铸态球墨铸铁QT600-3柱塞泵耐磨件的生产  

Production of As-Cast Ductile Iron QT600-3 Piston Pump Wearing Pieces

作　　者：刘绍忠[1,2] 刘继常[2] 

机构地区：[1]邵阳职业技术学院,湖南邵阳422004 [2]湖南大学机械与运载工程学院,湖南长沙410082

出　　处：《铸造》2013年第2期164-166,169,共4页Foundry

摘　　要：针对CY14-1B型轴向柱塞泵用斜盘等耐磨件淬火后硬度达不到设计要求,产生"烧盘"现象,采用合金化方式生产了铸态珠光体-铁素体球墨铸铁QT600-3铸件。生产的铸件组织均匀,珠光体含量≥75%,有良好的耐磨性,抗疲劳强度高。与正火工艺相比,采用合金化工艺生产的铸态珠光体—铁素体球墨铸铁节约能源,缩短生产周期,降低生产成本,提高了CY14-1B型轴向柱塞泵的质量与工作稳定性。Aiming at the phenomenon of ＂burn disc＂ that resulted from quenching hardness ofswashplate for CY14-IB axial piston pump falling short of the design hardness requirements, the as-cast pearlite-ferrite QT600-3 ductile iron castings was produced by alloying method. The casting has uniform structure, pearlite content≥75%, good wearing resistance, and high fatigue strength. Comparing with tempering process, the as-cast pearlite-ferrite QT600-3 ductile iron castings produced by alloying method can save energy, shorten the production cycle, reduce production costs, and improve the quality and reliability of the CY14-IB-type piston pump.

关 键 词：铸态 球墨铸铁 合金化 组织 性能 

分 类 号：TG255[金属学及工艺—铸造]