论文部分内容阅读
高锰钢(Mn13)的生产已有一百多年的历史,它作为在强烈冲击载荷作用并承受硬磨料磨损工况条件下的理想耐磨材料,仍在矿山机械行业中获得广泛应用。高锰钢铸件经热处理=水韧处理,其目的是消除铸件中沿奥氏体晶界析出的碳化物而获得单一的奥氏体组织,使其具有很高的韧性和良好的抗磨损能力。由于高锰钢导热性能差(其导热能力仅为碳钢的1/3～1/4),铸件在水韧处理时必须缓慢加热,到淬火温度(1050～1150℃)通常要8～10小时,保温时间也较长(3～4小时),
For over 100 years, Mn13 has been widely used in the mining machinery industry as an ideal wear-resistant material under strong impact loads and under hard abrasive wear conditions. High-manganese steel castings are heat-treated with water toughening. The aim is to eliminate carbides precipitated along the austenite grain boundaries in the castings to obtain a single austenitic structure giving it high toughness and good wear resistance. Due to the poor thermal conductivity of high manganese steel (its thermal conductivity is only 1/3 ~ 1/4 of carbon steel), the casting must be slowly heated in the water toughness treatment to quenching temperature (1050 ~ 1150 ℃) usually 8 to 10 hours , Holding time is longer (3 to 4 hours)