公开(公告)号：US20190329287A1

公开(公告)日：2019-10-31

申请号：US16383734

申请日：2019-04-15

Applicant: ROLLS-ROYCE plc

Inventor： Aleksander M. CENDROWICZ ,  Paul J. WILSON ,  Akshay BHATT ,  Athira RAJIV ,  Per NOHLERT ,  David A. BELL

IPC: B05D3/00 ,  B05D1/18 ,  B22C9/10 ,  B22C9/12

Abstract: An article 6 made from a porous material, such as a ceramic material, is dipped into a liquid impregnating material 12, such as molten urea in a bath 14. After withdrawal from the bath 14, excess impregnating material 12 is removed from the article 6 by means of an air knife 22. The air knife 22 is directed obliquely into an enclosure 18, which is maintained at a temperature above the melting point of urea. The article is passed into the enclosure 18 through the flow from a further air knife 20 which creates a separation airflow separating the interior of the enclosure 18 from the ambient surroundings. The article is carried by a fixture 6 to be conveyed along the processing line on a conveyor 2.

公开(公告)号：US20160303654A1

公开(公告)日：2016-10-20

申请号：US15078591

申请日：2016-03-23

Applicant: ROLLS-ROYCE PLC

Inventor： Fatos DERGUTI ,  Iain TODD ,  Aleksander M. CENDROWICZ ,  Hector POUS ROMERO

IPC: B22F3/00 ,  B22F3/22 ,  B22F5/04

CPC classification number: B22F3/003 ,  B22F3/10 ,  B22F3/225 ,  B22F5/04 ,  B22F2003/1042 ,  B22F2999/00 ,  F27D5/00

Abstract: A method of sintering a metal injection-moulded, green aerofoil component. The method includes providing a setter having a stationary support arranged to support an aerofoil part of the component and a moveable platform arranged to support an end part of the component, the moveable platform being independently moveable relative to the stationary support. The method further includes locating the green component on the setter such that the aerofoil part and the end part are supported by respectively the stationary support and the moveable platform. The supported green component is then sintered, the moveable platform moving during the sintering relative to the stationary support to accommodate sintering-induced shrinkage of the component.

Abstract translation: 一种烧结金属注射成型的绿色翼型零件的方法。 该方法包括提供具有固定支撑件的定位器，该固定支撑件布置成支撑部件的机翼部分以及布置成支撑部件的端部的可移动平台，所述可移动平台相对于固定支撑件可独立地移动。 该方法还包括将绿色部件定位在固定器上，使得机翼部分和端部分别由固定支撑件和可移动平台支撑。 然后将支撑的绿色部件烧结，可移动平台在烧结期间相对于固定支撑件运动，以适应组件的烧结引起的收缩。

公开(公告)号：US20180345357A1

公开(公告)日：2018-12-06

申请号：US15996915

申请日：2018-06-04

Applicant: ROLLS-ROYCE plc

Inventor： Aleksander M. CENDROWICZ ,  Stewart T. WELCH ,  Paul J. WILSON

IPC: B22C7/02 ,  B22C9/10 ,  B22C9/24

Abstract: For forming a shell mould for investment casting, first and second core components are provided. These are formed of ceramic material. The core components are assembled together for manufacturing a wax pattern containing the core component for formation of a shell mould for investment casting. The core components have an arrangement of precursor location features. The method includes machining at least one of the precursor location features to a required shape to provide an arrangement of final location features. The core components are then positioned with respect to each other and/or with respect to a wax pattern die by contacting the arrangement of final location features with corresponding positioning features of a receiving device and/or the wax pattern die.

公开(公告)号：US20180015532A1

公开(公告)日：2018-01-18

申请号：US15641034

申请日：2017-07-03

Applicant: ROLLS-ROYCE plc

Inventor： Aleksander M. CENDROWICZ

IPC: B22C9/10 ,  B28B7/42 ,  B28B1/24

CPC classification number: B22C9/10 ,  B22C7/06 ,  B28B1/24 ,  B28B7/42

Abstract: A die for moulding a core by a PIM process, the core having at least one internal feature, the die including; a first die part defining a first portion of an outer surface of the core; a second die part defining a second portion of the outer surface of the core; and an internal feature forming element for defining the surface of an internal feature of the core; wherein the internal feature forming element incorporates a temperature control circuit.

公开(公告)号：US20190176222A1

公开(公告)日：2019-06-13

申请号：US16186632

申请日：2018-11-12

Applicant: ROLLS-ROYCE plc

Inventor： Aleksander M. CENDROWICZ

IPC: B22C9/10 ,  F01D5/18 ,  F01D5/28

Abstract: An assembly of core components is provided for investment casting. First core component has an arrangement of pedestals and second core component has an arrangement holes. The first and second core components are assembled to mate in a required positional relationship. Pedestals 106 extend through the holes so that a protruding portion of each pedestal protrudes from the hole. A moulding material is applied to encapsulate the protruding portions of the pedestals to secure the pedestals with respect to the holes and thereby to secure the first core component with respect to the second core component.

公开(公告)号：US20180214935A1

公开(公告)日：2018-08-02

申请号：US15879527

申请日：2018-01-25

Applicant: ROLLS-ROYCE plc ,  ROSS CERAMICS LTD

Inventor： Aleksander M. CENDROWICZ ,  Graham J. BING ,  Stewart T. WELCH

IPC: B22C9/10 ,  B22C9/24 ,  B22C7/02 ,  B22C9/04

CPC classification number: B22C9/108 ,  B22C7/02 ,  B22C9/04 ,  B22C9/103 ,  B22C9/24 ,  B22C21/14 ,  F01D5/187 ,  F05D2230/211 ,  F05D2240/304 ,  F05D2240/307

Abstract: Described is a ceramic core for producing cast component for a gas turbine engine, the core comprising: a first cavity forming member; a second member adjacent to or opposite the first cavity forming member; and a removable web which joins the first and second members.