公开(公告)号：US20150174688A1

公开(公告)日：2015-06-25

申请号：US14451759

申请日：2014-08-05

申请人： Hyundai Motor Company ,  Dong-eui University Industry-Academic Cooperation Foundation

发明人： Ji Hong Yoo ,  Seung Hyun Hong ,  Yeong Do Park ,  Jae Won Kim

IPC分类号： B23K11/11 ,  B23K11/16 ,  B23K11/24

CPC分类号： B23K11/11 ,  B23K11/16 ,  B23K11/166 ,  B23K11/241 ,  B23K2103/04

摘要： A spot welding method for a high strength steel sheet is provided. The method includes a first pulse step for applying electric current of about 8 to 9 kA about 1 to 3 cy and a first cooling step for cooling for about 1 to 3 cy. In addition, the method includes a second pulse step for applying electric current less than the electric current applied in the first pulse step and a second cooling step for cooling for about 1 to 3 cy. A third pulse step includes applying electric current greater than the electric current applied in the second pulse step.

摘要翻译： 提供了一种高强度钢板的点焊方法。 该方法包括第一脉冲步骤，用于施加大约1至3个cy的约8至9kA的电流和用于冷却约1至3个cy的第一冷却步骤。 此外，该方法包括：第二脉冲步骤，用于施加小于在第一脉冲步骤中施加的电流的电流;以及第二冷却步骤，用于冷却约1至3个cy。 第三脉冲步骤包括施加大于在第二脉冲步骤中施加的电流的电流。

公开(公告)号：US10308996B2

公开(公告)日：2019-06-04

申请号：US14935881

申请日：2015-11-09

申请人： Hyundai Motor Company

发明人： Moon Ki Bae ,  Seung Hyun Hong ,  Sung Chul Cha

IPC分类号： C21D9/46 ,  C21D8/02 ,  C22C38/32 ,  C22C38/22 ,  C22C38/28 ,  C22C38/26 ,  C22C38/04 ,  C22C38/02 ,  C23C2/06 ,  C23C2/28 ,  B32B15/01 ,  C23C2/04 ,  C23C28/02 ,  C23C28/00 ,  C23C2/40 ,  C23C30/00 ,  B32B15/18 ,  C22C38/50 ,  B32B15/04 ,  C22C38/12 ,  C22C38/14 ,  C22C38/48 ,  C22C38/44 ,  C23C2/26

摘要： Disclosed is a steel composition for hot stamping that comprises carbon (C) in an amount of about 0.22 to about 0.25 wt %, silicon (Si) in an amount of about 0.2 to about 0.3 wt %, manganese (Mn) in an amount of about 1.2 to about 1.4 wt %, titanium (Ti) in an amount of about 0.02 to about 0.05 wt %, chromium (Cr) in an amount of about 0.11 to about 0.2 wt %, boron (B) in an amount of about 0.005 to about 0.01 wt %, zinc (Zr) in an amount of about 0.005 to about 0.02 wt %, niobium (Nb) in an amount of about 0.01 to about 0.05 wt %, tungsten (W) in an amount of about 0.1 to about 0.5 wt %, iron (Fe) constituting the remaining balance of the steel composition, all the wt % based on the total amount of the steel composition.

公开(公告)号：US20170159160A1

公开(公告)日：2017-06-08

申请号：US15179712

申请日：2016-06-10

申请人： Hyundai Motor Company ,  Hyundai Steel Company

发明人： Sung Chul Cha ,  Hyung Oh Ban ,  Seung Hyun Hong ,  Chul Woo Park

IPC分类号： C22C38/52 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  F01L1/46 ,  C22C38/34 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/50 ,  C22C38/42

CPC分类号： C22C38/52 ,  C21D8/065 ,  C21D9/02 ,  C21D9/525 ,  C21D2211/003 ,  C21D2211/004 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/34 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  F01L1/462 ,  F01L2101/00

摘要： A steel composition is provided and includes carbon of about 0.5 to 0.7 wt %; silicon of about 1.3 to 2.3 wt %; manganese of about 0.6 to 1.2%; chromium of about 0.6 to 1.2 wt %; molybdenum of about 0.1 to 0.5 wt %; nickel of about 0.05 to 0.8 wt %; vanadium of about 0.05 to 0.5 wt %; niobium of about 0.05 to 0.5 wt %; titanium of about 0.05 to 0.3 wt %; cobalt of about 0.01 to 3 wt %; zirconium of about 0.001 to 0.2 wt %; yttrium of about 0.01 to 1.5 wt %; copper of about 0.3% or less but greater than 0 wt %; aluminum of about 0.3% or less but greater than 0 wt %; nitrogen of about 0.03% or less but greater than 0 wt %; oxygen of about 0.003% or less but greater than 0 wt %. Additionally, a balance iron, based on the total weight is included.

公开(公告)号：US10329650B2

公开(公告)日：2019-06-25

申请号：US15376466

申请日：2016-12-12

申请人： Hyundai Motor Company

发明人： Sung Chul Cha ,  Seong Guk Son ,  Seung Hyun Hong ,  Soon Woo Kwon

IPC分类号： C22C38/58 ,  C22C38/02 ,  C22C38/06 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C21D6/00 ,  C21D8/02 ,  C22C38/00 ,  C22C38/04

摘要： Disclosed herein is a high manganese steel including: 0.5 to 1.2 wt % of carbon (C), 0.1 to 2.3 wt % of silicon (Si), 15 to 30 wt % of manganese (Mn), 7.0 to 13.0 wt % of aluminum (Al), 0.01 to 3.0 wt % of nickel (Ni), 0.01 to 0.5 wt % of chromium (Cr), 0.01 to 0.4 wt % of molybdenum (Mo), 0.01 to 0.5 wt % of vanadium (V), 0.005 to 0.3 wt % of niobium (Nb), 0.005 to 0.3 wt % of titanium (Ti), and remainder iron (Fe) and other inevitable impurities.

公开(公告)号：US20170298487A1

公开(公告)日：2017-10-19

申请号：US15342636

申请日：2016-11-03

申请人： Hyundai Motor Company ,  Hyundai Steel Company

发明人： Sung Chul Cha ,  Seung Hyun Hong ,  Ik Soo Kim ,  Kyu Ho Lee

IPC分类号： C22C38/54 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C22C38/00 ,  C22C38/34 ,  C22C38/06 ,  C22C38/04 ,  C22C38/50 ,  C22C38/42

CPC分类号： C22C38/54 ,  B60G2206/72 ,  C22C38/001 ,  C22C38/002 ,  C22C38/04 ,  C22C38/06 ,  C22C38/34 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50

摘要： Disclosed herein is a steel composition with improvement in tensile strength and fatigue life, which can be used for a vehicle part such as a vehicle suspension system.

公开(公告)号：US20170029913A1

公开(公告)日：2017-02-02

申请号：US14935881

申请日：2015-11-09

申请人： Hyundai Motor Company

发明人： Moon Ki Bae ,  Seung Hyun Hong ,  Sung Chul Cha

IPC分类号： C21D9/46 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C21D8/02 ,  C22C38/04 ,  C22C38/02 ,  C23C2/06 ,  C23C2/28 ,  B32B15/01 ,  C22C38/22

CPC分类号： C21D9/46 ,  B32B15/013 ,  C21D8/0205 ,  C21D8/0221 ,  C21D8/0273 ,  C21D8/0278 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C23C2/06 ,  C23C2/26 ,  C23C2/28

摘要： Disclosed is a steel composition for hot stamping that comprises carbon (C) in an amount of about 0.22 to about 0.25 wt %, silicon (Si) in an amount of about 0.2 to about 0.3 wt %, manganese (Mn) in an amount of about 1.2 to about 1.4 wt %, titanium (Ti) in an amount of about 0.02 to about 0.05 wt %, chromium (Cr) in an amount of about 0.11 to about 0.2 wt %, boron (B) in an amount of about 0.005 to about 0.01 wt %, zinc (Zr) in an amount of about 0.005 to about 0.02 wt %, niobium (Nb) in an amount of about 0.01 to about 0.05 wt %, tungsten (W) in an amount of about 0.1 to about 0.5 wt %, iron (Fe) constituting the remaining balance of the steel composition, all the wt % based on the total amount of the steel composition.

摘要翻译： 公开了一种用于热冲压的钢组合物，其包含约0.22至约0.25重量％的碳（C），约0.2至约0.3重量％的硅（Si），量（Mn） 约1.2至约1.4重量％的量，约0.02至约0.05重量％的钛（Ti），约0.11至约0.2重量％的铬（Cr），硼（B）的量为约0.005 约0.01重量％的锌（Zr），约0.005至约0.02重量％的量，约0.01至约0.05重量％的铌（Nb），约0.1至约0.05重量％的钨（W） 0.5重量％，构成钢组合物剩余余量的铁（Fe）全部为钢组合物总量的重量％。

公开(公告)号：US11427889B2

公开(公告)日：2022-08-30

申请号：US17075069

申请日：2020-10-20

申请人： HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

发明人： Young Nam Kim ,  Min Woo Kang ,  Seung Hyun Hong

IPC分类号： C22C9/00 ,  F01L3/02 ,  C22C9/06

摘要： A copper alloy for engine valve seats manufactured by laser cladding improves wear resistance of the copper alloy. The copper alloy includes 12 to 24 wt % of Ni, 2 to 4 wt % of Si, 4 to 12 wt % of Mo, 15 to 35 wt % of Fe, and the remaining wt % of Cu and impurities.

公开(公告)号：US20210395862A1

公开(公告)日：2021-12-23

申请号：US17075029

申请日：2020-10-20

申请人： HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

发明人： Min Woo Kang ,  Soon Woo Kwon ,  Hyun Ki Kim ,  Chung An Lee ,  Seung Hyun Hong ,  Young Nam Kim

IPC分类号： C22C9/00 ,  C22C30/02 ,  F01L3/02

摘要： A copper alloy for valve seats, and more particularly a copper alloy for valve seats with improved wear resistance, contains 12 to 24% by weight of Ni, 2 to 4% by weight of Si, 7 to 13% by weight of Cr, 20 to 35% by weight of Fe, and a balance of Cu and other impurities.

公开(公告)号：US20190242005A1

公开(公告)日：2019-08-08

申请号：US16385422

申请日：2019-04-16

申请人： Hyundai Motor Company ,  Kia Motors Corporation

发明人： Sung Chul CHA ,  June Ho Yang ,  Hee Sam Kang ,  Chi Hoon Choi ,  Sang Yoon Park ,  Jong Dae Lim ,  Seung Hyun Hong

IPC分类号： C23C14/24 ,  C23C30/00 ,  B29C35/02 ,  C23C28/00 ,  C23C16/30 ,  C23C16/02 ,  C23C14/06 ,  C23C14/02 ,  C23C16/44 ,  B29C70/30 ,  F16J1/16 ,  C23C14/08 ,  B32B1/08 ,  B32B5/26 ,  B32B27/38

CPC分类号： C23C14/24 ,  B29C35/02 ,  B29C70/30 ,  B29K2105/0872 ,  B29L2031/7494 ,  B32B1/08 ,  B32B5/26 ,  B32B27/38 ,  B32B2305/076 ,  B32B2605/00 ,  C23C14/024 ,  C23C14/025 ,  C23C14/028 ,  C23C14/06 ,  C23C14/08 ,  C23C16/0254 ,  C23C16/0272 ,  C23C16/30 ,  C23C16/44 ,  C23C28/00 ,  C23C28/30 ,  C23C28/32 ,  C23C28/323 ,  C23C28/324 ,  C23C28/343 ,  C23C30/005 ,  F16J1/16

摘要： Disclosed herein is a method of treating a composite piston pin, including: preparing the piston pin of which at least surface layer includes a composite material including a reinforcing fiber and a resin; improving roughness by processing the surface layer of the piston pin; and forming a coating layer on the surface layer processed to reduce a friction coefficient of the piston pin.

公开(公告)号：US20180073114A1

公开(公告)日：2018-03-15

申请号：US15374870

申请日：2016-12-09

申请人： Hyundai Motor Company

发明人： Sung Chul CHA ,  Jong Hwi Park ,  Dong Lim Seo ,  Seung Hyun Hong

IPC分类号： C22C38/54 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C22C38/42 ,  C22C38/34 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00

CPC分类号： C22C38/54 ,  C21D1/18 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D6/02 ,  C21D2211/004 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/34 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48

摘要： Disclosed herein is a high strength special steel including, by weight %: carbon (C): from about 0.1 to 0.5%; silicon (Si): from about 0.1 to 2.3%; manganese (Mn): from about 0.3 to 1.5%; chromium (Cr): from about 1.1 to 4.0%; molybdenum (Mo): from about 0.3 to 1.5%; nickel (Ni): from about 0.1 to 4.0%; vanadium (V): from about 0.01 to 0.50%; boron (B): from about 0.001 to 0.010%; niobium (Nb): from about 0.05 to 0.50%; and the balance of iron (Fe) and inevitable impurities.