大型铸件砂芯的排气措施  

Venting Measures of Sand Core for Large-Sized Castings

作　　者：何春华[1] 林海强[1] 崔炜 林琳[1] 林旭森[1] 

机构地区：[1]广西玉柴机器股份有限公司,广西玉林537005 [2]广西玉柴机器配件制造有限公司,广西玉林537005

出　　处：《铸造》2013年第1期73-74,共2页Foundry

摘　　要：对于内腔形状复杂的大型铸件,砂芯的排气质量会影响到整个铸件的质量。为了保证砂芯排气畅通,在砂芯制作和造型时,加入了排气介质。当浇注时,埋在砂芯中的排气介质受热就会快速气化,形成一条完整的排气通道,从而保证砂芯排气畅通。For the complex shape of the inner cavity and large-sized castings, the venting quality of sand core influences the whole quality of castings. In order to ensure the venting of sand core, the media for venting were added in the sand core and mold, which were buried in the sand core and molding sand and could be gasified quickly during the filling. Venting channel resulted from the gasification of the media ensured the exhausting of the air.

关 键 词：大型铸件 砂芯 排气 

分 类 号：TG242[金属学及工艺—铸造]