石膏型表面喷涂强冷涂料对铸件缩松缺陷的改善研究  

Study on Reducing Shrinkage Porosity Defects by Spraying Strong Cold Coating on the Surface of Plaster Mold

作　　者：杜平 张伟 岳鑫 韩明 王磊 DU Ping;ZHANG Wei;YUE Xin;HAN Ming;WANG Lei(Himile Mechanical Science And Technology(ShanDong)Co.Ltd.,Gaomi 261500,China;Shandong Key Laboratory of Tire Mould Technology,Gaomi 261500,China)

机构地区：[1]山东豪迈机械科技股份有限公司,山东高密261500 [2]山东省轮胎模具关键技术重点实验室,山东高密261500

出　　处：《铸造技术》2019年第12期1328-1331,共4页Foundry Technology

摘　　要：低压铸造中对石膏型表面质量及性能有非常高的要求,根据多年低压铸造铝合金花纹块的经验及建立缩松数据库,分析石膏型表面喷涂强冷涂料对花纹块缩松的影响,主要包括强冷涂料性能研究、喷涂手法、涂层厚度、喷涂时机、烘干时间等,并应用于实际生产中,极大地降低了花纹块的缩松率,改善了铸铝花纹块缩松缺陷,降低了生产成本。The surface quality and properties of gypsum mold were very high in low pressure casting.Based on years of experience in low-pressure casting aluminum alloy pattern blocks and the establishment of shrinkage database,the influence of gypsum surface coating on shrinkage of pattern blocks was analyzed.It mainly includes performance research of strong cold coating,spraying technique,coating thickness,spraying time,drying time,etc.When applied to practical production,the shrinkage porosity rate of the pattern block is greatly reduced,the shrinkage porosity defects of the cast aluminum pattern block is improved,and the production cost is reduced.

关 键 词：石膏型 铝合金 低压铸造 强冷涂料 缩松 

分 类 号：TG249[金属学及工艺—铸造]