ATE129130T1 - PRECIOUS METAL MOLDED BODY, METHOD FOR THE PRODUCTION THEREOF, MOLDABLE MIXTURE FOR THE PRODUCTION THEREOF AND METHOD FOR PRODUCING THIS MOLDABLE MIXTURE. - Google Patents

PRECIOUS METAL MOLDED BODY, METHOD FOR THE PRODUCTION THEREOF, MOLDABLE MIXTURE FOR THE PRODUCTION THEREOF AND METHOD FOR PRODUCING THIS MOLDABLE MIXTURE.

Info

Publication number
ATE129130T1
ATE129130T1 AT91108050T AT91108050T ATE129130T1 AT E129130 T1 ATE129130 T1 AT E129130T1 AT 91108050 T AT91108050 T AT 91108050T AT 91108050 T AT91108050 T AT 91108050T AT E129130 T1 ATE129130 T1 AT E129130T1
Authority
AT
Austria
Prior art keywords
precious metal
moldable mixture
metal powder
production
powder
Prior art date
Application number
AT91108050T
Other languages
German (de)
Inventor
Koji C O Chuo-Kenkyush Hoshino
Kitabukuro-Cho
Masaki C O Sanda-Kojo Morikawa
Park Techno
Tohru C O Chuo-Kenkyusho Kohno
Koshiro C O Chuo-Kenkyush Ueda
Masaki C O Chuo-Kenky Miyakawa
Original Assignee
Mitsubishi Materials Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2128447A external-priority patent/JP2760134B2/en
Priority claimed from JP2178753A external-priority patent/JP2774974B2/en
Priority claimed from JP2241018A external-priority patent/JP3004038B2/en
Priority claimed from JP2241015A external-priority patent/JPH04120202A/en
Priority claimed from JP2241017A external-priority patent/JP2932648B2/en
Priority claimed from JP24101490A external-priority patent/JP2932647B2/en
Priority claimed from JP2241016A external-priority patent/JP2924139B2/en
Priority claimed from JP2270938A external-priority patent/JP2836232B2/en
Application filed by Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Application granted granted Critical
Publication of ATE129130T1 publication Critical patent/ATE129130T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments
    • A44C27/001—Materials for manufacturing jewellery
    • A44C27/002—Metallic materials
    • A44C27/003—Metallic alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

There is disclosed a precious metal article (1) which is formed of a solid-phase sintered product of a precious metal powder. For manufacturing the precious metal article, a moldable mixture which contains a precious metal powder and a binder removable by sintering is shaped into a prescribed molded object, and the molded object is then subjected to sintering. The moldable mixture is produced by preparing a precious metal powder, preparing a jellylike cellulose binder by blending a cellulose with water and leaving for a prescribed period of time, and blending the precious metal powder and the jellylike cellulose binder together. The most preferable moldable mixture contains 50 to 90 % by weight of precious metal powder, 0.8 to 8 % by weight of water-soluble cellulose binder, 0.08 to 3 % by weight of a surface-active agent. 0.1 to 3 % by weight of oil, balance water and unavoidable impurities. The precious metal powder preferably contains gold powder and powder of an alloy containing silver or copper, and the gold powder is obtained by submerged-reduction method. <IMAGE>
AT91108050T 1990-05-18 1991-05-17 PRECIOUS METAL MOLDED BODY, METHOD FOR THE PRODUCTION THEREOF, MOLDABLE MIXTURE FOR THE PRODUCTION THEREOF AND METHOD FOR PRODUCING THIS MOLDABLE MIXTURE. ATE129130T1 (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP2128447A JP2760134B2 (en) 1990-05-18 1990-05-18 Noble metal molding plastic composition
JP2178753A JP2774974B2 (en) 1990-07-06 1990-07-06 Production method of decorative articles and arts and crafts made of precious metal sintered bodies
JP2241018A JP3004038B2 (en) 1990-09-11 1990-09-11 Manufacturing method of metal articles
JP2241015A JPH04120202A (en) 1990-09-11 1990-09-11 Manufacture of metal article
JP2241017A JP2932648B2 (en) 1990-09-11 1990-09-11 Manufacturing method of metal articles
JP24101490A JP2932647B2 (en) 1990-09-11 1990-09-11 Manufacturing method of metal articles
JP2241016A JP2924139B2 (en) 1990-09-11 1990-09-11 Manufacturing method of metal articles
JP27093990 1990-10-09
JP2270938A JP2836232B2 (en) 1990-10-09 1990-10-09 Alloy gold clay

Publications (1)

Publication Number Publication Date
ATE129130T1 true ATE129130T1 (en) 1995-11-15

Family

ID=27577406

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91108050T ATE129130T1 (en) 1990-05-18 1991-05-17 PRECIOUS METAL MOLDED BODY, METHOD FOR THE PRODUCTION THEREOF, MOLDABLE MIXTURE FOR THE PRODUCTION THEREOF AND METHOD FOR PRODUCING THIS MOLDABLE MIXTURE.

Country Status (6)

Country Link
EP (1) EP0457350B1 (en)
KR (1) KR0179371B1 (en)
AT (1) ATE129130T1 (en)
AU (1) AU638832B2 (en)
CA (1) CA2042845C (en)
DE (1) DE69113859T2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5328775A (en) * 1990-05-18 1994-07-12 Mitsubishi Materials Corporation Moldable mixture for use in the manufacturing of precious metal articles
JP3896181B2 (en) * 1997-01-30 2007-03-22 相田化学工業株式会社 Manufacturing method of precious metal products
DE19854965A1 (en) * 1998-12-02 2000-06-21 Christine Leins Multi-part jewellery object has several parts with inner part having four or more flat contact faces and with curved or facetted outside surface part
JP2001059103A (en) * 1999-08-19 2001-03-06 Injex Corp Production of metallic sintered body
EP1442811B1 (en) * 2001-09-28 2012-03-14 Mitsubishi Materials Corporation Silver clay containing silver powder
WO2006049831A1 (en) * 2004-10-14 2006-05-11 Tokusen U.S.A., Inc. Method of production of high purity silver particles
US8557217B2 (en) 2006-09-21 2013-10-15 Tokusen, U.S.A., Inc. Low temperature process for producing nano-sized titanium dioxide particles
DE102009017596B3 (en) * 2009-04-16 2010-11-11 Ami Doduco Gmbh Method of making a semi-finished product for Mokume Gane jewelry
CH701507A1 (en) * 2009-07-31 2011-01-31 Roth & Genta Haute Horlogerie Method of parts assembly in gold alloy.
ITMI20120331A1 (en) 2012-03-02 2013-09-03 Legor Group S P A SILVER-BASED ALLOY POWDER FOR MANUFACTURING OF 3-DIMENSIONAL METAL OBJECTS
JP6241227B2 (en) * 2013-11-28 2017-12-06 三菱マテリアル株式会社 Clay-like composition for precious metal sintered body
JP6241228B2 (en) * 2013-11-28 2017-12-06 三菱マテリアル株式会社 Clay-like molded body for precious metal sintered body formation
KR101386234B1 (en) * 2013-12-30 2014-04-17 이남득 Copper metal stone and manufacturing method thereof and make use accessory of this
FR3160602A1 (en) * 2024-03-27 2025-10-03 Van Cleef & Arpels SA Process for manufacturing a composite block used for the manufacture of a piece of jewelry or watchmaking

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052532A (en) * 1961-02-14 1962-09-04 Stephen D Stoddard Casting slips for fabrication of refractory metal ware
FR2158116A1 (en) * 1971-11-03 1973-06-15 Du Pont Gold powder prodn - for printed circuits
JPS6036354B2 (en) * 1979-07-02 1985-08-20 三菱マテリアル株式会社 Manufacturing method for metal composites for decorative parts
US4249955A (en) * 1980-01-07 1981-02-10 Kennametal Inc. Flowable composition adapted for sintering and method of making
US4369068A (en) * 1981-08-10 1983-01-18 Degussa Aktiengesellschaft Gold containing preparation for coating metallic parts
GB8409046D0 (en) * 1984-04-07 1984-05-16 Mixalloy Ltd Production of flat products in strip &c form
DE3841903A1 (en) * 1988-12-13 1990-06-21 Degussa Process for producing a decoration of rare metal

Also Published As

Publication number Publication date
EP0457350B1 (en) 1995-10-18
DE69113859T2 (en) 1996-04-18
EP0457350A1 (en) 1991-11-21
AU7709791A (en) 1991-11-21
KR0179371B1 (en) 1999-02-18
AU638832B2 (en) 1993-07-08
CA2042845A1 (en) 1991-11-19
CA2042845C (en) 1999-10-05
DE69113859D1 (en) 1995-11-23

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
EELA Cancelled due to lapse of time