Product Name:
Industrial Metal Heating Core (Sheathed Resistance Heating Element)
Product Material:
Heating Resistor: Nickel-Chromium ($NiCr$) or Iron-Chromium-Aluminum ($FeCrAl$) alloy; Insulation: High-purity compressed Magnesium Oxide ($MgO$) powder; Outer Sheath: Stainless Steel (304/316L/310S), Incoloy, or Titanium.
Material Characteristics:
Superior mechanical impact resistance, High surface power density, Wide operating voltage range, Excellent ductile properties for custom shaping, Oxidation resistance at high temperatures, Stable electrical resistivity.
Application Fields:
Industrial immersion heaters, Injection molding manifolds, Packaging sealing bars, Oven heating elements, Large-scale solder pots, Oil and gas pre-heaters, Space heating systems, Defrosting modules.
Application Industries:
Biomedical (Sterilization equipment), Advanced Machinery (Plastic processing), New Energy (BMS thermal management), Fluid Control (Heavy oil heating), Electronic Engineering (Wave soldering pots), Aerospace (Environmental control systems), Petrochemical (Pipeline heat tracing), Broad Semiconductor (Chamber heating).
Processing Difficulties:
Achieving high-density MgO compaction to prevent dielectric breakdown, Ensuring precise centering of the resistance wire within the sheath, Managing moisture control during sealing to prevent insulation degradation, Precision bending of the metal sheath without compromising the internal circuit.
Processing Flow:
Resistance wire coiling → Metal tube cutting and cleaning → Automatic filling of MgO powder → Tube reduction (swaging) for densification → High-temperature annealing → Terminal welding and sealing → Insulation resistance and hi-pot testing → Final bending and shaping → Quality inspection → Packaging.
Delivery Period:
Standard tubular elements: 10-20 days, Customized industrial-scale assemblies: 25-40 days.
This Metal Heating Core is a robust and versatile solution for demanding industrial heating requirements. Engineered with high-grade resistance alloys encased in a protective metal sheath, it offers unmatched durability against mechanical shock and vibration compared to ceramic alternatives. The internal high-purity MgO layer ensures efficient heat transfer while maintaining a high dielectric barrier. Designed to operate in harsh environments, including direct immersion in liquids or high-pressure gas streams, these cores provide reliable, long-term performance for heavy-duty thermal processing and large-scale industrial machinery.
Key Features
Mechanical Ruggedness: Metal-sheathed design protects against physical impact and harsh handling.
High Power Capability: Capable of delivering extremely high wattage for large-scale industrial heating tasks.
Custom Geometries: The ductile metal sheath can be formed into various shapes (U-shape, spiral, finned) to optimize heat distribution.
Corrosion Resistance: Choice of sheath materials (Stainless, Titanium, Incoloy) allows for use in aggressive chemical environments.
Cost-Effective Scalability: Offers the best value for high-volume, high-power heating applications across diverse industries.
