阅读说明：本技术 一种粉色圆形结晶釉及其应用方法 (Pink round crystalline glaze and application method thereof ) 是由 汪鹏 卢希龙 曹春娥 陈云霞 张旭 于 2019-12-17 设计创作，主要内容包括：本发明公开一种粉色圆形结晶釉,其特征在于：采用天然矿物原料及工业化工原料,其重量百分比组成为：霞石正长岩40～50%、玻璃粉17～25%、釉灰1～5%、氧化锌26～31%、氧化铒4～10%、羧甲基纤维素钠0.2～0.3％,余量为石英,经配料、球磨、过筛、搅拌工序获得粉色圆形结晶釉料。本发明重新设计了新的结晶釉配方和生产工艺参数,通过对结晶动力学和着色机理的研究,严格控制了特定温度下晶核的成核速率和晶体的生长速率,控制了晶花的形状和颜色,最终实现圆形粉色结晶釉的艺术效果,并且所用原料大部分为天然矿物原料,不但来源丰富价格低廉,而且对人体无任何副作用,因此具有广阔的市场空间。(The invention discloses pink circular crystal glaze which is characterized in that: adopts natural mineral raw materials and industrial chemical raw materials, and comprises the following components in percentage by weight: 40-50% of nepheline syenite, 17-25% of glass powder, 1-5% of glaze ash, 26-31% of zinc oxide, 4-10% of erbium oxide, 0.2-0.3% of sodium carboxymethylcellulose and the balance of quartz, and the pink circular crystalline glaze is obtained through the working procedures of batching, ball milling, sieving and stirring. The invention redesigns a new crystal glaze formula and production process parameters, strictly controls the nucleation rate of crystal nuclei and the growth rate of crystals at a specific temperature through the research on the crystallization kinetics and the coloring mechanism, controls the shape and the color of crystal flowers, and finally realizes the artistic effect of the circular pink crystal glaze.)

1. A pink round crystalline glaze is characterized in that: adopts natural mineral raw materials and industrial chemical raw materials, and comprises the following components in percentage by weight: 40-50% of nepheline syenite, 17-25% of glass powder, 1-5% of glaze ash, 26-31% of zinc oxide, 4-10% of erbium oxide, 0.2-0.3% of sodium carboxymethylcellulose and the balance of quartz, and the pink circular crystalline glaze is obtained through the working procedures of batching, ball milling, sieving and stirring.

2. A crystalline glaze according to claim 1, wherein: the ball milling process comprises the following steps: firstly, putting glass powder into a rapid mill, ball-milling for 8-12 min, sieving the ball-milled glass powder with a 200-mesh sieve, putting zinc oxide into the rapid mill, ball-milling for 2-5 min, and sieving the ball-milled zinc oxide with a 100-mesh sieve; then mixing other raw materials with the ball-milled glass powder and zinc oxide, uniformly stirring, and then putting into a ball milling tank to mix: ball: the mass ratio of water is 0.5-1: 2-3: 1-2, performing ball milling for 8-12 min at a rotation speed of 500-600 r/min.

3. A crystalline glaze according to claim 2, wherein: the screening process comprises the following steps: and (4) sieving the glaze slip obtained after the ball milling process with a 100-mesh sieve.

4. A crystalline glaze according to claim 3 wherein: the stirring process comprises the following steps: and fully stirring the glaze slurry after the sieving process for 10-20 min, and keeping the water content of the slurry at 60-70% to finally obtain the finished glaze.

5. The method of applying a crystalline glaze according to claim 4, wherein: and applying the glaze product obtained in the stirring process on the surface of the porcelain clay blank, drying and then firing at a high temperature of 1330 ℃ for 12 h.

6. The method of application according to claim 5, characterized in that: the high-temperature firing system comprises the following steps: in an oxidizing atmosphere, the temperature of the kiln is increased from room temperature to 600 ℃ at a speed of 5 ℃/min, from 600 ℃ to 750 ℃ at a speed of 2.5 ℃/min, and from 750 ℃ to 1000 ℃ at a speed of 4.8 ℃/min, so that the compounds in the glaze can be fully reacted; the kiln atmosphere is changed into reducing atmosphere from 1000 ℃, the temperature is increased from 1000 ℃ to 1180 ℃ at the speed of 1.5 ℃/min, the temperature is increased from 1180 ℃ to 1330 ℃ at the speed of 2 ℃/min, and the temperature is kept for 60min after reaching 1330 ℃; then opening the kiln door, rapidly cooling to 1160 ℃, preserving the temperature for 180min at 1160 ℃, and finally naturally cooling to room temperature.

7. The method of application according to claim 5, characterized in that: the thickness of the finished glaze applied on the surface of the porcelain clay blank is 1.5-2.5 mm.

Technical Field

The invention belongs to the field of inorganic non-metallic materials (ceramics), and particularly relates to pink circular crystalline glaze and an application method thereof.

Background

The crystallized glaze is an artistic glaze with gorgeous colors and unique style. The crystal form of the porcelain is changed into a natural crystal form, the crystal flower is gorgeous and rich, the special artistic effect can be achieved by combining with the colored glaze, the porcelain can be used for decorating products such as porcelain, fine pottery, enamel and the like, and the porcelain is derived from ancient colored glaze in China, such as rare colored glaze such as 'tea dust', 'sesame dot', 'iron rust flower' and the like in Song dynasty. The zinc silicate crystal glaze and titanium silicate crystal glaze developed up to now are various crystal glazes such as zinc silicate crystal glaze and titanium silicate crystal glaze, and the zinc silicate crystal glaze takes ZnO as a crystallizing agent, and is more and more popular with people due to the characteristics of good crystallization performance, large fan-shaped grain pattern and the like. The crystal nucleus of the zinc silicate crystal glaze is basically the same as the crystal nucleus of the common crystal glaze, and the crystal nucleus is formed by adding a crystal nucleus agent into a glaze melt under the supersaturation condition in the cooling process. The crystal nuclei are the basis for crystal growth to form crystal flowers, but the number and the distribution of the crystals are free, and the crystals have contingency and variability, and the defects of overlapping among the crystal flowers or incomplete growth of the shape of the crystal flowers can also occur, so that the pink circular crystal glaze cannot be industrialized.

Disclosure of Invention

The invention aims to solve the technical problem of providing pink circular crystal glaze with simple preparation process, low cost and unique artistic effect and an application method thereof.

The invention is realized by the following technical scheme: a pink round crystalline glaze is characterized in that: adopts natural mineral raw materials and industrial chemical raw materials, and comprises the following components in percentage by weight: 40-50% of nepheline syenite, 17-25% of glass powder, 1-5% of glaze ash, 26-31% of zinc oxide, 4-10% of erbium oxide, 0.2-0.3% of sodium carboxymethylcellulose and the balance of quartz, and the pink circular crystalline glaze is obtained through the working procedures of batching, ball milling, sieving and stirring.

The ball milling process comprises the following steps: firstly, putting glass powder into a rapid mill, ball-milling for 8-12 min, sieving the ball-milled glass powder with a 200-mesh sieve, putting zinc oxide into the rapid mill, ball-milling for 2-5 min, and sieving the ball-milled zinc oxide with a 100-mesh sieve; then mixing other raw materials with the ball-milled glass powder and zinc oxide, uniformly stirring, and then putting into a ball milling tank to mix: ball: the mass ratio of water is 0.5-1: 2-3: 1-2, performing ball milling for 8-12 min at a rotation speed of 500-600 r/min.

The screening process comprises the following steps: and (4) sieving the glaze slip obtained after the ball milling process with a 100-mesh sieve.

The stirring process comprises the following steps: and fully stirring the glaze slurry after the sieving process for 10-20 min, and keeping the water content of the slurry at 60-70% to finally obtain the finished glaze.

The application method of the crystalline glaze is characterized in that: and applying the glaze product obtained in the stirring process on the surface of the porcelain clay blank, drying and then firing at a high temperature of 1330 ℃ for 12 h.

The high-temperature firing system comprises the following steps: in an oxidizing atmosphere, the temperature of the kiln is increased from room temperature to 600 ℃ at a speed of 5 ℃/min, from 600 ℃ to 750 ℃ at a speed of 2.5 ℃/min, and from 750 ℃ to 1000 ℃ at a speed of 4.8 ℃/min, so that the compounds in the glaze can be fully reacted; the kiln atmosphere is changed into reducing atmosphere from 1000 ℃, the temperature is increased from 1000 ℃ to 1180 ℃ at the speed of 1.5 ℃/min, the temperature is increased from 1180 ℃ to 1330 ℃ at the speed of 2 ℃/min, and the temperature is kept for 60min after reaching 1330 ℃; then opening the kiln door, rapidly cooling to 1160 ℃, preserving the temperature for 180min at 1160 ℃, and finally naturally cooling to room temperature.

The thickness of the finished glaze applied on the surface of the porcelain clay blank is 1.5-2.5 mm.

The invention redesigns a new crystal glaze formula and production process parameters, strictly controls the nucleation rate of crystal nuclei and the growth rate of crystals at a specific temperature through the research on the crystallization kinetics and the coloring mechanism, controls the shape and the color of crystal flowers, and finally realizes the artistic effect of the circular pink crystal glaze.

Detailed Description

To further illustrate the present invention and the technical means and effects thereof adopted to achieve the predetermined object, the present invention will be described in detail with reference to the preferred embodiments as follows: