Invention Grant
US08136572B2 Method for production of precision castings by centrifugal casting 有权
离心铸造精密铸件生产方法

  • Patent Title: Method for production of precision castings by centrifugal casting
  • Patent Title (中): 离心铸造精密铸件生产方法
  • Application No.: US12310916
    Application Date: 2006-10-23
  • Publication No.: US08136572B2
    Publication Date: 2012-03-20
  • Inventor: Manfred Renkel
  • Applicant: Manfred Renkel
  • Agent Manabu Kanesaka
  • International Application: PCT/EP2006/010191 WO 20061023
  • International Announcement: WO2008/049442 WO 20080502
  • Main IPC: B22D13/06
  • IPC: B22D13/06 B22D21/00
Method for production of precision castings by centrifugal casting
Abstract:
A method of producing a precision centrifugal casting includes: a) providing a centrifugal casting device having a rotor rotatable around an axis, at least one crucible accommodated in the rotor, and at least one mold associated with the crucible and disposed at a first radial distance from the axis, b) creating a metal melt within the crucible, c) rotating the rotor thereby forcing the melt using centrifugal forces from the crucible into the mold, d) exerting a pressure on the melt forced into the mold until the temperature of the solidifying melt has reached a predetermined cooling-temperature in a range of 1300° to 800° C., wherein the pressure corresponds to the centrifugal force acting on the melt just when the mold is completely filled, times a factor of 1.0 to 5.0, and e) relieving the pressure when the temperature of the solidifying melt is lower than the predetermined cooling-temperature.
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