11.
    发明专利
    未知

    公开(公告)号:DE69933427T2

    公开(公告)日:2007-08-16

    申请号:DE69933427

    申请日:1999-12-20

    Abstract: The invention relates to a process for removing ceramic thermal barrier layers from gas turbine engine hardware. A combination of chemical and mechanical steps are used to remove the thermal barrier coating from the substrate without removing the bond coat from the substrate. In particular the process includes a caustic solution treatment in an autoclave under controlled conditions followed by a mechanical abrasion process which leaves the bond coat on the substrate in condition to receive a repair ceramic thermal barrier coating.

    12.
    发明专利
    未知

    公开(公告)号:DE69933427D1

    公开(公告)日:2006-11-16

    申请号:DE69933427

    申请日:1999-12-20

    Abstract: The invention relates to a process for removing ceramic thermal barrier layers from gas turbine engine hardware. A combination of chemical and mechanical steps are used to remove the thermal barrier coating from the substrate without removing the bond coat from the substrate. In particular the process includes a caustic solution treatment in an autoclave under controlled conditions followed by a mechanical abrasion process which leaves the bond coat on the substrate in condition to receive a repair ceramic thermal barrier coating.

    MULTI-SHOT CASTING
    13.
    发明公开
    MULTI-SHOT CASTING 审中-公开
    多重铸造

    公开(公告)号:EP2931458A4

    公开(公告)日:2016-07-27

    申请号:EP13862454

    申请日:2013-12-13

    CPC classification number: B22D19/16 B22D27/045 F01D5/147 F05D2230/211

    Abstract: An alloy part is cast in a mold (280) having a part forming cavity (292, 294, 296). The method comprises pouring a first alloy into the mold. The pouring causes: a surface (550) of the first alloy in the part forming cavity to raise relative to the part forming cavity; a branch flow of the poured first alloy to pass upwardly through a first portion (304) of a passageway; and the branch flow to pass downwardly through a second portion (310), of the passageway; solidifying some of the first alloy in the passageway to block the passageway while at least some of the first alloy in the part forming cavity remains molten. A second alloy is poured into the mold atop the first alloy and solidified.

Patent Agency Ranking