摘要
总结了ADI铸件质量和热处理工艺的控制措施,介绍了ADI链轮的生产条件和工艺方法。采用CAD/CAM制作高强度铸件金属模型,碱性酚醛树脂砂造型,稳定生产出性能要求Rm≥1400MPa、A≥2%、硬度45±2HRC,基体组织完全淬透为残余奥氏体+贝氏体的ADI链轮。解剖后的铸件内部致密,无气孔、夹渣、缩松等铸造缺陷;铸件的尺寸精度、表面粗糙度符合图纸要求。
The control measures of ADI casting quality and its heat treating process was summarized, and the production condition and process of the ADI chain gear was introduced. By using CAD/CAM software to manufacture metal patterns, using alkaline phenol resin sand for molding, the quality of ADI chain gears stably reached a high level： mechanical properties were as Rm ≥ 1 400 MPa, A ≥2%, hardness 45 ±2 HRC, matrix structure was of remained austenite＋bainite. Dissected casting showed a dense internal structure, no blowhole, no dross or shrinkage porosity. Both the dimension accuracy and surface roughness of the casting met requirements of drawing.
出处
《现代铸铁》
CAS
2008年第6期62-65,共4页
Modern Cast Iron
