| Q460组织异常和微裂纹控制研究 |
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| 引用本文： | 杨蕾,赵福才.Q460组织异常和微裂纹控制研究[J].科技资讯,2011(22):105-105,107. |
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| 作者姓名： | 杨蕾 赵福才 |
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| 作者单位： | 西安建筑科技大学冶金工程学院西安710055 |
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| 摘 要： | 本文通过金相观察、扫描电镜分析,对Q460中板轧制过程出现的组织异常和表面微裂纹进行研究,结果发现中板上表面冷却速度过大造成组织异常,小型夹杂诱发微裂纹,在企业中定期更换中间包水口,控制中板上表面冷速,解决缺陷问题。
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| 关 键 词： | 组织异常 微裂纹 控制 |
Abnormal structure and surface micro cracks control of Q460 |
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| Abstract: | The formation mechanism of abnormal structure and surface micro cracks of Q460 medium plates was studied by metallographic analysis and scanning electron microscopy analysis.The test results show that abnormal structure of medium plates caused by large Cooling rate on the on the surface.Surface micro cracks induced by small inclusion.Regular replacing tundish nozzle and contrling Cooling rate on the on the surface resolve the problem. |
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| Keywords: | Abnormal structure Micro cracks Control |
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