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公开(公告)号：KR101795277B1
公开(公告)日：2017-11-08
申请号：KR1020160076981
申请日：2016-06-21
IPC分类号： C22C38/40 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/02 , C22C38/04 , C22C38/06
CPC分类号： C22C38/54 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/34 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/40
摘要： 본발명은서스펜션용으로사용가능하도록인장강도와피로수명을향상시킨내식성이우수한고강도스프링강에관한것이다. 본발명의일 실시형태에따른차량의서스펜션에사용되는코일스프링강으로서, 중량%로, C: 0.4 ~ 0.9%, Si: 0.9 ~ 2.3%, Mn: 0.5 ~ 1.2%, Cr: 0.6 ~ 1.5%, Mo: 0.01 ~ 0.5%, Ni: 0.01 ~ 0.9%, V: 0.5% 이하(0% 제외), Nb: 0.5% 이하(0% 제외), Ti: 0.3% 이하(0% 제외), Co: 1.0% 이하(0% 제외), B: 0.1% 이하(0% 제외), W: 0.3% 이하(0% 제외), Cu: 0.3% 이하(0% 제외), Al: 0.3% 이하(0% 제외), N: 0.03% 이하(0% 제외), O: 0.003% 이하(0% 제외), 나머지 Fe 및기타불가피한불순물을포함한다.
摘要翻译： 本发明涉及一种耐腐蚀性优异，拉伸强度和疲劳寿命得到改善以用于悬浮的高强度弹簧钢。 螺旋弹簧钢，其在根据本发明的一个实施例的车辆悬架使用的，以重量％计，C：0.4〜0.9％以下，Si：0.9〜2.3％以下，Mn：0.5〜1.2％以下，Cr：0.6〜1.5％ ，Mo：0.01〜0.5％，Ni：0.01〜0.9％，V：0.5％以下（不含0％），Nb：0.5％ W：0.3％以下（不含0％），Cu：0.3％以下（不含0％），Al：0.3％以下（0％以下） ），N：不超过0.03％（不包括0％），O：不超过0.003％（不包括0％），其余为Fe和其他不可避免的杂质。
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公开(公告)号：KR101685486B1
公开(公告)日：2016-12-13
申请号：KR1020150052243
申请日：2015-04-14
申请人： 현대자동차주식회사
CPC分类号： C22C38/54 , C21D1/58 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C23C8/22 , C23C8/80
摘要： 본발명은내구성을향상시킨침탄합금강및 이의제조방법에관한것으로서, 보다상세하게는전체합금강중량에대하여, 전체합금강중량에대하여, 철(Fe)을주 성분으로하여탄소(C) 0.1 ~ 0.35 중량%, 실리콘(Si) 0.1 ~ 2.0 중량%, 망가니즈(Mn) 0.1 ~ 1.5 중량%, 크로뮴(Cr) 1.5 ~ 3.0 중량%, 몰리브데넘(Mo) 0.2 ~ 0.5 중량%, 니오븀(Nb) 0 중량% 초과 0.07 중량% 이하를포함함으로써, 침탄합금강의경도, 강도, 인성, 피로강도및 피로수명등 내구성을향상시키는효과가있으며, 상기침탄합금강의고강도화를가능하게하여, 박육화및 약 20 %의경량화등을통해, 자동차설계의자유도를확보하고, 제조원가를절감할수 있는효과가있는침탄합금강및 이의제조방법에관한것이다.
摘要翻译： 渗碳合金钢基于渗碳合金钢的总重量为0.1〜0.35重量％的碳，0.1〜2.0重量％的硅，0.1〜1.5重量％的锰，1.5〜3.0重量％的铬，0.2〜0.5重量％ 钼，大于0至0.07重量％的铌，余量为铁。
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公开(公告)号：KR1020160122874A
公开(公告)日：2016-10-25
申请号：KR1020150052243
申请日：2015-04-14
申请人： 현대자동차주식회사
CPC分类号： C22C38/54 , C21D1/58 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C23C8/22 , C23C8/80
摘要： 본발명은내구성을향상시킨침탄합금강및 이의제조방법에관한것으로서, 보다상세하게는전체합금강중량에대하여, 전체합금강중량에대하여, 철(Fe)을주 성분으로하여탄소(C) 0.1 ~ 0.35 중량%, 실리콘(Si) 0.1 ~ 2.0 중량%, 망가니즈(Mn) 0.1 ~ 1.5 중량%, 크로뮴(Cr) 1.5 ~ 3.0 중량%, 몰리브데넘(Mo) 0.2 ~ 0.5 중량%, 니오븀(Nb) 0 중량% 초과 0.07 중량% 이하를포함함으로써, 침탄합금강의경도, 강도, 인성, 피로강도및 피로수명등 내구성을향상시키는효과가있으며, 상기침탄합금강의고강도화를가능하게하여, 박육화및 약 20 %의경량화등을통해, 자동차설계의자유도를확보하고, 제조원가를절감할수 있는효과가있는침탄합금강및 이의제조방법에관한것이다.
摘要翻译： 本发明涉及碳氮化合金钢，提高耐久性的方法，更具体地，基于总重量的合金钢，基于总的合金钢（重量），铁（Fe）与eulju元素碳（C）0.1〜0.35％（重量） ，硅（Si）0.1〜2.0％（重量），锰（Mn）0.1〜1.5重量％，铬（Cr）1.5〜3.0重量％，钼（Mo）0.2〜0.5％（重量），铌（Nb）0重量 通过包括％小于0.07重量％时的碳氮化合金钢uigyeong也，强度，韧性，疲劳强度和疲劳寿命等，并且提高耐久性的效果，并允许提高碳氮化合金钢的强度，上述间抽的重量和约20％ 本发明涉及一种具有确保汽车设计的自由度并降低制造成本的效果的渗碳合金钢及其制造方法。
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公开(公告)号：KR1020150072996A
公开(公告)日：2015-06-30
申请号：KR1020130160773
申请日：2013-12-20
申请人： 현대자동차주식회사 , 동의대학교 산학협력단
CPC分类号： B23K11/11 , B23K11/16 , B23K11/166 , B23K11/241 , B23K2203/04
摘要： 8~9kA의전류를 1~3cy동안인가하는제1펄스단계; 1~3cy동안냉각하는제1쿨링단계; 제1펄스단계보다작은전류를인가하는제2펄스단계; 1~3cy동안냉각하는제2쿨링단계; 및제2펄스단계보다큰 전류를인가하는제3펄스단계;를포함하는고강도강판점용접방법이소개된다.
摘要翻译： 本发明涉及一种用于在点焊中使用脉冲焊接条件确保最大熔核直径的高强度钢板的点焊方法。 点焊方法包括：对1-3圈施加8-9kA的电流的第一脉冲步骤; 冷却1-3圈的第一个冷却步骤; 第二脉冲步骤，施加小于第一脉冲步长的电流; 冷却1-3圈的第二冷却步骤; 以及施加比第二脉冲步长大的电流的第三脉冲步骤。
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公开(公告)号：KR101090822B1
公开(公告)日：2011-12-08
申请号：KR1020090032093
申请日：2009-04-14
CPC分类号： C22C38/02 , C21D6/005 , C21D6/02 , C21D8/0236 , C21D8/0273 , C21D2211/004 , C21D2211/005 , C21D2211/008 , C22C38/04 , C22C38/06 , C22C38/14
摘要： 차량의차체부품용에적용되어우수한경량및 강도를갖는트윕강판및 그제조방법이소개된다. 이고강도트윕강판은탄소 0.15∼0.30중량%, 실리콘 0.01∼0.03중량%, 망간 15∼25중량%, 알루미늄 1.2∼3.0중량%, 인 0.020중량% 이하, 황 0.001∼0.002중량%, 타이타늄 4.0~5.0중량%, 나머지철 및기타불가피한불순물을포함하는조성을갖는다. 이러한조성을통해항복강도를 550MPa급으로증가시키고연신률을향상시킬수 있다.
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公开(公告)号：KR1020100106649A
公开(公告)日：2010-10-04
申请号：KR1020090024715
申请日：2009-03-24
CPC分类号： C21D8/0236 , C21D8/0226 , C22C38/02 , C22C38/04 , C22C38/06
摘要： PURPOSE: An ultra-high strength twip steel sheets and a manufacturing method thereof is provided to secure high yield strength by controlling an annealing process and a cold rolling process. CONSTITUTION: A manufacturing method of an ultra-high strength twip steel sheets comprise next steps. The hot-rolling steel plate of an austenite grain structure is cold-rolled at a cold compression rate 60~73.5%. A cooling-rolled steel sheet is continuously annealing-heat treated at 900~1000°C. A thermal processing annealing time is 2~5 minutes. A slab which is continuously casted and hot rolled at 1100~1300°C, and cooled at 60°C/sec.
摘要翻译： 目的：提供一种超高强度的双面钢板及其制造方法，通过控制退火处理和冷轧工序来确保高的屈服强度。 构成：超高强度双面钢板的制造方法包括以下步骤。 奥氏体晶粒结构的热轧钢板以60〜73.5％的冷压缩率进行冷轧。 冷轧钢板在900〜1000℃下进行连续热处理。 热处理退火时间为2〜5分钟。 在1100〜1300℃下连续铸造并热轧的板坯，以60℃/秒的速度冷却。
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公开(公告)号：KR1020100105950A
公开(公告)日：2010-10-01
申请号：KR1020090024322
申请日：2009-03-23
申请人： 현대자동차주식회사
CPC分类号： C21D8/0252 , C22C38/02 , C22C38/42 , C22C38/44 , C22C38/58
摘要： PURPOSE: An ultra-high strength trip steel sheets and a manufacturing method thereof, which increases elongation by 30%, is provided to maintain the mechanical stability of remaining austenite by increase the elongation. CONSTITUTION: A manufacturing method of an ultra-high strength trip steel sheets comprises next steps. A hot-rolled prime is cooled to at cooling speed more than 50°C/sec at less than 650°C. A frozen hot-rolled prime is reeled at a coiling temperature of 550~650°C. The ultra-high strength trip steel sheets comprises carbon 0.05~0.155 weight%, silicon 0.05~1.05 weight%, manganese 1.0~2.20 weight%, chrome less than 0.1 weight%, molybdenum less than 0.1 weight%, nickel less than 0.1 weight%, copper less than 0.1 weight%, iron and inevitable impurity.
摘要翻译： 目的：提供将伸长率提高30％的超高强度脱模钢板及其制造方法，以通过延长伸长率来保持奥氏体的机械稳定性。 构成：超高强度脱模钢板的制造方法包括以下步骤。 在低于650℃的温度下将热轧原料冷却至大于50℃/秒的冷却速度。 冷冻热轧原料卷取在550〜650℃的卷取温度。 超高强度脱模钢板包含0.05〜0.155重量％的碳，0.05〜1.05重量％的硅，1.0〜2.20重量％的铬，小于0.1重量％的铬，小于0.1重量％的钼，小于0.1重量％的镍， ，铜小于0.1重量％，铁和不可避免的杂质。
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公开(公告)号：KR1020100020692A
公开(公告)日：2010-02-23
申请号：KR1020080079405
申请日：2008-08-13
CPC分类号： C22C38/02 , C21D8/0405 , C21D8/0421 , C21D2211/001 , C22C38/04 , C22C38/06
摘要： PURPOSE: An ultra-high strength twip steel sheet and a manufacturing method thereof are provided to manufacture vehicle body parts of complex shape without crack or burst and obtain a lightweight vehicle body. CONSTITUTION: An ultra-high strength twip steel sheet of austenite matrix tissue including manganese 15~25 weight% is characterized as follows. The brass orientation is restricted in a thermal treatment process after cold rolling. In the recrystallization texture, {352} is developed as main orientation. The average plastic deformation ratio is 1.2 or greater. The composition includes, in weight percentage, carbon 0.15~0.30%, silicon 0.01~0.03%, manganese 15~25%, aluminum 1.2~3.0%, phosphorus 0.020% or less, sulfur 0.001~0.002%, and the rest iron. The Σ3 grain boundary fraction of misorientation angle of 60° is 10% or less. The grain boundary fraction of misorientation angle less than 5° is 50% or greater. The grain boundary fraction of misorientation angle over 15° is 40% or less.
摘要翻译： 目的：提供一种超高强度薄板钢板及其制造方法，以制造没有裂纹或爆裂的复杂形状的车身部件，并获得轻质车身。 构成：含有15〜25重量％的锰的奥氏体基质组织的超高强度的双面钢板的特征如下。 在冷轧后的热处理过程中，黄铜取向受到限制。 在再结晶织构中，{352} <221>被开发为主要取向。 平均塑性变形率为1.2以上。 组成包括重量百分比为0.15〜0.30％，硅0.01〜0.03％，锰15〜25％，铝1.2〜3.0％，磷0.020％以下，硫0.001〜0.002％，其余为铁。 60度方位角的Σ3晶界分数为10％以下。 取向角小于5°的晶界分数为50％以上。 15°以上的取向角的晶界分数为40％以下。
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公开(公告)号：KR1020070107833A
公开(公告)日：2007-11-08
申请号：KR1020060040295
申请日：2006-05-04
申请人： 현대자동차주식회사
发明人： 홍승현
IPC分类号： C22F1/06
摘要： A method for the improvement of room temperature formability of a Mg alloy sheet through texture control is provided, wherein the method can increase elongation of the sheet by preventing the development of (0002) planes such that nonbasal slip is mainly generated, and can reduce ÝÈr substantially while increasing a plastic strain ratio(r value). An improving method of room temperature formability of a Mg alloy sheet through texture control is characterized in that a process of manufacturing an AZ31B Mg alloy sheet comprises performing, over six steps, hot rolling of a slab-shaped Mg ingot in a mushy state discharged through twin rolls, wherein lower rolls for hot rolling are driven in the first step such that a reduction ratio is maintained to 5 to 20% to prevent burning of the rolls with a slab(ingot), the lower rolls are maintained in an idle state in the second to fifth steps such that shear deformation instead of plane strain deformation conditions of rolling is applied to a Mg ingot, and the lower rolls are driven again in the final six step such that the plane strain deformation is carried out.
摘要翻译： 提供通过纹理控制提高Mg合金板的室温成形性的方法，其中该方法可以通过防止（0002）面的发展来增加片材的伸长率，使得主要产生非巴氏滑移，并且可以减少ÝÈr 基本上同时增加塑性应变比（r值）。 通过纹理控制的Mg合金板的室温成形性的改进方法的特征在于，制造AZ31B Mg合金板的方法包括在六个步骤中进行通过排出的糊状状态的板状Mg锭的热轧 双辊，其中用于热轧的下辊在第一步骤中被驱动，使得减速比保持在5至20％以防止用板坯（锭）燃烧辊，下辊保持在空转状态 第二到第五步骤，使得剪切变形代替轧制的平面应变变形条件施加到Mg锭，并且在最后六个步骤中再次驱动下辊，使得进行平面应变变形。
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公开(公告)号：KR100757586B1
公开(公告)日：2007-09-10
申请号：KR1020060039069
申请日：2006-04-29
申请人： 현대자동차주식회사
发明人： 홍승현
IPC分类号： B22D21/04
摘要： A continuous casting method of an aluminium-magnesium alloy sheet is provided to manufacture a sheet having the same moldability even for a final annealing time of a process of producing the slab by an existing IC method by rolling a surface of a slab at a thickness reduction ratio of 2 to 3% and subsequently performing a cold rolling process and a final rolling process. A continuous casting method of an aluminium-magnesium alloy sheet comprises: a continuous casting step of passing a melt through twin rolls(10) to produce a slab(12) with a predetermined thickness; a step of cold rolling the slab; and a step of heat treating the cold rolled sheet at 300 deg.C for a predetermined time, wherein the continuous casting method further comprises a step of passing the slab through rolling rolls(11) between the continuous casting step and the cold rolling step to roll the slab at a thickness reduction ratio of 2 to 3%.
摘要翻译： 提供铝 - 镁合金板的连续铸造方法来制造具有相同成型性的片材，即使在通过现有的IC法制造板坯的过程的最终退火时间下，通过以厚度减小方式轧制板坯的表面 比例为2〜3％，随后进行冷轧工序和最终轧制工序。 铝镁合金板的连续铸造方法包括：使熔体通过双辊（10）以制造具有预定厚度的板坯（12）的连续铸造步骤; 冷轧板坯的一步; 以及将冷轧板在300℃下热处理预定时间的步骤，其中连续铸造方法还包括使板坯通过连续铸造步骤和冷轧步骤之间的轧辊（11）的步骤， 以2〜3％的厚度压缩比轧制板坯。
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