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Ceramic slabs and a method for manufacturing thereof

A manufacturing method, ceramic plate technology, applied to clay products, other household utensils, fibrous fillers, etc., can solve the problems of uneven top surface, expensive metal powder, bricks, etc.

Inactive Publication Date: 2010-09-15
GRANITIFIANDRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Oxidation of the metal powder, which entails costly and laborious grinding operations, also prevents the manufacture of natural bricks and bricks with structured surfaces, i.e. bricks with uneven tops and irregularities such as Stone slabs from the quarry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] The basic material includes commonly used monochromatic atomized ceramic powder with a particle size of about 300 μm, wherein a mica-like α-ferric oxide mixture with a layered crystal structure is distributed in the ceramic powder by mechanical mixing.

[0025] The mica-like ferric oxide mixture includes mica-like α-ferric oxide with different particle sizes. In particular, among these ferric oxides, 2% have a particle size greater than 1000 μm, 40% are between 600 and 1000 μm, and the remaining 58% are smaller than 600 μm. The mica-like ferric oxide is provided by KARNTNER MONTAN IN IDUSTRIE GmbH company, the trade name is mica-like iron oxide MIOX SG 1000, and its melting point is 1560°C.

[0026] Said mixture containing 90wt% of ceramic powder and 10wt% of mica-like ferric oxide was fed into a conventional ceramic mold for brick making and subjected to 400kg / cm 2 pressure.

[0027] After molding, a conventional drying cycle and a firing cycle at a temperature of 12...

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Abstract

A method for production of ceramic slabs comprising a mixture of atomised ceramic powders and a mixture of alpha hematites.

Description

technical field [0001] The present invention relates to flaky or massive ceramic plates imitating natural stone and its manufacturing method. Background technique [0002] Research in the field of ceramics is known to obtain ceramic plates or sheets imitating marble or natural stone. [0003] A search of the aesthetics revealed that some ceramic slabs imitating marble and stone displayed evenly distributed surface spots. [0004] The applicant of the present application has developed a method for the manufacture of ceramic flakes with a brightly colored speckled aesthetic like that found in natural stone mica. [0005] The above method, described in Italian patent application RE2004A000116, consists in using as tile slurry a mixture of atomized clay and very fine metallic powders with a very low carbon content but at least one noble metal (e.g. chromium, nickel , cobalt and molybdenum) are high in content. [0006] Then the mixture is fed into a common ceramic tile mold, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/14C04B35/66C04B33/20C04B35/622
CPCC04B33/14C04B33/20C09C1/24C04B2235/9615C04B2235/604C04B2235/5427C04B2235/3272C01P2004/60
Inventor 乔瓦尼·佩利切利
Owner GRANITIFIANDRE
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