前言众所周知:高锰钢铸件对浇注温度十分敏感。浇注温度稍高,铸件即形成粗晶及柱状晶组织,显著降低其机械性能和耐磨性,增加铸件因热裂而报废的倾向。同时,砂型铸件的型腔表面在没有硷性耐火涂料覆盖时,浇注温度稍高即严重烧蚀,在铸件表面形成粘砂和麻斑,影响其外观质量。因此,在保证全部铸件轮廓清晰的前提下,合适的浇注温度范围十分狭窄。这就要求在生产中,准确控制高锰钢的出 Preface As we all know: high manganese steel casting casting temperature is very sensitive. Pouring temperature is slightly higher, the formation of coarse-grained castings and columnar crystal structure, significantly reducing its mechanical properties and wear resistance, increasing the tendency of casting scrap due to thermal cracking. At the same time, the cavity surface of sand casting is not covered with alkaline refractory coating, the pouring temperature is slightly higher that is serious ablation, the formation of sticky sand and plaque on the casting surface, affecting the appearance of quality. Therefore, to ensure a clear profile of all castings under the premise of a suitable casting temperature range is very narrow. This requires that in the production, accurate control of the high manganese steel out