Luoyang Anjing Intelligence Equipment are a global leader in high-temperature electric furnaces
Corundum Mullite Pusher Plate for High-Temperature Kilns
PRODUCT PARAMETERS
Description
Corundum-Mullite Push Plates
Corundum-mullite push plates are manufactured using high-purity corundum (Al₂O₃) and high-quality mullite as main raw materials, through scientific formulation, high-pressure molding, and high-temperature sintering processes. The products combine the excellent high-temperature resistance of corundum with the good thermal shock resistance of mullite, featuring high high-temperature strength, deformation resistance, wear resistance, corrosion resistance, and long service life. Corundum-mullite push plates can be used at temperatures up to 1700℃, suitable for high-temperature continuous sintering and heavy-duty applications.
Product Features
- Corundum-Mullite Dual-Phase Design for Synergistic Performance Optimization
Using high-purity electrofused plate-shaped corundum and electrofused mullite as the main materials, it is pressed by a high-tonnage hydraulic press or vibratory press and sintered at ultra-high temperatures. The dual-phase ceramic combines the advantages of mullite phase (high melting point, low coefficient of thermal expansion, creep resistance, and thermal shock resistance) with corundum phase (high elasticity, wear resistance, chemical corrosion resistance, and oxidation resistance). Compared with single corundum or mullite materials, it exhibits superior high-temperature mechanical properties and thermal shock resistance.
- Ultra-High Temperature Resistance and Wide Operating Temperature Range
It can operate stably for extended periods in environments ranging from 1400-1750℃, with a maximum operating temperature exceeding 1750℃. Al₂O₃ content ≥85%, Fe₂O₃ ≤0.3%, bulk density ≥2.85g/cm³, and room temperature compressive strength ≥80MPa.
- Uniform Thickness and Smooth Surface
The product has uniform thickness and a smooth surface, resulting in a smooth contact surface with the workpiece. High thermal conductivity contributes to uniform heating of the workpiece.
- Good Chemical Stability and No Product Contamination
Chemically stable, it does not easily react with the fired product, preventing slag formation and product contamination. It exhibits strong resistance to slag penetration and excellent corrosion resistance. Suitable for use in high-temperature kilns under various atmospheres.
- Excellent High-Temperature Creep Resistance and No Deformation Over Long-Term Use
Excellent flexural and shatter resistance at high temperatures, with strong mechanical load-bearing capacity. Excellent resistance to bending creep, preventing deformation over long-term use. High load softening initiation temperature (≥1650℃).
| Composition / Property | Content |
|---|---|
| Al₂O₃（%） | 86.52 |
| SiO₂（%） | 13.11 |
| Na₂O（%） | 0.18 |
| Bulk density（g/cm³） | 3.0 |
| Apparent porosity（%） | 14.3 |
| Flexural strength at room temperature（MPa） | 8.8 |
| Flexural strength at 1400℃（MPa） | 12.2 |
| Maximum service temperature（℃） | 1700 |
Application Areas
- Electronic Ceramics Industry: Widely used in pusher kiln sintering of electronic ceramics such as MLCCs (Multilayer Ceramic Capacitors), varistors, magnetic materials, and filters.
- Structural Ceramics and Advanced Ceramics: Suitable for high-temperature sintering of Al₂O₃ structural ceramics (substrates, ceramic films, spark plugs, grinding media) and ZrO₂ structural ceramics (zirconia cutting tools, mobile phone backplates, bearings, fiber optic ferrules).
- Powder Metallurgy: Used for sintering powder metallurgy parts, as well as for firing stainless steel, titanium alloys, and other metal powder products.
- Magnetic Materials: Used for pusher kiln firing of magnetic materials such as soft magnetic ferrites and permanent magnetic ferrites.
- Fluorescent Materials and Rare Earth Materials: Suitable for high-temperature sintering processes of fluorescent materials and rare earth materials.
- High-Temperature Kiln Equipment: Widely used in various electronic ceramic pusher kilns, metallurgical furnaces, silicon molybdenum furnaces, shuttle kilns, and other high-temperature kilns.
- Other High-Temperature Applications: Suitable for high-temperature sintering of 95% and 99% alumina ceramics, zirconia ceramics, and ceramic powders.
Company Profile
A professional enterprise specializing in heat treatment technology services and the R&D, manufacturing, and sales of high-temperature electric furnaces.
The company focuses on developing high-temperature electric furnaces covering a full temperature range of -100℃ to 2600℃. Its products include experimental electric furnaces, vacuum atmosphere furnaces, industrial kilns, and medium-frequency induction heating equipment. Main products include box furnaces, tube furnaces, lifting furnaces, pusher kilns, bogie furnaces, rotary kilns, tunnel kilns, and various specialized medium-frequency furnaces.
The company adheres to technological innovation and has passed ISO9001 and EU CE certifications. It owns 21 registered trademarks, 29 patents, and 27 software copyrights.
Payment Methods
TT
Shipment Methods
The electric furnace is packaged in three layers: first wrapped in foam paper, then wrapped in plastic film, and finally packed in a wooden crate.
Frequently Asked Questions (FAQ)
- What is the maximum temperature that the corundum mullite pusher plate can withstand?
The maximum operating temperature of the product is 1700℃. It is recommended to control the long-term operating temperature according to the actual sintering process to extend the product’s service life.
- What are the advantages of corundum mullite pusher plates compared to ordinary mullite pusher plates?
Corundum mullite pusher plates have higher high-temperature resistance, high-temperature mechanical strength, and load-bearing capacity, while also possessing good thermal shock resistance, making them more suitable for high-temperature, heavy-load, and continuous sintering conditions.
- Which industries and products are suitable for sintering?
The product is widely used in high-temperature sintering and heat treatment in industries such as electronic ceramics, advanced ceramics, lithium battery materials, magnetic materials, powder metallurgy, refractory materials, and new energy materials.
- How to extend the service life of the pusher plate?
It is recommended to place workpieces evenly to avoid localized overload; to heat and cool slowly according to process requirements to avoid rapid heating and cooling; and to regularly clean residues from the pusher plate surface to reduce the impact of sintered material adhesion on the product.
- Do you support customized specifications and dimensions?
A: Yes. Customization is available based on the dimensions, load-bearing requirements, and kiln equipment parameters provided by the customer.
