球墨铸铁连杆的异常组织

Abnormal Microstructure Nodular Cast Iron Con-rods.

对球墨铸铁连杆铸态和正火后的金相组织,特别是常见缺陷反白口的形成机理和影响因素作了探讨,并提出了改进意见。

This paper describes the microstructure of nodular cast iron connecting rods in as cast condition and after normalizing, especially discusses the forming mechanism and influencing factors of the reverse chilling structure which has become a commonly seen defect. Finally it puts forward some improving comments.