马氏体耐热钢大型管坯加热工艺模拟

doi:10.13251/j.issn.0254-6051.2022.04.036

金属热处理 ›› 2022, Vol. 47 ›› Issue (4): 208-212.DOI: 10.13251/j.issn.0254-6051.2022.04.036

马氏体耐热钢大型管坯加热工艺模拟

赵欣^1,2, 陈正宗¹, 赵海平²

1.钢铁研究总院有限公司特殊钢研究院, 北京 100081;
2.宝武特种冶金有限公司, 上海 200940

收稿日期:2022-01-09 修回日期:2022-02-11 出版日期:2022-04-25 发布日期:2022-05-19
作者简介:赵欣(1981—),男,高级工程师,主要研究方向为材料研发,E-mail:080433@baosteel.com
基金资助:
国家重点研发计划(2017YFB0305202)

Simulation of heating process for martensitic heat resistant steel G115 heavy pipe blanks

Zhao Xin^1,2, Chen Zhengzong¹, Zhao Haiping²

1. Research Institute of Special Steels, China Iron and Steel Research Institute Co., Ltd., Beijing 100081, China;
2. Baowu Special Metallurgical Co., Ltd., Shanghai 200940, China

Received:2022-01-09 Revised:2022-02-11 Online:2022-04-25 Published:2022-05-19

摘要/Abstract

摘要： 为优化马氏体耐热钢G115大型管坯的加热制度,通过有限元模拟,分析了加热工艺对钢锭温度场分布的影响。结果表明,升温过程中钢锭端部截面边缘处与管坯长度1/2截面中心处温差较大,最大约为93 ℃,钢锭加热温度越高,各部位温差越小;钢锭端部截面边缘处温度最高且升温速率最快,管坯长度1/2截面中心处温度最低且升温速率最慢。通过本文研究,推荐G115钢大型管坯的加热制度为炉温由300 ℃升高到500 ℃保温4 h,再升温到850 ℃保温4 h,升温到1000 ℃保温4 h后升温到1230 ℃保温20 h,可为其它工序的加热过程提供参考。

关键词: 马氏体耐热钢G115, 钢锭加热, 温度场, 有限元分析

Abstract: In order to optimize the heating process of martensitic heat resistant steel G115 heavy ingot before punching, the effect of heating process on temperature field of ingot was analyzed by finite element method. The results show that the temperature difference between the edge of the end section and 1/2 of the length of the ingot is larger, and the maximum temperature difference is 93 ℃. The higher the ingot heating temperature, the smaller the temperature difference. The edge of the end section has the highest temperature and the fastest heating rate, and the center of section of 1/2 longth of the ingot has the lowest temperature and the slowest heating rate. The research results can recommend the heating process of G115 steel heavy ingot before billet making, which is the furnace temperature increases from 300 ℃ to 500 ℃ held for 4 h, then to 850 ℃ held for 4 h, and rises to 1000 ℃ for 4 h then increases to 1230 ℃ for 20 h, it can provide a reference for the heating process of other processes.

Key words: martensitic heat-resistant steel G115, ingot heating, temperature field, finite element analysis

中图分类号:

赵欣, 陈正宗, 赵海平. 马氏体耐热钢大型管坯加热工艺模拟[J]. 金属热处理, 2022, 47(4): 208-212.

Zhao Xin, Chen Zhengzong, Zhao Haiping. Simulation of heating process for martensitic heat resistant steel G115 heavy pipe blanks[J]. Heat Treatment of Metals, 2022, 47(4): 208-212.

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马氏体耐热钢大型管坯加热工艺模拟

Simulation of heating process for martensitic heat resistant steel G115 heavy pipe blanks

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