基于饱和值调整法的真空低压渗碳工艺计算与验证

doi:10.13251/j.issn.0254-6051.2020.09.043

金属热处理 ›› 2020, Vol. 45 ›› Issue (9): 233-236.DOI: 10.13251/j.issn.0254-6051.2020.09.043

基于饱和值调整法的真空低压渗碳工艺计算与验证

陈旭阳, 丛培武, 范雷, 王同

北京机电研究所有限公司,北京 100083

收稿日期:2020-03-15 出版日期:2020-09-25 发布日期:2020-12-29
作者简介:陈旭阳(1993—),女,助理工程师,硕士,主要研究方向为真空热处理技术及装备,E-mail:yangyangcxy@163.com
基金资助:
“高档数控机床与基础制造装备"科技重大专项(2018ZX04044001)

Calculation and verification of vacuum low pressure carburizing process based on saturation adjustment method

Chen Xuyang, Cong Peiwu, Fan Lei, Wang Tong

Beijing Research Institute of Mechanical and Electrical Technology Ltd.,Beijing 100083,China

Received:2020-03-15 Online:2020-09-25 Published:2020-12-29

摘要/Abstract

摘要： 基于Fick第二定律与饱和值调整法,结合真空低压渗碳工艺控制过程,绘制了算法流程图,并利用数学计算软件编写了真空低压渗碳工艺计算程序,以20Cr钢为试验对象对该程序进行了验证。结果表明:基于饱和值调整法的真空低压渗碳工艺处理后,20Cr钢渗碳工艺总时间比传统方式约快240 s,渗碳时间节约600 s以上;渗碳工艺计算程序可以实现渗层深度的准确预测,且能满足产品的表面碳化物级别、组织形态等较高的技术要求。

关键词: 真空低压渗碳, 饱和值调整法, 渗层深度, 工艺控制

Abstract: Based on Fick's second law and saturation adjustment method,combining with the control process of vacuum low pressure carburizing process,an algorithm flowchart was given out and a calculation program for vacuum low pressure carburizing process was compiled by using mathematical calculation software,then the program was verified with 20Cr steel as the test object.The results show that the total time of the carburizing process for 20Cr steel is about 240 s faster than that of the traditional way,and the carburizing time is saved more than 600 s by adopting the vacuum low pressure carburizing process based on the saturation adjustment method.The calculation program for carburizing process can accurately predict the depth of carburizing layer,and can meet the higher technical requirements of surface carbide grade on the product and microstructure.

Key words: vacuum low pressure carburizing, saturation adjustment method, carburizing depth, process control

中图分类号:

TG156.3

陈旭阳, 丛培武, 范雷, 王同. 基于饱和值调整法的真空低压渗碳工艺计算与验证[J]. 金属热处理, 2020, 45(9): 233-236.

Chen Xuyang, Cong Peiwu, Fan Lei, Wang Tong. Calculation and verification of vacuum low pressure carburizing process based on saturation adjustment method[J]. Heat Treatment of Metals, 2020, 45(9): 233-236.

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基于饱和值调整法的真空低压渗碳工艺计算与验证

Calculation and verification of vacuum low pressure carburizing process based on saturation adjustment method

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