Heat treatment of 30CrMnSi steel engine shell

doi:10.13251/j.issn.0254-6051.2023.12.015

Abstract

Abstract: In order to ensure the reliable quality and performance after heat treatment, research on heat treating process of an engine casing made of 30CrMnSi steel was implemented. The hardness and radial distortion of new and old heat treatment processes were compared and inspected by using the Rockwell hardness tester and a dial gauge. The results show that after normalizing at 840 ℃, quenching at 880 ℃, and tempering at medium temperature of 460-480 ℃, the product has good performance stability, less distortion, and significantly improved qualification rate, all reaching 100% qualification. The new process method can replace nitriding, not only reducing the emission of harmful gases, but also saving energy and environmental protection.

Key words: 30CrMnSi steel, heat treatment, hardness

CLC Number:

TG162

Fu Xing, Guo Zhaodong, Yao Zhongtao, Suo Zhongyuan, Liu Xintong, Tao Yuhang, Liu Junmin, Jiang Wei. Heat treatment of 30CrMnSi steel engine shell[J]. Heat Treatment of Metals, 2023, 48(12): 97-99.

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