对铁水进行过滤,已被证明是改善铸件质量的有效方法。在铁水进入铸型之前将熔化在铁水中的杂质过滤掉,可提高铸件的机械性能。过去,美国铸造业普遍使用两种经高温烧制而成的过滤器:蜂窝状陶瓷型和陶瓷泡沫型。现在美国已开始使用耐火二氧化硅纱网过滤铁水,这种方法首先在原苏联和欧洲使用。 Filtration of hot metal has proven to be an effective way to improve the quality of castings. Filtering the impurities melted in the molten iron before it enters the mold improves the mechanical properties of the casting. In the past, two common high temperature fired filters were used in the foundry industry in the United States: honeycomb ceramic and ceramic foam. Now the United States has started to use the refractory silica gauze filter hot metal, this method was first used in the former Soviet Union and Europe.