无磁钻铤用高氮不锈钢TSMF166冶炼实践  

Smelting practice of TSMF166 high-nitrogen non-magnetic steel for drill collar

作　　者：张增武[1] 

机构地区：[1]山西太钢不锈钢股份有限公司炼钢二厂,山西太原030003

出　　处：《炼钢》2013年第4期19-21,40,共4页Steelmaking

摘　　要：通过无磁钻铤用高氮不锈钢TSMF166冶炼实践,开发出低碳高锰冶炼和VOD+LF组合增氮两项技术,将大部分锰合金加入时间移至VOD脱碳后,用廉价的氮气替代氮化合金,100%用氮气进行氮合金化,解决TSMF166钢冶炼中碳、锰、氮含量的控制问题,缩短K-OBM-S转炉、VOD真空精炼和LF生产周期,提高钢质纯净度,降低生产成本,彻底消除在LF加氮化锰增氮产生的巨大烟尘给环境带来的严重污染。VOD+LF组合增氮技术既经济又环保,值得在生产中高氮不锈钢上推广或借鉴。Smelting method with low carbon high manganese and nitrogen increasing through VOD and LF two techniques were developed by high nitrogen stainless steel TSMF166 smelting practice. Adjusting addition time of manganese alloy, using cheaper nitrogen instead of alloy nitride, during production of TSMF166 high-nitrogen non-magnetic steel for drill collar, control problems of carbon, nitrogen and manganese were solved. Smelting time of each procedure was shortened, such as K-OBM-S converter, VOD furnace and LF furnace. Cleanliness of steel was increased, production cost was decreased, and pollution problem because of addition of alloy nitride in LF was avoided completely. Finally, a new idea about nitrogen increasing through VOD and LF was proposed. This technique was economic and environmental, which was worthy to learned and spread in the steel industry.

关 键 词：低碳高锰钢 高氮不锈钢 增氮 冶炼 

分 类 号：TF762[冶金工程—钢铁冶金]