金属热处理 ›› 2024, Vol. 49 ›› Issue (1): 192-197.DOI: 10.13251/j.issn.0254-6051.2024.01.030

• 工艺研究 • 上一篇    下一篇

60Si2Mn钢木材削片机刀片的强韧化热处理

汤黎黎1, 陈康敏2, 罗新民2   

  1. 1. 镇江嘉林机械有限公司, 江苏 镇江 212000;
    2. 江苏大学 材料科学与工程学院, 江苏 镇江 212013
  • 收稿日期:2023-09-08 修回日期:2023-11-30 发布日期:2024-02-29
  • 通讯作者: 陈康敏,正高级工程师,E-mail: kmchen@ujs.edu.cn
  • 作者简介:汤黎黎(1981—),男,工程师,主要研究方向为工业机用刀片的热处理工艺,E-mail: 12332702@qq.com。

Strengthening and toughening heat treatment of 60Si2Mn steel chipping blades for wood-chip machine

Tang Lili1, Chen Kangmin2, Luo Xinmin2   

  1. 1. Zhenjiang Jialin Machine Co., Ltd., Zhenjiang Jiangsu 212000, China;
    2. School of Materials Science and Engineering, Jiangsu University, Zhenjiang Jiangsu 212013, China
  • Received:2023-09-08 Revised:2023-11-30 Published:2024-02-29

摘要: 针对木材削片机刀片的服役条件,对60Si2Mn热轧钢刀片采用不同的预备热处理和强韧化热处理工艺,测试了其显微组织、抗弯强度、冲击性能及耐磨性,优化了60Si2Mn热轧钢刀片的热处理工艺。结果表明,60Si2Mn热轧钢经过双细化球化退火预先热处理,在900~930 ℃淬火和在300~310 ℃回火的马氏体级别为1级,能获得良好的强韧性配合。经900 ℃淬火+310 ℃回火后,60Si2Mn热轧钢刀片的抗弯强度达4350 MPa,挠度为12.4;冲击吸收能量为10.3 J;98 N载荷磨擦4 h的总磨损量为14 mg,可以满足轻载削片机刀片的技术要求。

关键词: 木材削片机, 刀片, 60Si2Mn钢, 淬火回火, 强韧化

Abstract: In according with the service conditions of wood-chip cutting machine, the preparatory heat treatment and strengthening and toughening heat treatment processes were designed for the 60Si2Mn hot-rolled steel blades, and the metallographic structure, bending strength, impact property and wear resistance were tested, and the heat treatment process of the cutting machine blades made of 60Si2Mn hot-rolled steel was optimized. The results show that the 60Si2Mn hot-rolled steel blades can obtain good combination of strength and toughness after double-refinement spheroidizing annealing, and quenching at 900-930 ℃ and tempering at 300-310 ℃, which the martensitic grade is grade 1. When quenched at 900 ℃ and tempered at 310 ℃, the bending strength reaches 4350 MPa, the impact absorbed energy is 10.3 J, and the total wear mass loss under the load of 98 N for 4 h is 14 mg, which fully meets the technical requirements of the blades of the light duty wood-chip machine.

Key words: wood-chip machine, chipping blades, 60Si2Mn steel, hardening and tempering, strengthening and toughening

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