Pressureless Sintered Silicon Carbide (SiC) Saggers
Pressureless sintered silicon carbide (SiC) saggers are manufactured using three different forming processes based on product specifications: isostatic pressing, slip casting, and dry pressing. The formed green bodies undergo preliminary processing before being sintered at high temperatures in a pressureless vacuum sintering furnace.
Key Features
High Mechanical Strength
Ensures durability under high loads
Exceptional High-Temperature Resistance
Withstands extreme heat without degradation
Excellent Corrosion Resistance
Resists chemical erosion in harsh environments
Superior Thermal Stability
Maintains structural integrity under prolonged thermal cycling
Customizable Designs
Tailored to meet specific application requirements
Extended Service Life
Delivers stable and long-lasting performance, reducing replacement frequency
Customization Services
Dimensional Customization
Available in round & square configurations with base options: flat, semi-flat, or spherical. Tailored sizing per customer specifications.
Structural Modifications
Flange additions, precision drilling, and other custom structures.
Material Performance Comparison
| Performance |
SSiC |
Al₂O₃ |
Graphite |
Spinel |
Mullite |
| Maximum Temperature |
1600℃ |
1800℃ |
3000℃ |
1700℃ |
1500℃ |
| Thermal Shock Resistance |
★★★★★ |
★★☆☆☆ |
★★★☆☆ |
★★★☆☆ |
★★★☆☆ |
| Antioxidant Properties |
★★★☆☆ |
★★★★★ |
★☆☆☆☆ |
★★★★☆ |
★★★☆☆ |
| Acid Resistance |
★★★★☆ |
★★★☆☆ |
★★★★★ |
★★☆☆☆ |
★★★☆☆ |
| Alkali Resistance |
★★★☆☆ |
★★★★☆ |
★☆☆☆☆ |
★★★★★ |
★★★☆☆ |
Application Scenarios
Saggers are primarily used in kiln heat treatment processes, providing product transportation and protection during high-temperature firing.
Key Advantages by Material Type
Pressureless Sintered SiC (SSiC): Superior overall performance for high-temperature, corrosive, and high-stress environments
Alumina (Al₂O₃): High-temperature resistance up to 1800°C, but poor thermal shock resistance
Graphite: Excellent thermal conductivity, but requires inert atmosphere protection
Reaction-Bonded SiC (SiSiC): Cost-effective alternative, but lower density and corrosion resistance vs. SSiC
