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前几年我厂在焊接刀具的制造中出现了一些质量问题,使刀具寿命短,消耗量特别大,有时甚至在刀具供应上影响了生产的正常进行。我们经分析研究认为,刀具寿命短的主要原因有以下两方面:一是刀片在刀体上焊接不牢;二是刀片有裂纹。前者刀片在刀体上焊接不牢主要是因为刀片表面有氧化皮存在,它严重地影响了焊料的润湿性。另外还有刀片与刀片槽吻合不太好。后者刀片产生裂纹主要是刀片与刀体材料的线膨胀系数不同,导致刀片
A few years ago my factory in the manufacture of welding tools there have been some quality problems, the tool life is short, particularly large consumption, and sometimes even in the supply of tools affected the normal production. Our analysis shows that the main reasons for the short tool life in the following two aspects: First, the blade body welding is not strong; second is the blade crack. The former blades in the blade body welding is not strong mainly because the blade surface oxide exists, it has seriously affected the solder wettability. In addition there is blade and blade groove is not good. The latter blade is the main crack in the blade and the body material linear expansion coefficient, resulting in blade