Analysis on Internal Cracks in Fe-Cr-Al Alloy Electroslag Remelting Ingot and Improved Process Measure

白李国; 李京社; 杨树峰; 李刚; 杨宏博

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Analysis on Internal Cracks in Fe-Cr-Al Alloy Electroslag Remelting Ingot and Improved Process Measure

更新时间：2026-01-21

- Analysis on Internal Cracks in Fe-Cr-Al Alloy Electroslag Remelting Ingot and Improved Process Measure
- Special Steel Vol. 35, Issue 1, Pages: 40-42(2014)
- 作者机构：
  
  1. 北京科技大学冶金与生态工程学院,北京,100083
  2. 北京首钢吉安泰新材料有限公司,北京,102200
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：05 September 2013，
  
  Online First：06 September 2022，
  
  Published：06 September 2014
- 稿件说明：
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白李国, 李京社, 杨树峰, et al. Analysis on Internal Cracks in Fe-Cr-Al Alloy Electroslag Remelting Ingot and Improved Process Measure[J]. Special Steel, 2014, 35(1): 40-42.
DOI：

白李国, 李京社, 杨树峰, et al. Analysis on Internal Cracks in Fe-Cr-Al Alloy Electroslag Remelting Ingot and Improved Process Measure[J]. Special Steel, 2014, 35(1): 40-42. DOI：

摘要

通过工业试验研究了铁铬铝合金(/%:0.024C

0.26Si

0.17Mn

20.1Cr

5.3Al

0.05RE)200 kg电渣重熔结晶器的结构、冷却强度、电压电流、缓冷方式等对内裂纹的影响。结果表明

通过将原结晶器底水箱改为间接水冷装置

提高进水量

将电流、电压分别由原来的5 400 A和55 V降至5 000 A和50 V以降低熔池温度

采用膨胀珍珠岩覆盖剂保温均热等措施

使电渣锭低倍组织致密均匀

无内裂纹。

Abstract

The effect of structure of electroslag remelting (ESR) mold

cooling intensity t voltage

current and slow- cooling method on internal cracks of 200 kg ESR ingot of Fe-Cr-Al alloy (/%: 0. 024C

0. 26Si

0. 17Mn

20.1Cr

5. 3Al

0. 05RE) has been studied by pilot-scale production. Results show that with the measures including modifying original mold bottom water box to indirect water-cooling unit

increasing inlet water rate

decreasing voltage and current respectively from original 5 400 A and 55 V to 5 000 A and 50 V to lower bath temperature

and using expanding perlite shielding material for holding and soaking

the macrostructure of ESR ingot is compact and uniform

and there are no internal cracks.

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