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2 349 660

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IPC

C22C5/04(2006-01-01)

(21) (22)

Application

2007130467/02, 2007-08-08

(24)

Start date

2007-08-08

(22)

Actual filing date

2007-08-08

(45)

Published

2009-03-20

(72)

Inventor

Efimov Valerij NikolaevichMamonov Sergej NikolaevichEl'Tsin Sergej IvanovichShul'Gin Dmitrij Romanovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Tsvetnykh Metallov Imeni V.N. Gulidova"

JEWELRY ALLOY ON BASIS OF PALLADIUM Russian patent published in 2009 - IPC C22C5/04

Abstract RU 2349660 C1

FIELD: metallurgy.

SUBSTANCE: jewelry alloy on the basis of palladium contains components in a following ratio, wt %: palladium - 90.0-95.5, gold - 0.5-3.0, gallium - 0.3-0.8, germanium - 0.5-1.5, copper - the rest. Invention is directed to creation of alloy for manufacturing of products of 950 and 900 hallmark by method of micro- investment casting and allowing shine with feebly marked a yellowish cast.

EFFECT: reduction of alloy hardness.

1 ex

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RU 2 349 660 C1

Authors

Efimov Valerij Nikolaevich

Mamonov Sergej Nikolaevich

El'Tsin Sergej Ivanovich

Shul'Gin Dmitrij Romanovich

Dates

2009-03-20—Published

2007-08-08—Filed