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介绍了球齿钎头的结构和材质的选择以及热嵌固齿的工艺过程和技术要点。通过试验表明,热嵌固齿工艺消除了其它固齿工艺给硬质合金和钎体带来的有害因素,是当前较理想的固齿工艺;国产低钴粗晶粒合金应用于球齿钎头是适应的;24SiMnNi2CrMoA是热嵌固齿球齿钎头抗疲劳断裂性能极好的优质材料。
The structure and material selection of ball tooth bit and the technological process and technical points of heat tooth are introduced. The experiments show that the hot embedded tooth technology eliminates the harmful factors brought by other solid tooth technology to the cemented carbide and the solder body, and is the ideal solid tooth technology at present. The domestic low cobalt coarse grain alloy is applied to the ball tooth bit Is suitable; 24SiMnNi2CrMoA is a high-quality material with excellent anti-fatigue fracture properties of heat-embedded ball and tooth bit.