公开(公告)号：US20220064755A1

公开(公告)日：2022-03-03

申请号：US17523247

申请日：2021-11-10

申请人： Hyundai Motor Company ,  Kia Corporation ,  Hyundai Steel Company

发明人： Jae-Yoon Hwang ,  Min-Woo Kang ,  Shin-Woong Jeong ,  Soon-Jae Won ,  Sang-Min Song ,  Seung-Hyun Hong ,  Min-Woo Kang

IPC分类号： C21D9/52 ,  C22C38/44 ,  C22C38/04 ,  C22C38/02 ,  C21D1/32 ,  B21B3/00 ,  C21D6/00 ,  C23C8/32 ,  C23C8/80 ,  C21D8/06

摘要： Disclosed is a method for manufacturing high-carbon bearing steel, which include: heating a billet at a temperature of about 950 to 1,050° C. for about 70 to 120 minutes, rolling the billet to manufacture a wire rod, winding the wire rod to manufacture a wire rod coil, cooling the wire rod coil, and subsequently heat treating the wire rod coil for spheroidizing and carbonitriding, respectively. The bearing steel may include an amount of about 0.9 to 1.3 wt % of carbon (C), an amount of about 1.1 to 1.6 wt % of silicon (Si), an amount of about 1.0 to 1.5 wt % of manganese (Mn), an amount of about 1.5 to 1.9 wt % of chromium (Cr), an amount of about 0.2 to 0.6 wt % of nickel (Ni), an amount of about 0.1 to 0.3 wt % of molybdenum (Mo), and the balance iron (Fe) based on the total weight thereof.

公开(公告)号：US11578383B2

公开(公告)日：2023-02-14

申请号：US17523247

申请日：2021-11-10

申请人： Hyundai Motor Company ,  Kia Corporation ,  Hyundai Steel Company

发明人： Jae-Yoon Hwang ,  Min-Woo Kang ,  Shin-Woong Jeong ,  Soon-Jae Won ,  Sang-Min Song ,  Seung-Hyun Hong ,  Min-Woo Kang

IPC分类号： C21D9/52 ,  C22C38/44 ,  C22C38/04 ,  C22C38/02 ,  B21B3/00 ,  C21D1/32 ,  C21D6/00 ,  C23C8/32 ,  C23C8/80 ,  C21D8/06

摘要： Disclosed is a method for manufacturing high-carbon bearing steel, which include: heating a billet at a temperature of about 950 to 1,050° C. for about 70 to 120 minutes, rolling the billet to manufacture a wire rod, winding the wire rod to manufacture a wire rod coil, cooling the wire rod coil, and subsequently heat treating the wire rod coil for spheroidizing and carbonitriding, respectively. The bearing steel may include an amount of about 0.9 to 1.3 wt % of carbon (C), an amount of about 1.1 to 1.6 wt % of silicon (Si), an amount of about 1.0 to 1.5 wt % of manganese (Mn), an amount of about 1.5 to 1.9 wt % of chromium (Cr), an amount of about 0.2 to 0.6 wt % of nickel (Ni), an amount of about 0.1 to 0.3 wt % of molybdenum (Mo), and the balance iron (Fe) based on the total weight thereof.

公开(公告)号：US11198920B2

公开(公告)日：2021-12-14

申请号：US16691951

申请日：2019-11-22

申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  Hyundai Steel Company

发明人： Jae-Yoon Hwang ,  Min-Woo Kang ,  Shin-Woong Jeong ,  Soon-Jae Won ,  Sang-Min Song ,  Seung-Hyun Hong ,  Min-Woo Kang

IPC分类号： C21D9/52 ,  C22C38/44 ,  C22C38/04 ,  C22C38/02 ,  C21D1/32 ,  B21B3/00 ,  C21D6/00 ,  C23C8/32 ,  C23C8/80 ,  C21D8/06

摘要： Disclosed is a method for manufacturing high-carbon bearing steel, which include: heating a billet at a temperature of about 950 to 1,050° C. for about 70 to 120 minutes, rolling the billet to manufacture a wire rod, winding the wire rod to manufacture a wire rod coil, cooling the wire rod coil, and subsequently heat treating the wire rod coil for spheroidizing and carbonitriding, respectively. The bearing steel may include an amount of about 0.9 to 1.3 wt % of carbon (C), an amount of about 1.1 to 1.6 wt % of silicon (Si), an amount of about 1.0 to 1.5 wt % of manganese (Mn), an amount of about 1.5 to 1.9 wt % of chromium (Cr), an amount of about 0.2 to 0.6 wt % of nickel (Ni), an amount of about 0.1 to 0.3 wt % of molybdenum (Mo), and the balance iron (Fe) based on the total weight thereof.

公开(公告)号：US20200377965A1

公开(公告)日：2020-12-03

申请号：US16691951

申请日：2019-11-22

申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  Hyundai Steel Company

发明人： Jae-Yoon Hwang ,  Min-Woo Kang ,  Shin-Woong Jeong ,  Soon-Jae Won ,  Sang-Min Song ,  Seung-Hyun Hong ,  Min-Woo Kang

IPC分类号： C21D9/52 ,  C22C38/44 ,  C22C38/04 ,  C22C38/02 ,  C21D1/32 ,  C21D8/06 ,  C21D6/00 ,  C23C8/32 ,  C23C8/80 ,  B21B3/00

摘要： Disclosed is a method for manufacturing high-carbon bearing steel, which include: heating a billet at a temperature of about 950 to 1,050° C. for about 70 to 120 minutes, rolling the billet to manufacture a wire rod, winding the wire rod to manufacture a wire rod coil, cooling the wire rod coil, and subsequently heat treating the wire rod coil for spheroidizing and carbonitriding, respectively. The bearing steel may include an amount of about 0.9 to 1.3 wt % of carbon (C), an amount of about 1.1 to 1.6 wt % of silicon (Si), an amount of about 1.0 to 1.5 wt % of manganese (Mn), an amount of about 1.5 to 1.9 wt % of chromium (Cr), an amount of about 0.2 to 0.6 wt % of nickel (Ni), an amount of about 0.1 to 0.3 wt % of molybdenum (Mo), and the balance iron (Fe) based on the total weight thereof.

公开(公告)号：US20160369370A1

公开(公告)日：2016-12-22

申请号：US14932370

申请日：2015-11-04

申请人： Hyundai Motor Company ,  Korea Institute of Science and Technology

发明人： Sung-Chul Cha ,  Seung-Hyun Hong ,  Young-Sang Ko ,  Woo-Sang Jung ,  Jin-Yoo Suh

IPC分类号： C21D9/52 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C21D1/32 ,  C22C38/02 ,  C22C38/00 ,  C21D8/06 ,  C21D6/00 ,  C21D1/56 ,  C22C38/46 ,  C22C38/04

CPC分类号： C21D9/525 ,  C21D1/32 ,  C21D1/56 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/065 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46

摘要： The present invention relates to a steel composition for bearing having improved fatigue durability and a method of manufacturing the same. The steel composition comprises: an amount of about 0.08 to 1.0 wt % of carbon (C); an amount of about 0.9 to 1.6 wt % of silicon (Si); an amount greater than 0 wt % and of about 0.03 wt % or less of phosphorus (P); an amount greater than 0 wt % and of about 0.01 wt % or less of sulfur (S); an amount of about 0.01 to 0.1 wt % of copper (Cu); an amount of about 0.01 to 0.06 wt % of aluminum (Al); an amount greater than 0 wt % and of about 0.006 wt % or less of nitrogen (N); an amount greater than 0 wt % and of about 0.001 wt % or less of oxygen (O); one or more selected from the group consisting of: an amount of about 0.5 to 1.00 wt % of manganese (Mn), an amount of about 0.1 to 0.6 wt % of nickel (Ni), an amount of about 1.4 to 1.55 wt % of chromium (Cr), an amount of about 0.2 to 0.5 wt % of molybdenum (Mo), and an amount greater than 0 wt % and of about 0.4 wt % or less of vanadium (V); and iron (Fe) constituting the balance of the weight of the steel composition, all wt % based on the total weight of the alloy steel composition

摘要翻译： 本发明涉及具有改善的疲劳寿命的轴承用钢组合物及其制造方法。 钢组合物包含：碳（C）的约0.08〜1.0重量％ 硅（Si）的约0.9〜1.6重量％的量; 大于0重量％和约0.03重量％以下的磷（P）的量; 大于0重量％和约0.01重量％以下硫（S）的量; 大约为0.01〜0.1重量％的铜（Cu）; 约0.01〜0.06重量％的铝（Al）的量; 大于0重量％和约0.006重量％或更少的氮（N）的量; 大于0重量％和约0.001重量％以下氧（O）的量; 选自以下组中的一种或多种：约0.5〜1.00重量％的锰（Mn），约0.1〜0.6重量％的镍（Ni），约1.4〜1.55重量％ 铬（Cr），钼（Mo）的0.2〜0.5重量％，钒（V）的含量大于0重量％和0.4重量％左右。 和构成钢组合物重量余量的铁（Fe），全部以合金钢组合物的总重量计为wt％

公开(公告)号：US20220090253A1

公开(公告)日：2022-03-24

申请号：US17149411

申请日：2021-01-14

申请人： HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

发明人： Min-Woo Kang ,  Soon-Woo Kwon ,  Min-Woo Kang ,  Hyun-Ki Kim ,  Dong-Hwi Kim ,  In-Beom Lee ,  Chung-An Lee ,  Seung-Hyun Hong

IPC分类号： C23C8/22 ,  C22C38/44 ,  C22C38/02 ,  C22C38/04 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54

摘要： A carburizing steel includes, based on a total wt % of the carburizing steel: 0.1 wt % or more and 0.3 wt % or less of C (carbon); 2.0 wt % or more and 2.7 wt % or less of Cr (chrome); 0.4 wt % or more of Si (silicon); 0.3 wt % or more and 0.7 wt % or less of Mo (molybdenum); less than 0.7 wt % of Mn (manganese); and 0.6 wt % or more and 1.5 wt % or less of Ni (nickel).

公开(公告)号：US20180080097A1

公开(公告)日：2018-03-22

申请号：US13715695

申请日：2012-12-14

申请人： Hyundai Motor Company

发明人： Seung-Hyun Hong ,  Ji-Hong Yoo

IPC分类号： C21D6/00 ,  C21D1/42 ,  C22C38/02 ,  C22C38/04 ,  C22C38/00

CPC分类号： C21D6/008 ,  C21D1/19 ,  C21D1/42 ,  C21D1/673 ,  C21D6/005 ,  C21D7/13 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2211/009 ,  C21D2221/00 ,  C22C1/02 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  Y02P10/253

摘要： Disclosed is a high frequency heat treatment method of hot-stamping-treated ultra-high strength parts, which comprises: a first step of heating the parts until the temperature of a heat treatment zone thereof becomes the AC3 transformation point or higher; a second step of maintaining the temperature until phase transformation of the heat treatment zone to austenite is completed; and a third step of cooling the heat treatment zone to transform the structure thereof to ferrite-pearlite. The present method improves the energy absorbing efficiency by increasing the parts' elongation ratio by locally forming a softening structure which absorbs energy.

公开(公告)号：US20160145702A1

公开(公告)日：2016-05-26

申请号：US14939475

申请日：2015-11-12

申请人： Hyundai Motor Company

发明人： Sung-Chul Cha ,  Seung-Hyun Hong

IPC分类号： C21D8/00 ,  C22C38/46 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C21D1/32 ,  C22C38/02 ,  C22C38/00 ,  C21D9/36 ,  C21D8/06 ,  C21D6/00 ,  C22C38/48 ,  C22C38/04

CPC分类号： C21D8/005 ,  C21D1/32 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/065 ,  C21D9/36 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48

摘要： Disclose is an alloy composition for bearing steel having improved fatigue durability and a method of manufacturing the bearing steel comprising the same. The alloy composition comprises: based on a total weight of the alloy composition, an amount of about 0.8 to 1.0 wt % of carbon (C), an amount of about 0.35 to 0.9 wt % of silicon (Si), an amount of about 0.5 to 1.0 wt % of manganese (Mn), an amount of about 0.6 to 1.5 wt % of nickel (Ni), an amount of about 1.2 to 1.55 wt % of chromium (Cr), an amount of about 0.2 to 0.5 wt % of molybdenum (Mo), an amount of about 0.01 to 0.06 wt % of aluminum (Al), an amount of about 0.01 to 0.1 wt % of copper (Cu), and iron (Fe) constituting the balance of the weight of the alloy composition. Preferred alloy composition can provide improved strength, hardness, and fatigue life due to spheroidized carbide complex.

摘要翻译： 松露是具有改进的疲劳耐久性的轴承钢的合金组合物和包含该组合物的轴承钢的制造方法。 合金组成包括：基于合金组合物的总重量，碳（C）的约0.8至1.0重量％，硅（Si）的约0.35至0.9重量％，约0.5的量 至1.0重量％的锰（Mn），约0.6-1.5重量％的镍（Ni），约1.2-1.55重量％的铬（Cr）的量，约0.2-0.5重量％ 钼（Mo）的含量为铝（Al）的0.01〜0.06重量％，铜（Cu）的0.01〜0.1重量％，构成合金成分重量的余量的铁（Fe） 。 优选的合金组合物可以由于球状碳化物复合物而提供改善的强度，硬度和疲劳寿命。

公开(公告)号：US20160002766A1

公开(公告)日：2016-01-07

申请号：US14569298

申请日：2014-12-12

申请人： Hyundai Motor Company

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

IPC分类号： C23C14/06 ,  C23C14/02 ,  B22C9/12 ,  C23C14/22 ,  F01D5/02 ,  B22C9/06 ,  C23C14/34 ,  C23C16/44

CPC分类号： C23C14/0641 ,  B22C9/061 ,  B22C9/12 ,  C23C14/0057 ,  C23C14/022 ,  C23C14/22 ,  C23C14/34 ,  C23C14/352 ,  C23C16/44 ,  C23C28/044 ,  C23C28/048 ,  F01D5/02 ,  F01D5/288 ,  F05D2220/40 ,  F05D2230/90 ,  F05D2300/174

摘要： Disclosed are a coating layer having excellent low-friction ability at a high temperature and a method of forming the coating layer. The high-temperature low-fiction coating layer may improve heat resistance, fatigue resistance, low-friction ability, and seizure resistance of the turbine wheel of a turbocharger and the parts sliding at a high temperature in the exhaust system of an engine, improve turbo-lag, and improve durability of the high-temperature parts in the exhaust system of an engine. The high-temperature low-friction coating layer includes: a CrN bonding layer 110 disposed on a nitrified base material 100; a TiAlCrYN nano-multi-support layer 120 disposed on the CrN bonding layer 110 to achieve heat resistance, fatigue resistance, wear resistance, and toughness of the coating layer; and a TiAlCrYCN nano-multi-function layer 130 disposed on the TiAlCrYN nano-multi-support layer 120 to achieve heat resistance, oxidation resistance, seizure resistance, toughness, and low-friction ability of the coating layer.

摘要翻译： 公开了在高温下具有优异的低摩擦能力的涂层和形成涂层的方法。 高温低分子涂层可以提高涡轮增压器的涡轮机叶轮和发动机排气系统中在高温下滑动的部件的耐热性，耐疲劳性，低摩擦能力和抗咬合性，改善涡轮增压 并且提高发动机的排气系统中的高温部件的耐久性。 高温低摩擦涂层包括：设置在硝化基材100上的CrN粘合层110; 设置在CrN接合层110上以实现涂层的耐热性，耐疲劳性，耐磨性和韧性的TiAlCrYN纳米多支撑层120; 以及设置在TiAlCrYN纳米多支撑层120上的TiAlCrYCN纳米多功能层130，以实现涂层的耐热性，抗氧化性，耐咬合性，韧性和低摩擦能力。

公开(公告)号：US20220178010A1

公开(公告)日：2022-06-09

申请号：US17175384

申请日：2021-02-12

申请人： HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

发明人： Dong-Hwi Kim ,  Soon-Woo Kwon ,  Chung-An Lee ,  Hyun-Ki Kim ,  Seung-Hyun Hong ,  Min-Woo Kang

IPC分类号： C23C8/26

摘要： A heat treatment method of a component for a vehicle includes: heating an inner space of a heat treatment furnace in which a component for a vehicle is disposed in the inner space; stabilizing hydrogen (H2) by injecting the H2 into the inner space; and performing nitrification heat treatment for the component by injecting only ammonia (NH3) into the inner space after the stabilizing. The heat treatment method may adjust the degree of vacuum and the flow rate instead of a Kn without additionally injecting the H2 gas into an NH3 gas, thereby implementing the nitrification heat treatment of a quality similar to that of a conventional nitrification heat treatment for a short time.