阅读说明：本技术 一种黑色岩板及其制备方法 (Black rock plate and preparation method thereof ) 是由 匡木庆 刘俊荣 于 2021-08-31 设计创作，主要内容包括：本申请提供一种黑色岩板及其制备方法,该黑色岩板包括抛釉层,抛釉层的抛釉釉浆包括：配方重量份的闪光抛釉,黄金属颗粒和悬浮剂；其中闪光抛釉包括：配方重量份的钾长石、石英、方解石、红长石、透光石、铁矿石、草木灰、氧化铜和铁红粉。该黑色岩板的制备方法包括：将闪光抛釉、黄金属颗粒和悬浮剂混合,得到抛釉釉浆；在岩板生坯上布施所述抛釉釉浆,形成抛釉层,得到黑色岩板。本申请提供的黑色岩板,通过选用特定的釉料配方,直接在抛釉层上获得黑色釉面效果,且釉面发色自然,有较高光泽度,釉层中的釉料与黄金属颗粒由于在熔融温度上存在差异,烧制冷却后可得到类似真石的结晶肌理,且其制备工艺简单、易控制。(The application provides a black rock plate and a preparation method thereof, the black rock plate comprises a glaze-polishing layer, and glaze-polishing glaze slip of the glaze-polishing layer comprises: flash polished glaze, gold particles and suspending agent in parts by weight; wherein the flashing glaze polishing comprises: potassium feldspar, quartz, calcite, red feldspar, transparent stone, iron ore, plant ash, copper oxide and iron oxide red powder according to the weight parts of the formula. The preparation method of the black rock plate comprises the following steps: mixing flash polished glaze, gold particles and a suspending agent to obtain polished glaze slip; and distributing the glaze polishing glaze slip on the rock plate green body to form a glaze polishing layer, so as to obtain the black rock plate. The application provides a black rock plate, through selecting for use specific frit formulation, directly obtain black glaze effect on throwing the glaze layer, and the glaze color development is natural, has higher glossiness, and the frit in the glaze layer and golden particle can obtain the crystal texture of similar true stone owing to there is the difference on the melting temperature, fire the cooling back, and its preparation simple process, easy control.)

1. The black rock plate is characterized by comprising a glaze polishing layer, wherein glaze polishing glaze slip of the glaze polishing layer comprises the following components in parts by weight: 80-100 parts of flash polished glaze, 5-15 parts of gold particles and 10-30 parts of a suspending agent;

the flash glaze polishing comprises the following raw materials in parts by weight: 30-45 parts of potash feldspar, 10-16 parts of quartz, 8-15 parts of calcite, 5-15 parts of red feldspar, 3-7 parts of transparent stone, 5-10 parts of iron ore, 5-8 parts of plant ash, 3-6 parts of copper oxide and 2-5 parts of iron oxide red powder.

2. The black rock plate of claim 1, wherein the flash glaze polishing comprises the following raw materials in parts by weight: 30-40 parts of potash feldspar, 10-15 parts of quartz, 8-12 parts of calcite, 9-15 parts of red feldspar, 5-7 parts of transparent stone, 5-10 parts of iron ore, 6-8 parts of plant ash, 4-6 parts of copper oxide and 3-5 parts of iron oxide red powder.

3. The black rock plate of claim 1, wherein the flash glaze polishing comprises the following raw materials in parts by weight: 35-45 parts of potash feldspar, 12-16 parts of quartz, 10-15 parts of calcite, 5-7 parts of red feldspar, 3-6 parts of transparent stone, 5-10 parts of iron ore, 5-8 parts of plant ash, 3-5 parts of copper oxide and 2-4 parts of iron oxide red powder.

4. The black rock panel according to any one of claims 1 to 3, wherein the yellow metal particles have a particle size of 60 to 200 mesh.

5. A method for producing the black rock plate according to any one of claims 1 to 4, comprising:

mixing flash polished glaze, gold particles and a suspending agent to obtain polished glaze slip;

and distributing the glaze polishing glaze slip on the rock plate green body to form a glaze polishing layer, so as to obtain the black rock plate.

6. The method of making black rock panels of claim 5, wherein said mixing comprises:

and uniformly mixing the gold particles and the suspending agent to form a mixture, and adding the mixture into the flash glaze polishing to be uniformly mixed.

7. The method for preparing a black rock plate according to claim 5, wherein the glaze slip has a specific gravity of 1.8 to 1.9 and a flow rate of 25 to 30 seconds;

and when the glaze-throwing glaze slip is applied, the temperature of the rock plate green body is 80-90 ℃.

8. The method for preparing a black rock plate according to claim 5, wherein the glaze-polishing slip is applied by spraying glaze in an amount of 800-1000 g/m²。

9. The method for preparing a black rock plate according to claim 5, wherein before the applying of the glaze slip, the rock plate green body is subjected to a pretreatment, specifically comprising:

sequentially drying, polishing, dedusting and spraying water on the rock plate green body;

the water spraying amount of the water spraying treatment is 20-30 g/m²。

10. The method for preparing a black rock plate according to any one of claims 5 to 9, wherein the formation of the glaze layer is followed by drying and firing treatments in order to obtain the black rock plate;

the drying temperature is 135-155 ℃, and the drying time is 8-10 min;

the firing temperature is 1180-1200 ℃, and the firing time is 80-90 min.

Technical Field

The application relates to the technical field of building ceramics, in particular to a black rock plate and a preparation method thereof.

Background

The marble is a large category of natural architectural decoration stone, and attracts consumers due to the characteristics of beautiful appearance and high practicability. Among them, the black marble has elegant, noble, beautiful, solemn, luxurious and other decorative effects due to its lusterless luster, and is deeply popular with consumers. However, as the economic level is continuously improved, more and more people are pursuing high-quality home decoration effect, but the stone resource is limited, and the processing cost is high, so that a large amount of marble-imitated plates are appeared in the market to replace natural marble stones.

As a fresh air inlet in the field of home furnishing, the ceramic rock plate has the characteristics of large specification, strong plasticity, high temperature resistance, seepage prevention, environmental protection, health and the like, and is more and more favored by consumers. In order to make the ceramic rock plate have a decorative effect similar to that of black marble, many manufacturers use different processes to imitate the ceramic rock plate, for example, a preparation process of ink-jet printing of black golden flower is used to imitate the black golden flower marble, but the process flow is relatively complex, the color development level of the surface of the prepared plate is not natural enough to achieve the effect of real stone, the cost is high, and the requirements of consumers are difficult to be triggered.

Disclosure of Invention

The application aims to provide the black rock plate which is simple and convenient in production process and low in cost, and the texture of the glaze surface of the black rock plate can restore the crystalline texture of real stone.

In order to achieve the above object, the present application provides a black rock plate, including throwing the glaze layer, the glaze throwing glaze slip of throwing the glaze layer includes according to parts by weight: 80-100 parts of flash polished glaze, 5-15 parts of gold particles and 10-30 parts of a suspending agent;

the flash glaze polishing comprises the following raw materials in parts by weight: 30-45 parts of potash feldspar, 10-16 parts of quartz, 8-15 parts of calcite, 5-15 parts of red feldspar, 3-7 parts of transparent stone, 5-10 parts of iron ore, 5-8 parts of plant ash, 3-6 parts of copper oxide and 2-5 parts of iron oxide red powder.

Preferably, the flash glaze polishing comprises the following raw materials in parts by weight: 30-40 parts of potash feldspar, 10-15 parts of quartz, 8-12 parts of calcite, 9-15 parts of red feldspar, 5-7 parts of transparent stone, 5-10 parts of iron ore, 6-8 parts of plant ash, 4-6 parts of copper oxide and 3-5 parts of iron oxide red powder.

Preferably, the flash glaze polishing comprises the following raw materials in parts by weight: 35-45 parts of potash feldspar, 12-16 parts of quartz, 10-15 parts of calcite, 5-7 parts of red feldspar, 3-6 parts of transparent stone, 5-10 parts of iron ore, 5-8 parts of plant ash, 3-5 parts of copper oxide and 2-4 parts of iron oxide red powder.

Preferably, the particle size of the gold particles is 60-200 meshes.

The application also provides a preparation method of the black rock plate, which comprises the following steps:

mixing flash polished glaze, gold particles and a suspending agent to obtain polished glaze slip;

and distributing the glaze polishing glaze slip on the rock plate green body to form a glaze polishing layer, so as to obtain the black rock plate.

Preferably, the mixing comprises:

and uniformly mixing the gold particles and the suspending agent to form a mixture, and adding the mixture into the flash glaze polishing to be uniformly mixed.

Preferably, the specific gravity of the glaze polishing slip is 1.8-1.9, and the flow speed is 25-30 s;

and when the glaze-throwing glaze slip is applied, the temperature of the rock plate green body is 80-90 ℃.

Preferably, the glaze-polishing glaze slurry is applied in a glaze pouring mode, and the application amount is 800-1000 g/m²。

Preferably, before the glaze-throwing slip is applied, the rock plate green body is subjected to pretreatment, and the method specifically comprises the following steps:

sequentially drying, polishing, dedusting and spraying water on the rock plate green body;

the water spraying amount of the water spraying treatment is 20-30 g/m²。

Preferably, after the glaze polishing layer is formed, drying and firing treatment are sequentially carried out to obtain the black rock plate;

the drying temperature is 135-155 ℃, and the drying time is 8-10 min;

the firing temperature is 1180-1200 ℃, and the firing time is 80-90 min.

The beneficial effect of this application:

the application provides a black rock plate chooses for use specific glaze formula, directly obtains the glaze effect of imitative black marble through throwing the glaze layer, has really reduced the crystal texture of natural stone material. The glaze-polishing slip of the glaze-polishing layer contains flash polished glaze, gold particles and a suspending agent, wherein the raw materials of iron ore, copper oxide, iron red powder and the like in the glaze of the flash polished glaze are fired at high temperature to enable the glaze layer to be black, and then the glaze layer is mixed with other raw materials in proportion for firing, so that the obtained black glaze layer is natural in color development and high in glossiness, the transparency of the glaze layer can be increased due to the addition of the transparent stone in the glaze, and the black glaze layer can also show a high-brightness flash effect under the irradiation of sunlight or lamplight. When the glaze-polishing layer is fired, the melting temperatures of the glaze and the gold particles are different, so that the yellow metal particles in the cooled black glaze-polishing glaze are combined with the glaze to present a crystalline texture, and the decorative effect similar to black real stone is realized like the texture of natural stone.

According to the preparation method of the black rock plate, a common surface glaze layer and a pattern layer are not required to be distributed on the surface of a rock plate green body, and glaze-throwing glaze slip containing gold particles is directly distributed on the surface of the green body, so that the operation process is simple and easy to control, and the preparation method is suitable for large-scale production.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments are briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope of the present application.

FIG. 1 is a photograph of a black rock plate made in example 1 under light;

FIG. 2 is a photograph of the black rock plate obtained in example 2 under light irradiation;

FIG. 3 is a photograph of the black rock plate obtained in example 3 under light irradiation;

FIG. 4 is a photograph of the black rock plate obtained in example 4 under light.

Detailed Description

The terms as used herein:

"prepared from … …" is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

The conjunction "consisting of … …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of … …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when the range "1 ~ 5" is disclosed, the ranges described should be construed to include the ranges "1 ~ 4", "1 ~ 3", "1 ~ 2 and 4 ~ 5", "1 ~ 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.

In these examples, the parts and percentages are by mass unless otherwise indicated.

"parts by mass" or "parts by weight" means a basic unit of measurement indicating a mass ratio of a plurality of components, and 1 part may represent any unit mass, for example, 1g or 2.689 g. If we say that the part by mass of the component A is a part by mass and the part by mass of the component B is B part by mass, the ratio of the part by mass of the component A to the part by mass of the component B is a: b. alternatively, the mass of the A component is aK and the mass of the B component is bK (K is an arbitrary number, and represents a multiple factor). It is unmistakable that, unlike the parts by mass, the sum of the parts by mass of all the components is not limited to 100 parts.

"and/or" is used to indicate that one or both of the illustrated conditions may occur, e.g., a and/or B includes (a and B) and (a or B).

The application provides a black rock plate, including throwing the glaze layer, wherein throw the glaze slip of throwing the glaze layer and include according to parts by weight: 80-100 parts (specifically, any value between 80 parts, 81 parts, 82 parts, 83 parts, 84 parts, 85 parts, 86 parts, 87 parts, 88 parts, 89 parts, 90 parts, 91 parts, 92 parts, 93 parts, 94 parts, 95 parts, 96 parts, 97 parts, 98 parts, 99 parts, 100 parts or 80-100 parts) of flash glaze polishing, 5-15 parts (specifically, any value between 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts or 5-15 parts) of gold particles and 10-30 parts (specifically, any value between 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts or 10-30 parts) of suspending agents.

In some embodiments, the flash polished glaze is prepared from the following raw materials in parts by weight: 30 to 45 parts (specifically, any value between 30 parts, 31 parts, 32 parts, 33 parts, 34 parts, 35 parts, 36 parts, 37 parts, 38 parts, 39 parts, 40 parts, 41 parts, 42 parts, 43 parts, 44 parts, 45 parts or 30 to 45 parts) of potassium feldspar, 10 to 16 parts (specifically, any value between 10 parts, 10.5 parts, 11 parts, 11.5 parts, 12 parts, 12.5 parts, 13 parts, 13.5 parts, 14 parts, 14.5 parts, 15 parts, 15.5 parts, 16 parts or 10 to 16 parts) of quartz, 8 to 15 parts (specifically, any value between 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts, 10.5 parts, 11 parts, 11.5 parts, 12 parts, 12.5 parts, 13 parts, 13.5 parts, 14 parts, 14.5 parts, 15 parts or 8 parts) of calcite, specifically, any value between 5 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts, 11 parts, 11.5 parts, 11 parts, 12 parts, 12.5 parts, 13 parts, 13.5 parts, 14 parts, 14.5 parts, 15 parts or 8 parts of feldspar, 7 parts, 15 parts or 15 parts of red feldspar, 3 to 7 parts of transparent stone (specifically, any value of 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts or 3 to 7 parts), 5 to 10 parts of iron ore (specifically, any value of 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts or 5 to 10 parts), 5 to 8 parts of plant ash (specifically, any value of 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts or 5 to 8 parts), 3 to 6 parts of copper oxide (specifically, any value of 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts or 3 to 6 parts), and 2 parts of red iron powder (specifically, any value of 3.5 parts, 5.5 parts, 5 parts, 5.5 parts or 3 to 6 parts).

Preferably, the flash polished glaze comprises the following raw materials in parts by weight: 30-40 parts of potash feldspar, 10-15 parts of quartz, 8-12 parts of calcite, 9-15 parts of red feldspar, 5-7 parts of transparent stone, 5-10 parts of iron ore, 6-8 parts of plant ash, 4-6 parts of copper oxide and 3-5 parts of iron oxide red powder.

Preferably, the flash polished glaze comprises the following raw materials in parts by weight: 35-45 parts of potash feldspar, 12-16 parts of quartz, 10-15 parts of calcite, 5-7 parts of red feldspar, 3-6 parts of transparent stone, 5-10 parts of iron ore, 5-8 parts of plant ash, 3-5 parts of copper oxide and 2-4 parts of iron oxide red powder. Specifically, after detection, the chemical components of the glaze layer, calculated by mass percent, include: SiO 2₂ 55.23％～57.02％，Al₂O₃ 14.75％～16.08％，CaO 7.37％～8.61％，MgO 4.54％～5.75％，Na₂O3.54％～4.73％，K₂O 1.45％～2.61％，ZnO 2.42％～3.6％，Fe₂O₃ 3.27％～5.14％，CuO 2.85％～4.52％，TiO₂ 0.23％～0.35％。

The potassium feldspar and the red feldspar in the glaze material for the flash glaze polishing belong to feldspar raw materials, and are aluminosilicate minerals containing sodium and potassium elements, but in the feldspar of different types, the contained impurity elements are different, so that different colors can be shown, for example, the red feldspar possibly has high content of impurity Cu element, so that the red feldspar is red. In the firing process, feldspar can become vitreous glaze after being melted, and SiO can be introduced simultaneously₂、Al₂O₃、Na₂O、K₂O and other chemical components.

The main content of quartz is silicon dioxide, and the quartz can be fused with more oxides to generate transparent glass, so that the glaze surface is bright, the expansion coefficient of the glaze is reduced, and the glossiness of the glaze color is increased.

Calcite is a calcium carbonate mineral, and can increase the refractive index of glaze, increase the hardness, wear resistance and corrosion resistance of glaze layer, and improve the glossiness of glaze. The CaO formed after the sintering can be used as a high-temperature fluxing agent to promote the mutual diffusion of the components of the blank and the glaze, is beneficial to forming a good intermediate layer of the blank glaze and relieves the stress caused by the difference of expansion coefficients of the blank glaze.

The transparent stone is a raw material which is artificially processed, and the main component of the transparent stone is quartz stone liquid mineral SiO₂The crystalline product of (1). The transparent stone is added into the glaze, so that the transparency of the glaze layer can be increased, and compared with natural stone, the transparent stone is lighter in weight and lower in melting temperature.

Iron ore is an economically usable aggregate of minerals containing a simple substance of iron or an iron compound, is a large variety of materials, is an important raw material for forming a black glaze layer, and also contains trace elements such as manganese, nickel, chromium, vanadium, titanium and the like.

The plant ash is the residue of plant after burning, and after refining treatment, most of sodium, potassium and impurities are removed, so that the plant ash has fluxing action when used in glaze, and has certain suspension property on glaze slurry. The glaze also contains trace elements such as calcium, magnesium, phosphorus, iron, manganese, copper, zinc and the like, and has good color rendering effect on the glaze.

Copper oxide is generally used as a coloring agent in the glaze, and can be shown to be red after being fired, but because the glaze of the application contains iron ore, the definition of the color development of the glaze layer can be increased, and the color development effect of the black glaze layer is improved.

The iron oxide red powder as pigment can be used in coating, paint and printing ink, and has good resistance to dilute acid, alkali, water, solvent and weather. The glaze material is introduced in the form of a coloring agent like copper oxide, mainly plays a role of color-assisting, and the black glaze layer fired by iron red with bright red appearance has good saturation.

It should be noted that the gold particles used in the present application are flaky yellow particles, which are processed copper and iron sulfides, and the particle size of the particles is 60 to 200 meshes (specifically, any range of 60 to 100 meshes, 80 to 150 meshes, 100 to 200 meshes, 80 to 200 meshes, or 60 to 200 meshes), and the gold particles are purchased from shiitake precision ceramic technology (kunshan) limited company, and the specific trade name is Y60.

The raw materials of the flash glaze polishing in the embodiment of the application are purchased from Guangdong Sanshui Dahong glaze Co Ltd and Guangdong Dow technology GmbH Co, and the suspending agent in the embodiment of the application is purchased from Yidajia precision ceramics technology Co Ltd.

It is to be understood that the above description of the article is by way of example only and is not to be construed as limiting the use of the article of manufacture by the manufacturer.

The application also provides a preparation method of the black rock plate, which specifically comprises the following steps:

carrying out blank polishing treatment on the dried rock plate green blank conveyed from the drying kiln by using a blank polishing machine, removing dust on the surface of the green blank by using a dust suction device, and then carrying out water spraying treatment on the surface of the rock plate green blank by using a water spraying cabinet;

uniformly mixing the gold particles and the suspending agent according to a ratio to form a mixture, adding the mixture into flash glaze polishing, and continuously and uniformly mixing to obtain glaze polishing glaze slurry;

and (3) spreading glaze-throwing glaze slip on the surface of the rock plate green body subjected to water spraying treatment, and then sequentially drying and firing to obtain the black rock plate.

It should be noted that the rock plate green compact of the present application can be directly purchased as a finished rock plate green compact on the market, and can also be processed and produced autonomously by using related mineral raw materials. Specifically, the rock plate green body raw materials comprise the following components in parts by weight: 35-45 parts of potassium sand, 20-25 parts of medium temperature sand, 7-9 parts of quartz, 10-15 parts of mixed mud, 5-7 parts of black mud, 12-18 parts of white mud, 5-7 parts of talc, 0.25-0.35 part of water glass, 0.3-0.4 part of sodium tripolyphosphate and 40-50 parts of water. The raw materials are mixed according to a proportion, ground, screened by vibration and deironized to obtain the slurry. Wherein the specific gravity of the slurry is 1.7-1.9, the flow rate is 60-70 s, and the fineness is 0.6-0.9%. And then baking the slurry, spraying powder and granulating, wherein the grain size of the granules is 20-30 meshes. And then, performing blank making in a 900 x 1800 x 12mm die under the pressure of 55-60 MPa to obtain a rock plate green body.

In the glaze-polishing slip, if the gold particles and the flash glaze-polishing are directly mixed, agglomeration among the particles can be caused, the suspending agent can be used for ensuring that the metal particles do not precipitate and agglomerate, and the gold particles and the suspending agent are mixed and then added into the glaze-polishing slip, so that the glaze slip is not agglomerated and is easier to disperse uniformly.

In some embodiments, the polishing slip prepared by the method has a specific gravity of 1.8-1.9 (specifically, any value between 1.80, 1.81, 1.82, 1.83, 1.84, 1.85, 1.86, 1.87, 1.88, 1.89, 1.90 or 1.8-1.9), and a flow rate of 25-30 s (specifically, any value between 25s, 26s, 27s, 28s, 29s, 30s or 25-30 s). It should be noted that if the viscosity of the prepared glaze slip is higher and the flow rate is slower, a proper amount of water can be added for adjustment.

Before glaze-polishing glaze slip is applied, water needs to be sprayed on the surface of a rock plate green body, and the water spraying amount is 20-30 g/m²(specifically, it may be 20 g/m)²、21g/m²、22g/m²、23g/m²、24g/m²、25g/m²、26g/m²、27g/m²、28g/m²、29g/m²、30g/m²Or 20 to 30g/m²Any value in between). When applying the glaze slip, it is necessary to ensure that the temperature of the green rock plate is 80 to 90 ℃ (specifically, any value between 80 ℃, 81 ℃, 82 ℃, 83 ℃, 84 ℃, 85 ℃, 86 ℃, 87 ℃, 88 ℃, 89 ℃, 90 ℃ or 80 to 90 ℃). The water is sprayed on the surface of the green body, so that the defects that the water content of glaze slip is absorbed by the green body during subsequent glazing, the flowability of glaze is poor, and the glaze surface is uneven are mainly prevented. The temperature of the rock plate green body is controlled to ensure that water drops left on the surface can be quickly evaporated while the surface of the green body is wetted, so that the defects of bubbles, pinholes and the like in the subsequent glazing and firing process are prevented.

In some embodiments, the glaze-polishing slip is applied by spraying glaze in an amount of 800～1000g/m²(specifically, 800g/m may be mentioned²、810g/m²、820g/m²、850g/m²、880g/m²、900g/m²、910g/m²、950g/m²、1000g/m²Or 800 to 1000g/m²Any value in between). The thickness of the glaze layer applied by the method is 2.50-3.50 mm.

After the glaze-throwing glaze slip is applied to the rock plate green body, when drying treatment is needed, the temperature in the drying kiln is 135-155 ℃ (specifically any value between 135 ℃, 140 ℃, 145 ℃, 150 ℃, 155 ℃ or 135-155 ℃), and the drying time is 8-10 min (specifically any value between 8min, 9min, 10min or 8-10 min).

And feeding the dried rock plate into a firing kiln for firing, wherein the firing temperature is 1180-1200 ℃ (specifically any value between 1180 ℃, 1185 ℃, 1190 ℃, 1195 ℃, 1200 ℃ or 1180-1200 ℃), and the firing time is 80-90 min (specifically any value between 80min, 81min, 82min, 83min, 84min, 85min, 86min, 87min, 88min, 89min, 90min or 80-90 min).

And after the firing is finished, cooling the rock plate, polishing and grinding the glaze surface of the rock plate, and finally waxing by using black wax water to obtain the black rock plate.

Embodiments of the present invention will be described in detail below with reference to specific examples, but those skilled in the art will appreciate that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

Example 1

The embodiment provides a black rock plate, including throwing the glaze layer, the glaze slip of throwing the glaze layer includes according to parts by weight: 80 parts of flash polished glaze, 5 parts of gold particles and 10 parts of suspending agent. The flash glazing comprises the following raw materials in parts by weight: 30 parts of potassium feldspar, 10 parts of quartz, 8 parts of calcite, 9 parts of red feldspar, 5 parts of transparent stone, 5 parts of iron ore, 6 parts of plant ash, 4 parts of copper oxide and 3 parts of iron oxide red powder; the particle size of the gold particles is 60-100 meshes.

The specific preparation method of the black rock plate comprises the following steps:

throwing the dried rock plate green body conveyed from the drying kiln by a green body throwing machine, removing dust on the surface of the green body by using a dust suction device, and spraying water to the rock plate green body by using a water spraying cabinet, wherein the water spraying amount is 20g/m²；

Uniformly mixing 5 parts of gold particles and 10 parts of suspending agent to form a mixture, adding the mixture into 80 parts of flash glaze, and continuously uniformly mixing to obtain glaze-polished glaze slip, wherein water can be added to adjust the specific gravity of the glaze-polished glaze slip to 1.8, and the flow rate is 25 s;

when the glaze-polishing glaze slurry is applied, the temperature of a rock plate green body is ensured to be between 80 and 90 ℃, and then the prepared glaze-polishing glaze slurry is applied in a glaze pouring mode, wherein the application amount is 800g/m²And then drying in a kiln at 135 ℃ for 8min, then sending into a firing kiln, firing at 1180 ℃ for 90min, and after firing, cooling and polishing to obtain the black rock plate.

Example 2

The embodiment provides a black rock plate, including throwing the glaze layer, the glaze slip of throwing the glaze layer includes according to parts by weight: 90 parts of flash polished glaze, 8 parts of gold particles and 18 parts of suspending agent. The flash glazing comprises the following raw materials in parts by weight: 35 parts of potash feldspar, 12 parts of quartz, 12 parts of calcite, 7 parts of red feldspar, 6 parts of transparent stone, 7 parts of iron ore, 6 parts of plant ash, 3 parts of copper oxide and 2 parts of iron oxide red powder; the particle size of the gold particles is 80-150 meshes.

The specific preparation method of the black rock plate comprises the following steps:

throwing the dried rock plate green body conveyed from the drying kiln by a green body throwing machine, removing dust on the surface of the green body by using a dust suction device, and spraying water to the rock plate green body by using a water spraying cabinet, wherein the water spraying amount is 25g/m²；

Uniformly mixing 8 parts of gold particles and 18 parts of suspending agent to form a mixture, adding the mixture into 90 parts of flash glaze polishing, and continuously uniformly mixing to obtain glaze polishing glaze slurry, wherein water can be added to adjust the specific gravity of the glaze polishing glaze slurry to 1.85, and the flow rate is 30 s;

when the glaze-polishing slip is applied, the temperature of the rock plate green body is ensured to be between 80 and 90 ℃, and then the prepared glaze-polishing slip is applied in a glaze pouring mode, wherein the application amount is 900g/m²And then drying in a kiln at 140 ℃ for 9min, then sending into a firing kiln, firing for 85min at 1190 ℃, cooling and polishing after firing to obtain the black rock plate.

Example 3

The embodiment provides a black rock plate, including throwing the glaze layer, the glaze slip of throwing the glaze layer includes according to parts by weight: 100 parts of flash polished glaze, 10 parts of gold particles and 25 parts of suspending agent. The flash glazing comprises the following raw materials in parts by weight: 45 parts of potash feldspar, 16 parts of quartz, 10 parts of calcite, 7 parts of red feldspar, 3 parts of transparent stone, 5 parts of iron ore, 5 parts of plant ash, 5 parts of copper oxide and 4 parts of iron oxide red powder; the particle size of the gold particles is 100-200 meshes.

The specific preparation method of the black rock plate comprises the following steps:

throwing the dried rock plate green body conveyed from the drying kiln by a green body throwing machine, removing dust on the surface of the green body by using a dust suction device, and spraying water to the rock plate green body by using a water spraying cabinet, wherein the water spraying amount is 30g/m²；

Uniformly mixing 10 parts of gold particles and 25 parts of suspending agent to form a mixture, adding the mixture into 100 parts of flash glaze polishing, and continuously uniformly mixing to obtain glaze polishing glaze slurry, wherein water can be added to adjust the specific gravity of the glaze polishing glaze slurry to 1.9, and the flow rate is 25 s;

when the glaze-polishing slip is applied, the temperature of the rock plate green body is ensured to be between 80 and 90 ℃, and then the prepared glaze-polishing slip is applied in a glaze pouring mode, wherein the application amount is 1000g/m²And then drying in a kiln at 150 ℃ for 10min, then sending into a firing kiln, firing at 1200 ℃ for 90min, and after firing, cooling and polishing to obtain the black rock plate.

Example 4

The embodiment provides a black rock plate, including throwing the glaze layer, the glaze slip of throwing the glaze layer includes according to parts by weight: 100 parts of flash polished glaze, 15 parts of gold particles and 30 parts of suspending agent. The flash glazing comprises the following raw materials in parts by weight: 40 parts of potassium feldspar, 10 parts of quartz, 10 parts of calcite, 10 parts of red feldspar, 6 parts of transparent stone, 5 parts of iron ore, 8 parts of plant ash, 6 parts of copper oxide and 5 parts of iron oxide red powder; the particle size of the gold particles is 60-100 meshes.

The specific preparation method of the black rock plate comprises the following steps:

throwing the dried rock plate green body conveyed from the drying kiln by a green body throwing machine, removing dust on the surface of the green body by using a dust suction device, and spraying water to the rock plate green body by using a water spraying cabinet, wherein the water spraying amount is 30g/m²；

Uniformly mixing 15 parts of gold particles and 30 parts of suspending agent to form a mixture, adding the mixture into 100 parts of flash glaze polishing, and continuously uniformly mixing to obtain glaze polishing glaze slurry, wherein water can be added to adjust the specific gravity of the glaze polishing glaze slurry to 1.9, and the flow rate is 30 s;

when the glaze-polishing slip is applied, the temperature of the rock plate green body is ensured to be between 80 and 90 ℃, and then the prepared glaze-polishing slip is applied in a glaze pouring mode, wherein the application amount is 1000g/m²And then drying in a kiln at 155 ℃ for 10min, then sending into a firing kiln, keeping the temperature at 1200 ℃ for firing for 90min, and after firing, cooling and polishing to obtain the black rock plate.

Comparative example 1

The comparative example provides a black golden flower ceramic rock plate produced by using ink-jet printing, wherein a technique of overlaying overglaze and glaze polishing double layers is adopted, the technique is described in the patent application document CN 110423140A, and the specific preparation process comprises the following steps: and sequentially carrying out four procedures of applying overglaze, ink-jet printing of black golden flower patterns, roller printing of protective glaze, applying polishing glaze and the like on the surface of the treated rock plate green body, and then carrying out high-temperature sintering in a roller kiln, wherein the sintering temperature is 1200 ℃, and the sintering time is 52 min. And after the firing is finished, cooling and polishing to obtain the ceramic rock plate for producing the black golden flower by using ink-jet printing.

Product performance testing

Carrying out relevant performance tests on the examples 1-4 and the comparative example 1 respectively, wherein the detection standard of the glossiness is GB/T13891-2008; other fire-proof performance, water absorption, wear resistance and corrosion resistance adopt the test standard of GB/T4100-2015. The final test results are shown in the following table 1, and it can be seen that the black rock plate of the present application has a simple and convenient production process, only a layer of glaze is applied on the surface of the rock plate, and a double-layer glaze superposition technology for ink-jet printing of black golden flower is not required. The black rock plate is lower in production cost, the finally prepared rock plate is better in surface glossiness, the glaze layer can show a crystal texture similar to real stone, and the water absorption rate, the wear resistance and the corrosion resistance are high.

TABLE 1 results of testing the properties of rock plates of examples 1-4 and comparative example 1

Fig. 1 to 4 are photographs of black rock plate glaze finally fired in embodiments 1 to 4, and it is obvious that, under light irradiation, the glaze of the rock plate exhibits a high-brightness glittering effect, and the gold particles in the glaze layer exhibit a crystalline texture, as with the texture of natural stone, so that the decorative effect of black real stone is achieved. Furthermore, with the increase of the consumption of the gold particles, the crystal texture similar to the natural stone is more densely distributed on the surface of the glaze layer, which shows that the rock surface can present different decorative textures by adjusting the addition of the gold particles.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.