High-temperature enamel gold obdurability electroforming processing method

Abstract

The invention belongs to the technical field of gold jewelry manufacturing, and particularly relates to a high-temperature enamel gold obdurability electroforming processing method which comprises the following steps: manufacturing a mother blank structure of gold jewelry by using a conductive photosensitive resin material through a photocuring 3D printing technology; the conductive resin master blank obtained through photocuring 3D printing is placed in electroforming equipment to be subjected to gold pattern electroforming machining; the gold plating layer is uniformly deposited on the surface of the mother blank by regulating and controlling an electroforming process, and then a final gold jewelry replica is obtained by chemically dissolving a resin material; gold production is combined with the high precision and complex structure processing capacity of the photocuring 3D printing technology and the high efficiency and manufacturing control of the electroforming technology, high-precision and complex jewelry processing of any structure is achieved, and a new production method and market competitive advantages are brought to the gold jewelry manufacturing industry. And through standardized technological processes and quality control measures, the manufacturing consistency and the quality stability of each gold jewelry product are ensured, and meanwhile, the production efficiency is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of gold jewelry manufacturing, and particularly relates to a high-temperature enamel gold strong-toughness electroforming processing method. Background Art

[0002] Gold jewelry manufacturing is an industry that combines traditional skills with modern technology, aiming to create jewelry that is both beautiful and valuable. Traditional skills: Gold jewelry manufacturing has a long history. From the classical period to the modern era, various unique techniques such as turning, polishing, sandblasting, etc. are widely used in jewelry making. These techniques add rich visual effects and unique texture to jewelry. Modern technology: With the development of science and technology, gold jewelry manufacturing has also ushered in an era of intelligent manufacturing. Digital empowerment makes jewelry design more precise and greatly improves production efficiency. At the same time, innovative techniques such as hard pure gold technology not only improves the shortcomings of traditional pure gold, but also brings more design possibilities to jewelry;

[0003] Stereolithography 3D printing is an advanced manufacturing technology that uses ultraviolet light to cure photosensitive resins to build objects layer by layer. Compared with traditional subtractive manufacturing technologies (such as milling or engraving), stereolithography 3D printing has the advantages of high precision, high efficiency and the ability to manufacture complex geometric shapes. In recent years, with the continuous improvement of the performance of photosensitive resins and the development of printing equipment, this technology has been widely used in jewelry, medical, aerospace and other fields;

[0004] Traditional gold jewelry manufacturing usually relies on processes such as melting and hand-carving, which are restricted by factors such as high mold making costs, long production cycles, and difficulty in achieving complex structures. In particular, for jewelry products with complex designs or high personalized requirements, traditional manufacturing methods often cannot meet the rapid changes in the market and the personalized needs of consumers;

[0005] In order to solve the above problems, this application proposes a high-temperature enamel gold strong-toughness electroforming processing method. Summary of the invention

[0006] The purpose of the present invention is to provide a high-temperature enamel gold strong-toughness electroforming processing method, which solves the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The present invention is a high-temperature enamel gold strong-toughness electroforming processing method, the method comprising the following steps:

[0009] S1. Use conductive photosensitive resin material to manufacture the embryo structure of gold jewelry through photocuring 3D printing technology;

[0010] In the above scheme, during the photocuring 3D printing process, conductive photosensitive resin materials are selected. These materials are mixed with conductive fillers (such as carbon nanotubes or metal particles) to improve their conductive properties, ensuring that they can effectively conduct current and maintain stability during the subsequent electroforming process;

[0011] The process of light-curing 3D printing requires precise control of printing parameters, such as light intensity, curing time and layer thickness. Adjustment of light intensity affects the curing rate of the resin, while curing time determines the curing depth and bonding strength of each layer. The choice of layer thickness directly affects the surface smoothness and precision of the final print;

[0012] When selecting photosensitive resin materials, not only its conductive properties should be considered, but also the balance between its curing speed and mechanical properties. For example, for jewelry designs with complex structures, the printing path and support structure can be optimized to ensure stability during the printing process and the quality of the finished product. In the process of photocuring 3D printing, especially for small sizes and details, the printing parameters need to be adjusted to enhance the structural integrity and surface quality of the printed product;

[0013] After printing, the master needs to be cured and cleaned to remove uncured resin residues. Curing ensures that the resin material is fully cured, enhancing its structural stability and mechanical strength, while improving its wear resistance and pressure resistance. The cleaning step uses special solvents or ultrasonic cleaning technology to completely remove residual resin in preparation for subsequent electroforming processing.

[0014] S2. Placing the conductive resin master obtained by photocuring 3D printing in an electroforming device for electroforming of the gold pattern;

[0015] In the above scheme, the pre-treated light-cured 3D printed master is placed in a dedicated electroforming device. In the device, the surface of the master is ensured to be smooth and evenly coated with conductive contact agent to ensure that the current can be effectively conducted throughout the electroforming process;

[0016] When applying the conductive contact agent, its compatibility with the mother material and good adhesion need to be considered. Selecting a suitable conductive contact agent can not only improve the current conduction efficiency, but also effectively reduce the energy loss and material waste during the electroforming process. After the mother surface treatment is completed, the surface treatment before electroforming, such as mechanical polishing or chemical treatment, can be performed to further improve the surface quality and adhesion of the electroplating layer;

[0017] Selecting a suitable metal electrolyte containing a precise proportion of gold ions to achieve the desired electroplating layer thickness and quality. Adjusting the composition and concentration of the electrolyte is one of the key steps to ensure the success of the electroplating process, directly affecting the appearance and performance of the final product;

[0018] During the electroforming process, it is very important to monitor and adjust the electrolyte to ensure the stability of the current density and electroplating speed. The use of advanced electrolytic equipment and automatic control systems can adjust the electroforming parameters in real time to optimize the thickness uniformity and surface smoothness of the electroplated layer. Circulating filtration of the electrolyte and adding fresh electrolyte can effectively extend the service life of the electroplating solution and reduce the impact of impurities on the quality of the finished product;

[0019] S3. By regulating the electroforming process, the gold coating is evenly deposited on the surface of the mother embryo, and then the resin material is chemically dissolved to obtain the final gold jewelry replica;

[0020] In the above scheme, electroplating demolding technology is used to select appropriate chemical solvents or heat treatment methods to remove the light-cured 3D printing material without damaging the gold electroplating layer. This step requires precise control to ensure that the residual resin material is completely removed from the final product while maintaining the integrity and appearance quality of the electroplating layer;

[0021] In the demolding process, chemical agents that are highly selective to the resin material, such as brominated solvents or organic solvents, can be used to effectively decompose and remove the resin residues. In addition, thermal treatment methods, such as high temperature annealing or hot atmosphere treatment, can also be used to decompose the resin residues into gases or volatiles, thereby achieving the effect of complete removal.

[0022] The present invention has the following beneficial effects:

[0023] The present invention combines the high precision and complex structure processing capability of light-curing 3D printing technology with the high efficiency and manufacturing control of electroforming technology to achieve high-precision, complex and arbitrary structure jewelry processing, bringing new production methods and market competitive advantages to the gold jewelry manufacturing industry;

[0024] The present invention ensures the manufacturing consistency and quality stability of each gold jewelry product through standardized process flow and quality control measures, while ensuring production efficiency;

[0025] The light-curing 3D printing of the present invention can also quickly respond to market demand through customized production, bringing a more flexible and innovative production method to the jewelry industry.

[0026] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a timing diagram of the process flow of the present invention; DETAILED DESCRIPTION

[0029] 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.

[0030] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] See also Figure 1 As shown, the present invention is a high-temperature enamel gold strong-toughness electroforming processing method, the method comprises the following steps:

[0032] Step 1: Photocuring 3D printing resin master embryo;

[0033] In the process of photocuring 3D printing, conductive photosensitive resin materials are selected. These materials improve their conductivity by adding conductive fillers (such as carbon nanotubes or metal particles) to ensure that they can effectively conduct current and maintain stability during the subsequent electroforming process;

[0034] Choose photosensitive resin materials with good light curing and conductive properties, such as Formlabs' Castable Resin series. This series of resins improves conductivity by adding conductive fillers such as carbon nanotubes or metal particles, making it suitable for electroforming. Use Castable Resin and add 5% carbon nanotubes to ensure good conductivity and stability of the mother embryo during the subsequent electroforming process;

[0035] The process of light-curing 3D printing requires precise control of printing parameters, such as light intensity, curing time and layer thickness. Adjustment of light intensity affects the curing rate of the resin, while curing time determines the curing depth and bonding strength of each layer. The choice of layer thickness directly affects the surface smoothness and precision of the final print;

[0036] During the light-curing 3D printing process, the printing parameters such as light intensity, curing time and layer thickness are adjusted to obtain a master mold with high precision and excellent surface quality. For example, the light intensity is set to 150mW / cm 2 , curing time is 10 seconds per layer, layer thickness is 50 microns. Use the light-curing 3D printer with micron-precision DLP (Digital Light Processing) technology to optimize parameters to print out jewelry designs with complex structures, such as micro patterns and details;

[0037] When selecting photosensitive resin materials, not only its conductive properties should be considered, but also the balance between its curing speed and mechanical properties. For example, for jewelry designs with complex structures, the printing path and support structure can be optimized to ensure stability during the printing process and the quality of the finished product. In the process of photocuring 3D printing, especially for small sizes and details, the printing parameters need to be adjusted to enhance the structural integrity and surface quality of the printed product;

[0038] After printing, the master needs to be cured and cleaned to remove uncured resin residues. Curing ensures that the resin material is fully cured, enhancing its structural stability and mechanical strength, while improving its wear resistance and pressure resistance. The cleaning step uses special solvents or ultrasonic cleaning technology to completely remove residual resin and prepare for subsequent electroforming processing;

[0039] The mother embryo is cured and cleaned, and ultraviolet curing is used to ensure that the resin is completely cured. Subsequently, IPA (isopropyl alcohol) or a specific cleaning solvent is used to clean and remove uncured resin residues. The printed mother embryo is placed in a UV curing device for 10 minutes of curing, and then cleaned using IPA immersion and ultrasonic cleaning equipment to ensure a smooth surface without residue.

[0040] Step 2: Gold jewelry electroforming process;

[0041] Place the pre-treated photocurable 3D printed master in a dedicated electroforming device. In the device, ensure that the surface of the master is smooth and evenly coated with conductive contact agent to ensure that the current can be effectively conducted throughout the electroforming process;

[0042] When applying the conductive contact agent, its compatibility with the mother material and good adhesion need to be considered. Selecting a suitable conductive contact agent can not only improve the current conduction efficiency, but also effectively reduce the energy loss and material waste during the electroforming process. After the mother surface treatment is completed, the surface treatment before electroforming, such as mechanical polishing or chemical treatment, can be performed to further improve the surface quality and adhesion of the electroplating layer;

[0043] Selecting a suitable metal electrolyte containing a precise proportion of gold ions to achieve the desired electroplating layer thickness and quality. Adjusting the composition and concentration of the electrolyte is one of the key steps to ensure the success of the electroplating process, directly affecting the appearance and performance of the final product;

[0044] Metal electrolyte, choose a high-purity electrolyte containing an appropriate amount of gold ions, adjust the current density and electroplating time to control the thickness and quality of the electroplated layer. Ensure the stability of the electrolyte and the consistency of the electroplating process. Use a copper sulfate solution containing 0.5 g / L of gold ions in a dedicated electroforming tank, and electroplate at a current density of 0.1 amperes per square centimeter to ensure the uniformity and glossiness of the electroplated layer;

[0045] During the electroforming process, it is very important to monitor and adjust the electrolyte to ensure the stability of the current density and electroplating speed. The use of advanced electrolytic equipment and automatic control systems can adjust the electroforming parameters in real time to optimize the thickness uniformity and surface smoothness of the electroplated layer. Circulating filtration of the electrolyte and adding fresh electrolyte can effectively extend the service life of the electroplating solution and reduce the impact of impurities on the quality of the finished product;

[0046] The electroforming process ensures that the thickness and appearance of the electroplating layer of each product meet the design requirements by regularly monitoring and adjusting the electroplating parameters, such as current density and electroplating time. Spectral analysis and microstructural observation are used to ensure that the quality of the electroplating layer meets the standards. The composition and thickness of the electroplating layer are measured using an X-ray fluorescence analyzer, and the surface uniformity and defect-freeness are checked using a microscope.

[0047] Step 3, electroforming plating demoulding process;

[0048] Using electroplating demolding technology, select the appropriate chemical solvent or heat treatment method to remove the light-cured 3D printing material without damaging the gold electroplating layer. This step requires precise control to ensure that the residual resin material is completely removed from the final product while maintaining the integrity and appearance quality of the electroplating layer;

[0049] Use chemical solvents or heat treatment methods to remove the light-cured 3D printing material without damaging the gold electroplating layer. The selected method should be highly selective for the electroplating layer and be able to effectively remove the resin mother embryo. Use deionized water immersion combined with a temperature-controlled heating demoulding system to control the temperature at 60 degrees Celsius to accelerate the dissolution of the resin material and avoid affecting the electroplating layer;

[0050] In the demolding process, chemical agents that are highly selective to resin materials, such as brominated solvents or organic solvents, can be used to effectively decompose and remove resin residues. In addition, thermal treatment methods, such as high-temperature annealing or hot atmosphere treatment, can also be used to decompose resin residues into gases or volatiles, thereby achieving the effect of complete removal;

[0051] During the demoulding process, the time and temperature of the demoulding process are precisely controlled to ensure that the resin is completely dissolved while maintaining the integrity and appearance quality of the gold electroplating layer. The demoulding process is optimized to achieve the desired product surface smoothness and detail retention. Using a precisely controlled heat treatment system, the mother embryo is placed in a constant temperature bath and gradually heated to 80 degrees Celsius within 12 hours to completely remove the resin without affecting the electroplating layer.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-temperature enamel gold strong and tough electroforming processing method, characterized in that: The method comprises the following steps: S1. Use conductive photosensitive resin material to manufacture the embryo structure of gold jewelry through photocuring 3D printing technology; S2. Placing the conductive resin master obtained by photocuring 3D printing in an electroforming device for electroforming of the gold pattern; S3. By regulating the electroforming process, the gold coating is evenly deposited on the surface of the mother embryo, and then the resin material is chemically dissolved to obtain the final gold jewelry replica.

2. A high temperature enamel gold strong and tough electroforming processing method according to claim 1, characterized in that: The photosensitive resin material is conductive by adding a high-conductive filler or doping a conductive agent.

3. A high temperature enamel gold strong and tough electroforming processing method according to claim 1, characterized in that: The conductive photosensitive resin material has thermal stability and chemical stability.

4. A high temperature enamel gold strong and tough electroforming processing method according to claim 1, characterized in that: The conductive photosensitive resin material ensures performance through thickness and precision control.

5. The high-temperature enamel gold strong-toughness electroforming processing method according to claim 1 is characterized in that: The metal electrolyte in the electroforming equipment contains gold ions, and a uniform gold electroplating layer is formed on the surface of the mother embryo through electrolytic deposition technology.

6. A high temperature enamel gold strong and tough electroforming processing method according to claim 1, characterized in that: During the electroplating process, the thickness and uniformity of the gold plating layer are controlled by controlling the current density and the composition of the electrolyte.

7. The high-temperature enamel gold strong-toughness electroforming processing method according to claim 1 is characterized by: The thickness and surface quality of the gold electroformed layer can be controlled by adjusting the electroforming parameters.

8. The high-temperature enamel gold strong-toughness electroforming processing method according to claim 1 is characterized by: Electroforming plating demoulding technology is used to remove the photosensitive resin material from the final gold jewelry product through chemical dissolution.

9. The high-temperature enamel gold strong-toughness electroforming processing method according to claim 1, characterized in that: The photosensitive resin material used in the light-curing 3D printing technology can be molded on gold jewelry embryos with complex shapes and structures.

10. The high-temperature enamel gold strong-toughness electroforming processing method according to claim 1, characterized in that: It can adapt to the production of gold of different purity.

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