近年来,老设备改造取得了一定的成果,其中以采用静压技术改造磨床比较普遍,效果也比较显著,例如二四二厂、一二五厂采用液体静压和可控硅技术改造螺纹磨床,使光洁度提高二至三级;五一一厂采用液体静压和控温技术精化改造平面磨床为拉刀磨床,精度保持在2微米以内,达到国际精密拉刀磨床的精度标 In recent years, the transformation of old equipment has made some achievements, of which the use of static pressure technology to transform the grinding machine is more common, the effect is also more significant, such as 224 plants, 115 plants using hydrostatic pressure and SCR technology to transform thread grinder , To improve the finish two to three; 51 plants using hydrostatic pressure and temperature control technology to transform the surface grinder grinding broaching machine, precision maintained at 2 microns, the precision of the international precision broach grinder