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针对ＰＤＣ钻头在钻进过程中常遇到的ＰＤＣ切削具与硬质合金支柱间的钎焊断裂问题，依据真空扩散焊接具有接头强度高、耐疲劳性能强、质量稳定等特点，研制出了Ｖ－ＷＳＨ６５０型高真空扩散焊机。该机采用水管冷壁圆筒形结构、笼式加热器以及蓄能器和球头调正的加载方式，其真空抽气系统装有冷阱挡板和罗茨泵机组；可以用手动或计算机两种方式操作控制。该机具有抽气能力强、加热均匀、加压稳定，自动化程度高等特点。由该机焊接的ＰＤＣ切削具与硬质合金支柱，无论从焊接强度、组件开裂率及质量稳定性，还是在保持ＰＤＣ切削具的原有性能等方面都已取得优良结果。该机可一机多用。
According to the problems of brazing and fracture between PDC cutting tools and cemented carbide pillars which are often encountered during the drilling of PDC bits, vacuum diffusion welding has the characteristics of high joint strength, fatigue resistance and stable quality. The V- WSH650 high-vacuum diffusion welding machine. The machine adopts the cold-wall cylindrical structure of the water pipe, the cage heater, and the loading method of the accumulator and the ball head. The vacuum pumping system is equipped with the cold trap baffle and the Roots pump unit. The manual or computer Two ways of operation control. The machine has strong suction capacity, uniform heating, pressure stability, high degree of automation and so on. The PDC cutters and cemented carbide posts welded by this machine have yielded excellent results in terms of weld strength, component cracking rate and quality stability, as well as maintaining the original performance of PDC cutters. The machine can be a multi-purpose machine.