Kam Tai 600*500*18mm Cordierite kiln shelf & shelves for tunnel kiln
1. Introduction
Cordierite makes the ceramic manufacture of products like catalytic converters possible. They constantly heat up and cool down quickly and must not crack because of the shock. These converters get their thermal shock resistance properties from a bonded matrix of low-expansion cordierite crystals. These crystals form during firing between 1300 to 1400C (interestingly, cordierite crystals have a lesser thermal expansion along one axis than another). Thus, the better the density of the precursor mix and controlled the firing the better the properties of the cordierite material are.
While cordierite ceramic vessels could be made (e.g. ovenware), the material has such a low thermal expansion it is very difficult (or impossible) to match a glaze (without crazing). Notwithstanding this, many recipes can be found for cordierite ovenware or flameware. However these are seldom fired above cone 10 so any thermal shock resisting behavior they have is attributable to grog content or open fired matrix rather than to any cordierite development (which is of course not happening).
2. Characteristics:
Excellent energy savings
Lighter weight and higher load capacity
Excellent distortion resistance at high temperature
Suitable for faster firings with better bearing capacity for hot and cold extremes
Plain kiln shelf
Plain kiln shelf are the most common type of primary kiln furniture, usually produced by semi-dry pressing, but can also be made by pressure-casting. There are extra large kiln shelf , extra kiln shelf, plain kiln shelf, perforated kiln shelf, grooved kiln shelf,trapezoid kiln shelf, round kiln shelf and special kiln shelf.
3. Specification
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Item and Descriptions
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Specifications Offered
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Al2O3 (%)
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40~48
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SiO2 (%)
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45~48
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MgO (%)
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5~8
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MOR(MPa)
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20℃
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14
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1250℃
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12
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Bulk Density(g/cm3)
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2.0
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Open Porosity(%)
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28
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Phase composition(%)
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Mullite
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55
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Cordierite
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30
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Max. Service temperature ℃
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1280
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4. Package
We use Plywood box to pack Cordierite Kiln shelf.
We have professional logistic company, they can deliver to any port in the world and they can offer very good price.
5. Why Choose Us
1) Over 10 years engaged in designing and manufacturing.
2) Factory supplier directly, Skillful manufacturing, Steady worker .
3) Modern design,Available in different sizes and colors.
4) Competitive price on stable quality.
5) High Professional Qualification: SGS ISO
