WO2013153544A2

WO2013153544A2 - Gold ornament

Info

Publication number: WO2013153544A2
Application number: PCT/IB2013/052982
Authority: WO
Inventors: 许其善; 黄桂腾
Original assignee: 周大福珠宝金行有限公司
Priority date: 2012-04-13
Filing date: 2013-04-15
Publication date: 2013-10-17
Also published as: TW201340906A; HK1174191A2; HK1188095A1; CN103501652B; CN103501652A; WO2013153544A3

Abstract

The present invention provides a gold ornament, the surface of said gold ornament exhibiting gold crystal-structured lines, crystal-textured lines, and criss-crossing crystal lines. The invention is advantageous in that the gold ornament exhibits an extremely smooth surface and a mosaic composition.

Description

Gold ornaments

Technical field

The invention belongs to the field of gold ornaments, and in particular relates to a gold ornament or jewelry with a surface texture structure. Background technique

In the field of jewelry or jewelry processing and processing technology, gold (especially gold: gold content of 99. 00% - 99. 95% or more) jewelry products are often made with different surface treatment techniques to make a lot of different textures And the pattern, by changing the roughness of the surface of the ornament, gives the product a different texture, light refraction, reflective structure and vivid color gradation.

A variety of gold jewelry surface processing techniques are provided in the prior art:

Prior art 1: Surface treatment techniques limited to the range of machining and grinding, for example: using various types of sanding tools to scrape directional etch marks on the surface of the ornament (commonly known as sanding);

Prior art 2: Using a seismic cone to engrave the pits of different depths, so that the surface has a smashing effect (commonly known as seismic sand); prior art 3: using different coarse and coarse sand particles to pressurize the surface to make the ornaments The surface has a fine sanding effect and a mild light emission (commonly known as water sand);

Prior Art 4: The surface of the ornament is irregularly polished by a grinding wheel, and the surface of the product is uneven, and the shimmering light is reflected by the light (commonly known as car sand).

The above four technologies are all commonly used in the art, and their common drawbacks are that they are all mechanical processing modes, and the working hours and the surface texture of the jewelry are not ideal. Summary of the invention

The present invention provides a gold charm or jewellery in which the surface of the gold charm exhibits a visually visible gold crystal structure. For example, the visually visible gold crystal structure grain is a microscopic grain structure in which gold is subjected to heat treatment.

The invention also provides a method for processing gold ornaments or jewellery, characterized in that the gold ornaments or jewels are first heat-treated, and the crystals are reorganized and concentrated to reach the visually visible gold crystal structure lines, and then electrolyzed or The etch treatment exposes the visually visible gold crystal structure lines to the surface of the gold charm or jewelry.

The gold crystal structure grain is a visually visible microscopic crystal structure grain which appears after the crystal is heat-treated and the crystal is recombined and concentrated.

For example, the gold crystal structure grain may be a crystal structure pattern formed by heating gold to a temperature higher than 350 ° C. Road. The heat treatment temperature may be lower than, for example, 500 ° C

For example, the heat treatment time may be 30-60 minutes or more than 60 minutes.

For example, quenching treatment can be performed after heat treatment.

For example, the gold crystal structure grain in this embodiment is a crystal structure grain which is visually visible after the crystal is heated and heated to a temperature of 400 ° C to 500 ° C.

For example, the visually visible gold crystal structure is gold after heat treatment, and the crystals are recombined and concentrated to a microscopic crystal structure, and then exposed to the surface of the ornament by electrolysis or electro-erosion treatment.

Preferably, the length of the individual gold crystals of the visible gold crystal structure is greater than 0.5. For example, it may be greater than lmm.

Preferably, the width of the individual gold crystals of the visible gold crystal structure is greater than 0.5. For example, it may be greater than lmm.

Preferably, the individual crystal length and width of the visually visible gold crystal structure are less than 4

5毫米^2。 For example, the visible crystal size of the crystal structure of the individual crystals is greater than 0. 05mm ² , for example, may also be greater than 0. 25mm ²

Preferably, the individual crystal area of the visible gold crystal structure grain is less than 4 mm ²

For example, the gold crystal structure grain includes crystal lines having different growth directions and criss-crossing.

For example, the visible gold crystal structure of the gold charm constitutes a mosaic pattern structure. Each of the gold crystals that make up the composition of the Marseille itself forms a "mosaic" reflective surface. The "mosaic" reflective surface is a gold mosaic reflecting surface that is visually visible. The direction of each "mosaic" reflective surface is not the same, or different. When combined, each piece of "mosaic" will change the effect of the flash as it rotates, resulting in a brighter, more dazzling golden glow.

00以上以上。 The gold content of the gold ornaments may be more than 99. 00%.

The crystal structure grain includes the size and shape of the irregular crystal.

The crystal structure grain includes a boundary grain of an irregular crystal.

The crystal structure grain includes an irregular grain structure texture.

For example, the crystal structure grain may be a gold grain structure heated to a temperature of 400 ° C to 500 ° C. 00%- 99. 95% The gold content of the gold ornaments or jewellery may be 99. 00% - 99. 95%

For example, the gold content of the gold ornaments or jewellery may be more than 99.95%.

The present invention also provides an embodiment of a method of treating man-hours that is time-saving and has a better gold finish, which is electrochemically treated to treat gold ornaments.

The method for treating the surface texture of the gold ornaments includes: Inserting an anode and a cathode into the electrolyte, connecting the gold ornaments to the anode and placing them in the electrolyte; energizing the anode and the cathode to electrolyze the electrolyte;

Wherein, a current is generated during the electrolysis process, and the electron exchange of the current converts the gold on the surface of the gold ornaments from an atomic state to an ionic state, so that gold on the surface of the gold ornaments is etched, and the surface of the gold ornaments exhibits gold. Crystal structure.

Preferably, the cathode is a platinum titanium mesh.

Preferably, the electrolyte in the electrolyte comprises: a silver salt, a trace amount of potassium hydroxide, potassium carbonate, potassium cyanide; wherein the content of the silver salt is 54%.

01 A/dm ² to 0. 03A/dm ² . The current density of the current is 0. 01 A / dm ² to 0. 03A / dm ² .

Preferably, the method further comprises: subjecting the gold charm to heat treatment prior to electrolyzing the electrolyte.

Preferably, the method further comprises: heating the gold charm at a temperature of from 400 ° C to 500 ° C before electrolyzing the electrolyte.

Preferably, the method further comprises: after electrolyzing the electrolyte, sequentially cleaning the gold ornaments with water and hydrochloric acid.

The invention has the beneficial effects that the processing method of the surface of the gold ornaments has been separated from the existing machining mode, and the treatment process is electrochemically processed, which saves man-hours and has better surface texture. The finished trim workpiece not only presents a very smooth surface, but also presents the most primitive crystal structure of gold. This includes the size and shape of the crystal, the boundaries of the crystal, its structure, and so on. In addition, the growth directions of the crystals are often different, criss-crossing, and thus each forms a light-refracting surface, which gives the surface brightness and darkness a unique change in brightness and darkness. The combination is like a mosaic composition, and the texture is unique. And because the surface texture of each product depends on its metal structure, the color surface of each product is unique. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the embodiments or the drawings used will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. For the technicians, other drawings can be obtained based on these drawings without paying for creative labor.

Figure 1 is an oblique view of a gold charm;

Figure 2 is a front elevational view of the gold charm of Figure 1; Figure 3 is a cross-sectional view of the gold charm of Figure 2 taken along line AA;

Figure 4 is a surface texture diagram of the gold charm of Figure 1;

Figure 5 is a partial enlarged view of the surface texture of Figure 4.

FIG. 6 is a schematic view showing the gold ornaments placed in an electrolyte according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The gold charm 100 shown in Figures 1 through 5 includes a gold body 110 and an outer surface 120 thereof. The outer surface 120 of the gold charm 100 is smooth but exhibits a gold crystal structure 130. The crystal structure grain 130 includes crystals having different growth directions and criss-crossing. The crystal structure grain 130 mainly includes gold crystals which are visually visible and criss-crossed. The aggregation of the gold crystals integrally constitutes a mosaic pattern, in particular, a light-refracting surface composed of gold crystals which are visually visible and criss-crossed.

As shown in Figures 4 and 5, individual gold crystals have an irregular shape, but most of their individual lengths and widths are larger than 1 mm. For example, the gold crystal example shown in Figure 5 has a length and width of 1.736 mm X 1. 313 mm. Other examples of gold crystals are 1.623 mm, 2.473 mm, and 3.377 mm. Of course, some gold crystals have a length or width of less than 1 mm.

FIG. 6 is a schematic view showing the placement of a gold charm in an electrolyte according to an embodiment of the present invention. The following is an example of a treatment method for achieving the surface texture of the gold charm of the present invention:

In step S101, the anode 1 and the cathode 2 are inserted into the electrolyte 3, and the gold ornaments 5 are connected to the anode 1 to be placed in the electrolyte 3. (See FIG. 6, the gold ornaments 5 are represented by black rings, but the present invention does not This shape is limited; the anode 1 is columnar, but the present invention is not limited by this shape; the cathode 2 is plate-shaped, but the present invention is not limited by this shape);

Among them, the electrolyte 3 is placed in the container 4 (for example, an electrolytic cell or other container). One anode 1 and two cathodes 2 are shown in Fig. 6, but the present invention is not limited to this number.

In step S102, the anode 1 and the cathode 2 are energized to electrolyze the electrolyte; as shown in Fig. 6, the anode 1 is connected to the positive terminal 6 of the power source, and the cathode 2 is connected to the negative terminal 7 of the power source. Wherein, a current is generated during the electrolysis process, and the electron exchange of the current converts the gold on the surface of the gold ornaments from an atomic state to an ionic state, so that gold on the surface of the gold ornaments is etched, and the surface of the gold ornaments exhibits gold. The crystal structure, for example, the etch depth can be about 2-30 microns.

It is important to note that in order to ensure that metal or organic contamination affects operation, it must be kept clean during operation. For example, the cathode is a platinum titanium mesh.

For example, the electrolyte in the electrolyte solution comprises: a silver salt, a trace amount of potassium hydroxide, potassium carbonate, potassium cyanide; wherein the content of the silver salt is about 54%.

01A/dm ²至0. 03A/dm ^2。 For example, the temperature of the current may be from 30 to 39 ° C, the electrolysis time may be from 30 to 60 minutes, the current density of the current may be from 0. 01A / dm ² to 0. 03A / dm ² .

For example, the method further includes the step S103: heat treating the gold charm before electrolyzing the electrolyte.

For example, the temperature at which the gold ornaments can be heat treated is from 400 ° C to 500 ° C. At this temperature the heat treatment, crystals of gold will be deliberately recombination and amplification, the length of the heating time directly affects the size of the crystal, the crystal over the visible area of 0. 05mm ² to 0. 25mm ^2. The heat treatment time can be about 30-60 minutes. After the heat treatment, quenching treatment can be performed.

Preferably, the method further comprises the step S104: after electrolyzing the electrolyte, the gold ornaments are sequentially washed with water and hydrochloric acid.

Thus, the gold grain surface texture treatment method has been separated from the existing machining mode, and the treatment process is electrochemical treatment, which saves man-hours and has better surface texture. The treated trim workpiece not only presents a very smooth surface, but also presents the most original crystal structure of gold. This includes the size and shape of the crystal, the boundaries of the crystal, its structure, and the like. In addition, the growth directions of the crystals are often different, criss-crossing, and thus each forms a light-refractive surface, which gives the surface light and dark a unique change in brightness and darkness. The combination is like a mosaic composition, and the texture is unique. And because the crystal lattice texture of each product depends on its metal structure, the color surface of each product is unique.

Those skilled in the art will appreciate that the drawings are only a schematic representation of a preferred embodiment, and that the components in the drawings are not necessarily required to practice the invention.

Those skilled in the art can understand that the components in the embodiments can be distributed in the apparatus of the embodiment according to the description of the embodiments, or the corresponding changes can be located in one or more apparatuses different from the embodiment. The above-mentioned embodiments of the present invention are for the purpose of description only and do not represent the advantages and disadvantages of the embodiments.

The principles and embodiments of the present invention have been described in connection with the specific embodiments of the present invention. The description of the above embodiments is only for the understanding of the method of the present invention and its core ideas; In view of the above, the description of the present invention is not limited to the scope of the present invention.

Claims

Claim

A gold charm characterized in that the surface of the gold charm exhibits a gold crystal structure texture which is visually visible.

2. The gold charm according to claim 1, wherein the visually visible gold crystal structure grain is a microscopic crystal structure grain which appears after the heat treatment of the gold.

3. The gold charm according to claim 1, wherein the gold crystal structure grain is a visually visible microscopic crystal structure grain which appears after the crystal is subjected to heat reorganization and gold after heat treatment.

4. The gold charm according to claim 1, wherein the gold crystal structure is heated to a temperature of 400 ° C to 500 ° C, for example, after heating to 350 ° C to 550 ° C. The crystal structure of the crystal which is visualized by recombination and aggregation.

5. The gold charm according to claim 1, wherein the visually visible gold crystal structure is gold after heat treatment, and the crystals are recombined and concentrated to a microscopic crystal structure, and then electrolyzed or The etch treatment exposes it to the surface of the ornament.

The length of the gold crystals of the visible gold crystal structure is greater than 0.5. For example, the height may be greater than 1

The width of the gold crystals of the gold crystal structure is more than 0.5. For example, the height may be greater than 1

8. The gold charm according to claim 1, wherein each of the visually visible gold crystal structure lines has a length and a width of less than 4

0 毫米² ^{2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2}

10. The gold charm according to claim 1, wherein the visually visible gold crystal structure grain has an individual crystal area of less than 4 mm ²

11. The gold charm according to claim 1, wherein the gold crystal structure grain comprises crystal lines having different growth directions and criss-crossing.

The gold charm according to any one of claims 1 to 11, wherein the visible gold crystal structure of the gold charm constitutes a mosaic pattern structure.

00%以上以上。 The gold jewellery of the gold ornaments is more than 99. 00% or more.

14. A method of processing a gold charm, characterized in that

- Heat treatment of the gold ornaments first, so that the crystals can be reorganized and aggregated to the visually visible gold crystal structure.

- exposing the visually visible gold crystal structure pattern to the surface of the gold charm by electrolysis or electrolytic etching.

15. The method of claim 14, wherein the electrolytic or electrolytic etching exposes a 2-30 micron visually visible gold crystal structure grain on the surface of the gold charm to the finished surface.