Recycling method for Al—B 4 C composite materials

Details Recycling method for Al—B 4 C composite materials Recycling method for Al—B 4 C composite materials

2005-04-21

2009-06-23

King, Roy (Department: 1793)

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

C420S590000, C148S688000

Reexamination Certificate

active

07550029

ABSTRACT:
A method is described for reclaiming an Al—B4C composite scrap material. The method involves heating a liquid pool of molten aluminum while also pre-heating the scrap material. The scrap material is then added to the molten aluminum and a predetermined melt temperature is maintained in the liquid pool until all of the scrap material melts into the molten aluminum to form a resultant composite melt. Finally, the resultant composite melt is stirred to promote uniformity. A method is also described for preparing a B4C-containing aluminum cast composite products that involves preparing a mixture of free-flowing B4C particles and molten aluminum and stirring the mixture to wet the aluminum to the B4C particles. The mixture is then cast into a cast composite material and processed to form the cast composite product and Al—B4C composite scrap material. The scrap material is then reclaimed by the method described above.

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