| 余热处理钢筋剪切开裂分析 |
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| 引用本文： | 周刚,高长益,张家相,蔡晓霞.余热处理钢筋剪切开裂分析[J].理化检验(物理分册),2012(7):475-477,482. |
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| 作者姓名： | 周刚 高长益 张家相 蔡晓霞 |
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| 作者单位： | 首钢水钢技术中心,六盘水553028 |
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| 摘 要： | 通过金相检验、扫描电镜观察、夹杂物分析和工艺分析等手段对牌号为HRB335,规格为击Ф22mm的余热处理钢筋剪切开裂的原因进行了分析。结果表明：是由于连铸坯内部裂纹中存在的夹杂物导致铸造裂纹在轧制过程中不能被焊合，从而引起了钢筋剪切开裂。
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| 关 键 词： | 余热处理钢筋 剪切开裂 铁素体带 夹杂物 连铸 中间裂纹 |
Analysis on Shear Cracking of Remained Heat Treatment Steel Bar |
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| ZHOU Gang. GAO Chang-yi. ZHANG Jia-xiang. CAI Xiao-xia.Analysis on Shear Cracking of Remained Heat Treatment Steel Bar[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2012(7):475-477,482. |
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| Authors: | ZHOU Gang GAO Chang-yi ZHANG Jia-xiang CAI Xiao-xia |
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| Affiliation: | ZHOU Gang. GAO Chang-yi. ZHANG Jia-xiang. CAI Xiao-xia (Technology Center, Shougang Shuicheng Iron ＆. Steel (Group) Co. , I.td. , Liupanshui 553028, China) |
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| Abstract: | The causes of shear cracking of Ф22 mm remained heat treatment HRB335 steel bar were analyzed by means of metallographic examination, SEM observation, inclusion analysis, technics analysis and so on. The results showed that internal cracks in billet led to shear cracking of steel bar. |
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| Keywords: | remained heat treatment steel bar shear cracking ferrite band inclusion continuous casting central crack |
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