公开(公告)号：US20170283930A1

公开(公告)日：2017-10-05

申请号：US15626837

申请日：2017-06-19

Applicant: United Technologies Corporation

Inventor： Robert J. Meehan ,  Neil B. Ridgeway ,  Christopher J. Millea

IPC: C23C4/02

CPC classification number: C23C4/02 ,  B23K26/082 ,  B23K26/122 ,  B23K26/1224 ,  B23K26/123 ,  B23K26/40 ,  B23K2103/10 ,  C23C4/073 ,  C23C4/134 ,  C23C4/18 ,  C23C14/022 ,  C23C14/083 ,  C23C14/30 ,  C23C14/325 ,  C23C28/3215 ,  C23C28/3455 ,  F01D5/288 ,  F05D2230/13 ,  F05D2230/31 ,  F05D2300/701

Abstract: A method of forming a thermal barrier coating on a metal part includes laser cleaning a surface of the metal part to remove undesirable oxides and residues from the surface of the part. It further includes depositing an aluminum containing bondcoat on the part and thermally interdiffusing the bondcoat and the part with a heat treatment. Laser cleaning a surface of the bondcoat to remove oxides and debris from the surface forms an alpha aluminum oxide layer on the bondcoat. A ceramic topcoat is then deposited on the alpha aluminum oxide layer at a temperature above 1800° F. (982° C.).

公开(公告)号：US20170014968A1

公开(公告)日：2017-01-19

申请号：US14623351

申请日：2015-02-16

Applicant: United Technologies Corporation

Inventor： Bartolomeo Palmieri ,  John P. Rizzo ,  Kaitlin M. Tomeo ,  Alan C. Barron ,  Christopher J. Millea ,  Henry H. Thayer

IPC: B24B29/00 ,  F01D9/02

CPC classification number: B24B29/005 ,  B24B19/14 ,  B24B27/0038 ,  B24B49/16 ,  C23C4/18 ,  F01D5/288 ,  F01D9/02 ,  F05D2220/323 ,  F05D2230/90 ,  F05D2250/621 ,  F05D2300/20

Abstract: A method of polishing an outer surface of a ceramic coated gas turbine engine component includes applying a rotating diamond brush to the outer surface. The brush is configured to achieve a uniform finish of 150 microinches RA or less over the surface. The brush contains diamond impregnated bristles, and is affixed to a rotary head of a robotic arm. A force sensing controller limits brush forces against the component. The component disclosed is a hot section turbine vane designed for directional control of high temperature, high-pressure combustion gases, but the method may be applied to other components utilized in similar aerospace applications. The polished coating provides an improved thermal barrier for maintaining structural integrity of the component in environments having temperatures ranging up to 2,000 degrees Celsius. The method limits abrasive removal of ceramic material to only 0.0005 to 0.00075 inch, and saves time and expense over past practices.

Abstract translation: 陶瓷涂覆的燃气涡轮发动机部件的外表面的抛光方法包括将旋转的金刚石刷施加到外表面。 刷子被配置成在表面上实现150微升RA或更小的均匀整理。 刷子包含金刚石浸渍的刷毛，并且固定到机器人手臂的旋转头部。 力传感控制器限制针对组件的刷子力。 所公开的部件是设计用于高温，高压燃烧气体的方向控制的热段涡轮叶片，但是该方法可以应用于在类似的航空航天应用中使用的其它部件。 抛光的涂层提供了改进的热障，用于在具有高达2000摄氏度的温度的环境中保持部件的结构完整性。 该方法将陶瓷材料的磨料去除仅限于0.0005至0.00075英寸，并节省了与以往做法相比的时间和费用。

公开(公告)号：US10252395B2

公开(公告)日：2019-04-09

申请号：US14623351

申请日：2015-02-16

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Bartolomeo Palmieri ,  John P. Rizzo, Jr. ,  Kaitlin M. Tomeo ,  Alan C. Barron ,  Christopher J. Millea ,  Henry H. Thayer

IPC: B24B29/00 ,  B24B19/14 ,  B24B27/00 ,  B24B49/16 ,  C23C4/18 ,  F01D5/28 ,  F01D9/02

Abstract: A method of polishing an outer surface of a ceramic coated gas turbine engine component includes applying a rotating diamond brush to the outer surface. The brush is configured to achieve a uniform finish of 150 microinches Ra or less over the surface. The brush contains diamond impregnated bristles, and is affixed to a rotary head of a robotic arm. A force sensing controller limits brush forces against the component. The component disclosed is a hot section turbine vane designed for directional control of high temperature, high-pressure combustion gases, but the method may be applied to other components contained within such aerospace applications. The polished coating provides an improved thermal barrier for maintaining structural integrity of the component in environments having temperatures ranging up to 2,000 degrees Celsius. The method limits abrasive removal of ceramic material to only 0.0005 to 0.00075 inch, and saves time and expense over past practices.

公开(公告)号：US09683281B2

公开(公告)日：2017-06-20

申请号：US14683820

申请日：2015-04-10

Applicant: United Technologies Corporation

Inventor： Robert J. Meehan ,  Neil B. Ridgeway ,  Christopher J. Millea

IPC: B05D3/00 ,  C08J7/18 ,  G21H5/00 ,  C23C4/02 ,  C23C4/18 ,  C23C14/08 ,  C23C14/30 ,  C23C28/00 ,  C23C4/073 ,  B23K26/082 ,  C23C4/134 ,  B23K26/122 ,  B23K26/12 ,  B23K26/40 ,  C23C14/02 ,  C23C14/32 ,  F01D5/28 ,  B23K103/10

CPC classification number: C23C4/02 ,  B23K26/082 ,  B23K26/122 ,  B23K26/1224 ,  B23K26/123 ,  B23K26/40 ,  B23K2103/10 ,  C23C4/073 ,  C23C4/134 ,  C23C4/18 ,  C23C14/022 ,  C23C14/083 ,  C23C14/30 ,  C23C14/325 ,  C23C28/3215 ,  C23C28/3455 ,  F01D5/288 ,  F05D2230/13 ,  F05D2230/31 ,  F05D2300/701

Abstract: A method of forming a thermal barrier coating on a metal part includes laser cleaning a surface of the metal part to remove undesirable oxides and residues from the surface of the part. It further includes depositing an aluminum containing bondcoat on the part and thermally interdiffusing the bondcoat and the part with a heat treatment. Laser cleaning a surface of the bondcoat to remove oxides and debris from the surface forms an alpha aluminum oxide layer on the bondcoat. A ceramic topcoat is then deposited on the alpha aluminum oxide layer at a temperature above 1800° F. (982° C.).

公开(公告)号：US20160298222A1

公开(公告)日：2016-10-13

申请号：US14683820

申请日：2015-04-10

Applicant: United Technologies Corporation

Inventor： Robert J. Meehan ,  Neil B. Ridgeway ,  Christopher J. Millea

IPC: C23C4/02 ,  B23K26/082 ,  B23K26/12 ,  B23K26/40 ,  C23C14/32 ,  C23C4/134 ,  C23C14/30 ,  C23C14/08 ,  C23C14/02 ,  B23K26/122 ,  C23C4/073

CPC classification number: C23C4/02 ,  B23K26/082 ,  B23K26/122 ,  B23K26/1224 ,  B23K26/123 ,  B23K26/40 ,  B23K2103/10 ,  C23C4/073 ,  C23C4/134 ,  C23C4/18 ,  C23C14/022 ,  C23C14/083 ,  C23C14/30 ,  C23C14/325 ,  C23C28/3215 ,  C23C28/3455 ,  F01D5/288 ,  F05D2230/13 ,  F05D2230/31 ,  F05D2300/701

Abstract: A method of forming a thermal barrier coating on a metal part includes laser cleaning a surface of the metal part to remove undesirable oxides and residues from the surface of the part. It further includes depositing an aluminum containing bondcoat on the part and thermally interdiffusing the bondcoat and the part with a heat treatment. Laser cleaning a surface of the bondcoat to remove oxides and debris from the surface forms an alpha aluminum oxide layer on the bondcoat. A ceramic topcoat is then deposited on the alpha aluminum oxide layer at a temperature above 1800° F. (982° C.).

Abstract translation: 在金属部件上形成热障涂层的方法包括激光清洗金属部件的表面以从部件的表面去除不需要的氧化物和残留物。 它还包括在该部件上沉积含铝的粘合剂涂层，并用热处理热粘合涂层和部件。 激光清洁粘合涂层的表面以从表面去除氧化物和碎屑在粘合涂层上形成α氧化铝层。 然后在高于1800°F（982℃）的温度下，在α氧化铝层上沉积陶瓷面漆。