Development of Adding Bi-Ce Free-Cutting Stainless Steel 1.4104 for Electro-hydraulic Controller

Lei Yinghua; Liu Shangtan; Zhang Jun; Zheng Zhenyu; Liao Kai

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Development of Adding Bi-Ce Free-Cutting Stainless Steel 1.4104 for Electro-hydraulic Controller

更新时间：2025-10-28

- Development of Adding Bi-Ce Free-Cutting Stainless Steel 1.4104 for Electro-hydraulic Controller
- Special Steel Vol. 43, Issue 1, Pages: 73-77(2022)
- 作者机构：
  
  1. 高品质特殊钢湖北省重点实验室,黄石,435001
  2. 黄石市产品质量监督检验所,黄石,435000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：18 October 2021，
  
  Online First：18 March 2022，
  
  Published：18 March 2022
- 稿件说明：
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Lei Yinghua, Liu Shangtan, Zhang Jun, et al. Development of Adding Bi-Ce Free-Cutting Stainless Steel 1.4104 for Electro-hydraulic Controller[J]. Special Steel, 2022, 43(1): 73-77.
DOI：

Lei Yinghua, Liu Shangtan, Zhang Jun, et al. Development of Adding Bi-Ce Free-Cutting Stainless Steel 1.4104 for Electro-hydraulic Controller[J]. Special Steel, 2022, 43(1): 73-77. DOI：

摘要

大冶特钢公司电液控制器用高端不锈钢1.4104 (/%:0.16C

1.23Mn

16.40Cr

0.41Ni

0.43Mo

0.023Ca)采用20 t电弧炉初炼、LF与VD精炼

铸1.2 t锭

径锻成材工艺生产

通过喂入Bi包芯线(Bi:0.036%)与稀土球化剂(Ce:0.054%)后该钢横向力学性能与切削性能大幅提高。与无Bi-Ce钢相比

含Bi-Ce钢夹杂物总量减少84.4%

MnS夹杂减少85.5%

夹杂物平均尺寸由4.5μm增至13.7μm

切削力平均降低70～80 N

切屑更厚

更加易断

横向断面收缩率由3%提高至17%。

Abstract

Quality stainless steel 1. 4104 ( /% ：0. 16C

1. 23Mn

16. 40Cr

0. 41Ni

0. 43Mo

0. 023Ca ) for electro-hydraulic controller has been first melted at Daye Special Steel Co Ltd by 20 t electronic arc furnace and refined in ladle furnace and vacuum degassing unit

cast 1. 2 t ingot and forged into products. The transverse mechanical properties and machinability have been enhanced significantly by feeding bismuth cored wire（Bi：0. 036% ) and adding rare earth nodulizer (Ce： 0.054% ). Comparing with that of the free Bi-Ce steel

the total number of inclusion of the containing Bi-Ce steel decreases by 84. 4% and the number of MnS inclusion decreases by 85. 5%

average size of inclusion increases from 4. 5 μm to 13. 7 μm and cut force lower by 70～80 N with thicker and more easily broken chips

the transverse reduction of area increases from 3% to 17% .

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