Light ceramic produt and manufacturing method thereof

A lightweight ceramic and manufacturing method technology, applied in the direction of ceramic products, clay products, and other household appliances, can solve the problems of ceramic hollow body damage, difficulty in providing uniform and stable products, and difficulty in dispersing, so as to improve fluidity, The effect of uniform and stable supply and improved dispersibility

Inactive Publication Date: 2003-04-30
河合道子
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, it is difficult to achieve uniform dispersion, and there are problems such as damage to the ceramic hollow body due to excessive mixing.
This method is also difficult to provide a uniform and stable product

Method used

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  • Light ceramic produt and manufacturing method thereof
  • Light ceramic produt and manufacturing method thereof
  • Light ceramic produt and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: Manufacturing example of lightweight ceramic products of the present invention (manufacturing example of extrusion processing)

[0039] First, prepare Esfearz SL150 [gross specific gravity 0.25-0.42, compressive strength (40% presence) 700kgf / cm] manufactured by E company in Australia 2 , Melting point 1600°C, powder diameter 20-150μm] The ceramic hollow body used as the core material was classified, and only the powder with a powder diameter of about 150μm was taken out and used. The appearance of the ceramic hollow body is white powder, and its chemical composition is SiO 2 59.7%, Al 2 o 3 38.3%, Fe 2 o 3 0.40%, CaO 0.20%, TiO 2 1.09%, loss on ignition is 0.30%.

[0040] Then, water was added to 54.9% of silicic acid, 12.6% of sodium oxide, 5.7% of calcium oxide, 8.4% of potassium oxide, 15.8% of aluminum oxide, and 3% of aluminum borate as a coating agent for forming an inorganic coating layer, and the viscosity was measured. Adjustment. In ...

Embodiment 2

[0058] Embodiment 2: the manufacturing example of extrusion molding of light weight ceramic product of the present invention

[0059] The hollow ceramic powder of the double-layer structure obtained by Example 1 is mixed with the modeling clay of plastic clay according to the compounding ratio recorded on Table 3, then 25 parts by weight of water is added thereto and mixed, and extruded by a vacuum and mud machine, Ten molded bodies of the same size as in Example 1 were produced. The chemical composition of the modeling clay used at this time is SiO 2 48.6%, Al 2 o 3 34.1%, Fe 2 o 3 1.1%, CaO 0.4%, TiO 2 0.6%, MgO 0.2%, K 2 O 0.7%, Na 2 O 0.2%.

[0060] Thereafter, the obtained molded product was dried in a drying room at about 40° C. for 10 hours and at 60° C. for 24 hours, and oxidized and fired at 1280° C. in an electric furnace as in Example 1.

[0061] On the other hand, as a control, a product without adding hollow ceramic powder was also produced.

[0062] G...

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Abstract

This invention provides a light-weight pottery article with lower specific gravity than that of general pottery as well as a process for producing the same. The light-weight pottery article of the invention is produced by adding a lightening agent to clay based on silica and alumina, forming the resulting kneaded material into a desired form and calcinating the formed material, wherein the lightening agent is microspherical hollow ceramic powder having a hollow structure based on silica and alumina, the surface of said hollow ceramic powder is coated with an inorganic coating layer based on a silicate compound, e.g. sodium silicate, potassium silicate etc, said hollow ceramic powder is contained in such a state as to be uniformly dispersed at a proportion of 20 to 80% by weight in the base materials, and in said base materials there is a structure in which the neighboring hollow ceramic powders have been integrated with one another via said inorganic coating layer.

Description

technical field [0001] The present invention relates to a high-strength light-weight ceramic product having a specific gravity (for example, 1.3 or less) smaller than that of general ceramics (2.3-2.5). Furthermore, the present invention also relates to a method of manufacturing the lightweight ceramic ware. Background technique [0002] Porcelain and pottery have made great contributions in a wide range of human life, but one of their characteristic disadvantages is their specific weight. Generally speaking, the specific gravity of ceramics is 2.3-2.5. From the merits of the material properties, the weight is a big problem, and weight reduction is strongly desired. In addition, mainly in the field of building materials or artistic ceramic murals, it is hoped that if ceramics with beautiful glaze, free carving, free coloring, and good weather resistance and heat resistance can be lightened, then its use rate will increase further. [0003] So far, several measures have b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B20/00C04B38/08
CPCC04B38/085C04B20/0036C04B20/1074C04B33/00C04B38/0038C04B20/1062
Inventor 河合纪
Owner 河合道子
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