A multi-layer silk inlay process for a medallion

Abstract

The present application relates to a kind of multilayer silk inlaying process for seal, it is characterized in that: the inlaying process includes the following steps: a, multilayer silk production: first production intermediate framework, then set up silk composite layer on the front and back of intermediate framework respectively;B, on the embryo of seal, the metal relief that is cooperated with multilayer silk is produced, and the layout mode between metal relief and multilayer silk is superimposed or adhered;C, using low-temperature welding, multilayer silk and metal relief are connected, and the multilayer silk inlaying process of seal is completed.In implementation, using the way of step-by-step, first complete multilayer silk and the production of metal relief on the surface of seal embryo, then the two are fixedly connected by low-temperature welding.Multilayer, fine and complex seal molding change is realized, not only realize soft, hard combination in material, more different modeling and texture are shown in detail, modeling is rich and varied, and the purity of seal can also be guaranteed.

Description

Technical Field

[0001] This invention relates to the technical field of coin and medal inlay technology, specifically a multi-layer filigree inlay technology for coins and medals. Background Technology

[0002] Filigree inlay is a traditional court craft that can be traced back to the Spring and Autumn and Warring States periods. It mainly uses materials such as gold and silver, and through processes such as setting gemstones and pearls or weaving, it is made into jewelry and other ornaments.

[0003] While filigree is exquisitely beautiful, it can only be produced by hand, resulting in a slow production cycle and high costs, thus limiting its widespread adoption. Furthermore, coin and medal structures, especially commemorative coins, demand extremely high levels of detail in their designs. Effectively combining these two aspects to achieve complex and intricate patterns on a small coin or medal surface presents significant challenges, specifically the following issues: Material hardness and ductility issues: Although precious metals such as gold and silver have good ductility and plasticity, they still encounter material hardening problems during processing, which affects the bending and shaping of the wire. In addition, excessively thin metal wires are prone to melting during high-temperature welding, posing a challenge to the process.

[0004] Welding is technically challenging: In filigree work, welding is typically used to connect different components. However, performing precision welding in a confined space, while ensuring structural stability and maintaining aesthetic appeal, places high demands on welding techniques and equipment.

[0005] Purity issues: Due to the special nature of precious metal medals, the purity requirements are very strict. Traditional welding methods, due to the low silver content in the flux, will result in the purity of the welded parts not meeting the standards.

[0006] Therefore, there is a great need for a technique that can solve the above problems and achieve a perfect integration of filigree inlay and relief design on metal coins and medals. Summary of the Invention

[0007] The purpose of this invention is to provide an improved multi-layer filigree inlay process for coins and medals. Through the improvement of the process, the filigree technique is combined with the metal relief of coin minting to achieve a multi-layered, soft and hard combination coin and medal inlay process.

[0008] To achieve the above objectives, the technical solution of the present invention is: a multi-layer filigree inlay process for coins and medals, characterized in that the inlay process includes the following steps: a) Multi-layer filigree fabrication: first, a central skeleton is made, and then a filigree composite layer is added to the front and back of the central skeleton respectively; b) On the blank body of the coin and medal, a metal relief is made to cooperate with the multi-layer filigree, and the metal relief and the multi-layer filigree are arranged in an overlapping or attached manner; c) Low-temperature welding is used to connect the multi-layer filigree and the metal relief to complete the multi-layer filigree inlay process for the coin and medal.

[0009] Preferably, in step a, the filigree composite layer includes a filigree base mesh layer and a filigree copper wire pattern layer disposed on the filigree base mesh layer; the multi-layer filigree has a total of 5 layers, the middle layer is the middle skeleton, the front and back sides of the middle skeleton are first provided with the filigree base mesh layer, and then the filigree copper wire pattern layer is disposed on the top of the filigree base mesh layer.

[0010] Furthermore, the filigree base layer is composed of interwoven filigrees, and several connecting base points are provided on the filigree base layer. The connecting base points are located at the joints of the interwoven filigrees to increase the contact area between the filigree base layer and the filigree copper wire pattern layer. The connecting base points are circular, triangular or quadrilateral, and have a structure with a lower center and higher sides. The height difference between the two is 0.2-0.5mm.

[0011] Furthermore, in step a, the filigree is made from gold, silver, and copper using a drawing machine, and the diameter of the filigree ranges from 0.1 to 0.5 mm.

[0012] Furthermore, in step a, the filigree is created using techniques such as stacking, layering, braiding, weaving, pinching, filling, and gathering to produce composite layers of filigree with different patterns.

[0013] Furthermore, in step c, the low-temperature welding used is laser welding or micro-arc welding to reduce the thermal impact on the filament structure; the power of laser welding is between 10-50W, and the welding time is 3ms-6s.

[0014] Furthermore, in step a, the intermediate skeleton adopts any of the following structures: a cross-shaped structure, a circular superimposed cross-shaped structure, a structure of two rectangular crosses superimposed on each other, or two circles overlapping each other by 1 / 2 to 1 / 3 of their area.

[0015] Furthermore, the coin's blank and the multi-layered filigree are made of gold or silver of the same purity, making the two materials compatible.

[0016] Compared with the prior art, the technical solution of the present invention not only improves the overall technical solution, but also includes many improvements in details. Specifically, it has the following beneficial effects: 1. The improved scheme of the present invention includes the following steps in the inlay process: a) Multi-layer filigree production: First, a central skeleton is made, and then a filigree composite layer is added to the front and back of the central skeleton respectively; b) On the blank body of the coin, a metal relief is made to cooperate with the multi-layer filigree, and the metal relief and the multi-layer filigree are arranged in an overlapping or attached manner; c) Low-temperature welding is used to connect the multi-layer filigree and the metal relief to complete the multi-layer filigree inlay process of the coin; The entire process adopts the method of integrating filigree and metal relief to achieve multi-layered, intricate and complex shape changes; 2. In the technical solution of the present invention, the multi-layered filigree has a total of 5 layers. The middle layer is the middle skeleton. The front and back sides of the middle skeleton are first set with filigree base mesh layer, and then the filigree copper wire pattern layer is set on the filigree base mesh layer. The multi-layered design makes the filigree structure stable and ensures the fineness of the pattern. It ensures that the finished filigree structure will not melt or deform during the subsequent welding process, thus ensuring the quality of the product. 3. In the structure of this invention, the low-temperature welding used is laser welding or micro-arc welding, which reduces the thermal impact on the filigree structure, ensures the stability of the welded structure, and does not damage the details of the filigree structure and metal relief, thereby improving the precision and quality of the product. 4. The process of this invention is reasonably designed and the product is highly refined. It can realize multi-layered and soft-hard combination coin and medal inlay process, which is easy to promote and use. Attached Figure Description

[0017] Figure 1 This is a process flow diagram of the present invention. Detailed Implementation

[0018] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides a multi-layered filigree inlay technique for coins and medals, see details below. Figure 1 The difference between this and existing technologies lies in the following steps of the inlay process: a) Multi-layer filigree production: First, a central skeleton is made, and then a composite filigree layer is added to the front and back of the central skeleton; b) On the blank of the coin, a metal relief is made to match the multi-layer filigree, and the metal relief and the multi-layer filigree are arranged in an overlapping or attached manner; c) Low-temperature welding is used to connect the multi-layer filigree and the metal relief to complete the multi-layer filigree inlay process of the coin.

[0020] In practice, a step-by-step approach was adopted. First, the multi-layered filigree and the metal relief on the surface of the coin blank were completed separately. Then, the two were fixedly connected using low-temperature welding. This achieves multi-layered, intricate, and complex coin design variations, combining soft and hard materials and showcasing different shapes and textures in detail. The rich and varied designs allow for the display of multiple different techniques on a single coin, no longer limited to simple forms such as engraving and inlay. More importantly, it ensures the purity of the coin; although different techniques are used to create each part of the coin, the overall purity remains consistent after assembly.

[0021] Example In this embodiment, the invention breaks down the complex process into several simple steps and completes them step by step. The inlay process includes the following steps: a) Multi-layer filigree production: First, a central skeleton is made, and then a filigree composite layer is added to the front and back of the central skeleton; b) On the coin blank, a metal relief is made to match the multi-layer filigree, and the metal relief and the multi-layer filigree are arranged in an overlapping or attached manner; c) Low-temperature welding is used to connect the multi-layer filigree and the metal relief to complete the multi-layer filigree inlay process of the coin.

[0022] Specifically, in step a, the filigree composite layer includes a filigree base mesh layer and a filigree copper wire pattern layer set on the filigree base mesh layer; the multi-layer filigree has a total of 5 layers, with the middle layer being the middle skeleton. The filigree base mesh layer is first set on the front and back sides of the middle skeleton, and then the filigree copper wire pattern layer is set on the top of the filigree base mesh layer.

[0023] The filigree base layer is made up of interwoven filigrees. Several connecting base points are provided on the filigree base layer. The connecting base points are set at the joints of the interwoven filigrees to increase the contact area between the filigree base layer and the filigree copper wire pattern layer. The connecting base points are circular, triangular or quadrilateral, with a structure that is lower in the middle and higher on the four sides. The height difference between the two is 0.2-0.5mm.

[0024] In step a, the intermediate skeleton can adopt any of the following structures: a structure of two straight skeletons intersecting in a cross shape; a structure of a circular skeleton with a cross-shaped skeleton superimposed inside; a structure of two rectangular skeletons superimposed in a cross shape; or a structure of two circular skeletons overlapping each other by 1 / 2 to 1 / 3 of their area. These various skeleton forms can correspond to different filigree structures, providing stable support and ensuring that the finished filigree structure is firm and stable, facilitating subsequent processing and shaping.

[0025] A reinforcing layer is provided in the center 1 / 3 area of ​​the intermediate skeleton layer. The reinforcing layer is made of gold or silver foil of the same material as the intermediate skeleton layer and is wrapped around the skeleton. This makes the diameter of the skeleton at the center 1.02-1.1 times the diameter of the rest of the skeleton. The surface of the gold or silver foil is frosted to increase friction and make the intermediate skeleton layer and the filigree base mesh layer firmly connected.

[0026] Furthermore, the filigree is made from gold, silver, and copper using a drawing machine, with a diameter ranging from 0.1 to 0.5 mm. The filigree is created using techniques such as stacking, layering, braiding, weaving, pinching, filling, and assembling to produce composite layers with different patterns.

[0027] In step c, low-temperature welding, such as laser welding or micro-arc welding, is used to reduce the thermal impact on the filigree structure. The laser welding power is between 10-50W, and the welding time is 3ms-6s. Furthermore, the coin blank and the multi-layered filigree are made of gold or silver of the same purity, ensuring material compatibility. Appropriate pretreatment, such as annealing, can also be performed on the materials during production to improve their ductility and plasticity, reducing risks such as excessive breakage during processing.

[0028] Example 2 In this embodiment, a coin with the theme of "Jade Snake and Orchid" needs to be designed. The specific process steps are as follows: a) Multi-layer filigree production: First, make the central skeleton, and then add a filigree composite layer to the front and back of the central skeleton respectively; b) On the coin blank, make a metal relief that works with the multi-layer filigree. The metal relief and the multi-layer filigree are arranged in an overlapping or attached manner; c) Use low-temperature welding to connect the multi-layer filigree and the metal relief to complete the multi-layer filigree inlay process of the coin.

[0029] In practice, the design uses a half-snake as the main element to enhance the visual effect, incorporating the Shanghai magnolia, a local cultural symbol, while also representing the idea of ​​"not going back and forth more than halfway," giving it an impression of mystery and elegance. Combined with the Shanghai magnolia, which represents nobility and purity, the design further showcases a unique magic and exquisite quality, endowing this piece with a one-of-a-kind temperament and taste.

[0030] In step a, the filigree composite layer includes a filigree base layer and a filigree copper wire pattern layer disposed on the filigree base layer; the multi-layer filigree consists of 5 layers in total, with the middle layer serving as the intermediate skeleton. The filigree base layer is first disposed on the front and back sides of the intermediate skeleton, and then the filigree copper wire pattern layer is disposed on top of the filigree base layer. The intermediate skeleton adopts the form of two circles overlapping each other by 1 / 2 to 1 / 3 of their area.

[0031] The filigree base layer is made up of interwoven filigrees. Several connecting base points are provided on the filigree base layer. The connecting base points are set at the joints of the interwoven filigrees to increase the contact area between the filigree base layer and the filigree copper wire pattern layer. The connecting base points have a rhomboid structure with a low center and high sides. The height difference between the two is 0.38mm.

[0032] Furthermore, the filigree is made from gold using a drawing machine, with a diameter of 0.3mm. The filigree is created using techniques such as stacking, layering, braiding, weaving, pinching, filling, and assembling to produce composite layers with different patterns.

[0033] In step c, low-temperature welding using laser welding is employed to minimize the thermal impact on the filigree structure. The laser welding power is between 10-50W, and the welding time is 2 seconds. This ensures the stability of the welded structure without damaging the detailed features of the filigree structure and metal relief, thus improving the product's precision and quality.

[0034] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A multi-layered filigree inlay technique for coins and medals, characterized in that: The inlay process includes the following steps: a) Multi-layer filigree production: First, a central skeleton is made, and then a composite filigree layer is added to the front and back of the central skeleton; b) On the coin blank, a metal relief is made to match the multi-layer filigree, and the metal relief and the multi-layer filigree are arranged in an overlapping or attached manner; c) Low-temperature welding is used to connect the multi-layer filigree and the metal relief to complete the multi-layer filigree inlay process of the coin.

2. The multi-layer filigree inlay technique for coins and medals according to claim 1, characterized in that: In step a, the filigree composite layer includes a filigree base mesh layer and a filigree copper wire pattern layer set on the filigree base mesh layer; the multi-layer filigree has a total of 5 layers, with the middle layer being the middle skeleton. The filigree base mesh layer is first set on the front and back sides of the middle skeleton, and then the filigree copper wire pattern layer is set on the top of the filigree base mesh layer.

3. The multi-layer filigree inlay technique for coins and medals according to claim 2, characterized in that: A reinforcing layer is provided in the center 1 / 3 area of ​​the intermediate skeleton layer. The reinforcing layer is made of gold or silver foil of the same material as the intermediate skeleton layer and is wrapped around the skeleton, so that the diameter of the skeleton at the center is 1.02-1.1 times the diameter of the rest of the skeleton. The surface of the gold or silver foil is frosted, so that the intermediate skeleton layer is firmly connected to the filigree base mesh layer.

4. The multi-layer filigree inlay technique for coins and medals according to claim 2, characterized in that: The filigree base layer is made up of interwoven filigrees. Several connecting base points are provided on the filigree base layer. The connecting base points are set at the joints of the interwoven filigrees to increase the contact area between the filigree base layer and the filigree copper wire pattern layer. The connecting base points are circular, triangular or quadrilateral, with a structure that is lower in the middle and higher on the four sides. The height difference between the two is 0.2-0.5mm.

5. The multi-layer filigree inlay technique for coins and medals according to claim 1, characterized in that: In step a, the filigree is made from gold, silver, and copper using a drawing machine, and the diameter of the filigree ranges from 0.1 to 0.5 mm.

6. The multi-layer filigree inlay technique for coins and medals according to claim 3, characterized in that: In step a, the filigree is created using techniques such as stacking, layering, braiding, weaving, pinching, filling, and gathering to produce composite layers of filigree with different patterns.

7. The multi-layer filigree inlay technique for coins and medals according to claim 1, characterized in that: In step c, the low-temperature welding used is laser welding or micro-arc welding to reduce the thermal impact on the filament structure; the power of laser welding is between 10-50W, and the welding time is 3ms-6s.

8. The multi-layer filigree inlay technique for coins and medals according to claim 1, characterized in that: In step a, the intermediate skeleton can adopt any of the following structures: a cross structure, a circular superimposed cross structure, a structure of two rectangular crosses superimposed on each other, or two circles overlapping each other by 1 / 2 to 1 / 3 of their area.

9. The multi-layer filigree inlay technique for coins and medals according to claim 1, characterized in that: The blank of the coin and the multi-layered filigree are made of gold or silver of the same purity, making the two materials compatible.

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