| 消失模铸件夹砂和夹渣缺陷的成因及对策 |
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| 引用本文： | 王林慧,张宝庆,袁东洲,裴虎平,王国平.消失模铸件夹砂和夹渣缺陷的成因及对策[J].现代铸铁,2010,30(6):56-58. |
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| 作者姓名： | 王林慧 张宝庆 袁东洲 裴虎平 王国平 |
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| 作者单位： | [1]山西晋城市春晨兴汇实业公司,山西晋城048012 [2]郑州机械研究所,河南郑州450052 [3]晋城市金珂铸业制造有限公司,山西晋城048012 [4]晋城市鑫金铸造有限公司,山西晋城048012 |
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| 摘 要： | 由于在消失模铸造生产过程中涂料层的剥落、开裂和裂纹以及浇注系统封闭不严密等原因将导致砂粒、涂料和夹杂物随着液体金属进入铸件,是造成铸件夹砂和夹渣缺陷的主要原因。指出提高涂料的强度、耐火度,精心装箱操作,采用正确的负压浇注工艺参数,集渣挡渣撇渣技术以及铁液过滤、净化技术等,可以减少和消除夹砂、夹渣缺陷。
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| 关 键 词： | 消失模铸造 夹砂、夹渣缺陷 对策 |
Sand Inclusion and Slag Inclusion Formation Reasons and Countermeasures of Lost foam Castings |
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| WANG Lin-hui,ZHANG Bao-qing,YUAN Dong-zhou,PEI Hu-ping,WANG Guo-ping.Sand Inclusion and Slag Inclusion Formation Reasons and Countermeasures of Lost foam Castings[J].Modern Cast Iron,2010,30(6):56-58. |
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| Authors: | WANG Lin-hui ZHANG Bao-qing YUAN Dong-zhou PEI Hu-ping WANG Guo-ping |
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| Affiliation: | 1.Chunchen Xinghui Industry Co.Ltd.,Jincheng 048012,China;2.Zhengzhou Machinery Research Institute,Zhengzhou 450052,China;3.Jinke Foundry Manufacture Co.Ltd.,Jincheng 048012,China;4.Jincheng Xinjin Foundry Co.Ltd.,Jincheng 048012,China) |
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| Abstract: | It is the main reasons of sand inclusion and slag inclusion defects formation of castings that the scaling off and cracking of the coating layer as well as the gating system being not properly sealed during the lost foam casting process which causing the sand particles,coating and other impurity inclusions entering the casting together with the molten.It was pointed out that the sand and slag inclusions defects could be reduced and eliminated by adopting correct vacuum pouring parameters,slag collecting and skimming techniques,as well as the molten iron filtering and purifying techniques. |
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| Keywords: | lost foam casting sand and slag inclusion defects countermeasure |
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