Metal Mold Low-pressure Casting of Large Aluminum Alloy Flange

Li Zhengxuan; Xi Xu; Xie Chun; Sun Yinjian; Zhu Qingwen

doi:10.15980/j.tzzz.2014.07.017

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Metal Mold Low-pressure Casting of Large Aluminum Alloy Flange
Vol. 34, Issue 7, Pages: 723-725(2014)
Published： 2014 ，
DOI： 10.15980/j.tzzz.2014.07.017

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[1]李正选,奚旭,谢淳,孙银建,祝青文.大型铝合金法兰的金属型低压铸造[J].特种铸造及有色合金,2014,34(07):723-725.

Li Zhengxuan, Xi Xu, Xie Chun, et al. Metal Mold Low-pressure Casting of Large Aluminum Alloy Flange. [J]. Special Casting & Nonferrous Alloys 34(7):723-725(2014)
[1]李正选,奚旭,谢淳,孙银建,祝青文.大型铝合金法兰的金属型低压铸造[J].特种铸造及有色合金,2014,34(07):723-725. DOI： 10.15980/j.tzzz.2014.07.017.

Li Zhengxuan, Xi Xu, Xie Chun, et al. Metal Mold Low-pressure Casting of Large Aluminum Alloy Flange. [J]. Special Casting & Nonferrous Alloys 34(7):723-725(2014) DOI： 10.15980/j.tzzz.2014.07.017.

摘要

带多处减轻孔的大型铝合金法兰采用了金属型低压铸造工艺

实现了批量生产。其特点是:对铸件24处内减轻盲孔的处理

采取了铁芯固定与不固定脱型工艺;为使金属型冷却速度加快

对金属型采取了吹风措施;通过下冷铁

将浇口设计为‘倒八’字

去掉浇口处的陶瓷保温套

缩短浇口补缩距离

延长浇口处凝固时间

提高了铸件补缩能力。

Abstract

Large aluminum flange is manufactured commonly by sand mold casting for releasing and feeding difficulties. To improve product efficiency and quality

decrease surface roughness

a larger aluminum alloy flange with multi lightening holes was produced by metal mold low pressure casting

realizing continuous production.The 24 lightening blind holes in the aluminum alloy flange adopted iron-core fixture and dis-fixed core-pulling method. Wind-blowing for the metal mold was conducted to accelerate the cooling velocity. Through setting lower-cold iron

designing"reversen"gate and canceling ceramic sleeve as well as shortening feeding distance of riser and increasing solidification

feeding capacity of aluminum alloy flange was improved.