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

doi:10.13251/j.issn.0254-6051.2020.09.043

Heat Treatment of Metals ›› 2020, Vol. 45 ›› Issue (9): 233-236.DOI: 10.13251/j.issn.0254-6051.2020.09.043

• TEST AND ANALYSIS • Previous Articles Next Articles

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

Abstract

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

CLC Number:

TG156.3

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

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