A heat-resistant porcelain with high thermal shock resistance

A heat-resistant and thermal-shock technology applied to heat-resistant porcelain. In this field, it can solve the problems of easy cracking and damage, limit the range of product use, etc., and achieve the effect of strengthening the use performance, widening the range of firing temperature, and improving the thermal stability and mechanical strength of the product.

Active Publication Date: 2022-04-12
景德镇市民俗文化瓷业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing heat-resistant ceramic products are added with a large amount of spodumene to generate Li 2 O·Al 2 o 3 ·SiO2 2 system to improve the thermal shock resistance of products. With the development of society and the improvement of living standards, people's requirements for ceramic products are also increasing. At present, the mechanical strength and thermal shock resistance of heat-resistant ceramic products can no longer meet various forms. The needs of cooking, in the rapid cooling and hot environment, it is easy to break and damage, which seriously limits the scope of use of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A heat-resistant porcelain with high thermal shock resistance is characterized in that: natural mineral raw materials and industrial chemical raw materials are used, and the weight percentage of the material composition is: 25% of lithium china stone, 28% of kaolin, 10% of magnesium carbonate, and 20% of bauxite %, ammonium molybdate 2%, spodumene 10%, potassium feldspar 5%, after batching and ball milling, add 10% pre-burnt material, mix, sieve, press filter mud, smelt, stale, shape, Drying, glazing, secondary drying, and firing processes to obtain heat-resistant porcelain products.

[0018] The mass percent of the material composition of the calcined material is: 30% of magnesium phosphate, 30% of alumina, 20% of quartz, and 20% of albite.

[0019] The particle fineness of the calcined material passes through a 500-mesh sieve, and the sieve residue is less than 0.5%; the firing temperature of the calcined material is 1200°C.

[0020] The firing system of the calcined...

Embodiment 2

[0028] A heat-resistant porcelain with high thermal shock resistance is characterized in that: natural mineral raw materials and industrial chemical raw materials are used, and the weight percentage of the material composition is: 30% of lithium china stone, 20% of kaolin, 15% of magnesium carbonate, and 15% of bauxite %, 5% ammonium molybdate, 5% spodumene, 10% potassium feldspar, after batching and ball milling, add 12% pre-fired material, mix, sieve, press filter mud, smelt, stale, shape, Drying, glazing, secondary drying, and firing processes to obtain heat-resistant porcelain products.

[0029] The mass percentage of the material composition of the calcined material is: 35% of magnesium phosphate, 30% of alumina, 20% of quartz, and 15% of albite.

[0030] The particle fineness of the calcined material passes through a 500-mesh sieve, and the sieve residue is less than 0.5%; the firing temperature of the calcined material is 1200°C.

[0031] The firing system of the calci...

Embodiment 3

[0039] A heat-resistant porcelain with high thermal shock resistance is characterized in that: natural mineral raw materials and industrial chemical raw materials are used, and the weight percentage of the material composition is: lithium china stone 28%, kaolin 25%, magnesium carbonate 12%, bauxite 17% %, ammonium molybdate 3%, spodumene 6%, potassium feldspar 9%, after batching and ball milling, add 13% pre-fired material, mix, sieve, press and squeeze mud, smelt, stale, shape, Drying, glazing, secondary drying, and firing processes to obtain heat-resistant porcelain products.

[0040] The mass percentage of the material composition of the calcined material is: 34% of magnesium phosphate, 22% of alumina, 24% of quartz, and 20% of albite.

[0041] The particle fineness of the calcined material passes through a 500-mesh sieve, and the sieve residue is less than 0.5%; the firing temperature of the calcined material is 1200°C.

[0042] The firing system of the calcined material...

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Abstract

The invention relates to a heat-resistant porcelain with high thermal shock resistance, using natural mineral raw materials and industrial chemical raw materials, according to the weight percentage of the material composition: 25-30% of lithium china stone, 20-30% of kaolin, and 10-15% of magnesium carbonate , bauxite 15-20%, ammonium molybdate 2-5%, spodumene 5-10%, potassium feldspar 5-10%, after batching and ball milling, add pre-burnt material 10-15%, mix well, Sieving, pressing and pressing mud, refining mud, aging, forming, drying, glazing, secondary drying, and firing processes to obtain heat-resistant porcelain products. The production method of the invention is scientific and reasonable, advanced in technology, easy to implement, high in yield, good in product quality, and can greatly improve product thermal stability and mechanical strength, so it has broad market prospects.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to heat-resistant porcelain with high thermal shock resistance. Background technique [0002] Most of the existing heat-resistant ceramic products are added with a large amount of spodumene to generate Li 2 O·Al 2 o 3 ·SiO2 2 system to improve the thermal shock resistance of products. With the development of society and the improvement of living standards, people's requirements for ceramic products are also increasing. At present, the mechanical strength and thermal shock resistance of heat-resistant ceramic products can no longer meet various forms. The needs of cooking, in the rapid cooling and hot environment, it is easy to break and damage, which seriously limits the scope of use of the product. Therefore, there is an urgent need to invent a heat-resistant porcelain product with good thermal shock resistance under high temperature conditions. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/19C04B35/622C04B35/626C04B35/64C04B41/86C03C8/00
CPCC04B35/19C04B35/622C04B35/62645C04B35/64C04B41/86C04B41/5022C03C8/00C04B2235/349C04B2235/3206C04B2235/3217C04B2235/3256C04B2235/3418C04B2235/3222C04B2235/3463C04B2235/6562C04B2235/6567C04B2235/9607C04B2235/96C04B41/4578C04B41/0072
Inventor 蔡玲玲赵楠
Owner 景德镇市民俗文化瓷业有限公司
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