公开(公告)号：SG188032A1

公开(公告)日：2013-03-28

申请号：SG2012043246

申请日：2012-06-12

Applicant: UNITED TECHNOLOGIES CORP

Inventor： JOSEPH PARKOS ,  CURTIS H RIEWE ,  THOMAS M MORIN ,  BRIAN S TRYON

Abstract: A method of stripping gamma/gamma prime polycrystalline alloy bond coats from single crystal gamma/gamma prime nickel based superalloys, including the steps of grit blasting followed by the use of hydrochloric acid solutions, followed by rinsing. The cycle may be repeated several times, with visual inspection between cycles.Figure 1

公开(公告)号：SG104997A1

公开(公告)日：2004-07-30

申请号：SG200300818

申请日：2003-02-27

Applicant: UNITED TECHNOLOGIES CORP

Inventor： RAMON M VELEZ JR ,  THOMAS M MORIN ,  JOHN S PLANETA ,  RONALD R SOUCY

IPC: F01D5/28 ,  C25F5/00 ,  C25F7/00 ,  F01D25/00 ,  F02C7/00

Abstract: A molded tooling fixture (10) for supporting an airfoil (16) during an electrochemical stripping process comprises a holder (14) for receiving the airfoil, which holder (14) has a slot (24) in which a serrated portion of the airfoil is positioned. The holder (14) is formed from an electrically non-conductive material such as molded plastic. The slot (24) has at least one serrated surface (28,30) which mates with at least one serration (22) on the airfoil (16). The fixture (10) further includes a support arm (12) on which the holder (14) is supported. The support arm (12) is also formed from an electrically non-conductive material such as molded plastic. Still further, the fixture (10) includes a rod (80) formed from an electrically conductive material which sits in a groove (68) in the support arm (12) and which contacts a lower surface (86) of the airfoil (16).