Rotating degassing assemblies for aluminum melt purification — they disperse nitrogen or argon into fine bubbles that remove dissolved hydrogen and oxide slag, significantly improving alloy quality.
Purification of the liquid aluminum alloy is the main means of improving its overall performance. Mixing the purifying gas with flux and injecting it into the aluminum melt through a rotating graphite rotor is currently the most advanced degassing method used internationally.
Because the bubbles produced are fine and well dispersed, they mix evenly with the rotating melt and rise slowly in a spiral path with long contact time — instead of forming a continuous straight-line gas channel — so harmful hydrogen is effectively removed and the purification effect is significantly improved.
Rotating injection turns purifying gas into a cloud of fine bubbles that scrub the melt.
Purifying gas — nitrogen or argon — plus flux is blown down through the shaft into the aluminum melt.
The rotating rotor shears the gas into a large quantity of fine, dispersed micro-bubbles throughout the metal.
By partial-pressure difference and surface adsorption, the bubbles absorb dissolved hydrogen and pick up oxide inclusions.
Bubbles spiral up slowly, carrying hydrogen and slag to the surface — purifying the melt.
Shears the gas into fine bubbles and disperses them evenly through the melt.
Carries the rotor and channels purifying gas down into the aluminum melt.
Matched rotor and shaft sets supplied to your degassing-unit dimensions.
Large quantity of small, well-distributed bubbles.
Bubbles blend uniformly with the rotating melt.
Long contact time, no straight-line gas channel.
Absorbs dissolved hydrogen from the aluminum melt.
Adsorbs and floats out oxide inclusions.
Significantly improves degassing and alloy quality.
Custom-made: rotor head and shaft are produced to your degassing-unit dimensions and connection. Send a drawing or the make/model of your unit for an exact match.
Send your degassing-unit make/model or a drawing, plus quantity — we reply with the matching rotor and shaft and pricing within one business day.