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公开(公告)号：KR1020110057929A
公开(公告)日：2011-06-01
申请号：KR1020090114559
申请日：2009-11-25
CPC classification number: G01N3/08 , G01M13/00 , G01N3/56 , G01N2203/0292
Abstract: PURPOSE: A method for testing the chipping and corrosion resistances of a high tension coil spring is provided to improve the production quality of a vehicle by preventing field claims. CONSTITUTION: A method for testing the chipping and corrosion resistances of a high tension coil spring is as follows. A high tension coil spring(1) is installed inside a gravel catapult. Gravel(3) is fired to the high tension coil spring. The high tension coil spring is put into a chamber and salty water is sprayed to the high tension coil spring. The high tension coil spring is mounted on a durability tester and tension and compression tests are repeated. The high tension coil spring is maintained at a temperature of -30°C or below for about 2 hours. The high tension coil spring is rotated to 360° by a motor(5) for 20 seconds. The high tension coil spring is compressed and salty water is sprayed to the high tension coil spring.
Abstract translation: 目的：提供一种用于测试高张力螺旋弹簧的耐磨损性和耐腐蚀性的方法，以通过防止现场声称来改善车辆的生产质量。 构成：用于测试高张力螺旋弹簧的切屑和耐腐蚀性的方法如下。 高压螺旋弹簧（1）安装在砂砾弹射器的内部。 砾石（3）被发射到高压螺旋弹簧。 将高压螺旋弹簧放入室内，向高压螺旋弹簧喷洒咸水。 高耐力螺旋弹簧安装在耐久性试验机上，重复进行张力和压缩试验。 高压螺旋弹簧保持在-30℃或更低的温度下约2小时。 高压螺旋弹簧通过马达（5）旋转到360°，持续20秒。 高压螺旋弹簧被压缩，咸水喷到高压螺旋弹簧上。
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公开(公告)号：KR1020120133746A
公开(公告)日：2012-12-11
申请号：KR1020110052564
申请日：2011-06-01
Applicant: 현대자동차주식회사
CPC classification number: C22C38/38 , C21D8/065 , C21D9/02 , C22C38/20 , C22C38/22 , C22C38/26 , C22C38/32 , C22C38/34 , F16F1/02
Abstract: PURPOSE: A coil spring with reinforced corrosion resistance and a manufacturing method thereof are provided to obtain extra design strength and to enhance corrosion resistance by improving the strength of an existing material. CONSTITUTION: A method for manufacturing a coil spring with reinforced corrosion resistance comprises a wire process of a steel material, a peeling process, a controlled heat treatment process, and a quenching and tempering process. The main component of the steel material is Fe. The steel material is composed of 1.3-1.8 wt% of Si, 1.5-3.0 wt% of Ni, 1.0-1.2 wt% of Cr, 0.1-0.3 wt% of Mo, 0.3-0.4 wt% of Cu, 0.02-0.04 wt% of Nb, 0.005-0.025 wt%of B, and other indispensable impurities. The controlled heat treatment process air-cools after maintaining a wire at a predetermined high temperature for a predetermined time to modify grains and to homogenize tissues. The quenching and tempering process applies the strength and toughness to the homogenized wire. [Reference numerals] (AA) Temperature; (BB) Controlled heat treatment; (CC) Quenching; (DD) Tempering; (EE) Time
Abstract translation: 目的：提供具有增强耐腐蚀性的螺旋弹簧及其制造方法，以通过提高现有材料的强度来获得额外的设计强度和增强耐腐蚀性。 构成：用于制造具有增强的耐腐蚀性的螺旋弹簧的方法包括钢材的丝线加工，剥离过程，受控热处理工艺和淬火和回火处理。 钢材的主要成分为Fe。 钢材由Si：1.3〜1.8重量％，Ni：1.5〜3.0重量％，Cr：1.0〜1.2重量％，Mo：0.1〜0.3重量％，Cu：0.3〜0.4重量％，Cu：0.02〜0.04重量％ Nb的百分比，B的0.005-0.025重量％和其它不可缺少的杂质。 将控制的热处理工序在将线材保持在预定的高温下预定时间之后空气冷却以改变晶粒并均匀组织。 淬火和回火工艺对均质钢丝的强度和韧性应用。 （标号）（AA）温度; （BB）受控热处理; （CC）淬火; （DD）回火; （EE）时间
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Patent Agency Ranking
公开(公告)号：KR1020130004625A
公开(公告)日：2013-01-14
申请号：KR1020110065757
申请日：2011-07-04
Applicant: 현대자동차주식회사
Abstract: PURPOSE: A high-carbon steel wheel bearing and a heat-treating method thereof are provided to improve a material and a process, thereby optimizing the contact-service life of the high-carbon steel wheel bearing component under the condition of an identical load. CONSTITUTION: A high-carbon steel wheel bearing comprises 1.00 to 1.10 wt% of C, 0.50 to 0.70 wt% of Si, 1.00 to 1.20 wt% of Mn, 1.45 to 1.65 wt% of Cr, 0.20 to 0.40 wt% of Ni, 0.02 to 0.04 wt% of Nb, less than 0.025 wt% of P, and less than 0.008 wt% of S. The high-carbon steel wheel bearing includes an inner race, an outer race, and plural balls. The inner race is assembled to be inserted into the outer circumference of a wheel hub. The outer race is assembled to be inserted into the inner circumference surface of a knuckle. The plural balls are interposed between the inner race and the outer race for relatively rotating. The heat-treating method of the high-carbon steel wheel bearing comprises: A step of quenching a bearing-shaped steel component for 60 minutes at the temperature of 840 degrees Celsius; a step of hardening the quenched component for 30 minutes at the temperature of 780 degrees Celsius; and a step of tempering the hardened component at 60 minutes at the temperature of 175 degrees Celsius. [Reference numerals] (AA) Quenching OIL temperature: 115°C
Abstract translation: 目的：提供高碳钢轮轴承及其热处理方法以改善材料和工艺，从而在相同载荷的条件下优化高碳钢轮轴承部件的接触寿命。 构成：高碳钢轮轴承包含C：1.00〜1.10重量％，Si：0.50〜0.70重量％，Mn：1.00〜1.20重量％，Cr 1.45〜1.65重量％，Ni：0.20〜0.40重量％ 0.02〜0.04重量％的Nb，小于0.025重量％的P和小于0.008重量％的S。高碳钢轮轴承包括内圈，外圈和多个球。 内圈组装成插入轮毂的外周。 外圈组装成插入转向节的内周面。 多个球插入在内座圈和外座圈之间用于相对旋转。 高碳钢轮轴承的热处理方法包括：在840℃的温度下淬火60分钟的轴承形状的钢部件的步骤; 在780摄氏度的温度下淬火组分淬火30分钟的步骤; 以及在175摄氏度的温度下在60分钟回火硬化组分的步骤。 （标号）（AA）淬火油温度：115℃
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公开(公告)号：KR101822295B1
公开(公告)日：2018-01-26
申请号：KR1020160116074
申请日：2016-09-09
Applicant: 현대자동차주식회사
CPC classification number: 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
Abstract: 중량%로, 탄소(C) : 0.1~0.5%, 실리콘(Si) : 0.1~2.3%, 망간(Mn) : 0.3~1.5%, 크롬(Cr) : 1.1~4.0%, 몰리브덴(Mo) : 0.3~1.5%, 니켈(Ni) : 0.1~4.0%, 바나듐(V) : 0.01~0.50%, 보론(B) : 0.001~0.010%, 니오븀(Nb) : 0.05~0.50%, 잔부철(Fe) 및기타불가피한불순물을포함하는고강도특수강이소개된다.
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公开(公告)号：KR101405843B1
公开(公告)日：2014-06-11
申请号：KR1020120052840
申请日：2012-05-18
Inventor： 서동림
CPC classification number: Y02P10/253
Abstract: 본 발명은, 세립강의 단조 공법에 있어서, 상기 세립강은 탄소(C) 0.45 내지 0.55 중량%, 규소(Si) 0.05 내지 0.15 중량%, 망간(Mn) 0.2 내지 0.5 중량%, 붕소(B) 0.005 내지 0.025 중량% 및 나이오븀(Nb) 0.02 내지 0.07 중량% 및 알루미늄(Al) 0.01 내지 0.05 중량%을 함유하고, 상기 세립강으로 일정한 모양과 크기를 갖는 잉곳(ingot)으로 가공하는 단계;와 상기 잉곳을 단조 공정을 통해 1차성형하는 단계;와 1차성형된 잉곳의 온도를 미리 정해진 기준온도 이상으로 유지한 상태에서 단조 공정을 통해 2차성형하는 단계; 및 경화능 향상을 위해 단조 공정이 완료된 잉곳을 열처리하는 단계;를 포함한다.
상기와 같은 구성의 본 발명은, 각각의 단조 공정 사이에 실시되던 어닐링 과정을 삭제할 수 있다. 이에 따라 생산 비용이 절감되고 생산 시간이 축소될 뿐만 아니라 어닐링 과정에서 배출되던 유해물질을 발생시키지 않으므로 환경오염을 방지할 수 있는 효과를 제공한다.-
公开(公告)号：KR1020150080344A
公开(公告)日：2015-07-09
申请号：KR1020130169408
申请日：2013-12-31
Applicant: 현대자동차주식회사 , 기아자동차주식회사 , 주식회사 세아창원특수강
Abstract: 본발명은강도와인성등이우수한단조용금형에적용될수 있는조성물에관한것으로, 보다상세하게는나이오븀(Nb) 0.10~0.20중량%, 보론(B) 0.001~0.002중량%, 크로뮴(Cr) 6.00~8.00중량%, 바나듐(V) 0.40~0.60중량%, 몰디브넘(Mo) 0.70~0.90중량% 및잔부의철(Fe)과불가피한불순물을포함함으로써, 제조원가는줄이는동시에강성및 인성등을향상시킬수 있는단조용금형조성물에관한것이다.
Abstract translation: 本发明涉及适用于具有优异的强度和韧性的锻造模具的组合物，更具体地说，涉及一种由0.10-0.20重量％的Nb，0.001-0.002重量％的B，6.00重量％组成的锻造用组合物 -8.00重量％的Cr，0.40-0.60重量％的V，0.70-0.90重量％的Mo，剩余量的Fe和杂质。 因此，锻造用组合物降低生产成本，提高强度和韧性。
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公开(公告)号：KR1020130128811A
公开(公告)日：2013-11-27
申请号：KR1020120052840
申请日：2012-05-18
Inventor： 서동림
CPC classification number: Y02P10/253 , C22C38/12 , B21J5/00 , C21D1/42 , C22C38/02 , C22C38/04 , C22C38/06
Abstract: The forging process of ultra fine grained steel of the present invention comprises the ultra fine grained steel including as a main component, and consisting of, in wt%: C: 0.45-0.55; Si: 0.05-0.15, Mn: 0.2-0.5; B: 0.005-0.025; Nb: 0.02-0.07; and Al: 0.01-0.05. The forging process of the ultra fine grained steel includes a step for processing the ultra fine grained steel into ingots with fixed shapes and sizes; a forming step for first forming the ingots; a forming step for second forming the first formed ingots at temperatures predetermined over the predetermined reference temperatures by using a forging process; and a step for improving the hardenability of the ingots by heat-treating the ingots processed in the forging process. The present invention of the configuration is capable of deleting annealing processes implemented between forging processes; and, therefore provides the effect which is capable not only of reducing production costs and hours, but also of preventing environmental contamination by preventing toxic substances from being generated in the annealing process. [Reference numerals] (AA) Applying high formability material, Spheroidizing annealing unnecessary;(BB) Secondly inject within 3 seconds after 200 heat generation in first try (Maintain over 150 );(CC) Thirdly inject within 5 seconds after 200 heat generation in second try (Maintain over 150 );(DD) Normalizing;(EE) Processing/high frequency
Abstract translation: 本发明的超细晶粒钢的锻造方法包括以重量％：C：0.45〜0.55，以重量％计的超细晶粒钢。 Si：0.05〜0.15，Mn：0.2〜0.5; B：0.005-0.025; Nb：0.02-0.07; 和Al：0.01-0.05。 超细晶粒钢的锻造工序包括将超细晶粒钢加工成具有固定形状和尺寸的锭的步骤; 用于首先形成锭的成形步骤; 用于通过使用锻造工艺在预定参考温度预定的温度下第二次形成第一成形锭的成形步骤; 以及通过对在锻造过程中加工的锭进行热处理来提高锭的淬透性的步骤。 该构造的本发明能够删除在锻造工艺之间实现的退火工艺; 因此提供不仅能够降低生产成本和时间，而且能够防止在退火工序中产生有害物质而防止环境污染的效果。 （AA）应用高成形性材料，不需要球化退火;（BB）第二次在200次发热后的3秒内进行第二次注射（维持在150℃以上）;（CC）在200次发热后的5秒内进行第三次注射 第二次尝试（维持超过150）;（DD）归一化;（EE）处理/高频
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