熔模铸造400系列不锈钢铸件表面麻点缺陷探索  被引量:1

Research of Mechanical Pitting Defects on the Surface of 400 Series Stainless Steel Casting by Investment Casting

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作  者:鞠富 武志勇 李翠薇 郝素斌 徐贵强 

机构地区:[1]石家庄盛华企业集团有限公司,河北石家庄050800

出  处:《铸造》2017年第7期707-710,共4页Foundry

摘  要:400系列不锈钢材质在熔模铸造生产中易发生氧化,导致铸件产生麻点及麻坑缺陷。在制壳过程中加一层石墨砂,使浇注后钢液与型壳接触面形成还原性气氛,可防止麻点麻坑的产生,保证成品率,提高生产效率。Mechanical pitting and pockmark defects are often founded on the surface of 400 series stainless steel casting by investment casting because of oxidation. A layer of graphite sand was added during the shell mold making process, which can make the reducing atmosphere between the steel melt and surface of the mold. The above measures can prevent the mechanical pitting and pockmark defects, ensure the yield of the castings, and improve production efficiency

关 键 词:400系列不锈钢 熔模铸造 麻点 麻坑 石墨砂 

分 类 号:TG249.5[机械工程—精密仪器及机械]

 

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