Hycast - SIR

State of the art degassing

The drain-free Hycast I-60/I-25 Siphon Inert Reactor (SIR) in-line filter system is the benchmark for refining, degassing and particle removal of molten aluminium in-line between the furnace and casting machine. This technology has been in operation since its introduction in 2001 and is throughly tested and verified in operation.

Technical features:

• Unique melt refining concept with elevated metal above launder through underpressure
• Bottom-mounted rotor system
• Excellent removal of Hydrogen and inclusions
• No mechanical filtration system required downstream for extrusion ingot lines
• Exceptionally low dross generation due to reactor inert atmosphere
• Low operational cost due to few rotors - gas usage only when in operation
• Easy maintenance and no complex hydraulics

Design features:

• Small footprint and easy to adapt to existing casting lines
• Few components and short installation time
• Sloped reactor bottom to drain metal into launder after casting
• Electrical preheating system with hot air (no preheating needed between casts during normal operation)
• Precast monolithic refractory lining with short relining times
• Two standard designs for all flow rates, I-25 and I-60