Invention Grant
US08136573B2 Method for production of turbine blades by centrifugal casting 有权
通过离心铸造生产涡轮叶片的方法

  • Patent Title: Method for production of turbine blades by centrifugal casting
  • Patent Title (中): 通过离心铸造生产涡轮叶片的方法
  • Application No.: US12310925
    Application Date: 2007-02-07
  • Publication No.: US08136573B2
    Publication Date: 2012-03-20
  • Inventor: Manfred Renkel
  • Applicant: Manfred Renkel
  • Agent Manabu Kanesaka
  • Priority: WOPCT/EP2006/010191 20061023
  • International Application: PCT/EP2007/001024 WO 20070207
  • International Announcement: WO2008/049465 WO 20080502
  • Main IPC: B22D13/06
  • IPC: B22D13/06
Method for production of turbine blades by centrifugal casting
Abstract:
A turbine blade having a leading edge portion and a flowing-off edge portion is formed using the following steps: providing a centrifugal casting device having a rotor and at least one crucible being accommodated in the rotor; providing a mold having an extended cavity for forming the turbine blade; arranging the mold so that an inlet opening of the mold is arranged with an outlet opening of the crucible, and further arranging the mold so that a mold leading edge is directed in a direction against the rotational direction of the rotor; forcing a metal melt by means of centrifugal forces from the crucible into the mold; exerting a pressure on the melt being forced into the mold until the temperature of the solidifying melt has reached a predetermined cooling-temperature; and relieving the pressure when the temperature of the solidifying melt is below the predetermined cooling-temperature.
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