MIXTURE FOR MAKING MOULDS AND CORES Russian patent published in 2024 - IPC B22C1/14 B22C1/18 

Abstract RU 2820616 C1

FIELD: foundry.

SUBSTANCE: mixture for making easily knockout moulds and cores contains, wt.%: liquid glass – 6, refractory clay – 1-3, quartz sand – 88-92 and a process additive of vegetal origin. As a process additive of vegetable origin, mixture contains 1-3 wt.% of spent coffee grounds with water content of 40 wt.%. Introduction of spent coffee grounds into the mixture on liquid glass binder in said amount reduces residual strength of moulds and cores.

EFFECT: improved knockout ability of moulds and cores from sand mixtures on liquid glass binder and recycling of wastes formed after preparation of coffee beans.

1 cl, 1 tbl, 1 ex

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RU 2 820 616 C1

Authors

Kidalov Nikolai Alekseevich

Belova Natalia Vladimirovna

Belov Artem Alekseevich

Dibrov Andrei Ivanovich

Miroshkin Nikolai Iurevich

Dates

2024-06-06Published

2023-12-27Filed