SCR SiC Heating Elements

CVSIC SCR SiC Heating Rods Description

CVSIC Double-Thread Silicon Carbide (SiC) Heating Elements (SD/SCR/LS Types) are crafted from high-density reaction-sintered silicon carbide, with a hot zone density of up to 2.8g/cm³ and a maximum operating temperature of 1650℃. The unique double-spiral groove design delivers a high resistance ratio and surface loading, reducing current consumption and saving on control equipment and wiring costs. The single-end connection simplifies installation, offering energy efficiency, a long lifespan, and excellent corrosion resistance, making it ideal for zirconia sintering, new energy battery cooling systems, and high-temperature industrial furnaces.

Ordering Information

When ordering SCR Silicon Carbide Heating Elements, please provide the following parameters:

• OD: Outer Diameter (mm)
• HZ: Hot Zone Length (mm)
• CZ: Cold Zone Length (mm)
• OL: Overall Length (mm)
• Resistance: Ω (customizable)
• Example: SD Type, OD=32mm, HZ=300mm, CZ=250mm, OL=550mm, Resistance=4.46Ω, denoted as: SD Type/32/300/550/4.46Ω

Note: Contact us for other specifications or customization.

CVSIC SCR SiC Heater Connection Method

• Contact Surface Design: Cold end uniformly coated with aluminum for enhanced conductivity and low-resistance contact.
• Electrical Connection: Secured with flat aluminum braid and spring clips, ensuring stable single-end connection, ideal for hard-to-access furnace designs.
• Note: Select hot/cold end diameter and length based on furnace structure, temperature, and power requirements. Use a Silicon-Controlled Rectifier (SCR) voltage regulator for precise temperature control to extend lifespan.

CVSIC SCR SiC Heater Application Fields

CVSIC SCR Silicon Carbide Heating Elements are widely used in:

• Zirconia Sintering: For dental furnaces and industrial zirconia material sintering (1450-1550℃), supporting open crucible processes for simplified operation and improved precision.
• New Energy Batteries: As thermal management material for high-temperature processes in battery cooling systems.
• Electronic Semiconductors: Supports wafer sintering, diffusion furnaces, and encapsulation material heating.
• Optical-Electronic Devices: Meets production and heat treatment needs for precision optical-electronic devices.
• Automotive Industry: Used in electronic component encapsulation and high-temperature heat treatment processes.
• High-Temperature Industrial Furnaces: Suitable for ceramic sintering, glass manufacturing, and high-uniformity heating scenarios.

CVSIC SCR SiC Elements Product Advantages

• Energy Efficiency: The double-spiral groove design increases the resistance ratio and surface loading, reducing current consumption and saving on control equipment and wiring costs.
• Ultra-High Temperature Resistance: Hot zone density of 2.8g/cm³, operates up to 1650℃, with up to 2000 hours of continuous use in oxidizing atmospheres at optimal temperatures.
• Corrosion and Oxidation Resistance: The high-density, low-porosity structure resists oxidation, making it making it ideal for harsh environments.
• Fast and Even Heating: Current-driven heating ensures uniform temperature fields and quick ramp-up, boosting production efficiency.
• Easy Installation: The single-end connection design suits hard-to-access furnaces, simplifying both installation and maintenance.
• Global Service: ISO-certified factory, 360-ton annual capacity, offers free samples, no minimum order, and 7-30 day delivery.

CVSIC SCR SiC Rods Installation Method

To ensure the performance and safety of SCR Silicon Carbide Heating Elements, follow these steps:

1. Inspect Element: Before installation, ensure the element is free of cracks or damage and that the spiral grooves are intact.
2. Installation Type: Supports vertical or horizontal installation. For horizontal installation, the hot zone requires no support, and the grooves should be level. Wiring holes should be 10% larger than the element diameter.
3. Fixing Device: Use ceramic chucks or dedicated clamping devices, avoiding tension to allow independent expansion and contraction.
4. Power Connection: Connect to a 110-480V power supply with flat aluminum braid and spring clips for proper resistance matching.
5. Installation Position: Position the hot zone at the furnace center, avoiding extension into the furnace wall. A 1/2-inch (13mm) conical groove in the furnace wall is recommended to optimize radiation and temperature uniformity.
6. Preheating: Gradually increase power during first use to avoid thermal shock.
7. Regular Maintenance: Check aluminum coating connections and clamps for looseness or corrosion.

Note: Professionals should perform the installation. Contact us for detailed guidance.

Design Recommendations

To optimize the performance of SCR Silicon Carbide Heating Elements, follow these suggestions:

• Hot Zone Length: Match the hot zone length to the furnace width to avoid insertion into the furnace wall, preventing ablation.
• Cold Zone Length: Cold zone length should equal furnace wall thickness plus 50-150mm extension for accessory connection.
• Furnace Aperture: The wiring hole diameter should be 1.1 times the element diameter to allow free expansion and prevent cracking.
• Spacing Design: Maintain ≥3 times the outer diameter between the element and material/furnace wall and ≥4 times the outer diameter for center-to-center spacing to optimize heat distribution.
• Temperature Control System: Use a PID controller for precise temperature control to extend the element’s lifespan.
• Spiral Groove Protection: Avoid mechanical damage to the double-spiral grooves to maintain corrosion resistance.

Customization Services

CVSIC offers flexible customization for SCR Silicon Carbide Heating Elements:

• Size Customization: Adjust the outer diameter and hot/cold zone length to fit your furnace design.
• Resistance Optimization: Customize resistance to match 110-480V power configurations.
• Special Cold End Design: Provide customized cold ends to optimize resistance ratio and conductivity.
• Special Coatings: Offer oxidation-resistant or corrosion-resistant coatings for enhanced performance in harsh environments.
• OEM/ODM Services: Support bulk wholesale, free samples, no minimum order, and 7-30 day delivery.
• Technical Support: We provide expert guidance and thermal field simulation to support the selection and installation process.
• Contact us for customized solutions or free samples!

CVSIC is committed to providing high-quality SCR Silicon Carbide Heating Elements for industries worldwide, optimizing zirconia sintering, new energy batteries, and high-temperature processes. Contact us for product quotes, customization services, or free samples to boost your heating efficiency!