High-transmittance ceramics and their preparation process

Abstract

The present application relates to high light transmission ceramic and its preparation process, relate to ceramic technical field, including inner blank and outer blank, the inner blank and the outer blank are bonded through inner adhesive layer, the inner blank and the outer blank and inner adhesive layer combination form the blank, the inner blank and the outer blank are far away from one side and are coated with glaze and are sintered into glaze body, the inner blank and the outer blank are made of the same material, the composition material of inner adhesive layer is transparent glass microsphere, nano silica gel particle and nano cesium tungsten oxide powder, the composition material of glaze body is quartz, feldspar, kaolin, borax, calcium oxide and talc, through the inner blank and the outer blank, after sintering respectively, through inner adhesive layer, composite, fault tolerance is high, avoid the problem of existence tiny flaw and lead to scrap, and through nano silica gel particle and nano cesium tungsten oxide powder in inner adhesive layer, improve the heat insulation performance, have the advantages of high light transmission, high strength, high heat insulation and smooth touch, convenient for production and application in ceramic products used in daily life.

Description

Technical Field

[0001] This invention relates to the field of ceramic technology, and in particular to high-transmittance ceramics and their preparation process. Background Technology

[0002] High-transparency ceramics are a type of ceramic material with high light transmittance. This ceramic material is manufactured using special processes and techniques, resulting in high transparency and gloss. High-transparency ceramics offer many advantages, such as high transparency, high hardness, high strength, high wear resistance, and high chemical stability. They are widely used in everyday consumer goods, such as bowls, plates, and cups. When high-transparency ceramics are used in their manufacture, the resulting everyday products are more aesthetically pleasing and easier to use.

[0003] For example, Chinese invention patent CN108793955B discloses a high-transmittance celadon glaze ceramic product and its preparation process, which includes a body and a glaze. The body includes: 10-12 parts of quartz, 6-9 parts of sodium feldspar, 42-55 parts of kaolin, 18-26 parts of potassium feldspar, 12-18 parts of clay, 1-3 parts of talc, 14-18 parts of lead oxide, 8-10 parts of calcium silicate, 7-10 parts of barium sulfate, and 4-6 parts of sepiolite. The glaze includes: 26-32 parts of potassium feldspar, 16-20 parts of limestone, 5-8 parts of cadmium oxide, 6-12 parts of quartz, 1-2 parts of chromium oxide, 5-9 parts of sodium oxide, 2-4 parts of iron oxide, and 3-5 parts of sodium silicate. The preparation process includes the following steps: body preparation, throwing, bisque firing, glaze preparation, glazing, and firing. The ceramic products prepared by this invention have the advantages of good light transmittance, thick and opaque glaze, and pure color.

[0004] Another example is Chinese invention patent CN113943176A, which discloses a high-transparency transparent ceramic and its preparation method. The high-transparency transparent ceramic comprises a transparent ceramic substrate, a first niobium oxide film layer, a first silicon oxide film layer, a second niobium oxide film layer, and a second silicon oxide film layer. These antireflective films are sequentially stacked on the transparent ceramic substrate. These antireflective films match the basic light transmittance of the transparent ceramic substrate and have good adhesion to its surface. This results in a high-transparency transparent ceramic with a minimum reflectance of less than 5% and a maximum transmittance of over 93% in the visible light 380-780 nm wavelength band, making it suitable for applications in multiple fields. Furthermore, this application uses a magnetron sputtering method, which is simple, efficient, and can be completed without affecting the structural strength and molding process of the transparent ceramic, making it suitable for mass production.

[0005] However, the process is prone to problems with low tolerance for errors. If defects occur on the surface of the blank during firing, it cannot be used. Moreover, after production, the heat insulation performance and tactile feel are poor, making it inconvenient to use. Summary of the Invention

[0006] To overcome the technical defects of the existing technology, the present invention provides high light transmittance ceramics and their preparation process. During the preparation process, the ceramics have a high tolerance for error and excellent heat insulation performance after preparation. They have the advantages of high light transmittance, high strength, high heat insulation and smooth touch.

[0007] The technical solution adopted in this invention is: high-transparency ceramic and its preparation process, including an inner body and an outer body, wherein the inner body and the outer body are bonded together by an inner adhesive layer. The inner body, the outer body, and the inner adhesive layer are combined to form a blank. The outer surface of the blank is coated with glaze and then sintered to form a glaze. The inner body and the outer body are made of the same material. The inner adhesive layer is composed of transparent glass microspheres, nano-silica particles, and nano-cesium tungsten oxide powder. The glaze is composed of quartz, feldspar, kaolin, borax, calcium oxide, and talc. After the high-transparency ceramic is formed, the nano-cesium tungsten oxide powder is used to improve the light transmittance during use. The material provides excellent heat insulation, and through the secondary firing of transparent glass microspheres and nano-silicone particles, the transparent glass microspheres and nano-silicone particles are molten, facilitating the bonding between the inner and outer blanks. Furthermore, during production, the inner and outer blanks are manufactured separately. Minor defects on the outer side of the inner blank and the inner side of the outer blank can be repaired using the inner bonding layer, resulting in a high tolerance for defects and reduced scrap rates. This facilitates the production of everyday items such as bowls, plates, or cups, and the use of talc improves the feel of the finished product.

[0008] Preferably, the inner blank and the outer blank are composed of clay, silicon dioxide, titanium dioxide, bone meal, alumina, zirconium oxide, magnesium oxide and boron oxide, and the materials in the inner blank and the outer blank are in the following weight ratios: 18-25 parts clay, 25-32 parts silicon dioxide, 8-12 parts titanium dioxide, 8-12 parts bone meal, 12-15 parts alumina, 8-10 parts zirconium oxide, 6-11 parts magnesium oxide and 4-8 parts boron oxide.

[0009] Preferably, the materials in the inner adhesive layer are proportioned by weight as follows: 20-25 parts transparent glass microspheres, 18-25 parts nano-silicone particles, and 15-20 parts nano-cesium tungsten oxide powder.

[0010] Preferably, the glaze is composed of 15-20 parts quartz, 15-22 parts feldspar, 20-25 parts kaolin, 5-12 parts borax, 10-20 parts calcium oxide, and 15-18 parts talc by weight.

[0011] The preparation process of high-transmittance ceramics includes the following steps:

[0012] Step 1: Process the raw materials required for the inner blank, the outer blank, the inner adhesive layer, and the glaze, and prepare them into a slurry;

[0013] Step 2: The prepared slurry is molded into the inner blank and the outer blank according to the model, and then fired after drying.

[0014] Step 3: The fired inner blank and the outer blank are laminated together, and during the lamination process, the inner adhesive layer is coated between the inner blank and the outer blank, and then static pressing is performed;

[0015] Step 4: After static pressing, the blank is fired again to form the body blank;

[0016] Step 5: Apply the slurry formed by the glaze material to the surface of the blank, with a glaze layer thickness of 1.5-2mm, and allow it to air dry.

[0017] Step six: After air-drying, fire again to form high-transparency ceramics.

[0018] Preferably, in step one, when processing the raw materials, the materials of the inner blank, the outer blank, and the glaze are ball-milled with water. After ball milling, the raw materials of the inner blank and the outer blank are sieved through a 250-mesh sieve, and the raw materials of the glaze are sieved through a 100-mesh sieve. After sieving, distilled water is added to make a slurry. The glaze is formed by mixing glaze material with water to form the glaze solution, and the glaze solution has a Baume degree of 45-50.

[0019] Preferably, during the firing process in step two, the temperature is raised in a curved manner, with the highest temperature reaching 1250-1400℃ and the heating rate controlled at 2℃ / min. After reaching the highest temperature, the temperature is held for 10-12 hours, and then the material is removed and allowed to cool naturally to room temperature. In step three, after applying the inner adhesive layer, the static pressure is controlled at 100-120MPa, and the static pressure time is 1-2 hours. In step four, during the re-firing process, the temperature rises in a curved manner, with the highest temperature controlled at 1100-1200℃ and the heating rate at 2.5℃ / min. After reaching the highest temperature, the temperature is held for 1-3 hours.

[0020] Preferably, in step six, during the second firing, the temperature is raised in a curved manner, with the highest temperature reaching 1050-1200℃ and the heating rate controlled at 1.5℃ / min. After reaching the highest temperature, the temperature is held for 3-5 hours, and then the product is removed and allowed to cool naturally to complete the preparation.

[0021] The beneficial effects of this invention are: by using an inner blank and an outer blank, which are fired separately and then bonded together by an inner adhesive layer, a high tolerance for defects is achieved, avoiding the problem of scrapping due to minor flaws. Furthermore, the nano-silicone particles and nano-cesium tungsten oxide powder in the inner adhesive layer improve the heat insulation performance after preparation, resulting in high light transmittance, high strength, high heat insulation, and a smooth touch. This facilitates production and application, making it convenient to produce everyday bowls, plates, or cups. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the material proportions in this invention.

[0023] Figure 2 This is a performance test diagram of the present invention. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Example 1

[0026] like Figure 1-2 As shown, this embodiment provides a high-transparency ceramic and its preparation process, including an inner body and an outer body, which are bonded together by an inner adhesive layer. The inner body, outer body, and inner adhesive layer are combined to form a blank. The outer surface of the blank is coated with glaze and then sintered to form a glaze. The inner and outer bodies are made of the same materials. The inner adhesive layer is composed of transparent glass microspheres, nano-silica particles, and nano-cesium tungsten oxide powder. The glaze is composed of quartz, feldspar, kaolin, borax, calcium oxide, and talc. After the high-transparency ceramic is formed... By using nano-cesium tungsten oxide powder, the heat insulation performance during use is improved. Furthermore, by using transparent glass microspheres and nano-silicone particles during the secondary firing process, the transparent glass microspheres and nano-silicone particles are made into a molten state, which facilitates the bonding between the inner and outer blanks. During production, the inner and outer blanks are produced separately. If there are minor defects on the outer side of the inner blank and the inner side of the outer blank, they can be repaired through the inner bonding layer. This method has a high fault tolerance rate and reduces the scrap rate. In addition, talc is used to improve the feel of the finished product.

[0027] The inner and outer blanks are composed of clay, silica, titanium dioxide, bone meal, alumina, zirconium oxide, magnesium oxide, and boron oxide. The materials in the inner and outer blanks are in the following weight ratios: 18 parts clay, 25 parts silica, 8 parts titanium dioxide, 8 parts bone meal, 12 parts alumina, 8 parts zirconium oxide, 6 parts magnesium oxide, and 4 parts boron oxide. The materials in the inner adhesive layer are in the following weight ratios: 20 parts transparent glass microspheres, 18 parts nano silica gel particles, and 15 parts nano cesium tungsten oxide powder. The glaze is composed of the following weight ratios: 15 parts quartz, 15 parts feldspar, 20 parts kaolin, 5 parts borax, 10 parts calcium oxide, and 15 parts talc.

[0028] The preparation process includes the following steps:

[0029] Step 1: Process the raw materials required for the inner body, outer body, inner adhesive layer and glaze, and prepare them into a slurry;

[0030] Step 2: The prepared slurry is molded into inner and outer blanks according to the mold, and then fired after drying.

[0031] Step 3: Combine the fired inner and outer blanks, and during the combination, apply an inner adhesive layer between the inner and outer blanks, and then perform static pressing.

[0032] Step 4: After static pressing, the blank is fired again to form the body blank;

[0033] Step 5: Apply a slurry of glaze material to the surface of the blank, with a glaze layer thickness of 1.5 mm, and allow it to air dry.

[0034] Step six: After air-drying, fire again to form high-transparency ceramics.

[0035] In step one, during raw material processing, the materials for the inner body, outer body, and glaze are ball-milled with water. After ball milling, the raw materials for the inner and outer bodies are sieved through a 250-mesh sieve, while the raw materials for the glaze are sieved through a 100-mesh sieve. After sieving, distilled water is added to prepare a slurry. The glaze is made by mixing the glaze with water to form a glaze solution with a Baume degree of 45. In step two, during firing, the temperature is raised in a curved upward trend, reaching a maximum temperature of 1250℃ at a rate controlled at 2℃ / min. After reaching the maximum temperature, the temperature is held for 10 hours, and then the product is removed. After naturally cooling to room temperature, in step three, after applying the inner adhesive layer, the static pressure is controlled at 100 MPa for 1 hour. In step four, during the second firing, the temperature rises in a curve, with the highest temperature controlled at 1100 degrees Celsius and the heating rate at 2.5 degrees Celsius / min. After reaching the highest temperature, it is held for 1 hour. In step six, during the second firing, the temperature rises in a curve, with the highest temperature reaching 1050 degrees Celsius and the heating rate controlled at 1.5 degrees Celsius / min. After reaching the highest temperature, it is held for 3-5 hours. Then, it is removed and allowed to cool naturally to complete the preparation.

[0036] After the preparation was completed, performance testing was conducted, and the results are as follows: Figure 2 As shown.

[0037] Example 2

[0038] like Figure 1-2 As shown, this embodiment provides a high-transmittance ceramic and its preparation process. Compared with Embodiment 1, the difference is that the materials in the inner and outer blanks are in the following weight ratios: 20 parts clay, 26 parts silica, 9 parts titanium dioxide, 9 parts bone meal, 13 parts alumina, 9 parts zirconium oxide, 7 parts magnesium oxide, and 5 parts boron oxide. The materials in the inner adhesive layer are in the following weight ratios: 21 parts transparent glass microspheres, 19 parts nano silica gel particles, and 16 parts nano cesium tungsten oxide powder. The glaze composition materials are in the following weight ratios: 16 parts quartz, 16 parts feldspar, 21 parts kaolin, 6 parts borax, 12 parts calcium oxide, and 16 parts talc.

[0039] The preparation steps are the same as in Example 1, except that: the glaze is made by mixing glaze material with water to form a glaze solution with a Baume degree of 46. In step two, during firing, the temperature is raised in a curved upward trend, reaching a maximum of 1300℃ at a rate controlled at 2℃ / min. After reaching the maximum temperature, it is held for 10.5 hours, then removed and allowed to cool naturally to room temperature. In step three, after applying the inner adhesive layer, the static pressure is controlled at 110MPa. The firing time is 1.2 hours. In step four, during the second firing, the temperature rises in a curved manner, with the highest temperature controlled at 1150 degrees Celsius and the heating rate at 2.5 degrees Celsius / min. After reaching the highest temperature, it is held for 1.2 hours. In step six, during the second firing, the temperature rises in a curved manner, with the highest temperature reaching 1100 degrees Celsius and the heating rate controlled at 1.5 degrees Celsius / min. After reaching the highest temperature, it is held for 3.5 hours. Then, it is removed and allowed to cool naturally to complete the preparation.

[0040] After the preparation was completed, performance testing was conducted, and the results are as follows: Figure 2 As shown.

[0041] Example 3

[0042] like Figure 1-2 As shown, this embodiment provides a high-transmittance ceramic and its preparation process. Compared with Embodiment 1, the difference is that the materials in the inner and outer blanks are in the following weight ratios: 20 parts clay, 28 parts silica, 10 parts titanium dioxide, 10 parts bone meal, 13 parts alumina, 9 parts zirconium oxide, 8 parts magnesium oxide, and 6 parts boron oxide. The materials in the inner adhesive layer are in the following weight ratios: 23 parts transparent glass microspheres, 20 parts nano silica gel particles, and 18 parts nano cesium tungsten oxide powder. The glaze composition materials are in the following weight ratios: 18 parts quartz, 19 parts feldspar, 23 parts kaolin, 9 parts borax, 15 parts calcium oxide, and 17 parts talc.

[0043] The preparation steps are the same as in Example 1, except that: the glaze is made by mixing glaze material with water to form a glaze solution with a Baumé degree of 48. During firing in step two, the temperature is raised in a curved upward trend, reaching a maximum of 1325°C at a rate of 2°C / min. After reaching the maximum temperature, it is held at that temperature for 11 hours, then removed and allowed to cool naturally to room temperature. In step three, after applying the inner adhesive layer, the static pressure is controlled at 110 MPa. The firing time is 1.5 hours. During the second firing in step four, the temperature rises in a curved manner, with the highest temperature controlled at 1150 degrees Celsius and the heating rate at 2.5 degrees Celsius / min. After reaching the highest temperature, it is held for 2 hours. In step six, during the second firing, the temperature rises in a curved manner, with the highest temperature reaching 1125 degrees Celsius and the heating rate controlled at 1.5 degrees Celsius / min. After reaching the highest temperature, it is held for 4 hours. Then, it is removed and allowed to cool naturally to complete the preparation.

[0044] After the preparation was completed, performance testing was conducted, and the results are as follows: Figure 2 As shown.

[0045] Example 4

[0046] like Figure 1-2 As shown, this embodiment provides a high-transmittance ceramic and its preparation process. Compared with Embodiment 1, the difference is that the materials in the inner and outer blanks are in the following weight ratios: 24 parts clay, 30 parts silica, 11 parts titanium dioxide, 11 parts bone meal, 14 parts alumina, 9.5 parts zirconium oxide, 10 parts magnesium oxide, and 7.5 parts boron oxide. The materials in the inner adhesive layer are in the following weight ratios: 24 parts transparent glass microspheres, 24 parts nano silica gel particles, and 19 parts nano cesium tungsten oxide powder. The glaze composition materials are in the following weight ratios: 20 parts quartz, 21 parts feldspar, 24 parts kaolin, 11 parts borax, 19 parts calcium oxide, and 17 parts talc.

[0047] The preparation steps are the same as in Example 1, except that: the glaze is made by mixing glaze material with water to form a glaze solution with a Baume degree of 47. In step two, during firing, the temperature is raised in a curved upward trend, reaching a maximum of 1350℃ at a rate controlled at 2℃ / min. After reaching the maximum temperature, it is held at that temperature for 11.5 hours, then removed and allowed to cool naturally to room temperature. In step three, after applying the inner adhesive layer, the static pressure is controlled at 115MPa. The firing time is 1.8 hours. In step four, during the second firing, the temperature rises in a curved manner, with the highest temperature controlled at 1180 degrees Celsius and the heating rate at 2.5 degrees Celsius / min. After reaching the highest temperature, it is held for 2.5 hours. In step six, during the second firing, the temperature rises in a curved manner, with the highest temperature reaching 1160 degrees Celsius and the heating rate controlled at 1.5 degrees Celsius / min. After reaching the highest temperature, it is held for 4.5 hours. Then, it is removed and allowed to cool naturally to complete the preparation.

[0048] After the preparation was completed, performance testing was conducted, and the results are as follows: Figure 2 As shown.

[0049] Example 5

[0050] like Figure 1-2 As shown, this embodiment provides a high-transmittance ceramic and its preparation process. Compared with Embodiment 1, the difference is that the materials in the inner and outer blanks are in the following weight ratios: 25 parts clay, 32 parts silica, 12 parts titanium dioxide, 12 parts bone meal, 15 parts alumina, 10 parts zirconium oxide, 11 parts magnesium oxide, and 8 parts boron oxide. The materials in the inner adhesive layer are in the following weight ratios: 25 parts transparent glass microspheres, 25 parts nano silica gel particles, and 20 parts nano cesium tungsten oxide powder. The glaze composition materials are in the following weight ratios: 20 parts quartz, 22 parts feldspar, 25 parts kaolin, 12 parts borax, 20 parts calcium oxide, and 18 parts talc.

[0051] The preparation steps are the same as in Example 1, except that: the glaze is made by mixing glaze material with water to form a glaze solution with a Baumé degree of 49. In step two, during firing, the temperature is raised in a curved manner, reaching a maximum temperature of 1400°C at a rate of 2°C / min. After reaching the maximum temperature, it is held for 12 hours, then removed and allowed to cool naturally to room temperature. In step three, after coating the inner adhesive layer, the static pressure is controlled at 120 MPa for 2 hours. In step four, during the second firing, the temperature is raised in a curved manner, reaching a maximum temperature of 1200°C at a rate of 2.5°C / min. After reaching the maximum temperature, it is held for 3 hours. In step six, during the second firing, the temperature is raised in a curved manner, reaching a maximum temperature of 1200°C at a rate of 1.5°C / min. After reaching the maximum temperature, it is held for 5 hours, then removed and allowed to cool naturally to complete the preparation.

[0052] After the preparation was completed, performance testing was conducted, and the results are as follows: Figure 2 As shown.

[0053] Comparative Example 1

[0054] like Figure 1-2 As shown, this embodiment provides a high-transmittance ceramic and its preparation process. Compared with Embodiment 1, the difference is that the inner adhesive layer is removed, and a commercially available adhesive is used to bond the inner body and the outer body together. The materials in the inner body and the outer body are in the following weight ratios: 18 parts clay, 25 parts silica, 8 parts titanium dioxide, 8 parts bone meal, 12 parts alumina, 8 parts zirconium oxide, 6 parts magnesium oxide, and 4 parts boron oxide. The glaze 4 is composed of the following weight ratios: 15 parts quartz, 15 parts feldspar, 20 parts kaolin, 5 parts borax, 10 parts calcium oxide, and 15 parts talc.

[0055] The preparation steps are the same as in Example 1, except that: the glaze is made by mixing glaze material with water to form a glaze solution with a Baumé degree of 50. During firing in step two, the temperature is raised in a curved manner, reaching a maximum of 1250°C at a rate controlled at 2°C / min. After reaching the maximum temperature, it is held at that temperature for 10 hours, then removed and allowed to cool naturally to room temperature. In step three, after applying a commercially available adhesive, the static pressure is controlled at 100 MPa. The static pressing time is 1 hour, and during the second firing in step four, the temperature rises in a curved manner, with the highest temperature controlled at 1100 degrees Celsius and the heating rate at 2.5 degrees Celsius / min. After reaching the highest temperature, it is held at that temperature for 1 hour. In step six, during the second firing, the temperature rises in a curved manner, with the highest temperature reaching 1050 degrees Celsius and the heating rate controlled at 1.5 degrees Celsius / min. After reaching the highest temperature, it is held at that temperature for 3 hours. Then, it is removed and allowed to cool naturally to complete the preparation.

[0056] After the preparation was completed, performance testing was conducted, and the results are as follows: Figure 2 As shown.

[0057] Compared with the test data of Examples 1 to 5, Examples 1 to 5 have lower thermal conductivity and can increase the heat insulation effect. The light transmittance, Vickers hardness and flexural strength of Examples 1 to 5 are better than those of Comparative Example 1.

[0058] In Examples 1 to 5 and Comparative Example 1, the transmittance was tested as follows: each test sample was a 20×20mm block, and the transmittance was measured using a transmittance meter. The instrument reading was the relative transmittance of the sample. The larger the value, the better the transmittance.

[0059] Vickers hardness is tested using the Austrian QATM Vickers hardness tester; the higher the value, the better the hardness.

[0060] The flexural strength was tested according to the GB / T 3810.4-2016 standard. The higher the value, the better the flexural strength.

[0061] The feel is tested by touching the surface.

[0062] Thermal conductivity was tested using a hot-wire thermal conductivity meter; the higher the value, the better the thermal conductivity.

[0063] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. High-transparency ceramic, characterized in that: The inner blank and the outer blank are combined with the inner adhesive layer to form a tire blank, and the outer surface of the tire blank is sintered into a glaze body after being coated with glaze water.

2. The high light transmission ceramic of claim 1, wherein: The composition of the inner blank and the outer blank is clay, silicon dioxide, titanium white powder, bone powder, aluminum oxide, zirconium oxide, magnesium oxide, and boron oxide.

3. The high light transmission ceramic of claim 2, wherein: The materials in the inner blank and the outer blank are mixed in a weight ratio of 18-25 parts of clay, 25-32 parts of silicon dioxide, 8-12 parts of titanium white powder, 8-12 parts of bone powder, 12-15 parts of aluminum oxide, 8-10 parts of zirconium oxide, 6-11 parts of magnesium oxide, and 4-8 parts of boron oxide.

4. The high light transmittance ceramic of claim 1, wherein: The materials in the inner adhesive layer are mixed in a weight ratio of 20-25 parts of transparent glass microbeads, 18-25 parts of nano-silica gel particles, and 15-20 parts of nano-cesium tungsten oxide powder.

5. The high light transmittance ceramic of claim 1, wherein: The composition of the glaze body is 15-20 parts of quartz, 15-22 parts of feldspar, 20-25 parts of kaolin, 5-12 parts of borax, 10-20 parts of calcium oxide, and 15-18 parts of talc.

6. The process for the preparation of high light transmission ceramic according to claim 1, characterized in that, The steps are as follows: Step one: process the raw materials required for the inner blank, the outer blank, the inner adhesive layer, and the glaze body, and make slurry; Step two: prepare the slurry according to the model, and then make the blank body of the inner blank and the outer blank, and then dry and sinter; Step three: composite the inner blank and the outer blank, and coat the inner adhesive layer between the inner blank and the outer blank during the composite process, and then perform static pressure; Step four: after static pressure, perform sintering again to form a tire blank; Step five: coat the surface of the tire blank with the slurry formed by the glaze material, and the glaze layer thickness is 1.5-2mm, and then perform shadow drying; Step six: after shadow drying, sinter again to form high-transparency ceramic.

7. Process for the preparation of highly light-transmitting ceramics according to claim 6, characterized in that: In step one, when processing the raw materials, the materials of the inner blank, the outer blank, and the glaze body are added with water using a ball mill, and after ball milling, the raw materials of the inner blank and the outer blank are sieved through a 250 mesh sieve, and the raw materials of the glaze body are sieved through a 100 mesh sieve, and after sieving, distilled water is added to make slurry, and the glaze is mixed with water to form the glaze water, and the glaze water has a Baumé degree of 45-50.

8. The process for the preparation of high light transmittance ceramic according to claim 6, characterized in that: In step two, the temperature is raised in a curve, and the highest temperature is raised to 1250-1400℃, the heating rate is controlled at 2℃ / min, after rising to the highest temperature, it is kept for 10-12 hours, then it is taken out and naturally cooled to room temperature, in step three, after coating the inner adhesive layer, the pressure is controlled at 100-120MPa during static pressure, the static pressure time is 1-2 hours, and in step four, during the second firing, the temperature is raised in a curve, the highest temperature is controlled at 1100-1200℃, the heating rate is 2.5℃ / min, after rising to the highest temperature, it is kept for 1-3 hours.

9. The process for the preparation of high light transmittance ceramic according to claim 6, characterized in that: In step six, during the second firing, the temperature is raised in a curve, and the highest temperature is raised to 1050-1200℃, the heating rate is controlled at 1.5℃ / min, after rising to the highest temperature, it is kept for 3-5 hours, then it is taken out and naturally cooled, and the preparation is completed.

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