珩磨加工是一种非常有效的内孔加工方法,利用普通车床进行大长度深孔加工,通过采用有效可行的工艺方法措施和特殊的珩磨工具,保证了尺寸精度与表面粗糙度的要求,达到了良好的效果。

The old method to calibrate magnetic depth mark of logging cable,which is based on data of depth coder of wellhead wheel,has got some errors caused by abrasion,slide of the cable/wheel,and cable stretch.Whereas in a new method,the locations of every magnetic depth marks spacing 25 m are corrected one by one based on the depths of case collar locations in a depth standard well,then are marked magnetically at these locations.Analyzed are disadvantages and their causes of the old method,as well as advantages and implementation of the new method.A SBD-1 cable magnetic depth marker based on the new method has been developed,it solved problems of depth error accumulation and nonuniform mark spacing.

介绍了一种使用普通车床驱动的自动抛光装置,作为工具可以在刀架上快速装拆使用。文中详细阐述了该抛光装置的结构和工作原理。