Apparatus for processing a liquid alloy
AssigneeQingyou Han
InventorQINGYOU HAN
Life of this patent
Estimating the term…
Abstract
An apparatus for producing solid alloy components from its liquid state are provided. A molten alloy is rapidly cooled using a chill to temperatures below the thermosolutal transition temperature of the alloy. Finite-amplitude acoustic vibration is applied on the chill to shake off dendrites that form on the chill surface, to stir the slurry containing the fragments of dendrites, and to shake off slurry material that sticks on the surface of the chill as the chill is separating from the slurry. The slurry is then immediately poured into a chamber of a forming machine or a mold cavity shaped into solid components.
Claims12
An apparatus for production of a slurry containing a small fraction of non-dendritic solid crystals from its liquid alloy for subsequent forming into solid alloy components, comprising:
- a vessel or a trough for containing a quantity of liquid alloy and for pouring the alloy into another chamber of a forming apparatus or a mold cavity;
- a chill having a bottom surface with a shape and size complementary to that of the liquid alloy;
- a plurality of a small-amplitude vibrator coupled to the chill for producing non-dendritic solid crystals in the liquid alloy and for shaking of the liquid alloy or the slurry that sticks on the surfaces of the chill while it is separating from the slurry;
- means for controllably contacting a top surface of the liquid alloy with the chill, and maintaining the bottom surface of the chill in a substantial contact with the top surface of the liquid alloy, and vibrating the chill,
- whereby the slurry containing a small fraction of non-dendritic solid crystals is formed from the liquid alloy while the top surface of the liquid alloy remains quiescent.
Dependencies are inferred from the claim text.