PDC钻头焊前焊后处理工艺的试验研究

Study on the Treatment Technology before and after Welding of PDC Bit

摘要:

PDC钻头焊前脱水方式、焊后炉中冷却初温与冷却时间等工艺参数的合理选择是提高PDC钻头焊接强度的基础。通过室内正交实验， 研究了上述工艺参数与PDC焊接面抗剪切强度的关系，确定了各工艺参数的优化值。

关键词:PDC钻头;焊接;抗剪强度;脱水方式;冷却初温;冷却时间

Abstract:

The treatment technology before and after welding of PDC bit is the main factor which affects the welding strength. Based on a series of indoor experiments, we study the relationship between welding treatment and welding strength in this paper, and obtain optimal welding treatment.

Key words:PDC Bit; welding; shear strength; dewatering method; cool start temperature; cool time