A Platinum Hardening Process

A platinum and process technology, applied in the field of platinum hardening process, can solve problems such as small platinum, achieve the effect of improving hardness, ensuring sufficient hardening, and better hardening effect

Active Publication Date: 2016-05-18
SHENZHEN EDL JEWELRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the higher the purity of platinum, the lower its hardness. The application of high-purity platinum in jewelry is limited due to its low hardness. There are not many jewelry that can use thousand-pound platinum.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-9

[0011] The method of hardening platinum is as follows:

[0012] (1) Weigh sodium chloride, ammonium bifluoride and silicon carbide respectively, then mix sodium chloride, ammonium bifluoride and silicon carbide together, and stir manually with a stirring bar for more than 2 minutes to make sodium chloride, ammonium bifluoride and silicon carbide Preliminary mixing yields a preliminary mixture. Then put the preliminary mixture into a mixer and stir for 3-4 hours at a speed of 250-300 rpm to obtain a mixed powder.

[0013] (2) Take a stainless steel container for containing platinum, first lay a layer of mixed powder with a thickness greater than 5mm in the stainless steel container, then put platinum with a purity of more than 99.95% on the mixed powder, and then place it on the platinum Lay a layer of mixed powder with a thickness greater than 5mm, the purpose is to make the mixed powder fully bury the platinum, so that the outer surface of the platinum is fully covered by th...

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PUM

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Abstract

The invention relates to the technical field of platinum, and in particular relates to a platinum hardening process which comprises steps of baking mixture powder consisting of platinum, sodium chloride, ammonium bifluoride and silicon carbide, and subsequently boiling in water. By adopting the process, the hardness of platinum can be remarkably improved, and the Vickers hardness of platinum is increased to 175 from 54 before process. In the baking process, a container is shaken and oscillated at intervals, so that the surface of platinum comes into full contact with the powder, the surface of platinum can be sufficiently hardened, and the hardening effect is better.

Description

technical field [0001] The invention relates to the technical field of platinum processing, in particular to a platinum hardening process. Background technique [0002] Platinum, referred to as Pt, is a white precious metal. Its white luster is natural and will not fade. It can match any type of skin. It is known as the king of precious metals and is widely used in jewelry. With the improvement of people's living standards, people's pursuit of platinum jewelry has also increased, and people are increasingly pursuing the purity of platinum. However, the higher the purity of platinum, the lower its hardness. Due to the low hardness of high-purity platinum, its application in jewelry is limited, and there are not many jewelry that can use thousand-pound platinum. In particular, it is a technical problem in the industry to make thin and thin platinum jewelry with thousand-pound platinum. Contents of the invention [0003] The technical problem to be solved by the invention i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/14
Inventor 陈焕先
Owner SHENZHEN EDL JEWELRY
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