FR2708837A1 - Process for the production of a composite wire intended for the production of hollow jewelry. - Google Patents

Process for the production of a composite wire intended for the production of hollow jewelry.

Info

Publication number
FR2708837A1
FR2708837A1 FR9309857A FR9309857A FR2708837A1 FR 2708837 A1 FR2708837 A1 FR 2708837A1 FR 9309857 A FR9309857 A FR 9309857A FR 9309857 A FR9309857 A FR 9309857A FR 2708837 A1 FR2708837 A1 FR 2708837A1
Authority
FR
France
Prior art keywords
production
tube
bar
composite wire
circular cross
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.)
Granted
Application number
FR9309857A
Other languages
French (fr)
Other versions
FR2708837B1 (en
Inventor
Malie Jacques
D Harlingue Eric
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.)
LOUYOT COMPTOIR LYON ALEMAND
Original Assignee
LOUYOT COMPTOIR LYON ALEMAND
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 LOUYOT COMPTOIR LYON ALEMAND filed Critical LOUYOT COMPTOIR LYON ALEMAND
Priority to FR9309857A priority Critical patent/FR2708837B1/en
Priority to EP94401812A priority patent/EP0638256A1/en
Priority to FI943698A priority patent/FI943698A/en
Publication of FR2708837A1 publication Critical patent/FR2708837A1/en
Application granted granted Critical
Publication of FR2708837B1 publication Critical patent/FR2708837B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Metal Extraction Processes (AREA)
  • Adornments (AREA)

Abstract

La présente invention a pour objet un nouveau procédé pour la fabrication d'un fil composite destiné à la réalisation de bijoux creux. Selon l'invention, ce procédé est caractérisé en ce qu'il consiste: - à introduire un barreau cylindrique à section transversale sensiblement circulaire constitué d'un métal commun ou d'un alliage de métaux communs à l'intérieur d'un tube constitué d'un alliage à base de métal précieux de préférence obtenu par coulée continue et éventuellement calibré par étirage, ledit tube ayant un diamètre intérieur supérieur au diamètre extérieur dudit barreau; - à solidariser entre eux ledit tube et ledit barreau; - à soumettre l'assemblage ainsi constitué à un étirage ou tréfilage, pour lui conférer une section transversale circulaire; - à réaliser sur cet assemblage une rainure longitudinale, de préférence lors de la dernière passe d'étirage ou de tréfilage par exemple par scalpage; et - éventuellement à soumettre ladite rainure à une attaque chimique, afin d'en faciliter le repérage visuel. Ce procédé permet d'obtenir des fils de très grande longueur, comportant une épaisseur régulière de revêtement en alliages à base de métal précieux.The present invention relates to a new process for the manufacture of a composite wire intended for the production of hollow jewelry. According to the invention, this method is characterized in that it consists in: - introducing a cylindrical bar with a substantially circular cross section made of a base metal or of a base metal alloy inside a tube formed of a precious metal-based alloy preferably obtained by continuous casting and optionally calibrated by drawing, said tube having an inside diameter greater than the outside diameter of said bar; - joining said tube and said bar together; - Subjecting the assembly thus formed to drawing or drawing, to give it a circular cross section; - To produce on this assembly a longitudinal groove, preferably during the last stretching or drawing pass, for example by scalping; and - optionally subjecting said groove to a chemical attack, in order to facilitate visual identification. This process makes it possible to obtain very long threads, comprising a regular coating thickness of alloys based on precious metal.

FR9309857A 1993-08-11 1993-08-11 Process for the production of a composite wire intended for the production of hollow jewelry. Expired - Fee Related FR2708837B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR9309857A FR2708837B1 (en) 1993-08-11 1993-08-11 Process for the production of a composite wire intended for the production of hollow jewelry.
EP94401812A EP0638256A1 (en) 1993-08-11 1994-08-05 Method for making a composite wire suitable for manufacturing hollow jewellery
FI943698A FI943698A (en) 1993-08-11 1994-08-10 Process for making a fiber composition intended to provide hollow ornaments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9309857A FR2708837B1 (en) 1993-08-11 1993-08-11 Process for the production of a composite wire intended for the production of hollow jewelry.

Publications (2)

Publication Number Publication Date
FR2708837A1 true FR2708837A1 (en) 1995-02-17
FR2708837B1 FR2708837B1 (en) 1995-11-10

Family

ID=9450116

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9309857A Expired - Fee Related FR2708837B1 (en) 1993-08-11 1993-08-11 Process for the production of a composite wire intended for the production of hollow jewelry.

Country Status (3)

Country Link
EP (1) EP0638256A1 (en)
FI (1) FI943698A (en)
FR (1) FR2708837B1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2121514B1 (en) * 1995-05-31 1999-05-16 Morini Gabriele PROCEDURE FOR THE PRODUCTION OF OPEN TUBULAR PROFILES OF NOBLE METAL.
NL1000789C2 (en) * 1995-07-13 1997-01-14 Unity Industry B V Bar-shaped ornament comprising precious-metal tube
IT1302996B1 (en) * 1997-07-04 2000-10-18 Cento Group Spa COMPOSITE WIRE FOR REALIZING SEMI-FINISHED WORKS TO BE SUBJECTED TO EMPTYING PROCESSES IN THE GOLD SECTOR
IT1304788B1 (en) * 1998-12-07 2001-03-29 Ezio Ghiandai NOT PRECIOUS ALLOY WITH WHICH TO REALIZE THE SUPPORT SOUL OF ARTICLES IN PRECIOUS METAL INTERNALLY CABLES
IT1305067B1 (en) * 1998-12-29 2001-04-10 Target S R L ORNAMENTAL ELEMENT FOR TUBULAR DEVELOPMENT OF USE IN THE GOLD JEWELERY SECTOR, IN PARTICULAR FOR THE CREATION OF NECKLACES AND
ITAR20020023A1 (en) 2002-06-25 2003-12-29 Orocinque S P A PROCEDURE FOR THE PRODUCTION OF ANIMATED WIRE OR PLATE FOR THE PRODUCTION OF TWO-COLOR ORNAMENTAL ITEMS AND ARTICLES SO MADE
BG66005B1 (en) * 2006-12-29 2010-10-29 "Касил" Еоод Method for the production of constituent elements intended for the manufacture of hollow jewels, and device for the realization thereof
BG66006B1 (en) * 2007-06-14 2010-10-29 Тодор КУЗМОВ Technology for the production of hollow bracelets and chains and other hollow jewelry
EP2050350A1 (en) * 2007-10-15 2009-04-22 Silmar S.p.A. Procedure for the production of jewellery items, in particular ropes or chains, and items obtainable through such procedure
ITFI20120134A1 (en) * 2012-06-27 2013-12-28 Unoaerre Ind S P A "METHOD FOR THE PRODUCTION OF METAL NOBLE OR PRECIOUS METAL ARTICLES"
ITUA20161828A1 (en) 2016-03-18 2017-09-18 Nuovi Gioielli Srl PROCEDURE FOR REALIZING A ARTICLE OF JEWELERY, IN PARTICULAR A BRACELET, AND ARTICLES OF JEWELERY OBTAINED THROUGH THIS PROCEDURE
IT201800005009A1 (en) * 2018-05-02 2019-11-02 METHOD OF MAKING A TWO-PHASE METAL WIRE, IN PARTICULAR IN A GOLD AND SILVER BASED ALLOY AND A SEMI-FINISHED TUBULAR ELEMENT
WO2022090890A1 (en) * 2020-10-27 2022-05-05 Del Pia Srl Hollow metal wire with multiple metal components, particularly for goldsmithing, silversmithing and custode jewellery, and its implementation process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US921722A (en) * 1908-06-11 1909-05-18 George U Meyer Method of making ornamental blanks.
FR735423A (en) * 1931-03-19 1932-11-08 Process for manufacturing seamless pipes and other tubular parts
DE832734C (en) * 1950-01-10 1952-02-28 G Rau Doublefabrik For the production of hollow gold goods, a gold-coated molding with a core made of base metal
GB2042943A (en) * 1979-02-20 1980-10-01 Gibbons K T Composite Material of Precious Metals
FR2635953A1 (en) * 1988-09-05 1990-03-09 Mgz Spa METHOD FOR MANUFACTURING ARTICLES OF ORNAMENT OF PEOPLE AND OBJECTS USING TWO-COMPONENT FILIFORM ELEMENT AND ARTICLES THUS OBTAINED, SUCH AS CHAINS, NECKLACES OR BRACELETS

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US921722A (en) * 1908-06-11 1909-05-18 George U Meyer Method of making ornamental blanks.
FR735423A (en) * 1931-03-19 1932-11-08 Process for manufacturing seamless pipes and other tubular parts
DE832734C (en) * 1950-01-10 1952-02-28 G Rau Doublefabrik For the production of hollow gold goods, a gold-coated molding with a core made of base metal
GB2042943A (en) * 1979-02-20 1980-10-01 Gibbons K T Composite Material of Precious Metals
FR2635953A1 (en) * 1988-09-05 1990-03-09 Mgz Spa METHOD FOR MANUFACTURING ARTICLES OF ORNAMENT OF PEOPLE AND OBJECTS USING TWO-COMPONENT FILIFORM ELEMENT AND ARTICLES THUS OBTAINED, SUCH AS CHAINS, NECKLACES OR BRACELETS

Also Published As

Publication number Publication date
FR2708837B1 (en) 1995-11-10
FI943698A0 (en) 1994-08-10
FI943698A (en) 1995-02-12
EP0638256A1 (en) 1995-02-15

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Legal Events

Date Code Title Description
ST Notification of lapse