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A kind of silver alloy and its method for preparing high-temperature transparent enamel-decorated silver ornaments

A silver alloy and alloy technology, applied in the field of silver alloy and its use in the preparation of high-temperature transparent enamel-inlaid silver jewelry, can solve problems such as improper selection of process methods and process parameters, unreasonable process settings, and poor performance of jewelry alloys. Achieve excellent high-temperature oxidation resistance, good gloss, and meet the requirements of mechanical properties

Active Publication Date: 2017-01-11
GUANGZHOU PANYU POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing enamel firing methods, due to the poor performance of the jewelry alloy used, the unreasonable process flow setting, improper selection of process methods and process parameters, the fired enamel has poor effect and cannot reach the grade of application.

Method used

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  • A kind of silver alloy and its method for preparing high-temperature transparent enamel-decorated silver ornaments
  • A kind of silver alloy and its method for preparing high-temperature transparent enamel-decorated silver ornaments
  • A kind of silver alloy and its method for preparing high-temperature transparent enamel-decorated silver ornaments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment is used for the silver alloy of enamel inlaid jewellery, and its composition comprises the following components by mass percentage: 94.39wt% silver, 2.43wt% copper, 2.35wt% zinc, 0.70wt% palladium, 0.074wt% silicon, 0.008wt% scandium, and the balance is unavoidable impurities.

[0038] The preparation method of silver alloy described in the present embodiment comprises the following steps:

[0039] 1) Weigh the following raw materials in mass percentage: 1.6wt% silver-scandium alloy (containing scandium 0.5wt%), 7wt% silver-palladium alloy (containing palladium 10wt%), 5wt% silver-copper alloy (containing copper 20wt%), 12wt% Silver-zinc alloy (containing 20wt% zinc), 1.5wt% copper-silicon alloy (containing 5wt% silicon), 72.9wt% pure silver;

[0040] 2) Melting in a vacuum induction furnace: Put the above-mentioned weighed raw materials into a graphite crucible, mix well, fill it tightly and close the furnace cover, evacuate to 5.2Pa, then fill with in...

Embodiment 2

[0042] The present embodiment is used for the silver alloy of enamel inlaid jewelry, and its composition comprises the following components by mass percentage: 94.20wt% silver, 2.40wt% copper, 2.98wt% zinc, 0.30wt% palladium, 0.053wt% silicon, 0.007wt% scandium, and the balance is unavoidable impurities.

[0043] The preparation method of silver alloy described in the present embodiment comprises the following steps:

[0044]1) Weigh the following raw materials in mass percentage: 1.5wt% silver-scandium alloy (containing scandium 0.5wt%), 3.1wt% silver-palladium alloy (containing palladium 10wt%), 12.5wt% silver-zinc alloy (containing zinc 20wt%), 1.1wt% copper-silicon alloy (containing 5wt% silicon), 2wt% copper-zinc alloy (containing 30wt% zinc), 81.8wt% pure silver;

[0045] 2) Melting in a vacuum induction furnace: put the above-mentioned weighed raw materials into a graphite crucible, mix well, fill it tightly and close the furnace cover, evacuate to 4.9Pa, and then fill...

Embodiment 3

[0047] This embodiment is used for the silver alloy of enamel inlaid jewellery, and its composition comprises the following components by mass percentage: 94.97wt% silver, 2.14wt% copper, 2.16wt% zinc, 0.60wt% palladium, 0.084wt% silicon, 0.007wt% scandium, and the balance is unavoidable impurities.

[0048] The preparation method of silver alloy described in the present embodiment comprises the following steps:

[0049] 1) Weigh the following raw materials in mass percentage: 1.5wt% silver-scandium alloy (containing scandium 0.5wt%), 6wt% silver-palladium alloy (containing palladium 10wt%), 2.6wt% silver-copper alloy (containing copper 20wt%), 11wt% % silver-zinc alloy (20wt% zinc), 1.7wt% copper-silicon alloy (5wt% silicon), 77.2wt% pure silver;

[0050] 2) Melting in a vacuum induction furnace: put the above-mentioned weighed raw materials into a graphite crucible, mix well, fill it tightly and close the furnace cover, evacuate to 5.3Pa, and then fill with industrial pure ...

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Abstract

The invention discloses a silver alloy and a method for preparing high-temperature transparent enamel decorating silver jewelry by using the silver alloy. The silver alloy comprises, by weight, 93%-95% of silver, and a little of copper, zinc, palladium, silicon and scandium. The method for preparing the high-temperature transparent enamel decorating silver jewelry comprises the steps that firstly, the silver alloy is made into a matrix base which is in a specific shape, the edge of the portion, fired with enamel, on the surface of the matrix base is provided with a flange, the corresponding portion on the surface of the matrix base is filled with a glaze, firing is carried out for 70s to 100s at the temperature ranging from 790 DEG C to 810 DEG C, the matrix base is taken out and cooled, and the high-temperature transparent enamel decorating silver jewelry can be obtained. According to the silver alloy and the technology method for preparing the high-temperature transparent enamel on the matrix base of the silver alloy, a fired enamel surface is high in transparency, good in glossiness and is firmly combined with the matrix base, after high-temperature firing is carried out for multiple times, the phenomenon of the surface chaps and folds cannot happen, and the requirement of inlay jewelry is met.

Description

technical field [0001] The invention belongs to the field of jewelry and metal technology, and relates to a silver alloy and a method for preparing high-temperature transparent enamel-inlaid silver jewelry. Background technique [0002] Enamel, also known as Fulang, Fulang, and blue, is made of mineral silicon, red lead, borax, feldspar, quartz and other raw materials mixed in appropriate proportions, and various colored metal oxides are added respectively, and are roasted and ground. After being crushed into powdered color materials, they are filled or painted on the body of the metal body according to the different methods of enamel technology, and then baked to become enamel products. High-temperature transparent enamel: It is enamel fired with high-temperature molten transparent glaze. In the traditional cloisonne process, enamel products fired with pure silver as the base can obtain better color and transparency, especially the blue glaze has a good firing effect, comm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C5/08C22C5/06C22C1/03
Inventor 袁军平王昶李卫陈绍兴卢焕洵申柯娅
Owner GUANGZHOU PANYU POLYTECHNIC