Our Sialon Silicon Nitride Aluminium Immersion Heater has a precise steady temperature control which is of paramount importance to achieve a quick dynamic reheating.

At Sialon Ceramics LTD, our aluminum immersion heater, an industrial electric heater, handles heating of molten non-ferrous metals, including aluminum, magnesium, and zinc alloys, at up to 850°C.

Essentially, an aluminum immersion heater is an industrial immersion heater that directly heats molten aluminum in many applications. The heater’s patented metal resistance is integrated into a high-performance insulator and sheathed in Sialon. Moreover, it’s employed in high-pressure, gravity, and low-pressure die casting, degassing, filtering, and transport ladle reheating.

Advantages of Direct Heating

In direct heating technology, heating components are immersed in the molten metal bath. The process transfers thermal energy via conduction for lower heat loss and greater efficiency. Unconventional materials, including silicon nitride, enclose the heating elements for better thermal conductivity, corrosion resistance, and thermal shock resistance. Direct heating optimizes temperature and energy usage while delivering heat exactly where required.

Some Additional Advantages:

• Uniform thermal conductivity allows even heat dispersion in molten non-ferrous metals.

• Low specific heat capacity of aluminum facilitates rapid thermal response and control.

• Superior resistance to chemical corrosion in molten non-ferrous environments.

• Low thermal expansion coefficient diminishes structural stress and deformation.

• Heightened surface area-to-volume ratio for efficient heat transfer.

• High melting point of aluminum (660.3°C) provides a safety margin for operation.

• Better heat flux density to handle high power loads without compromising heater integrity.

• Wettability features with molten non-ferrous metals for thermal rotor shaft interface performance.

• High resistance to thermal cycling to disregard material fatigue and failure.

• Compatibility with power supply configurations (single-phase and three-phase systems).

• Abridged electromagnetic interference (EMI) due to non-magnetic properties of aluminum.

Impact on Metal Quality

Preserving molten metal purity demands precise temperature control. To avoid overheating and metal damage, our aluminum immersion heater heats accurately. It lowers oxides, corundum, and dross to conserve metal metallurgy. So, our industrial electric heater raises cast part quality and saves metal losses during manufacturing. That helps strengthen product quality and mitigate faults.

Environmental and Cost Benefits

Using our industrial electric heater saves electricity. As mentioned, compared to standard ways, we save up to 50% while directly heating the molten metal. Efficiency cuts operating expenses and CO2 emissions, aiding decarbonization. Upkeep is less frequent with our heaters, which lowers running costs and delays. Such elements render our solution eco-friendly and cheap.

Product Features and Customization

Sialon aluminum immersion heater for molten non-ferrous heating are customizable. Clients may pick power, voltage (up to 600V), and sheath sizes (55, or 90 mm). Immersed length may surpass 1000 mm, and under-flange length is 500–1450 mm. We also use type K thermocouples for accurate temperature measurement. Our heaters are simple to install and use and come with a 12-month warranty. Our high-quality silicon nitride solutions fulfill GMP and FDA needs for reliability in tough industrial applications.