METHOD AND APPARATUS FOR CONTINUOUSLY CASTING NON-FERROUS METALS IN A GRAPHITE-GLASSY SUBSTANCE MOLD

• US 3,794,102 A
• Filed: 03/16/1971
• Issued: 02/26/1974
• Est. Priority Date: 03/16/1971
• Status: Expired due to Term

• Current Assignee: Kurt Binder
• Original Assignee: Kurt Binder
• Inventors: Binder, Kurt
• Primary Examiner(s): Baldwin, Robert D.
• Application Number:
  US05/124,719
• Time in Patent Office: 1,078 Days
• Field of Search: 164/73,138,273R,82,283 117/5.1,5.2,5.3 72/467 249/134,135
• US Class Current: 164/465
• CPC Class Codes: B22D 11/07 Lubricating the moulds

Abstract

Graphite dies or molds used for casting metals contain glasses or fluxes as a lubricant, which softens or melts below the solidification temperature of the metal melt.

Claims

2. In the mold of claim 1 wherein the softening temperature is about 500*C to about 1,000*C.

3. In the mold of claim 1 wherein the softening temperature is below 600*C.

4. In the process of continuously casting non-ferrous metals with the use of a mold having a surface which contacts the metal being cast, the improvement being utilizing a graphite material for the mold, incorporating a glassy substance in the amount of 2-30% within the graphite material as an integral part of the mold to act as a lubricant, the glassy substance having a softening temperature below the solidification temperature of the metal being cast, and forming the mold as a solid non-powdery body.

5. In the process of claim 4 wherein the metal being cast is copper or a copper alloy, and the glassy substance has a softening temperature of about 500*C to about 1,000*C.

6. In the process of claim 4 wherein the metal being cast is a light metal, and the glassy substance has a softening temperature below 600*C.

7. In the process of claim 4 wherein the glassy substance is added to the graphite material before calcining.

8. In the process of claim 4 wherein the glassy substance is added to the graphite material after calcining.

9. In the process of claim 4 wherein the glassy substance is added to the graphite material by soaking.

10. In the process of claim 4 wherein the glassy substance has a softening temperature below 1,000*C.