The NSiC (nitride bonded silicon carbide) protection sleeve is a cost-effective professional solution customized for electric heating tubes and thermocouples in zinc and aluminum solution and molten metal working conditions. Sintered with composite ceramic technology, it integrates the high toughness and thermal shock resistance of silicon nitride and the high thermal conductivity and corrosion resistance of silicon carbide. Compared with pure silicon nitride, NSiC delivers equivalent reliable performance for hot-dip galvanizing, aluminizing and zinc-aluminum electroplating industries at a lower cost, effectively solving common failures such as corrosion of stainless steel sleeves and thermal cracking of ordinary ceramics.
1. Superior Zinc & Aluminum Corrosion Resistance: The dense pore-free structure resists erosion, permeation and scaling from high-temperature molten zinc-aluminum and acid-base electrolyte. It avoids medium adhesion and metal liquid corrosion, with a service life 3-5 times longer than traditional metal sleeves, greatly reducing replacement and downtime costs.
2. Excellent High Temperature & Thermal Shock Resistance: It stably operates at 0–600℃ for conventional zinc-aluminum solution and withstands over 900℃ for molten zinc and aluminum working conditions. The outstanding thermal stability prevents cracking caused by sudden temperature changes, adapting to continuous industrial production.
3. High Heat Efficiency & Safety Insulation: Featuring high thermal conductivity and low heat storage, the sleeve ensures uniform and fast heat transfer with low energy loss. It provides stable insulation performance up to 4000V, with flame retardant and anti-oxidation properties, effectively preventing electric leakage and short-circuit risks.
4. Easy Installation & Low Maintenance: The integrated high-strength structure supports straight insertion, thread and flange installation, suitable for immersion use in various zinc-aluminum tanks and furnaces. The smooth surface resists scaling and simplifies daily cleaning and maintenance.
Temperature Range: 0–600℃ (zinc-aluminum solution), ≥900℃ (molten zinc & aluminum); Withstand Voltage: ≤4000V; Applicable Power: 50W–20KW; Material: NSiC (nitride bonded silicon carbide, high cost-performance composite ceramic); Customization: Full-size customization, explosion-proof type available.
Mainly used for heating and temperature measurement protection in hot-dip galvanizing, hot-dip aluminizing, zinc-aluminum alloy processing, molten non-ferrous metal and electroplating solution constant temperature industries, widely applicable to metallurgy, surface treatment and chemical supporting equipment.
1. NSiC ceramic is hard and brittle; avoid violent impact, extrusion and forced installation to prevent cracks. 2. Apply step heating in high-temperature molten pools to avoid sharp temperature difference impact. 3. Suitable for pure zinc and aluminum medium; long-term contact with severely corrosive mixed media is prohibited. 4. Clean with soft methods only; do not scrub with hard tools or cool high-temperature sleeves with cold water. 5. Inspect regularly and store idle products in dry and moisture-proof environments.
We provide targeted customization according to tank size, temperature conditions and installation methods. All products are fully inspected before delivery, with stable quality, sufficient stock, professional technical support and reliable after-sales warranty service.
Tags: #NSiCSleeve #NitrideBondedSiliconCarbide #ElectricHeatingSleeve #ZincAluminumSolutionProtection #HighTemperatureCeramicSleeve #HotDipGalvanizingParts
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