铸钢材质升级为低合金钢后，传统的砂型铸造工艺在生产中暴露出了一系列问题。
When low alloy steel replaced carbon steel castings, a series of questions were uncovered in traditional sand casting process.
研究了在熔模精密铸造中过滤净化碳钢、低合金钢和高合金钢等铸钢件的过滤新技术。
A new filtration technique for purification of carbon, stainless, high speed, low and high alloy steel castings in investment casting was investigated.
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