A gold-plated silver engraving technique and gold-plated silver products

Abstract

A gold-plated silver engraving technique and related products are disclosed, relating to the field of precious metal jewelry manufacturing technology. The gold-plated silver engraving technique includes the following steps: S1, pretreatment, removing the oxide layer from the surface of the silver blank; S4, gold plating, wrapping a gold sheet around the surface of the silver blank; S5, compaction, compacting the gold sheet and the silver blank; S8, engraving, engraving dots on the surface of the gold sheet to embed the gold sheet into the silver blank; S9, secondary compaction, compacting the gold sheet and the silver blank a second time. Between steps S5 and S8, the following steps are also included: S6, through-hole; S7, wire drawing. Between steps S1 and S4, the following steps are also included: S2, pressing, pressing the gold into a gold sheet; S3, annealing. The gold-plated silver products are made using the above-described gold-plated silver engraving technique. Using the above technical solution, the advantages of tight adhesion between the gold sheet and the silver blank, resistance to peeling, and prevention of hollow areas are discussed.

Description

Technical Field

[0001] This invention relates to the field of precious metal jewelry manufacturing technology, specifically to a gold-plated silver engraving technique and gold-plated silver products. Background Technology

[0002] Gold-plated silver is a surface decoration technique applied to gold-plated silver products. It involves using special processes to encase gold (usually pure gold, fine gold, or colored gold) on the surface of a silver base, creating a product where the surface and interior materials differ. Traditional gold-plating techniques typically employ manual hammering or electroplating to adhere the outer gold layer to the silver base. However, these methods often result in issues such as hollow areas and poor adhesion, affecting the appearance, aesthetics, and resale value of the product. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings and deficiencies of the existing technology by providing a gold-plated silver engraving process and gold-plated silver products, which have the advantages of tight adhesion between the gold foil and the silver blank, resistance to peeling, and prevention of hollowing.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a gold-plated silver engraving process, comprising the following steps:

[0005] S1. Pretreatment: Pretreatment of the surface of the silver blank to remove the oxide layer;

[0006] S4, Gold plating, involves wrapping a gold sheet around the surface of a silver blank;

[0007] S5. Compacting: Compact the gold sheet and the silver blank together.

[0008] S8. Chasing: Chasing out dots on the surface of the gold foil to embed the gold foil into the silver blank;

[0009] S9. Secondary compaction: The gold foil and silver blank are compacted a second time.

[0010] The present invention further includes the following step between step S5 and step S8:

[0011] S6, via;

[0012] S7, pull the string.

[0013] The present invention further includes the following step between step S1 and step S4:

[0014] S2, pressing, pressing gold into gold sheets;

[0015] S3, Annealing.

[0016] In a further embodiment of the present invention, in step S5, an agate knife is used to press the gold sheet and the silver blank together.

[0017] The present invention further includes, after step S9, step S10: adding a protective layer, adding a protective layer to the surface of the gold foil to obtain a gold-plated silver product.

[0018] To achieve the above objectives, another technical solution adopted by the present invention is: a gold-plated silver product, which is made by the gold-plated silver engraving process described above.

[0019] The present invention further includes: a silver blank, a gold foil covering the surface of the silver blank, and pitting between the gold foil and the silver blank.

[0020] In a further embodiment of the present invention, a protective layer is provided on the surface of the gold skin.

[0021] The beneficial effects of adopting the above technical solution are as follows: In this invention, after the gold sheet and silver blank are compacted, they are then engraved with a dotted pattern on the surface of the gold sheet, allowing the gold sheet to embed into the silver blank, increasing the adhesion between the gold sheet and the silver blank. A second compaction further ensures a tighter bond between the gold sheet and the silver blank, preventing peeling and bubbling. This also guarantees the overall aesthetic appearance. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a flowchart illustrating the steps involved in the gold-plated silver engraving technique.

[0024] Figure 2 This is a flowchart of another step in the gold-plated silver engraving technique;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of a gold-plated silver product with some pitting.

[0026] Explanation of the markings in the attached diagram: 100, silver blank; 200, gold skin; 300, pitting. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present invention.

[0029] This embodiment relates to a gold-plated silver engraving technique, referring to... Figure 1 This includes the following steps:

[0030] S1. Pretreatment: Pretreatment of the surface of silver blank 100 to remove the oxide layer;

[0031] S4, Gold plating, wrapping 200g of gold foil around the surface of 100g silver blank;

[0032] S5. Compact the gold sheet 200 and the silver blank 100 together.

[0033] S8. Chasing: Chasing out prickles 300 on the surface of the gold sheet 200 so that the gold sheet 200 is embedded in the silver blank 100;

[0034] S9. Secondary compaction: Compact the gold sheet 200 and the silver blank 100 a second time.

[0035] In step S1, the surface of the silver blank 100 is pre-treated to remove the oxide layer, ensuring a smooth surface and increasing the bonding strength between the gold foil 200 and the silver blank 100. This reduces problems such as weak bonding caused by the oxide layer, ensuring the gold foil 200 adheres better to the silver blank 100. In step S4, the gold foil 200 is wrapped around the surface of the silver blank 100 to improve aesthetics and prevent the inner silver blank 100 from oxidizing too quickly. In step S5, the gold foil 200 and the silver blank 100 are pressed together to ensure a better fit. Specifically, an agate knife is used to press the gold foil 200 and the silver blank 100 together. Heating can also be used to further enhance the adhesion between the gold foil 200 and the silver blank 100. It should be noted that chiseling is a process that uses a set of chisels with various basic patterns, hammering the chisels to create raised and recessed patterns on the metal surface. In step S8, the gold sheet 200 is engraved with raised dots 300, i.e., a textured pattern, to embed the gold sheet 200 into the silver blank 100. This further increases the bonding strength between the gold sheet 200 and the silver blank 100, making it less prone to peeling and preventing blistering. Specifically, the surface of the gold sheet 200 may be entirely or partially engraved with raised dots 300 so that all or part of the gold sheet 200 is embedded in the silver blank 100.

[0036] After the chasing, step S9, or secondary compaction, is performed. This secondary compaction can be achieved using methods such as heating or pressing with an agate knife. This gold-plated silver chasing process not only increases the adhesion between the gold sheet 200 and the silver blank 100, making them bond more tightly and preventing peeling and bubbling, but also maintains the overall aesthetics and wear resistance.

[0037] Furthermore, referring to Figure 2 Between steps S5 and S8, the following steps are also included: S6, through-hole; S7, wire pulling. In this embodiment, the gold-plated silver product is ring-shaped. By pulling the ring-shaped gold-plated silver product through the through-hole, the size and diameter of the gold-plated silver product can be controlled. At the same time, it can also achieve tight compaction between the gold sheet 200 and the silver blank 100, strengthening the adhesion between the gold sheet 200 and the silver blank 100. Further, between steps S1 and S4, the following steps are also included: S2, pressing, pressing the gold into gold sheet 200; S3, annealing. The gold raw material is pressed into gold sheet 200 by a pressing machine. The area of ​​gold sheet 200 is greater than or equal to the surface of silver blank 100, ensuring that it can completely cover silver blank 100, while ensuring the flatness of gold sheet 200 itself. In addition, the thickness of gold sheet 200 can be set according to user needs. Annealing refers to heating gold sheet 200 to a certain temperature and then slowly cooling it, placing it at a constant temperature for a certain period of time to improve the grain morphology and structural stability of gold sheet 200. Annealing can improve the ductility and strength of the gold foil 200 and reduce its brittleness. The annealing temperature of the gold foil 200 is generally 600-800℃, and the annealing time is generally several hours to ensure the increase of the grain size of the gold foil 200 and the elimination of internal stress. In some embodiments, the annealing temperature and annealing time are adaptively adjusted according to the thickness and material of the gold foil. After annealing, the following step may also be included: acid frying. This step is used to remove surface impurities of the gold foil 200, improve the purity of the gold foil 200 surface, and ensure the smoothness of the gold foil 200 appearance.

[0038] In this embodiment, refer to Figure 2 Following step S9, the process further includes: S10, adding a protective layer, by adding a protective layer to the surface of the gold foil 200 to obtain a gold-plated silver product. The protective layer reduces friction and damage to the gold-plated silver product during daily wear, and also isolates it from air and reduces the risk of gold oxidation. The protective layer can be made of any of the following materials: resin, alloy, or nano-ceramic coating.

[0039] This embodiment also relates to a gold-plated silver product, see reference. Figure 3This product is made using the aforementioned gold-plated silver engraving technique. It has the advantage of being resistant to peeling. The product comprises: a silver blank 100, a gold sheet 200 covering the surface of the silver blank 100, and pitting 300 between the gold sheet 200 and the silver blank 100. It should be noted that the pitting 300 refers to small, dense, dot-like depressions created on the surface of the gold sheet 200 in step S8 using an engraving tool. The pitting 300 increases the adhesion between the gold sheet 200 and the silver blank 100. The pitting 300 can be engraved on all or part of the gold sheet 200, allowing all or part of the gold sheet 200 to be embedded in the silver blank 100.

[0040] In some embodiments, the surface of the gold foil 200 is also provided with a protective layer to prevent oxidation and excessive friction from damaging the gold foil 200.

[0041] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A gold-plated silver engraving technique, characterized in that, Includes the following steps: S1. Pretreatment: The surface of the silver blank (100) is pretreated to remove the oxide layer; S2, pressing, pressing the gold into gold sheets (200); S3, Annealing; The annealing temperature of the gold foil (200) is 600-800℃; S4, Gold plating: Gold foil (200) is wrapped around the surface of the silver blank (100); S5. Compact the gold sheet (200) and the silver blank (100) together. S6, via; S7, pull line; S8. Chasing: Chasing out prickles (300) on the surface of the gold sheet (200) so that the gold sheet (200) is embedded in the silver blank (100); S9. Secondary compaction: The gold sheet (200) and the silver blank (100) are compacted a second time. S10. Add a protective layer. Add a protective layer to the surface of the gold skin (200) to obtain a gold-plated silver product.

2. The gold-plated silver engraving technique according to claim 1, characterized in that, In step S5, the gold sheet (200) and the silver blank (100) are pressed together using an agate knife.

3. A gold-plated silver product, characterized in that, Made using the gold-plated silver engraving technique as described in any one of claims 1-2.

4. The gold-plated silver product according to claim 3, characterized in that, include: Silver blank (100), gold foil (200) covering the surface of the silver blank (100), and pockmarks (300) between the gold foil (200) and the silver blank (100).

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