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1. 发明授权

KR100928819B1 미니밀 공정의 스케일제거장치 失效
标题翻译： 미니밀공정의스케일제거장치
公开(公告)号：KR100928819B1
公开(公告)日：2009-11-27
申请号：KR1020020084845
申请日：2002-12-27
申请人： 주식회사 포스코
发明人： 최진원 , 노계호
IPC分类号： B21B45/08
摘要： PURPOSE: An apparatus for removing scale on slab in mini-mill process is provided to obtain collision pressure required for removing scale by adjusting injection distance of high pressure water according to pump pressure, prevent surface defects by preventing inflow of scale into rolling mill and reduce surface temperature deviation of the slab. CONSTITUTION: In an apparatus(1) for removing scale formed on slab manufactured in the mini-mill process, the apparatus comprises upper and lower transfer means(10) comprising a lower cylinder(12) fixed to both sides of a lower part of the slab, a pinion(14) driven by motor at the side surface of the lower cylinder, and an upper cylinder(18) onto the outer circumference of which rack(16) engaged with the pinion is fixed, and which is vertically guided by the lower cylinder; a body(30) comprising a high pressure water header(32) fixed onto an upper part of the upper cylinder so that high pressure water is supplied to the high pressure water header, high pressure water injection nozzles fixed to the high pressure water header, a high pressure water discharge pipe which is positioned in front of an upper part of the high pressure water header, and a part of the outer circumferential surface of which is opened, and a guiding plate(36) slantly formed at a lower part of the high pressure water discharge pipe to guide injected high pressure water into the high pressure water discharge pipe, wherein the high pressure water header, the high pressure water injection nozzles, the high pressure water discharge pipe and the guiding plate are integrally formed in the body; and pinch rolls(50) elastically installed so that the pinch rolls are closely adhered to the slab with the pinch rolls being arranged in front and rear of the body.
摘要翻译：目的：提供一种微型轧机过程中去除铸坯上结垢的装置，通过根据泵压力调节高压水的喷射距离来获得去除结垢所需的碰撞压力，通过防止水垢流入轧机以防止表面缺陷并减少板坯的表面温度偏差。本发明的装置（1）包括上下传送装置（10），该装置包括一个下圆筒（12），该下圆筒固定在在下圆筒的侧面上由马达驱动的小齿轮14和固定在与小齿轮啮合的齿条16的外圆周上的上圆柱18，下缸; （30），其包括固定在所述上缸体的上部上的高压水集管（32），从而向所述高压水集管供应高压水，固定到所述高压水集管的高压水喷射喷嘴，高压水排出管，其位于所述高压水联管箱的上部的前方，并且其外周面的一部分开口;以及导向板（36），其倾斜地形成在所述高压水集管的下部高压排水管，用于将注入的高压水导入高压排水管，高压排水管，高压注水喷嘴，高压排水管和导流板一体成型于机体内; 以及弹性地安装的夹送辊（50），使得夹送辊紧紧地粘附在板坯上，夹送辊布置在主体的前部和后部。

2. 发明公开

KR1020040058556A 미니밀 공정의 스케일제거장치 失效
标题翻译：用于在微型铣床中移除尺寸的装置
公开(公告)号：KR1020040058556A
公开(公告)日：2004-07-05
申请号：KR1020020084845
申请日：2002-12-27
申请人： 주식회사 포스코
发明人： 최진원 , 노계호
IPC分类号： B21B45/08
CPC分类号： B21B45/08 , B21B39/006
摘要： PURPOSE: An apparatus for removing scale on slab in mini-mill process is provided to obtain collision pressure required for removing scale by adjusting injection distance of high pressure water according to pump pressure, prevent surface defects by preventing inflow of scale into rolling mill and reduce surface temperature deviation of the slab. CONSTITUTION: In an apparatus(1) for removing scale formed on slab manufactured in the mini-mill process, the apparatus comprises upper and lower transfer means(10) comprising a lower cylinder(12) fixed to both sides of a lower part of the slab, a pinion(14) driven by motor at the side surface of the lower cylinder, and an upper cylinder(18) onto the outer circumference of which rack(16) engaged with the pinion is fixed, and which is vertically guided by the lower cylinder; a body(30) comprising a high pressure water header(32) fixed onto an upper part of the upper cylinder so that high pressure water is supplied to the high pressure water header, high pressure water injection nozzles fixed to the high pressure water header, a high pressure water discharge pipe which is positioned in front of an upper part of the high pressure water header, and a part of the outer circumferential surface of which is opened, and a guiding plate(36) slantly formed at a lower part of the high pressure water discharge pipe to guide injected high pressure water into the high pressure water discharge pipe, wherein the high pressure water header, the high pressure water injection nozzles, the high pressure water discharge pipe and the guiding plate are integrally formed in the body; and pinch rolls(50) elastically installed so that the pinch rolls are closely adhered to the slab with the pinch rolls being arranged in front and rear of the body.
摘要翻译：目的：提供一种在微型轧机工艺中去除板坯规模的装置，通过根据泵压调整高压水的喷射距离，通过调节水垢去除规模所需的碰撞压力，防止水垢流入轧机，减少表面缺陷板坯表面温度偏差。构造：在用于去除在微型制造工艺中制造的板上形成的垢的装置（1）中，该装置包括上部和下部传送装置（10），该传送装置包括下部气缸（12），该下部气缸固定到下部在下缸体的侧面由马达驱动的小齿轮（14）和与小齿轮啮合的齿条（16）的外圆周上的上筒（18），并且被垂直地引导下缸主体（30），其包括固定在所述上部气缸的上部的高压水集管（32），使得向所述高压水集管供给高压水，固定在所述高压水集管上的高压水喷射喷嘴，高压排水管，其位于高压水集管的上部的前方，其外周面的一部分被打开;以及引导板（36），其倾斜地形成在所述高压水集管的下部高压排水管将高压水引入高压排水管，其中高压水头，高压水喷嘴，高压排水管和引导板一体形成在主体内; 和夹送辊（50）被弹性地安装，使得夹送辊紧密地粘附到板坯上，夹送辊布置在主体的前部和后部。

3. 发明公开

KR1020020041598A 조관후 항복강도 상승량이 적은 미니밀 열연강판과 그제조방법 有权
标题翻译： MINI-MILL热轧钢板在管材成型和制造方法之前和之后具有较低的强度
公开(公告)号：KR1020020041598A
公开(公告)日：2002-06-03
申请号：KR1020000071262
申请日：2000-11-28
申请人： 주식회사 포스코
发明人： 박기종 , 노계호
IPC分类号： B21B3/00
摘要： PURPOSE: A method for manufacturing a mini-mill hot-rolled steel sheet(JS-SPHT1) for pipeline and electric wire pipe with low yield strength before and after pipe forming is provided, in which N affecting to process hardening is precipitated in the form of AlN, thus increase rate of yield strength after piper forming is controlled within 7kg/mm¬2. CONSTITUTION: The method includes the steps of melting scrap comprising C 0.05 wt.% or less, Mn 0.20-0.50 wt.%, Si 0.05 wt.% or less, P 0.03 wt.% or less, S 0.015 wt.% or less, sol-Al 0.10-0.15 wt.%, N 0.008-0.015 wt.%, total tramp elements 0.25 wt.% or less, a balance of Fe in an electric furnace; continuous casting the molten steel into thin slab; finish hot rolling the thin slab in the temperature range of 860 to 890°C; and coiling the hot rolled steel sheet in the temperature range of 600 to 700°C. In this method, Al/N is controlled to be higher than 10, and the tramp elements comprises Cu 0.20 wt.% or less, Sn 0.05 wt.% or less, and Sb 0.05 wt.% or less.
摘要翻译：目的：提供一种用于管道成形前后的屈服强度低的管道和电线管的微型轧制热轧钢板（JS-SPHT1）的制造方法，其中以加工硬化的方式影响加工硬化的N 的AlN，因此成型后的屈服强度增加率控制在7kg / mm2以内。构成：该方法包括熔融废料的步骤，其包含C 0.05重量％以下，Mn 0.20-0.50重量％，Si 0.05重量％以下，P 0.03重量％以下，S 0.015重量％以下，sol-Al 0.10-0.15重量％，N 0.008-0.015重量％，总挥发性元素0.25重量％以下，电炉中余量的Fe; 将钢水连续铸造成薄板坯; 在860〜890℃的温度范围内对薄板进行热轧，并在600〜700℃的温度范围内卷取热轧钢板。在该方法中，Al / N被控制为高于10，并且流动元件包括Cu 0.20重量％以下，Sn 0.05重量％以下，Sb 0.05重量％以下。

4. 发明公开

KR1019990053144A 가공용박물열간압연연강판의제조방법 失效
公开(公告)号：KR1019990053144A
公开(公告)日：1999-07-15
申请号：KR1019970072735
申请日：1997-12-23
申请人： 주식회사 포스코
发明人： 조열래 , 노계호 , 이상로
IPC分类号： B21B3/00
摘要： 가공용 박물 열연강판의 제조방법에서, 중량 %로 탄소:0.02 ∼ 0.05%, 규소: trace, 망간: 0.10 ∼ 0.30%, 보론:10∼ 30ppm, 인 3 변태점 이상으로 하고 열간압연후 권취온도를 600 ℃이상이 되도록 제어함은 물론, 상기 성분계 및 열간압연조건을 만족하는 방법으로 제조된 두께 1.3∼2.3mm의 심가공용 박물 열간압연강판의 표면 스케일을 산세 처리한 후 도유를 행하는 것을 특징으로 하는 조직 균일성이 우수한 가공용 박물 열간압연 연강판의 제조방법을 요지로 한다.

5. 发明授权

KR100370579B1 표면성상 및 가공성이 우수한 열연강판 및 미니밀 공정에 의한그 제조방법 失效
标题翻译： 표면성상및가공성이우수한열연강판및미니밀공정에의한그제조방법
公开(公告)号：KR100370579B1
公开(公告)日：2003-03-17
申请号：KR1019980062079
申请日：1998-12-30
申请人： 주식회사 포스코
发明人： 이상로 , 노계호
IPC分类号： B21B3/00
摘要： PURPOSE: A method is provided to produce a soft hot rolled steel strip having excellent processing performance and surface formation even under high nitrogen atmosphere by using iron containing much Cu, Sn, Pb, Ni and so on as an iron source. CONSTITUTION: A hot-rolled steel strip is composed of 0.03 to 0.06wt% of C, 0.25 to 0.40wt% of Mn, less than 0.025wt% of Si, less than 0.01wt% of P, less than 0.008wt% of S, less than 0.1wt% of Cr, less than 0.3wt% of Ni, less than 0.4wt% of Cu, 0.01 to 0.04wt% of Sn, 0.001 to 0.012wt% of Pb, 0.03 to 0.10wt% of soluble Al, less than 150ppm of N, 0.0002 to 0.008wt% of Ca and the remain of Fe and incidental impurities. Mn/S is more than or the same as 30. In order to produce the steel strip, a continuously cast slab is warm-rolled under a temperature of 950°C and heated under a temperature of 1050°C in an induced heating furnace. Then, the steel strip passes through a coil box to be finally rolled and wound in a temperature of more than 640°C.
摘要翻译：目的：提供一种通过使用含有大量Cu，Sn，Pb，Ni等作为铁源的铁，即使在高氮气氛下也具有优异加工性能和表面形成的软质热轧钢带的方法。组成：热轧钢带由C：0.03〜0.06wt％，Mn：0.25〜0.40wt％，Si：不足0.025wt％，P：不足0.01wt％，S：不足0.008wt％，少于0.1重量％的Cr，少于0.3重量％的Ni，少于0.4重量％的Cu，0.01至0.04重量％的Sn，0.001至0.012重量％的Pb，0.03至0.10重量％的可溶性Al， N：小于150ppm，Ca：0.0002〜0.008wt％，残留Fe和不可避免的杂质。 Mn / S大于或等于30.为了生产钢带，将连续铸造的钢坯在950℃的温度下进行热轧并在1050℃的温度下在感应加热炉。然后，钢带通过线圈盒，最后在大于640℃的温度下卷绕和卷绕。

6. 发明公开

KR1020000045520A 표면성상 및 가공성이 우수한 열연강판 및 미니밀 공정에 의한그 제조방법 失效
标题翻译：用于生产具有优良表面形成和热处理性能的热轧钢带的方法
公开(公告)号：KR1020000045520A
公开(公告)日：2000-07-15
申请号：KR1019980062079
申请日：1998-12-30
申请人： 주식회사 포스코
发明人： 이상로 , 노계호
IPC分类号： B21B3/00
摘要： PURPOSE: A method is provided to produce a soft hot rolled steel strip having excellent processing performance and surface formation even under high nitrogen atmosphere by using iron containing much Cu, Sn, Pb, Ni and so on as an iron source. CONSTITUTION: A hot-rolled steel strip is composed of 0.03 to 0.06wt% of C, 0.25 to 0.40wt% of Mn, less than 0.025wt% of Si, less than 0.01wt% of P, less than 0.008wt% of S, less than 0.1wt% of Cr, less than 0.3wt% of Ni, less than 0.4wt% of Cu, 0.01 to 0.04wt% of Sn, 0.001 to 0.012wt% of Pb, 0.03 to 0.10wt% of soluble Al, less than 150ppm of N, 0.0002 to 0.008wt% of Ca and the remain of Fe and incidental impurities. Mn/S is more than or the same as 30. In order to produce the steel strip, a continuously cast slab is warm-rolled under a temperature of 950°C and heated under a temperature of 1050°C in an induced heating furnace. Then, the steel strip passes through a coil box to be finally rolled and wound in a temperature of more than 640°C.
摘要翻译：目的：通过使用含有大量Cu，Sn，Pb，Ni等作为铁源的铁，提供即使在高氮气氛下也具有优异的加工性能和表面形成的软质热轧钢带的方法。构成：热轧钢带由C：0.03〜0.06重量％，Mn：0.25〜0.40重量％，Si：0.025重量％以下，P：0.01重量％以下，S：0.008重量％以下，小于0.1重量％的Cr，小于0.3重量％的Ni，小于0.4重量％的Cu，0.01〜0.04重量％的Sn，0.001〜0.012重量％的Pb，0.03〜0.10重量％的可溶性Al，小于150ppm的N，0.0002至0.008wt％的Ca和剩余的Fe和杂质。 Mn / S与30以上或相同。为了制造钢带，将连续铸造的板坯在950℃的温度下进行热轧，并在感应加热炉中在1050℃的温度下加热。然后，钢带通过线圈箱，最终在超过640℃的温度下卷起并缠绕。

7. 发明公开

KR1019970043254A 무산세에 의한 용융도금 열연강판의 제조방법 失效
标题翻译：通过热浸镀锌的热轧钢板的制造方法
公开(公告)号：KR1019970043254A
公开(公告)日：1997-07-26
申请号：KR1019950066260
申请日：1995-12-29
申请人： 주식회사 포스코
发明人： 최진원 , 노계호
IPC分类号： C23C2/28
摘要： 본 발명은 자동차 내외판 또는 가전제품 등의 소재로 사용되는 용융도금 열연강판의 제조방법에 관한 것이며, 그 목적은 산세 공정을 생략하면서도 도금밀착성이 우수한 용융 도금 열연강판을 제공함에 있다. 본 발명은 용융 도금 열연강판의 제조방법에 있어서, 통상의 열간압연 강판을 산세 공정을 거치지 않고 바로 환원가열장치로 이송하는 단계; 상기 환원가열장치의 분위기를 20-30%농도의 수소 분위기로 조절하는 단계; 및 상기 강판을 Al 변태점이하로부터 650℃의온도범위에서 30-400초 동안 유지하여 환원열처리하는 단계를 포함하여 구성되는 무산세에 의한 용융 도금 열연강판의 제조방법에 관한 것을 그 기술적 요지로 한다.

8. 发明授权

KR100244643B1 무산세에 의한 용융도금 열연강판의 제조방법 失效
标题翻译：具有非酸蚀刻的热镀锌钢的方法
公开(公告)号：KR100244643B1
公开(公告)日：2000-03-02
申请号：KR1019950066260
申请日：1995-12-29
申请人： 주식회사 포스코
发明人： 최진원 , 노계호
IPC分类号： C23C2/28
摘要： 본 발명은 자동차 내외판 또는 가전제품 등의 소재로 사용되는 용융도금 열연강판의 제조방법에 관한 것이며, 그 목적은 산세공정을 생략하면서도 도금밀착성이 우수한 용융도금열연강판을 제공함에 있다.
본 발명은 용융 도금 열간압연강판의 제조방법에 있어서, 통상의 열간압연 강판을 산세 공정을 거치지 않고 바로 환원가열장치로 이송하는 단계; 상기 환원가열장치의 분위기를 20-30%농도의 수소 분위기로 조절하는 단계; 및 상기 강판을 A
1 변태점이하로 부터 650℃의 온도범위에서 30-400초 동안 유지하여 환원열처리하는 단계를 포함하여 구성되는 무산세에 의한 용융도금 열연강판의 제조방법에 관한 것을 그 기술적 요지로 한다.

9. 发明公开

KR1019990032697A 유도예열에 의한 산세촉진방법 无效
标题翻译：预热诱导酸洗的方法
公开(公告)号：KR1019990032697A
公开(公告)日：1999-05-15
申请号：KR1019970053796
申请日：1997-10-20
申请人： 주식회사 포스코
发明人： 노계호 , 이승복 , 강희재
IPC分类号： C23G1/08
摘要： 본 발명은 열연강판의 산세방법에 관한 것이며;
그 목적은 입열량제어 및 공정적용이 유리한 유도가열방법으로 열연강판을 미리 예열하여 산세함으로써 산세촉진방법을 제공함에 있다.
상기 목적을 달성하기 위한 본 발명은, 열연강판을 일정온도의 산세액이 내장된 산세조에 인입하여 산세하는 방법에 있어서, 상기 열연강판을 유도가열한 다음, 가열된 열연강판을 산세조에 인입하고 산세하여 이루어지는 유도예열에 의한 산세촉진방법에 관한 것을 그 요지로 한다.

10. 发明授权

KR100325537B1 가공용박물열간압연연강판의제조방법 失效
标题翻译：制造钢板的方法
公开(公告)号：KR100325537B1
公开(公告)日：2002-08-09
申请号：KR1019970072735
申请日：1997-12-23
申请人： 주식회사 포스코
发明人： 조열래 , 노계호 , 이상로
IPC分类号： B21B3/00
摘要： PURPOSE: A method for manufacturing a hot rolled mild steel sheet that exhibits superior grain structure homogeneity in width profile by addition of a trace amount of boron and then properly controlling coiling temperature after hot rolling is provided. CONSTITUTION: The method includes the steps of hot rolling a slab comprising C 0.02 to 0.05 wt.%, trace Si, Mn 0.10 to 0.30 wt.%, B 10 to 30 ppm, 0.015 wt.% or less of P, 0.010 wt.% or less S, Al 0.01 to 0.04 wt.% and 40 ppm or less of N to the thickness of 1.3 to 2.3 mm, wherein finish hot rolling temperature is higher than Ar3 transformation temperature; coiling the hot rolled steel sheet at higher than 620 deg.C; pickling the hot coil to remove surface scale; and applying oil on the surface of the pickled steel sheet.

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