Patent · US Active

Method for the production of core sand and/or molding sand for casting purposes

US9764377B2 · kind B2 · utility

1Cited by

6References

13Claims

0Family size

Assignee

S & B Industrial Minerals GmbH · DE

Inventors

Andreas Wolff · Munich, DE
Bettina VENNEMANN · Goch, DE
Dieter GENSKE · Olfen, DE
Peter OBERSCHELP · Duisburg, DE

Key dates

Filing date	Aug 8, 2016
Grant date	Sep 19, 2017
Priority date	—
Expiry date	Aug 8, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22C9/10
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to a method for producing core sand and/or molding sand for casting purposes. A granular mineral mold base material is mixed with at least one inorganic binder and additionally an inorganic expanding additive. Water glass may be used as the binder and expandable graphite may be used as the expandable additive.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.