磨抛中金刚石磨盘与花岗石的界面作用

Interfacial Reaction between Diamond Disk and Granite during Vertical Spindle Grinding

通过跟踪不同加工阶段的花岗石表面光泽度、微观形貌以及组分变化特征 ,研究垂直轴磨削过程中金刚石磨盘与花岗石界面的作用机制 .用光泽度仪、环境扫描电镜 (ESEM)和 X射线多晶衍射仪 (XRD) ,分别研究加工过程中花岗石表面光泽度、微观形貌和组分的变化 ;并用三明治薄膜热电偶 ,监测了磨盘与花岗石接触界面的温度变化 .结果表明 ,加工过程中磨盘与花岗石接触界面的温度 ,不足以引起花岗石表面的组分变化 .花岗石表面光泽度的高低 。

The mechanism of the interfacial reactions between diamond disk and granite during vertical spindle grinding was studied by tracking their surface glossiness, micromorphology and compositions. Glossimeter, ESEM and XRD were applied to examine surface glossincss, micromorphology and compositions of ground granite surface, and a pair of grindable foil thermocouple was applied to monitor the temperature at diamond granite interface. Experimental results showed that the temperature at diamond granite interface was not high enough to cause the change in compositions at the surface of granite. and the glossiness of stone sarface was closely associated with the relative amount of ductile flowing formed at stone surface during grinding process.