阅读说明：本技术 一种抗氧化黑金与黑银的制备方法 (Preparation method of antioxidant black gold and black silver ) 是由 李玉颖 张钰玺 于 2020-06-10 设计创作，主要内容包括：本发明公开了一种抗氧化黑金与黑银的制备方法,包括如下步骤：S1：制作金或银金属片材；S2：放入丙酮溶液中浸泡再超声清洗；S3：拉直线纹路；S4：将二氧化钛,锆英石,氯苯酚,陶土粉末,珊瑚角质,纳米碳化硅,碳粉充分燃烧混合为混合物；S5：混合物放入酒精中浸泡；S6：风干后,加热融化滴在金属片材上,并打磨抛光；S7：放置于密封环境内,抽出一部分空气,并注入氢气体,偏置电压设为1.0kV以上且2kV以下,使金属片材的温度在600℃以下；S8：低真空泵设定在200Pa以下,释放部分低气压,输入氩气及硅粉混合的气体；S9：产生等离子弧；S10：使用频率在1200Hz以上的直流脉冲电压强化附着金属片材上。本发明制备出的黑金与黑银能保证真正的不褪色及抗氧化。(The invention discloses a preparation method of antioxidant black gold and black silver, which comprises the following steps: s1: manufacturing a gold or silver metal sheet; s2: soaking in acetone solution and ultrasonic cleaning; s3: drawing straight lines; s4: fully burning and mixing titanium dioxide, zirconite, chlorophenol, pottery clay powder, coral cutin, nano silicon carbide and carbon powder to obtain a mixture; s5: soaking the mixture in alcohol; s6: after air drying, heating to melt and dripping on the metal sheet, and grinding and polishing; s7: placing in a sealed environment, extracting a part of air, and injecting hydrogen gas, wherein the bias voltage is set to be more than 1.0kV and less than 2kV, so that the temperature of the metal sheet is below 600 ℃; s8: setting a low vacuum pump below 200Pa, releasing part of low pressure, and inputting a mixed gas of argon and silicon powder; s9: generating a plasma arc; s10: the metal sheet is reinforced and adhered by using direct current pulse voltage with frequency of over 1200 Hz. The black gold and the black silver prepared by the method can ensure real fastness and oxidation resistance.)

1. The preparation method of the antioxidant black gold and black silver is characterized by comprising the following steps:

s1: manufacturing a gold or silver metal sheet;

s2: soaking the metal sheet in acetone solution for 2-3 min and cleaning in an ultrasonic cleaner;

s3: drawing straight lines on the cleaned metal sheet by using a nicking tool or a chisel tool;

s4: fully burning and mixing titanium dioxide, zirconite, chlorophenol, pottery clay powder, coral cutin, nano silicon carbide and carbon powder to obtain a mixture;

s5: soaking the mixture in alcohol with concentration of at least 85% for 15 min, taking out, and air drying;

s6: after air drying, clamping by using tweezers, heating by using a fire gun until the materials are molten and drop down, dropping the materials on the metal sheet with the linear grains, and polishing;

s7: placing the polished metal sheet in a sealing environment, pumping out a part of air, and injecting hydrogen gas to enable the pressure of the gas in the sealing environment to be more than 0.2Pa and less than 2.5 Pa; a power generation device with a triode is also arranged in the sealed environment, the bias voltage of the power generation device is set to be more than 1.0kV and less than 2kV, and the temperature of the metal sheet is enabled to be less than 600 ℃;

s8: setting a roughing pump below 200Pa, releasing part of the low pressure in the sealed environment through the roughing pump, and then inputting 0.35L of argon gas and 0.3122g of mixed gas of silicon powder into the sealed environment;

s9: low-voltage arc discharge to generate plasma arc on the metal sheet;

s10: the metal sheet is reinforced and adhered by using direct current pulse voltage with frequency of over 1200 Hz.

2. The method according to claim 1, wherein the metal sheet in step S1 is pure gold.

3. The method of claim 1, wherein the metal sheet in step S1 is 18K, and is prepared by mixing pure gold with a mass fraction of 75%, palladium gold and platinum with a mass fraction of 20%, and zirconium metal with a mass fraction of 5%.

4. The method of claim 1, wherein the metal sheet in step S1 is 14K, which is obtained by mixing 58.5% pure gold, 35% palladium gold and platinum gold, 5% zirconium metal, and 1.5% zinc metal.

5. The method of claim 1, wherein the metal sheet in step S1 is made by mixing 92.5% silver and 7.5% brass.

6. The method of claim 1, wherein the metal sheet in step S1 is made by mixing 99.9% by weight of silver and 0.01% by weight of brass.

7. The method of claim 1, wherein the alcohol concentration in step S5 is 85% to 95%.

8. The method for preparing oxidation-resistant black gold and black silver according to claim 1, wherein in step S4, the mass percentages of the components are as follows: 11 percent of titanium dioxide, 7 percent of zircon, 0.6 percent of chlorophenol, 78 percent of pottery clay powder, 1.75 percent of coral cutin, 0.35 percent of nano silicon carbide and 1.3 percent of carbon powder.

Technical Field

The invention relates to the technical field of jewelry processes and metal manufacturing processes. More specifically, the invention relates to a preparation method of antioxidant black gold and black silver.

Background

The oxidation resisting technology is developed in other fields except the jewelry industry, basically the existing oxidation resisting technology is used for scientific research and furniture building materials, the traditional jewelry industry does not have oxidation resisting black gold and black silver on the market at present, and the existing oxidation resisting technology is only known to be plating treatment, one of the reasons is the particularity and the unique stability of the gold and silver materials, so that the gold and silver materials are not stored for a long time after being plated.

Disclosure of Invention

The invention aims to provide a preparation method of antioxidant black gold and black silver, and the prepared black gold and black silver can ensure true fastness and oxidation resistance.

To achieve these objects and other advantages in accordance with the present invention, there is provided a method for preparing oxidation resistant black gold and black silver, comprising the steps of:

s1: manufacturing a gold or silver metal sheet;

s2: soaking the metal sheet in acetone solution for 2-3 min and cleaning in an ultrasonic cleaner;

s3: drawing straight lines on the cleaned metal sheet by using a nicking tool or a chisel tool;

s4: fully burning and mixing titanium dioxide, zirconite, chlorophenol, pottery clay powder, coral cutin, nano silicon carbide and carbon powder to obtain a mixture;

s5: soaking the mixture in alcohol with concentration of at least 85% for 15 min, taking out, and air drying;

s6: after air drying, clamping by using tweezers, heating by using a fire gun until the materials are molten and drop down, dropping the materials on the metal sheet with the linear grains, and polishing;

s7: placing the polished metal sheet in a sealing environment, pumping out a part of air, and injecting hydrogen gas to enable the pressure of the gas in the sealing environment to be more than 0.2Pa and less than 2.5 Pa; a power generation device with a triode is also arranged in the sealed environment, the bias voltage of the power generation device is set to be more than 1.0kV and less than 2kV, and the temperature of the metal sheet is enabled to be less than 600 ℃;

s8: setting a roughing pump below 200Pa, releasing part of the low pressure in the sealed environment by the roughing pump, and then feeding a gas of a mixture of 0.35L of argon and 0.3122g of silicon powder into the sealed environment;

s9: low-voltage arc discharge to generate plasma arc on the metal sheet;

s10: the metal sheet is reinforced and adhered by using direct current pulse voltage with frequency of over 1200 Hz.

Preferably, the metal sheet in step S1 is pure gold.

Preferably, the metal sheet in step S1 is 18K, which is obtained by mixing pure gold with a mass fraction of 75%, palladium gold and platinum with a mass fraction of 20%, and zirconium metal with a mass fraction of 5%.

Preferably, the metal sheet in the step S1 is 14K, which is obtained by mixing 58.5 mass% pure gold, 35 mass% palladium gold and platinum gold, 5 mass% zirconium metal, and 1.5 mass% zinc metal.

Preferably, the metal sheet in step S1 is formed by mixing silver with a mass fraction of 92.5% and brass with a mass fraction of 7.5%.

Preferably, the metal sheet in step S1 is obtained by mixing 99.9% by mass of silver and 0.01% by mass of brass.

Preferably, the alcohol concentration in step S5 is 85% to 95%.

Preferably, in the step S4, the mass percentages of the components are as follows: 11 percent of titanium dioxide, 7 percent of zircon, 0.6 percent of chlorophenol, 78 percent of pottery clay powder, 1.75 percent of coral cutin, 0.35 percent of nano silicon carbide and 1.3 percent of carbon powder.

The invention at least comprises the following beneficial effects:

the preparation method of the oxidation-resistant black gold and black silver is a special method, each step, the use process and the operation process of each material and the like are obtained uniquely, one step of slightly changing a proportion or reducing the change affects the final oxidation-resistant black gold and black silver effects, or the black gold or black silver cannot be manufactured, or the manufactured black gold and black silver cannot really achieve the effects of fastness, oxidation resistance, beating resistance and scratch resistance. At present, the whole industry has no real fadeless and oxidation-resistant black gold and black silver preparation process, so the preparation method provided by the application can lead the development of the whole industry.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Detailed Description

The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.

It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the illustrated embodiments, are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.