High-alkali variable-valence activated functional film for medium-temperature reductive firing art ceramic decoration, and preparation and sintering methods of high-alkali variable-valence activated functional film for medium-temperature reductive firing art ceramic decoration

Abstract

The invention relates to a new material for art ceramic decoration, in particular to a high-alkali variable-valence activated functional film for art ceramic decoration through medium-temperature reduction firing and a preparation and sintering method, and the high-alkali variable-valence activated functional film comprises 20%-30% of high-activity variable-valence functional element composition and 70%-80% of basic functional environment group composition. According to the high-alkali variable-valence activated functional film for medium-temperature reductive firing art ceramic decoration provided by the invention, main functional elements of the film are composed of low-bond-energy high-enthalpy active components and iron group variable-valence element oxides, and on one hand, the components of the high-alkali variable-valence activated film permeate into the surface layer of a green body; and secondly, through the action of the glaze and the decorative glaze, the reaction activity of the glaze is enhanced, the phase splitting of the glaze body and the formation of a self-crystallization mechanism of the glaze body are enhanced, the transmutation effect is enriched, and the novel decorative effect of firing under the medium-temperature reduction condition is obtained.

Description

Technical Field

[0001] The invention relates to a new material for artistic ceramic decoration, in particular to a high-alkali valence-changing activation functional film for artistic ceramic decoration by medium-temperature reduction firing and a preparation and sintering method thereof. Background Art

[0002] The decorative appearance of ceramics obtained by reduction firing of artistic ceramics only depends on the reaction effect of the glaze itself under the influence of the atmosphere. The body does not have obvious artistic texture effects. The overall decorative richness of the product is limited, and the controllability of the effect changes is poor, which restricts the further development of artistic ceramic products. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a high-alkali valence activation functional film for medium-temperature reduction firing of artistic ceramic decoration, and the specific technical solution is:

[0004] A high alkali valence activation functional film for medium temperature reduction firing artistic ceramic decoration comprises a functional film composed of 20% to 30% of high alkali valence activation functional elements and 80% to 70% of basic functional environmental groups.

[0005] Preferably, the high alkali valence-changing activation functional elements include, in parts by mass: WO3: 10-14 parts, Bi2O3: 8-11 parts, K2O: 15-25 parts, Fe2O3: 10-16 parts, TiO2: 2-4, MgCO3: 8-12 parts, Na2O: 10-15 parts, Li2O: 6-8, SiO2: 8-11 parts, and V2O5: 5-10 parts.

[0006] Preferably, the basic functional environmental groups include, by mass, 20 to 26 parts of lithium feldspar, 8 to 15 parts of quartz, 8 to 11 parts of Suzhou soil, 2 to 4 parts of BaCO3, 4 to 6 parts of SrCO3, 5 to 9 parts of calcium phosphate, 10 to 15 parts of TiO2, 5 to 8 parts of calcite, and 20 to 26 parts of talc.

[0007] A method for preparing a high-alkali valence-changing activation functional film for medium-temperature reduction firing artistic ceramic decoration comprises the following steps:

[0008] The preparation of the high alkali valence-changing activation functional element is as follows: the high alkali valence-changing activation functional element and water are put into a ball mill for ball milling, sieving after ball milling, calcining after sieving, the calcination temperature is 1000-1200° C., and after calcination, the high alkali valence-changing activation functional element powder is ball milled;

[0009] The preparation of the basic functional environmental group: putting the basic functional environmental group and water into a ball mill for ball milling;

[0010] Put the high-alkali variable-valence activating functional powder material into a ball mill and mix it with the basic functional environment groups by ball milling. After ball milling, sieve it and adjust the concentration to 45-50 degrees Baume.

[0011] A decorative firing method for a high-alkali variable-valence activating functional film used for medium-temperature reduction firing art ceramics decoration, which is used for the high-alkali variable-valence activating functional film for medium-temperature reduction firing art ceramics decoration. The high-alkali variable-valence activating functional film for medium-temperature reduction firing art ceramics decoration is decorated on the surface of the ceramic blank by dipping or spraying glaze, and local glaze is decorated on it according to the design effect. After drying, it is fired in a reducing atmosphere at 1180-1200 °C.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The main functional elements of the high-alkali variable-valence activating functional film for medium-temperature reduction firing art ceramics decoration provided by the present invention are composed of low-bond-energy high-enthalpy active components and iron-group variable-valence element oxides. One is to achieve a unique and stable novel kiln transformation texture art effect on the surface of the blank in a reducing atmosphere through the double penetration of high alkali and variable-valence components in the film into the blank. The other is to enhance the reaction activity of the glaze, strengthen the phase separation of the glaze body and the formation of its self-crystallization mechanism through the action of the film and the decorative glaze, enrich the kiln transformation effect, and obtain an art ceramic with a new decorative effect that can be stably and controllably fired under medium-temperature reduction conditions. The product has a simple and elegant appearance, is thought-provoking, and greatly expands the art effect space and added value of art ceramic products. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the effect of the high-alkali variable-valence activating functional film for medium-temperature reduction firing art ceramics decoration acting on the blank;

[0015] Figure 2 It is a schematic diagram of the effect of the high-alkali variable-valence activating functional film for medium-temperature reduction firing art ceramics decoration acting on the decorative glaze. Detailed Embodiments

[0016] Now, the present invention will be further described in conjunction with the accompanying drawings.

[0017] Low bond energy and high enthalpy active components such as alkali metal oxides and iron group variable valence element oxides such as titanium and iron are pre-treated and compounded to form active variable valence activation functional elements, enabling stable and controllable operation even under general medium-temperature reduction firing conditions. Firstly, through the dual penetration of the high-alkali and variable valence components in the film into the green body, a unique and stable novel kiln transformation texture artistic effect on the surface of the green body in a reducing atmosphere is achieved. Secondly, through the action of the film and the decorative glaze, the reaction activity of the glaze is enhanced, the phase separation of the glaze body and the formation of its self-crystallization mechanism are strengthened, the kiln transformation effect is enriched, and a new type of decorative effect artistic ceramic that can be fired under medium-temperature reduction conditions is obtained. The product effect changes are rich and unique, filling the gap in the manufacture of medium-temperature reduction firing characteristic artistic ceramics by introducing functional films.

[0018] A high-alkali variable valence activation functional film for medium-temperature reduction firing artistic ceramic decoration belongs to a new material for medium-temperature reduction firing artistic ceramic decoration. The functional film of this application can be decorated on the surface of the ceramic green body by the dip glazing or spray glazing method, and after drying, it is fired in a shuttle gas kiln at 1180 - 1200 degrees under reduction. The preparation process of this application belongs to a conventional process, with a simple process, suitable for the decoration of high-grade artistic ceramics and daily-use ceramics, having a novel and unique decorative effect, and being a new type of artistic ceramic decoration material with a special effect formation mechanism.

[0019] Example 1

[0020] As Figure 1 shown, the effect of the high-alkali variable valence activation functional film for medium-temperature reduction firing artistic ceramic decoration on the green body:

[0021] High-alkali variable valence activation functional elements: WO3: 12%, Bi2O3: 9.5%, K2O: 18%, Fe2O3: 12%, TiO2: 3, MgCO3: 9.5%, Na2O: 13%, Li2O: 7, SiO2: 9%, V2O5: 7%.

[0022] The above raw materials are weighed separately and added to a ball mill, ball milled and mixed with a material-water ratio of 1:0.8, screened through a 60-mesh sieve, dried and then calcined in a kiln at 1100 °C for steady-state synthesis, and the ball-milled powder passing through an 80-mesh sieve is reserved for use.

[0023] Basic functional environment groups: spodumene: 23%, quartz: 9.5%, Suzhou clay: 9.5%, BaCO3: 3%, SrCO3: 5%, calcium phosphate: 7%, TiO2: 13%, calcite: 7%, talc: 23%.

[0024] The above raw materials are weighed separately and added to a ball mill, ball milled with a material-water ratio of 1:0.8, and 2 hours before discharging the balls, the high-activity variable valence mineralization functional element powder is added in a ratio of 78:22 for ball milling together, screened through a 100-mesh sieve, and the concentration is adjusted to 49 Baumé for reserve.

[0025] The finished slurry of the high-alkali variable-valence mineralization functional membrane of the present invention is decorated on the surface of the ceramic body by dipping glaze or spraying glaze, and then reduced and fired at 1190° C. in a shuttle gas kiln after drying.

[0026] Embodiment 2

[0027] like Figure 2 As shown, the effect of decorative glaze with high alkali valence activation functional film used in medium temperature reduction firing of artistic ceramic decoration is as follows:

[0028] High alkali valence activation functional elements: WO3: 11%, Bi2O3: 9%, K2O: 20.5%, Fe2O3: 13%, TiO2: 2.5, MgCO3: 9%, Na2O: 14%, Li2O: 6.5, quartz: 8.5%, V2O5: 6.

[0029] The above raw materials were weighed separately and added into a ball mill, and mixed by ball milling at a material-water ratio of 1:0.8. The raw materials were sieved through a 60-mesh sieve, dried, and calcined in a kiln at 1100 degrees for steady-state synthesis. The powder was sieved through an 80-mesh sieve for later use.

[0030] Basic functional environmental groups: lithium feldspar: 22%, quartz: 10%, Suzhou soil: 9%, BaCO3: 4%, SrCO3: 6%, calcium phosphate: 6%, TiO2: 12%, calcite: 8%, talc: 23%.

[0031] The above raw materials were weighed separately and added into the ball mill for ball milling with a ratio of 1:0.8 between material and water. Two hours before balling, high-activity valence-changing functional element powder was added at a ratio of 75:25 and ball milled together. The mixture was passed through a 100-mesh sieve and the concentration was adjusted to 49 degrees Baume for later use.

[0032] The finished film slurry of the present invention is decorated on the surface of the ceramic body by dipping glaze or spraying glaze, and glaze decoration is performed locally according to the design. After drying, it is reduced and fired at 1200° C. in a shuttle gas kiln.

[0033] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A high-alkali valence-changing activation functional film for medium-temperature reduction firing of artistic ceramic decoration, characterized in that: The functional membrane comprises 20% to 30% of high-base valence-changing activation functional elements and 80% to 70% of basic functional environmental groups.

2. The high-alkali valence-changing activation functional film for medium-temperature reduction-sintered artistic ceramic decoration according to claim 1, characterized in that: The high base valence activation functional element comprises, by weight: WO3: 10-14 parts, Bi2O3: 8-11 parts, K2O: 15-25 parts, Fe2O3: 10-16 parts, TiO2: 2-4, MgCO3: 8-12 parts, Na2O: 10-15 parts, Li2O: 6-8, SiO2: 8-11 parts, V2O5: 5-10 parts.

3. The high-alkali valence-changing activation functional film for medium-temperature reduction-sintered artistic ceramic decoration according to claim 1, characterized in that: The basic functional environmental groups include, by mass: Lithium feldspar: 20-26 parts, quartz: 8-15 parts, Suzhou soil: 8-11 parts, BaCO3: 2-4 parts, SrCO3: 4-6 parts, calcium phosphate: 5-9 parts, TiO2: 10-15 parts, calcite: 5-8 parts, talc: 20-26 parts.

4. The method for preparing a high-alkali valence-changing activation functional film for artistic ceramic decoration by medium-temperature reduction firing according to claim 1, characterized in that: The following steps are involved: The preparation of the high alkali valence-changing activation functional element is as follows: the high alkali valence-changing activation functional element and water are put into a ball mill for ball milling, sieving after ball milling, calcining after sieving, the calcination temperature is 1000-1200° C., and after calcination, the high alkali valence-changing activation functional element powder is ball milled; The preparation of the basic functional environmental group: putting the basic functional environmental group and water into a ball mill for ball milling; The high alkali valence-changing activated functional element powder is put into a ball mill and mixed with the basic functional environmental group for ball milling. After the ball milling is completed, it is sieved and the concentration is adjusted to 45-50 degrees Baume.

5. A decorative firing method for a high-alkali valence-changing activated functional film for artistic ceramic decoration fired at a medium temperature reduction, used for the high-alkali valence-changing activated functional film for artistic ceramic decoration fired at a medium temperature reduction as claimed in claim 1, characterized in that: A medium-temperature reduction fired artistic ceramic decoration high alkali valence activation functional film is decorated on the surface of the ceramic body by dipping or spraying glaze, and glaze is locally decorated on it according to the design effect, and then reduced and fired at 1180-1200℃ after drying.

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