ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2010, Vol. 31 ›› Issue (1): 55-56.

• 组织和性能 • 上一篇    下一篇

终轧温度对GCrl5轴承钢网状碳化物析出的影响

杨洪波1, 朱伏先1, 马宝国2,刘相华1   

  1. 1东北大学轧制技术及连轧自动化国家重点实验室,沈阳H0004;
    2宝山钢铁股份有限公司特殊钢分公司,上海200940
  • 收稿日期:2009-07-13 出版日期:2010-02-01 发布日期:2022-10-27
  • 作者简介:杨洪波(1980-),女,博士研究生,GCrl5轴承钢控轧控冷及球化退火工艺研究。

Effect of Finishing Temperature on Precipitation of Carbide Network in Bearing Steel GCrlS

Yang Hongbo1 ,  Zhu Fuxian1 ,  Ma Baoguo2 ,  Liu Xianghua1   

  1. 1 State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004 ;
    2 Special Steel Branch, Baosteel Co Ltd, Shanghai 200940
  • Received:2009-07-13 Published:2010-02-01 Online:2022-10-27

摘要: 研究了终轧温度(750~900℃)和成品规格(Φ12 mm和Φ5.5 mm)对GCr15轴承钢网状碳化物析出的影响。结果表明,当轧制规格为Φ12 mm、终轧温度为800℃时,碳化物网状级别最低,为1.5,终轧温度降至750℃时,碳化物网状级别增加至2.0;当轧制规格为Φ5.5 mm、终轧温度为850℃时,碳化物网状级别最低,为1.5,终轧温度在800℃时碳化物网状级别又升高至2.5。小规格轧材终轧温度过低,不利于网状碳化物析出的抑制,最佳终轧温度与轧制规格有关。

关键词: GCr15钢, 网状碳化物, 终轧温度, 轧制规格

Abstract: Effect of finishing temperature (750 ~900 °C ) and product size (Φ12 mm and Φ5. 5 mm) of rod on precipitation of carbide network in bearing steel GCrl5 has been studied. Results show that as railing ① 12 mm rod, with finishing temperature 800 °C , the rating of carbide network is minimum i. e. 1. 5, with decreasing finishing temperature to 750 °C , the rating of carbide network increases to 2. 0 ; as rolling Φ5. 5 mm rod, with finishing temperature 850 °C , the rating of carbide network in minimum i. e. 1. 5, with decreasing finishing temperature to 800°C the rating of carbide network increases again to 2. 5. For the light rod, the too low finishing temperature is not available to inhibit the precipitation of carbide network in steel. Therefore the optimum finishing temperature is related to specification of rolled products.

Key words: Steel GCrl5, Carbide Network, Finishing Temperature, Specification of Rolled Product