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Silver alloy field coating material and preparation process thereof

A production process and technology of silver alloy, applied in the field of silver alloy filling material and its production process, can solve the problem of oxidation resistance, poor hardening, insufficient gloss, poor high temperature resistance and corrosion resistance of silver alloy jewelry, etc. problems, to achieve the effect of improving high temperature resistance and corrosion resistance, low melting point and increasing strength

Inactive Publication Date: 2014-04-09
邳州市滨河中小企业管理服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The most widely used jewelry in the market is 925 silver, which is added with 7.5% copper as a joint, but the anti-oxidation and hardening of silver alloy jewelry are not very good.
Other filling materials currently added include nickel, manganese, cobalt, etc., but the overall high temperature resistance and corrosion resistance of the added silver alloy are poor, and the gloss is not enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The composition of a silver alloy filling material is: copper: 35.0 parts, zinc: 10.0 parts, boron: 0.8 parts, aluminum: 0.1 parts, chromium: 0.01 parts, gallium: 0.5 parts, indium: 0.1 parts, nickel: 0.5 parts, magnesium : 0.5 parts.

[0020] The manufacturing process of this silver alloy filling material is as follows:

[0021] 1) The ratio by weight is: copper: 35.0 parts, zinc: 10.0 parts, boron: 0.8 parts, aluminum: 0.1 parts, chromium 0.01 parts, gallium: 0.5 parts, the raw materials are mixed and put into a vacuum furnace for high-temperature melting, and the melting temperature For: 900 ℃, melting time: 6h;

[0022] 2) Take out the ingot smelted in step 1 and put it into a cooler for cooling. The cooling temperature is -50°C and the cooling time is 4 hours;

[0023] 3) Put the ingot cooled in step 2 into a vacuum melting furnace, and at the same time add 0.5 parts by weight of magnesium, the melting temperature is 700°C, and the melting time is 7 hours;

[00...

Embodiment 2

[0031] The composition of a silver alloy filling material is:

[0032] Copper: 65.0 parts, zinc: 40.0 parts, boron: 3.0 parts, aluminum: 5.0 parts, chromium: 0.1 parts, gallium: 3.5 parts, indium: 2.5 parts, nickel: 4.5 parts, magnesium: 3.5 parts.

[0033] The manufacturing process of this silver alloy filling material is as follows:

[0034] 1) The ratio by weight is: copper: 65.0 parts, zinc: 40.0 parts, boron: 3.0 parts, aluminum: 5.0 parts, chromium: 0.1 parts, gallium: 3.5 parts, the raw materials are mixed and put into a vacuum furnace for high temperature melting, melting The temperature is: 1200°C, the melting time is: 4h;

[0035] 2) Take out the ingot smelted in step 1 and put it into the cooler for cooling. The cooling temperature is -35°C and the cooling time is 4 hours;

[0036] 3) Put the ingot cooled in step 2 into a vacuum melting furnace, add 3.5 parts of magnesium by weight at the same time, the melting temperature is 1000°C, and the melting time is 5 hour...

Embodiment 3

[0044] The composition of a silver alloy filling material is:

[0045] Copper: 50.0 parts, zinc: 25.0 parts, boron: 2.0 parts, aluminum: 2.5 parts, chromium: 0.08 parts, gallium: 2.5 parts, indium: 1.0 parts, nickel: 2.3 parts, magnesium: 1.8 parts.

[0046] The manufacturing process of this silver alloy filling material is as follows:

[0047] 1) Mix the raw materials in proportions by weight: copper: 50.0 parts, zinc: 25.0 parts, boron: 2.0 parts, aluminum: 2.5 parts, chromium: 0.08 parts, gallium: 2.5 parts and put them into a vacuum furnace for high-temperature melting. For: 1000 ℃, melting time: 4h;

[0048] 2) Take out the ingot smelted in step 1 and put it into a cooler for cooling. The cooling temperature is -30°C and the cooling time is 4 hours;

[0049] 3) Put the ingot cooled in step 2 into a vacuum melting furnace, add 1.8 parts of magnesium by weight at the same time, the melting temperature is 950°C, and the melting time is 6 hours;

[0050] 4) Take out the in...

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Abstract

The invention discloses a silver alloy field coating material and a preparation process thereof. The silver alloy field coating material is prepared from the following components in parts by weight: 35.0-65.0 parts of copper, 10.0-40.0 parts of zinc, 0.8-3.0 parts of boron, 0.1-5.0 parts of aluminum, 0.01-0.1 part of chromium, 0.5-3.5 parts of gallium, 0.1-2.5 parts of indium, 0.5-4.5 parts of nickel and 0.5-3.5 parts of magnesium. The strength, hardness and lustrousness of silver alloy are improved by using the silver alloy field coating material; due to the addition of the alloy components, the melting point of the silver alloy is lowered, and the high temperature resistance and corrosion resistance of the silver alloy are improved.

Description

technical field [0001] The invention relates to a silver alloy filling material and a manufacturing process thereof. Background technique [0002] 925 silver, the most widely used jewelry in the market, is added with 7.5% copper as a filling, but the anti-oxidation and hardening of silver alloy jewelry are not very good. Other filling materials currently added include nickel, manganese, cobalt, etc., but the overall high temperature resistance and corrosion resistance of the added silver alloy are poor, and the gloss is not enough. Contents of the invention [0003] The object of the present invention is to provide a silver alloy filling material and its manufacturing process. [0004] A silver alloy joint filling material is characterized in that the composition by weight ratio is: [0005] Copper: 35.0-65.0 parts, zinc: 10.0-40.0 parts, boron: 0.8-3.0 parts, aluminum: 0.1-5.0 parts, chromium 0.01-0.1 parts, gallium: 0.5-3.5 parts, indium: 0.1-2.5 parts, nickel: 0.5-4....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04C22C30/06C22C1/02
Inventor 张宁许星乾
Owner 邳州市滨河中小企业管理服务有限公司