| 水冷金属型离心铸管缩沟缺陷研究 |
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| 引用本文： | 王正国,陈福生,卫英慧,侯利锋,卞华康. 水冷金属型离心铸管缩沟缺陷研究[J]. 机械工程与自动化, 2011, 0(3): 93-95 |
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| 作者姓名： | 王正国 陈福生 卫英慧 侯利锋 卞华康 |
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| 作者单位： | 1. 太原理工大学,材料科学与工程学院,山西太原030024
2. 泫氏铸管有限公司,山西高平,048400 |
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| 摘 要： | 针对水冷金属型离心铸造球铁管生产中出现的缩沟以及断裂缩沟铸造缺陷进行了研究,表明了缩沟与断裂缩沟为不同类型的铸造缺陷,初步确定了缩沟形成的机理和影响因素,认为硅严重偏析降低了铁水的液相线,减缓了外壁的凝固速度,是缩沟缺陷形成的主要原因,从而为减少或消除缩沟明确了方向。
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| 关 键 词： | 离心铸管 缩沟 断裂缩沟 成分偏析 |
Study on Retractile Ditch Defects of Centrifugal Casting Pipe with Water-cooled Permanent Mould |
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| WANG Zheng-guo,CHEN Fu-sheng,WEI Ying-hui,HOU Li-feng,BIAN Hua-kang. Study on Retractile Ditch Defects of Centrifugal Casting Pipe with Water-cooled Permanent Mould[J]. Mechanical Engineering & Automation, 2011, 0(3): 93-95 |
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| Authors: | WANG Zheng-guo CHEN Fu-sheng WEI Ying-hui HOU Li-feng BIAN Hua-kang |
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| Affiliation: | WANG Zheng-guo1,CHEN Fu-sheng2,WEI Ying-hui1,HOU Li-feng1,BIAN Hua-kang1(1.College of Material Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China,2.Casted Tube of Xuanshi Company,Gaoping 048400,China) |
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| Abstract: | Focusing on ditch defects and faulted ditch defects formed during the production of centrifugal casting pipe with water-cooled permanent mould,this paper indicated that ditch defects and faulted ditch defects were different type of cast defects.The paper preliminary determined the mechanism and influencing factor on the formation of ditch defects.The main causation of ditch defects was the element segregation of Si lead to the declining of liquidus and the slowing down of extine solidification.And this stud... |
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| Keywords: | centrifugally casted ductile iron pipe ditch defects faulted ditch defects component segregation |
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