often unstable, coupled with the magnesium alloy knot nodular burning too much, often castings bad ball phenomenon. In such circumstances, how to reduce magnesium