摘要
在BTMCr26基础上,通过材料成分优化、性能强化设计,并使用JX-11变质剂,成功试制出硬度54~60 HRC、抗拉强度Rm≥650 MPa、冲击韧性Ak≥8~10 J/cm2的合金材料JX。改进了大型挖泥泵叶轮的铸造工艺、热处理工艺等,将JX合金成功应用于大型挖泥泵叶轮的试制,现场运行安全可靠,其寿命是普通高铬铸铁材质零件的两倍以上。
Based on BTMCr26,the alloy JX with hardness 54-60 HRC,tensile strength Rm≥650 MPa and impact toughness Ak≥8-10 J/cm2 has been successfully manufactured by optimizing material composition,strengthening design and using JX-11 modifier.The casting technology and heat treatment technology of large-scale dredging pump impeller have been improved.JX alloy has been successfully applied to trial-manufacture of large-scale dredging pump impeller.The field operation is safe and reliable.Its service life is more than two times than that of common high chromium cast iron parts.
作者
韩凯
唐香珺
赵芳
HAN Kai;TANG Xiangjun;ZHAO Fang(Department of Vehicle and Electrical Engineering,Shijiazhuang Campus of Army Engineering University,Shijiazhuang 050000,China)
出处
《热加工工艺》
北大核心
2021年第1期66-69,共4页
Hot Working Technology
关键词
超高铬白口铸铁
JX-11变质剂
大型挖泥泵叶轮试制
ultra-high chromium white cast iron
JX-11 modifier
trial-manufacture of impeller of large dredging pump
