自保护硬面药芯焊丝药芯成分对焊接飞溅的影响

Effect of Flux Composition of Self-shielded Hardfacing Flux-cored Wire on Spatter

摘要: 用正交试验法探讨了自保护硬面药芯焊丝药芯粉中金红石、氟化物、硅灰石、氧化锆和镁砂对焊接飞溅的影响,对含氮自保护硬面药芯焊丝药芯粉的最佳配比进行了优化.结果表明：随着药芯中氟化物、氧化锆含量的增加,焊接飞溅增大:随着药芯中金红石、硅灰石和镁砂含量增加,焊接飞溅减少:当金红石、氟化物、氧化锆、镁砂和硅灰石质量分数分别为8.0%,4.0%,4.0%,50%和2.0%时,含氮自保护硬面药芯焊丝焊接工艺性能最佳.

Abstract: Effects of flux compositions of self-shield hardfacing flux-cored wire such as rutile,fluoride,wollastonite,zircite and magnesia on spatter were studied by orthogonal experimental design,an optimal mixture ratio of varied flux powders for nitride alloyed self-shield hardfacing flux-cored wire was got.With increasing contents of fluoride and zircite in the flux,the spatter increase.But with increasing contents of rutile,wollastonite and magnesia,the spatter decrease.When the flux contained 8.0%of rutile,4.0% of fluoride,4.0% of zircite,50% of magnesi and 2.0% of wollastonite,the welding process properties are optimal.