Gold wire drawing process

Abstract

The invention provides a gold wire drawing process. The gold wire drawing process comprises the following steps that S1, gold pretreatment is conducted, specifically, grease, dust and oxide on the surface of gold are removed through ultrasonic cleaning or a neutral solvent; s2, gold fixing and positioning, wherein a gold workpiece is fixed to a special clamp or a beewax rubber plate and positioned; s3, gold coarse wiredrawing operation is conducted, specifically, a diamond wiredrawing needle, a tungsten steel scraper or special abrasive paper is selected for bottoming according to the texture requirement; s4, gold fine wiredrawing operation is conducted, specifically, a diamond wiredrawing needle, a tungsten steel scraper or special abrasive paper is selected for refining according to the texture requirement; s5, gold dust removal, wherein metal chippings are removed through a banister brush or compressed air; s6, gold passivation treatment is conducted, specifically, a nanoscale protection layer is sprayed; and S7, gold local polishing is conducted, specifically, mirror polishing is conducted on the non-wiredrawing area through an agate knife. According to the gold wire drawing process provided by the invention, the texture of each gold workpiece ornament is unique, the wire drawing effect of combining a cat eye with velvet can be realized, and the aesthetic degree of the gold craft ornament is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gold processing, and particularly to a gold wire drawing process. Background Art

[0002] At present, the surface treatment process of gold workpieces in the gold processing technology on the market is relatively simple, and the processing process is relatively rough, resulting in a relatively rough surface effect of the processed gold workpieces, and the delicacy degree of the gold workpieces is not high. Summary of the Invention

[0003] The purpose of the present invention is to solve the defect that the angle of the left and right swing of the fan is limited by the limiting structure, resulting in the fan being unable to achieve full-range swing and affecting the user experience during use, and to provide a gold wire drawing process.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a gold wire drawing process, including the following steps:

[0005] S1: Gold pretreatment: Use ultrasonic cleaning or a neutral solvent to remove grease, dust and oxides on the surface of the gold.

[0006] S2: Gold fixing and positioning: Fix the gold workpiece on a special fixture or a beeswax glue board and position it.

[0007] S3: Gold rough wire drawing operation: Select a diamond wire drawing needle, a tungsten steel scraper or a special sandpaper according to the texture requirement, and apply pressure uniformly along a single direction for underlaying.

[0008] S4: Gold fine wire drawing operation: Select a diamond wire drawing needle, a tungsten steel scraper or a special sandpaper according to the texture requirement, apply pressure uniformly along a single direction for refinement, and form grooves by using the ductility of the gold.

[0009] S5: Gold dust removal: Use a soft brush or compressed air to remove metal chips.

[0010] S6: Gold passivation treatment: Spray a nano-level protective layer.

[0011] S7: Gold local polishing: Use an agate knife to polish the non-wire-drawn area to a mirror finish.

[0012] Further, in the S1, for gold workpieces with higher hardness, low-temperature annealing treatment is also included.

[0013] Further, the temperature of the low-temperature annealing is 250 - 300 °C.

[0014] Further, in the S2, for gold workpieces with relatively complex shapes, customized fixtures are used for fixing.

[0015] Further, in S3 and S4, for fine textures, an ultra-fine fiber polishing wheel is also used.

[0016] Further, in S3 and S4, for cross wire drawing, the pressing direction needs to be switched to form a grid or wavy pattern.

[0017] Further, the particle size of the special sandpaper in S3 and S4 is 600# - 2000#.

[0018] Further, the groove depth formed by the ductility of gold in S4 is about 10 - 50 microns.

[0019] Further, the nano-level protective layer in S6 is a fluorine-containing material.

[0020] Further, the fluorine-containing material is any one of fluorine-containing polymers or nano-fillers.

[0021] The beneficial effects of the gold wire drawing process provided by the present invention are as follows: The gold wire drawing process provided by the present invention can make the texture of each gold workpiece ornament unique, and can achieve the wire drawing effect of combining cat's eye with velvet, making the processed gold workpiece unique and improving the aesthetic degree of gold process ornaments; and the local texture density of the gold process workpiece can be adjusted, suitable for complex designs combining relief and wire drawing. Under normal wearing conditions, the texture can be maintained without obvious wear for 5 - 8 years, and can be extended to more than 10 years with regular maintenance, thus effectively improving the durability of the texture of the gold workpiece ornament using this gold wire drawing process. In addition, this gold wire drawing process combines traditional gold processing techniques with modern designs, especially suitable for the high-end customization field, improving the aesthetic degree of gold workpiece ornaments through the physical and optical effects of the texture, and endowing it with a modern aesthetic value of low-key luxury. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the process flow chart of the gold wire drawing process provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] See Figure 1 , which is a process flow chart of a gold wire drawing process provided by the present invention. This gold wire drawing process includes the following steps:

[0025] S1: Gold pretreatment: Use ultrasonic cleaning or a neutral solvent to remove grease, dust, and oxides on the surface of the gold; thereby effectively ensuring the cleanliness of the substrate of the gold workpiece to be drawn. S2: Gold fixing and positioning: Fix the gold workpiece on a special fixture or beeswax glue board and position it; thereby effectively preventing the gold workpiece from sliding during the wire drawing process. S3: Coarse gold wire drawing operation: Select a diamond wire drawing needle, tungsten steel scraper, or special sandpaper according to the texture requirements and apply uniform pressure in a single direction for underlaying. S4: Fine gold wire drawing operation: Select a diamond wire drawing needle, tungsten steel scraper, or special sandpaper according to the texture requirements, apply uniform pressure in a single direction for refinement, and utilize the ductility of the gold to form grooves; by applying uniform pressure in a single direction with a diamond wire drawing needle, tungsten steel scraper, or special sandpaper and gradually processing in stages from thick lines to thin lines, the uniformity of the texture after wire drawing can be effectively ensured. S5: Gold dust removal: Use a soft brush or compressed air to remove metal debris; thereby effectively preventing residual scratches on the surface. S6: Gold passivation treatment: Spray a nano-level protective layer, thereby effectively enhancing the antioxidant property, preventing the occurrence of texture wear during daily wear, and improving the durability of the texture of the gold workpiece jewelry processed by this gold wire drawing process. S7: Local gold polishing: Use an agate knife to perform mirror polishing on the non-wire-drawn area, thereby effectively creating a texture contrast and further improving the aesthetic appearance of the gold workpiece processed by this gold wire drawing process. The gold wire drawing process provided by the present invention can make the texture of each gold workpiece jewelry unique and distinctive, improving the aesthetic appearance of gold process jewelry; and the local texture density of the gold process workpiece can be adjusted, suitable for complex designs combining embossing and wire drawing. Under normal wearing conditions, the texture can be maintained without obvious wear for 5 - 8 years, and regular maintenance can extend it to more than 10 years, thereby effectively improving the durability of the texture of the gold workpiece jewelry processed by this gold wire drawing process. In addition, this gold wire drawing process combines traditional gold processing techniques with modern designs, especially suitable for the high-end customization field, improving the aesthetic appearance of gold workpiece jewelry through the physical and optical effects of the texture and endowing it with a modern aesthetic value of low-key luxury.

[0026] In the embodiments provided by the present invention, in S1, it also includes that for gold workpieces with relatively high hardness, low-temperature annealing treatment is carried out, and the temperature of the low-temperature annealing is 250 - 300 °C. Thereby improving the ductility of the gold workpiece and facilitating the subsequent processing operation of the wire drawing process. In S2, it also includes that for gold workpieces with relatively complex shapes, customized fixtures are used for fixing. Thereby effectively improving the fixing stability of the gold workpiece during the processing operation of the wire drawing process while improving the positioning accuracy of the gold workpiece, facilitating the processing operation of the wire drawing process and preventing the gold workpiece from sliding during the wire drawing process.

[0027] In the embodiments provided by the present invention, S3 and S4 also include using an ultrafine fiber polishing wheel for polishing fine textures, so as to meet the processing requirements of the fine textures of gold workpieces. While effectively improving the convenience of operation for operators, it meets the needs of users for the wire drawing effects of different gold workpieces, enriches the usage scenarios and adaptability of this gold wire drawing process. S3 and S4 also include that for cross wire drawing, the pressure application direction needs to be switched to form a grid or wavy pattern, so as to meet the processing requirements for the wire drawing textures of grids or wavy patterns, further meet the needs of users for the wire drawing effects of different gold workpieces, and enrich the usage scenarios and adaptability of this gold wire drawing process

[0028] In S3 and S4 provided by the present invention, the particle size of the special sandpaper is 600# - 2000#. By using a diamond wire drawing needle, tungsten steel scraper or special sandpaper to apply pressure evenly in a single direction and gradually process from coarse texture to fine texture in stages, the uniformity of the texture after wire drawing can be effectively ensured. For example, after using the special sandpaper with a particle size of 800# for priming, then use the special sandpaper with a particle size of 1600# for refinement. In S3 and S4, pressure is applied evenly during the processing of rough wire drawing and fine wire drawing, and it is necessary to ensure that pressure is applied evenly in a single direction or the pressure application direction is switched to form a wire drawing texture of a grid or wavy pattern

[0029] In the embodiments provided by the present invention, the groove depth formed by utilizing the ductility of gold in S4 is about 10 - 50 microns. While effectively ensuring the aesthetic degree of the texture after rough wire drawing and fine wire drawing, it improves the structural stability of the gold workpiece after wire drawing processing, and avoids the situation that the excessive depth of the groove easily leads to the fragility of the structure of the gold workpiece. In addition, the nano-level protective layer in S6 is a fluorine-containing material. Thus, it effectively enhances the oxidation resistance of the gold workpiece, prevents the wear of the texture during daily wearing, and improves the durability of the texture of the gold workpiece jewelry in this gold wire drawing process

[0030] The present invention will be further described below through four embodiments and one comparative example:

[0031] Embodiment 1:

[0032] A gold wire drawing process includes the following steps:

[0033] S1: Gold pretreatment: Use ultrasonic cleaning to remove the grease, dust and oxides on the surface of the gold

[0034] S2: Gold fixing and positioning: Fix the gold workpiece on the fixture and position it

[0035] S3: Gold rough wire drawing operation: Select the sandpaper with 2000# according to the texture requirements and apply pressure evenly in a single direction. The angle of uniform pressure application is 30° for priming

[0036] S4: Fine gold wire drawing operation: Select a diamond wire drawing needle with a specification of 0.05 mm and apply pressure evenly in a single direction according to the texture requirements. The angle of uniform pressure application is 30°, and refinement is carried out to form grooves using the ductility of gold;

[0037] S5: Gold dust removal: Use a soft brush to remove metal debris;

[0038] S6: Gold passivation treatment: Spray a nano-level fluorine-containing protective layer;

[0039] S7: Local gold polishing: Use an agate knife to perform mirror polishing on the non-drawn area.

[0040] Example Two:

[0041] A gold wire drawing process, including the following steps:

[0042] S1: Gold pretreatment: Anneal the gold workpiece at a low temperature of 280° and use ultrasonic cleaning to remove grease, dust, and oxides on the gold surface;

[0043] S2: Gold fixing and positioning: Fix the gold workpiece on the fixture and position it;

[0044] S3: Coarse gold wire drawing operation: Select sandpaper with a grit size of 1600# according to the texture requirements, apply pressure evenly in a single direction at an angle of 30°, and apply pressure evenly in a single direction for priming;

[0045] S4: Fine gold wire drawing operation: Select a tungsten steel scraper with a specification of 0.05 mm according to the texture requirements, apply pressure evenly in a single direction at an angle of 45°, apply pressure evenly in a single direction for refinement, and form grooves using the ductility of gold;

[0046] S5: Gold dust removal: Use a soft brush or compressed air to remove metal debris;

[0047] S6: Gold passivation treatment: Spray a nano-level protective layer;

[0048] S7: Local gold polishing: Use an agate knife to perform mirror polishing on the non-drawn area.

[0049] Example Three:

[0050] A gold wire drawing process, including the following steps:

[0051] S1: Gold pretreatment: Use a neutral solvent to remove grease, dust, and oxides on the gold surface;

[0052] S2: Gold fixing and positioning: Fix the gold workpiece on the beeswax glue board and position it;

[0053] S3: Coarse gold wire drawing operation: Select 1200# sandpaper according to the texture requirement, apply pressure evenly along a single direction, with the angle of even pressure being 45°, for underlaying;

[0054] S4: Fine gold wire drawing operation: Select a 0.05 mm tungsten steel scraper according to the texture requirement, switch to the opposite pressure application direction as in S3, and apply pressure evenly to refine, with the angle of even pressure being 45°, and form grooves by using the ductility of gold;

[0055] S5: Gold dust removal: Use a soft brush or compressed air to remove metal debris;

[0056] S6: Gold passivation treatment: Spray a nano-level protective layer;

[0057] S7: Gold local polishing: Use an agate knife to perform mirror polishing on the non-wire-drawn area.

[0058] Example 4:

[0059] A gold wire drawing process, characterized by comprising the following steps:

[0060] S1: Gold pretreatment: Use ultrasonic cleaning to remove grease, dust and oxides on the gold surface;

[0061] S2: Gold fixing and positioning: Fix the gold workpiece on the fixture and position it;

[0062] S3: Coarse gold wire drawing operation: Polish according to the texture requirement using an ultra-fine fiber polishing wheel, select 2000# sandpaper, with the angle of even pressure being 30°, apply pressure evenly along a single direction, for underlaying;

[0063] S4: Fine gold wire drawing operation: Select a tungsten steel scraper with a specification of 0.05 mm and apply pressure evenly along a single direction according to the texture requirement, with the angle of even pressure being 45°, for refinement, and form grooves by using the ductility of gold;

[0064] S5: Gold dust removal: Use a soft brush or compressed air to remove metal debris;

[0065] S6: Gold passivation treatment: Spray a nano-level protective layer;

[0066] S7: Gold local polishing: Use an agate knife to perform mirror polishing on the non-wire-drawn area.

[0067] Comparative example:

[0068] A gold wire drawing process, characterized by comprising the following steps:

[0069] S1: Coarse gold wire drawing operation: Use a tool with a specification of 0.2 mm for underlaying;

[0070] S2: Gold fine wire drawing operation: Refine using a tool with a specification of 0.2 mm;

[0071] S3: Gold cleaning operation: Simple cleaning.

[0072]

[0073] According to the above table, the gold wire drawing process provided by the present invention can make the texture of each gold workpiece ornament unique and distinctive, improving the aesthetic degree of gold process ornaments; and can adjust the local texture density of gold process workpieces, suitable for complex designs combining embossing and wire drawing. Under normal wearing conditions, the texture can be maintained without obvious wear for 5 - 8 years, and regular maintenance can extend it to more than 10 years, thus effectively improving the durability of the texture of gold workpiece ornaments using this gold wire drawing process. In addition, this gold wire drawing process combines traditional gold processing techniques with modern design, especially suitable for the high-end customization field, improving the aesthetic degree of gold workpiece ornaments through the physical and optical effects of the texture, and endowing it with a low-key and luxurious modern aesthetic value. The gold wire drawing process provided by the present invention can be applied to the matte texture design of the arms of high-end jewelry wedding rings, pendant borders; in the field of collectibles, such as anti-counterfeiting textures on the edges of commemorative coins, customized surfaces of art gold bars; in the field of watch accessories, such as the combination of wire drawing on the side of the watch case and the mirror bezel to enhance the layering, etc.

[0074] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gold wire drawing process, characterized in that: The following steps are involved: S1: Gold pretreatment: Use ultrasonic cleaning or neutral solvent to remove grease, dust and oxides on the gold surface; S2: Gold fixation and positioning: fix the gold workpiece on the fixture or beeswax glue plate and position it; S3: Gold rough drawing operation: According to the texture requirements, use sandpaper to apply pressure in a single direction at a uniform speed to make a base; S4: Gold fine drawing operation: Select diamond drawing needle or tungsten steel scraper according to the texture requirements, apply pressure at a uniform speed in a single direction to refine, and use the ductility of gold to form grooves; S5: Gold dust removal: Use a soft brush or compressed air to remove metal debris; S6: Gold passivation treatment: spraying nano-scale protective layer; S7: Local polishing of gold: Use an agate knife to mirror-polish the non-brushed area.

2. A gold wire drawing process as claimed in claim 1, characterized in that: The S1 also includes the step of applying low temperature annealing treatment to the gold workpiece having a relatively high hardness.

3. A gold wire drawing process as claimed in claim 2, characterized in that: The temperature of the low temperature annealing is 250-300°C.

4. A gold wire drawing process as claimed in claim 1, characterized in that: The S2 also includes fixing the gold workpiece with a more complicated shape with a jig.

5. A gold wire drawing process as claimed in claim 1, characterized in that: S3 and S4 also include polishing with a microfiber polishing wheel for fine textures.

6. A gold wire drawing process as claimed in claim 1, characterized in that: The S3 and S4 also include that for cross-drawing, the pressure direction needs to be switched to form a grid or a wave pattern.

7. A gold wire drawing process as claimed in claim 1, characterized in that: The particle size of the sandpaper in S3 and S4 is 600#-2000#.

8. A gold wire drawing process as claimed in claim 1, characterized in that: The groove depth formed in S4 using the ductility of gold is about 10-50 microns.

9. A gold wire drawing process as claimed in claim 1, characterized in that: The nanoscale protective layer in S6 is made of fluorine-containing material.

10. A gold wire drawing process as claimed in claim 9, characterized in that: The fluorine-containing material is any one of a fluorine-containing polymer or a nanofiller.

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