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31. 发明公开

KR1020130134331A 열연강판 및 그 제조 방법과, 이를 이용한 강관 제조 방법 有权
标题翻译：热轧钢板，制造热轧钢板的方法和使用热轧钢板制造油管国家产品的方法
公开(公告)号：KR1020130134331A
公开(公告)日：2013-12-10
申请号：KR1020120057776
申请日：2012-05-30
申请人： 현대제철 주식회사
发明人： 정준호 , 이승하 , 김성주 , 박영국 , 임갑수 , 천부현
IPC分类号： C21D8/02 , C22C38/00 , C21D9/46 , C22C38/12
CPC分类号： C21D8/0226 , C21D1/28 , C21D8/0263 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12
摘要： Disclosed are a hot-rolled steel sheet, a manufacturing method thereof which can be normalized at low temperatures by controlling alloy elements and process conditions, and a method for manufacturing a steel pipe using the hot-rolled steel sheet. The manufacturing method of the hot-rolled steel sheet according to the present invention comprises the steps of: reheating a slab composed of 0.20-0.35 wt.% of C, 0.15-0.30 wt.% of Si, 1.2-2.0 wt.% of Mn, 0.2-0.3 wt.% of V, 0.02-0.05 wt.% of Al, 0.015 wt.% or less of P, 0.005 wt.% or less of S, 0.002 wt.% or less of Ca, 0.008 wt.% or less of N, and the rest of Fe and inevitable impurities; hot-rolling the reheated slab; and cooling the hot-rolled slab, and coiling the slab at 550-620°C, which is a coiling temperature (CT). [Reference numerals] (AA) START;(BB) END;(S110) Slab reheating (SRT : 1150-1300°C);(S120) Hot-rolling ((FDT : 840-880°C);(S130) Cooling/coiling(CT : 600-660°C)
摘要翻译：公开了一种热轧钢板，其制造方法可以通过控制合金元素和加工条件在低温下进行归一化，以及使用该热轧钢板的钢管的制造方法。根据本发明的热轧钢板的制造方法包括以下步骤：将由0.20-0.35重量％的C，0.15-0.30重量％的Si，1.2-2.0重量％的Si， Mn，0.2-0.3重量％的V，0.02-0.05重量％的Al，0.015重量％以下的P，0.005重量％以下的S，0.002重量％以下的Ca，0.008重量％％以下的N，剩余的Fe和不可避免的杂质; 热轧再热板; 并冷却该热轧板坯，并以550-620℃（即卷取温度）卷取板坯。（标号）（AA）START;（BB）END;（S110）板坯再加热（SRT：1150-1300℃）;（S120）热轧（（FDT：840-880℃））;（S130）冷却 /卷取（CT：600-660℃）

32. 发明公开

KR1020130120932A 슬라브 지지장치 有权
标题翻译：支持SLAB的设备
公开(公告)号：KR1020130120932A
公开(公告)日：2013-11-05
申请号：KR1020120044181
申请日：2012-04-26
申请人： 현대제철 주식회사
发明人： 박영국 , 이승하 , 임갑수 , 이성훈 , 정진우 , 조상구 , 조승한
IPC分类号： B21B15/00 , B21B39/00 , B21B37/22
摘要： The present invention relates to a device for supporting slabs, comprising a control unit controlling the width of the slab by pressurizing both sides of the slab, an entrance pinch roller unit arranged at an entrance of the control unit and supporting the slab, and an exit pinch roller unit arranged at an exit of the control unit and supporting the slab. The exit pinch roller units are divided to separately move the slab so that the flow is suppressed while the slab passes through them.
摘要翻译：本发明涉及一种用于支撑板坯的装置，包括：控制单元，通过对板坯的两侧加压来控制板坯的宽度;布置在控制单元的入口处并支撑板坯的入口压带辊单元;以及出口夹紧辊单元布置在控制单元的出口处并支撑板坯。出口夹送辊单元被分开以分开地移动板坯，使得当板坯通过它们时，流动被抑制。

33. 发明公开

KR1020130110627A 고강도 강판 및 그 제조 방법 有权
标题翻译：高强度钢板及其制造方法
公开(公告)号：KR1020130110627A
公开(公告)日：2013-10-10
申请号：KR1020120032740
申请日：2012-03-29
申请人： 현대제철 주식회사
发明人： 이승하 , 고강희 , 김성주 , 도형협 , 양원석 , 정준호
IPC分类号： C21D8/02 , C22C38/00 , C22C38/38 , C21D9/46
CPC分类号： C21D8/10 , C21D1/18 , C21D8/0226 , C21D8/0263 , C21D9/46 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/28 , C22C38/32
摘要： PURPOSE: A high strength steel plate and a manufacturing method thereof are provided to perform a quenching and tempering process after rolling a hot-rolled plate or a cold-rolled plate into a pipe shape, thereby obtaining excellent strength and an elongation ratio. CONSTITUTION: A method for manufacturing a high strength steel plate includes the following steps of: manufacturing a hot-rolled plate or a cold-rolled plate by using a slab plate; rolling the hot-rolled plate or the cold-rolled plate into a pipe shape; annealing and quenching the rolled plate at a temperature of 800-1000°C; and performing a quenching and tempering process tempering at a temperature of 150-550°C for 1 to 30 minutes.
摘要翻译：目的：提供一种高强度钢板及其制造方法，用于在将热轧板或冷轧板轧制成管状之后进行淬火回火处理，从而获得优异的强度和伸长率。构成：制造高强度钢板的方法包括以下步骤：通过使用板坯制造热轧板或冷轧板; 将热轧板或冷轧板轧制成管状; 在800-1000℃的温度下退火和淬火轧制板; 并进行淬火回火处理，在150〜550℃的温度下回火1〜30分钟。

34. 发明公开

KR1020130046575A 권취코일 교정장치 无效
标题翻译：线圈矫正装置
公开(公告)号：KR1020130046575A
公开(公告)日：2013-05-08
申请号：KR1020110111043
申请日：2011-10-28
申请人： 현대제철 주식회사
发明人： 박영국 , 이상호 , 이승하 , 임갑수
IPC分类号： B21C47/00 , B21D1/00
摘要： PURPOSE: A winding coil correction device is provided to control a separation distance between a pair of rotary frames, to secure an opening part in a concave part which is formed by a loading stand and the rotary frames, and to use the rotary frames in pressurizing the circumference of a winding coil in order to correct the shape of the coil. CONSTITUTION: A winding coil correction device includes a loading stand(210), a pair of rotary frames(220), and an angle adjusting unit(300). A winding coil(10) is settled on the loading stand. The pair of rotary frames is connected with each other through a hinge on both end parts of the loading stand, and has the upper parts to adjust the separation distance. The angle adjusting unit is contacted with the outside surface of the rotary frames and rotates the rotary frames by generating a displacement in the nearing or separating axial direction.
摘要翻译：目的：提供绕组线圈校正装置，以控制一对旋转框架之间的间隔距离，以将开口部分固定在由装载台和旋转框架形成的凹部中，并使用旋转框架加压绕组线圈的周长以校正线圈的形状。构成：绕组线圈校正装置包括装载架（210），一对旋转架（220）和角度调节单元（300）。绕组线圈（10）沉降在装载架上。一对旋转框架通过装载台的两端部的铰链彼此连接，并且具有上部以调节间隔距离。角度调节单元与旋转框架的外表面接触，并通过在近轴或分离的轴向产生位移来旋转框架。

35. 发明公开

KR1020130013562A 고강도 강판 및 그 제조 방법 无效
标题翻译：高强度钢和制造高强度钢的方法
公开(公告)号：KR1020130013562A
公开(公告)日：2013-02-06
申请号：KR1020110075273
申请日：2011-07-28
申请人： 현대제철 주식회사
发明人： 이승하 , 도형협 , 이동열
IPC分类号： C21D8/02 , C22C38/00 , C21D9/46 , B21B3/02
CPC分类号： C21D8/0226 , C21D8/0263 , C21D9/46 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06
摘要： PURPOSE: A high strength steel sheet and a manufacturing method thereof are provided to have 440 MPa or more of a tensile strength, 260-310 MPa of a yield point, 35% or more of an elongation, and 0.17 or more of a work hardening exponent by controlling processing conditions and alloy components. CONSTITUTION: A manufacturing method of a high strength steel sheet is as follows. A slab board is composed of 0.14-0.20wt.% of C, 0.01-0.30wt.% of Si, 0.5-1.5wt.% of Mn, 0.01-0.06wt.% of Al, 40ppm or less of V, rest Fe, and inevitable impurities. The slab board is reheated at the 1150-1250°C(S110). The reheated board is hot-rolled at 850-950°C(S120). The hot-rolled board is cooled and wound at 550-650°C(S130). [Reference numerals] (AA) Start; (BB) End; (S110) Slab reheating(SRT: 1150-1250°C); (S120) Hot rolling(FDT: 850-950°C); (S130) Cooling/coiling(CT: 550-650°C)
摘要翻译：目的：提供高强度钢板及其制造方法，其拉伸强度为440MPa以上，屈服点为260〜310MPa，伸长率为35％以上，加工硬化为0.17以上指数通过控制加工条件和合金成分。构成：高强度钢板的制造方法如下。平板坯由0.14-0.20重量％的C，0.01-0.30重量％的Si，0.5-1.5重量％的Mn，0.01-0.06重量％的Al，40ppm或更少的V组成，其余的Fe ，和不可避免的杂质。板坯在1150-1250℃再加热（S110）。再加热板在850-950℃下热轧（S120）。将该热轧板冷却并在550-650℃下卷绕（S130）。（附图标记）（AA）开始; （BB）结束; （S110）板坯再加热（SRT：1150-1250℃）; （S120）热轧（FDT：850-950℃）; （S130）冷却/卷取（CT：550-650℃）

36. 发明授权

KR101185204B1 열연 코일의 변형 방지를 위한 지지 구조물 및 그 삽입 장치 有权
标题翻译：插入内胆线圈以防止塌陷的装置及其插入装置
公开(公告)号：KR101185204B1
公开(公告)日：2012-09-21
申请号：KR1020100094554
申请日：2010-09-29
申请人： 현대제철 주식회사
发明人： 김양곤 , 이승하 , 임현규
IPC分类号： B21C47/30 , B21C47/24 , B21D1/08
摘要： 본 발명은 열연 코일의 변형 방지를 위한 지지 구조물 및 그 삽입 장치에 관한 것으로, 열연 코일의 내경을 통해 삽입되어 외주면이 열연 코일의 내주면에 대면 접촉하여 지지하도록 구비된 접촉지지부와, 접촉지지부의 내측 중심을 따라 길이 방향으로 배치되며 회전 조작이 가능한 스크류축 및 접촉지지부 및 스크류축 사이에 연결 배치되어, 스크류축의 회전 방향에 따라 접촉지지부의 직경을 확장 및 수축 조절하도록 구비된 링크부를 포함하는 구성으로 이루어져, 열연 코일이 충분히 냉각될 때까지 자체 변형이 유발되는 것을 미연에 차단하여, 공정 편의성 및 제품 품질 향상을 함께 도모할 수 있다.

37. 发明授权

KR101140941B1 수소지연파괴 저항성이 우수한 초고강도 강판 및 그 제조방법 有权
标题翻译：具有优异的氢延迟断裂抗性质量和超高强度的钢板及其制造方法
公开(公告)号：KR101140941B1
公开(公告)日：2012-05-03
申请号：KR1020090057863
申请日：2009-06-26
申请人： 현대제철 주식회사
发明人： 이승하 , 한성경 , 도형협
IPC分类号： C21D8/02 , C22C38/12 , C22C38/14 , C22C38/18
摘要： 본 발명은 C: 0.12~0.25wt%, Si: 0.10~0.65wt%, Mn: 0.8~3.0wt%, Al: 0.01~1.00wt%, P: 0 초과 0.02wt% 이하, S: 0 초과 0.001wt% 이하, Cu: 0.2~0.6wt%를 포함하고, 잔부 Fe 및 기타 불가피한 불순물의 합금조성을 갖는 강에, Ti: 0.01~0.10wt%, Nb: 0.01~0.10wt%, V: 0.01~0.10wt%, Mo: 0.1~0.5wt%, Cr: 0.1~0.5wt% 중 적어도 하나를 더 포함하는 강슬라브를 재가열하고, 오스테나이트 재결정 온도 이하~오스테나이트/페라이트 변태온도(Ar3)이상의 온도에서 열간압연하여 열연강판을 제조하는 단계, 상기 열연강판을 소정의 권취온도까지 소정의 냉각속도로 냉각하는 단계 및 상기 냉각된 열연강판을 상기 소정의 권취온도에서 권취하여 열연코일을 제조하는 단계를 포함한다.
이에 따르면, 본 발명은 강판 중의 S의 함유량을 최소화하여 소재의 취성을 감소시킴으로써 인장강도 1300 Mpa 이상의 인장강도 및 8% 이상의 연신율을 갖고, 수소지연파괴 저항성이 향상된 초고강도 강판을 제조할 수 있는 이점이 있다.
AOD, 열간압연

38. 发明公开

KR1020110000398A 수소지연파괴 저항성이 우수한 강판 및 그 제조방법 有权
标题翻译：具有优异氢延迟耐断裂性的钢板及其制造方法
公开(公告)号：KR1020110000398A
公开(公告)日：2011-01-03
申请号：KR1020090057865
申请日：2009-06-26
申请人： 현대제철 주식회사
发明人： 이승하 , 한성경 , 도형협
IPC分类号： C21D8/02 , C22C38/16 , C22C38/08 , C22C38/12
CPC分类号： C21D8/02 , C21D8/0226 , C21D8/0236 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16
摘要： PURPOSE: A steel sheet having superior hydrogen delayed fracture resistance and a manufacturing method thereof are provided to secure stability in quenching property and strength of a steel sheet by controlling the contents of Cu and S. CONSTITUTION: A steel sheet having superior hydrogen delayed fracture resistance comprises C 015~040 weight%, Mn 05~25 weight%, B 00015~00040 weight%, Si 0~05 weight% or less, P 0~005 weight% or less, Al 0~003 weight% or less, N 0004~0012 weight%, Ti 002~005 weight%, Cu 02~10 weight%, S 0~0001 weight% or less, and Fe and inevitable impurities of the rest amount. The steel sheet also includes Ni 0~2 weight% or less and/or Nb 0~010 weight%.
摘要翻译：目的：提供具有优异的氢延迟断裂性的钢板及其制造方法，以通过控制Cu和S的含量来确保钢板的淬火性能和强度的稳定性。构成：具有优异的氢延迟断裂电阻的钢板包括C 015〜040重量％，Mn 05〜25重量％，B00015〜00040重量％，Si 0〜05重量％以下，P 0〜005重量％以下，Al 0〜003重量％以下，N 0004〜0012重量％，Ti 002〜005重量％，Cu 02〜10重量％，S 0〜0001重量％以下，余量为Fe和不可避免的杂质。钢板还包括Ni 0〜2重量％以下和/或Nb 0〜010重量％。

39. 发明公开

KR1020100047015A 초고강도 열연강판 및 그 제조방법 无效
标题翻译：具有超高强度的热轧钢板及其制造方法
公开(公告)号：KR1020100047015A
公开(公告)日：2010-05-07
申请号：KR1020080106087
申请日：2008-10-28
申请人： 현대제철 주식회사
发明人： 도형협 , 한성경 , 이승하
IPC分类号： C22C38/04 , C21D8/02
CPC分类号： C22C38/04 , C21D8/0205 , C21D8/0226 , C21D8/0247 , C22C38/001 , C22C38/02 , C22C38/06 , C22C38/12 , C22C38/58 , C22C2202/00
摘要： PURPOSE: A hot rolled steel sheet and a manufacturing method thereof are provided to improve the solderability and elongation ratio by reducing the alloy atom addition amount. CONSTITUTION: A hot rolled steel sheet is made of carbon 0.10~0.20 weight%, silicon 0.01~0.30 weight%, manganese 1.5~3.0 weight%, aluminum 0.005~0.060 weight%, vanadium 0.02~0.10 weight%, boron 0.001~0.002 weight%, phosphorus 0.02 weight%, sulfur 0.006 weight%, nitrogen 0.020 weight% and iron. Micro-structure has the martensite, bainite, and three phase organization of ferrite.
摘要翻译：目的：提供一种热轧钢板及其制造方法，其通过降低合金原子添加量来提高可焊性和伸长率。构成：热轧钢板由碳0.10〜0.20重量％，硅0.01〜0.30重量％，锰1.5〜3.0重量％，铝0.005〜0.060重量％，钒0.02〜0.10重量％，硼0.001〜0.002重量％，磷0.02重量％，硫0.006重量％，氮0.020重量％和铁。微结构具有马氏体，贝氏体和铁素体的三相组织。

40. 发明公开

KR1020100047010A 열처리 경화형 열간 프레스 강판 및 그 제조방법 有权
标题翻译：淬火热轧钢板及其制造方法
公开(公告)号：KR1020100047010A
公开(公告)日：2010-05-07
申请号：KR1020080106082
申请日：2008-10-28
申请人： 현대제철 주식회사
发明人： 김택준 , 이승하
IPC分类号： C21D8/02 , C22C38/04
CPC分类号： C21D8/0205 , C21D6/005 , C21D9/46 , C22C38/04
摘要： PURPOSE: A thermal process cure type hot press steel sheet and a manufacturing method thereof are provided to manufacture steel sheet with a superior fatigue property by adding the hardenability secure element boron. CONSTITUTION: A manufacturing method of a thermal process cure type hot press steel sheet comprises: a step of supplying steel sheet material to a press mold(S1); a step of press-molding steel sheet material(S2); a step of maintaining the uniform temperature of a mold at 100~500°C in order to make the phase transformation micro-structure of the pressure-molded steel sheet(S3); a step of extracting steel sheet in which the phase transformation is completed from a press mold(S4); and a step of removing surface scale of the steel sheet from the mold(S5).
摘要翻译：目的：提供热加工固化型热压钢板及其制造方法，通过添加淬透性固定元素硼来制造具有优异的疲劳特性的钢板。构成：热处理固化型热压钢板的制造方法包括：向压模（S1）供给钢板材的工序。对钢板材（S2）进行压制成形的工序。为了使压模钢板的相变微结构（S3），保持模具的均匀温度在100〜500℃的步骤; 从压模中提取完成相变的钢板的工序（S4）; 以及从模具中除去钢板的表面刻度的步骤（S5）。

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