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Volume 11 Issue 1
Mar.  2009
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YUAN Jun-ping, WANG Chang, HUANG Guo-he, LI Jia, CHEN Yan-hong. Analysis on Loss of Precious Metals in Jewelry Factory[J]. Journal of Gems & Gemmology, 2009, 11(1): 42-44,59.
Citation: YUAN Jun-ping, WANG Chang, HUANG Guo-he, LI Jia, CHEN Yan-hong. Analysis on Loss of Precious Metals in Jewelry Factory[J]. Journal of Gems & Gemmology, 2009, 11(1): 42-44,59.
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Analysis on Loss of Precious Metals in Jewelry Factory

  • 1. Jewelry Institute of Guangzhou Panyu Polytechnic, Guangzhou 511483, China;

  • 2. Guangzhou Huangting Jewelry(International) Co. Ltd., Guangzhou 511483, China

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  • Received Date: October 03, 2008
  • Revised Date: January 14, 2009
    Graphical Abstract
    • Abstract
  • It is inevitable that there is loss of precious metals during the jewelry manufacturing procedure, and the rate of loss would greatly affect the efficiency of the factory.In order to control the rate of loss, it is necessary to analyse what causes the loss of precious metals.Through the extensive survey of the loss in the jewelry manufacturing procedure, it is found that there are many reasons causing the loss, which could be summarized as three main aspects in this paper.The first one is caused by the manufacturing process, which mainly happens in the processes such as melting, pouring, grinding, polishing, etc.The second one is caused by the deficit of precious metals for the lowest karat requirement, and the third one is caused by material losing or stealing.The loss reasons of precious metals are analysed in order to establish a foundation for the jewelry factories to set up the reliable material management rules, the perfect recovery system and the tight precaution system.
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    • References (5)
  • [1]
    杨廷宗, 廖宗廷.饰用贵金属材料及工艺学[M].上海:同济大学出版社, 2002.
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    Dave Schneller.The recovery of precious metals from used casting invest ment[A].The Santa Fe Symposiumon JewelryManufacturing Technology[C].New Mexico:Met-Chem Research Publishing Co, 1987.283-336.
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