我厂在生产中经常遇到硬质合金刀片的焊接问题,硬质合金刀片的焊接一般都采用铜钎焊。但是,由于该刀片的润湿性不太好,及焊接时温度不易掌握。所以在焊接时常常会因操作方法掌握不当,使焊接不牢或是刀片变脆。为了解决上述问题,我们改进了焊接操作方法,具体改进如下: 将刀片放在铁墩上,用焊枪将刀片加温到深红色时可加铜焊粉,然后在刀片上钎焊较薄的一层黄铜焊料。钎焊的部位是刀片和刀杆的接触面上,一 I often encounter in the production of carbide cutting blade factory welding problems, carbide cutting blades are generally used brazing. However, due to the wettability of the blade is not very good, and the temperature is not easy to grasp welding. So often in welding due to improper operation methods, the welding is not strong or the blade becomes brittle. In order to solve the above problems, we improved the welding operation method, the specific improvements are as follows: the blade on the iron pier, the torch with the gun heated to crimson when the brazing powder can be added, and then blade brazing thinner one Layer brass solder. Brazed parts of the blade and the arbor contact surface, one