mardi 6 février 2007
How Gold Jewellery Is Made
I’ll give you this week a short summary of one of the four products described in the program. How gold jewellery is made, especially gold rings or wedding rings. The Egyptians were the first to use gold jewellery in 2500 B.C. to make them more attractive. The reason to wear it is still the same, but the process to make it has evolved and now only professionals work the gold. The process starts by measuring the diameter of the customer's finger. The worker will drill a hole through a square wax blok then he will reproduce the kind of ring that the customer wants at the same scale of the finished product. At this stage, the product looks like a real ring but it's made with wax and with a small stick of wax under the ring. After, they put the wax model in a bucket of special plaster then they apply a vacuum to get out the air. Next, they put the bucket in an oven at 1350 degree Fahrenheit to harden the plaster. Now, they melt the gold with other metals like nickel to get a stronger mixture. They introduce the melted metal to replace the wax in the plaster. They cool down the gold then they break the plaster. The casting at the moment is pretty rough, they file the excess of gold under the ring that was used to get the gold into the hard plaster. After, they grind and polish the ring with a few buffing wheels. Next the final step is to install the diamonds depending on the price of the ring and then they wash the golden ring with an ultrasonic bath.
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1 commentaire:
hi!! is Jesús!!. Hey! that's a very interesting program, I think... because not everybody can know about jewelry. It's good to learn new things everyday, and this is a good opportunity for that... thanks for the text... it's pretty good!!!!
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