阅读说明：本技术 一种利用花岗岩制备硅酸锌结晶釉的方法 (Method for preparing zinc silicate crystal glaze by utilizing granite ) 是由 陈一丕 陈一川 陈一寸 于 2021-10-13 设计创作，主要内容包括：本发明涉及陶瓷制备技术领域,具体为一种利用花岗岩制备硅酸锌结晶釉的方法,所述硅酸锌结晶釉包括以下材料：花岗岩、高岭土、石英、石灰石、玻璃粉、碳酸钡、刚玉粉、钠长石、滑石粉、成核剂、晶核剂；所述制备方法包括以下步骤：将上述原料按重量份称取并混合,加入水和铝球进行球磨,将球磨后的釉料过130-150目筛,过筛后的釉料和坯体放入模具中采用干压法成型,施釉和成型一同完成,放在20-15℃的干燥室中进行干燥,最后进行烧成,即得到所述硅酸锌结晶釉。本发明方法制备的硅酸锌结晶釉机械强度好,晶花绚丽多彩且分散,同时不需要人工操作,采用价格较低的花岗石作为主要原料,进一步减少了生产成本。(The invention relates to the technical field of ceramic preparation, in particular to a method for preparing zinc silicate crystal glaze by utilizing granite, wherein the zinc silicate crystal glaze comprises the following materials: granite, kaolin, quartz, limestone, glass powder, barium carbonate, corundum powder, albite, talcum powder, nucleating agent and nucleating agent; the preparation method comprises the following steps: weighing and mixing the raw materials in parts by weight, adding water and aluminum balls for ball milling, sieving the ball-milled glaze with a sieve of 130-150 meshes, placing the sieved glaze and the blank into a mold for molding by a dry pressing method, completing glazing and molding together, drying in a drying chamber at 20-15 ℃, and finally sintering to obtain the zinc silicate crystal glaze. The zinc silicate crystal glaze prepared by the method has good mechanical strength, and the crystal flowers are gorgeous and colorful and are dispersed, meanwhile, manual operation is not needed, and granite with low price is used as a main raw material, so that the production cost is further reduced.)

1. The method for preparing the zinc silicate crystal glaze by utilizing granite is characterized by comprising the following materials in parts by weight: 18-24 parts of granite, 11-17 parts of kaolin, 6-10 parts of quartz, 3-6 parts of limestone, 14-18 parts of glass powder, 2-5 parts of barium carbonate, 5-8 parts of corundum powder, 6-9 parts of albite, 4-8 parts of talcum powder, 3-5 parts of nucleating agent and 3-7 parts of nucleating agent;

the preparation method comprises the following steps: weighing and mixing the raw materials in parts by weight, adding water and aluminum balls for ball milling, sieving the ball-milled glaze with a sieve of 130-150 meshes, placing the sieved glaze and the blank into a mold for molding by a dry pressing method, completing glazing and molding together, drying in a drying chamber at 20-15 ℃, and finally sintering to obtain the zinc silicate crystal glaze.

2. The method for preparing the zinc silicate crystal glaze by using granite according to claim 1, wherein the zinc silicate crystal glaze comprises the following materials in parts by weight: 21-22 parts of granite, 13-15 parts of kaolin, 7-9 parts of quartz, 3-6 parts of limestone, 15-17 parts of glass powder, 3-5 parts of barium carbonate, 5-7 parts of corundum powder, 7-9 parts of albite, 5-7 parts of talcum powder, 4-5 parts of nucleating agent and 4-6 parts of nucleating agent.

3. The method for preparing the zinc silicate crystal glaze by using granite according to claim 1, wherein the zinc silicate crystal glaze comprises the following materials in parts by weight: 21 parts of granite, 14 parts of kaolin, 8 parts of quartz, 5 parts of limestone, 16 parts of glass powder, 4 parts of barium carbonate, 6 parts of corundum powder, 8 parts of albite, 6 parts of talcum powder, 4 parts of nucleating agent and 5 parts of nucleating agent.

4. The method for preparing zinc silicate crystal glaze according to any one of claims 1 to 4, wherein the nucleating agent is zinc oxide and the nucleating agent is an organic phosphate.

5. The method for preparing the zinc silicate crystal glaze according to claim 4, wherein the organic phosphate is one or more of methyl phosphate, ethyl phosphate and phenyl phosphate.

6. The method for preparing zinc silicate crystal glaze according to claim 1, wherein the glazing amount is 1.2-1.8kg/m²。

7. The method for preparing the zinc silicate crystal glaze by using granite according to claim 1, wherein the water: raw materials: the weight ratio of the ball is 3: 2: 1.

8. the method for preparing the zinc silicate crystal glaze by using granite according to claim 1, wherein the firing schedule is as follows: heating to 1250 ℃ at the speed of 5 ℃/min, preserving heat for 30min, then slowly cooling to 1100 ℃, preserving heat for 45-60min, and naturally cooling to room temperature after heat preservation.

Technical Field

The invention relates to the technical field of ceramic preparation, in particular to a method for preparing zinc silicate crystal glaze by utilizing granite.

Background

Granite is a structural rock formed by the molten lava erupting from volcano under a certain pressure and rising to the surface of the earth crust, the magma is not sprayed out of the ground, but is slowly cooled and solidified in the ground, and the granite is a deep acidic igneous rock and belongs to magma rock. The granite comprises quartz, feldspar and mica as main components, wherein the feldspar content is 40-60%, the quartz content is 20-40%, and the color of the granite depends on the types and the quantity of the components. The granite is a rock with a full-crystalline structure, high-quality granite has fine and uniform grains, compact structure, high quartz content, bright feldspar luster, hard texture, acid and alkali resistance and good weather resistance, and is a good raw material for preparing glaze.

The zinc silicate crystal glaze has naturally transformed crystal forms, bright and colorful crystal flowers and good decorative effect. The prior patent CN103396166A adopts granite to prepare zinc silicate crystal glaze, and the crystal nucleus is artificially seeded to realize the positioned growth of the crystal, however, the method wastes more manpower and material resources, and meanwhile, the difference of manual operation can lead to the problem that the crystal form effect cannot be guaranteed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the method for preparing the zinc silicate crystal glaze by utilizing granite.

The purpose of the invention is realized by the following technical scheme:

a method for preparing zinc silicate crystal glaze by utilizing granite comprises the following materials in parts by weight: 18-24 parts of granite, 11-17 parts of kaolin, 6-10 parts of quartz, 3-6 parts of limestone, 14-18 parts of glass powder, 2-5 parts of barium carbonate, 5-8 parts of corundum powder, 6-9 parts of albite, 4-8 parts of talcum powder, 3-5 parts of nucleating agent and 3-7 parts of nucleating agent;

the preparation method comprises the following steps: weighing and mixing the raw materials in parts by weight, adding water and aluminum balls for ball milling, sieving the ball-milled glaze with a sieve of 130-150 meshes, placing the sieved glaze and the blank into a mold for molding by a dry pressing method, completing glazing and molding together, drying in a drying chamber at 20-15 ℃, and finally sintering to obtain the zinc silicate crystal glaze.

Further, the zinc silicate crystal glaze comprises the following materials in parts by weight: 21-22 parts of granite, 13-15 parts of kaolin, 7-9 parts of quartz, 3-6 parts of limestone, 15-17 parts of glass powder, 3-5 parts of barium carbonate, 5-7 parts of corundum powder, 7-9 parts of albite, 5-7 parts of talcum powder, 4-5 parts of nucleating agent and 4-6 parts of nucleating agent.

Further, the zinc silicate crystal glaze comprises the following materials in parts by weight: 21 parts of granite, 14 parts of kaolin, 8 parts of quartz, 5 parts of limestone, 16 parts of glass powder, 4 parts of barium carbonate, 6 parts of corundum powder, 8 parts of albite, 6 parts of talcum powder, 4 parts of nucleating agent and 5 parts of nucleating agent.

Further, the nucleating agent is zinc oxide, and the nucleating agent is organic phosphate.

Further, the organic phosphate is one or more of methyl phosphate, ethyl phosphate and phenyl phosphate.

Further, the glazing amount is 1.2-1.8kg/m²。

Further, the water: raw materials: the weight ratio of the ball is 3: 2: 1.

further, the firing schedule is as follows: heating to 1250 ℃ at the speed of 5 ℃/min, preserving heat for 30min, then slowly cooling to 1100 ℃, preserving heat for 45-60min, and naturally cooling to room temperature after heat preservation.

The invention has the beneficial effects that:

(1) the granite prepared by the invention has fine and uniform granite grains, compact structure, high quartz content, bright feldspar luster, hard texture, acid and alkali resistance and good weather resistance, can well improve the mechanical property of the glaze, has wide granite distribution, high yield and low cost, and can effectively reduce the manufacturing cost of the zinc silicate crystal glaze.

(2) The invention takes zinc oxide as a crystal nucleus agent, the crystallization performance is good, and the crystal flower is in a large fan-shaped pattern. Meanwhile, the zinc oxide is similar to a glaze crystallization phase structure, according to the lattice matching principle, if a nucleation substrate is similar to the crystallization phase structure and has a same lattice constant, the substrate can induce the formation of a new nucleus because a large number of ZnO particles exist in the glaze, surface molecules of the particles inevitably react with SiO2 in a glaze melt to generate willemite, and a heterogeneous nucleating agent meeting the lattice matching principle exists in the melt, so that the nucleating effect is achieved, the growth and dispersion of crystals are improved, and the organic phosphate is added as the nucleating agent in the invention, so that the crystal forming speed is accelerated, the forming period is shortened, and meanwhile, the transparency, the rigidity and the surface gloss of the crystals are improved.

(3) The invention controls the glazing amount to be 1.2-1.8kg/m²The glazing amount, namely the thickness of a glaze layer, influences the nucleation and growth of crystals and further influences the glaze effect and the glaze quality of a crystallized glaze product, and the glazing amount is controlled to be 1.2-1.8kg/m²In the process, the crystal patterns of the glaze surface are distributed uniformly, the crystal growth is complete, and the glaze surface is beautiful and smooth. Along with the increase of the glazing weight, the thickness of the glaze layer is increased, the crystallization number is increased, the glaze flow is serious, the thickness of the glaze layer of the sample is uneven, the color of the glaze is unstable, the chromatic aberration is large, crystal patterns develop in a three-dimensional direction, and the glaze is rough and dull.

(4) The glaze disclosed by the invention needs to pass through a sieve of 130-150 meshes, the particle size of zinc oxide is controlled, and the zinc oxide in the glaze is difficult to remain and cannot form crystal nuclei due to higher solubility and extreme instability, so that the position of the positioning seed crystal is highlighted, and the effect of positioning crystallization is achieved.

Detailed Description

The technical solution of the present invention is further described in detail with reference to the following specific examples, but the scope of the present invention is not limited to the following.

Example 1

A method for preparing zinc silicate crystal glaze by utilizing granite comprises the following steps: weighing and mixing 18 parts of granite, 11 parts of kaolin, 6 parts of quartz, 3 parts of limestone, 14 parts of glass powder, 2 parts of barium carbonate, 5 parts of corundum powder, 6 parts of albite, 4 parts of talcum powder, 3 parts of methyl phosphate and 3 parts of zinc oxide according to parts by weight, adding water and aluminum balls for ball milling, wherein the water in the ball milling process: raw materials: the weight ratio of the ball is 3: 2: 1, sieving the ball-milled glaze with a 130-mesh sieve, placing the sieved glaze and the blank into a mold, and molding by a dry pressing method, wherein the glazing amount is 1.2kg/m²Drying in a drying chamber at 15 ℃, finally sintering in a kiln, heating to 1250 ℃ at the speed of 5 ℃/min, preserving heat for 30min, then slowly cooling to 1100 ℃, preserving heat for 45min, and naturally cooling to room temperature after heat preservation, thus obtaining the zinc silicate crystal glaze.

Example 2

A method for preparing zinc silicate crystal glaze by utilizing granite comprises the following steps: weighing and mixing 21 parts of granite, 14 parts of kaolin, 8 parts of quartz, 5 parts of limestone, 16 parts of glass powder, 4 parts of barium carbonate, 6 parts of corundum powder, 8 parts of albite, 6 parts of talcum powder, 4 parts of ethyl phosphate and 5 parts of zinc oxide according to parts by weight, adding water and aluminum balls for ball milling, wherein the water in the ball milling process: raw materials: the weight ratio of the ball is 3: 2: 1, sieving the ball-milled glaze with a 140-mesh sieve, placing the sieved glaze and the blank into a mold, and molding by a dry pressing method, wherein the glazing amount is 1.5kg/m²Drying in a drying chamber at 17 ℃, finally sintering in a kiln, heating to 1250 ℃ at the speed of 5 ℃/min, preserving heat for 30min, then slowly cooling to 1100 ℃, preserving heat for 50min, and naturally cooling to room temperature after heat preservation to obtain the zinc silicate crystal glaze.

Example 3

A method for preparing zinc silicate crystal glaze by utilizing granite comprises the following steps: weighing and mixing 24 parts of granite, 17 parts of kaolin, 10 parts of quartz, 6 parts of limestone, 18 parts of glass powder, 5 parts of barium carbonate, 8 parts of corundum powder, 9 parts of albite, 8 parts of talcum powder, 5 parts of phenyl phosphate and 7 parts of zinc oxide according to parts by weight, adding water and aluminum balls for ball milling, wherein the water in the ball milling process is as follows: raw materials: the weight ratio of the ball is 3: 2: 1, sieving the ball-milled glaze with a 150-mesh sieve, placing the sieved glaze and the blank into a mold, and molding by a dry pressing method, wherein the glazing amount is 1.8kg/m²Drying in a drying chamber at 20 ℃, finally sintering in a kiln, heating to 1250 ℃ at the speed of 5 ℃/min, preserving heat for 30min, then slowly cooling to 1100 ℃, preserving heat for 60min, and naturally cooling to room temperature after heat preservation to obtain the zinc silicate crystal glaze.

Comparative example

The raw materials and preparation methods of this comparative example and example 2 were substantially the same, except that this comparative example did not contain zinc oxide.

By testing and observing the hardness and glaze effect of the zinc silicate crystal glaze prepared in examples 1 to 3 and comparative example, the following table 1 shows the results:

test results

TABLE 1

The hardness testing method comprises the following steps: QB/T4780 + 2015 Vickers hardness determination method of glaze of daily ceramic device;

from table 1 above, it can be seen that the data of example 2 are better, and are the best examples, and at the same time, it can be seen that zinc oxide has a larger influence on crystal orientation.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.