A kind of platinum hardener and preparation method thereof
A hardener and platinum technology, applied in the field of platinum hardener and its preparation, can solve the problems of small platinum and achieve the effects of improving hardness, low cost and simple preparation method
Active Publication Date: 2015-10-28
SHENZHEN EDL JEWELRY
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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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Experimental program
Comparison scheme
Effect test
Embodiment 1-9
[0009] The preparation method of platinum hardener is as follows:
[0010] (1) Weigh sodium chloride, ammonium bifluoride and silicon carbide respectively according to a certain weight ratio.
[0011] (2) Mix sodium chloride, ammonium bifluoride and silicon carbide together, and then manually stir with a stirring rod for more than 2 minutes to make preliminary mixing of sodium chloride, ammonium bifluoride and silicon carbide to obtain a preliminary mixture.
[0012] (3) Put the preliminary mixture into a mixer and stir for 3-4 hours at a speed of 250-300rpm to obtain a platinum hardener.
[0013] The consumption of each component of the platinum hardening agent of table 1 embodiment 1-9
[0014]
[0015] Example 8
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Abstract
The invention relates to the technical field of platinum processing and particularly relates to a platinum hardening agent and a preparation method thereof. The platinum hardening agent is composed of 25-35 parts of sodium chloride, 25-35 parts of ammonium hydrogen fluoride and 35-45 parts of silicon carbide. The preparation method comprises the steps of mixing sodium chloride, ammonium hydrogen fluoride and silicon carbide, and then, respectively placing the three mixed components into a stirrer to stir for 3-4h. The hardening agent provided by the invention is composed of sodium chloride, ammonium hydrogen fluoride and silicon carbide, so that the hardness of platinum can be remarkably enhanced, and the Vickers hardness of platinum is increased from 55 to 176; in addition, the hardening agent provided by the invention is low in cost, simple and easy in preparation method and convenient to popularize and apply.
Description
technical field [0001] The invention relates to the technical field of platinum processing, in particular to a platinum hardener and a preparation method thereof. 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 s...
Claims
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IPC IPC(8): C21D1/18
Inventor 陈焕先
Owner SHENZHEN EDL JEWELRY