发明名称 |
METHOD FOR MANUFACTURE OF THIN-WALLED HOLLOW JEWELRY ARTICLES OR JEWELRY ARTICLE PARTS FROM GOLD OR SILVER ALLOYS |
摘要 |
FIELD: manufacture of jewelry articles. SUBSTANCE: method involves applying tape made from mentioned alloy and having thickness of 0.14-0.16 mm on base in the form of metal wire by simultaneously drawing it through row of forming sleeves having gradually decreasing diameter; forming produced tubular construction for obtaining jewelry article or part of jewelry article; removing metal wire by etching it. Drawing process is performed at the rate of 20-100 cm/min and pressing force of 10-40 kg until thickness of mentioned alloy reaches 0.05-0.1 mm. Aluminum wire may be used as base. It is etched in 20-70% aqueous alkali solution at temperature of 50-80 C. Method allows hermetically sealed thin-walled construction with guaranteed precious metal purity to be produced. EFFECT: increased efficiency and improved quality of jewelry articles. 2 ex
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申请公布号 |
RU2147823(C1) |
申请公布日期 |
2000.04.27 |
申请号 |
RU19990115046 |
申请日期 |
1999.07.14 |
申请人 |
BAKHAREVA MARINA MIKHAJLOVNA;GORBUNOVA TAT'JANA ALEKSANDROVNA;GORODINSKIJ KONSTANTIN JAKOVLEVICH;DOKUCHAEVA GALINA ALEKSANDROVNA;LISTVIN DMITRIJ DMITRIEVICH;RETSEPTER IRINA VLADIMIROVNA;TIKHONOVA TAT'JANA MIKHAJLOVNA |
发明人 |
BAKHAREVA M.M.;GORBUNOVA T.A.;GORODINSKIJ K.JA.;DOKUCHAEVA G.A.;LISTVIN D.D.;RETSEPTER I.V.;TIKHONOVA T.M. |
分类号 |
A44C27/00;(IPC1-7):A44C27/00 |
主分类号 |
A44C27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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