Silver gold sand spraying process

Abstract

The invention discloses a silver gold sand spraying technology, and belongs to the technical field of precious metal processing, a silver blank and a gold sand layer are included, the gold sand layer adopts gold sand particles, the gold sand particles of the gold sand layer are evenly attached to the surface of a silver base layer to form a colorful glittering effect, and the gold sand particles of the gold sand layer are partially embedded into the surface of the silver base layer to form a glittering effect. The attaching and wrapping stability of the gold sand particles is improved, and the gold sand particles partially protrude out of the surface of the silver blank. According to the silver gold sand spraying process, effective combination of the silver blank and the gold sand is achieved by spraying the gold sand on the surface of the heated and softened silver blank, specific needed styles can be formed on the surface of the silver blank by adjusting the sand grain size of the sprayed gold sand and the spraying area, decoration patterns are diversified and extremely individualized, the charming flickering feeling can be shown under light, and the decoration effect is good. Therefore, the whole product is more attractive and has a colorful glittering effect, and the aesthetic property of the gold and silver ornament is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of precious metal processing, in particular to a silver gold sand spraying process. Background Art

[0002] Gold and silver products are a unique type of precious metal products. Their characteristics lie in the ingenious combination of gold and silver, which not only shows the luxurious luster of gold, but also retains the warm texture of silver. This craftsmanship ingeniously combines the luxury of gold and the warmth of silver, creating a jewelry style that is both luxurious and low-key. From the perspective of material composition, the outer layer of gold and silver products is shining high-purity gold, while the inner layer is solid sterling silver or high-purity silver. This combination not only makes the jewelry look more gorgeous, but also increases its durability, retaining the characteristic of gold that is not easy to oxidize and discolor. It does not require excessive maintenance for daily wear, and can meet consumers' dual needs for beauty and practicality.

[0003] Gold and silver processing is to cover a layer of gold on a silver base material to give the product a higher value and aesthetics. Traditional gold and silver craftsmanship mainly includes electroplating, hot pressing and manual inlay. However, these methods have some problems, such as electroplating easily leads to a thin and uneven gold layer, hot pressing may affect the original properties of gold and silver due to high temperature, and manual inlay is time-consuming, labor-intensive and costly.

[0004] The current gold and silver jewelry has fixed patterns, is monotonous, lacks individuality, and has no dazzling and shiny effects. It is not aesthetically pleasing and has certain limitations. Summary of the invention

[0005] The purpose of the present invention is to provide a silver gold sand spraying process to solve the problem raised by the above background technology that the patterns of gold and silver products on the market are fixed, monotonous, lack of individuality, and have no colorful and shining effect.

[0006] To achieve the above object, the present invention provides the following technical solution: a gold and silver product, comprising a silver blank and a gold sand layer, wherein the gold sand layer is made of gold sand particles, and the gold sand particles of the gold sand layer are uniformly attached to the surface of the silver base layer to form a colorful and shining effect;

[0007] Further preferably, the gold sand particles of the gold sand layer are partially embedded in the surface of the silver base layer to improve the adhesion and wrapping stability of the gold sand particles, and the gold sand particles partially protrude from the surface of the silver blank.

[0008] A silver gold-spraying process comprises the following steps:

[0009] The first step is to pre-treat the silver blank, process the silver blank into the required shape, and then pre-treat the surface of the silver blank to remove the oxide layer by grinding and polishing to ensure that the gold sand layer can be firmly attached to the base material to avoid subsequent peeling and falling off of the gold sand;

[0010] The second step is to pre-treat the gold sand and screen the gold sand using a screen to remove smaller gold sand particles to ensure that the gold sand particles are uniform in size;

[0011] The third step is to heat the silver blank. Use a high temperature flame of 900℃-1000℃ to heat the surface of the silver blank until it softens but does not melt. At the same time, ensure that the overall shape of the silver blank remains intact, so that the subsequent gold sand can impact and embed into the softened layer of the silver blank, and ensure that the gold sand adheres to the outside of the silver blank.

[0012] The fourth step is to spray gold sand. Spray or sprinkle the gold sand on the surface of the heated silver blank, and continue to heat the silver blank to ensure that the surface of the silver blank remains softened. Then press the gold sand with a tool to ensure that the gold sand is fully wrapped.

[0013] The fifth step is cooling and shaping, which is to cool the silver blank after spraying gold sand to room temperature to achieve overall shaping;

[0014] The sixth step is grinding and polishing. Fine grinding is done to remove defects and unevenness on the product surface, fully expose the gold sand, and improve the brightness of the product surface.

[0015] Further preferably, the sieve adopts 20-120 meshes to ensure that the particle size of the gold sand remains uniform.

[0016] Further preferably, the gold sand is evenly sprayed onto the surface of the heated silver blank using a nozzle.

[0017] Further preferably, the cooling and shaping is carried out by air cooling and water cooling, and the wind speed of the air cooling is limited to a low wind speed to avoid affecting the adhesion stability and position accuracy of the gold sand.

[0018] Compared with the prior art, the invention has the following beneficial effects: the silver gold sand spraying process realizes the wrapping of the silver blank by spraying gold sand on the surface of the heated and softened silver blank, realizes the effective combination of the silver blank and the gold sand, and can form a specific required style on the surface of the silver blank by adjusting the sand grain size of the gold sand spraying and the spraying area. The ornaments have various patterns and are highly personalized. They will present a charming glittering feeling under the light, making the whole product more eye-catching, with a colorful and shining effect, and effectively improving the aesthetics of the gold and silver ornaments;

[0019] 1. Gold sand spraying can form a fine and uniform gold sand effect on the surface of gold and silver products. This effect will present a charming glittering feeling under the light, making the whole product more eye-catching. The particle size and distribution of gold sand can be controlled by adjusting the sandblasting process parameters to meet the visual effects needs of different customers;

[0020] 2. Gold sand spraying can change the texture of the surface of gold and silver products, transforming it from the original smooth state to a surface with fine grains. This change in texture not only increases the layering of the product, but also makes it more unique and personalized. Through gold sand spraying, the surface of gold and silver products can present a frosted or matte effect, which is softer to the touch and improves the overall texture of the product.

[0021] 3. Gold sand spraying forms a layer of tiny gold sand particles on the surface of gold and silver products. This layer of particles can increase the wear resistance of the product to a certain extent. When the product is rubbed or scratched, the gold sand particle layer can disperse and alleviate the impact of external forces on the surface of the product, thereby extending the service life of the product.

[0022] 4. Pre-treating the silver blank and gold sand before spraying gold sand can improve the surface smoothness of the silver blank and gold sand, avoid stains between the two after spraying and affecting the adhesion, and the silver blank after heating and softening can be dented after the impact of gold sand spraying, so that the gold sand can be stably embedded in the surface of the silver blank, so that the silver blank and gold sand are tightly and seamlessly combined, improving the material bonding and stability of gold and silver products. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure is a schematic diagram of the process flow of silver gold sand spraying of the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Embodiment 1: The present invention provides the following technical solutions: A gold and silver product, comprising a silver blank and a gold sand layer, wherein the gold sand layer is made of gold sand particles, and the gold sand particles of the gold sand layer are uniformly attached to the surface of the silver base layer to form a colorful and shining effect;

[0026] The gold sand particles of the gold sand layer are partially embedded in the surface of the silver base layer to improve the adhesion and packaging stability of the gold sand particles, and the gold sand particles are partially protruded from the surface of the silver blank.

[0027] By spraying gold sand on the surface of the heated and softened silver blank, the silver blank is wrapped and effectively combined with the gold sand. By adjusting the sand particle size of the gold sand and the spraying area, a specific required style can be formed on the surface of the silver blank. The ornaments have diverse patterns, are highly personalized, and have a colorful and shiny effect, which effectively improves the beauty of gold and silver ornaments.

[0028] Embodiment 2: The technical content disclosed in this embodiment is based on the above embodiment 1 and further discloses a silver gold sand spraying process, including the following steps:

[0029] The first step is to pre-treat the silver blank, process the silver blank into the required shape, and then pre-treat the surface of the silver blank to remove the oxide layer by grinding and polishing to ensure that the gold sand layer can be firmly attached to the base material to avoid subsequent peeling and falling off of the gold sand;

[0030] The second step is to pre-treat the gold sand and screen the gold sand using a screen to remove smaller gold sand particles to ensure that the gold sand particles are uniform in size;

[0031] The third step is to heat the silver blank. Use a 900℃ high temperature flame to heat the surface of the silver blank until it softens but does not melt. At the same time, ensure that the overall shape of the silver blank remains intact, so that the subsequent gold sand can hit and embed into the softened layer of the silver blank, ensuring that the gold sand adheres to the outside of the silver blank.

[0032] The fourth step is to spray gold sand. Spray or sprinkle the gold sand on the surface of the heated silver blank, and continue to heat the silver blank to ensure that the surface of the silver blank remains softened. Then press the gold sand with a tool to ensure that the gold sand is fully wrapped.

[0033] The fifth step is cooling and shaping, which is to cool the silver blank after spraying gold sand to room temperature to achieve overall shaping;

[0034] The sixth step is grinding and polishing. Fine grinding is done to remove defects and unevenness on the product surface, fully expose the gold sand, and improve the brightness of the product surface.

[0035] The screen uses 40 mesh to ensure that the particle size of the gold sand remains uniform.

[0036] The gold sand is sprayed evenly on the surface of the heated silver blank using a nozzle.

[0037] The cooling and shaping are carried out by air cooling and water cooling, and the wind speed of air cooling is limited to low wind speed to avoid affecting the adhesion stability and position accuracy of the gold sand.

[0038] Pre-treating the silver blank and gold sand before spraying gold sand can improve the surface smoothness of the silver blank and gold sand, avoid stains between the two after spraying and affecting the adhesion, and the heated and softened silver blank can be dented after the gold sand is sprayed and hit, so that the gold sand can be stably embedded in the surface of the silver blank, making the silver blank and gold sand tightly and seamlessly combined, thereby improving the material bonding and stability of gold and silver products.

[0039] Embodiment 3: A gold and silver product, comprising a silver blank and a gold sand layer, wherein the gold sand layer is made of gold sand particles, and the gold sand particles of the gold sand layer are uniformly attached to the surface of the silver base layer to form a colorful and shining effect;

[0040] The gold sand particles of the gold sand layer are partially embedded in the surface of the silver base layer to improve the adhesion and packaging stability of the gold sand particles, and the gold sand particles are partially protruded from the surface of the silver blank.

[0041] The silver gold-spraying process includes the following steps:

[0042] The first step is to pre-treat the silver blank, process the silver blank into the required shape, and then pre-treat the surface of the silver blank to remove the oxide layer by grinding and polishing to ensure that the gold sand layer can be firmly attached to the base material to avoid subsequent peeling and falling off of the gold sand;

[0043] The second step is to pre-treat the gold sand and screen the gold sand using a screen to remove smaller gold sand particles to ensure that the gold sand particles are uniform in size;

[0044] The third step is to heat the silver blank. Use a 1000℃ high temperature flame to heat the surface of the silver blank until it softens but does not melt. At the same time, ensure that the overall shape of the silver blank remains intact, so that the subsequent gold sand will impact and embed into the softened layer of the silver blank, ensuring that the gold sand adheres to the outside of the silver blank.

[0045] The fourth step is to spray gold sand. Spray or sprinkle the gold sand on the surface of the heated silver blank, and continue to heat the silver blank to ensure that the surface of the silver blank remains softened. Then press the gold sand with a tool to ensure that the gold sand is fully wrapped.

[0046] The fifth step is cooling and shaping, which is to cool the silver blank after spraying gold sand to room temperature to achieve overall shaping;

[0047] The sixth step is grinding and polishing. Fine grinding is done to remove defects and unevenness on the product surface, fully expose the gold sand, and improve the brightness of the product surface.

[0048] The screen uses 80 mesh to ensure that the particle size of the gold sand remains uniform.

[0049] The gold sand is sprayed evenly on the surface of the heated silver blank using a nozzle.

[0050] Cooling and shaping are carried out by air cooling and water cooling, and the wind speed of air cooling is limited to low wind speed to avoid affecting the adhesion stability and position accuracy of the gold sand;

[0051] When carrying out the silver gold sand blasting process, it is necessary to pay attention to protecting the environment and equipment to avoid pollution and damage. Specifically, effective exhaust gas treatment measures need to be taken to reduce the emission of harmful gases. At the same time, the sand blasting equipment and operating areas need to be regularly maintained and cleaned to ensure the normal operation of the equipment and the cleanliness of the environment.

[0052] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A silver gold sand spraying process, characterized in that: The following steps are involved: The first step is to pre-treat the silver blank, process the silver blank into the required shape, and then pre-treat the surface of the silver blank to remove the oxide layer by grinding and polishing to ensure that the gold sand layer can be firmly attached to the base material to avoid subsequent peeling and falling off of the gold sand; The second step is to pre-treat the gold sand and screen the gold sand. Use a screen to screen the gold sand to remove smaller gold sand particles to ensure that the gold sand particles are uniform in size; The third step is to heat the silver blank. Use a high temperature flame of 900℃-1000℃ to heat the surface of the silver blank until it softens but does not melt. At the same time, ensure that the overall shape of the silver blank remains intact, so that the subsequent gold sand can impact and embed into the softened layer of the silver blank, and ensure that the gold sand adheres to the outside of the silver blank. The fourth step is to spray gold sand. Spray or sprinkle the gold sand on the surface of the heated silver blank, and continue to heat the silver blank to ensure that the surface of the silver blank remains softened. Then press the gold sand with a tool to ensure that the gold sand is fully wrapped. The fifth step is cooling and shaping, which is to cool the silver blank after spraying gold sand to room temperature to achieve overall shaping; The sixth step is grinding and polishing. Fine grinding is done to remove defects and unevenness on the product surface, fully reveal the gold sand, and improve the brightness of the product surface.

2. A silver gold sand spraying process according to claim 1, characterized in that: The sieve uses 20-120 meshes to ensure that the particle size of the gold sand remains uniform.

3. A silver gold sand spraying process according to claim 1, characterized in that: The gold sand is sprayed evenly onto the surface of the heated silver blank by a nozzle.

4. The silver gold spraying process according to claim 1, characterized in that: The cooling and shaping is carried out by air cooling and water cooling, and the wind speed of the air cooling is limited to a low wind speed to avoid affecting the adhesion stability and position accuracy of the gold sand.

5. The silver gold sand spraying process according to claim 1, characterized in that: The product in the sixth step includes a silver blank and a gold sand layer. The gold sand layer is made of gold sand particles, and the gold sand particles of the gold sand layer are uniformly attached to the surface of the silver base layer to form a colorful and shining effect.

6. A silver gold sand spraying process according to claim 5, characterized in that: The Sands The gold sand particles of the layer are partially embedded in the surface of the silver base layer to improve the adhesion and packaging stability of the gold sand particles. And some of the gold sand particles protrude from the surface of the silver blank.

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