Effect of Argon Gas Shielded on Burning Loss of Electroslag Remelting Valve Steel NCF3015 Aluminum and Titanium

丁磊; 贾景岩

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Effect of Argon Gas Shielded on Burning Loss of Electroslag Remelting Valve Steel NCF3015 Aluminum and Titanium

更新时间：2026-01-21

- Effect of Argon Gas Shielded on Burning Loss of Electroslag Remelting Valve Steel NCF3015 Aluminum and Titanium
- Special Steel Vol. 42, Issue 2, Pages: 52-55(2021)
- 作者机构：
  
  1. 合智熔炼装备(上海)有限公司,上海,201203
  2. 2江苏申源集团有限公司,泰州,225722
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：25 December 2020，
  
  Online First：16 April 2022，
  
  Published：16 April 2021
- 稿件说明：
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丁磊, 贾景岩. Effect of Argon Gas Shielded on Burning Loss of Electroslag Remelting Valve Steel NCF3015 Aluminum and Titanium[J]. Special Steel, 2021, 42(2): 52-55.
DOI：

丁磊, 贾景岩. Effect of Argon Gas Shielded on Burning Loss of Electroslag Remelting Valve Steel NCF3015 Aluminum and Titanium[J]. Special Steel, 2021, 42(2): 52-55. DOI：

摘要

气阀钢NCF3015 Φ280 mm×1700 mm电极（/%:0.03～0.08C

13.5～15.5Cr

30～33.5Ni

1.7～2.1Al

2.4～2.9Ti

0.65～0.80Mo

0.65～0.80Nb

0.002～0.006B）经全同轴式惰性气体保护电渣重熔成Φ340 mm0.80 t电渣锭。在使用三元预熔渣70CaF

-15Al

-15CaO以熔速为4 kg/min的全氩气保护条件下

试验了气阀钢NCF3015电渣过程中Al、Ti烧损的烧损量及Si的变化情况和脱S率

并阐述了机理。结果表明

Al相对Ti是主要的烧损元素

Al的平均烧损量为-0.071%

Ti的平均烧损量为-0.035%。从底部至顶部Al

Ti的烧损都逐渐减小

与常规电渣重熔烧损率相比

氩气保护对减小Al

Ti的烧损作用显著。Al、Ti的烧损导致重熔初期Si含量略增。该渣系有一定的脱硫效果

平均脱S率36.7%。

Abstract

Valve steel NCF3015 Φ280 mm x 1700 mm electrode (/% ： 0. 03 ~0. 08C

13.5 〜15. 5Cr

30 ~ 33.5Ni

1.7-2. 1A1

2.4 ~2.9Ti

0.65 ~0. 80Mo

0.65 ~0.80Nb

0.002 - 0.006B) is remelted into Φ340 mm 0. 80 t electroslag ingot with full coaxial inert gas shielding. Under the conditions of full argon protection with ternary premelted slag 70CaF

-15Al

-15CaO and a melting rate 4 kg/min

the amount of burning loss of Al and Ti and the change of Si and S removal rate in the process of gas valve steel NCF3015 electroslag remelting are tested

and the mechanism is explained. The results show that Al is the main burning element relative to Ti

the average burning loss of Al is -0. 071%

and

the average burning loss of Ti is -0.035% ; and the burning loss of Al and Ti gradually decreases from the bottom to the top of electroslag remelted ingot. Compared with the burning loss rate of conventional electroslag remelting

argon protection has a significant effect on reducing the burning loss of Al and Ti

The burning loss of Al and Ti causes a slight increase in Si content at the initial stage of remelting. The slag system has a certain desulfurization effect

with an average desulfurization rate of 36.7 % .

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