高锰钢铸件用水玻璃石英砂造型会产生严重的粘砂。关于粘砂,主要是由于钢水中的氧化锰与型砂中的二氧化硅产生化学反应生成低熔点的硅酸复盐而形成热化学粘砂、同时,由于硅酸复盐的熔点低能向水玻璃混合料的缝隙进行渗透作用因此亦伴随着机械粘砂。不刷涂 High manganese steel casting water glass quartz sand shape will have a serious sticky sand. The sticky sand is mainly due to the chemical reaction between the manganese oxide in the molten steel and the silica in the molding sand to form the low-melting silicate double salt to form the thermochemical sticky sand. At the same time, because the melting point of the silicic acid double salt is low, Permeation of the mix crevices is therefore accompanied by mechanical sticking sand. Not painted