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针对目前我国大柱齿钎体的现状，对现行使用的钎钢材料进行了改进，并采用电渣熔铸工艺研制了１６０ｍｍ的大柱齿钎体；研究结果表明，采用新改进的２７Ｓｉ２Ｍｎ２Ｎｉ２ＣｒＭｏ钢，配以合理的电渣熔铸工艺，可以生产出具有良好的表面质量、高强韧配合的大柱齿钎体，经现场装机考核表明，电渣熔铸２７Ｓｉ２Ｍｎ２Ｎｉ２ＣｒＭｏ钢大柱齿钎体的使用寿命高于国内采用其他钢种和采用其他方法生产的大柱齿钎体。
In view of the current status of large columnar brazing bodies in our country, the existing brazing steel materials were improved, and the large columnar brazing body 160mm was developed by electroslag casting process. The results show that with the newly improved 27Si2Mn2Ni2CrMo steel, With a reasonable electroslag casting process, can produce a good surface quality, high toughness with a large columnar brazing body, the site installation assessment showed that the electroslag cast 27Si2Mn2Ni2CrMo steel columnar brazed body life is higher than the domestic The use of other types of steel and the use of other methods of production of large cylindrical teeth solder.