公开(公告)号：US12186801B2

公开(公告)日：2025-01-07

申请号：US15513694

申请日：2015-09-25

Applicant: PYROTEK, INC.

Inventor： Jon Tipton ,  Andrew Horsfall ,  Jay Fritzke ,  Richard S. Henderson

IPC: B22D39/04 ,  B22D13/02 ,  B22D13/10 ,  B22D13/12 ,  B22D17/08 ,  B22D17/20 ,  B22D17/30 ,  B22D17/32 ,  B22D35/04 ,  F04D7/06 ,  F04D15/00

Abstract: A molding machine for molding material is provided. The machine includes a cavity to be filled with molten metal and a conduit system leading to the cavity, thus forming a system of interconnected hollow spaces. At least one pressure member is moveable in at least part of the conduit system. A centrifugal pump in fluid communication with a reservoir of molten metal is provided, the pump providing molten metal to the hollow space receiving the at least one pressure member.

公开(公告)号：US11491536B1

公开(公告)日：2022-11-08

申请号：US17690541

申请日：2022-03-09

Applicant: United States Pipe and Foundry, LLC

Inventor： Kenneth J Watts ,  Stephanie R Holtz

IPC: B22D13/12 ,  B22D13/02

Abstract: A method and apparatus for providing an estimate of uniformity of wall thickness of a centrifugally cast object, such as a pipe cast from molten iron, substantially immediately after the casting process is complete. The volume of molten metal entering the mold over time is determined and correlated with casting machine position and velocity data to estimate wall thickness along the length of the pipe. Process defects can then be identified promptly and corrective action taken.

公开(公告)号：US11433453B2

公开(公告)日：2022-09-06

申请号：US16761998

申请日：2018-11-06

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Laurent Ferrer

IPC: B22D27/02 ,  B22D13/06 ,  B22D13/02 ,  B22D21/00

Abstract: A device (10) for manufacturing a metal alloy blank by centrifugal casting of a molten metal alloy, comprising a centrifugal casting wheel (20), the centrifugal casting wheel (20) being rotary about an axis of rotation (A) and comprising a mold (22) for receiving the molten metal alloy, the mold extending in a radial direction (R1) with respect to the axis of rotation (A). The device (10) comprises at least one magnet arranged in such a way as to induce an electric current in the mold (22) during the rotation of the centrifugal casting wheel (20) about the axis of rotation (A).

公开(公告)号：US10947611B2

公开(公告)日：2021-03-16

申请号：US16466398

申请日：2017-12-26

Applicant: KUBOTA CORPORATION

Inventor： Hiroyuki Kimura ,  Yutaka Tsujimoto ,  Shuhei Yamamoto

IPC: C22C38/56 ,  B21B27/02 ,  B22D19/16 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/54 ,  C22C38/34 ,  C22C38/58 ,  B22D13/02

Abstract: The present invention provides a composite roll for rolling including an outer layer having excellent wear resistance, surface roughening resistance, crack resistance, and accident resistance due to segregation of MC carbides being suppressed to adjust the amount of graphite to be crystallized. The composite roll for rolling of the present invention is a composite roll for rolling that has an outer layer and is produced through centrifugal casting, and the outer layer contains C in an amount of 2.2 mass % to 3.2 mass %, Si in an amount of 1.0 mass % to 3.0 mass %, Mn in an amount of 0.3 mass % to 2.0 mass %, Ni in an amount of 3.0 mass % to 7.0 mass %, Cr in an amount of 0.5 mass % to 2.5 mass %, Mo in an amount of 1.0 mass % to 3.0 mass %, V in an amount of 2.5 mass % to 5.0 mass %, Nb in an amount of more than 0 mass % and 0.5 mass % or less, and a remaining portion including Fe and inevitable impurities, and a condition (a): Nb mass %/V mass %

公开(公告)号：US20200336056A1

公开(公告)日：2020-10-22

申请号：US16388515

申请日：2019-04-18

Applicant: SF Motors, Inc.

Inventor： Justin Chen ,  Zhichun Ma ,  Duanyang Wang ,  Yifan Tang ,  Yin Wang

IPC: H02K17/16 ,  B60L50/51 ,  B22D19/00 ,  H02K15/00 ,  B22D13/02 ,  H02K7/00

Abstract: Provided herein are systems, apparatuses, and methods of providing a centrifugally cast rotor assembly for an induction motor of an electric vehicle. The rotor assembly includes a rotor lamination stack with a cylindrical shape that terminates in a first end surface and a second end surface. The rotor lamination stack has multiple lamination discs, and each lamination disc has multiple rotor slots. The rotor assembly further includes copper bars disposed within the rotor slots, a first intermediary end ring disposed at the first end surface, and a second intermediary end ring disposed at the second end surface. A centrifugally cast first copper end ring that electrically and mechanically couples each of the copper bars is located proximate the first end surface, and a centrifugally cast second copper end ring that electrically and mechanically couples each of the copper bars is located proximate the second end surface.

公开(公告)号：US10799948B2

公开(公告)日：2020-10-13

申请号：US16278736

申请日：2019-02-19

Applicant: University of Science and Technology Beijing

Inventor： Zidong Wang ,  Tao Wang ,  Xiaohua Chen

IPC: B22D27/08 ,  B22D27/04 ,  B22D13/02 ,  B22D21/00

Abstract: A method and apparatus cast a material with nano-micro duplex grain structure. The apparatus includes module system, heating system casting mold and gating system, multiaxial compound motion system accompanied by the following technological characteristics; alloy smelting; after heat preservation, alloy melt is poured into the casting mold which is put into the centrifugal barrel of the six-axis motion system; then the casting mold carries out composite motion and the alloy melt starts solidification; as a result, casting Al—Si alloy block with multi-scale nano-structure includes nano-micro duplex grain group is prepared.

公开(公告)号：US20200316682A1

公开(公告)日：2020-10-08

申请号：US16761998

申请日：2018-11-06

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Laurent FERRER

IPC: B22D27/02 ,  B22D13/06 ,  B22D21/00 ,  B22D13/02

Abstract: A device (10) for manufacturing a metal alloy blank by centrifugal casting of a molten metal alloy, comprising a centrifugal casting wheel (20), the centrifugal casting wheel (20) being rotary about an axis of rotation (A) and comprising a mold (22) for receiving the molten metal alloy, the mold extending in a radial direction (R1) with respect to the axis of rotation (A).The device (10) comprises at least one magnet arranged in such a way as to induce an electric current in the mold (22) during the rotation of the centrifugal casting wheel (20) about the axis of rotation (A).

公开(公告)号：US10661335B2

公开(公告)日：2020-05-26

申请号：US15610764

申请日：2017-06-01

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Seong Lee ,  Seong-Ho Yang ,  Lee-Ju Park ,  Hak-Jun Kim ,  Hyoung-Seop Kim ,  See-Am Lee ,  Ho-Yong Um

IPC: B21D22/16 ,  B22D13/02 ,  B21D51/10 ,  B21D22/02 ,  B21D31/00 ,  B22F3/00 ,  B22F5/00 ,  B22F5/10 ,  E21B43/12 ,  E21B43/26

Abstract: In a localized torsional severe plastic deformation method for conical tube metal, a desired region of a conical tube metal can be subjected to severe plastic deformation using molds in which roughness is formed at predetermined regions. The method includes roughening a predetermined region of each of the molds; sticking the conical tube metal only to the roughened regions of the molds; moving the lower mold toward the upper mold to apply a load to the conical tube metal; and rotating the molds to apply severe plastic deformation to the conical tube metal only at the regions stuck to the roughened regions of the molds.

公开(公告)号：US10456768B2

公开(公告)日：2019-10-29

申请号：US15999414

申请日：2018-08-20

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： ChangMin Chun ,  Jorge J. Perdomo

IPC: B01J19/00 ,  C10G9/20 ,  C22C30/00 ,  C22C19/05 ,  C22C38/48 ,  C22C38/00 ,  C22C38/06 ,  B01J19/02 ,  B22D13/00 ,  C10G9/36 ,  C23C8/10 ,  F16L58/08 ,  F16L9/02 ,  C22C38/40 ,  C22C38/44 ,  B22D13/02 ,  C22C38/04 ,  C22C38/38 ,  C22C38/46 ,  C22C38/54 ,  C21D9/08

Abstract: This application relates to a heat transfer tube, its method of manufacture and its use for thermal cracking hydrocarbon feeds, such as thermal cracking in furnaces. The heat transfer tube comprises a chromium and aluminum carburization-resistant alloy capable of generating a typically continuous aluminum oxide scale under thermal cracking conditions that reduces coking and thereby enhances heat transfer. The carburization-resistant alloy comprises 25.1 to 55.0 wt. % nickel; 18.1 to 23.9 wt. % chromium; 4.1 to 7.0 wt. % aluminum; and iron. Additionally, the carburization-resistant alloy has at least one strengthening mechanism to provide desirable mechanical properties. The carburization-resistant alloy composition is also resistant to the formation of cracks during centrifugal casting.

公开(公告)号：US10376952B2

公开(公告)日：2019-08-13

申请号：US15120675

申请日：2015-02-25

Applicant: HITACHI METALS, LTD.

Inventor： Masatsugu Uchida ,  Kiyoshi Furushima

IPC: B22D13/02 ,  B22D21/00 ,  B22D21/06 ,  B22D23/06 ,  B22F1/00 ,  B29C33/38 ,  C22C19/05 ,  C22C32/00 ,  B22D17/20 ,  B22D19/08 ,  B29C45/62 ,  C22C19/00 ,  C22C19/03 ,  C22C29/08 ,  B29C48/68 ,  B29L31/00

Abstract: A molding machine cylinder comprising a lining layer having a structure comprising 20-50% by area of tungsten carbide particles and 1-10% by area of tungsten-based metal carboboride particles in a nickel-based alloy matrix, and containing 1-7.5% by mass of Fe, can be produced by a centrifugal casting method comprising a first step of heating at higher than 1140° C. and lower than 1200° C., and a second step of heating at 1080-1140° C. after melting the raw material powder.