STAR Molten Metal Treatment System
The STAR™ is a mobile or stationary rotary degassing system for aluminium foundries and diecasters, available in many models. In spinning-rotor degassing/fluxing systems, a metered amount of inert gas and/or flux is injected into the molten aluminium through the rotating graphite shaft and rotor. The STAR rotor shears the inert gas into tiny bubbles and disperses them evenly throughout the melt. Unwanted hydrogen gas and non-metallic inclusions are attracted to the inert gas bubbles and rise to the surface. The flux injection allows a steady flow of flux below the metal line which promotes oxide entrapment. The combined effect of gas injection and fluxing helps improve the quality of aluminium alloys and reduces overall operating costs.
Smart Models (with PLC)
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STAR 3500 fixed degasser with flux injection (illustrated)
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STAR 3000 fixed degasser
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STAR 2500 mobile degasser with flux injection
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STAR 2000 mobile degasser
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STAR 1500 hoist well degasser or lid degasser with flux injection
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STAR 1000 hoist well degasser or lid degasser
Manually Operated Model
System is Reliable, Safe and Smart
- Reliable—Ruggedly designed for years of trouble-free foundry service
- Reliable—Low routine maintenance
- Safe—Safety interlocks for user protection
- Safe—Redundant lift chain for safety
- Smart—Single push button for starting and stopping an auto cycle
- Smart—Self diagnostic tools for simple, quick troubleshooting
- Smart—PLC (programmable logic controller) monitors and
controls all aspects of operation
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Drive Unit
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- Fast and easy shaft change-out with patented, threadless, SHUR-LOK® coupling featuring less gas leakage and less removal torque
- AC variable speed electric motor drive for reliable and efficient operation
- Wide spaced driveshaft bearings for best stability and service life
- External bearing lubrication fittings
- Forced-air cooling for electric drive motor and shaft bearings
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Control Panel
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- NEMA panel enclosure
- Independent low flow purge gas
- Variable frequency AC supplied for precise shaft drive control
- 230 / 460 VAC available
- Powerful enhanced control features such as on-screen equipment testing and diagnostics, cycle data logging capabilities, and optional network communications
- Flux injection incorporates advanced control and feedback using variable frequency AC
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Lift and Base
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- Rugged construction using structural steel tubing and heavy-duty forklift type lift chains
- Safe and smooth operation, utilizing redundant lifting components and water glycol hydraulic power
- Adjustable downward travel speed
- Standard 42 in (107 cm) lift stroke
- Adjustable lift height to fit any size vessel
- Hydraulic power unit enclosed and protected within
the base (see illustration)
- Optional rotating boom available
- Graphite rotor reach of 51.25 in (130 cm) from center of rotor to center of support column—functional distance from center of rotor to floor plate is 39.25 in (1 m)
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Flux Injection Module (optional)
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- Reliable and accurate flux injection through a no-clog auger feed mechanism
- Flux feed rates from 1/8–3/4 lb/min (~57–340 g/min)
- 25 lb (~11 kg) capacity drainable holding tank
- Pressure monitored tank avoids clogging
- Backlit inspection viewport to monitor flux feed
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Pyrotek Graphite
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- Over 50 years of graphite and equipment manufacturing in ISO 9001:2008 certified USA facility
- Proprietary graphite treatment to retard oxidation and maximize life—industry leading oxidation resistance
- Special head designs diffuse the gas into tiny bubbles for effective degassing
- STAR rotor is recommended for both degassing and flux injection applications
- Starburst® rotor is recommended for degassing applications only
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Related Documents
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