-
公开(公告)号：US11708770B2
公开(公告)日：2023-07-25
申请号：US17594369
申请日：2020-04-13
Applicant: General Electric Company
Inventor： Krzysztof Dynak , Sharon Trombly Swede , Junyoung Park , Marek Miekus , Tomasz Michal Szewczyk , Robert Lebkowski
CPC classification number: F01D25/005 , B23P6/007 , F01D11/08 , F01D25/24 , F05D2230/31 , F05D2230/80 , F05D2300/111 , F05D2300/171
Abstract: A casing component is configured to form part of a flow path in a turbine. The casing component includes a base made of nodular cast iron, and a repaired region in the base. The repaired region includes a butter layer applied on the base and a fill layer applied on the butter layer.
-
公开(公告)号：US20210214826A1
公开(公告)日：2021-07-15
申请号：US16739659
申请日：2020-01-10
Applicant: General Electric Company
Inventor： Junyoung Park , Ibrahim Ucok
Abstract: Systems and methods for altering microstructures of materials are disclosed. The system may include at least one computing device in communication with a heating device and an electromagnetic device. The computing device(s) may be configured to alter a microstructure of a material forming a component by performing processes including heating the component using the heating device to a predetermined temperature. The predetermined temperature may be below a first phase-transformation temperature based on the material forming the component, and a second phase-transformation temperature based on the material forming the component, where the second phase-transformation temperature greater than the first phase-transformation temperature. The computing device(s) may also perform processes including intermittently magnetizing the heated component using the electromagnetic device for a predetermined number of cycles, and cooling the component after intermittently magnetizing the heated component.
-
公开(公告)号：US10046382B2
公开(公告)日：2018-08-14
申请号：US14081116
申请日：2013-11-15
Applicant: General Electric Company
Inventor： Qi Zhao , Steven Robert Hayashi , Brian Victor Moore , Daniel Tribeni Persaud , Michael Douglas Arnett , Junyoung Park
Abstract: A method of casting a low alloy steel using a mold is disclosed. The method includes receiving the mold having a foam pattern disposed within a sand casing. The received foam pattern is coated with a permeable refractory coating and is disposed between compacted sand and the sand casing. The method further includes pouring a molten metal comprising a low alloy steel having a carbon content in a range from about 0.1 to about 0.4 percent into the mold so as to vaporize the foam pattern and remove gasification products through the permeable refractory coating, to form a low alloy steel casting. Further, the method includes removing the low alloy steel casting from the mold.
-
公开(公告)号：US20170173668A1
公开(公告)日：2017-06-22
申请号：US15442806
申请日：2017-02-27
Applicant: General Electric Company
Inventor： Zhaoping Wu , Brian Victor Moore , Michael Douglas Arnett , Dejia Wang , Junyoung Park , Yanfei Gu , Qi Zhao
CPC classification number: B22C7/023 , B01J23/002 , B01J23/10 , B01J2523/00 , B22C3/00 , B22C9/046 , B01J2523/25 , B01J2523/3712 , B01J2523/48
Abstract: Refractory slurry for use in coating a foam cluster to provide a foam pattern for lost foam casting is provided. The slurry includes a catalyst capable of catalyzing reactions for vaporizing the foam cluster. A foam pattern with a refractory coating including the catalyst and processes for preparing the foam pattern and using the foam pattern are also provided.
-
Patent Agency Ranking
公开(公告)号：US10662510B2
公开(公告)日：2020-05-26
申请号：US15142732
申请日：2016-04-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Junyoung Park , Brian Victor Moore
Abstract: A ductile iron composition including, by weight: about 3.1% to about 3.6% C; about 3.5% to about 4.0% Si; about 0.035% to about 0.050% Mg; about 0.001% to about 0.004% Ce; up to about 0.005% Sb; about 0.008% to about 0.016% S; up to about 0.04% P; up to about 0.3% Mn; and balance iron and incidental impurities; The ductile iron composition includes a ratio of Sb/Ce greater than or equal to about 1.25, has a ferritic microstructure and graphite nodules, and greater than about 65% of the graphite nodules having a highly spherical geometry. A method and apparatus for forming a ductile iron composition are also disclosed.
-
公开(公告)号：US20150139850A1
公开(公告)日：2015-05-21
申请号：US14081116
申请日：2013-11-15
Applicant: General Electric Company
Inventor： Qi Zhao , Steven Robert Hayashi , Brian Victor Moore , Daniel Tribeni Persaud , Michael Douglas Arnett , Junyoung Park
Abstract: A method of casting a low alloy steel using a mold is disclosed. The method includes receiving the mold having a foam pattern disposed within a sand casing. The received foam pattern is coated with a permeable refractory coating and is disposed between compacted sand and the sand casing. The method further includes pouring a molten metal comprising a low alloy steel having a carbon content in a range from about 0.1 to about 0.4 percent into the mold so as to vaporize the foam pattern and remove gasification products through the permeable refractory coating, to form a low alloy steel casting. Further, the method includes removing the low alloy steel casting from the mold.
Abstract translation: 公开了一种使用模具铸造低合金钢的方法。 该方法包括接收具有布置在砂壳内的泡沫图案的模具。 接收的泡沫图案涂覆有可渗透的耐火涂层，并且设置在压实砂与砂壳之间。 该方法还包括将包含碳含量在约0.1至约0.4％范围内的低合金钢的熔融金属浇注到模具中，以便蒸发泡沫图案，并通过可渗透的耐火涂层去除气化产物，形成 低合金钢铸件。 此外，该方法包括从模具中去除低合金钢铸件。
-
公开(公告)号：US11466935B2
公开(公告)日：2022-10-11
申请号：US16739659
申请日：2020-01-10
Applicant: General Electric Company
Inventor： Junyoung Park , Ibrahim Ucok
Abstract: Systems and methods for altering microstructures of materials are disclosed. The system may include at least one computing device in communication with a heating device and an electromagnetic device. The computing device(s) may be configured to alter a microstructure of a material forming a component by performing processes including heating the component using the heating device to a predetermined temperature. The predetermined temperature may be below a first phase-transformation temperature based on the material forming the component, and a second phase-transformation temperature based on the material forming the component, where the second phase-transformation temperature greater than the first phase-transformation temperature. The computing device(s) may also perform processes including intermittently magnetizing the heated component using the electromagnetic device for a predetermined number of cycles, and cooling the component after intermittently magnetizing the heated component.
-
公开(公告)号：US10787726B2
公开(公告)日：2020-09-29
申请号：US15142323
申请日：2016-04-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Junyoung Park , Ibrahim Ucok
IPC: C22C37/10 , C21D5/14 , C21D5/00 , C21C1/10 , C22C33/06 , C22C33/10 , C22C37/04 , C22C37/06 , C21D9/32
Abstract: A ductile iron composition including, by weight: about 3.4% to about 4.0% Si; about 3.0% to about 3.5% C; about 0.5% to about 1.0% Cr; about 0.02% to about 0.05% Mo; up to about 0.01% S; up to about 0.5% Mn; and balance iron and incidental impurities. The composition has a a ferritic body center cubic microstructure and has a graphite nodule density of greater than 100 per mm2. A method for forming a ductile iron composition is also disclosed.
-
公开(公告)号：US09839958B2
公开(公告)日：2017-12-12
申请号：US15007941
申请日：2016-01-27
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Junyoung Park , Jason Robert Parolini , Ibrahim Ucok
CPC classification number: B22C9/043 , B22C7/02 , B22D27/02 , B22D27/04 , B22D27/045 , B22D27/08 , B22D27/20
Abstract: A method for making an equiaxed investment casting. The method utilizes an ultrasonic generator to send an ultrasonic pulse into molten metal in an investment casting mold. The investment casting mold is positioned within a working zone of furnace having low output induction coils for generating a convection current in molten metal. The ultrasonic pulse separates dendrites growing from the face of the mold inward into the molten metal. Instead, equiaxed grains can nucleate within the molten metal. In addition, the ultrasonic pulse and the low output induction coils circulate the molten metal as solute is rejected from solidifying equiaxed grains. The mixing reduces the effects of segregation in the solidifying alloy and assists in nucleating equiaxed grains.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.018 seconds)
