DE602007001180D1 - A method for producing an alloy for decorative articles and alloy for decorative articles, which can be produced in particular by this method - Google Patents

A method for producing an alloy for decorative articles and alloy for decorative articles, which can be produced in particular by this method

Info

Publication number
DE602007001180D1
DE602007001180D1 DE602007001180T DE602007001180T DE602007001180D1 DE 602007001180 D1 DE602007001180 D1 DE 602007001180D1 DE 602007001180 T DE602007001180 T DE 602007001180T DE 602007001180 T DE602007001180 T DE 602007001180T DE 602007001180 D1 DE602007001180 D1 DE 602007001180D1
Authority
DE
Germany
Prior art keywords
alloy
amount
decorative articles
producing
polymer composition
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DE602007001180T
Other languages
German (de)
Inventor
Lorenzo Brunetti
Tomaso Neri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of DE602007001180D1 publication Critical patent/DE602007001180D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0094—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with organic materials as the main non-metallic constituent, e.g. resin

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Adornments (AREA)
  • Powder Metallurgy (AREA)

Abstract

Method for producing an alloy for ornamental articles, which envisages introducing, into the plasticization chamber of an extruder at a temperature of between 120 and 220 °C, an amount of a polymer composition and an amount of a metallic powder formed with one or more precious metals having particles with an average size of less than 0.5 micron in order to achieve thorough mixing between the amount of polymer composition in the liquid state and the amount of metallic powder by means of one or more screws provided with mixing segments; and then an extrusion and cutting step in order to obtain an intermediate product with a precious metal content to be treated during a subsequent forming step aimed at obtaining an ornamental article in the desired form.
DE602007001180T 2007-04-13 2007-04-13 A method for producing an alloy for decorative articles and alloy for decorative articles, which can be produced in particular by this method Active DE602007001180D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07425215A EP1918047B1 (en) 2007-04-13 2007-04-13 Method for producing an alloy for ornamental articles and alloy for ornamental articles which can be obtained in particular by means of this method

Publications (1)

Publication Number Publication Date
DE602007001180D1 true DE602007001180D1 (en) 2009-07-09

Family

ID=38640097

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007001180T Active DE602007001180D1 (en) 2007-04-13 2007-04-13 A method for producing an alloy for decorative articles and alloy for decorative articles, which can be produced in particular by this method

Country Status (3)

Country Link
EP (1) EP1918047B1 (en)
AT (1) ATE432138T1 (en)
DE (1) DE602007001180D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH704429B1 (en) 2011-01-26 2016-03-31 Ecometal Sa Composite material for the production of ornamental articles and procedure for the production of an ornamental article.
WO2015155594A1 (en) * 2014-04-10 2015-10-15 Artitec S.R.L. Process for producing a composite material for decorative articles and composite material obtained by means of such process
EP3763842B1 (en) 2019-07-11 2022-09-07 Richemont International S.A. Composite material made of gold
EP3785823A1 (en) 2019-08-30 2021-03-03 ETH Zurich Light gold

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599399A (en) 1977-05-13 1981-09-30 Johnson Matthey Co Ltd Production of metallic articles
DE3135034C2 (en) 1981-09-04 1984-02-23 Degussa Ag, 6000 Frankfurt Material for jewelry and articles of daily use and process for its manufacture
DE4412715C1 (en) 1994-04-13 1995-08-17 Degussa Noble metal material free from allergenic heavy metal for making jewellery

Also Published As

Publication number Publication date
ATE432138T1 (en) 2009-06-15
EP1918047B1 (en) 2009-05-27
EP1918047A1 (en) 2008-05-07

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Legal Events

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8364 No opposition during term of opposition