Process for local repair of a damaged thermomechanical part and part thus produced, in particular a turbine part
    2.
    发明授权
    Process for local repair of a damaged thermomechanical part and part thus produced, in particular a turbine part 有权
    对由此产生的损坏的热机械部件和部件,特别是涡轮部分进行局部修复的方法

    公开(公告)号:US09221101B2

    公开(公告)日:2015-12-29

    申请号:US14003453

    申请日:2012-03-06

    摘要: A process and device in production of precise three-dimensional sinters of a shape substantially close to that of an original part, using flash sintering produced by spark plasma sintering (SPS) technology. A mold is produced in a die of an enclosure for SPS flash sintering, the mold being shaped as an impression of the original part. The following are deposited in successive layers in the mold: a layer based on a superalloy powder, a metallic protection layer, and a thermal barrier layer. In a sintering, pressurization is initiated and a pulsed current passes through, producing a rapid rise in temperature in accordance with a flash sintering cycle whose temperature, pressure, and duration are regulated, with at least one temperature plateau and one pressure plateau. The layer of superalloy forms, by diffusion, during the sintering, a bonding continuum of material with the part to be repaired.

    摘要翻译: 使用通过放电等离子体烧结(SPS)技术制造的闪蒸烧结,制造基本上接近于原始部件的形状的精确三维烧结体的方法和装置。 在用于SPS快速烧结的外壳的模具中制造模具,模具被成形为原始部件的印模。 以下在模具中以连续的层沉积:基于超级合金粉末的层,金属保护层和热障层。 在烧结中,开始加压并且脉冲电流通过,根据其温度,压力和持续时间被调节的闪蒸烧结循环,在至少一个温度平台和一个压力平台上产生快速升高的温度。 超合金层通过扩散在烧结过程中形成与要修复的部件的材料的粘合连续体。

    PROCESS FOR LOCAL REPAIR OF A DAMAGED THERMOMECHANICAL PART AND PART THUS PRODUCED, IN PARTICULAR A TURBINE PART
    3.
    发明申请
    PROCESS FOR LOCAL REPAIR OF A DAMAGED THERMOMECHANICAL PART AND PART THUS PRODUCED, IN PARTICULAR A TURBINE PART 有权
    在特定涡轮部件中生产的损坏的热力学部件和部件的局部修复过程

    公开(公告)号:US20130344347A1

    公开(公告)日:2013-12-26

    申请号:US14003453

    申请日:2012-03-06

    IPC分类号: B22F7/04

    摘要: A process and device in production of precise three-dimensional sinters of a shape substantially close to that of an original part, using flash sintering produced by spark plasma sintering (SPS) technology. A mold is produced in a die of an enclosure for SPS flash sintering, the mold being shaped as an impression of the original part. The following are deposited in successive layers in the mold: a layer based on a superalloy powder, a metallic protection layer, and a thermal barrier layer. In a sintering, pressurization is initiated and a pulsed current passes through, producing a rapid rise in temperature in accordance with a flash sintering cycle whose temperature, pressure, and duration are regulated, with at least one temperature plateau and one pressure plateau. The layer of superalloy forms, by diffusion, during the sintering, a bonding continuum of material with the part to be repaired.

    摘要翻译: 使用通过放电等离子体烧结(SPS)技术制造的闪蒸烧结,制造基本上接近于原始部件的形状的精确三维烧结体的方法和装置。 在用于SPS快速烧结的外壳的模具中制造模具,模具被成形为原始部件的印模。 以下在模具中以连续的层沉积:基于超级合金粉末的层,金属保护层和热障层。 在烧结中,开始加压并且脉冲电流通过,根据其温度,压力和持续时间被调节的闪蒸烧结循环,在至少一个温度平台和一个压力平台上产生快速升高的温度。 超合金层通过扩散在烧结过程中形成与要修复的部件的材料的粘合连续体。

    PROCESS FOR PRODUCING A THERMAL BARRIER IN A MULTILAYER SYSTEM FOR PROTECTING A METAL PART AND PART EQUIPPED WITH SUCH A PROTECTIVE SYSTEM
    6.
    发明申请
    PROCESS FOR PRODUCING A THERMAL BARRIER IN A MULTILAYER SYSTEM FOR PROTECTING A METAL PART AND PART EQUIPPED WITH SUCH A PROTECTIVE SYSTEM 审中-公开
    在用于保护金属部件的多层系统中生产热障的方法和装备有这种保护系统的部件

    公开(公告)号:US20130344349A1

    公开(公告)日:2013-12-26

    申请号:US14003339

    申请日:2012-03-07

    IPC分类号: F01D25/08 F01D5/28 B05D3/06

    摘要: A method for producing a thermal barrier in a multilayered system for protecting a metal part made of superalloy, by producing a thermal treatment by flash sintering protection materials in layers superposed on the metal part in an SPS machine enclosure. The layers contain, on a superalloy substrate, at least two layers of zirconium-based refractory ceramics. A metal part is produced according to a SPS flash sintering method and contains a superalloy substrate, a metal sub-layer, a TGO oxide layer and the thermal barrier formed by the method. A first ceramic is an inner ceramic designed to have a substantially higher expansion coefficient. An outer ceramic is designed to have at least lower thermal conductivity, and at least one of a sintering temperature or maximum operating temperature that is substantially higher. The thermal barrier has a composition and porosity gradient from the metal sub-layer to the outer ceramic.

    摘要翻译: 一种用于在用于保护由超级合金制成的金属部件的多层系统中制造热障的方法,通过在SPS机器壳体中重叠在金属部件上的层中通过闪蒸烧结保护材料进行热处理。 这些层在超级合金基底上含有至少两层锆基耐火陶瓷。 根据SPS快速烧结法制造金属部件,并且包含超合金基板,金属子层,TGO氧化物层和通过该方法形成的热障壁。 第一陶瓷是设计成具有显着更高膨胀系数的内陶瓷。 外陶瓷被设计成具有至少较低的热导率,并且烧结温度或最高工作温度中的至少一个基本上更高。 热屏障具有从金属子层到外部陶瓷的组成和孔隙率梯度。