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18 KT Gold Expansion Properties and memory
Thanks for all your help. There has been quite some effort in ensuring quality and in this last shipment there was an additional final inspection. With tourmeline having a piezioelectric quality maybe its package xrays that excite it to vibrate at some level.- NPHX
- Post #6
- Forum: Metal and Metallurgy engineering
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18 KT Gold Expansion Properties and memory
Thanks for the reply. I talked it over with the end client and they say microns is the measure that make the stone loose - unsurr how PPM would equate to a 53 degree celcius change in shipment. They also said the stones are tourmaline which too seem to have some piezioelectric and unique...- NPHX
- Post #3
- Forum: Metal and Metallurgy engineering
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18 KT Gold Expansion Properties and memory
Is it possible for 18kt jewelry shipments to damage stone settings as a result of being potentially shipped at -18.0 degrees C in the aircraft cargo hold. The theory is that diaomond mountings contract - gold may have no memory - and on arrival are loose. Can anyone comment if the theory is in...- NPHX
- Thread
- Replies: 6
- Forum: Metal and Metallurgy engineering
