公开(公告)号：US12123104B2

公开(公告)日：2024-10-22

申请号：US17845260

申请日：2022-06-21

Applicant: Raytheon Technologies Corporation

Inventor： Ryan C. Breneman ,  Dilip M. Shah ,  Steven J. Bullied ,  Shiela R. Woodard

IPC: B22D27/04 ,  C22C19/05 ,  C30B21/02 ,  C30B29/52

CPC classification number: C30B21/02 ,  B22D27/045 ,  C22C19/056 ,  C22C19/057 ,  C30B29/52

Abstract: A casting method includes forming a seed. The seed has a first end and a second end. The forming includes bending a seed precursor. The seed second end is placed in contact or spaced facing relation a chill plate. The first end is contacted with molten material. The molten material is cooled and solidifies so that a crystalline structure of the seed propagates into the solidifying material. The forming further includes inserting the bent seed precursor into a sleeve leaving the bent seed precursor protruding from a first end of the sleeve.

公开(公告)号：US12030111B2

公开(公告)日：2024-07-09

申请号：US18072571

申请日：2022-11-30

Applicant: GE INFRASTRUCTURE TECHNOLOGY LLC

Inventor： Anthony Mark Thompson ,  Derek MacDormand

IPC: B22D27/04 ,  B22C9/06 ,  B22C9/08

CPC classification number: B22C9/065 ,  B22C9/082 ,  B22D27/045

Abstract: A directional solidification casting method includes fluidly coupling a feed line conduit with a source of molten metal and with a directional solidification mold at a gating. The mold has an interior chamber with a shape of an object to be cast using directional solidification in a growth direction. The feed line conduit is fluidly coupled with the gating in a downward direction oriented at an angle that is closer to the growth direction of the mold than to another direction that is perpendicular to the growth direction of the mold. The method also includes positioning a downstream portion of the feed line conduit below the gating, directing the molten metal into the mold via the feed line conduit, and casting the object in the mold using directional solidification.

公开(公告)号：US11878344B2

公开(公告)日：2024-01-23

申请号：US17836242

申请日：2022-06-09

Applicant: XI'AN JIAOTONG UNIVERSITY

Inventor： Shengqiang Ma ,  Ping Lv ,  Pengjia Guo ,  Jiandong Xing ,  Xu Tan ,  Shasha Fu

IPC: B22D27/04 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C21C7/06 ,  C22C33/06 ,  C22C38/24 ,  B22D29/00

CPC classification number: B22D27/045 ,  C21C7/06 ,  C22C33/06 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/28 ,  C22C38/32 ,  B22D29/00

Abstract: Disclosed are a high-boron high-vanadium high-speed steel and a method for preparing the same. Pig iron, scrap steel, ferrochromium, ferromanganese, ferroboron, ferrovanadium, industrial pure iron, ferromolybdenum, ferrotungsten, ferrosilicon and ferrotitanium are subjected to smelting at 1580-1600° C. and refining to obtain a liquid steel. The liquid steel is subjected to superheating, and directional solidification at a casting temperature of 1420-1430° C., and cooled to room temperature to obtain the directionally solidified high-speed steel.

公开(公告)号：US11878338B2

公开(公告)日：2024-01-23

申请号：US17610954

申请日：2020-04-03

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Serge Alain Fargeas ,  Nicolas Romain Benjamin Leriche

IPC: B22D27/04 ,  B22C9/00 ,  B22C9/06 ,  C30B11/00 ,  C30B29/52

CPC classification number: B22C9/06 ,  B22D27/045 ,  C30B11/002 ,  C30B29/52

Abstract: A mould for use in manufacturing a single-crystal component by metal casting and epitaxial growth, includes a cavity in which the component is to be formed and a housing having an elliptical cross-section in which a single-crystal seed is disposed, the seed having an elliptical cross-section defined by a minor axis and by a major axis, the housing being in fluid communication with the cavity via an opening of circular cross-section through which molten metal is to flow, the single-crystal seed and the opening being centred on the same vertical axis, in which the minor axis and the major axis of the cross-section of the seed are oriented as a function of the secondary crystallographic orientations of the single-crystal forming the single-crystal seed.

公开(公告)号：US11808529B2

公开(公告)日：2023-11-07

申请号：US16271267

申请日：2019-02-08

Applicant: United Technologies Corporation

Inventor： Michael A. Disori ,  Steven J. Bullied ,  Ryan C. Breneman ,  John Marcin ,  David J. Hyland ,  William P. Stillman ,  Carl R. Verner

IPC: F28F1/26 ,  B22D27/04

CPC classification number: F28F1/26 ,  B22D27/045

Abstract: A cast part includes an outermost wall, at least one inner wall defining at least two internal passages and at least one cast cooling fin extending from an outer surface. The cooling fin includes a ratio of fin height to an average fin thickness that is greater than 2.0 and no more than 18.0. A method is also disclosed.

公开(公告)号：US11806780B2

公开(公告)日：2023-11-07

申请号：US17490399

申请日：2021-09-30

Applicant: Raytheon Technologies Corporation

Inventor： Dilip M. Shah ,  Shiela R. Woodard ,  Steven J. Bullied ,  Ryan C. Breneman

IPC: B22D27/04 ,  C30B11/14 ,  B22D21/02

CPC classification number: B22D27/045 ,  B22D21/025 ,  C30B11/14

Abstract: A casting method includes: forming a seed, the seed having a first end and a second end, the forming including bending a seed precursor; placing the seed second end in contact or spaced facing relation with a chill plate; contacting the first end with molten material; and cooling and solidifying the molten material so that a crystalline structure of the seed propagates into the solidifying material. The forming further included reducing a thickness of the seed proximate the first end relative to a thickness of the seed proximate the second end.

公开(公告)号：US20190218646A1

公开(公告)日：2019-07-18

申请号：US16336534

申请日：2017-06-08

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Kazuaki TODA

IPC: C22C9/00 ,  B32B15/01 ,  B22D19/16 ,  B22D27/04 ,  F16C33/12 ,  F16C33/14

CPC classification number: C22C9/00 ,  B22D13/02 ,  B22D19/00 ,  B22D19/16 ,  B22D27/04 ,  B22D27/045 ,  B32B15/015 ,  C22C1/00 ,  C22C1/02 ,  C22C9/01 ,  C22C9/02 ,  C22C9/04 ,  C22C9/05 ,  C22C9/06 ,  C22C9/10 ,  F16C33/12 ,  F16C33/121 ,  F16C33/14 ,  F16C2204/18

Abstract: Provided are a slide material in which the joining strength between a Bi-containing copper alloy layer and a substrate is improved, and a method for manufacturing the slide material. The slide material according to the present invention has a substrate and a copper alloy layer. The copper alloy layer comprises a copper alloy containing 4.0-25.0 mass % of Bi and has a structure in which Bi phases are scattered in a copper alloy structure. The contact area ratio of Bi phases of the copper alloy layer at the joining interface with the substrate is not more than 2.0%. The slide material is manufactured by casting a molten copper alloy onto a substrate and causing the copper alloy to solidify unidirectionally.

公开(公告)号：US20180333772A1

公开(公告)日：2018-11-22

申请号：US16049053

申请日：2018-07-30

Applicant: United Technologies Corporation

Inventor： Dilip M. Shah ,  Alan D. Cetel

IPC: B22D25/02 ,  B22D19/16 ,  B22D21/02 ,  B22D21/06 ,  B22D27/04 ,  C22C19/05 ,  F01D5/14 ,  F01D5/28

CPC classification number: B22D25/02 ,  B22D19/16 ,  B22D21/025 ,  B22D21/06 ,  B22D27/045 ,  C22C19/057 ,  F01D5/14 ,  F01D5/147 ,  F01D5/28 ,  F05D2220/30 ,  F05D2230/21 ,  F05D2230/211 ,  F05D2300/131 ,  F05D2300/132 ,  F05D2300/133 ,  F05D2300/135 ,  F05D2300/17 ,  F05D2300/606 ,  F05D2300/609 ,  Y10T403/478

Abstract: A blade has an attachment root and an airfoil, the airfoil having a proximal end and a distal end. The blade has a compositional variation along the airfoil.

公开(公告)号：US10018203B2

公开(公告)日：2018-07-10

申请号：US14436277

申请日：2013-08-28

Applicant: UACJ Corporation

Inventor： Koichi Takahashi ,  Toshio Ushiyama

IPC: F04D29/28 ,  C22F1/057 ,  C22C21/16 ,  F04D29/02 ,  B22D21/00 ,  B22D25/02 ,  B22D17/00 ,  C22C21/18 ,  C22C21/14 ,  B22C9/22 ,  B22D27/04 ,  C22C21/08 ,  C22F1/00 ,  F02B33/40

CPC classification number: F04D29/28 ,  B22C9/22 ,  B22D17/005 ,  B22D21/007 ,  B22D25/02 ,  B22D27/045 ,  C22C21/08 ,  C22C21/14 ,  C22C21/16 ,  C22C21/18 ,  C22F1/00 ,  C22F1/057 ,  F02B33/40 ,  F04D29/023

Abstract: An aluminum alloy cast impeller has a stable high-temperature strength (e.g., 0.2% proof stress value of 260 MPa or more) at about 200° C. A boss part, blade parts, and a disc part have secondary dendrite arm spacings of 20 to 50 μm, 10 to 35 μm, and 5 to 25 μm, respectively, and satisfy the relationship Amax>Bmax>Cmax, where Amax, Bmax, and Cmax are the maximum values of the secondary dendrite arm spacings of the boss part, the blade parts, and the disc part, respectively. During casting, Al alloy molten metal is pressure injected into a 200 to 350° C. plaster mold. A 100 to 250° C. chill occurs on a surface in contact with an impeller disc surface, so that the chill temperature (° C.)

公开(公告)号：US09975175B2

公开(公告)日：2018-05-22

申请号：US14761569

申请日：2013-10-11

Applicant: General Electric Company

Inventor： Douglas Gerard Konitzer ,  James Herbert Deines ,  Brian David Przeslawski ,  Xi Yang

IPC: B22C9/04 ,  B22C9/22 ,  B22C7/02 ,  B22D25/02 ,  B22D27/04 ,  B29C67/00 ,  B29L31/08

CPC classification number: B22D25/02 ,  B22C7/02 ,  B22C9/04 ,  B22C9/22 ,  B22D27/045 ,  B29C64/00 ,  B29L2031/08 ,  Y02P10/292

Abstract: A method of casting a truss structure having spaced face sheets connected by columnar structures, including forming a three-dimensional pattern (3D pattern) in the shape of the truss structure with the spaced face sheets and columnar structures, forming a mold core of the 3D pattern by surrounding the pattern with a liquid and letting the liquid harden about the 3D pattern, removing the 3D pattern from the mold core, filling the mold core with a liquid alloy to cast and directionally solidify the truss structure.