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Thermal isolation spray for casting articles

  • US 10,434,568 B2
  • Filed: 03/15/2013
  • Issued: 10/08/2019
  • Est. Priority Date: 04/12/2012
  • Status: Active Grant
First Claim
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1. A method for casting an article, comprising:

  • spray-depositing a thermal insulator coating onto an inside surface of a mold cavity, the spray-depositing comprising spraying a fibrous coating mixture to a thickness of 0.01 to 0.2 inches onto the inside surface of the mold cavity and allowing the fibrous coating mixture to dry, the fibrous coating mixture consisting of ceramic fibers and a liquid and an optional release agent; and

    introducing a molten material into the mold cavity and in contact with the thermal insulator coating, wherein the molten material within the mold cavity remains in a molten state for a predetermined dwell time.

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