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我处原有二十多台兰石厂1970～1972年生产的NB_8-600泥浆泵,其中多数泵的凡尔箱上部的螺纹(特T237×12)损坏,因缺乏必要的修复手段而报废停用,但泵的动力部分却相当完好,因此泵的修复具有很大意义。 从前修复这种泵是将损坏的螺纹镇掉,然后补焊上带有特T237×12螺纹的丝扣圈,经这样修复的泵在使用中有焊缝开裂、丝扣圈飞出的情况,很不安全。同时这种结构不便于现场修理,螺纹一经损坏,必须将整个泵头送厂大修,误事费工。为此我们对该泵进行了改
The original NB_8-600 mud pump produced by more than 20 Lanlan plants from 1970 to 1972 was damaged by screw thread (special T237 × 12) on most of the pumps, due to the lack of necessary repairing measures Use, but the pump power part is quite good, so the pump repair has great significance. Previously repaired this pump is the thread will be damaged down, and then welded on with a special T237 × 12 thread of the threaded ring, the repair of the pump in use there are cracks in the weld, threaded case flying out of the situation, Very insecure. At the same time this structure is not easy to repair on-site, once the thread is damaged, you must send the entire pump head overhaul, accidental labor. To this end we have changed the pump