Superior Performance with Black Diamond
Where do you use Onex’s Black Diamond Silicon Nitride Bonded Silicon Carbide material?
NBSiC is commonly used for abrasion resistance, corrosion resistance, and for refractory which includes:
Attrition Mill Liners
Bins, Hoppers, and Chutes
Boiler and Burner Liners
Reactor Vessels
Crucibles
Cyclone Scroll Liners
Monolithic Cyclone Liners
Centrifuge Port Hole Liners
Gas Scrubber Liners
Guides and Scrapers
Immersion Tubes
Kiln Furniture
Muffle Arches
Nozzles
Pumps, Valves, and Chokes
Jet Mills/Micronizers
Thermocouple Tubes
Silicon carbide grains provide abrasion resistance due to their hardness, 9.0 - 9.5 on the Mohs hardness scale (diamond is 10). The silicon nitride bond phase (NBSiC) provides the “Glue” offering thermal shock and chemical resistance for excellent wear performance in harsh environments and during high-temperature performance; the conservative maximum operating temperature of 1525 C.
Onex’s Black Diamond (1) NBSiC is US-made for consistent, superior product quality and hassle-free supply timing. Onex uses silicon carbide to build custom precast and formed shapes. Harnessing their years of custom design experience, Onex assists customers with design support on custom-formed shape needs with the Black Diamond application, including large and complex shapes.
Onex has documented improvements on several common refractory furnace parts with Black Diamond.
Muffles have 3x the life extension over other options with a 3 year lifecycle of use. The Black Diamond muffles have improved performance and with minimal internal draft in new design, and replacements are simplified. The same muffle is used throughout. Faster, simpler, better.
Saggers have a 2x life extension over other silicon carbide materials. Customers have switched entire plants as a way to alleviate hoop stresses and sidewall cracks.
Exhaust stacks offer a cost-based advantage over more expensive boron-nitride stacks while performing equal-to-slightly better. These parts are used to exhaust waste gas from one of the hottest areas of the furnace, removing trapped vapors.
Purge connectors are used to transport nitrogen gasses into muffle sections whether formerly funnel type, 3 piece version or 2 piece version.
Onex’s team can help you select the right Black Diamond option for your needs. We’ll go through a series of questions about your needs:
Application type
Previous material(s) used & lifetime in service
Maximum service temperature and ramp time
Flow material, sizing, and velocity
Reason for material change (quality, availability, performance upgrade, etc)
Quantity for trial, and quantity with successful results (estimate)
Timing of shutdown or trial installation
Which dimensions are critical, which are subject to change? (wall thickness, radii, draft, surface finish of internals)
The end result? Improved product performance, increased throughput via reduced downtime, lower overall costs based upon improved performance, and the ability to plan maintenance based on consistent performance.
