Direct chill casting method with coolant removal
AssigneeKaiser Aluminum & Chemical Corporation
InventorTheodore C. Zinniger
Life of this patent
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Abstract
The invention relates to a D.C. casting assembly having an inflatable, rubber-like collar near the discharge end of the mold for removing coolant from the surface of the solidified metal. The collar, which surrounds the metal exiting from the mold is initially deflated to allow the large butt of the ingot or billet to pass through without contact and then inflated to effect contact with the ingot or billet and thereby remove coolant.
Claims3
In the method of D.C. casting ingot or billet wherein coolant is applied to the ingot or billet and wherein coolant is subsequently removed from the ingot or billet, the improvement comprising:
- A. passing the ingot or billet through an inflatable elastomeric collar;
- B. maintaining the collar in a deflated condition at the start-up of casting to allow the large butt of the ingot or billet formed during start-up to pass through the collar with essentially no contact therewith, and
- C. inflating the collar after the passage of the large butt of the ingot or billet through the collar to urge the collar into substantial contact with periphery of the ingot or billet to thereby remove coolant from the surfaces thereof.
Dependencies are inferred from the claim text.