Surface Protection [ Return towards Applications ]
The process SPAL (Surface Protection AIR LIQUIDE) uses cryogenic liquids to deter liquid metal oxidation. The liquids used are argon or nitrogen.
Advantages :
- Furnace refractory life extension
- Greater metal fluidity (less dissolved oxygen)
- Improved metal properties
- Reduction in consumption of deoxidising agents
- Cost of the cryogenic product
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