真空感应炉冶炼含氮不锈钢的合金增氮工艺

特殊钢 ›› 2008, Vol. 29 ›› Issue (1): 43-44.

真空感应炉冶炼含氮不锈钢的合金增氮工艺

赵鸿燕

太原钢铁(集团)公司技术中心，太原030003

收稿日期:2007-06-26 出版日期:2008-02-01 发布日期:2022-12-14
作者简介:赵鸿燕(1970-),女,工程师,1993年包头钢铁学院毕业，特种冶金研究。

Adding Nitrogen Process by Alloy for Melting Nitrogenous Stainless Steels in Vacuum Induction Furnace

Zhao Hongyan

Technology Center, Taiyuan Iron and Steel (Group) Co, Taiyuan 030003

Received:2007-06-26 Published:2008-02-01 Online:2022-12-14

摘要/Abstract

摘要： 试验研究了200 kg真空感应炉冶炼含氮不锈钢Cr13(0.04%～0.06%N)、Cr23Ni19(0.22%～0.28% N)和Cr22Ni9(0.15%～0.19%N)时,在(0.1～0.6)×10⁵Pa氩气或氮气下加氮化铬(56.2%Cr、7.33%N)增氮工艺。结果表明,在氮气保护下加氮化合金,氮回收率为80%以上;在氩气保护下加氮化合金,氮回收率仅为10%。提高炉内氮气压力,控制合适的加入温度,加入小粒度氮化铬,氮的回收率可达100%。

关键词: 真空感应炉, 含氮不锈钢, 氮气保护, 氮化铬, 氮回收率

Abstract: The adding nitrogen processes by added nitrided ferrochrome (56. 2%Cr, 7. 33% N) with (0. 1 ~0. 6) x 10⁵ Pa argon or nitrogen atmosphere in 200 kg vacuum induction furnace for melting nitrogenous stainless steel Crl3 (0. 04% ~0.06%N), Cr23Nil9 (0. 22% 〜0.28%N) and Cr22Ni9 (0. 15% ~0. 19%N) have been tested and studied. Results showed that with added nitride alloy in nitrogen atmosphere the yield of nitrogen was more than 80% , while with added nitride alloy in argon atmosphere the yield of nitrogen only 10%. With increasing nitrogen pressure in furnace, controlling suitable adding temperature and adding smaller size nitride ferrochrome, the yield of nitrogen was up to 100%.

Key words: Vacuum Induction Furnace, Nitrogenous Stainless Steel, Nitrogen Atmosphere, Nitride Ferrochrome, Yield of Nitrogen

赵鸿燕. 真空感应炉冶炼含氮不锈钢的合金增氮工艺[J]. 特殊钢, 2008, 29(1): 43-44.

Zhao Hongyan. Adding Nitrogen Process by Alloy for Melting Nitrogenous Stainless Steels in Vacuum Induction Furnace[J]. Special Steel, 2008, 29(1): 43-44.