A manufacturing process of chiseled tire filled with high-temperature hard transparent enamel

By mechanically processing the base, strictly controlling the firing time and temperature, combined with computer plate making and fine engraving technology, the problem of colored glaze and transparent glaze layer interfusion and mixing colors in the enamel filling process of the enamel, realizing the recovery and simplification of high-temperature hard transparent enamel, demonstrating a high-level aesthetic of enamel production.

CN117286495BActive Publication Date: 2025-07-29SHANDONG LANGQI LUO ARTS & CRAFTS CO LTD
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Patent Information

Application Number
CN202311276568.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-10-04
Publication Date
2025-07-29
Estimated Expiration
2043-10-04

AI Technical Summary

Technical Problem

The high-temperature hard transparent enamel process for filling the enamel in the chisel has been lost, and the colored glaze and transparent glaze layer are easily melted and mixed in color during the firing process, resulting in cotton-like colored glaze on the surface of the utensil, which is difficult to recover and reproduce.

Method used

Mechanical processing is used instead of hand-made bottom texture, and the firing time and temperature are strictly controlled. Through multiple firing and precise laying of transparent glaze layers, we ensure that the colored flower leaves and transparent glaze layers are not mixed. We combine computer plate making and fine engraving technology to make flower leaves to simplify the process flow.

Benefits of technology

The high-temperature hard transparent enamel process of filling the chisel is successfully restored and improved, so that the colored glaze bottom glaze and flowers and leaves are distinct in colors and realistic in shape, reducing the difficulty and cost of the process, making the enamel objects colorful and dazzling, reflecting high-level enamel making technology.

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Abstract

The present invention relates to the technical field of enamel production, and specifically, to a production process of high-temperature hard transparent enamel filled in chased metal. The process includes the following steps: 1. Produce an enamel base with a background pattern; 2. Cover with transparent enamel glaze; 3. Fire the enamel base for the first time; 4. Fire the enamel base for the second time; 5. Produce gold flower leaves and silver flower leaves; 6. Fire the colored flower pieces; 7. Apply the flower pieces; 8. Fire the transparent glaze. The present invention has successfully restored the lost production process of high-temperature hard transparent enamel filled in chased metal. By strictly controlling the firing time and temperature, the biggest difficulty of mutual fusion and color mixing of high-temperature hard transparent enamel filled in chased metal has been overcome. At the same time, the production process has been simplified, greatly reducing the process difficulty and production cost, making it more acceptable to the public, and showing the colorful, dazzling and looming beauty of enamel filled in chased metal to the world, reflecting the progress and the highest level of China's enamel production technology.
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Description

Technical Field

[0001] The present invention relates to the technical field of enamel production, and specifically, to a production process of high-temperature hard transparent enamel filled in engraved metal. Background Art

[0002] Engraved metal filled with enamel, commonly known as Guangzhou transparent enamel, represents the highest level of enamel production during the Qing Dynasty in China. During the Qing Dynasty, Guangzhou produced the most varieties and the best quality of enamel. Among them, the varieties can be divided into: cloisonné enamel, painted enamel, engraved metal enamel, transparent enamel, and medium-color enamel.

[0003] Engraved metal filled with enamel is a process that combines the transparent enamel process and the engraved metal enamel process, and gold flakes, silver flakes, and colored flower flakes are additionally filled in it. Therefore, this enamel is habitually referred to as Guang enamel or Guangzhou transparent enamel by the public, and the recognized academic name of this process in the enamel industry is engraved metal filled with enamel.

[0004] Engraved metal filled with enamel is colorful and dazzling. Through the transparent glaze on the surface, the patterns engraved on the base can be seen, as well as the gold, silver, and colored flower leaves and the patterns on the flower leaves on the base pattern, that is, through the surface transparent glaze, the faint base pattern and the gold, silver, and colored flower leaves can be seen. Looking through the light, it is like a fleeting image, making the utensils shine with luster and look extremely beautiful. Engraved metal filled with enamel can be used to make various objects such as bottles, boxes, plates, bowls, furniture, clocks, cosmetic boxes, accessories, and pendants. Due to the high production difficulty, hard transparent enamel is mostly inlaid on objects in the form of inlays.

[0005] Engraved metal filled with enamel is divided into high-temperature hard transparent enamel and high-temperature hard transparent enamel. Currently, there are no two enamel objects on the market, and the production processes of both enamels have been lost. There are only very few enamel objects of engraved metal filled with enamel in the Qing imperial palace, and most of them are collected in the Palace Museum. After extensive research and verification, the process of engraved metal filled with enamel in the Qing Dynasty was complex, delicate, and had many procedures. The engraved patterns on the base and the filled flower leaf patterns were all handmade, consuming time, labor, and materials, and having a high cost. Especially for the hard transparent enamel fired at high temperature, the production was even more difficult. During the firing process of high-temperature hard transparent enamel, the colors of the colored glaze, the surface transparent glaze layer, and other colored glazes were very easy to melt and mix with each other, that is, cotton-like colored glaze appeared in the transparent glaze, and many enamel production craftsmen could not solve this problem.

[0005]

[0006] In order to restore and continue the process of engraved metal filled with enamel, to enable the public to appreciate the beauty of engraved metal filled with enamel, and to meet the need for enamel in the high-end art clocks produced by our factory, after a long time of research and development, the production process and flow of hard transparent enamel of engraved metal filled with enamel have been successfully developed. Summary of the Invention

[0007] The object of the present invention is to provide a production process for inlaid high-temperature hard transparent enamel in the chased tire to solve the above technical problems.

[0008] To solve the above problems, the technical solution adopted by the present invention is:

[0009] A production process for inlaid high-temperature hard transparent enamel in the chased tire includes the following steps:

[0010] 1. Making an enamel base tire with a background pattern: Select a pure silver sheet or copper with silver foil paper to make the enamel base tire;

[0011] Silver base tire: On a silver sheet with a thickness of 1 mm - 1.5 mm or a special-shaped silver tire, use a flower-shaped chisel to hammer or mechanically produce a pattern, which is used as the base tire for standby;

[0012] Copper with silver foil paper base tire: On a copper plate with a thickness of 1 mm - 2 mm or a special-shaped copper tire, use a flower-shaped chisel to hammer or mechanically produce a pattern, and then stick two layers of silver foil paper with a thickness of 5 μm on this copper plate or copper tire, which is used as the base tire for standby;

[0013] 2. Laying transparent enamel glaze: Use a writing brush or a glass straw to suck the transparent enamel glaze and lay it on the enamel base tire made in step 1; the glaze should be laid evenly with a thickness of 1 mm - 1.5 mm; use a paper towel to absorb the excess water, dry it at room temperature or dry it with an electric furnace or an oven; ensure it is dry for standby;

[0014] 3. First firing the enamel base tire: Turn on the electric furnace, set the upper limit temperature of the electric furnace to 650 °C and the lower limit temperature to 640 °C; when the temperature of the electric furnace rises to 645 °C, put the enamel base tire covered with transparent enamel glaze and dried in step 2 into the electric furnace for firing for 5 - 6 minutes; due to the inertia of the electric furnace temperature rise, the electric furnace temperature will rise above 660 °C. When the electric furnace temperature shows 656 °C - 662 °C, take out the fired enamel base tire, cool it and use it for standby;

[0015] 4. Second firing the enamel base tire: Repeat the operation of step 2 on the enamel base tire that has been fired for the first time and cooled in step 3, that is, lay another layer of transparent enamel glaze with the same color and a thickness of 1 mm - 1.5 mm on the base tire; then, repeat the operation of step 3 to achieve the required color and effect, that is, complete the firing of the bottom layer glaze of the enamel base tire;

[0016] 5. Making gold flower leaves and silver flower leaves: Select a flower-shaped chisel with the required texture, place the flower-shaped chisel on a gold sheet with a thickness of 0.007 mm - 0.01 mm and a silver sheet with a thickness of 0.03 mm - 0.05 mm, and use a hammer to knock and smash the gold sheet and silver sheet to make gold flower leaves and silver flower leaves for standby;

[0017] 6. Firing colored flower pieces

[0018] 6A. Select some of the honeysuckle leaves made in Step 5 and paste them flat on the stainless steel wire mesh with a 1:20 diluted liquid of shippo-yaki binder.

[0019] 6B. Dip a fine brush into the colored glaze in distilled water and dot it on the honeysuckle leaves with a thickness of 0.5 mm, and the thickness of the glaze is 1 mm - 1.5 mm; then, place the honeysuckle leaves in an oven or electric furnace at 50 °C and dry them for 30 - 50 minutes to thoroughly dry the glaze surface.

[0020] 6C. Put it into an electric furnace with the temperature range set at 640 °C - 650 °C and fire for 4 minutes. When the temperature reaches 650 °C - 655 °C, take it out and let it cool naturally.

[0021] 6D. Use a fine brush to repair the edges of the fired colored flower leaves that have no glaze color.

[0022] 6E. Repeat Step 6C to conduct the second firing on the colored flower pieces.

[0023] 6F. In order to prevent the glaze color of the colored flower pieces from melting with the transparent layer on the surface, dip a fine brush into the transparent glaze in distilled water and dot it on the fired colored flower pieces in (6E) with a thickness of 0.5 mm; then, place the colored flower pieces in an oven or electric furnace at 50 °C and dry them for 30 - 50 minutes to thoroughly dry the glaze surface; then put them into an electric furnace with the temperature range set at 640 °C - 650 °C and fire for 4 minutes. When the temperature reaches 650 °C - 655 °C, take it out and let it cool naturally for standby.

[0024] 7. Decal application: Paste the golden flower leaves, silver flower leaves made in Step 5 and the colored flower pieces made in 6F on the enamel base body glaze surface fired in Step 4; the specific operations are as follows:

[0025] 7A. Dip a toothpick into a 1:600 diluted liquid of shippo-yaki binder and dot it on the part of the enamel base body glaze surface where the decal is to be applied.

[0026] 7B. Use tweezers to pick up the required golden flower leaves, silver flower leaves, colored flower pieces and gold wires or gold-plated copper wires, place them on the enamel base body glaze surface for arranging the flower leaves; place them in an environment at 50 °C and dry to achieve a slight bonding effect so that when holding the enamel base body, the arranged flower patterns will not be disordered.

[0027] 7C. Put the enamel base body with the flower leaves bonded into an electric furnace with the temperature range set at 640 °C - 650 °C and fire for 3 - 4 minutes. When the temperature reaches 650 °C, take it out and let it cool naturally; at this time, the golden flower leaves, silver flower leaves, colored flower pieces and gold wires or gold-plated copper wires are firmly bonded to the enamel base body glaze surface.

[0028] 8. Fire the transparent glaze

[0029] 8A. Use a brush or glass straw to completely cover the enamel base, gold flower pieces, silver flower leaves, colored flower pieces, and gold or gold-clad copper wire with transparent enamel glaze, with a thickness of ≤1mm. Air dry at room temperature or bake in an electric furnace or oven. Then, place the enamel piece in an electric furnace set at a temperature range of 640℃-650℃ and fire for 5-6 minutes. When the furnace temperature reaches 656℃-662℃, remove the enamel piece and let it cool naturally.

[0030] 8B. Repeat step 8A 3-5 times until the thickness of the transparent glaze increases to 1.5mm, thus completing the production of the chiseled body filled with high-temperature hard transparent enamel.

[0031] Preferably, in step 1, the method for making the copper plus silver foil base is as follows: first, apply low-temperature ceramic glaze on the copper plate or special-shaped copper base, then bake the back thereof with an open flame to 650°C-750°C to melt the ceramic glaze, so that the surface of the copper plate or special-shaped copper base has a thin layer of uniform glaze; after cooling, spray a 1:600 cloisonné adhesive dilution on the surface thereof, and spread a 5μmm thick wrinkled silver foil with micropores on the surface of the copper plate or special-shaped copper base; then press foam cotton on the surface of the silver foil, and compact the silver foil with hydraulic equipment; put it in an oven and bake it at a temperature of 50°C-70°C for 30 minutes to bake out the moisture After drying, bake the back of the paper with an open flame to 650-750°C to melt the ceramic glaze again and firmly bond the silver foil. After cooling, spray a 1:600 diluted cloisonné adhesive on the surface of the silver foil. Then, use the above method to add a layer of 5μmm thick wrinkled silver foil with micropores on the surface of the silver foil. After compacting, put it in an oven and bake it dry at 50-70°C. After drying, put it in an electric furnace and bake it at 650-660°C for 4 minutes. After taking it out, quickly press it with zirconium-containing ceramic fiber cotton that can withstand high temperatures of 1600°C. The copper and silver foil base is made.

[0032] Preferably, in step 2, air-dry at room temperature for 5 hours; bake in an electric stove or oven at a temperature of 50° C. to 60° C. for 20 to 30 minutes.

[0033] Preferably, in step 5, the flower shape of the flower leaf is replaced by computer plate making, specifically: first, a 3D concave image of the required flower leaf is made on a computer using mapping software, and the 3D concave images of various styles of flower shapes are arranged closely; then the image is output to a fine engraving machine, and a concave flower-shaped plate surface is engraved on a steel block by the fine engraving machine; after the engraving is completed, the steel block is quenched to increase the hardness; a gold or silver sheet is placed on the steel surface with the concave flower shape, and the gold or silver sheet is covered with a plastic oil film; then a 2mm thick transparent hard rubber is placed on it, and the hard transparent rubber is evenly struck with a hammer, and the gold or silver sheet is observed to be broken through the transparent rubber; if it is not completely broken, it needs to be manually trimmed with a sharp knife.

[0034] Beneficial effects: Through long-term research and development, the present invention has successfully restored the lost production process of high-temperature hard transparent enamel filling in intaglio on metal, and made many improvements. By strictly controlling the firing time and temperature, the biggest difficulty of mutual fusion and color mixing of high-temperature hard transparent enamel filling in intaglio on metal has been overcome, achieving the effect that the color of the colored glaze bottom glaze and the colored flower leaves are distinct and the shape is vivid. At the same time, the production process has been simplified, greatly reducing the process difficulty and production cost, making it more acceptable to the public, and showing the colorful, dazzling and looming beauty of enamel filling in intaglio on metal to the world, reflecting the progress and the highest level of China's enamel production technology. Specific implementation manners

[0035] The present invention will be further described below in conjunction with specific implementation manners.

[0036] Embodiment:

[0037] The production process of high-temperature hard transparent enamel filling in intaglio on metal described in this embodiment includes the following steps:

[0038] 1. Making an enamel base with a background pattern: Select a pure silver sheet or copper with silver foil paper to make the enamel base.

[0039] Silver base: On a silver sheet with a thickness of 1 mm - 1.5 mm or a special-shaped silver blank, use a flower-shaped chisel to hammer or mechanically make a pattern, which is used as the base for standby; the silver base is made of pure silver material, and the cost is relatively high.

[0040] Copper with silver foil paper base: On a copper plate with a thickness of 1 mm - 2 mm or a special-shaped copper blank, use a flower-shaped chisel to hammer or mechanically make a pattern, and then stick two layers of 5 μm thick silver foil paper on this copper plate or copper blank, which is used as the base for standby. The production method of the copper with silver foil paper base is as follows:

[0041] First, apply low-temperature ceramic glaze on the copper plate or special-shaped copper base, then use open flame to bake its back, bake to 650℃-750℃ to melt the ceramic glaze, so that the surface of the copper plate or special-shaped copper base has a thin layer of uniform glaze; after cooling, spray 1:600 cloisonné adhesive dilution on its surface, and spread 5μmm thick and microporous wrinkled silver foil on the surface of the copper plate or special-shaped copper base; then press foam cotton on the surface of the silver foil and compact the silver foil with hydraulic equipment; put it in the oven and bake it at a temperature of 50℃-70℃ for 30 minutes to dry out the moisture; after drying, bake its back with open flame again. The surface is baked to 650℃-750℃ to melt the ceramic glaze again and firmly bond the silver foil. After cooling, a 1:600 diluted cloisonné adhesive is sprayed on the surface of the silver foil. Then, a layer of 5μmm thick wrinkled silver foil with micropores is added to the surface of the silver foil using the above method. After compaction, it is placed in an oven and dried at a temperature of 50℃-70℃. After drying, it is placed in an electric furnace and fired at a temperature of 650℃-660℃ for 4 minutes. After taking it out, it is quickly pressed by hand with zirconium-containing ceramic fiber cotton that can withstand high temperatures of 1600℃. This completes the production of the copper and silver foil base.

[0042] During the Qing Dynasty, the bottom tread pattern was formed manually by hammering a chisel with a hammer. The present invention improves the process by using a variety of machines, such as lathes, stamping, hydraulics, etc. to produce the bottom tread pattern, thereby greatly saving labor and reducing costs.

[0043] 2. Apply transparent enamel glaze: Use a brush or glass straw to absorb the transparent enamel glaze and apply it on the enamel base made in step 1; the glaze should be applied evenly, with a thickness of 1mm-1.5mm; use a paper towel to absorb excess water, dry it at room temperature (it takes 5 hours to dry it in the sun) or use an electric stove or oven to dry it (baking temperature: 50℃-60℃, baking time: 20-30 minutes); make sure it is dry and set aside.

[0044] 3. Firing the enamel base for the first time: Turn on the electric furnace, set the upper temperature limit to 650℃ and the lower temperature limit to 640℃; when the temperature of the electric furnace rises to 645℃, put the enamel base covered with transparent enamel glaze and dried in step 2 into the electric furnace and fire for 5-6 minutes; due to the inertia of the electric furnace heating, the temperature of the electric furnace will rise to above 660℃. When the temperature of the electric furnace displays 656℃-662℃, take out the fired enamel base and cool it for later use; the temperature and time in this step must be strictly controlled.

[0045] 4. Firing the enamel base for the second time: Repeat step 2 on the enamel base that has been fired for the first time and cooled in step 3, that is, spread a layer of transparent enamel glaze of the same color with a thickness of 1mm-1.5mm on the base; then, repeat step 3 to achieve the desired color and effect, that is, complete the firing of the bottom layer of colored glaze of the enamel base.

[0046] 5. Make gold flower leaves and silver flower leaves: Choose a flower-shaped chisel with the required texture, place the flower-shaped chisel on a gold sheet with a thickness of 0.007mm-0.01mm or a silver sheet with a thickness of 0.03mm-0.05mm, and hit the gold sheet and silver sheet with a hammer to make gold flower leaves and silver flower leaves, and set aside.

[0047] As an improvement, the leaf patterns are computer-generated. Specifically, a 3D concave pattern of the desired leaf is created using graphics software on a computer. These 3D concave patterns of various flower patterns are then closely arranged. This pattern is then output to a precision engraving machine, which carves the concave flower pattern onto a steel block. After engraving, the steel block is quenched to increase its hardness. A gold or silver sheet is placed on the steel surface with the concave flower pattern and covered with a film of plastic oil. A 2mm-thick sheet of transparent hard rubber is then placed on top. The hard rubber is struck evenly with a hammer, and the gold or silver sheet is observed through the rubber to see if it breaks. If it does not completely break, it is manually trimmed with a sharp knife. This method of producing leaf patterns saves time and labor, significantly reducing costs and materials.

[0048] 6. Firing colored flower pieces

[0049] 6A. Select some of the silver flower leaves produced in step 5 and apply them flatly to the stainless steel wire mesh using a 1:20 dilution of cloisonné adhesive.

[0050] 6B. Use a fine brush to dip the colored glaze in distilled water and apply it to the leaves of the silver flower at a thickness of 0.5mm. The thickness of the glaze should be 1mm-1.5mm. Then, place the silver flower leaves in an oven or electric furnace at 50℃ to dry for 30-50 minutes to make the glaze dry thoroughly.

[0051] 6C. Place in an electric furnace set at a temperature of 640-650°C and bake for 4 minutes. When the temperature reaches 650-655°C, take it out and let it cool naturally.

[0052] 6D. Use a fine brush to repair the edges of the fired colored flowers and leaves without glaze color;

[0053] 6E. Repeat step 6C to fire the colored flower pieces a second time;

[0054] 6F. To prevent the glaze color of the colored flower pieces from mixing with the transparent layer on the surface, use a fine brush to dip into the transparent glaze in distilled water and dot it onto the fired colored flower pieces (6E) with a thickness of 0.5 mm. Then, place the colored flower pieces in an oven or electric furnace at 50 °C and dry them for 30 - 50 minutes until the glaze surface is completely dry. Next, put them into an electric furnace with a temperature range set at 640 °C - 650 °C and fire for 4 minutes. When the temperature reaches 650 °C - 655 °C, take them out and let them cool naturally. After firing, the thin transparent layer plays a decisive role in protecting the glaze colors from mixing.

[0055] 7. Decal application: Stick the golden flower leaves, silver flower leaves prepared in step 5 and the colored flower pieces prepared in step 6F on the enamel base body glaze surface after firing in step 4. The specific operation is as follows:

[0056] 7A. Dip a toothpick into the 1:600 diluted liquid of Shippo bonding agent and dot it on the part of the enamel base body glaze surface where the decal is to be stuck.

[0057] 7B. Use tweezers to pick up the required golden flower leaves, silver flower leaves, colored flower pieces and gold wires or gold-plated copper wires, place them on the enamel base body glaze surface for arranging the flower leaves. Place them in an environment at 50 °C to dry until a slightly adhesive effect is achieved, so that when handling the enamel base body, the arranged flower patterns will not be disordered.

[0058] 7C. Put the enamel base body with the flower leaves stuck on it into an electric furnace with a temperature range set at 640 °C - 650 °C and fire for 3 - 4 minutes. When the temperature reaches 650 °C, take it out and let it cool naturally. At this time, the golden flower leaves, silver flower leaves, colored flower pieces and gold wires or gold-plated copper wires are firmly stuck on the enamel base body glaze surface.

[0059] 8. Firing the transparent glaze

[0060] 8A. Use a brush or glass straw to fully cover the enamel base body glaze surface, golden flower pieces, silver flower leaves, colored flower pieces and gold wires or gold-plated copper wires with transparent enamel glaze, with a thickness ≤ 1 mm. Air dry at room temperature or dry using an electric furnace or oven. Then, put it into an electric furnace with a temperature range set at 640 °C - 650 °C and fire for 5 - 6 minutes. When the electric furnace temperature reaches 656 °C - 662 °C, take out the enamel piece and let it cool naturally.

[0061] 8B. Repeat step 8A 3 - 5 times so that the thickness of the covered transparent glaze increases to 1.5 mm, and the production of the high-temperature hard transparent enamel filled in the chased base is completed.

[0062] It should be noted that the transparent glaze should not be too thick. The transparent glaze covering the concave parts is thicker, while that covering the convex parts is thinner. The purpose is to make the surface of the transparent glaze flat while thickening it. If the transparent glaze is too thick, a large number of bubbles will be generated during the firing process. Each layer of the transparent glaze covered needs to be fired in an electric furnace. The thickness required is based on covering the raised cloisonné enamel flower leaves with a layer of transparent glaze. Since the firing effect on the surface of the cloisonné enamel with inlaid high-temperature hard transparent enamel is more transparent and bright, in order to ensure a more transparent and bright surface, it is not easy to polish the surface anymore. It is normal for there to be slightly concave and convex surfaces and slightly raised areas at the colored flower leaves.

[0063] The traditional manufacturing process of cloisonné enamel with inlaid high-temperature hard transparent enamel has been lost because it is extremely complex with numerous steps. Now, many enamel craftsmen want to restore it but encounter difficult problems to solve, that is, the color of the colored flower leaves in the bottom glaze and the color of the surface transparent glaze mutually fuse and mix, that is, there are cotton-like colored glazes in the transparent glaze.

[0064] Through long-term research and development, the present invention has successfully restored the lost manufacturing process of cloisonné enamel with inlaid high-temperature hard transparent enamel and made many improvements. By strictly controlling the firing time and temperature, the biggest difficulty of mutual fusion and mixing of cloisonné enamel with inlaid high-temperature hard transparent enamel (the adhesion between the transparent glaze and the colored glaze does not mix colors or is invisibly mixed into one color) has been overcome, achieving the effect that the colored glaze bottom glaze and the colored flower leaves have distinct colors and lifelike shapes. At the same time, the manufacturing process has been simplified, greatly reducing the process difficulty and manufacturing cost, making it more acceptable to the public, and showing the colorful, dazzling and looming beauty of cloisonné enamel to the world, reflecting the progress and the highest level of China's enamel manufacturing technology.

[0065] The above has shown and described the basic principles, main features and technical effects of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. A manufacturing process for high-temperature hard transparent enamel filled inside a chiseled tire, characterized in that: It includes the following steps: (1) Making an enamel base with shading: Select a pure silver sheet or copper with silver foil paper to make the enamel base; Silver base: On a silver sheet with a thickness of 1mm - 1.5mm or a special-shaped silver blank, use a flower-shaped chisel to hammer or mechanically produce patterns as the base for standby; Copper with silver foil paper base: On a copper plate with a thickness of 1mm - 2mm or a special-shaped copper blank, use a flower-shaped chisel to hammer or mechanically produce patterns, and then stick two layers of 5μm thick silver foil paper on this copper plate or copper blank as the base for standby; (2) Laying transparent enamel glaze: Use a brush or glass straw to suck the transparent enamel glaze and lay it on the enamel base made in step (1); the glaze should be laid evenly with a thickness of 1mm - 1.5mm; absorb the excess water with a tissue paper and dry it at room temperature or use an electric furnace or oven to dry it; Ensure it is dried and reserved for use; (3) First firing of the enamel base: Turn on the electric furnace, set the upper limit temperature of the electric furnace to 650°C and the lower limit temperature to 640°C; when the temperature of the electric furnace rises to 645°C, put the enamel base covered with transparent enamel glaze and dried in step (2) into the electric furnace for firing for 5 - 6 minutes; due to the inertia of the electric furnace temperature rise, the electric furnace temperature will reach above 660°C. When the electric furnace temperature shows 656°C - 662°C, take out the fired enamel base, cool it and reserve it for use; (4) Second firing of the enamel base: Repeat the operation of step (2) on the enamel base that has been fired for the first time and cooled in step (3), that is, lay another layer of the same-color transparent enamel glaze with a thickness of 1mm - 1.5mm on the base; then, repeat the operation of step (3) to achieve the required color and effect, that is, complete the firing of the bottom glaze of the enamel base; (5) Making gold flower leaves and silver flower leaves: Select a flower-shaped chisel with the required texture, place the flower-shaped chisel on a gold sheet with a thickness of 0.007mm - 0.01mm and a silver sheet with a thickness of 0.03mm - 0.05mm, and use a hammer to knock and make gold flower leaves and silver flower leaves for standby; (6) Firing colored flower pieces (6A) Select some silver flower leaves made in step (5) and stick them flat on a stainless steel wire mesh with a 1:20 diluted solution of shippo firing binder; (6B) Dip a fine brush into the colored glaze in distilled water and dot it on the silver flower leaves with a thickness of 0.5mm, and the glaze thickness is 1mm - 1.5mm; then, place the silver flower leaves in an oven or electric furnace at 50°C and dry them for 30 - 50 minutes to thoroughly dry the glaze surface; (6C) Put it into an electric furnace with a temperature range set at 640°C - 650°C and fire it for 4 minutes. When the temperature reaches 650°C - 655°C, take it out and cool it naturally; (6D) Use a fine brush to repair the edges of the fired colored flower leaves without glaze; (6E) Repeat step (6C) to conduct the second firing of the colored flower pieces; (6F) To prevent the glaze color of the colored flower piece from mixing with the transparent layer on the surface, use a fine brush to dip the transparent glaze in distilled water and apply it to the fired colored flower piece (6E) with a thickness of 0.5 mm. Then, place the colored flower piece in an oven or electric furnace at 50°C and dry it for 30-50 minutes to completely dry the glaze surface. Then, place it in an electric furnace set at a temperature range of 640°C-650°C and fire it for 4 minutes. When the temperature reaches 650°C-655°C, take it out, cool it naturally, and set aside. (7) Decorating: The gold and silver flower leaves obtained in step (5) and the colored flower pieces obtained in step (6F) are applied to the enamel base glaze surface fired in step (4). The specific operation is as follows: (7A) Use a toothpick to dip a 1:600 dilution of cloisonné adhesive into the enamel base glaze where the decal is to be applied. (7B) Use tweezers to pick up the desired gold and silver flower leaves, colored flower petals, and gold or gold-coated copper wire, and arrange them on the glaze surface of the enamel base. Dry at 50°C to achieve a slight bonding effect so that the arranged flower patterns will not be disturbed when the enamel base is handled. (7C) Place the enamel base with the flower leaves bonded thereto in an electric furnace set at a temperature of 640°C-650°C and fire for 3-4 minutes. When the temperature reaches 650°C, remove the base and allow it to cool naturally. At this time, the gold and silver flower leaves, colored flower pieces and gold or gold-clad copper wires are firmly bonded to the enamel base glaze surface; (8) Firing transparent glaze (8A) Using a brush or glass pipette, apply a transparent enamel glaze to the entire enamel base, gold flower pieces, silver flower leaves, colored flower pieces, and gold or gold-clad copper wire, with a thickness of ≤1 mm; air-dry at room temperature or bake in an electric furnace or oven; then, place the enamel piece in an electric furnace set at a temperature range of 640°C-650°C and fire for 5-6 minutes. When the furnace temperature reaches 656°C-662°C, remove the enamel piece and allow it to cool naturally; (8B) Repeat step (8A) 3-5 times until the thickness of the transparent glaze increases to 1.5 mm, completing the production of high-temperature hard transparent enamel filled in the chiseled body.

2. The manufacturing process of chiseled tire filled with high-temperature hard transparent enamel according to claim 1, characterized in that: In step (1), the method for preparing the copper and silver foil base is as follows: First, apply low-temperature ceramic glaze to the copper plate or special-shaped copper base, then bake the back of the copper plate or special-shaped copper base with an open flame to 650℃-750℃ to melt the ceramic glaze, so that the surface of the copper plate or special-shaped copper base has a thin and even glaze. After cooling, spray the surface with a 1:600 diluted cloisonné adhesive. Then, apply 5μmm thick, microporous, wrinkled silver foil on the surface of the copper plate or special-shaped copper base. Then, press foam cotton on the surface of the silver foil and compact it with hydraulic equipment. Place the copper plate or special-shaped copper base in an oven and bake it at 50℃-70℃ for 30 minutes to dry out the moisture. After drying, bake the back of the copper plate or special-shaped copper base with an open flame to 650℃-750℃ to melt the ceramic glaze again and firmly bond the silver foil. After cooling, spray a 1:600 diluted solution of Shippo bonding agent on the surface of the silver foil paper. Then, using the above method, add a layer of wrinkled silver foil paper with a thickness of 5 μm and fine pores on the surface of the silver foil paper. After compaction, put it into an oven and bake dry the moisture at a temperature of 50°C - 70°C; after drying, put it into an electric furnace and fire it at a temperature of 650°C - 660°C for 4 minutes; after taking it out, quickly press it once with zirconia ceramic fiber cotton resistant to 1600°C by hand, and the production of the copper plus silver foil paper base is completed.

3. The manufacturing process of high-temperature hard transparent enamel filled in the chased tire according to claim 1, characterized in that: In step (2), air dry for 5 hours at room temperature; use an electric furnace or an oven to bake dry, baking temperature: 50°C - 60°C, baking time: 20 - 30 minutes.

4. The manufacturing process of high-temperature hard transparent enamel filled in the chased tire according to claim 1, characterized in that: In step (5), the flower shape of the flower leaf is replaced by computer plate making. Specifically: first, use drawing software on the computer to create a 3D concave map of the required flower leaf, and arrange the 3D concave maps of various flower shapes closely; then output it to a precision engraving machine, and engrave the sunken flower-shaped plate surface on the steel block through the precision engraving machine; after engraving, quench the steel block to increase its hardness; place the gold or silver sheet on the steel surface with the sunken flower shape, and cover the gold or silver sheet with a plastic oil film; then place a 2-mm-thick transparent hard rubber on it, and evenly strike the hard transparent rubber with a hammer. Observe through the transparent rubber that the struck gold or silver sheet breaks and forms. If it does not break completely, it needs to be trimmed manually with a sharp knife.

Citation Information

Patent Citations

  • Silver-body light-transmitting enamel and manufacturing process thereof

    CN112776524A

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    JP2008120885A