公开(公告)号：KR1020040034021A

公开(公告)日：2004-04-28

申请号：KR1020020063346

申请日：2002-10-17

Applicant: 현대자동차주식회사

Inventor： 조봉래

IPC: C21D9/32

Abstract: PURPOSE: A heat treatment method of boron alloy steel for gears is provided to obtain superior fatigue strength and impact performance of final alloy steel product and improve quality homogeneity of the product by improving preprocessing heat treatment to be performed on Cr steel in which boron is not contained after hot forging process. CONSTITUTION: In a gear manufacturing method comprising the processes of hot forging an alloy steel workpiece comprising 0.20 wt.% of C, 0.10 wt.% of Si, 0.70 wt.% of Mn, 0.01 wt.% of P, 0.01 wt.% of S, 1.05 wt.% of Cr, 0.025 wt.% of Nb, 20 ppm of B and a balance of Fe; air cooling or naturally cooling the hot forged alloy steel workpiece; performing preprocessing heat treatment on the cooled alloy steel workpiece; processing the heat treated alloy steel workpiece; and carburizing the processed alloy steel workpiece, the heat treatment method of boron alloy steel for gears is characterized in that the preprocessing heat treatment process comprises the steps of heating the cooled alloy steel workpiece at temperature of 920 deg.C for 2 to 4 hours; maintaining reheating of the air cooled alloy steel workpiece at the temperature of 650 to 750 deg.C for 2 to 3 hours after air cooling the heated alloy steel workpiece to a temperature of 650 to 750 deg.C in a cooling rate of about 2 deg.C/sec; and air cooling the reheated alloy steel workpiece to an ordinary temperature in a cooling rate of about 2 deg.C/sec.

Abstract translation: 目的：提供一种用于齿轮的硼合金钢的热处理方法，通过改善在不进行硼的Cr钢上进行预处理热处理，获得优异的最终合金钢产品的疲劳强度和冲击性能，提高产品质量均匀性 热锻后加工。 构成：在包括热锻工艺的齿轮制造方法中，该合金钢工件包括0.20重量％的C，0.10重量％的Si，0.70重量％的Mn，0.01重量％的P，0.01重量％ 的S，1.05重量％的Cr，0.025重量％的Nb，20ppm的B和余量的Fe; 空冷或自然冷却热锻合金钢工件; 对冷却合金钢工件进行预处理热处理; 加工热处理合金钢工件; 对经处理的合金钢工件进行渗碳处理，用于齿轮的硼合金钢的热处理方法的特征在于预处理热处理工艺包括在920℃的温度下加热冷却合金钢工件2至4小时的步骤; 在650〜750℃的温度下保持空气冷却的合金钢工件的再加热2〜3小时，将加热的合金钢工件在约2℃的冷却速度下冷却至650〜750℃ .C /秒; 并将再热合金钢工件以约2℃/秒的冷却速度空气冷却至常温。

公开(公告)号：KR1020040025240A

公开(公告)日：2004-03-24

申请号：KR1020020057106

申请日：2002-09-19

Applicant: 현대자동차주식회사

Inventor： 조봉래 ,  김정현

IPC: B60R1/06

CPC classification number: B60R1/0602

Abstract: PURPOSE: A rainwater on a mirror is prevented by forming an air layer on the mirror, thereby obtaining a clear vision while driving in rainy day. CONSTITUTION: A compression air tank(20) of a brake device is provided to supply compressed air. A plurality of injection nozzle is connected to the compression air tank to inject air to the mirror surface forming an air layer. A solenoid valve(24) is installed to control the supply of the compressed air. An air vent hole is positioned in rear side of a mirror housing. An opening/closing member selectively opens the air vent hole by an actuator(44). A wind pressure sensor(50) is provided to detect wind pressure while driving. A controller(60) controls the solenoid valve and the actuator according to the detected wind pressure.

Abstract translation: 目的：通过在镜子上形成空气层来防止镜子上的雨水，从而在雨天开车时获得清晰的视野。 构成：提供制动装置的压缩空气罐（20）以供应压缩空气。 多个注射喷嘴连接到压缩空气罐，以将空气喷射到形成空气层的镜面上。 安装电磁阀（24）以控制压缩空气的供应。 一个通气孔位于镜壳的后侧。 打开/关闭构件通过致动器（44）选择性地打开通气孔。 提供风压传感器（50）以在驾驶时检测风压。 控制器（60）根据检测到的风压来控制电磁阀和致动器。

公开(公告)号：KR1020030097233A

公开(公告)日：2003-12-31

申请号：KR1020020034514

申请日：2002-06-20

Applicant: 현대자동차주식회사

Inventor： 조봉래

IPC: C22C38/18

Abstract: PURPOSE: A chromium-molybdenum (Cr-Mo) alloy steel for gear is provided which is easily applied to high power transmission gear and shaft by adding a trace of boron to Cr-Mo alloy steel not containing nickel and controlling contents of some of alloy elements, thereby improving properties and formability and reducing manufacturing cost. CONSTITUTION: In a chromium-molybdenum (Cr-Mo) alloy steel used as a material for gear, the chromium-molybdenum (Cr-Mo) alloy steel for gear comprises a principal constituent of iron (Fe), 0.17 to 0.23 wt.% of carbon (C), 0.10 wt.% or less of silicon (Si), 0.55 to 0.90 wt.% of manganese (Mn), 0.015 wt.% or less of phosphorus (P), 0.02 to 0.03 wt.% of sulfur (S), 0.85 to 1.25 wt.% of chromium (Cr), 0.15 to 0.35 wt.% of molybdenum (Mo), 0.015 to 0.035 wt.% of niobium (Nb) and 10 to 20 ppm of boron (B).

Abstract translation: 目的：提供一种用于齿轮的铬钼（Cr-Mo）合金钢，通过向不含镍的Cr-Mo合金钢中加入痕量的硼，并且控制一些合金的含量，容易地应用于大功率传动齿轮和轴 元件，从而提高性能和成型性，降低制造成本。 构成：在用作齿轮材料的铬钼（Cr-Mo）合金钢中，用于齿轮的铬 - 钼（Cr-Mo）合金钢包含铁（Fe）的主要成分，0.17至0.23重量％ 的碳（C），0.10重量％以下的硅（Si），0.55〜0.90重量％的锰（Mn），0.015重量％以下的磷（P），0.02〜0.03重量％的硫 （S），0.85〜1.25重量％的铬（Cr），0.15〜0.35重量％的钼（Mo），0.015〜0.035重量％的铌（Nb）和10〜20ppm的硼（B）。

公开(公告)号：KR1020030090974A

公开(公告)日：2003-12-01

申请号：KR1020020028876

申请日：2002-05-24

Applicant: 현대자동차주식회사

Inventor： 조봉래

IPC: C22C38/18

Abstract: PURPOSE: A high strength Cr-Mo alloy steel for transmission gears is provided, which reduces manufacturing cost and extends life time of processing tools by replacing a conventional Ni-Cr-Mo alloy steel applied part, and which is easily applied to high power transmission gears and shafts. CONSTITUTION: The high strength Cr-Mo alloy steel for transmission gears is characterized in that it is manufactured by adding 15 ppm of dissolved oxygen to an alloy steel comprising 0.17 to 0.21 wt.% of C, 0.15 wt.% or less of Si, 0.65 to 0.85 wt.% of Mn, 0.015 wt.% or less of P, 0.02 to 0.03 wt.% of S, 1.25 to 1.45 wt.% of Cr, 0.45 to 0.65 wt.% of Mo, 0.015 to 0.035 wt.% of Nb, 0.01 to 0.03 wt.% of Ti and a balance of Fe.

Abstract translation: 目的：提供用于传动齿轮的高强度Cr-Mo合金钢，通过替代常规的Ni-Cr-Mo合金钢应用部件，降低了制造成本并延长了加工工具的使用寿命，并且易于应用于高功率传输 齿轮和轴。 构成：用于传动齿轮的高强度Cr-Mo合金钢的特征在于，通过将15ppm的溶解氧加入合金钢中制造，所述合金钢包含0.17至0.21重量％的C，0.15重量％或更少的Si， 0.65〜0.85重量％的Mn，0.015重量％以下的P，0.02〜0.03重量％的S，1.25〜1.45重量％的Cr，0.45〜0.65重量％的Mo，0.015〜0.035重量％ 的Nb，0.01〜0.03重量％的Ti和余量的Fe。

公开(公告)号：KR100380441B1

公开(公告)日：2003-04-26

申请号：KR1020000062383

申请日：2000-10-23

Applicant: 현대자동차주식회사

Inventor： 조봉래

IPC: C22C38/44

Abstract: PURPOSE: Provided is Si-Cr free carburizing steel composition with excellent durability and mechanical properties such as fatigue strength for transmission gear. CONSTITUTION: In a carburizing steel composition mainly composed of Fe, the steel composition comprises C 0.17-0.23 wt.%, Si 0.01 wt.% or less, Mn 0.30-0.5 wt.%, P 0.01 wt.% or less, S 0.015 wt.%% or less, Ni 1.55-2.0 wt.%%, Cr 0.01 wt.% or less, Mo 0.9-1.1 wt.%, Nb 0.015-0.1 wt.%, Vd 0.01-0.05 wt.%, trace amount of Ti and Al.

Abstract translation: 用途：提供具有优异的耐久性和传动装置的疲劳强度等机械特性的Si-Cr自由渗碳钢成分。 构成：在主要由Fe组成的渗碳钢组合物中，钢组成包含C 0.17-0.23重量％，Si 0.01重量％或更少，Mn 0.30-0.5重量％，P 0.01重量％或更少，S 0.015 ，Ni：1.55-2.0重量％，Cr：0.01重量％以下，Mo：0.9-1.1重量％，Nb：0.015-0.1重量％，Vd：0.01-0.05重量％，微量 的Ti和Al。

公开(公告)号：KR1020030013961A

公开(公告)日：2003-02-15

申请号：KR1020010048262

申请日：2001-08-10

Applicant: 현대자동차주식회사

Inventor： 조봉래

IPC: C23C8/20

CPC classification number: C23C8/02 ,  C23C8/20

Abstract: PURPOSE: A method for reducing thermal deformation of cementation heat treatment parts is provided to reduce the deformation range of the parts after heat treatment by passing the parts through sub-zero treatment process before cementation after forming parts such as gears for automobile transmission. CONSTITUTION: The method comprises hot or cold forging process for a material to be formed, cooling process, heat treatment process before forming, forming process, cementation heat treatment process and postforming process, wherein the method further comprises a sub-zero treatment process between the forming process and the cementation heat treatment process in which the rapidly cooled article is maintained for a certain period of time after rapidly cooling a formed article to a liquid nitrogen temperature of about -196 deg.C before heat treating the formed material after forming of the material.

Abstract translation: 目的：提供一种降低胶结热处理部件热变形的方法，通过在汽车变速器齿轮等部件形成后，通过零部件通过零下处理工艺，减少热处理后部件的变形范围。 构成：该方法包括要形成的材料的热或冷锻造工艺，冷却过程，成形之前的热处理工艺，成型工艺，胶结热处理工艺和后成型工艺，其中所述方法还包括： 在将成型体快速冷却至约-196℃的液氮温度之后将快速冷却的物品保持一定时间的固化热处理工艺，在形成后形成的材料之前， 材料。

公开(公告)号：KR1020020056059A

公开(公告)日：2002-07-10

申请号：KR1020000085343

申请日：2000-12-29

Applicant: 현대자동차주식회사

Inventor： 조봉래

IPC: C21D9/32

Abstract: PURPOSE: A surface hardening method of automotive transmission gear for micronizing grain size and improving bending fatigue property is provided. CONSTITUTION: In a surface hardening method of automotive transmission gear, the present invention is characterized in that after conventional vacuum decarburization and gas quenching operations, automotive transmission gear is reheated in the temperature range of 820-850°C for 20-30 minutes, and then gas quenching or oil quenching is conducted. Gas quenching operation is characterized by using a reductive gas selected from N2, H2 and He.

Abstract translation: 目的：提供一种用于微粒化和改善弯曲疲劳性能的汽车传动齿轮的表面硬化方法。 构成：在汽车传动齿轮的表面硬化方法中，本发明的特征在于，在常规的真空脱碳和气体淬火操作之后，将汽车传动齿轮在820-850℃的温度范围内再加热20-30分钟， 然后进行气体淬火或油淬。 气体淬火操作的特征在于使用选自N2，H2和He的还原气体。

公开(公告)号：KR1020010018102A

公开(公告)日：2001-03-05

申请号：KR1019990033921

申请日：1999-08-17

Applicant: 현대자동차주식회사

Inventor： 조봉래 ,  성인용

IPC: C22C9/02 ,  C22C1/04

Abstract: PURPOSE: A bronze based sintered material for bush of an exhaust gas recirculation valve is provided to decrease a coefficient of thermal expansion and improve lubricating properties and indentation hardness by adding certain amounts of C and Fe to an existing bronze based sintered material alloy material base in a bronze based sintered material for bush of an exhaust gas recirculation valve. CONSTITUTION: A bronze based sintered material for bush of an exhaust gas recirculation valve contains a main material of Cu, 0.8 to 1.5 wt.% of C, 1.0 to 1.8 wt.% of Fe, 8.0 to 11.0 wt.% of Sn, and 3 wt.% of other impurities. The bronze based sintered material for bush of an exhaust gas recirculation valve has a density of 6.8 to 7.2 g/mm3. A bronze based sintered material for bush of an exhaust gas recirculation valve solves problems of breakaway or burning and heat cracks due to insufficient indentation strength and demonstrates original exhaust gas recirculation function, thereby doubling effect of smoke improvement.

Abstract translation: 目的：提供一种用于废气再循环阀衬套的青铜基烧结材料，以通过向现有的青铜基烧结材料合金材料基底添加一定量的C和Fe来降低热膨胀系数，并提高润滑性能和压痕硬度 用于排气再循环阀衬套的青铜基烧结材料。 构成：用于废气再循环阀衬套的青铜基烧结材料包含Cu的主要材料，C：0.8-1.5重量％，C：1.0-1.8重量％，Sn：8.0-1.11重量％，Sn： 3重量％的其他杂质。 用于废气再循环阀衬套的青铜基烧结材料的密度为6.8至7.2g / mm 3。 用于废气再循环阀衬套的青铜基烧结材料解决了由于压痕强度不足而导致的分离或燃烧和热裂纹问题，并表现出原有的废气再循环功能，从而提高烟气的双重效果。

公开(公告)号：KR1019990019266A

公开(公告)日：1999-03-15

申请号：KR1019970042621

申请日：1997-08-29

Applicant: 현대자동차주식회사

Inventor： 조봉래

IPC: B60H1/00

Abstract: 본 발명은 자동차용 공조장치에 관한 것으로, 자동차 실내의 쾌적함을 유지하기 위하여 실내로 공급되는 에어컨의 냉기나 히터의 온기의 공급을 위한 공조장치의 구조를 단순하도록 일체화하여 설치공간의 확보가 용이하며 공기의 누설에 따른 손실을 최대한 방지할 수 있도록 하기 위하여 제1댐퍼에 의하여 해당부위로 공기를 선택적으로 공급하는 분출구가 상측에 구비되며 하측에는 외부의 공기를 흡입하여 송풍구를 통하여 공급하는 송풍기가 구비되는 케이스 본체와, 상기 케이스 본체 내부의 상기 제1댐퍼의 하측에는 통로의 개폐와 공기의 통과를 제어하는 제2댐퍼 및 상기 제2댐퍼에 의하여 공기의 유입이 제어되는 히터가 구비되고 상기 제2댐퍼의 하측에는 통로의 개폐와 공기의 통과를 제어하는 제3댐퍼 및 상가 제3댐피에 의하여 공기의 유� �이 제어되는 증발기를 구비하여 상기 송풍기에 의하여 케이스본체의 내부로 유입되는 공기를 제2댐퍼 및 제3댐퍼에 의하여 히터 및 증발기로 유입되는 것을 제어하며 제1댐퍼에 의하여 해당부위로 공급되도록 한 자동차용 공조장치에 관한 것이다.

公开(公告)号：KR1019970011544A

公开(公告)日：1997-03-27

申请号：KR1019950026741

申请日：1995-08-26

Applicant: 현대자동차주식회사

Inventor： 조봉래

IPC: F16H7/08

Abstract: 본 발명은 컴푸레서 장착용 구조물(10)에 관한 것이다. 힌지축(22)을 중심으로 제2브래킷(14)을 소정의 지점으로 선회시키고나서, 제1브래킷(12)의 구멍(20)과 제2브래킷(14)의 궁형 슬로트(18)를 관통하여 보울트를 통과시키고 반대쪽에서 너트로 조임으로써, 벨트의 장력조절이 이루어지게 된다.