Application of Laser Heat Treatment Process on the Surface Treatment of Pipe Threaded

Abstract

The oil pipe is the special pipe of oil wells that is put into the wells to produce fluid or inject liquid. Because the pipe was put under the ground deeply, the higher strength and sealing are request. Therefore, the accuracy and strength of the connecting thread are required. Moreover, because of the oil wells need to be repaired frequently when they work, the shackle times are the important factor of the production life of the oil pipe. The development of the oil pipe is always blocked by the phenomenon of oil's gluing. As the remarkable feature of the Laser heat treatment process technology and the increasing of productions of the domestic laser devices, the laser heat treatment process technology was applied to the surface of the oil threaded to improve the integrated mechanical properties of oil pipe products and to extend its work life.