SNIF® Sheer LS Gas Nozzle and Flux Injection Nozzle
SNIF SHEER LS NOZZLE
The newly developed SNIF® SHEER LS nozzle is designed for users who require additional hydrogen reduction performance from their existing SNIF SHEER System. The advanced nozzle can now effectively distribute higher process gas flow rates compared to the current SNIF SHEER design, particularly in larger SNIF systems. Casthouse testing has demonstrated improved hydrogen reduction performance at higher process gas flow rates available using the SNIF SHEER LS nozzle. A further benefit to customers is that the new nozzle fits current SNIF nozzle drive assemblies.
SOLID FLUX INJECTION NOZZLE
The SNIF solid flux injection nozzle is designed to inject Promag fused refining agent into the SNIF degasser, eliminating the need to use chlorine gas. This new nozzle employs the conventional SNIF stator / rotor design, which ensures maximum bubble generation, resulting in effective removal of hydrogen, inclusions and alkali metal without the use of metal bath vortexing. The direct-drive power train is replaced by a belt-driven system. The solid flux / inert process gas mixture is injected down the center of the nozzle and exits at the bottom of the rotor. The stator is attached to the nozzle drive assembly using a Shur-Lok®
quick connect coupling system, having the advantages of high strength and enabling easy, fast stator replacement. The solid flux injection nozzle assembly can be installed on all SNIF system vessels. Solid flux injection nozzles are available for SNIF SHEER and older SN-11 designs.
ADVANCED STATOR COUPLER FOR THE SOLID FLUX INJECTION NOZZLE
The SNIF flux injection nozzle incorporates the Shur-Lok® coupling providing the following advantages.
- High strength with better cantilever loading capacity
- Easy and fast stator change-out
PROMAG REFINING AGENTS FOR METAL TREATMENT
Promag removes non-metallic inclusions such as oxides, carbides and borides, sodium, calcium and lithium from liquid aluminium and aluminium alloys. It is a synthetic anhydrous carnallite (KMgCl3, K2MgCl4, K3Mg2Cl7) produced in both fine particle and granular form. Promag reacts quickly and efficiently to remove sodium, lithium and calcium from molten aluminium and aluminium alloys, as well as from refractory furnace linings. Sodium levels less than 1 ppm in high Mg aluminium alloys are attainable in the casting.