QUALITY CONTROL REQUIRMENTS OF HOT ROLLING PROCESS FOR HRBF500
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摘要: 以20MnSi坯料为基本成分,通过调整化学成分,修改精轧孔型设计参数,采用控制轧制和控制冷却工艺,成功地生产铁素体晶粒尺寸在5~10m的500 MPa级细晶粒钢筋。结合500 MPa级细晶粒螺纹直条的开发经验,对影响产品质量的若干因素进行分析,并提出解决办法。Abstract: According to the existing process and equipment,the 500 MPa fine graned steel rebar of 20MnSi with ferrite grain size of 5~10 m was successfully developed by adjusting the chemical compositions and new design of deformation parameters of finite roll pass,as well as using new process with controlled rolling and cooling techniques.On the basis of the experience for successfully developing 500 MPa fine graned steel rebar and the analysis of the factors effecting the quality,the solutions are finally proposed
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Key words:
- fine grained steel rebar /
- quality control controlled rolling /
- controlled cooling /
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[2] 支艳斌,曹树卫,彭南超,等.超细晶粒钢筋热轧生产工艺研究[J].上海金属,2008,30(1):24-26. 小指军夫.控制轧制控制冷却改善材质的轧制技术发展[M].北京:冶金工业出版社,2002:6-20. [3] 翁宇庆.超细晶钢理论及技术进展[J].钢铁,2005,40(3):1-8. [4] 夏卿坤,胡冠昱.形变诱导铁素体相变技术[J].长沙大学学报,2005,19(2):15-18.
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