公开(公告)号：KR100290976B1

公开(公告)日：2001-06-01

申请号：KR1019970066196

申请日：1997-12-05

Applicant: 철강융합신기술연구조합 ,  재단법인 포항산업과학연구원

Inventor： 전재호 ,  성진경 ,  정진호 ,  전중환

IPC: C25F1/00

Abstract: PURPOSE: A low contamination high speed pickling method is provided which is capable of pickling the hot rolled steel sheet with a pickling solution containing low concentrated hydrochloric acid or low concentrated sodium chloride at a low temperature for a short period of time by passing a hot rolled steel sheet through electrochemical treatment process. CONSTITUTION: In pickling a hot rolled steel sheet onto the oxide scale of which cracking is mechanically applied, the low contamination high speed pickling method comprises the processes of charging the steel sheet into an electrolytic cell which is filled up with an HCl solution having a concentration of 0.5 to 5%; and pickling the steel sheet by applying a cathode to the electrolytic cell and impressing a current density of 0.2 to 1.0 A/cm¬2 to the steel sheet at a solution temperature ranging from the room temperature to 80 deg.C for 40 seconds or less, wherein a current density of 0.6 to 1.0 A/cm¬2 is impressed at a solution temperature of 50 to 80 deg.C in case that the concentration of HCl is 0.5%, a current density of 0.2 to 1.0 A/cm¬2 is impressed at a solution temperature of 50 to 80 deg.C in case that the concentration of HCl is 1%, a current density of 0.2 to 1.0 A/cm¬2 is impressed at a solution temperature of 30 to 80 deg.C in case that the concentration of HCl is 2 to 5%, and a mixed pickling solution in which the above HCl is mixed with NaCl having a concentration of 2 to 10% is used as a pickling solution.

公开(公告)号：KR100290978B1

公开(公告)日：2001-06-01

申请号：KR1019970071712

申请日：1997-12-22

Applicant: 철강융합신기술연구조합 ,  재단법인 포항산업과학연구원

Inventor： 정진호 ,  황진화 ,  곽성준 ,  박치록

IPC: C25F7/00

Abstract: PURPOSE: An electrolytic pickling device is provided which improves efficiency of work in removing an oxide coating film by having a simple structure so that the oxide coating film remained on the surface of a sample is treated promptly, accurately and easily. CONSTITUTION: The electrolytic pickling device is characterized in that a sample mount(4) to which a sample(3) is fixed is installed at the upper part of an insulation plate(2); cylindrical or disk shaped fixing members(5,6) are consecutively installed at the lower part of the sample mount(4) so that they are coupled and fixed by a coupling nut(8) with a control handle(7) interposed between the fixing members(5,6) and the coupling nut(8); an insulation guide block(10) in which an O-ring(9) is installed and a tapered tube(11) which is inserted at the center of the insulation guide block(10) are formed at the upper side of the insulation plate(2) to which the sample(3) is fixed through the sample mount(4); an aluminum block and an acryl tube(14) are consecutively equipped at the upper side of the tapered tube(11), wherein a nozzle(13) controlling flow of a pickling solution so that the sample(3) is easily pickled is installed at the acryl tube(14); an electrode(19) supported to the lower side of a block(18) is inserted into the acryl tube(14); an aluminum support plate(20) is positioned at the upper side of the block(18) so that the aluminum support plate(20) is integrally coupled to the insulation plate(2) by a coupling bolt and a wing nut(22); and bushes(15) are installed at each corner parts of the upper side of the insulation plate(2) so that an aluminum block is installed on the bushes(15), and the sample(3) is positioned in the aluminum block.

公开(公告)号：KR100290977B1

公开(公告)日：2001-06-01

申请号：KR1019970069257

申请日：1997-12-16

Applicant: 철강융합신기술연구조합 ,  재단법인 포항산업과학연구원

Inventor： 성진경 ,  정진호 ,  전재호 ,  전중환

IPC: C25F1/00

Abstract: PURPOSE: A neutral electrolytic pickling method using brine is provided to prevent acidic wastewater and corrosion of a pickling facility generated in conventional pickling process by electrolytically pickling a hot rolled strip in neutral brine. CONSTITUTION: In a method for pickling a hot rolled strip, the neutral electrolytic pickling method using brine comprises the process of performing electrolytic pickling by dipping the hot rolled strip into the brine having a temperature ranging from 35 to 65 deg.C and a concentration ranging from 3.5 to 10% and impressing electric current to the hot rolled strip within the current density range of 1.2 to 2.0 Å/cm¬2 at a duty cycle of 60% or less.

公开(公告)号：KR1019990052257A

公开(公告)日：1999-07-05

申请号：KR1019970071712

申请日：1997-12-22

Applicant: 철강융합신기술연구조합 ,  재단법인 포항산업과학연구원

Inventor： 정진호 ,  황진화 ,  곽성준 ,  박치록

IPC: C25F7/00

Abstract: 본 발명은, 강(鋼)의 산화물 피막의 제거시, 이를 손쉽고 용이하게 제거할수 있도록한 전해 산세장치에 관한 것으로 그 기술적인 구성은, 전해 산세장치(1)의 절연판(2) 상측으로 시편(3)이 고정되는 시편 지지대(4)가 입설되며, 상기 시편 지지대(4) 하측에는 원통 및 원판상의 고정자(5)(6)가 연설되어 조절 손잡이(7)가 설치되고, 상기 시편(3)이 시편 지지대(4)를 통해 고정되는 절연판(2) 상측에는 절연 가이드 블록(10)과 그 중앙으로 테이퍼관(11)이 내삽되고, 그 상측에 노즐(13)이 설치된 아크릴관(14)이 착설토록 되며, 상기 절연판(2)의 상측 각 모서리부에는 부쉬(15)를 개재하여 ㄷ자 형상의 알루미늄 블록(16)이 설치되어 그 내부에 시편(3)이 위치되며, 상기 아크릴관(14) 내부에는 블록(18) 하측으로 지지되는 전극(19)이 내삽토록 설치되는 것을 요지로 한다.
이에따라서, 시편 표면의 산화물 피막의 제거시, 이를 손쉽고 용이하게 제거할수 있도록 하며, 시편의 표면에 잔존하는 산화물 피막을 전해 산세장치의 간단한 구조에 의해 신속, 정확하고 취급이 용이하게 처리토록 하여 산화물 피막 제거작업의 능률을 향상시킬수 있는 것이다.

公开(公告)号：KR1019990047688A

公开(公告)日：1999-07-05

申请号：KR1019970066196

申请日：1997-12-05

Applicant: 철강융합신기술연구조합 ,  재단법인 포항산업과학연구원

Inventor： 전재호 ,  성진경 ,  정진호 ,  전중환

IPC: C25F1/00

Abstract: 본 발명은 저공해 고속 산세 방법에 관한 것으로,
기계적으로 산화스케일에 균열을 가한 열연 강판을 산세하는데 있어서,
상기 강판을 0.5-5%농도의 HCl 용액 또는 2-10% 농도의 NaCl과의 혼합 산세액을 채운 전해조에 장입하는 단계; 및
상기 전해조에서 음극에 걸고 실온∼80℃의 온도에서 최대 40초동안 전류 밀도 0.2-1.0A/㎠를 걸어 산세시키는 단계;를 포함하는 저공해 고속 산세 방법이 제공된다.
상기한 바에 따르면, 저농도의 HCl용액 또는 저농도의 NaCl과의 혼합 산세액내에서 실온-80℃ 범위내의 적절한 작업 온도하에, 0.2-1.0A/㎠의 전류 밀도를 인가하는 경우 품질 특성이 우수하면서도, 산세 시간을 40초 이하의 단시간으로 단축할 수 있다.

公开(公告)号：KR1019990050194A

公开(公告)日：1999-07-05

申请号：KR1019970069257

申请日：1997-12-16

Applicant: 철강융합신기술연구조합 ,  재단법인 포항산업과학연구원

Inventor： 성진경 ,  정진호 ,  전재호 ,  전중환

IPC: C25F1/00

Abstract: 본 발명은 열간압연시 열연판의 표면에 발생된 산화피막을 제거하는 산세방법에 관한 것이며; 그 목적은 중성 염수에서 열연강판을 전해산세하여 기존산세공정에서 발생하는 산성폐수 및 산세설비의 부식을 방지할 수 있는 산세방법을 제공함에 있다.
상기 목적을 달성하기 위한 본 발명은, 열연강판을 염수에 침지하고, 이 열연강판에 전류를 인가하여 전해산세하여 이루어지는 염수를 이용한 중성 전해산세방법에 관한 것을 그 요지로 한다.

公开(公告)号：KR1020130073594A

公开(公告)日：2013-07-03

申请号：KR1020110141538

申请日：2011-12-23

Applicant: 주식회사 포스코 ,  재단법인 포항산업과학연구원

Inventor： 김종호 ,  이병필 ,  박준표 ,  김성욱 ,  정진호 ,  김명균 ,  석성호 ,  이용현

IPC: C30B11/00 ,  C30B29/06 ,  H01L21/02

Abstract: PURPOSE: A one direction silicon coagulation apparatus is provided to save heating time by using an induction melting furnace for melting and resistance heating for coagulation. CONSTITUTION: An induction heating part (1) is formed in a housing. A hollow part is formed in an induction heating part. A one direction coagulation part (2) is arranged in the housing. The one direction coagulation part has a hollow part connected to the hollow part of the induction heating part. A mold (4) moves the hollow part up and down.

Abstract translation: 目的：提供一种单向硅凝固装置，通过使用感应熔炼炉进行熔化和电阻加热，以节省加热时间。 构成：在壳体中形成感应加热部件（1）。 感应加热部形成中空部。 单向凝固部件（2）布置在壳体中。 单向凝结部具有与感应加热部的中空部连接的中空部。 模具（4）上下移动中空部件。

公开(公告)号：KR100967709B1

公开(公告)日：2010-07-07

申请号：KR1020020083000

申请日：2002-12-24

Applicant: 주식회사 포스코 ,  재단법인 포항산업과학연구원

Inventor： 전중환 ,  정진호

IPC: C23C14/08

Abstract: 본 발명은 실리콘 산화물 증착 도금강판 및 그 제조방법에 관한 것으로, 상기 도금강판은 50 at.% 이하의 산소농도를 가지는 SiO
x (x=0∼1)의 조성의 실리콘 산화물 피막을 포함하며, 상기 실리콘 산화물 증착 도금강판은 실리콘을 증발시키면서 분위기 중의 산소 분압을 제어함으로써 제조된다.
실리콘 산화물, 도금강판, 산소농도, 진공증착

公开(公告)号：KR100660228B1

公开(公告)日：2006-12-21

申请号：KR1020050130044

申请日：2005-12-26

Applicant: 주식회사 포스코 ,  재단법인 포항산업과학연구원

Inventor： 김상원 ,  이규창 ,  박준표 ,  김명균 ,  정진호 ,  서배문

IPC: B22D11/20 ,  B22D11/128

Abstract: A casting slab transfer equipment which can improve productivity of rolling operation by automatically transferring forced cooled medium/high strength aluminum alloy casting slab to an inlet of an initial rolling roll of a rolling mill when performing continuous casting and rolling operation is provided. A casting slab transfer equipment(100) for a continuous aluminum casting and rolling apparatus comprises: a casting slab pressing part(110) for correcting a direction of a casting slab(10) separated from a mold wheel(102) of the continuous aluminum casting and rolling apparatus such that a top end of the casting slab is directed toward a rolling mill; a first casting slab transfer part(120) for pulling the casting slab toward the rolling mill while spreading a casting slab passing through the casting slab pressing part by an opposite load such that the center of a top end of the casting slab becomes the center of rolling rolls of the rolling mill; a casting slab cutting part(130) for cutting a top end portion of the casting slab to a predetermined length to improve straightness of the casting slab; and a second casting slab transfer part(160) for guiding the casting slab to an inlet of rolling rolls of the rolling mill.

Abstract translation: 本发明提供一种铸造板坯输送设备，其在进行连续铸造和轧制操作时，通过自动地将强制冷却的中/高强度铝合金铸造板坯输送到轧机的初始轧制辊的入口，能够提高轧制操作的生产率。 一种用于连续铝铸造和轧制设备的铸坯传送设备（100）包括：用于校正与连铸铝铸件（102）的模轮（102）分离的铸坯（10）的方向的铸坯压制部分（110） 和轧制设备，使得铸坯的顶端指向轧机; 第一铸造板坯传送部分（120），用于在通过铸坯压制部分的铸坯通过相反的载荷展开的同时将铸坯拉向轧机，使得铸坯顶端的中心成为 轧机轧辊; 铸造板坯切割部分（130），用于将铸造板坯的顶端部分切割成预定长度以改善铸造板坯的直线度; 和用于将铸坯引导到轧机的轧辊的入口的第二铸坯传送部分（160）。

公开(公告)号：KR1020040056507A

公开(公告)日：2004-07-01

申请号：KR1020020083000

申请日：2002-12-24

Applicant: 주식회사 포스코 ,  재단법인 포항산업과학연구원

Inventor： 전중환 ,  정진호

IPC: C23C14/08

CPC classification number: C23C14/10 ,  C23C14/0021 ,  C23C14/30 ,  C23C14/541

Abstract: PURPOSE: A steel sheet plated with silicon oxide deposition layer is provided which has superior corrosion resistance and is not harmful to the human body, and method for treating the surface of the plated steel sheet is provided which is capable of replacing with existing chromate post-treatment technology of the plated steel sheet. CONSTITUTION: The steel sheet comprises a silicon oxide coating film comprising SiOx (x=0 to 1) having oxygen concentration of 50 at.% or less, wherein thickness of the silicon oxide coating film is about 10 to 1,000 nm. The method for manufacturing the plated steel sheet comprises a step of forming a silicon oxide coating film by controlling oxygen partial pressure in an atmosphere as evaporating silicon, thereby vacuum evaporating silicon oxide comprising SiOx (x=0 to 1) having oxygen concentration of 50 at.% or less on a plated steel sheet, wherein temperature of the steel sheet in the vacuum evaporation process is controlled to 300 deg.C or less.

Abstract translation: 目的：提供镀有氧化硅沉积层的钢板，其具有优异的耐腐蚀性并且对人体无害，并且提供了能够用现有的铬酸盐后处理替代的镀覆钢板表面的方法， 电镀钢板的处理技术。 构成：钢板包含含氧浓度为50at％以下的SiOx（x = 0〜1）的氧化硅被膜，其中氧化硅被膜的厚度为10〜1000nm左右。 制造电镀钢板的方法包括通过控制氧化硅中的氧气分压来形成氧化硅涂层的步骤，由此真空蒸发包含氧浓度为50的SiO x（x = 0至1）的氧化硅， 在真空蒸镀工序中的钢板的温度控制在300℃以下的镀覆钢板上为％以下。