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Cordierite-Mullite Support Plate For Kiln Furnitures
Our Cordierite-Mullite Support Plate, a core kiln furniture product from Henan Lite Refractory, blends cordierite’s excellent thermal shock resistance with mullite’s high-temperature strength. With 42% Al₂O₃, 48% SiO₂, and 6% MgO, it features a max working temperature of 1350℃, low bulk density (1.8-1.9g/cm³), and strong bend strength (13MPa). Designed for ceramic kilns, it serves as a stable support for ceramic workpieces during firing, resisting cracking from rapid temperature changes. Backed by CE certification, TüVRheinland verification, and flexible customization, we meet industrial demands with 10,000+ pieces monthly supply and factory-direct pricing ($6-$10/piece).
Description
1. Product Overview
This support plate is manufactured via advanced processes: precision batching of natural cordierite and mullite minerals, high-pressure molding (to ensure uniform density), high-temperature sintering (1500℃+), and precision cutting (thickness 6-40mm). The cordierite-mullite composite structure solves two key pain points of single-material plates: it avoids the brittleness of pure mullite plates and the low high-temperature strength of pure cordierite plates. Its 26% apparent porosity balances heat insulation and structural stability-preventing overheating of ceramic workpieces while withstanding the weight of stacked products. Standard shape is a flat plate, with full customization for size, thickness, and even special hollow designs to fit non-standard ceramic kiln structures.
2. Key Features
Superior Thermal Shock Resistance: Cordierite-mullite composite phase ensures no cracking under 1100℃ rapid cold-hot cycles, adapting to frequent startup/shutdown of ceramic kilns and reducing replacement costs by 40%.
High-Temperature Durability: Max working temperature 1350℃ (refractory temperature 1580-1770℃), maintaining structural integrity in long-term kiln firing zones (e.g., ceramic tunnel kiln high-temperature sections).
Lightweight & High Strength: 1.8-1.9g/cm³ bulk density reduces kiln cart load (easy to handle), while 13MPa bend strength withstands 50kg+ stacked ceramic workpieces without deformation.
Low Impurity & Stable Performance: CrO content 0, SiC content seldom-no heavy metal contamination to ceramic glazes; uniform composition ensures consistent thermal conductivity across the plate (avoids uneven workpiece firing).
Cost-Effective Bulk Supply: Factory price as low as $6/piece for ≥500 pieces; 100% on-time delivery rate ensures no delays to ceramic production lines.
3. Technical Parameters
| Parameter | Specification |
|---|---|
| Main Composition | Al₂O₃ 42%, SiO₂ 48%, MgO 6%, CaO (little), CrO 0, SiC (seldom) |
| Bulk Density | 1.8-1.9g/cm³ |
| Apparent Porosity | 26% |
| Bend Strength | 13MPa |
| Max Working Temperature | 1350℃ |
| Refractory Temperature | 1580-1770℃ |
| Thickness | 6-40mm (customizable) |
| Shape | Flat plate (customizable to special shapes) |
| Color | Light Yellow |
| MOQ | 1 piece (sample); 100 pieces (customization) |
4. Application Scenarios
Ceramic Industry: Ceramic tunnel kiln support plates, roller kiln workpiece carriers, and glaze firing kiln linings-providing stable support for ceramic tiles, tableware, and sanitary ware during high-temperature firing.
New Energy Industry: Auxiliary support plates for lithium battery material kilns (compatible with low-impurity requirements of battery materials), based on the widespread use of cordierite-mullite materials in new energy 匣钵 (as referenced in industry reports).
Special Ceramics: High-temperature sintering support for alumina ceramics, zirconia ceramics-ensuring no contamination to high-purity ceramic products.
5. Service & Support
Customization Service: Supports size (length/width up to 1000mm), thickness (6-40mm), and logo/packaging customization (MOQ 100 pieces); design plans delivered within 3 days based on customer drawings.
Samples & Quality Assurance: Free small samples provided (customer covers shipping); products pass CE and TüVRheinland tests, with batch inspection reports (including composition, strength, and temperature resistance) provided.
Delivery & Pricing: 1-500 pieces shipped within 50 days, bulk orders (>500 pieces) with negotiable lead time; pricing tiers: 100-299 pieces $10/piece, 300-499 pieces $8/piece, ≥500 pieces $6/piece.
After-Sales Guarantee: 1-year quality warranty (free replacement for cracking caused by product defects); 24/7 technical support for kiln plate installation and maintenance.
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