MOLDING MATERIALS MIXTURES BASED ON INORGANIC BINDERS AND A METHOD OF PRODUCING PRESS MOLDS AND CORES FOR METAL CASTING Russian patent published in 2018 - IPC B22C1/18 

Abstract RU 2650219 C2

FIELD: foundry.

SUBSTANCE: present invention relates to foundry. Mixture contains: a refractory base molding material, an inorganic binder and amorphous SiO2 in the form of particles. Amorphous SiO2 are obtained by thermal decomposition of ZrSiO4 on ZrO2 and SiO2. In amorphous SiO2 the content of zirconium in terms of ZrO2 is from more than 0.1% by weight to less than about 12% by weight.

EFFECT: improvement in the properties of inorganic binders is provided.

21 cl, 11 tbl, 4 ex, 3 dwg

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RU 2 650 219 C2

Authors

Bartels, Dennis

Deters, Heinz

Gieniec, Antoni

Koch, Diether

Lincke, Hannes

Oberleiter, Martin

Schmidt, Oliver

Wallenhorst, Carolin

Dates

2018-04-11Published

2013-10-18Filed