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Ceramic roller with thermal shock resistance and high-temperature volume stability and preparation method thereof

A technology of ceramic rollers and stable volume, applied in the field of processing and manufacturing of ceramic rollers, can solve the problems of easy bending deformation, high purity of cordierite, poor thermal shock resistance, etc., to promote synthesis, low thermal expansion coefficient, and reduce environmental load Effect

Active Publication Date: 2018-12-11
JIN GANG NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a ceramic roller with good thermal shock resistance, good high-temperature volume stability and low price and its preparation method, reusing the waste ceramic roller, and producing cordierite with relatively high purity. High, to solve the problem of poor thermal shock resistance of existing ceramic rollers or easy bending and deformation under high temperature

Method used

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  • Ceramic roller with thermal shock resistance and high-temperature volume stability and preparation method thereof
  • Ceramic roller with thermal shock resistance and high-temperature volume stability and preparation method thereof
  • Ceramic roller with thermal shock resistance and high-temperature volume stability and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0174] (1) Formula:

[0175] (1) Aggregate

[0176] Kaolin 18kg

[0177] Fireclay 5kg

[0178] Cordierite 27kg

[0179] Talc powder 15kg

[0180] Magnesite 2kg

[0181] Silica powder 2kg

[0182] Alumina powder 4kg

[0183] Corundum Mullite Roll Clinker 15kg

[0184] Zirconium silicate 9kg

[0185] Barium carbonate 1kg

[0186] Cobalt oxide 2kg.

[0187] (2) Binder

[0188] Carboxymethyl cellulose, add-on is 2.9kg.

[0189] (2) Preparation method:

[0190] (1) Put kaolin 18kg, refractory clay 5kg, cordierite 27kg, talc powder 15kg, magnesite 2kg, silica powder 2kg, alumina powder 4kg, corundum mullite roller clinker 15kg, zirconium silicate 9kg, barium carbonate 1kg, cobalt oxide 2kg mixed batching, and prepare mixed material through ball milling, spraying, homogenization process;

[0191] (2) Dry mix the mixture with 2.9kg of carboxymethyl cellulose for 6.0mins, then add 16kg of water and 1.0kg of ethylene glycol for 12mins.

[0192] (3) Carry out twice granulati...

Embodiment 2

[0197] (1) Formula:

[0198] (1) Aggregate

[0199] Kaolin 18kg

[0200] Fireclay 5kg

[0201] Cordierite 29kg

[0202] Talc powder 14kg

[0203] Magnesite 2kg

[0204] Silica powder 3kg

[0205] Alumina powder 4kg

[0206] Corundum Mullite Roll Clinker 16kg

[0207] Zirconium silicate 6kg

[0208] Barium carbonate 2kg

[0209] Cobalt oxide 1kg.

[0210] (2) Binder

[0211] Carboxymethyl cellulose, the period addition is 2.6kg.

[0212] (2) Preparation method:

[0213] (1) Put kaolin 18kg, refractory clay 5kg, cordierite 29kg, talc powder 14kg, magnesite 2kg, silica powder 3kg, alumina powder 4kg, corundum mullite roller clinker 16kg, zirconium silicate 6kg, barium carbonate 2kg, cobalt oxide 1kg mixed batching, and prepare the mixed material through ball milling, spraying, homogenization process;

[0214] (2) Dry mix the mixture with 2.6kg of carboxymethyl cellulose for 5.0mins, then add 17kg of water and 0.8kg of ethylene glycol for 12mins.

[0215] (3) Carry ...

Embodiment 3

[0220] (1) Formula:

[0221] (1) Aggregate

[0222] Kaolin 18kg

[0223] Fireclay 5kg

[0224] Cordierite 30kg

[0225] Talc powder 16kg

[0226] Magnesite 1kg

[0227] Silica powder 2kg

[0228] Aluminum oxide powder 5kg

[0229] Corundum Mullite Roll Clinker 14kg

[0230] Zirconium silicate 7kg

[0231] Barium carbonate 1kg

[0232] Cobalt oxide 1kg.

[0233] (2) Binder

[0234] Thermosetting phenolic resin, its addition is 1.2kg.

[0235] (2) Preparation method:

[0236] (1) Put kaolin 18kg, refractory clay 5kg, cordierite 30kg, talc powder 16kg, magnesite 1kg, silica powder 2kg, alumina powder 5kg, corundum mullite roller clinker 14kg, zirconium silicate 7kg, barium carbonate 1kg, cobalt oxide 1kg mixed batching, and prepare mixed material through ball milling, pressure filtration process;

[0237] (2) 1.2kg of thermosetting phenolic resin is added in the mixture, and vacuum mud is prepared into mud material;

[0238] (3) extruding the mud through a vacuum e...

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Abstract

The invention discloses a ceramic roller with the thermal shock resistance and the high-temperature volume stability. The ceramic roller is prepared by selecting kaolin, refractory clay, cordierite, talcum powder, magnesite, silica powder, alumina powder, a corundum-mullite roller clinker, zirconium silicate, barium carbonate and cobalt oxide as main raw materials. According to a finished productof the ceramic roller, the thermal shock resistance (1100 DEG C to room temperature) is greater than or equal to 20 times for no cracking, the bending strength at normal temperature is greater than orequal to 50 MPa, the bending strength at high temperature (1100 DEG C) is greater than or equal to 45 MPa, the thermal expansion coefficient is 3.0-4.0*10<-6> / DEG C (1000 DEG C), and the outer diameter change rate of the roller (1100 DEG C refiring) is less than or equal to 0.1%. The ceramic roller has the advantages that the problem that the bending deformation of a corundum-mullite ceramic roller is easily generated in a quenching zone or an area with great temperature difference can be solved, the thermal shock resistance is good, the high-temperature volume stability is high, the thermalexpansion coefficient is low, the deformation resistance is strong, and the ceramic roller can be widely applied to the quenching zone of a roller kiln.

Description

technical field [0001] The invention relates to the technical field of processing and manufacturing ceramic rollers, in particular to a ceramic roller with thermal shock resistance and high-temperature volume stability and a preparation method thereof. Background technique [0002] Ceramic roller is a kind of special refractory kiln furniture. It plays the role of supporting and conveying ceramic bricks and other products in the roller kiln and drying kiln. It is the core component of the roller kiln. It is widely used in architectural ceramics, daily ceramics, electronic ceramics, magnetic materials, glass heat treatment and other fields. [0003] At present, the ceramic rollers used in the roller kilns of ceramic production enterprises are mainly corundum-mullite ceramic rollers. The main defect is that the thermal expansion coefficient is high. ) during use, due to the large temperature difference, the ceramic roller is prone to bending deformation in this area, thus aff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/195C04B35/622
CPCC04B35/195C04B35/622C04B35/66C04B2235/3217C04B2235/3418C04B2235/3427C04B2235/3445C04B2235/3463C04B2235/349C04B2235/442
Inventor 方仁德朱志超林珊王玉梅梁章发严玉琳
Owner JIN GANG NEW MATERIALS
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