Citic Dicastal Co., Ltd

Citic Co., Limited

Haifeng Liu

Yu Sun

Xing Han

Bao Zhang

Ji Wang

Bangwei Bai

Xin Liang

Hongren Zhang

Liming Xie

Yugang Gao

Chao Ma

Baoshui Ma

Xinlei Li

Peng Qin

The application discloses a preparation method for an aluminum alloy cavity casting filled with special-shaped foamed aluminum. The preparation method includes: preparing special-shaped foamed aluminum in a first mold by adopting a powder metallurgy foaming method; fixing the special-shaped foamed aluminum coated with the soldering flux in a second mold after the special-shaped foamed aluminum is coated with soldering flux; and casting by using molten aluminum alloy. According to the preparation method for the aluminum alloy cavity casting filled with the special-shaped foamed aluminum, the overall strength of the casting can be improved while the wall thickness of the casting is reduced to meet the requirement that the overall quality of the casting is not increased.

Preparation method for aluminum alloy cavity casting filled with special-shaped foamed aluminum

A riser tube coating for a cast aluminum alloy includes a coating-riser tube contact layer material and a coating-aluminum liquid contact layer material. The present invention has a coating protection effect to the maximum mainly by designing ratios of ZrO, AlO, ZnO, binders and other materials and a coat drying heat treatment process, and finally realizes effects of protecting a riser tube, being free of aluminum sticking and prolonging a service life.

Riser tube coating for cast aluminum alloy and using method thereof

Disclosed is a preparation method of a foamed aluminum special-shaped part. The preparation method comprises the following steps: S1, pressing wax molds; S2, making a shell; S3, carrying out smelting; S4, carrying out casting; and S5, vibrating the shell. Finally, the foamed aluminum special-shaped part is obtained for a preparation process of a foamed aluminum compound casting.

Preparation method of foamed aluminum special-shaped part

Growing community of inventors

Qinhuangdao, China

Haifeng Liu