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刀具用高速铜堆焊是节约高速钢材料的一项有效措施,一般介绍能节约80％以上,除能应用于新制刀具外,并能进行旧工具的翻新,所以经济价值很大。我们对堆焊:仁作包括电焊条的制造会作了一系统试验,获得了一些经验,今将情况介绍于下。焊芯开始是用φ4～4.5公厘、长250～300公匣的高速钢,因考虑合金元素烧损关系,最好采用18钢。由于厂内没有现成的细长高速钢丝,须用圆棒料锻细。伹这一工艺很难掌握,因材料太细,室气冷硬,锻裂现
High-speed brazing of high-speed brazing tools is an effective measure to save high-speed steel materials. Generally speaking, it can save more than 80% of the total cost. In addition to being able to apply new tooling and renovating old tools, it is of great economic value. We are on the welding: Ren as the manufacture of welding electrodes will be a systematic experiment, gained some experience, the situation will be introduced below. Welding core is used φ4 ~ 4.5 mm, length 250 ~ 300 box high-speed steel, due to consider the relationship between the loss of alloying elements, the best 18 steel. Because there is no ready-made slender high-speed steel wire, rod forging fine.伹 This process is difficult to grasp, because the material is too thin, cold room hard, forging now