Tech. for mfg. multicrystal strengthening porcelain

A manufacturing process and technology for strengthening porcelain, which is applied in the field of ceramics, can solve the problems of high firing temperature and high manufacturing cost, and achieve the effects of low firing temperature, good wear resistance and high glaze hardness

Inactive Publication Date: 2007-12-19
詹振明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, using industrial product micro-powder tetragonal zirconia and adding appropriate amount of yttrium oxide stabilizer to manufacture high-toughness and high-strength zirconia ceramics. Although this method has good product quality, the firing temperature is high and the manufacturing cost is very high, so it can only be used for In special occasions, it is difficult to popularize and apply in the production of daily-use ceramics
Chinese Invention Patent Application No. 98110110.0 (Publication No. CN1198422A) discloses "Manufacturing method of high whiteness, high strength and low brittle ceramic products". On the basis of the chemical composition of daily-use ceramics, by increasing the content of magnesium oxide and reducing the content of aluminum oxide , so that the mechanical strength and thermal stability of ceramic products are improved, and the mechanical strength can reach 150-160MPa, which is double the national standard of 60-80MPa. higher temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Using conventional ceramic manufacturing technology, ordinary kaolin is used as the main raw material, and other auxiliary raw materials are used to adjust the formula ratio, including raw material modification → batching ball milling → sieving and iron removal → mud filtering → mud refining → aging → molding → drying → glazing →drying→firing→inspection→packing and other processes, among which there are the following measures to improve the performance of the finished product:

[0034] 1) In the raw material modification process, ordinary kaolin is placed in a reaction tank, and concentrated acid is added for modification, so that the composition of ordinary kaolin is SiO 2 49-52%, Al 2 o 3 34-36%, and has high plasticity.

[0035] 2) Adjust the ingredients according to the formula ratio of the designed blank to meet the requirements. Introduce 4% Al in the billet 2 o 3 Whiskers and 1.5% ZrO 2 whiskers.

[0036] 3) After batching, carry out ball milling, iron r...

Embodiment 2

[0051] Using conventional ceramic manufacturing technology, ordinary kaolin is used as the main raw material, and other auxiliary raw materials are used to adjust the formula ratio, including raw material modification → batching ball milling → sieving and iron removal → mud filtering → mud refining → aging → molding → drying → glazing →drying→firing→inspection→packing and other processes, among which there are the following measures to improve the performance of the finished product:

[0052] 1) In the raw material modification process, ordinary kaolin is placed in a reaction tank, and concentrated acid is added for modification, so that the composition of ordinary kaolin is SiO 2 46-49%, Al 2 o 3 32-34%, and has high plasticity.

[0053] 2) Adjust the ingredients according to the formula ratio of the designed blank to meet the requirements. Introduce 3% Al in the billet 2 o 3 Whiskers and 2% ZrO 2 whiskers.

[0054] 3) After batching, carry out ball milling, iron rem...

Embodiment 3

[0069] Using conventional ceramic manufacturing technology, ordinary kaolin is used as the main raw material, and other auxiliary raw materials are used to adjust the formula ratio, including raw material modification → batching ball milling → sieving and iron removal → mud filtering → mud refining → aging → molding → drying → glazing →drying→firing→inspection→packing and other processes, among which there are the following measures to improve the performance of the finished product:

[0070] 1) In the raw material modification process, ordinary kaolin is placed in a reaction tank, and concentrated acid is added for modification, so that the composition of ordinary kaolin is SiO 2 43-46%, Al 2 o 3 36-38%, and has high plasticity.

[0071] 2) Adjust the ingredients according to the formula ratio of the designed blank to meet the requirements. Introduce 5% Al in the billet 2 o 3 Whiskers and 1.0% ZrO 2 whiskers.

[0072] 3) After batching, carry out ball milling, iron r...

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Abstract

The invention relates to polycrystal intensified ceramic manufacturing technology that belongs to ceramic manufacturing technology field. It adopts common kaolin as main raw material. The main constituents of the ingot is 52-60% SiO2, 15-22% Al2O3, 15-21% MgO, 0.5-2% ZnO, 3-5% ZrO2, 0.5-3% BaO, and the other 1-3%. 3-5% Al2O3 crystal whisker and 1-2% ZrO crystal whisker are induced into the ingot, and 5-10% nm SiO2 and 1-2% ZnO are induced into glaze material. After the process of modifying the raw material, mixing and grinding, filtering to remove iron, filtering mire, drilling mire, banalitying, molding, drying, glazing, drying, sintering, checking and packaging, the common kaolin is modified to have 43-52% SiO2, 32-38% Al2O3. The invention could produce high level ceramic.

Description

technical field [0001] The invention belongs to the technical field of ceramics, and relates to a manufacturing process of polycrystalline reinforced porcelain. Background technique [0002] As we all know, ceramic is a brittle material with low mechanical strength, poor thermal stability, and easy to break. For a long time, people have been using various methods and approaches to improve the brittleness of ceramics, and improve toughness by increasing strength. For example, using industrial product micro-powder tetragonal zirconia and adding appropriate amount of yttrium oxide stabilizer to manufacture high-toughness and high-strength zirconia ceramics. Although this method has good product quality, the firing temperature is high and the manufacturing cost is very high, so it can only be used for In special occasions, it is difficult to popularize and apply it in the production of daily-use ceramics. Chinese Invention Patent Application No. 98110110.0 (Publication No. CN1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/14C04B35/622
Inventor 詹振明
Owner 詹振明
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