公开(公告)号：US11846000B2

公开(公告)日：2023-12-19

申请号：US16314152

申请日：2017-06-29

申请人： ELKEM ASA

发明人： Torbjorn Skaland ,  Emmanuelle Ott

IPC分类号： C21C1/10 ,  C22C37/10 ,  C22C38/02 ,  C22C33/10 ,  C22C33/08 ,  C22C38/00 ,  C22C33/06 ,  C22C38/06 ,  C22C28/00 ,  C22C30/00 ,  C22C37/04

CPC分类号： C21C1/105 ,  C21C1/10 ,  C22C28/00 ,  C22C30/00 ,  C22C33/06 ,  C22C33/08 ,  C22C33/10 ,  C22C37/04 ,  C22C37/10 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/06

摘要： An inoculant for manufacturing cast iron with lamellar, compacted or spheroidal graphite is disclosed. The inoculant has a particulate ferrosilicon alloy having 40 and 80% by weight of silicon, 0.5-5 wt % of calcium and/or strontium and/or barium, 0-10 wt % of rare earths, 0-5 wt % of magnesium, less than 5% by weight of aluminium, 0-10 wt % of manganese and/or zirconium, and the balance being iron, wherein the inoculant additionally contains 0.1-10 wt % of particulate bismuth oxide particles and optionally 0.1-10 wt % of one or more particulate metal sulphides and/or one or more particulate iron oxides, where the particulate bismuth oxide is mixed or blended with the ferrosilicon particles, or is simultaneously added to cast iron together with the particulate ferrosilicon particles.

公开(公告)号：US11712723B2

公开(公告)日：2023-08-01

申请号：US17762548

申请日：2020-10-16

申请人： PROTERIAL, LTD.

发明人： Yasunori Nozaki ,  Nozomu Oda ,  Toshiyuki Hattori

IPC分类号： B21B27/02 ,  C22C33/08 ,  C22C37/04 ,  C22C37/10 ,  B21B1/22 ,  B22D13/02

CPC分类号： B21B27/021 ,  C22C33/08 ,  C22C37/04 ,  C22C37/10 ,  B21B2001/225 ,  B22D13/02

摘要： A centrifugally cast composite roll for hot rolling comprising an outer layer made of an Fe-based alloy having a chemical composition comprising by mass 2.6-3.6% of C, 0.1-3% of Si, 0.3-2% of Mn, 2.3-5.5% of Ni, 0.5-3.2% of Cr, 0.3-1.6% of Mo, 1.8-3.4% of V, and 0.7-2.4% of Nb, 1.4≤V/Nb≤2.7, a V equivalent (Veq=V+0.55Nb) being 2.60-4% by mass, and the balance being Fe and impurities, and an inner layer made of an iron-based alloy and integrally fused to the outer layer.

公开(公告)号：US20220243294A1

公开(公告)日：2022-08-04

申请号：US17620660

申请日：2020-06-17

申请人： Francisco Alfonso LABRADOR RODRIGUEZ ,  Raymundo Eduardo STACKPOLE ARMENDARIZ

发明人： Francisco Alfonso LABRADOR RODRIGUEZ

IPC分类号： C21C1/10 ,  C22C37/04

摘要： Additive for the thermochemical treatment of molten iron in order to separate, distribute, agglomerate, precipitate, spheroidize and/or crystallize combined, solvated and/or colloidal carbon present in molten iron in the liquid state into graphite in its hexagonal diamond or Lonsdaleite form, in order to produce ductile, nodular, spheroidal, vermicular, coral, spheroidized or grey iron with superior mechanical properties, iron with high metal yield and zero contraction during casting; the additive comprises two or more elements in the metallic state selected from the S-block of periods 2 to 7 of the periodic table of elements; and two or more elements in the metallic state selected from F-block of periods 6 to 7 of the periodic table of elements. The additive makes it possible to produce cast iron parts with Type I and II spheroidal graphite in hexagonal diamond or Lonsdaleite form as per the ASTM-A247 standard.

公开(公告)号：US10662510B2

公开(公告)日：2020-05-26

申请号：US15142732

申请日：2016-04-29

申请人： GENERAL ELECTRIC COMPANY

发明人： Junyoung Park ,  Brian Victor Moore

IPC分类号： C22C37/10 ,  B22D1/00 ,  B22D41/00 ,  C21C1/10 ,  C22C33/06 ,  C22C33/10 ,  C22C37/04 ,  F27B17/00

摘要： 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：US10371085B2

公开(公告)日：2019-08-06

申请号：US15481501

申请日：2017-04-07

申请人： ZYNP International Corp.

发明人： Xiaocai Qin

IPC分类号： F02F1/00 ,  C22C37/10 ,  C22C37/04

摘要： A high strength cast iron material for application in heavy duty diesel engines with Pa peak cylinder pressure greater than 240 bar is disclosed, the material a ductile material austempered to get a ausferrite matrix structure with higher mechanical properties than conventional cast iron materials available by using a designed low cost alloying cast material with heat treatment. Furthermore, the cylinder liner may be formed using novel heat treatment and/or fine honing processes to improve the properties thereof.

公开(公告)号：US10294550B2

公开(公告)日：2019-05-21

申请号：US15125477

申请日：2015-02-06

申请人： Doosan Infracore Co., Ltd.

发明人： Young-Kyu Ju ,  Ki-Hwan Jung ,  Jong-Kwon Chung ,  Sik Yang ,  Jae-Hyoung Hwang ,  Dong-Seob Shim ,  Sang-Beom Kim

IPC分类号： C22C37/10 ,  C22C37/06 ,  C22C33/08 ,  G01N25/00 ,  B22D25/02 ,  F01N13/14 ,  G01N33/20 ,  H01J49/26 ,  B22D17/00 ,  C22C37/04 ,  G01N33/205 ,  C22C33/04 ,  C21C1/10 ,  C21D5/00

摘要： Heat resistant spheroidal graphite cast iron having an improved high temperature tensile strength includes carbon (C) in a range of 3.2-3.4 wt %, silicon (Si) in a range of 4.3-4.8 wt %, manganese (Mn) in a range of 0.2-0.3 wt %, molybdenum (Mo) in a range of 0.8-1.0 wt %, vanadium (V) in a range of 0.4-0.6 wt %, chrome (Cr) in a range of 0.2-0.4 wt %, niobium (Nb) in a range of 0.2-0.4 wt %, inevitable impurities, and a remainder of iron (Fe) based on a total weight of the heat resistant spheroidal graphite cast iron. The heat resistant spheroidal graphite cast iron further includes barium (Ba) in a range of 0.0045-0.0075 wt %. A content ratio of chrome (Cr) and barium (Ba) (Cr/Ba) is in a range from about 26 to about 89.

公开(公告)号：US10077488B2

公开(公告)日：2018-09-18

申请号：US14929078

申请日：2015-10-30

申请人： Toshiba Kikai Kabushiki Kaisha

发明人： Ryousuke Fujimoto ,  Takumi Hareyama

IPC分类号： C22C37/00 ,  C22C37/04 ,  C21D5/00 ,  C22C37/10 ,  C22C33/08

CPC分类号： C22C37/04 ,  C21D5/00 ,  C22C33/08 ,  C22C37/00 ,  C22C37/10

摘要： A high-strength, high-damping-capacity cast iron having both a high strength and high vibration damping capacity is provided.The high-strength, high-damping-capacity cast iron is obtained by a method including performing a graphite spheroidizing treatment on a molten metal, and consists of 2% to 4% of C, 1% to 5% of Si, 0.2% to 0.9% of Mn, 0.1% or less of P, 0.1% or less of S, 3% to 7% of Al, 0% to 1% of Sb, 0% to 0.5% of Sn, 0.02% to 0.10% of Mg, 01% to 0.5% of RE (Ce, La), Fe as balance, and unavoidable impurity.

公开(公告)号：US09873928B2

公开(公告)日：2018-01-23

申请号：US15071114

申请日：2016-03-15

申请人： FEDERAL-MOGUL CORPORATION

发明人： Haron Gekonde ,  John Miller ,  Troy Kantola ,  Blair Jenness ,  Jeff Hunter

IPC分类号： F02F1/00 ,  C22C37/04 ,  B22D19/00 ,  C22C33/08 ,  C22C37/06 ,  C22C37/10 ,  C22C37/00 ,  F16J10/00

CPC分类号： C22C37/04 ,  B22D19/0009 ,  C22C33/08 ,  C22C37/00 ,  C22C37/06 ,  C22C37/10 ,  F02F1/004 ,  F02F2200/06 ,  F16J10/00

摘要： A cast iron having high strength, hardness, and thermal conductivity for a cylinder liner of an internal combustion engine is provided. The cast iron includes 3.2 wt. % to 3.8 wt. % carbon, 2.2 wt. % to 3.2 wt. % silicon, 0.5 wt. % to 1.3 wt. % copper, and at least 75.0 wt. % iron, based on the total weight of the cast iron. The cast iron further includes 0.01 wt. % to 0.5 wt. % manganese, 0.01 wt. % to 0.2 wt. % chromium, up to 0.3 wt. % phosphorous, up to 0.05 wt. % sulfur, up to 0.2 wt. % tin, and up to 0.1 wt. % magnesium, based on the total weight of the cast iron. Preferably, the cast iron is free of molybdenum, nickel, and vanadium. The cast iron is also heat treated and solidifies to achieve fully spheroidal graphite.

公开(公告)号：US20170211507A1

公开(公告)日：2017-07-27

申请号：US15481501

申请日：2017-04-07

申请人： ZYNP International Corp.

发明人： Xiaocai Qin

IPC分类号： F02F1/00 ,  C22C37/04 ,  C22C37/10

CPC分类号： F02F1/004 ,  C22C37/04 ,  C22C37/10

摘要： A high strength cast iron material for application in heavy duty diesel engines with Pa peak cylinder pressure greater than 240 bar is disclosed, the material a ductile material austempered to get a ausferrite matrix structure with higher mechanical properties than conventional cast iron materials available by using a designed low cost alloying cast material with heat treatment. Furthermore, the cylinder liner may be formed using novel heat treatment and/or fine honing processes to improve the properties thereof.

公开(公告)号：US09644245B2

公开(公告)日：2017-05-09

申请号：US14613284

申请日：2015-02-03

申请人： LG Electronics Inc.

发明人： Jaebong Park

IPC分类号： C22C33/08 ,  C22C33/10 ,  C22C33/12 ,  C21D1/20 ,  C21D5/00 ,  F01C21/10 ,  F04C2/344 ,  C21C1/10 ,  C22C37/04 ,  C22C37/06 ,  C22C37/10 ,  F01C21/08 ,  B22D25/02 ,  B22D27/20 ,  C21D9/00 ,  F04C18/356

CPC分类号： C21C1/105 ,  B22D25/02 ,  B22D27/20 ,  C21D5/00 ,  C21D9/0068 ,  C22C33/08 ,  C22C33/10 ,  C22C33/12 ,  C22C37/04 ,  C22C37/06 ,  C22C37/10 ,  F01C21/0809 ,  F04C18/356 ,  F04C2230/21 ,  F05C2201/0442 ,  Y10T428/1266

摘要： A nodular graphite cast iron, a method for fabricating a vane for a rotary compressor using nodular graphite cast iron, and a vane for a rotary compressor using the same are provided. The nodular graphite cast iron includes 3.4 wt % to 3.9 wt % of carbon (C), 2.0 wt % to 3.0 wt % of silicon (Si), 0.3 wt % to 1.0 wt % of manganese (Mn), 0.1 wt % to 1.0 wt % of chromium (Cr), 0.04 wt % to 0.15 wt % of titanium (Ti), less than 0.08 w % of phosphorus (P), less than 0.025 wt % of sulphur (S), 0.03 wt % to 0.05 wt % of magnesium (Mg), 0.02 wt % to 0.04 wt % of rare earth resource, iron (Fe) and impurities as the remnants, and includes a bainite matrix structure, nodular graphite, and 15 vol % to 35 vol % of carbide.