Medium and low temperature fine porcelain and its preparing method

A fine porcelain, low temperature technology, applied in the field of medium and low temperature fine porcelain and its preparation, can solve the problems of fine porcelain glaze, narrow pigment range, difficult coloring, limited application, etc., and achieves wide processing methods, bright and uniform colors, and pigment selection wide range of effects

Inactive Publication Date: 2005-05-18
景德镇景德陶瓷集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the existing sericite china stone-kaolin two-component formula, R 2 The range of O and RO has been controlled at 4.5-7%. The firing temperature of such a formula is above 1250°C. High firing temperature means more energy consumption, and the range of fine enamel and pigments to choose is narrow, except for a few For blue and white underglaze colors, when most of the pigments are fired at 1250°C for sericite porcelain stones - fine porcelain with a two-component kaolin formula, it is difficult to color or unstable at high temperatures, which limits sericite porcelain stones - Application of Fine Porcelain with Kaolin Two-component Formula

Method used

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  • Medium and low temperature fine porcelain and its preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] For the preparation of low-temperature color-bodied fine porcelain in lemon yellow bodied porcelain, the mass percentage of the chemical composition of the mud is as follows:

[0024]

SIOs 2

AL 2 o 3

K 2 o

Na 2 o

CaO

MgO

Fe 2 o 3

IL

∑

Plus praseodymium zirconium yellow material

Zr-Si-Pr

63.13

22.16

2.47

1.14

1.88

1.93

0.39

8.5

101.6

4％

[0025] Blank type:

[0026]

[0027] Transparent glaze chemical composition mass percentage

[0028]

SiO 2

Al 2 o 3

Fe 2 o 3

K 2 o

Na 2 o

CaO

MgO

ZnO

BaO

∑

49

7.08

0.1

2.57

0.43

8.72

2.57

5.71

6.66

100

[00...

Embodiment 2

[0032] For the preparation of low-temperature color-bodied fine porcelain in light red bodied porcelain, the mass percentage of the chemical composition of the mud is as follows:

[0033] SiO 2

al 2 o 3

Fe 2 o 3

K 2 o

Na 2 o

CaO

MgO

IL

∑

Additional coloring

Zr-Si-Cd-

Se-S

62.48

21.2

0.386

2.46

1.16

2.98

1.94

8.6

101.2

1％

[0034] Blank type:

[0035] The mass percent of the transparent glaze chemical composition, the glaze formula, and the steps of the technological process are the same as those in Example 1. The obtained products passed the inspection by the National Daily-Use Fine Porcelain Supervision and Inspection Center. The inspection report is attached.

[0036] Test items

Embodiment 3

[0038] A kind of medium and low temperature fine porcelain, the raw material is composed of base material, alkali metal compound and alkaline earth metal compound, the binary basic components in the base material are porcelain stone and kaolin, and the molecular formula of porcelain stone as the main component is K 2 O3Al 2 o 3 6SiO 2 2H 2 Sericite porcelain stone of O, the three main oxides in the raw material are SiO 2 ;Al 2 o 3 ; 2 O and RO, where R 2 is an alkali metal element, R is an alkaline earth metal element, and the percentages of the total weight of the raw materials are SiO 2 50-70%, Al 2 o 3 20-30%, R 2 O and RO total 7.3-12%.

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Abstract

The present invention relates to medium and low temperature fine porcelain and its preparation process, and especially a kind of medium and low temperature fine porcelain of high alkali metal element and alkali earth metal element content and with relatively lower sintering temperature and its preparation process. The base material has two basic components of sericite china stone and kaolin, and includes three main kinds of oxides, SiO2 50-70 wt%, Al2O3 20-30 wt% and R2O+RO 7.3-12 wt%, where R2 and R are alkali metal element and alkali earth metal element separately. The very large amount of alkali metal element and alkali earth metal element results in the sintering temperature lowered to 1150-1230 deg.c, saving in energy, great color selecting range and flexible processing mode.

Description

technical field [0001] The invention relates to a medium-low temperature fine porcelain and a preparation method thereof, in particular to a medium-low temperature fine porcelain with relatively high alkali metal elements and alkaline earth metal elements and a low firing temperature and a preparation method thereof. Background technique [0002] There are many kinds of traditional fine porcelain formulas. The northern fine porcelain often uses clay-feldspar-quartz ternary composition formula. The chemical composition range of feldspar porcelain is generally SiO 2 66-75%, Al 2 o 3 19-25%, R 2 O and RO are 4-6.5%, where R 2 is an alkali metal element, R is an alkaline earth metal, hereinafter R 2 , R all have the same meaning. Another kind of porcelain stone often used in southern fine porcelain represented by Jingdezhen—the chemical composition range of sericite porcelain with a two-component kaolin formula is generally SiO 2 60-70%, Al 2 o 3 22-30%, R 2 O and RO are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/02C04B33/13C04B33/14C04B33/24C04B33/32
Inventor 张俊
Owner 景德镇景德陶瓷集团有限公司
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