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Preparation method for ceramic adopting high-temperature biscuit glaze pouring mode

A kind of production method, the technology of china

Active Publication Date: 2016-07-27
SHENZHEN YONGFENGYUAN PORCELAIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the intense reaction of the green body in the high temperature stage of this process, a large amount of gas is generated to damage the glaze surface, resulting in a large number of pinholes and glaze bubble defects on the glaze surface, which affects product quality.

Method used

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  • Preparation method for ceramic adopting high-temperature biscuit glaze pouring mode

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The specific production process route of glazed ceramics by using high-temperature bisque glazing method is as follows: figure 1 As shown, the blank is firstly made, and the product is formed to obtain a ceramic mud body, and the ceramic mud body is bisque-fired to obtain a high-temperature green body with a water absorption rate of less than 5%; at the same time, the glaze slurry is made to obtain a finished glaze slurry; then The glaze is applied to the surface of the biscuit by means of bell jar glazing, and then low-temperature glaze firing is carried out. The temperature of the glaze firing is 50-250°C lower than that of the biscuit firing to obtain a finished product.

[0040] The following is the production of hard porcelain 305*260mm fish dish, including the following steps:

[0041] Step S1: high-temperature biscuit fabrication. The prepared mud material is pressed into shape to make a mud billet in the shape of a 305*260mm fish dish. The clay body was fired ...

Embodiment 2

[0047] Carry out the making of magnesia reinforced porcelain 270mm flat plate according to the technological process in embodiment 1, comprise the following steps:

[0048] Step S1: high-temperature biscuit fabrication. The prepared mud is pressed into shape to make a mud billet in the shape of a 270mm flat disk. The mud body was fired at a high temperature of 1280°C for 8.0 hours, and the body was sintered into porcelain. At this time, the water absorption of the green body is less than 1%.

[0049] Step S2: making glaze slurry. Put the raw materials for glaze into the ball mill according to the proportion of the formula, and ball mill for 28 hours, then mill and sieve, adjust the specific gravity of the glaze slurry to 1.68g / ml by adding water and additives, and the flow rate is 22s / 100ml, and then pour the prepared hard porcelain The glaze passes through the bell jar glazer to form a uniform glaze curtain.

[0050] Step S3: glaze the bell jar. Put the 270mm flat plate ...

Embodiment 3

[0054] Carry out the making of bone china 200mm flat dish according to the technological process in embodiment 1, comprise the following steps:

[0055] Step S1: high-temperature biscuit fabrication. The prepared mud is pressed into shape to make a mud billet in the shape of a 200mm flat disk. The clay body was fired at 1260°C for 12 hours, and the body was sintered into porcelain. At this time, the water absorption of the green body is less than 1%.

[0056] Step S2: making glaze slurry. Put the raw materials for glaze into the ball mill according to the proportion of the formula and ball mill for 28 hours, then mill and sieve, adjust the specific gravity of the glaze slurry to 1.71g / ml by adding water and additives, and the flow rate is 15s / 100ml, and then pour the prepared hard porcelain The glaze passes through the bell jar glazer to form a uniform glaze curtain.

[0057] Step S3: glaze the bell jar. Put the 200mm flat plate with the bottom up on the bottom support th...

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Abstract

The invention provides a preparation method for ceramic adopting a high-temperature biscuit glaze pouring mode. The preparation method comprises the following steps of: firstly, biscuiting ceramic paste to obtain biscuit with water absorption smaller than 5%; and then, pouring glaze on the surface of the ceramic paste by adopting a bell glaze pouring mode, and carrying out glaze firing, wherein the glaze firing temperature is lower than the biscuit firing temperature by 50-250 DEG C. According to the technical scheme adopted by the invention, the prepared ceramic product is good in regularity, and defects such as glaze pin holes, glaze bubbles are greatly reduced, the glaze is uniform, the quality is excellent, and the product quality and the stability are improved.

Description

technical field [0001] The invention belongs to the technical field of ceramic production, and in particular relates to a method for making glazed ceramics by adopting a high-temperature biscuit glazing method. Background technique [0002] Ceramic production has a history of thousands of years, and ceramics are also an important symbol of the development of Chinese civilization. The international and domestic ceramic production techniques have been continuously improved and enriched following the development of the times and science and technology. With the development of technology, the glazing process has appeared and been utilized. But so far, the glazing process is only used in architectural ceramics, that is, it can only be widely used in ceramic wall and floor tiles with smooth surfaces. For daily-use porcelain with a certain unevenness and curvature on the surface, the glazing technology is basically impossible to achieve. In recent years, through technological imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/14C04B41/86C04B33/24C04B35/622
CPCC03C8/14C04B33/24C04B35/622C04B41/5022C04B41/86
Inventor 孟瑞飞刘权辉
Owner SHENZHEN YONGFENGYUAN PORCELAIN
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