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2 014 211

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(51)

IPC

(21) (22)

Application

4898527/08, 1990-10-02

(22)

Actual filing date

1990-10-02

(45)

Published

1994-06-15

(72)

Inventor

Ehfros M.G.Elagina I.A.Tsyv'Jan A.M.Shishko E.A.Zinchenko V.P.Kolomazin V.M.Mironjuk V.S.

(73)

Holder

Gosudarstvennyj Nauchno-Issledovatel'Skij Institut Abrazivov I Shlifovanija

FOUNDRY SAND FOR ABRASIVE TOOL MAKING Russian patent published in 1994 - IPC

Abstract RU 2014211 C1

FIELD: abrasive tools. SUBSTANCE: foundry sand has synthetic corundum abrasive, kaolin, feldspar, talc, temporary binder, water and boroncalcium frit at the ratio of feldspar and frit 1:(1.3-2.2). Foundry sand has the following composition, wt.-%: synthetic corundum abrasive 69.9-90.1; kaolin 1.3-8.3; feldspar 0.9-7.1; talc 0.05-1.7; water 0.45-3.9; temporary binder 0.7-4.9, and boroncalcium frit 1.8-11.9. EFFECT: enhanced quality of foundry sand. 2 tbl

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RU 2 014 211 C1

Authors

Ehfros M.G.

Elagina I.A.

Tsyv'Jan A.M.

Shishko E.A.

Zinchenko V.P.

Kolomazin V.M.

Mironjuk V.S.

Dates

1994-06-15—Published

1990-10-02—Filed