Laser surface hardening technology is a high and new technology that has developed rapidly in recent years. Laser hardening is also called laser phase transformation hardening, which means that the iron-based alloy is exposed to laser irradiation in a solid state, so that the surface layer is rapidly heated to Austenitic In the state of integration, when the laser stops irradiating, the substrate in the cold state rapidly cools its surface and performs self-cooling quenching, so that the surface of the workpiece after laser heating is transformed from high-temperature austenite to martensite, and laser transformation hardening is realized.
　　 In order to maintain the leading position of the kaiqiu Drill pipe brand in the industry and have a stronger competitiveness, the traditional surface nitriding process has become a backward process to contain under the current national call for ecological protection. Laser quenching technology was introduced in 2013. It tried to apply the surface hardening treatment to the thread of trenchless drill pipe. Numerous experiments have been carried out from laser beam lenses, laser treatment media, and processing technology. Finally, the thread laser quenching technology has been mastered, and different The thread of pipe diameter is widely promoted by quenching process. The drill rod processed by the new thread process was fully implemented and promoted in August. After the market is used, the quality is stable and the feedback is good.
The traditional nitriding process for the surface of the drill pipe thread will produce waste residue and waste liquid during the process of heating for 3-4 hours, cooling and cleaning, which will cause environmental pollution and cause harm to the practitioners. The impact on the environment is relatively large, and laser quenching completely avoids these unfavorable factors. The laser quenching process has fast heating and cooling, and can be used directly after the surface treatment of the thread that requires small deformation. Compared with the nitriding process, the grain size of the thread surface structure after laser surface quenching is ultra-fine, the surface hardness can be increased by 5%-10%, and the wear resistance can be increased by 2-3 times.
At present, the state has increased the control and supervision of the environmental protection of production enterprises, and thoroughly curbed and abolished the unfavorable processes for environmental protection. Here, Kaiqiu Drilling Tools Co., Ltd. is based on process improvement and technological leadership, and increases the upgrading and improvement of new process equipment to create a good Environmental and technological innovation has made outstanding contributions.