这种焊条主要用来堆焊高速刀具。关于具体堆焊经驗已在本刊上一期48面介紹过。堆焊高速鋼刀具最好采用φ4～5毫米高速鋼鋼絲制成的焊条。为了解决材料来源問題和节約原材料,我們利用已經报废的高速钢刀具,加钻头、鉸刀、丝錐等,鍛成φ4～5毫米的圆棒或方料作焊芯,来制造堆焊高速钢刀具用的焊条。实际应用証明:这种焊条工艺性能良好,在焊縫質量方面也能够达到規定的要求。 This electrode is mainly used to build welding high-speed tool. On the specific experience of welding has been published in this issue of a 48 surface. Surfacing high-speed steel cutting tool is best used φ4 ~ 5mm steel wire made of high-speed electrode. In order to solve the problem of material source and save raw materials, we use the already scrapped high-speed steel cutting tools, plus bit, reamer, taps, forged into φ4 ~ 5 mm round bar or square material for the welding core, to create high-speed surfacing Steel cutting tools with electrodes. Practical application shows that: This electrode has good process performance and can meet the specified requirements in terms of weld quality.