Production process of noctilucent ceramic

Abstract

The invention relates to the technical field of noctilucent ceramics, and discloses a noctilucent ceramic production process which comprises the following steps: S1, polishing and cleaning the surface of a ceramic product, placing the ceramic product on a workbench, and filling white base oil on the surface of the ceramic product; s2, putting the ceramic product into a baking oven, and baking the ceramic product at 175-185 DEG C for 1-1.5 h; s3, the white oil of the ceramic product is filled with noctilucent powder, and the ceramic product filled with the noctilucent powder is subjected to standing for 24 h in the environment of 20-30 DEG C; and S4, in the noctilucent state, checking whether the luminous effect of the ceramic product meets the technical requirements or not, and detecting whether the size and the appearance meet the design requirements or not. The preparation method comprises the following steps: filling the white base oil on the surface of a ceramic product, baking, filling the noctilucent powder in a normal-temperature environment, and standing for a period of time; the preparation method is simple in process and convenient to operate, a high-temperature calcination mode is not needed, and the prepared noctilucent ceramic has the characteristics of high luminous intensity and better luminous effect; and the luminous ceramic is smooth in surface and good in glossiness.

Description

Technical Field

[0001] The invention relates to the technical field of luminous ceramics, in particular to a production process of luminous ceramics. Background Art

[0002] Because ceramics have the characteristics of high hardness, light weight, novel colors, etc., their excellent performance characteristics are widely used in home furnishing, artificial intelligence, medical field, electronic communications and other fields; because ceramics do not have luminous function, their application is affected; and luminous ceramics can create a good environment atmosphere through beautiful luminous effects, therefore, luminous ceramics are developing rapidly.

[0003] A Chinese patent discloses a production process for luminous ceramic products (Announcement No. CN102898185B). The patented technology uses the steps of making, printing, firing, and shaping luminous glaze to prepare luminous ceramic products; it can produce high-brightness afterglow, but it uses calcination to glaze, the process is relatively complicated, and the surface quality of the ceramic products is poor. Summary of the invention

[0004] The purpose of the present invention is to provide a production process of luminous ceramics to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A production process of luminous ceramics comprises the following steps:

[0007] S1. After grinding and cleaning the surface of the ceramic product, place it on the workbench and apply white primer on the surface of the ceramic product;

[0008] S2. Place the ceramic product in a baking oven and bake at 175-185°C for 1-1.5 hours;

[0009] S3. Fill the luminous powder on the white oil of the ceramic product, and place the ceramic product filled with the luminous powder in an environment of 20-30°C for 24 hours;

[0010] S4. In the luminous state, check whether the luminous effect of the ceramic product meets the technical requirements, and check whether the size and appearance meet the design requirements.

[0011] As a further solution of the present invention: in the step S1, the ambient temperature for filling the white primer on the surface of the ceramic product is 5-35°C, and the white primer is white mineral oil. The white primer can improve the adhesion and aesthetics of the surface of the ceramic product, so as to better fill in the luminous powder.

[0012] As a further solution of the present invention: in the step S3, the luminous powder is composed of 92 to 96 parts of fluorescent agent, 16 to 20 parts of manganese sulfate solution and 3 to 4 parts of co-solvent in terms of mass.

[0013] As a further solution of the present invention: in the step S3, the method for preparing the luminous powder comprises the following steps:

[0014] S31, after mixing 92-96 parts of fluorescent agent, 16-20 parts of manganese sulfate solution and 3-4 parts of co-solvent by mass, add appropriate amount of distilled water and stir into a paste;

[0015] S32, then put it into a crucible, send it into a muffle furnace at 1250-1350°C, and calcine it in a reducing atmosphere for 1-1.2h;

[0016] S33, after taking out and cooling, crushing, grinding, and passing through a 200-mesh sieve to obtain luminous powder.

[0017] As a further solution of the present invention: in the step S32, the gases used in the reducing atmosphere are nitrogen and ammonia, wherein the mass ratio of nitrogen to ammonia is (2-3):1.

[0018] As a further embodiment of the present invention, the fluorescent agent is composed of zinc sulfide, aluminum oxide, strontium carbonate, europium oxide and dysprosium oxide in a mass ratio of (70-80): (10-20): (0.7-0.8): (0.9-1.1): (1-1.2).

[0019] As a further solution of the present invention: the concentration of the manganese sulfate solution is 1.0-1.5 mol / L, and the manganese sulfate solution can excite the fluorescent agent to produce a luminescent effect.

[0020] As a further solution of the present invention: the co-solvent is composed of sodium chloride, barium chloride and boric acid solution, and the mass ratio thereof is 1:1:(5-8). The co-solvent can reduce the calcination temperature of the luminous powder; the mass concentration of the boric acid solution is 5%-6%.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention fills white primer on the surface of a ceramic product, and after baking, fills in luminous powder at room temperature and leaves it to stand for a period of time. The process is simple and easy to operate, and no high-temperature calcination is required. The prepared luminous ceramic has the characteristics of high luminous intensity and good luminous effect. The surface of the luminous ceramic is smooth and has good gloss. DETAILED DESCRIPTION

[0023] Example 1

[0024] In an embodiment of the present invention, a production process of luminous ceramics includes the following steps:

[0025] S1. After grinding and cleaning the surface of the ceramic product, place it on the workbench and fill the surface of the ceramic product with white mineral oil at 5°C;

[0026] S2. Place the ceramic product in a baking oven and bake at 175°C for 1.5 hours;

[0027] S3, after mixing 92 parts of fluorescent agent, 16 parts of manganese sulfate solution with a concentration of 1.5 mol / L and 3 parts of auxiliary solvent by mass, add appropriate amount of distilled water and stir into a paste; then put it into a crucible, send it into a 1250°C muffle furnace, and pass a mixed gas composed of nitrogen and ammonia in a mass ratio of 2:1, and calcine in a reducing atmosphere for 1.2 hours; after taking it out and cooling it, crush, grind, and pass it through a 200-mesh sieve to obtain a luminous powder for use; wherein the fluorescent agent is prepared from zinc sulfide, aluminum oxide, strontium carbonate, europium oxide and dysprosium oxide in a mass ratio of 70:10:0.7:0.9:1; the auxiliary solvent is prepared from sodium chloride, barium chloride and a boric acid solution with a mass concentration of 5% to 6% in a mass ratio of 1:1:5;

[0028] Fill the white oil of the ceramic product with luminous powder, and place the ceramic product filled with luminous powder in an environment of 20℃ for 24 hours;

[0029] S4. In the luminous state, check whether the luminous effect of the ceramic product meets the technical requirements, and check whether the size and appearance meet the design requirements.

[0030] Example 2

[0031] In an embodiment of the present invention, a production process of luminous ceramics includes the following steps:

[0032] S1. After grinding and cleaning the surface of the ceramic product, place it on the workbench and fill the surface of the ceramic product with white mineral oil at 15°C;

[0033] S2. Place the ceramic product in a baking oven and bake at 180°C for 1.2 hours;

[0034] S3, after mixing 94 parts of fluorescent agent, 18 parts of manganese sulfate solution with a concentration of 1.2 mol / L and 3.5 parts of auxiliary solvent by mass, add appropriate amount of distilled water and stir into a paste; then put it into a crucible, put it into a 1300℃ muffle furnace, and pass a mixed gas composed of nitrogen and ammonia in a mass ratio of 2.5:1, and calcine it in a reducing atmosphere for 1.1 hours; after taking it out and cooling it, crush, grind, and pass it through a 200-mesh sieve to obtain luminous powder for use; wherein, the fluorescent agent is prepared by zinc sulfide, aluminum oxide, strontium carbonate, europium oxide and dysprosium oxide in a mass ratio of 75:15:0.75:1.0:1.1; the auxiliary solvent is prepared by sodium chloride, barium chloride and a boric acid solution with a mass concentration of 5.5% in a mass ratio of 1:1:6;

[0035] Fill the white oil of the ceramic product with luminous powder, and place the ceramic product filled with luminous powder in an environment of 25℃ for 24 hours;

[0036] S4. In the luminous state, check whether the luminous effect of the ceramic product meets the technical requirements, and check whether the size and appearance meet the design requirements.

[0037] Example 3

[0038] In an embodiment of the present invention, a production process of luminous ceramics includes the following steps:

[0039] S1. After grinding and cleaning the surface of the ceramic product, place it on the workbench and fill the surface of the ceramic product with white mineral oil at 35°C;

[0040] S2. Place the ceramic product in a baking oven and bake at 185°C for 1 hour;

[0041] S3, after mixing 96 parts of fluorescent agent, 20 parts of 1.5 mol / L manganese sulfate solution and 4 parts of auxiliary solvent by mass, add appropriate amount of distilled water and stir into a paste; put it into a crucible, put it into a 1350°C muffle furnace, and pass a mixed gas composed of nitrogen and ammonia in a mass ratio of 3:1, and calcine in a reducing atmosphere for 1.2 hours; take it out and cool it, crush, grind, and pass it through a 200-mesh sieve to obtain luminous powder for use; wherein, the fluorescent agent is prepared by zinc sulfide, aluminum oxide, strontium carbonate, europium oxide and dysprosium oxide in a mass ratio of 80:20:0.8:1.1:1.2; the auxiliary solvent is prepared by sodium chloride, barium chloride and a boric acid solution with a mass concentration of 6% in a mass ratio of 8;

[0042] Fill the white oil of the ceramic product with luminous powder, and place the ceramic product filled with luminous powder in an environment of 30℃ for 24 hours;

[0043] S4. In the luminous state, check whether the luminous effect of the ceramic product meets the technical requirements, and check whether the size and appearance meet the design requirements.

[0044] In order to better illustrate the technical effects of the present invention, the following embodiments are described:

[0045] The luminous ceramic products prepared by Examples 1, 2 and 3 of the present invention are selected as Example Group 1, Example Group 2 and Example Group 3, and the luminous ceramic products prepared by a production process of luminous ceramic products disclosed in the patent website (publication date: 2014-12-10, publication number: CN102898185B) are selected as the comparative example group;

[0046] 1. Use visible light to irradiate the luminous ceramic products in Example 1, Example 2, Example 3 and Comparative Example for 4 hours, then move the luminous ceramic products to a dark environment and detect their initial luminous intensity (unit: mcd / m 2 ), and the luminous effect, and record them in the following table 1;

[0047] 2. Detect the surface quality (including roughness and glossiness) of the luminous ceramic products in Example 1, Example 2, Example 3 and Comparative Example respectively and record them in the following table 1;

[0048] Table 1 Luminous properties and surface quality properties of luminous ceramic products

[0049]

[0050] It can be seen from Table 1 above: the initial luminous intensity of the luminous ceramic products in Example 1, Example 2 and Example 3 are relatively close, and their initial luminous intensity is significantly greater than that of the luminous ceramic products in the comparison group; the luminous effect of the luminous ceramic products in Example 1, Example 2 and Example 3 is better; and the surface of the luminous ceramic products in Example 1, Example 2 and Example 3 is smooth and has good gloss.

[0051] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A production process of luminous ceramics, characterized in that: The following steps are involved: S1. After grinding and cleaning the surface of the ceramic product, place it on the workbench and apply white primer on the surface of the ceramic product; S2. Place the ceramic product in a baking oven and bake at 175-185°C for 1-1.5 hours; S3. Fill the white oil of the ceramic product with luminous powder, and place the ceramic product filled with luminous powder in an environment of 20-30°C for 24 hours; S4. In the luminous state, check whether the luminous effect of the ceramic product meets the technical requirements, and check whether the size and appearance meet the design requirements.

2. The production process of luminous ceramics according to claim 1, characterized in that: In the step S1, the ambient temperature for filling the surface of the ceramic product with white primer is 5-35°C, and the white primer is white mineral oil.

3. The production process of luminous ceramics according to claim 1, characterized in that: In the step S3, the luminous powder has the following composition in parts by mass: 92 to 96 parts of fluorescent agent, 16 to 20 parts of manganese sulfate solution and 3 to 4 parts of auxiliary solvent.

4. The production process of luminous ceramics according to claim 3, characterized in that: In the step S3, the method for preparing the luminous powder comprises the following steps: S31, after mixing 92-96 parts of fluorescent agent, 16-20 parts of manganese sulfate solution and 3-4 parts of co-solvent by mass, add appropriate amount of distilled water and stir into a paste; S32, then put it into a crucible, send it into a muffle furnace at 1250-1350°C, and calcine it in a reducing atmosphere for 1-1.2h; S33, after taking out and cooling, crushing, grinding, and passing through a 200-mesh sieve to obtain luminous powder.

5. The production process of luminous ceramics according to claim 1, characterized in that: In the step S32, the gases used in the reducing atmosphere are nitrogen and ammonia, wherein the mass ratio of nitrogen to ammonia is (2-3):

1.

6. The production process of luminous ceramics according to claim 3, characterized in that: The fluorescent agent is composed of zinc sulfide, aluminum oxide, strontium carbonate, europium oxide and dysprosium oxide, and the mass ratio thereof is (70-80): (10-20): (0.7-0.8): (0.9-1.1): (1-1.2).

7. The production process of luminous ceramics according to claim 3, characterized in that: The concentration of the manganese sulfate solution is 1.0-1.5 mol / L.

8. The production process of luminous ceramics according to claim 3, characterized in that: The auxiliary solvent is composed of sodium chloride, barium chloride and boric acid solution, and the mass ratio thereof is 1:1:(5-8); the mass concentration of the boric acid solution is 5%-6%.

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