Applied Research on High Nitrogen Stainless Steel Smelting by Bottom-Blowing Nitrogen

赵定国; 王书桓

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Applied Research on High Nitrogen Stainless Steel Smelting by Bottom-Blowing Nitrogen

更新时间：2026-01-21

- Applied Research on High Nitrogen Stainless Steel Smelting by Bottom-Blowing Nitrogen
- Special Steel Vol. 33, Issue 5, Pages: 15-18(2012)
- 作者机构：
  
  河北联合大学冶金与能源学院教育部现代冶金技术重点实验室,唐山,063009
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：27 March 2012，
  
  Online First：09 October 2022，
  
  Published：09 October 2012
- 稿件说明：
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赵定国, 王书桓. Applied Research on High Nitrogen Stainless Steel Smelting by Bottom-Blowing Nitrogen[J]. Special Steel, 2012, 33(5): 15-18.
DOI：

赵定国, 王书桓. Applied Research on High Nitrogen Stainless Steel Smelting by Bottom-Blowing Nitrogen[J]. Special Steel, 2012, 33(5): 15-18. DOI：

摘要

根据对高氮不锈钢冶炼设备和工艺、氮气在高温高压下溶入钢液中的方式和特点

以及底吹增氮的优势的分析

在实验室通过300 g钢水底吹异型坩埚在0.5～1.5 MPa

氮气底吹流量0.14～0.24 m~3/h

1820～1910 K下对高氮不锈钢Cr18Mn18N(/%:0.17C、18.00Cr、18.09Mn、0.25Si、0.010S、0.020P、1.07N)进行增氮试验。结果表明

在1.5 MPa、1890 K

0.15 m~3/h底吹氮气流量下

当底吹时间20～30 min氮含量趋于饱和

可快速冶炼出氮含量≥1.0%高氮不锈钢

具有良好的工艺效果。

Abstract

Based on the analysis on the smelting units and processes for high nitrogen stainless steel

the mode and character of nitrogen dissolving into liquid at high temperature-high pressure and the advantage of adding nitrogen by bottom-blowing nitrogen

in laboratory the adding nitrogen test for high nitrogen stainless steel Crl8Mnl8N (/% : 0. 17C

18. 00Cr

18. 09Mn

0. 25Si

0. 010S

0. 020P

1. 07N) is carried out by a 300g liquid bottom-blowing shaped crucible with 0. 5 -1.5 MPa

nitrogen bottom-blowing rate 0. 14 ~0. 24 m

/h at 1 820 ~ 1 910 K. Results show that with 1. 5 MPa and nitrogen bottom-blowing rate 0. 15 m

/h at 1 890 K

as bottom-blowing for 20 ~30 min

the nitrogen content in liquid tends to saturation

it is available to quick-smelt high nitrogen stainless steel in which the nitrogen content is more than 1. 0%. The bottom-blowing technology has nice process effect

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