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1. 发明授权

KR101586920B1 강재 및 그 제조 방법 有权
标题翻译：钢及其制造方法
公开(公告)号：KR101586920B1
公开(公告)日：2016-01-19
申请号：KR1020140080096
申请日：2014-06-27
申请人： 현대제철 주식회사
发明人： 김태응 , 이강노 , 이승하
IPC分类号： C21D8/02 , C22C38/58
摘要： 합금성분조절및 공정조건제어를통해높은성형성과대기부식성이우수한고강도내후성강재및 그제조방법에대하여개시한다. 본발명에따른강재는중량%로, C : 0.05 ~ 0.09%, Si : 0.12 ~ 0.18%, Mn : 1.2 ~ 1.8%, Cu : 0.2 ~ 0.4%, Cr : 0.4 ~ 0.6%, Ni : 0.12 ~ 0.18%, Nb : 0.03 ~ 0.10%, Ti : 0.06 ~ 0.10% 및나머지철(Fe)과기타불가피한불순물로조성되며, 최종미세조직이페라이트(ferrite) 및베이나이트(bainite)를포함하는복합조직을갖되, 상기베이나이트조직이단면면적률로 60 ~ 70%를갖는것을특징으로한다.

2. 发明公开

KR1020140041282A 강판 및 그 제조 방법 有权
标题翻译：钢板及其制造方法
公开(公告)号：KR1020140041282A
公开(公告)日：2014-04-04
申请号：KR1020120108415
申请日：2012-09-27
申请人： 현대제철 주식회사
发明人： 박세호 , 이승하
IPC分类号： C21D8/02 , C22C38/00 , B21B3/00 , C21D9/46
CPC分类号： C21D8/0226 , C21D1/28 , C21D8/0263 , C21D8/0273 , C21D2211/005 , C21D2211/009 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12
摘要： Disclosed are a steel sheet and a manufacturing method thereof, wherein the steel sheet can have a proper strength and secure a high formability by controlling alloy elements and process conditions without adding expensive alloy elements. The steel sheet according to the present invention comprises 0.16 to 0.20 wt% of C, 0.05 to 0.20 wt% of Si, 1.3 to 1.6 wt% of Mn, at most 0.03 wt% of P, at most 0.006 wt% of S, 0.01 to 0.03 wt% of S_Al, 0.04 to 0.06 wt% of Nb, and remnants Fe and inevitable impurities; has a fine structure with a composite structure containing ferrite and pearlite; and has a tensile strength (TS) of 550 to 700 MPa, a yield strength (YS) of at least 460 MPa, an elongation (EL) of at least 21%, and an impact absorbing energy of at least 68 J at a temperature of -5°C.
摘要翻译：公开了一种钢板及其制造方法，其中，通过控制合金元素和工艺条件，钢板可以具有适当的强度并确保高成形性，而不添加昂贵的合金元素。根据本发明的钢板包含C：0.16〜0.20重量％，Si：0.05〜0.20重量％，Mn：1.3〜1.6重量％，P：0.03重量％以下，S：0.006重量％以下，0.01 至0.03重量％的S_Al，0.04〜0.06重量％的Nb，残留Fe和不可避免的杂质; 具有包含铁素体和珠光体的复合结构的精细结构; 拉伸强度（TS）为550〜700MPa，屈服强度（YS）为460MPa以上，伸长率（EL）为21％以上，冲击吸收能量为68J以上的温度 -5℃。

3. 发明公开

KR1020130088328A 열연강판 제조 방법 有权
标题翻译：热轧钢和制造热轧钢的方法
公开(公告)号：KR1020130088328A
公开(公告)日：2013-08-08
申请号：KR1020120009495
申请日：2012-01-31
申请人： 현대제철 주식회사
发明人： 이승하 , 전진화 , 고강희 , 도형협
IPC分类号： C21D8/02 , C22C38/00 , C21D9/46
CPC分类号： C21D8/0226 , C21D8/0263 , C22C38/02 , C22C38/04 , C22C38/06
摘要： PURPOSE: Hot-rolled steel sheet and a manufacturing method of the same are provided to control substances and a controlling process, have a 440MPa of strength and allow elongation to be even. CONSTITUTION: A manufacturing method of hot-rolled steel sheet comprises the following steps. A slab board made of 0.14-0.18% of C, less than 0.1% Si, 0.5-1.0% of Mn, less than 0.02% of P, less than 0.005% of S, 0.01-0.06% of Al, less than 0.0035% of N, Fe and other substances is re-heated (S110). The re-heated board is hot-rolled (S120). The hot-rolled board is reeled (S130). The cooling process is carried out at a temperature of 650°C as the first cooling speed. Below 650°C, the second speed is carried out and the second cooling speed is faster than the first cooling speed. [Reference numerals] (AA) Start; (BB) End; (S110) Reheating slab; (S120) Hot rolling; (S130) Cooling / Winding
摘要翻译：目的：提供热轧钢板及其制造方法以控制物质和控制过程，具有440MPa的强度并允许伸长率均匀。构成：热轧钢板的制造方法包括以下步骤。由0.14-0.18％C，小于0.1％Si，0.5-1.0％Mn，小于0.02％P，小于0.005％的S，0.01-0.06％的Al，小于0.0035％的N，Fe等物质被再加热（S110）。再热板被热轧（S120）。热轧板被卷起（S130）。冷却过程在650℃的温度下作为第一冷却速度进行。在650℃以下，进行第二速度，第二冷却速度比第一冷却速度快。（附图标记）（AA）开始; （BB）结束; （S110）再热板; （S120）热轧; （S130）冷却/绕组

4. 发明公开

KR1020130002438A 코일 교정장치 失效
标题翻译：矫正线圈的装置
公开(公告)号：KR1020130002438A
公开(公告)日：2013-01-08
申请号：KR1020110063394
申请日：2011-06-29
申请人： 현대제철 주식회사
发明人： 박영국 , 김양곤 , 이승하 , 임갑수
IPC分类号： B21C47/28 , B65G57/00 , B65D19/44
摘要： PURPOSE: A strip coil correcting apparatus is provided to prevent a strip coil from bulging by controlling the interval of support boards according to the outer diameter of the strip coil before the strip coil is seated. CONSTITUTION: A strip coil correcting apparatus(1) comprises a support(10), a first support board(100), and a second support board(200). The first support board is arranged on one side of the support, and one surface of a coil is placed thereon. The first support board controls the interval with the support. The second support board is arranged on the other side of the support, and the other surface of the coil is placed thereon. The second support board controls the interval with the support.
摘要翻译：目的：提供一种带状线圈校正装置，用于通过在带状线圈就座之前根据带状线圈的外径控制支撑板的间隔来防止带状线圈膨胀。构成：带状线圈校正装置（1）包括支撑件（10），第一支撑板（100）和第二支撑板（200）。第一支撑板布置在支撑件的一侧上，线圈的一个表面放置在其上。第一个支持板控制支持的间隔。第二支撑板布置在支撑件的另一侧上，线圈的另一个表面放置在其上。第二个支持板控制支持的间隔。

5. 发明公开

KR1020110022299A 고강도 열연강판 및 그 제조방법 无效
标题翻译：高强度热轧钢板及其制造方法
公开(公告)号：KR1020110022299A
公开(公告)日：2011-03-07
申请号：KR1020090079836
申请日：2009-08-27
申请人： 현대제철 주식회사
发明人： 문준오 , 이승하
IPC分类号： C21D8/02 , C22C38/12 , C22C38/04
CPC分类号： C21D8/02 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/12
摘要： PURPOSE: A high strength hot rolled steel sheet and a manufacturing method thereof are provided to facilitate the formation of complex component shape by excellent moldability. CONSTITUTION: A high strength hot rolled steel sheet comprises C, Si, Mn, P, S, Nb, remnant Fe, impurities, and micro-structure. The content of C is 0.1~0.2wt%. The content of Si is 0.05~0.25wt%. The content of Mn is 1.0~2.0wt%. The content of P is more than 0 and less than 0.03wt%. The content of S is more than 0 and less than 0.02wt%. The content of Nb is more than 0 and less than 0.05wt%. The content of V is more than 0 and less than 0.01wt%. The content of N is more than 0 and less than 0.01wt%. The micro-structure is comprised of ferrite and pearlite.
摘要翻译：目的：提供高强度热轧钢板及其制造方法，以便通过优异的成形性来形成复杂的部件形状。构成：高强度热轧钢板包括C，Si，Mn，P，S，Nb，残余Fe，杂质和微结构。 C含量为0.1〜0.2wt％。 Si含量为0.05〜0.25wt％。 Mn含量为1.0〜2.0wt％。 P含量大于0且小于0.03wt％。 S的含量大于0且小于0.02wt％。 Nb的含量大于0且小于0.05wt％。 V的含量大于0且小于0.01wt％。 N含量大于0且小于0.01wt％。微结构由铁素体和珠光体组成。

6. 发明授权

KR101003254B1 열간 프레스 가공성이 우수한 열처리 강화형 강판 및 그제조방법 有权
标题翻译：具有优异成形性热压的淬火钢板及其制造方法
公开(公告)号：KR101003254B1
公开(公告)日：2010-12-21
申请号：KR1020080073004
申请日：2008-07-25
申请人： 현대제철 주식회사
发明人： 김택준 , 이승하 , 김성주
IPC分类号： C22C38/00 , C21D8/02
摘要： 본 발명은 열간 프레스 가공성이 우수한 열처리 강화형 강판 및 그 제조방법에 관한 것이다. 본 발명은 중량 %로, 탄소(C) 0.15~0.30%, 실리콘(Si) 0.05~0.5%, 망간(Mn) 1.0~2.0%, 보론(B) 0.0005~0.0040%, 나머지 철(Fe) 및 기타 불가피한 불순물의 합금조성을 가지는 강에 코발트(Co), 지르코늄(Zr), 안티몬(Sb) 중 적어도 2종 이상이 추가로 함유한다. 본 발명은 합금원소제어로 고온연성이 향상되어 600~800℃범위에서 프레스 가공이 가능하므로 도금층이 보호되는 것은 물론, 가공후에도 1400MPa이상의 인장강도와 8%이상의 연신율을 확보할 수 있는 이점이 있다.
열처리 강화형 강판, 열간 프레스, 연신율

7. 发明公开

KR1020100047018A 도금 부착성이 우수한 열처리 경화형 강판 및 그 제조방법 无效
标题翻译：具有优异涂层粘合剂的淬火热轧钢板及其制造方法
公开(公告)号：KR1020100047018A
公开(公告)日：2010-05-07
申请号：KR1020080106090
申请日：2008-10-28
申请人： 현대제철 주식회사
发明人： 이승하 , 김택준 , 도형협
IPC分类号： C22C38/04 , C21D8/02
CPC分类号： C22C38/42 , C21D8/0205 , C21D8/0247 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/32 , C22C38/44 , C22C38/48 , C22C38/58
摘要： PURPOSE: A thermal process cure type steel sheet with a superior plating adherence and a manufacturing method thereof are provided to secure platability and to make excellent martensite structure by cooling a cooling speed of 50~150°C. CONSTITUTION: A thermal process cure type steel sheet comprises nickel 0.01~2 weight%, aluminum 0.03 weight%, sulfur 0.05 weight%, carbon 0.19~0.40 weight%, manganese 0.5~2.5 weight%, chrome 0.1~0.5 weight%, boron 0.0015~0.0040 weight%, silicon 0.01~0.5 weight%, phosphorus 0.05 weight%, niobium 0.01~0.10 weight%, copper 0.01~1 weight%, and the two kind of iron for the rest. Molybdenum is added to 0.05~0.20 weight% according to the content of silicon.
摘要翻译：目的：提供一种具有优异的电镀附着力的热处理固化型钢板及其制造方法，以确保电镀性，并通过冷却50〜150℃的冷却速度来制造优异的马氏体组织。构成：热处理固化型钢板含镍0.01〜2重量％，铝0.03重量％，硫0.05重量％，碳0.19〜0.40重量％，锰0.5〜2.5重量％，铬0.1〜0.5重量％，硼0.0015 〜0.0040重量％，硅0.01〜0.5重量％，磷0.05重量％，铌0.01〜0.10重量％，铜0.01〜1重量％，其余为两种铁。根据硅含量将钼添加至0.05〜0.20重量％。

8. 发明公开

KR1020100047011A 용접 및 충격특성이 우수한 열처리 경화형 강판 및 그 제조방법 有权
标题翻译：具有优质镀层和冲击性能的热轧压制钢板及其制造方法
公开(公告)号：KR1020100047011A
公开(公告)日：2010-05-07
申请号：KR1020080106083
申请日：2008-10-28
申请人： 현대제철 주식회사
发明人： 김택준 , 이승하
IPC分类号： C22C38/04 , C21D8/02
CPC分类号： C22C38/04 , C21D8/0205 , C22C38/002 , C22C38/02 , C22C38/10 , C22C38/12 , C22C38/14 , C22C2202/00
摘要： PURPOSE: A thermal process cure type steel sheet with a superior welding and impact property and a manufacturing method thereof are provided to increase the welding and impact property by controlling the amount of addition of trace alloy. CONSTITUTION: A manufacturing method of a thermal process cure type steel sheet with a superior welding and impact property comprises: a step of re-heating a steel sheet; and a step of performing a press molding of a heated steel sheet within a temperature range of 600~800°C in a press mold. A steel sheet comprises carbon 0.15~0.40 weight%, silicon 0.03~0.30 weight%, manganese 1.0~2.0 weight%, boron 0.0005~0.004 weight%, sulfur less than 0.003 weight%, phosphorus less than 0.012 weight%, calcium 0.001~0.005 weight%, niobium 0.005~0.05 weight%, zirconium 0.005~0.1 weight%, cobalt less than 0.0005~0.5 weight%.
摘要翻译：目的：提供具有优异的焊接和冲击特性的热处理固化型钢板及其制造方法，通过控制微量合金的添加量来提高焊接和冲击性能。构成：具有优异的焊接和冲击性能的热处理固化型钢板的制造方法包括：重新加热钢板的步骤; 以及在压模中在600〜800℃的温度范围内对加热钢板进行加压成型的工序。钢板含有0.15〜0.40重量％的碳，0.03〜0.30重量％的硅，1.0〜2.0重量％的锰，0.0005〜0.004重量％的硼，0.003重量％以下的硫，小于0.012重量％的磷，0.001〜0.005重量％重量％，铌0.005〜0.05重量％，锆0.005〜0.1重量％，钴小于0.0005〜0.5重量％。

9. 发明公开

KR1020140118920A 열처리 경화형 도금강판 및 이를 이용한 강 제품 제조 방법 无效
标题翻译：淬火和镀覆钢板及使用该钢板制造钢产品的方法
公开(公告)号：KR1020140118920A
公开(公告)日：2014-10-08
申请号：KR1020140036855
申请日：2014-03-28
申请人： 현대제철 주식회사
发明人： 이승하 , 남승만
IPC分类号： C21D8/02 , C21D1/18 , C22C38/00
CPC分类号： C21D8/0205 , B21D37/16 , C22C38/001 , C22C38/02 , C22C38/38 , C23C2/06 , C23C2/12
摘要： Disclosed are a quenched and plated steel sheet, capable of having tensile strength of 1400 Mpa or higher without boron (B) after a hot rolling pressing molding work, and a method of manufacturing a steel product using the same. The quenched and plated steel sheet according to the present invention includes 0.1-0.4% of C, 0.05-0.5% of Si, 0.5-2.0% of Mn, 0.05% or less of P, 0.05% or less of S, 0.01-1.0% of Cr, 0.1% or less of Al, 0.01-0.1% of Nb, and a remainder consisting of Fe and inevitable impurities, based on the unit of wt%. The quenched and plated steel sheet is provided on the surface thereof with a plating layer, and has the tensile strength of 1400 Mpa or higher through an annealing process. The steel sheet may further include at least one of 0.5% or less of Mo and 0.1% of Ti.
摘要翻译：本发明公开了一种在热轧压制成型后不具有硼（B）的拉伸强度为1400Mpa以上的淬火镀层钢板，以及使用该钢板的钢制品的制造方法。根据本发明的淬火和镀覆钢板包括C：0.1-0.4％，Si：0.05-0.5％，Mn：0.5-2.0％，P：0.05％以下，S：0.05％以下，0.01〜1.0 的Cr，0.1％以下的Al，0.01-0.1％的Nb，余量由Fe和不可避免的杂质构成，以重量％为单位。淬火和镀覆钢板在其表面上设置有镀层，并且通过退火工艺具有1400MPa或更高的拉伸强度。钢板还可以包括Mo的0.5％以下和Ti的0.1％中的至少一种。

10. 发明授权

KR101412400B1 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：KR101412400B1
公开(公告)日：2014-06-25
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
摘要： 합금 성분 조절 및 공정 조건 제어를 통하여, 저온 노말라이징이 가능한 열연강판 및 그 제조 방법과, 이를 이용한 강관 제조 방법에 대하여 개시한다.
본 발명에 따른 열연강판 제조 방법은 (a) 탄소(C) : 0.20~0.35 중량%, 실리콘(Si) : 0.15~0.30 중량%, 망간(Mn) : 1.2~2.0 중량%, 바나듐(V) : 0.2~0.3 중량%, 알루미늄(Al) : 0.02~0.05 중량%, 인(P) : 0.015 중량% 이하, 황(S) : 0.005 중량% 이하, 칼슘(Ca) : 0.002 중량% 이하, 질소(N) : 0.008 중량% 이하 및 나머지 철(Fe)과 불가피한 불순물로 이루어지는 슬라브 판재를 재가열하는 단계; (b) 상기 재가열된 판재를 열간 압연하는 단계; 및 (c) 상기 열간 압연된 판재를 냉각하여, 권취 온도(CT) 550~620℃에서 권취하는 단계;를 포함하는 것을 특징으로 한다.

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