金属热处理 ›› 2025, Vol. 50 ›› Issue (2): 166-171.DOI: 10.13251/j.issn.0254-6051.2025.02.026

• 工艺研究 • 上一篇    下一篇

热等静压机用36CrNi3MoV钢锻件的热处理工艺优化

史浩鹏1,2, 张志勇2, 石如星1,2, 陈明1,2, 代博杰1,2, 孔玉婷1,2   

  1. 1.洛阳中重铸锻有限责任公司, 河南 洛阳 471000;
    2.中信重工机械股份有限公司, 河南 洛阳 471000
  • 收稿日期:2024-06-25 修回日期:2024-12-09 发布日期:2025-04-10
  • 作者简介:史浩鹏(1995—),男,助理工程师,硕士,主要研究方向为大型铸锻件材料与热处理工艺,E-mail:shihp2024@126.com
  • 基金资助:
    河南省重大科技专项(221100230200)

Optimization of heat treatment process of 36CrNi3MoV steel forging for hot isostatic pressing machine

Shi Haopeng1,2, Zhang Zhiyong2, Shi Ruxing1,2, Chen Ming1,2, Dai Bojie1,2, Kong Yuting1,2   

  1. 1. Luoyang CITIC HIC Casting & Forging Co., Ltd., Luoyang Henan 471000, China;
    2. CITIC Heavy Industry Co., Ltd., Luoyang Henan 471000, China
  • Received:2024-06-25 Revised:2024-12-09 Published:2025-04-10

摘要: 研究了淬火温度、冷却方式、回火温度对热等静压机用36CrNi3MoV钢锻件组织和力学性能的影响。结果表明,在770~860 ℃水淬,600 ℃回火时,得到的组织为回火索氏体,随淬火温度的升高,其强度增大,冲击性能和塑性降低;采用不同冷却方式淬火时,水淬的组织最均匀,比油淬的强度略高;在580~620 ℃范围内回火时,随着回火温度的提高,其强度降低,冲击性能和塑性提高。36CrNi3MoV钢锻件的最佳热处理工艺为830~860 ℃水淬+600 ℃回火,可以获得符合NB/T 47008—2017和设计要求的力学性能。

关键词: 热等静压机, 36CrNi3MoV钢, 调质处理, 力学性能

Abstract: Effects of quenching temperature, cooling method and tempering temperature on microstructure and mechanical properties of the 36CrNi3MoV steel forging for hot isostatic pressing machine were studied. The results show that when quenched between 770-860 ℃ and tempered at 600 ℃, the obtained microstructure is tempered martensite. With the increase of quenching temperature, the strength increases, while the impact property and plasticity decrease. When quenched with different cooling methods, the water quenched microstructure is the most uniform. The strength of water quenched steel is slightly higher than that of oil quenched. When tempered in the range of 580-620 ℃, with the increase of tempering temperature, the strength decreases, but the impact property and plasticity increase. The optimal heat treatment process consists of austenitizing in the range of 830-860 ℃, water quenching and then tempering at 600 ℃,which can achieve mechanical properties that meet the design requirements and NB/T 47008-2017.

Key words: hot isostatic pressing machine, 36CrNi3MoV steel, quenching and tempering, mechanical properties

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