公开(公告)号：US20220379371A1

公开(公告)日：2022-12-01

申请号：US17640171

申请日：2020-09-04

申请人： SAFRAN AIRCRAFT ENGINES

发明人： Nicolas Romain Benjamin LERICHE ,  Serge Alain FARGEAS ,  Fabien CORPACE

IPC分类号： B22D27/20

摘要： The present invention concerns a method for manufacturing a metal workpiece by casting a metal alloy in a mould, wherein prior to the casting, a chart is determined providing a risk of appearance of recrystallised grains during the casting/solidification of the metal workpiece, depending on temperature and plastic deformation energy conditions undergone by said metal workpiece, the casting of the metal alloy in the mould being implemented under casting and solidification conditions determined using the chart in order for the temperature and plastic deformation energy conditions undergone by the metal workpiece to be less than a given threshold for the risk of appearance of recrystallised grains.

公开(公告)号：US10920301B2

公开(公告)日：2021-02-16

申请号：US15565940

申请日：2016-04-14

申请人： Nippon Light Metal Company, Ltd. ,  Honda Motor Co., Ltd.

发明人： Izumi Yamamoto ,  Kazuhiro Oda ,  Hisayasu Kojima ,  Naoko Sato ,  Ryo Wakabayashi ,  Akito Tanihata

IPC分类号： C22C21/02 ,  B22D27/04 ,  B22D27/20 ,  C22F1/043 ,  B22D21/00 ,  F02F3/00 ,  C22F1/00 ,  B22D17/00 ,  C22C21/04

摘要： An aluminum alloy casting excellent in high temperature strength and thermal conductivity, a method of producing the same, and an aluminum alloy piston for internal combustion engine using this casting. An aluminum alloy casting having a chemical composition comprising Si: 12.0 to 13.5 mass % Cu: 4.5 to 5.5 mass % Mg: 0.6 to 1.0 mass % Ni: 0.7 to 1.3 mass % Fe: 1.15 to 1.25 mass % Ti: 0.10 to 0.2 mass % P: 0.004 to 0.02 mass % and a balance of Al and unavoidable impurities, wherein in an observed field of view of 0.2 mm2, the major axis length of the Al—Fe—Si based crystallites is 100 μm or less by average length of 10 crystallites from the largest down. The method for producing the casting comprising casting a melt of aluminum alloy having the above chemical composition at cooling rate of 100° C./sec or more, then performing aging treatment.

公开(公告)号：US20200283859A1

公开(公告)日：2020-09-10

申请号：US16330104

申请日：2017-08-31

申请人： TOHOKU UNIVERSITY ,  KABUSHIKI-KAISHA FACT

发明人： Masayuki ITAMURA ,  Haruki ITOFUJI ,  Mitsuru ADACHI

IPC分类号： C21C1/10 ,  B22D27/20 ,  B22D1/00 ,  C22C37/04 ,  C22C33/10 ,  B22D27/04

摘要： The present invention provides a casting method and cast product of spherical graphite cast iron, in which, even with a small modulus, there is no chill, the spherical graphite in the tissue is further made ultrafine, the dispersion of the particle diameter is small, and the number of the particles is several times that of the conventional one in the as cast state where heat treatment is not carried out.A casting method of a spherical graphite cast iron comprised from, a melting process, a spheroidizing treatment process, an inoculation process, and a casting process, in which the original molten metal after the inoculation process is poured and filled up to a product space through a gate of a metal mold; wherein the original molten metal before being filled up to the product space is controlled to a semi-solidification temperature range. An amount of nitrogen at the time of melting of the (cast iron?) is controlled to 0.9 ppm (mass) or less. The casting process is carried out by controlling the pouring temperature and the heat removal amount from the molten metal so that the temperature of the raw material when passing through the gate becomes a substantially constant temperature between an eutectic temperature and a liquidus temperature.

公开(公告)号：US10507521B2

公开(公告)日：2019-12-17

申请号：US15477769

申请日：2017-04-03

申请人： ROLLS-ROYCE PLC

发明人： Martin R Perry ,  Kevin Goodwin ,  Neil Dsouza

IPC分类号： B22D27/04 ,  B22D27/20 ,  B22C9/04 ,  C30B11/00 ,  C30B29/52 ,  B22C9/00 ,  B22C9/22 ,  B22C9/08

摘要： A mould for casting a component in a directional solidification casting process having a preferred direction of grain growth (non-axial ) comprises a shell defining a cavity for receiving molten material. The cavity defines a three dimensional shape made up of a finished component geometry portion (42, 43, 44) and a sacrificial geometry portion (45) wherein the sacrificial geometry portion (45) includes a notch (48) which is shaped and positioned so as to, in use, contain high angle grain boundaries between dendritic growth in the preferred direction (non-axial ) and dendritic growth in a competing direction to the preferred direction (axial ) within the sacrificial geometry portion of a casting solidifying in the mould.

公开(公告)号：US20190316232A1

公开(公告)日：2019-10-17

申请号：US16455897

申请日：2019-06-28

申请人： CONSTELLIUM ISSOIRE

发明人： Bernard Bes

IPC分类号： C22C21/16 ,  B22D27/20 ,  C22C21/14 ,  C22C21/12 ,  B64C3/26 ,  C22F1/057 ,  B22D21/00 ,  C22F1/04

摘要： The invention relates to a rolled product with state T351, having thickness of between 15 and 50 mm, made from aluminium alloy having the following composition, in % by weight, Cu: 3.85-4.15; Mg: 0.95-1.25; Mn: 0.45-0.57; Zr: 0.09-0.16; Ti: 0.005-0.1; Fe:

公开(公告)号：US10421121B2

公开(公告)日：2019-09-24

申请号：US15661513

申请日：2017-07-27

申请人： IHI CORPORATION

发明人： Shigeyuki Satoh ,  Yoshiki Kato ,  Tatsuya Sekiguchi

IPC分类号： B22D27/20 ,  B22D21/00 ,  C22C1/02 ,  C22C19/05 ,  F04D29/38 ,  F01D5/28 ,  B22D27/04

摘要： A method of manufacturing a Ni alloy casting, includes a casting step of casting molten Ni alloy by pouring the molten Ni alloy into a cavity of a mold, a columnar grain forming step of forming columnar grain by solidifying the molten Ni alloy while drawing the mold, in which the molten Ni alloy has been poured, at a drawing speed of 100 mm/hour or more but 400 mm/hour or less with a temperature gradient provided to a solid-liquid interface, and an equiaxed grain forming step of forming equiaxed grain by solidifying the molten Ni alloy while drawing the mold at a drawing speed of 1000 mm/minute or more continuously after the columnar grain forming step.

公开(公告)号：US20190111467A1

公开(公告)日：2019-04-18

申请号：US16080163

申请日：2017-05-29

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： Keisuke Tanaka ,  Daisuke Oya ,  Mikio Ishihara ,  Tatsuya Iwasa ,  Koji Saito ,  Yuki Wakabayashi

IPC分类号： B22C3/00 ,  B22D19/00 ,  B22D27/20 ,  H01L23/14 ,  H01L23/373 ,  H05K1/02

摘要： In a semiconductor-mounting heat dissipation base plate including: an insulating substrate to which a metal circuit layer for mounting a semiconductor chip thereon is fixed; a heat dissipation base formed from the same metal material as the metal circuit layer at a side opposite to the metal circuit layer across the insulating substrate and fixed to the insulating substrate similar to the metal circuit layer; and a strengthening member provided in the heat dissipation base so as to be separated from the insulating substrate, the sizes of crystal grains of a metal structure at a part of the heat dissipation base or the metal circuit layer are reduced by a crystal size reducing material adhered to a mold, thereby preventing an adverse effect of a columnar crystal structure.

公开(公告)号：US20170320132A1

公开(公告)日：2017-11-09

申请号：US15477769

申请日：2017-04-03

申请人： ROLLS-ROYCE PLC

发明人： Martin R. PERRY ,  Kevin GOODWIN ,  Neil DSOUZA

IPC分类号： B22D27/04 ,  B22D27/20 ,  B22C9/22 ,  B22C9/08 ,  B22C9/00

CPC分类号： B22D27/045 ,  B22C9/00 ,  B22C9/04 ,  B22C9/082 ,  B22C9/22 ,  B22D27/20 ,  C30B11/002 ,  C30B29/52 ,  F05D2230/21

摘要： A mould for casting a component in a directional solidification casting process having a preferred direction of grain growth (non-axial ) comprises a shell defining a cavity for receiving molten material. The cavity defines a three dimensional shape made up of a finished component geometry portion (42, 43, 44) and a sacrificial geometry portion (45) wherein the sacrificial geometry portion (45) includes a notch (48) which is shaped and positioned so as to, in use, contain high angle grain boundaries between dendritic growth in the preferred direction (non-axial ) and dendritic growth in a competing direction to the preferred direction (axial ) within the sacrificial geometry portion of a casting solidifying in the mould.

公开(公告)号：US09764382B2

公开(公告)日：2017-09-19

申请号：US15115218

申请日：2015-01-28

申请人： Safran Aircraft Engines

发明人： Guillaume Martin ,  Serge Fargeas ,  Marc Soisson ,  Valéry Piaton

IPC分类号： B22D13/10 ,  B22D27/20

CPC分类号： B22D13/102 ,  B22D13/101 ,  B22D27/20

摘要： The invention concerns a unit comprising a mold (4) adapted to receive a molten metal alloy and the said metal alloy poured therein. The alloy is TiAl. The mold is rotational and comprises receiving recesses (135) made of steel, metal alloy and/or ceramic, and, at the location of a plurality of section planes each passing through the mold and the poured metal alloy, the mold has a surface heat capacity less than that of the poured metal alloy.

公开(公告)号：US20170252799A1

公开(公告)日：2017-09-07

申请号：US15337645

申请日：2016-09-09

申请人： SOUTHWIRE COMPANY

发明人： Kevin GILL ,  Michael Caleb POWELL ,  Victor Frederic RUNDQUIST ,  Venkata Kiran MANCHIRAJI ,  Roland Earl GUFFEY

IPC分类号： B22D11/12 ,  B22D21/00 ,  B22D11/06 ,  B22D27/20

CPC分类号： B22D11/12 ,  B22D11/0611 ,  B22D11/0651 ,  B22D11/114 ,  B22D11/124 ,  B22D11/144 ,  B22D21/007 ,  B22D27/20 ,  C22B9/026 ,  C22F3/02

摘要： A molten metal processing device including an assembly mounted on the casting wheel, including at least one vibrational energy source which supplies vibrational energy to molten metal cast in the casting wheel while the molten metal in the casting wheel is cooled, and a support device holding the vibrational energy source. An associated method for forming a metal product which provides molten metal into a containment structure included as a part of a casting mill, cools the molten metal in the containment structure, and couples vibrational energy into the molten metal in the containment structure.