MIXTURE FOR MANUFACTURING MOLD CORES HARDENED BY THERMAL DRYING Russian patent published in 2001 - IPC

Abstract RU 2162384 C2

FIELD: foundry. SUBSTANCE: mixture contains 3.5-4.0% of phosphoric acid compound (orthophosphoric acid plus alumino-chromium-phosphate binder at ratio 1: 6), 0.5-0.7% of glycerol processing waste, and refractory binder. Glycerol processing waste contains 14.0-15.0% sodium chloride, 36.0-40.0% water, and 40.0-50.0% polyglycerol. EFFECT: stabilized mixture performance and increased its survivability and strength, and therefore improved quality of mold core. 2 cl, 2 tbl

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RU 2 162 384 C2

Authors

Bagrova N.V.

Fokin V.I.

Korolev G.P.

Bagrov D.F.

Dates

2001-01-27—Published

1999-04-13—Filed