Product Information:
Three-phase silicon carbide rods are non-metallic heating elements made from high-purity silicon carbide through a high-temperature recrystallization sintering process. They are integrally formed by three equal-diameter rods and a bottom bridge, featuring a three-tube U-shaped structure with all three lead-out ends located on the same side. This design is specifically intended for three-phase power supply, allowing direct connection to a three-phase power network without complex wiring conversion, offering easy installation and a compact structure. The lead-out ends can be connected with aluminum braid, providing low contact resistance, reliable electrical connection, and easy replacement and maintenance. Under high-temperature oxidizing atmospheres, a quartz protective film forms on the surface, significantly extending the service life.
Performance Parameters:
SiC Content: ≥98%; Apparent Porosity: 20%–22%; Thermal Expansion Coefficient: approx. 4.8×10⁻⁶/°C; Straightness: ≤0.2%; Bulk Density: 2.6–2.8 g/cm³; Flexural Strength at Room Temperature: ≥40 MPa; Electrical Resistivity: 0.08–0.1 Ω·cm; Resistance Value Deviation: ±10%; Maximum Operating Temperature: 1600°C.
Product Dimensions:
Common diameter range: 10–60 mm; lead-out ends have the same diameter as the heating section. Manufacturable single-arm heating section length: approx. 150–2400 mm; bridge width and lead-out end length can be customized according to furnace chamber dimensions and wiring requirements. Orders are expressed as “Diameter × Single-arm Heating Length × Bridge Width × Lead-out End Length.” Yuko Corporation can produce according to customer requirements and drawings.
Product Applications:
Widely used in box furnaces, bogie hearth furnaces, tube furnaces, muffle furnaces, tunnel kilns, roller kilns, elevator furnaces, and various laboratory electric furnaces. As heating elements, they provide a stable and controllable high-temperature heat source for processes such as sintering and heat treatment.