阅读说明：本技术 一种低温无铅翡翠绿釉的制作方法 (Method for manufacturing low-temperature lead-free green jade glaze ) 是由 王剑鹏 于 2020-12-25 设计创作，主要内容包括：本发明公开了一种低温无铅翡翠绿釉的制作方法,涉及低温无铅翡翠绿釉研发领域,本发明包括配方备料→制作熔块→按要求以一定配比配制成釉球磨→过筛吸铁→施釉于已高温素烧的坯上→釉烧→成品→进入下道工序。本发明开发一种氧化铜含量较高的无铅熔块A和一种有助于熔块A发色且共熔性好的无铅熔块B,通过熔块A、B使得本工艺的翡翠绿釉釉色亮翠通透、均匀光洁,随着本发明的不断完善,已实现了陶瓷酒瓶等的量化生产,质量较好,没有坯釉结合不良的情况,也没有翡翠绿釉常见的色泽不匀、光泽度不够、流釉、釉裂等情况发生,且因本发明的釉中不含铅等重金属,可广泛使用于陶瓷餐具、酒具、茶具等,可以满足现代人对美观、对健康的更高需求。(The invention discloses a method for manufacturing low-temperature lead-free green jade glaze, which relates to the field of research and development of low-temperature lead-free green jade glaze. The invention develops the lead-free frit A with higher copper oxide content and the lead-free frit B which is beneficial to color development of the frit A and has good eutectic property, the emerald green glaze color of the process is bright, transparent, uniform and smooth through the frit A, B, the quantitative production of ceramic wine bottles and the like is realized along with the continuous improvement of the invention, the quality is better, the condition of poor combination of blank glaze is avoided, the common conditions of uneven color, insufficient glossiness, flowing glaze, glaze crack and the like of the emerald green glaze are avoided, and the lead-free frit A does not contain heavy metals such as lead and the like in the glaze, can be widely used for ceramic tableware, wine sets, tea sets and the like, and can meet the higher requirements of modern people on beauty and health.)

1. A method for manufacturing low-temperature lead-free emerald green glaze comprises the steps of preparing materials according to a formula → manufacturing a frit → preparing glaze ball milling according to a certain proportion according to requirements → sieving iron absorption → applying glaze on a blank subjected to high-temperature biscuit firing → glaze firing → finished products → entering the next process, and is characterized in that:

step (1): preparing materials according to the following formula:

preparing a frit A according to the following formula in parts by weight: SiO2 is 49.0-49.9; al2O3 is 7.1-8.0; K2O is 2.1-2.9; na2O is 2.1-2.9; CaO is 6.0 to 7.0; BaO is 2.0-3.0; ZnO is 2.0-3.0; B2O3 is 5.1-6.0; CuO is 20.1-21.0;

preparing a frit B according to the following formula in parts by weight: SiO2 is 53.1-54.0; al2O3 is 9.0-10.0; K2O is 4.1-5.0; na2O is 2.1-3.0; CaO is 12.1 to 13.0; SrO is 5.1-6.0; li2O is 2.1-2.9; B2O3 is 9.1-10.0;

preparing the jadeite green glaze according to the following formula in parts by weight: 5-25% of A frit; 67-87% of frit B; 8 percent of kaolin (trace of other coloring agents can be added to adjust the color from bright to green);

step (2): preparing a frit: grinding the frit ingredients, firing at 1250 ℃ to form a liquid state, slowly pouring the liquid state into a circulating cold water pool for quenching to obtain a frit for standby A, B;

and (3): preparing glaze ball milling according to a certain proportion: selecting materials, namely balls, water which is 1:1.8:0.8, and sieving the balls with a 250-mesh sieve to obtain 0.01-0.05 percent of residue;

and (4): sieving and sucking iron: putting the frit crushed material and the glaze sieved by ball milling into a ball mill, and then removing iron by a 150-mesh iron removal sieve, wherein the screen residue is less than 0.5%, and then adjusting into slurry with the concentration of 68-72 Baume degrees;

and (5): glazing on the biscuit which is biscuit fired at high temperature: glazing the inner surface of the blank by adopting a glazing or glaze spraying method;

and (6): glaze firing: and (3) firing the mixture in a roller kiln at 1060-1080 ℃ in an oxidizing atmosphere to obtain a finished product, and then entering the finished product into the next procedure.

2. The method for manufacturing a low-temperature lead-free emerald green glaze according to claim 1, wherein the method comprises the following steps: and (5) controlling the glazing thickness to be between 0.7mm and 1.0 mm.

3. The method for manufacturing a low-temperature lead-free emerald green glaze according to claim 1, wherein the method comprises the following steps: the firing time in the step (6) is set according to the actual conditions of the blank and the kiln, and the rapid firing (less than 4 hours) can be realized.

Technical Field

The invention relates to the field of research and development of low-temperature lead-free green jade glaze, in particular to a method for manufacturing low-temperature lead-free green jade glaze.

Background

The jadeite green glaze is a traditional famous and precious colored glaze in China, is obtained by firing copper oxide serving as a coloring agent in an oxidizing atmosphere, is a general name, the quality of products produced in each period of each production place is uneven, and the main standard of the quality naturally depends on the brightness and the emerald degree of the glaze color of the products and the smoothness and the clearness of the glaze surface.

However, the color of copper oxide in glaze water is easily affected by other raw materials, and the prepared glaze with medium and high temperature (1120-1350 ℃) has poor color and luster, and the prepared glaze with low temperature (1000-1120 ℃) is difficult to be smooth and clean, so that the emerald green glaze is difficult to obtain satisfactory effect, and is more difficult to be produced in batch.

Disclosure of Invention

The invention aims to: in order to solve the problems that the glaze surface is difficult to be smooth and hard to be produced in batch, a manufacturing method of low-temperature lead-free emerald green glaze is provided.

In order to achieve the purpose, the invention provides the following technical scheme: a method for manufacturing low-temperature lead-free emerald green glaze comprises the following steps of preparing materials according to a formula → manufacturing a frit → preparing a glaze ball mill according to a certain proportion according to requirements → sieving iron absorption → applying glaze on a blank subjected to high-temperature biscuit firing → glaze firing → a finished product → entering the next working procedure:

step (1): preparing materials according to the following formula:

preparing a frit A according to the following formula in parts by weight: SiO2 is 49.0-49.9; al2O3 is 7.1-8.0; K2O is 2.1-2.9; na2O is 2.1-2.9; CaO is 6.0 to 7.0; BaO is 2.0-3.0; ZnO is 2.0-3.0; B2O3 is 5.1-6.0; CuO is 20.1-21.0;

preparing a frit B according to the following formula in parts by weight: SiO2 is 53.1-54.0; al2O3 is 9.0-10.0; K2O is 4.1-5.0; na2O is 2.1-3.0; CaO is 12.1 to 13.0; SrO is 5.1-6.0; li2O is 2.1-2.9; B2O3 is 9.1-10.0;

preparing the jadeite green glaze according to the following formula in parts by weight: 5-25% of A frit; 67-87% of frit B; 8 percent of kaolin (trace of other coloring agents can be added to adjust the color from bright to green);

step (2): preparing a frit: grinding the frit ingredients, firing at 1250 ℃ to form a liquid state, slowly pouring the liquid state into a circulating cold water pool for quenching to obtain a frit for standby A, B;

and (3): preparing glaze ball milling according to a certain proportion: selecting materials, namely balls, water which is 1:1.8:0.8, and sieving the balls with a 250-mesh sieve to obtain 0.01-0.05 percent of residue;

and (4): sieving and sucking iron: putting the frit crushed material and the glaze sieved by ball milling into a ball mill, and then removing iron by a 150-mesh iron removal sieve, wherein the screen residue is less than 0.5 percent, and then adjusting into slurry with the concentration of 68-72 Baume degrees;

and (5): glazing on the biscuit which is biscuit fired at high temperature: glazing the inner surface of the blank by adopting a glazing or glaze spraying method;

and (6): glaze firing: and (3) firing the mixture in a roller kiln at 1060-1080 ℃ in an oxidizing atmosphere to obtain a finished product, and then entering the finished product into the next procedure.

Preferably, the thickness of the glaze in the step (5) is controlled between 0.7mm and 1.0 mm.

Preferably, the firing time in the step (6) is set according to the actual conditions of the blank and the kiln, and the firing can be carried out quickly (less than 4 hours).

Compared with the prior art, the invention has the beneficial effects that: the invention develops the lead-free frit A with higher copper oxide content and the lead-free frit B which is beneficial to color development of the frit A and has good eutectic property, the emerald green glaze color of the process is bright, transparent, uniform and smooth through the frit A, B, the quantitative production of ceramic wine bottles and the like is realized along with the continuous improvement of the invention, the quality is better, the condition of poor combination of blank glaze is avoided, the common conditions of uneven color, insufficient glossiness, flowing glaze, glaze crack and the like of the emerald green glaze are avoided, and the glaze of the invention does not contain heavy metals such as lead and the like, can be widely used for ceramic tableware, wine sets, tea sets and the like, has wide market prospect, and can meet the higher requirements of modern people on beauty and health.

Detailed Description

Example (b):

a method for manufacturing low-temperature lead-free emerald green glaze comprises the following steps of preparing materials according to a formula → manufacturing a frit → preparing a glaze ball mill according to a certain proportion according to requirements → sieving iron absorption → applying glaze on a blank subjected to high-temperature biscuit firing → glaze firing → a finished product → entering the next working procedure:

step (1): preparing materials according to the following formula:

preparing a frit A according to the following formula in parts by weight: SiO2 is 49.0-49.9; al2O3 is 7.1-8.0; K2O is 2.1-2.9; na2O is 2.1-2.9; CaO is 6.0 to 7.0; BaO is 2.0-3.0; ZnO is 2.0-3.0; B2O3 is 5.1-6.0; CuO is 20.1-21.0;

preparing a frit B according to the following formula in parts by weight: SiO2 is 53.1-54.0; al2O3 is 9.0-10.0; K2O is 4.1-5.0; na2O is 2.1-3.0; CaO is 12.1 to 13.0; SrO is 5.1-6.0; li2O is 2.1-2.9; B2O3 is 9.1-10.0;

preparing the jadeite green glaze according to the following formula in parts by weight: 5-25% of A frit; 67-87% of frit B; 8 percent of kaolin (trace of other coloring agents can be added to adjust the color from bright to green);

step (2): preparing a frit: grinding the frit ingredients, firing at 1250 ℃ to form a liquid state, slowly pouring the liquid state into a circulating cold water pool for quenching to obtain a frit for standby A, B;

and (3): preparing glaze ball milling according to a certain proportion: selecting materials, namely balls, water which is 1:1.8:0.8, and sieving the balls with a 250-mesh sieve to obtain 0.01-0.05 percent of residue;

and (4): sieving and sucking iron: putting the frit crushed material and the glaze sieved by ball milling into a ball mill, and then removing iron by a 150-mesh iron removal sieve, wherein the screen residue is less than 0.5 percent, and then adjusting into slurry with the concentration of 68-72 Baume degrees;

and (5): glazing on the biscuit which is biscuit fired at high temperature: glazing the inner surface of the blank by adopting a glazing or glaze spraying method;

and (6): glaze firing: and (3) firing the mixture in a roller kiln at 1060-1080 ℃ in an oxidizing atmosphere to obtain a finished product, and then entering the finished product into the next procedure.

In the invention, the glazing thickness in the step (5) is controlled to be between 0.7mm and 1.0 mm.

In the invention, the firing time in the step (6) is set according to the actual conditions of the blank and the kiln, and the firing can be carried out quickly (less than 4 hours).

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.