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2 223 169

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C1

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IPC

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Application

2003100251/15, 2003-01-04

(24)

Start date

2003-01-04

(22)

Actual filing date

2003-01-04

(45)

Published

2004-02-10

(72)

Inventor

Djatlov V.N.Osintsev A.A.Barkov L.A.Chaplygin A.B.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Dom Zavody Urala"

PRESS-MOLD FOR MAKING BLANKS OF ABRASIVE WHEELS Russian patent published in 2004 - IPC

Abstract RU 2223169 C1

FIELD: manufacture of abrasive wheels. SUBSTANCE: press-mold for pressing blanks of abrasive wheels with vulcanite binder includes yoke 1. Conicity angle of inner cone surface of yoke is more than friction angle on said surface. Press-mold includes slit type die (2) with outer cone surface, upper (5, 6, 7) and lower (11) punches and mechanism for holding die (2) in closed state in holder (12, 13). Press-mold is provided with cone mandrel (3) having attachment (4) put onto mandrel and made of elastic material. Attachment (4) is placed in cavity (8) of upper punch along its axis and it is joined with it by means of elastic member (10). EFFECT: elimination of cracking and spills occurred at knocking blank out off die. 2 dwg

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RU 2 223 169 C1

Authors

Djatlov V.N.

Osintsev A.A.

Barkov L.A.

Chaplygin A.B.

Dates

2004-02-10—Published

2003-01-04—Filed

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