阅读说明：本技术 一种耐磨高硬度陶瓷釉料及其制备方法 (Wear-resistant high-hardness ceramic glaze and preparation method thereof ) 是由 黄奕雯 于 2019-12-16 设计创作，主要内容包括：本发明公开了一种耐磨高硬度陶瓷釉料及其制备方法,涉及陶瓷釉料技术领域,该耐磨高硬度陶瓷釉料,包括以下原料：钠长石、钾长石、高岭土、石英砂、锌白、高铝粘土、方解石、滑石、锂瓷、堇青石、锆英砂、莫来石粉、硅灰石、碳化硼、五氧化二铌、氧化锌、熔块；本发明提供的釉料制成的全抛釉砖的维氏硬度和耐磨性均具有提高,满足了更高硬度和耐磨性的全抛釉釉面砖的市场需求；釉面在烧制时不会产生大量的气泡,产品抛后防污能力强,其光泽度也较高；全抛釉釉面砖的釉层膨胀系数接近于瓷砖坯体,釉层受到的内应力较小,抛光时不会产生漏抛或局部露底现象,保证产品质量。(The invention discloses a wear-resistant high-hardness ceramic glaze and a preparation method thereof, relating to the technical field of ceramic glaze, wherein the wear-resistant high-hardness ceramic glaze comprises the following raw materials: albite, potassium feldspar, kaolin, quartz sand, zinc white, high alumina clay, calcite, talcum, lithium porcelain, cordierite, zircon sand, mullite powder, wollastonite, boron carbide, niobium pentoxide, zinc oxide and frit; the Vickers hardness and the wear resistance of the fully-glazed tile made of the glaze provided by the invention are both improved, and the market demand of the fully-glazed tile with higher hardness and wear resistance is met; the glaze surface does not generate a large amount of bubbles during firing, and the product has strong antifouling capability after being polished and higher glossiness; the expansion coefficient of the glaze layer of the full-glazed tile is close to that of a tile blank, the internal stress of the glaze layer is small, the phenomena of missing polishing or partial bottom exposure can not occur during polishing, and the product quality is ensured.)

1. The wear-resistant high-hardness ceramic glaze is characterized by comprising the following raw materials in parts by weight:

20-30 parts of albite, 10-16 parts of potassium feldspar, 4-9 parts of kaolin, 6-12 parts of quartz sand, 4-8 parts of zinc white, 3-6 parts of high alumina clay, 7-13 parts of calcite, 5-9 parts of talc, 3-7 parts of lithium porcelain stone, 6-14 parts of cordierite, 5-11 parts of zircon sand, 3-8 parts of mullite powder, 7-14 parts of wollastonite, 2-5 parts of boron carbide, 3-7 parts of niobium pentoxide, 2-6 parts of zinc oxide and 12-22 parts of fusion cake.

2. The wear-resistant high-hardness ceramic glaze according to claim 1, wherein the wear-resistant high-hardness ceramic glaze comprises the following raw materials in parts by weight:

23-27 parts of albite, 12-14 parts of potassium feldspar, 5-8 parts of kaolin, 8-10 parts of quartz sand, 5-7 parts of zinc white, 4-5 parts of high alumina clay, 9-12 parts of calcite, 6-8 parts of talc, 4-6 parts of lithium porcelain stone, 8-12 parts of cordierite, 7-9 parts of zircon sand, 4-6 parts of mullite powder, 9-12 parts of wollastonite, 3-4 parts of boron carbide, 4-6 parts of niobium pentoxide, 3-5 parts of zinc oxide and 15-19 parts of fusion cake.

3. The wear-resistant high-hardness ceramic glaze according to claim 2, wherein the wear-resistant high-hardness ceramic glaze comprises the following raw materials in parts by weight:

25 parts of albite, 13 parts of potassium feldspar, 7 parts of kaolin, 9 parts of quartz sand, 6 parts of zinc white, 4.5 parts of high alumina clay, 11 parts of calcite, 7 parts of talc, 5 parts of lithium porcelain stone, 10 parts of cordierite, 8 parts of zircon sand, 5 parts of mullite powder, 10 parts of wollastonite, 3.5 parts of boron carbide, 5 parts of niobium pentoxide, 4 parts of zinc oxide and 17 parts of frit.

4. The wear-resistant high-hardness ceramic glaze according to any one of claims 1 to 3, wherein the frit comprises the following raw materials in percentage by mass: 26-35% of potassium feldspar, 3-7% of zinc oxide, 18-26% of quartz, 6-9% of barium carbonate, 6-12% of corundum and the balance of calcite.

5. The wear-resistant high-hardness ceramic glaze according to claim 4, wherein the frit comprises the following raw materials in percentage by mass: 28-32% of potassium feldspar, 4-6% of zinc oxide, 20-24% of quartz, 7-8% of barium carbonate, 8-10% of corundum and the balance of calcite.

6. The wear-resistant high-hardness ceramic glaze according to claim 5, wherein the frit comprises the following raw materials in percentage by mass: 30% of potassium feldspar, 5% of zinc oxide, 22% of quartz, 7.5% of barium carbonate, 9% of corundum and the balance of calcite.

7. A method for preparing a wear-resistant high-hardness ceramic glaze according to any one of claims 1 to 6, comprising the steps of:

step one, weighing the raw materials according to the formula ratio, crushing the raw materials, and screening the crushed raw materials through a standard sieve of 325-380 meshes to obtain granular raw materials meeting the requirements;

and step two, putting the particle raw materials and water in the step one into a ball mill for ball milling to prepare the wear-resistant high-hardness ceramic glaze slip.

8. The method for preparing a wear-resistant high-hardness ceramic glaze according to claim 7, further comprising:

step three, ball milling, sieving, iron removal, granulation and compression molding are sequentially carried out on the green brick material, and after drying, water spraying and ground glaze applying, printing or ink jet coloring, the wear-resistant high-hardness ceramic glaze slip in the step two is used for linear glaze spraying;

and step four, firing the linearly glazed green brick in a kiln at the firing temperature of 1080-1230 ℃ in a reducing atmosphere, and polishing to obtain the fully polished ceramic tile.

9. The method for preparing a wear-resistant high-hardness ceramic glaze material according to claim 7, wherein the ratio of the raw material particles to water in the second step is 1: 0.6 to 0.7 and the ball milling time is 18 to 22 hours.

10. The method for preparing the abrasion-resistant high-hardness ceramic glaze material according to claim 8, wherein the heat preservation time for the kiln firing in the fourth step is 5-7min, and the total firing time is 55-65 min.

Technical Field

The invention relates to the technical field of ceramic glaze, in particular to wear-resistant high-hardness ceramic glaze and a preparation method thereof.

Background

The full-glazed glaze is a glaze with a special formula, which can be applied to the glazed surface of an antique brick, is a last glaze, generally a transparent overglaze or a transparent convex glaze, integrates the advantages of the glazed brick and the antique brick, is smooth and bright as the glazed surface of the glazed brick, and has rich patterns, thick colors or gorgeous colors as the antique brick. The glaze material features that the transparent glaze layer and the fancy glaze layer are not covered, only one thin layer of transparent glaze layer is thrown away during glaze throwing, and the transparent convex fancy glaze layer is used as the outstanding whole glaze layer.

As a brand new production process, the fully-glazed tile has a plurality of technical problems, such as low glaze hardness (Vickers hardness of 605.5HV0.5), no wear loss, poor high-temperature fluidity and easy occurrence of water ripple, and the glaze is easy to generate a large amount of bubbles during firing, so that the product has poor antifouling capacity and light loss after being polished, the expansion coefficient of the glaze layer of the fully-glazed tile is smaller than that of a tile blank, the internal stress of the glaze layer is larger, so that the glaze layer deforms during firing, thereby causing the phenomena of missing polishing or local bottom exposure during polishing, and the firing temperature range of the fully-glazed tile is smaller, thereby causing the production process to be difficult to control and being difficult to ensure the stability of the product quality.

According to the technical field of ceramic glaze production and processing, 1, a wear-resistant high-hardness ceramic formula and a production process thereof are disclosed in Chinese patent with publication No. CN104803604B, 10, 3, 10, 3, 10, 3, 4, 10, 3, 4, 10, 3, 4, 10, 3, 4, 10, 3, 10.

Although the technical scheme improves the hardness and the wear resistance of the ceramic glaze layer to a certain extent, and also solves the problem that the glaze layer has water ripples, the Vickers hardness can reach 723.6HV0.5 at most, and the wear-resistant loss can reach 0.42g/12000 at most, the technical scheme still can not meet the market demand of the full-glazed tile with higher hardness and wear resistance, and the technical scheme also can not well solve the following problems at the same time: a large amount of bubbles are easily generated during firing of the glaze surface, so that the product has poor antifouling capability and is not polished; the expansion coefficient of a glaze layer of the full-glazed tile is smaller than that of a tile blank, and the glaze layer is subjected to large internal stress, so that the glaze layer is deformed during firing, and the phenomena of polishing leakage or local bottom exposure are easily caused during polishing; the firing temperature range of the fully-glazed tile is small, so that the production process is not easy to control, and the stability of the product quality is difficult to ensure.

Disclosure of Invention

The invention aims to provide a wear-resistant high-hardness ceramic glaze material to solve the problem that the prior art is difficult to meet the market demand of a full-glazed tile with higher hardness and wear resistance.

In order to achieve the purpose, the invention provides the following technical scheme:

the wear-resistant high-hardness ceramic glaze comprises the following raw materials in parts by weight:

20-30 parts of albite, 10-16 parts of potassium feldspar, 4-9 parts of kaolin, 6-12 parts of quartz sand, 4-8 parts of zinc white, 3-6 parts of high alumina clay, 7-13 parts of calcite, 5-9 parts of talc, 3-7 parts of lithium porcelain stone, 6-14 parts of cordierite, 5-11 parts of zircon sand, 3-8 parts of mullite powder, 7-14 parts of wollastonite, 2-5 parts of boron carbide, 3-7 parts of niobium pentoxide, 2-6 parts of zinc oxide and 12-22 parts of fusion cake.

Preferably, the wear-resistant high-hardness ceramic glaze comprises the following raw materials in parts by weight: 23-27 parts of albite, 12-14 parts of potassium feldspar, 5-8 parts of kaolin, 8-10 parts of quartz sand, 5-7 parts of zinc white, 4-5 parts of high alumina clay, 9-12 parts of calcite, 6-8 parts of talc, 4-6 parts of lithium porcelain stone, 8-12 parts of cordierite, 7-9 parts of zircon sand, 4-6 parts of mullite powder, 9-12 parts of wollastonite, 3-4 parts of boron carbide, 4-6 parts of niobium pentoxide, 3-5 parts of zinc oxide and 15-19 parts of fusion cake.

Preferably, the wear-resistant high-hardness ceramic glaze comprises the following raw materials in parts by weight: 25 parts of albite, 13 parts of potassium feldspar, 7 parts of kaolin, 9 parts of quartz sand, 6 parts of zinc white, 4.5 parts of high alumina clay, 11 parts of calcite, 7 parts of talc, 5 parts of lithium porcelain stone, 10 parts of cordierite, 8 parts of zircon sand, 5 parts of mullite powder, 10 parts of wollastonite, 3.5 parts of boron carbide, 5 parts of niobium pentoxide, 4 parts of zinc oxide and 17 parts of frit.

Preferably, the frit comprises the following raw materials in percentage by mass: 26-35% of potassium feldspar, 3-7% of zinc oxide, 18-26% of quartz, 6-9% of barium carbonate, 6-12% of corundum and the balance of calcite.

Preferably, the frit comprises the following raw materials in percentage by mass: 28-32% of potassium feldspar, 4-6% of zinc oxide, 20-24% of quartz, 7-8% of barium carbonate, 8-10% of corundum and the balance of calcite.

Preferably, the frit comprises the following raw materials in percentage by mass: 30% of potassium feldspar, 5% of zinc oxide, 22% of quartz, 7.5% of barium carbonate, 9% of corundum and the balance of calcite.

Another object of the present invention is to provide a method for preparing a wear-resistant high-hardness ceramic enamel according to any one of claims 1 to 6, comprising the following steps:

step one, weighing the raw materials according to the formula ratio, crushing the raw materials, and screening the crushed raw materials through a standard sieve of 325-380 meshes to obtain granular raw materials meeting the requirements;

and step two, putting the particle raw materials and water in the step one into a ball mill for ball milling to prepare the wear-resistant high-hardness ceramic glaze slip.

Preferably, the preparation method of the wear-resistant high-hardness ceramic glaze further comprises the following steps:

step three, ball milling, sieving, iron removal, granulation and compression molding are sequentially carried out on the green brick material, and after drying, water spraying and ground glaze applying, printing or ink jet coloring, the wear-resistant high-hardness ceramic glaze slip in the step two is used for linear glaze spraying;

and step four, firing the linearly glazed green brick in a kiln at the firing temperature of 1080-1230 ℃ in a reducing atmosphere, and polishing to obtain the fully polished ceramic tile.

Preferably, the ratio of the granular raw material to the water in the second step is 1: 0.6 to 0.7 and the ball milling time is 18 to 22 hours.

Preferably, the heat preservation time of the kiln firing in the fourth step is 5-7min, and the total firing time is 55-65 min.

Compared with the prior art, the invention has the beneficial effects that:

1. the Vickers hardness and the wear resistance of the fully-glazed tile made of the glaze provided by the invention are both improved, and the market demand of the fully-glazed tile with higher hardness and wear resistance is met;

2. the glaze surface does not generate a large amount of bubbles during firing, and the product has strong antifouling capability after being polished and higher glossiness;

3. the expansion coefficient of the glaze layer of the full-glazed tile is close to that of a tile blank, the internal stress of the glaze layer is small, the phenomena of missing polishing or partial bottom exposure can not occur during polishing, and the product quality is ensured;

4. the firing temperature range of the wear-resistant high-hardness ceramic glaze material provided by the invention is 1080-.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.