阅读说明：本技术 一种具有铁锈金花色釉钧瓷及其制备方法 (Jun porcelain with rust golden flower colored glaze and preparation method thereof ) 是由 张军召 于 2019-09-25 设计创作，主要内容包括：本发明公开一种具有铁锈金花色釉钧瓷,包括胎体和釉,所述釉由黑底釉和金点釉组成,所述黑底釉由以下重量份的原料制备而成：黄长石30-40份,白长石14-18份,滑石20-30份,草木灰10-12份,铁矿石3-5份,镁矿石6-8份,磷酸钙6-8份,青碱3-8份,高岭土2-5份,黑药5-8份,所述金点釉由以下重量份的原料制备而成：黄长石16-18份,钠长石6-8份,1-2份高岭土,1-1.5份碱石,1-2份滑石,石英0.8-1.2份,骨灰1.5-2份,铁矿石1.2-1.5份,兰粉1.2-1.8份。本发明还包括制备上述具有铁锈金花色釉钧瓷的方法,包括坯体制备步骤,釉料制备步骤,素胎上釉步骤和烧制步骤；本发明铁锈金花色釉钧瓷,填补了钧瓷黑釉系列空白,对于钧瓷的研发具有重要的科研价值。(The invention discloses a golden flower colored glaze jun porcelain with rust, which comprises a body and glaze, wherein the glaze consists of black ground glaze and gold dot glaze, and the black ground glaze is prepared from the following raw materials in parts by weight: 30-40 parts of melilite, 14-18 parts of white feldspar, 20-30 parts of talc, 10-12 parts of plant ash, 3-5 parts of iron ore, 6-8 parts of magnesium ore, 6-8 parts of calcium phosphate, 3-8 parts of sodium cyanine, 2-5 parts of kaolin and 5-8 parts of black powder, wherein the gold dot glaze is prepared from the following raw materials in parts by weight: 16-18 parts of melilite, 6-8 parts of albite, 1-2 parts of kaolin, 1-1.5 parts of alkali stone, 1-2 parts of talcum, 0.8-1.2 parts of quartz, 1.5-2 parts of bone ash, 1.2-1.5 parts of iron ore and 1.2-1.8 parts of blue powder. The invention also comprises a method for preparing the Jun porcelain with the rust golden flower colored glaze, which comprises a blank body preparation step, a glaze preparation step, a plain body glazing step and a firing step; the rust golden flower colored glaze jun porcelain fills the blank of a black glaze series of jun porcelain, and has important scientific research value for research and development of the jun porcelain.)

1. The Jun porcelain with the rust golden flower colored glaze is characterized in that: the glaze comprises a matrix and glaze, wherein the glaze consists of black ground glaze and gold dot glaze, and the black ground glaze is prepared from the following raw materials in parts by weight: 30-40 parts of melilite, 14-18 parts of white feldspar, 20-30 parts of talc, 10-12 parts of plant ash, 3-5 parts of iron ore, 6-8 parts of magnesium ore, 6-8 parts of calcium phosphate, 3-8 parts of sodium cyanine, 2-5 parts of kaolin and 5-8 parts of black powder, wherein the gold dot glaze is prepared from the following raw materials in parts by weight: 16-18 parts of melilite, 6-8 parts of albite, 1-2 parts of kaolin, 1-1.5 parts of alkali stone, 1-2 parts of talcum, 0.8-1.2 parts of quartz, 1.5-2 parts of bone ash, 1.2-1.5 parts of iron ore and 1.2-1.8 parts of blue powder.

2. The Jun porcelain with the rust golden flower color glaze as claimed in claim 1, wherein: the talc comprises talc raw materials and talc clinker, wherein the weight ratio of the talc raw materials to the talc clinker is 1: 2-2.5.

3. The Jun porcelain with the rust golden flower color glaze as claimed in claim 1, wherein: the blue powder is formed by firing cobalt oxide and Daqiong soil, and the mass ratio of the cobalt oxide to the Daqiong soil is 1: 6-8.

4. Method for preparing a Jun porcelain with rust golden flower colored glaze according to claim 1, characterized in that: the method comprises a blank body preparation step, a glaze material preparation step, a plain tire glazing step and a firing step;

step one, the preparation steps of the blank body are as follows: firstly, crushing 30 parts of kaolin, 15 parts of alkali stone, 5 parts of nodular clay and 4 parts of quartz sand, then putting the crushed materials into a ball mill for ball milling, adding water to enable the ratio of the powder to the water to be 1:1, stirring to obtain a mixture, grinding the mixture by using the ball mill, wet-milling for 6-8h until the fineness reaches 200 meshes, manually molding the obtained slurry to prepare a biscuit, standing and airing the biscuit, then putting the biscuit into a kiln, firing for 7-8h at 780-860 ℃, and cooling to normal temperature along with the kiln to obtain the fired biscuit for later use;

step two, the glaze preparation step comprises a black ground glaze preparation step and a gold dot glaze preparation step, wherein the black ground glaze preparation step comprises the following steps: grinding the weighed melilite, albite, talc, plant ash, iron ore, magnesium ore, calcium phosphate, green alkali, kaolin and black powder, putting the ground materials into a ball mill for ball milling, adding water to enable the mass concentration of glaze to reach 45-52%, wet milling for 5-8h, and enabling the fineness to reach 200 meshes to obtain slurry for later use; the preparation steps of the gold dot glaze material are as follows: adding water into the weighed melilite, albite, kaolin, alkali stone, talc, quartz, bone ash, iron ore and blue powder to enable the mass concentration of glaze to reach 48-56%, wet grinding for 10-13h to enable the fineness to reach 200 meshes, and obtaining slurry for later use;

step three, the step of glazing the biscuit comprises the following steps: (1) wiping and dedusting the plain blank obtained in the first step by using clean wet cloth, respectively and uniformly stirring the black ground glaze and the gold dot glaze obtained in the second step while wiping, wherein the stirring starts from the center of the slurry and gradually moves towards the outer circumference, and the stirring time is 30-50min, (2) placing the plain blank into the black ground glaze after the stirring is finished, dipping the outer surface of the plain blank to attach a ground glaze layer with the thickness of 3mm to the outer surface of the plain blank, and standing and airing for later use after the dipping is finished; (3) coating a gold point glaze material on the glazed blank obtained in the step (2) to finish secondary glazing, and airing for later use;

step four, the firing steps are as follows: placing the glazed blank obtained in the step three into a kiln, keeping a gap of 1-2cm slightly opened on a kiln door, starting ignition firing, raising the temperature in the kiln to 500-560 ℃ within 90min, then closing the kiln door, and keeping the temperature for 1-1.5 h; and (3) when the kiln temperature rises to 860 ℃, preserving heat for 2-3h, raising the kiln temperature to 1250 ℃, preserving heat for 3-5h, and cooling to obtain a finished product of the Jun porcelain.

5. The method for preparing a Jun porcelain with rust golden flower colored glaze according to claim 4, wherein the method comprises the following steps: in the fourth step, the temperature rising speed is 22-28 ℃/h.

6. The method for preparing a Jun porcelain with rust golden flower colored glaze according to claim 4, wherein the method comprises the following steps: in the fourth step, the temperature is 1250 ℃ to 900 ℃, the cooling speed is controlled to be 12 ℃ per minute, the temperature is controlled to be 900 ℃ to 614 ℃, the cooling speed is controlled to be 2-2.5 ℃ per minute, the temperature is controlled to be below 614 ℃ for rapid cooling, and the cooling speed is controlled to be 3-5 ℃ per minute.

Technical Field

The invention belongs to the technical field of ceramic preparation processes, and particularly relates to a Jun porcelain with rust golden flower colored glaze and a preparation method thereof.

Background

The Jun porcelain originates from east Han, is one of the five famous kiln porcelain in Song Dynasty, and is a treasure in the traditional porcelain making process of Han nationality, which is called national treasure and treasure. The porcelain is known as unique kiln transformation art, is vegetatively named as 'gold valuable jun non-valuable' and 'family is very popular, not as good as jun porcelain', and when the jun porcelain is manufactured, although the prior art has greatly progressed, the traditional sintering process of the jun porcelain comprises pre-sintering, oxidizing atmosphere sintering, reducing atmosphere sintering and final cooling process, the sintering process causes difficulty in sintering ideal jun porcelain products due to uncertain factors such as raw material factors, sintering temperature control and the like.

With the improvement of the technological level, on the basis of gradually solving the difficult problem of firing temperature control and the low qualification rate of finished products, new problems are faced, people are extremely pursuit of the shapes and colors of jun porcelain products, and on the basis of the existing jun porcelain process firing, the processes of firing novel colors and fancy glaze are explored, for example, the jun porcelain with the rusty golden flower colored glaze is provided, the appearance of the jun porcelain is like the point golden light dotted on a ironware, the appearance effect is attractive and elegant, the blank of the jun porcelain process product of the rusty golden flower colored glaze series is solved, and the jun porcelain process product has great reference significance and scientific research value for the development of new products of the jun porcelain process.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a sintering process of Jun porcelain with the rusted golden flower colored glaze.

In order to achieve the purpose, the invention adopts the following technical scheme: the Jun porcelain with the rust golden flower colored glaze comprises a body and glaze, wherein the glaze consists of black ground glaze and gold dot glaze, and the black ground glaze is prepared from the following raw materials in parts by weight: 30-40 parts of melilite, 14-18 parts of white feldspar, 20-30 parts of talc, 10-12 parts of plant ash, 3-5 parts of iron ore, 6-8 parts of magnesium ore, 6-8 parts of calcium phosphate, 3-8 parts of sodium cyanine, 2-5 parts of kaolin and 5-8 parts of black powder, wherein the gold dot glaze is prepared from the following raw materials in parts by weight: 16-18 parts of melilite, 6-8 parts of albite, 1-2 parts of kaolin, 1-1.5 parts of alkali stone, 1-2 parts of talcum, 0.8-1.2 parts of quartz, 1.5-2 parts of bone ash, 1.2-1.5 parts of iron ore and 1.2-1.8 parts of blue powder.

As a further improvement of the Jun porcelain with the rust golden flower colored glaze, the talc comprises talc raw materials and talc clinker, wherein the weight ratio of the talc raw materials to the talc clinker is 1: 2-2.5.

As a further improvement of the Jun porcelain with the rust golden flower colored glaze, the blue powder is formed by firing cobalt oxide and Daqiong soil, and the mass ratio of the cobalt oxide to the Daqiong soil is 1: 6-8.

The method for preparing the Jun porcelain with the rust golden flower colored glaze comprises a blank body preparation step, a glaze material preparation step, a plain body glazing step and a firing step;

step one, the preparation steps of the blank body are as follows: firstly, crushing 30 parts of kaolin, 15 parts of alkali stone, 5 parts of nodular clay and 4 parts of quartz sand, then putting the crushed materials into a ball mill for ball milling, adding water to enable the ratio of the powder to the water to be 1:1, stirring to obtain a mixture, grinding the mixture by using the ball mill, wet-milling for 6-8h until the fineness reaches 200 meshes, manually molding the obtained slurry to prepare a biscuit, standing and airing the biscuit, then putting the biscuit into a kiln, firing for 7-8h at 780-860 ℃, and cooling to normal temperature along with the kiln to obtain the fired biscuit for later use;

step two, the glaze preparation step comprises a black ground glaze preparation step and a gold dot glaze preparation step, wherein the black ground glaze preparation step comprises the following steps: grinding the weighed melilite, albite, talc, plant ash, iron ore, magnesium ore, calcium phosphate, green alkali, kaolin and black powder, putting the ground materials into a ball mill for ball milling, adding water to enable the mass concentration of glaze to reach 45-52%, wet milling for 5-8h, and enabling the fineness to reach 200 meshes to obtain slurry for later use; the preparation steps of the gold dot glaze material are as follows: adding water into the weighed melilite, albite, kaolin, alkali stone, talc, quartz, bone ash, iron ore and blue powder to enable the mass concentration of glaze to reach 48-56%, wet grinding for 10-13h to enable the fineness to reach 200 meshes, and obtaining slurry for later use;

step three, the step of glazing the biscuit comprises the following steps: (1) wiping and dedusting the plain blank obtained in the first step by using clean wet cloth, respectively and uniformly stirring the black ground glaze and the gold dot glaze obtained in the second step while wiping, wherein the stirring starts from the center of the slurry and gradually moves towards the outer circumference, and the stirring time is 30-50min, (2) placing the plain blank into the black ground glaze after the stirring is finished, dipping the outer surface of the plain blank to attach a ground glaze layer with the thickness of 3mm to the outer surface of the plain blank, and standing and airing for later use after the dipping is finished; (3) coating a gold point glaze material on the glazed blank obtained in the step (2) to finish secondary glazing, and airing for later use;

step four, the firing steps are as follows: placing the glazed blank obtained in the step three into a kiln, keeping a gap of 1-2cm slightly opened on a kiln door, starting ignition firing, raising the temperature in the kiln to 500-560 ℃ within 90min, then closing the kiln door, and keeping the temperature for 1-1.5 h; and (3) when the kiln temperature rises to 860 ℃, preserving heat for 2-3h, raising the kiln temperature to 1250 ℃, preserving heat for 3-5h, and cooling to obtain a finished product of the Jun porcelain.

According to the scheme, in the fourth step, the temperature rise speed is 22-28 ℃/h.

In the fourth step, the temperature is 1250 ℃ to 900 ℃, the cooling speed is controlled to be 12 ℃ per minute, the temperature is controlled to be 900 ℃ to 614 ℃, the cooling speed is controlled to be 2-2.5 ℃ per minute, and the cooling speed is controlled to be 3-5 ℃ per minute.

The technical scheme has the following beneficial effects:

firstly, the appearance of the Jun porcelain is stable and atmospheric, the glaze color is rich and smooth, natural and not rigid, the black glaze is improved on the basis of the black glaze Jun porcelain by improving the formula and the firing process, the black glaze is prepared to successfully furnace out golden light spots on the black glaze and present the effect of the Jun porcelain, and the preparation process formula fills the blank of the black glaze series of the Jun porcelain and has important scientific research value for the research and development of the Jun porcelain.

In the base glaze, iron and magnesium elements are used for coloring, and black, iron ore and magnesium ore are main coloring raw materials, so that the Jun porcelain glaze presents a black base glaze color, and calcium elements play a role in assisting melting, so that the melting point of the calcium phosphate glaze is reduced.

Thirdly, in the invention, a gradual step heating mode of back fire control is adopted, so that the Jun porcelain is subjected to furnace transmutation in a reducing atmosphere, and during cooling, cooling modes with different cooling speeds are adopted in different temperature stages, so that glaze cracking can be effectively prevented, and the obtained product has stable appearance quality and high yield.

Detailed Description

In order to make the technical means, the original characteristics, the achieved objects and the beneficial effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.