A method for making a double-sided white porcelain with yin-yang fine carving

Abstract

The application discloses a manufacturing method of double-sided yin-yang fine carving Chinese white porcelain, which comprises the following steps: S1, adopting a laser four-dimensional fine carving system to finely carve a blank; S2, blank forming, cooling, glazing and ink application; and S3, firing the ceramic blank after the ink application to obtain the double-sided yin-yang fine carving Chinese white porcelain. The manufacturing method of the double-sided yin-yang fine carving Chinese white porcelain has the advantages that the ceramic handicraft prepared by the method has high whiteness, good gloss, excellent strength and good mechanical properties.

Description

Technical Field

[0001] This invention relates to the field of ceramic technology, specifically to a method for producing double-sided yin-yang finely carved Chinese white ceramic. Background Technology

[0002] White porcelain is a type of traditional Chinese porcelain, typically made from a porcelain body with low iron content, coated with a pure, transparent glaze, and then fired. Because the glaze contains little or no colorant, the raw body is glazed and then fired at a high temperature to create a pure white porcelain ware. White porcelain is beloved for its pure white color, which reflects the color of tea, and is used to make everyday items such as bowls, plates, cups, and saucers, as well as exquisite handicrafts. It is also used to make flooring, lampshades, and other decorative items, thus possessing high practical and collectible value. Currently, the surface gloss of ceramic products is generally not high, failing to meet the increasingly sophisticated aesthetic standards of consumers. Summary of the Invention

[0003] In view of this, the purpose of this invention is to provide a method for producing double-sided yin-yang finely carved Chinese white ceramic, the resulting ceramic handicrafts having high whiteness, good gloss, and excellent strength and good mechanical properties.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A method for producing double-sided yin-yang finely carved Chinese white ceramic includes the following steps:

[0006] S1: The blank is precisely sculpted using a laser four-dimensional precision carving system;

[0007] S2: Blank forming, cooling, glazing and ink application;

[0008] S3: Fire the ceramic blank after applying ink to obtain double-sided yin-yang finely carved Chinese white ceramic.

[0009] Preferably, in step S2, the temperature for forming the blank is 300-400℃, the forming pressure is 3-4 MPa, and the forming time is 8-10 seconds.

[0010] Preferably, in step S2, the glazing is performed by dipping, and the ink application is performed by dripping ink.

[0011] Preferably, in step S3, the firing temperature of the green body is increased at a rate of 10℃ / min to 600℃, held for 1-2 hours, then increased to 1400℃ at a rate of 2℃ / min, and finally increased to 1600℃ at a rate of 5℃ / min, and held for 4-6 hours.

[0012] Preferably, the glaze applied in step S2 comprises the following components in parts by weight: 15-18 parts alumina, 15-18 parts quartz, 16-18 parts magnesium oxide, 8-10 parts albite, 8-10 parts barium sulfate, 5-8 parts modified magnesium aluminum spinel, 15-18 parts barium nitrate, 15-18 parts sodium carboxymethyl cellulose, 15-25 parts kaolin, and 80-100 parts water.

[0013] Preferably, the glaze is prepared by mixing the glaze components and then ball milling them, followed by sieving to obtain the glaze.

[0014] Preferably, the method for preparing the modified magnesium aluminum spinel includes:

[0015] Modified magnesium aluminum spinel is obtained by mixing magnesium aluminum spinel, lithium fluoride, polyvinylpyrrolidone, 75% ammonia water (by volume), KH570 coupling agent, and anhydrous ethanol, stirring magnetically for 1-2 hours, and drying at 60°C.

[0016] Preferably, the weight ratio of the magnesium aluminum spinel, lithium fluoride, polyvinylpyrrolidone, ammonia, KH570 coupling agent and anhydrous ethanol is 20:1:20:40:20:50.

[0017] Preferably, the green body in step S1 comprises the following components in parts by weight: 25-40 parts kaolin, 25-30 parts quartz, 6-8 parts sodium oxide, 6-8 parts albite, 6-8 parts barium sulfate, and 5-8 parts calcium oxide.

[0018] This invention modifies magnesium aluminum spinel and controls the melting temperature of lithium fluoride. First, the temperature is rapidly increased, causing the lithium fluoride to enter an unstable semi-molten state and distribute evenly on the surface of the ceramic body. At this time, the organic matter used for modification on the ceramic body surface slowly decomposes, and the surface pores gradually migrate, preventing excessive porosity caused by the decomposition of organic matter and the separation of the glaze from the body layers. Then, the temperature is increased at a low rate, allowing the lithium fluoride to completely melt and melt into the interior of the body through capillary action, promoting ceramic densification and dispersing at grain boundaries to prevent the formation of amorphous phases during subsequent firing and shaping. Finally, the temperature is gradually increased in the later stages to achieve pinning between the crystals formed by the external glaze and the internal crystalline phases of the ceramic, improving the stability and whiteness purity of the ceramic body. Thus, through the shaping and fine carving of the white porcelain body, combined with glazing and ink-drip processes, a double-sided, yin-yang finely carved Chinese white ceramic is formed. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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. In addition, it should be specifically noted that the raw materials and equipment of the present invention are all commercially available and will not be listed one by one. Among them, the raw materials of the present invention are all commercially available and are well known to those skilled in the art.

[0020] Example 1:

[0021] A method for producing double-sided yin-yang finely carved Chinese white ceramic includes the following steps:

[0022] S1: The blank is precisely sculpted using a laser four-dimensional precision carving system. The blank consists of the following components by weight: 25 parts kaolin, 25 parts quartz, 6 parts sodium oxide, 6 parts albite, 6 parts barium sulfate, and 5 parts calcium oxide.

[0023] S2: Blank forming, cooling, glazing and ink application; the forming temperature is 300℃, the forming pressure is 3Mpa, the forming time is 8s, the glazing is dip glazing, and the ink application is drop-function ink.

[0024] The glaze for glazing comprises the following components in parts by weight: 15 parts alumina, 15 parts quartz, 16 parts magnesium oxide, 8 parts albite, 8 parts barium sulfate, 5 parts modified magnesium aluminum spinel, 15 parts barium nitrate, 15 parts sodium carboxymethyl cellulose, 15 parts kaolin, and 80 parts water.

[0025] The specific method for preparing the glaze is as follows: the above-mentioned glaze components are mixed and then ball-milled, and the glaze is obtained by sieving after ball milling.

[0026] In addition, the preparation methods of modified magnesium aluminum spinel include:

[0027] Magnesium aluminum spinel, lithium fluoride, polyvinylpyrrolidone, 75% ammonia water, KH570 coupling agent and anhydrous ethanol were mixed in a weight ratio of 20:1:20:40:20:50, magnetically stirred for 1 hour and dried at 60°C to obtain modified magnesium aluminum spinel.

[0028] S3: The ceramic blank after ink application is fired at a temperature of 600℃ at a heating rate of 10℃ / min, held for 1 hour, then heated to 1400℃ at a rate of 2℃ / min, and finally heated to 1600℃ at a rate of 5℃ / min, held for 4 hours to obtain double-sided yin-yang finely carved Chinese white ceramic.

[0029] Example 2:

[0030] A method for producing double-sided yin-yang finely carved Chinese white ceramic includes the following steps:

[0031] S1: The blank is precisely sculpted using a laser four-dimensional precision carving system. The blank consists of the following components by weight: 40 parts kaolin, 30 parts quartz, 8 parts sodium oxide, 8 parts albite, 8 parts barium sulfate, and 8 parts calcium oxide.

[0032] S2: Blank forming, cooling, glazing and ink application; the forming temperature is 400℃, the forming pressure is 4Mpa, the forming time is 10s, the glazing is dip glazing, and the ink application is drop-feed functional ink.

[0033] The glaze for glazing comprises the following components in parts by weight: 18 parts alumina, 18 parts quartz, 18 parts magnesium oxide, 10 parts albite, 10 parts barium sulfate, 8 parts modified magnesium aluminum spinel, 18 parts barium nitrate, 18 parts sodium hydroxymethyl cellulose, 25 parts kaolin, and 100 parts water.

[0034] The specific method for preparing the glaze is as follows: the above-mentioned glaze components are mixed and then ball-milled, and the glaze is obtained by sieving after ball milling.

[0035] In addition, the preparation methods of modified magnesium aluminum spinel include:

[0036] Magnesium aluminum spinel, lithium fluoride, polyvinylpyrrolidone, 75% ammonia water, KH570 coupling agent and anhydrous ethanol were mixed in a weight ratio of 20:1:20:40:20:50, magnetically stirred for 2 hours and dried at 60°C to obtain modified magnesium aluminum spinel.

[0037] S3: The ceramic blank after ink application is fired at a temperature of 600℃ at a heating rate of 10℃ / min, held for 2 hours, then heated to 1400℃ at a rate of 2℃ / min, and finally heated to 1600℃ at a rate of 5℃ / min, held for 6 hours to obtain double-sided yin-yang finely carved Chinese white ceramic.

[0038] Example 3:

[0039] A method for producing double-sided yin-yang finely carved Chinese white ceramic includes the following steps:

[0040] S1: The blank is precisely sculpted using a laser four-dimensional precision carving system. The blank consists of the following components by weight: 35 parts kaolin, 28 parts quartz, 7 parts sodium oxide, 7 parts albite, 7 parts barium sulfate, and 6 parts calcium oxide.

[0041] S2: Blank forming, cooling, glazing and ink application; the forming temperature is 350℃, the forming pressure is 3.5Mpa, the forming time is 9s, the glazing is dip glazing, and the ink application is drop-function ink.

[0042] The glaze for glazing comprises the following components in parts by weight: 16 parts alumina, 16 parts quartz, 17 parts magnesium oxide, 9 parts sodium feldspar, 9 parts barium sulfate, 6 parts modified magnesium aluminum spinel, 16 parts barium nitrate, 16 parts sodium hydroxymethyl cellulose, 20 parts kaolin, and 90 parts water.

[0043] The specific method for preparing the glaze is as follows: the above-mentioned glaze components are mixed and then ball-milled, and the glaze is obtained by sieving after ball milling.

[0044] In addition, the preparation methods of modified magnesium aluminum spinel include:

[0045] Magnesium aluminum spinel, lithium fluoride, polyvinylpyrrolidone, 75% ammonia water, KH570 coupling agent and anhydrous ethanol were mixed in a weight ratio of 20:1:20:40:20:50, magnetically stirred for 1.5 h and dried at 60 °C to obtain modified magnesium aluminum spinel.

[0046] S3: The ceramic body after ink application is fired at a temperature of 600℃ at a heating rate of 10℃ / min, held for 1.5 hours, then heated to 1400℃ at a rate of 2℃ / min, and finally heated to 1600℃ at a rate of 5℃ / min, held for 5 hours, to obtain double-sided yin-yang finely carved Chinese white ceramic.

[0047] Comparative Example 1:

[0048] The processing technology of Comparative Example 1 is basically the same as that of Example 1, except that the magnesium aluminum spinel is not modified and is directly fired, specifically:

[0049] A method for producing double-sided yin-yang finely carved Chinese white ceramic includes the following steps:

[0050] S1: The blank is precisely sculpted using a laser four-dimensional precision carving system. The blank consists of the following components by weight: 25 parts kaolin, 25 parts quartz, 6 parts sodium oxide, 6 parts albite, 6 parts barium sulfate, and 5 parts calcium oxide.

[0051] S2: Blank forming, cooling, glazing and ink application; the forming temperature is 300℃, the forming pressure is 3Mpa, the forming time is 8s, the glazing is dip glazing, and the ink application is drop-function ink.

[0052] The glaze for glazing comprises the following components in parts by weight: 15 parts alumina, 15 parts quartz, 16 parts magnesium oxide, 8 parts albite, 8 parts barium sulfate, 5 parts magnesium aluminum spinel, 15 parts barium nitrate, 15 parts sodium carboxymethyl cellulose, 15 parts kaolin, and 80 parts water.

[0053] The specific method for preparing the glaze is as follows: the above-mentioned glaze components are mixed and then ball-milled, and the glaze is obtained by sieving after ball milling.

[0054] S3: The ceramic blank after ink application is fired at a temperature of 1600℃ at a heating rate of 10℃ / min and held for 4 hours to obtain double-sided yin-yang finely carved Chinese white ceramic.

[0055] The following tests were conducted on the ceramic handicrafts obtained in Examples 1 to 3 of the present invention, Comparative Example 1, and ordinary ceramic handicrafts (purchased from commercially available Velo wear-resistant white ceramics). The test results are shown in Table 1.

[0056] Whiteness: Tested in accordance with industry standard QB / T 1503-2011.

[0057] Mechanical strength: Tested in accordance with GB / T 4740-1999.

[0058] Gloss: The gloss was tested using a photoelectric gloss meter according to the requirements of the national standard GB / T3295-1996 Test Method for 45° Specular Gloss of Ceramic Products.

[0059] Table 1 Test data of Examples 1-3, commercially available ceramics and Comparative Example 1

[0060]

[0061] As can be seen from the table above, the whiteness and gloss of Examples 1-3 are improved compared with Comparative Example 1 and commercially available ceramics, and the compressive strength and fracture toughness are also better.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for producing double-sided yin-yang finely carved Chinese white ceramic, characterized in that, Includes the following steps: S1: The blank is precisely sculpted using a laser four-dimensional precision carving system; S2: Blank forming, cooling, glazing and ink application; S3: Fire the ceramic blank after applying ink to obtain double-sided yin-yang finely carved Chinese white ceramic. In step S3, the firing temperature of the green body is increased at a rate of 10℃ / min to 600℃, held for 1-2 hours, then increased to 1400℃ at a rate of 2℃ / min, and finally increased to 1600℃ at a rate of 5℃ / min, held for 4-6 hours. The glaze applied in step S2 comprises the following components by weight: 15-18 parts alumina, 15-18 parts quartz, 16-18 parts magnesium oxide, 8-10 parts albite, 8-10 parts barium sulfate, 5-8 parts modified magnesium aluminum spinel, 15-18 parts barium nitrate, 15-18 parts sodium carboxymethyl cellulose, 15-25 parts kaolin, and 80-100 parts water. The preparation method of the modified magnesium aluminum spinel includes: Modified magnesium aluminum spinel is obtained by mixing magnesium aluminum spinel, lithium fluoride, polyvinylpyrrolidone, 75% ammonia water (by volume), KH570 coupling agent, and anhydrous ethanol, stirring magnetically for 1-2 hours, and drying at 60°C.

2. The method for producing double-sided yin-yang finely carved Chinese white ceramic as described in claim 1, characterized in that, In step S2, the temperature for forming the blank is 300-400℃, the forming pressure is 3-4 MPa, and the forming time is 8-10 seconds.

3. The method for producing double-sided yin-yang finely carved Chinese white ceramic as described in claim 1, characterized in that, In step S2, the glazing is performed by dipping, and the ink application is performed by dripping functional ink.

4. The method for producing double-sided yin-yang finely carved Chinese white ceramic as described in claim 1, characterized in that, The specific method for preparing the glaze is as follows: the glaze components are mixed and then ball-milled, and the glaze is obtained by sieving after ball milling.

5. The method for producing double-sided yin-yang finely carved Chinese white ceramic as described in claim 1, characterized in that, The weight ratio of magnesium aluminum spinel, lithium fluoride, polyvinylpyrrolidone, ammonia, KH570 coupling agent and anhydrous ethanol is 20:1:20:40:20:

50.

6. The method for producing double-sided yin-yang finely carved Chinese white ceramic as described in claim 1, characterized in that, The blank in step S1 comprises the following components by weight: 25-40 parts kaolin, 25-30 parts quartz, 6-8 parts sodium oxide, 6-8 parts albite, 6-8 parts barium sulfate, and 5-8 parts calcium oxide.

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