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1. 发明授权

KR101136336B1 냉각롤의 보수 방법 有权
标题翻译：冷却辊修理方法
公开(公告)号：KR101136336B1
公开(公告)日：2012-04-20
申请号：KR1020090122671
申请日：2009-12-10
申请人： 주식회사 포스코 , 재단법인 포항산업과학연구원
发明人： 김형준 , 천창근 , 김성욱
IPC分类号： B22D11/06 , B22D11/057 , C23C24/08 , C21D9/38
摘要： 본 발명은 냉각롤의 보수 방법에 관한 것이다. 특히, 박판주조기용 냉각롤을 재사용할 수 있는 보수 방법에 관한 것이다.
본 발명의 일실시예에 따른 냉각롤의 보수 방법은 냉각롤의 채널과 덮개 사이의 용접부에 발생되는 균열부를 보수하는 방법으로서, 상기 냉각롤의 용접부를 검사하는 단계와, 상기 용접부의 균열 검출 부위(균열부)에 코팅홈을 형성하는 단계와, 상기 코팅홈에 코팅 분말을 분사하여 적층시키는 단계와, 상기 냉각롤을 열처리시키는 단계 및 상기 용접부의 코팅 표면을 연마하여 돌출부를 제거하는 단계를 포함한다.
냉각롤, 구리합금롤, 박판주조, 코팅, 열처리

2. 发明公开

KR1020100073409A 고크롬 페라이트계 스테인리스강의 산세방법 有权
标题翻译：采用高铬不锈钢的方法
公开(公告)号：KR1020100073409A
公开(公告)日：2010-07-01
申请号：KR1020080132075
申请日：2008-12-23
申请人： 주식회사 포스코
发明人： 김형준 , 한승용 , 김진석 , 오택수 , 이용헌
IPC分类号： C23G1/02 , C23G1/08 , C22C38/18
CPC分类号： C25F1/06 , C22C38/18 , C23F3/06
摘要： PURPOSE: An acid cleaning method of a high chrome ferritic stainless steel is provided to minimize the product defect of a stainless steel plate by improving the gloss of the steel sheet surface. CONSTITUTION: The acid cleaning method of the high chrome ferritic stainless steel comprises a step of pickling in a sulfuric acid electrolytic cell. The applied current of the sulfuric acid electrolytic cell to the maximum anode is 4.0A / dm^2 or greater. The concentration of the sulfuric acid electrolytic cell is 20~200g/l. The temperature of the solution of the sulfuric acid electrolytic cell is 20~70°C. The steel sheet comprises Cr 18~20 weight% and Si 0.5 weight%. The acid cleaning method operates a neutral salt electrolytic pickling process, a sulfuric acid electrolytic pickling process, a nitric acid electrolytic pickling process.
摘要翻译：目的：提供高铬铁素体不锈钢的酸洗方法，通过提高钢板表面的光泽度来最小化不锈钢板的产品缺陷。构成：高铬铁素体不锈钢的酸洗方法包括在硫酸电解池中酸洗的步骤。硫酸电解池对最大阳极的施加电流为4.0A / dm 2以上。硫酸电解池的浓度为20〜200g / l。硫酸电解液溶液的温度为20〜70℃。该钢板包含Cr 18〜20重量％和Si 0.5重量％。酸洗方法操作中性盐电解酸洗工艺，硫酸电解酸洗工艺，硝酸电解酸洗工艺。

3. 发明公开

KR1020090067473A 연주 구리 몰드의 손상부 보수방법 有权
标题翻译：在连续铸造中修复铜模的变形部分的方法
公开(公告)号：KR1020090067473A
公开(公告)日：2009-06-25
申请号：KR1020070135150
申请日：2007-12-21
申请人： 주식회사 포스코 , 재단법인 포항산업과학연구원
发明人： 김형준 , 김성욱
IPC分类号： B22D11/057
摘要： A method for repairing a damaged part of a continuous casting Cu mold is provided to improve intensity of a coating part by processing a level surface between a coating layer and a mold surface with a grinder. A method for repairing a damaged part of a continuous casting Cu mold comprises the following steps of: heating a coating layer and around part of the coating layer with an LPG-O2 mixing gas torch(310) from room temperature to 450~600°C; cooling the layer at the temperature of 450~600°C; and processing a flat plane between the coating layer and a mold surface with a grinder.
摘要翻译：提供了用于修复连续铸造Cu模具的损坏部分的方法，以通过用研磨机加工涂层和模具表面之间的水平表面来改善涂层部件的强度。用于修复连续铸造Cu模具的损坏部分的方法包括以下步骤：用LPG-O 2混合气体炬（310）从室温至450〜600℃加热涂层和涂层的大部分周围 ; 在450〜600℃的温度下冷却层; 以及用研磨机在涂层和模具表面之间加工平面。

4. 发明公开

KR1020030042985A 아연도금강판용 몰리포스페이트 피막 형성용액, 및 이용액을 이용한 내식성이 우수한 몰리포스페이트처리강판의 제조방법 및 내식성이 우수한 수지피복강판의제조방법 有权
标题翻译：用于形成具有高耐腐蚀性的镀锌钢板上的多磷酸盐涂层的解决方案和用于制造钼酸盐处理钢板和树脂涂层钢板的方法
公开(公告)号：KR1020030042985A
公开(公告)日：2003-06-02
申请号：KR1020010073936
申请日：2001-11-26
申请人： 주식회사 포스코
发明人： 김형준
IPC分类号： C23C22/07
CPC分类号： C23C22/42 , C23C22/44 , C23C22/77 , C23C2222/20
摘要： PURPOSE: Provided is a solution for forming moly-phosphate coating on galvanized steel sheet with high corrosion resistance, and methods for manufacturing moly-phosphate treated steel sheet and resin coated steel sheet with high corrosion resistance using the solution are also provided. CONSTITUTION: The solution for forming moly-phosphate coating on galvanized steel sheet with high corrosion resistance comprises moly ion 17 to 25 g/L, phosphoric acid 15 to 55 g/L, nitric acid ion 8 to 50 g/L, hydrogen silicofluoride 2 to 8g/L and 3-methyl-5-pyrazoline 1 to 25 g/L. The methods for manufacturing moly-phosphate treated steel sheet and resin coated steel sheet with high corrosion resistance using the solution are characterized in that the solution is coated on galvanized steel sheet while keeping the solution in the temperature range of 40 to 80°C, and further resin is coated on the moly-phosphate coat.
摘要翻译：目的：提供一种高耐蚀性镀锌钢板上形成磷酸钼涂层的方法，并且还提供了使用溶液制造具有高耐蚀性的钼磷酸盐处理钢板和树脂涂层钢板的方法。构成：在高耐腐蚀性的镀锌钢板上形成磷酸钼涂层的方案包括17至25g / L的钼离子，15至55g / L的磷酸，8至50g / L的硝酸离子，氢氟硅化物2 至8g / L和3-甲基-5-吡唑啉1至25g / L。使用该溶液制造具有高耐腐蚀性的钼磷酸盐处理钢板和树脂涂层钢板的方法的特征在于，将溶液涂覆在镀锌钢板上，同时将溶液保持在40至80℃的温度范围内，另外的树脂被涂覆在钼磷酸盐涂层上。

5. 发明授权

KR100384625B1 표면균열을 방지할 수 있는 육성용접방법 失效
标题翻译： 표면균열을방지할수있는육성용접법법
公开(公告)号：KR100384625B1
公开(公告)日：2003-05-22
申请号：KR1020000079603
申请日：2000-12-21
申请人： 주식회사 포스코 , 재단법인 포항산업과학연구원 , 대신메탈라이징 주식회사
发明人： 김형준 , 한용희
IPC分类号： B23K9/04
摘要： PURPOSE: A hardfacing method is provided which is capable of improving abrasion resistance of a hardfacing material by fostering a strong material without using of a special device. CONSTITUTION: The hardfacing method capable of preventing surface cracks comprises the steps of classifying the hardfacing materials according to hardness per hardfacing materials of the same series in hardfacing materials; forming a hard layer by hardfacing a hardfacing material having a high hardness in the hardfacing materials of the same series onto the surface of a base metal; and forming a soft layer by hardfacing a hardfacing material having a low hardness onto the surface of the hard hardfacing layer under the hardfacing conditions that a weld heat affected zone extends to an interface region of the base metal and the hard layer, wherein the hard layer is roughed to a thickness of 2 mm or less, and the soft layer is hardfaced to a thickness of 1 to 2 mm, the hardfacing material applied to the soft layer does not produce cracks under the hardfacing conditions that a weld heat affected zone extends to an interface region of the base metal and the hard layer, and the hardfacing material is a nickel based alloy, a cobalt based alloy, or an iron based alloy.
摘要翻译：目的：提供一种表面硬化方法，其能够通过在不使用特殊装置的情况下培养坚固材料来改善表面硬化材料的耐磨性。构成：能够防止表面裂纹的表面硬化方法包括以下步骤：根据表面硬化材料中每个表面硬化材料的硬度对硬面材料进行分类; 通过在相同系列的表面硬化材料中硬化具有高硬度的表面硬化材料到基体金属表面而形成硬质层; 以及通过在硬面层条件下硬面堆焊具有低硬度的硬面材料到硬面层的表面上来形成软层，其中硬面层条件是焊接热影响区域延伸到基层金属和硬层的界面区域，粗化至2mm或更小的厚度，并且将软层硬化至1至2mm的厚度，施加至软层的表面硬化材料在硬化表面条件下不产生裂纹，焊接热影响区延伸至所述基体金属和所述硬质层的界面区域，并且所述表面硬化材料是镍基合金，钴基合金或铁基合金。

6. 发明授权

KR100368245B1 용접균열이 적은 니켈계 합금의 플라즈마 분말 육성용접방법 失效
标题翻译： 용접이적은니켈계합금의플라즈마분말육성용접방
公开(公告)号：KR100368245B1
公开(公告)日：2003-01-24
申请号：KR1020000079916
申请日：2000-12-21
申请人： 주식회사 포스코 , 재단법인 포항산업과학연구원 , 제일 엠.피.티 주식회사
发明人： 윤병현 , 김형준
IPC分类号： B23K9/18
摘要： PURPOSE: A method for plasma transferred arc(PTA) welding Ni based alloys, especially Ni based alloys added with Nb is provided to inhibit the growth of Laves phase due to segregation of Nb precipitates along boundaries of dendrite. CONSTITUTION: In a method for plasma transferred arc welding Ni based alloys, the present invention is characterized in that welding operation is regulated to adjust dilution rate within the range of 15 to 35% and Ni based alloy powder is fed at a rate of 3.3 kg/hr as applying electric current of 170-210A.
摘要翻译：目的：提供等离子转移电弧（PTA）焊接Ni基合金，尤其是添加有Nb的Ni基合金的方法，以抑制由于Nb析出物沿枝晶边界偏析而引起的Laves相的生长。构成：在等离子体转移电弧焊接Ni基合金的方法中，本发明的特征在于，调节焊接操作以将稀释率调节到15-35％的范围内，并且将Ni基合金粉末以3.3kg /小时，施加170-210A的电流。

7. 发明授权

KR100347583B1 우수한 스텔라이트 6육성층을 얻기위한 플라즈마육성용접 방법 失效
公开(公告)号：KR100347583B1
公开(公告)日：2002-11-20
申请号：KR1019960069944
申请日：1996-12-23
申请人： 주식회사 포스코 , 재단법인 포항산업과학연구원
发明人： 김형준 , 윤익찬 , 강윤하
IPC分类号： B23K10/02
摘要： PURPOSE: Provided is a plasma transferred arc (PTA) process for obtaining stellite-6 overlay welded coatings having excellent surface hardness. CONSTITUTION: In a plasma overlay welding method using stellite-6 overlay welded coatings comprising C 1.2 wt.%, Ni 2.1 wt.%, Cr 28.0 wt.%, Co 62.9 wt.%, Fe 1.8 wt.%, W 4.0 wt.%, the method is characterized in that pretreatment temperature is 50 to 100°C; powder feeding rate is 2.0 to 2.2 kg/hr, torch transfer rate is 6.0 to 8.0 cm/min, arc current is 140 to 160 A, oscillation rate is 70 to 100 cm/min.

8. 发明授权

KR100345732B1 단열코팅방법 失效
公开(公告)号：KR100345732B1
公开(公告)日：2002-09-18
申请号：KR1019970071409
申请日：1997-12-20
申请人： 주식회사 포스코 , 재단법인 포항산업과학연구원
发明人： 김형준 , 권영각
IPC分类号： C23C4/04
摘要： PURPOSE: To obtain a coating layer with improved thermal resistance by forming a triple thermal barriers on a substrate, thus minimizing residual stress due to difference of coefficient of thermal expansion. CONSTITUTION: The coating method for thermal barrier includes the steps of bond coating one alloy powder on the surface of a substrate, wherein the alloy powder is selected from (a) an alloy powder consisting of Cr 20 to 30 wt.%, Al 5 to 15 wt.%, Y 0.5 to 1 wt.% and a balance of one or two kinds of metals selected from the group consisting of Ni, Co and Fe, (b) an alloy powder consisting of Cr 20 to 30 wt.%, Al 5 to 15 wt.%, and a balance of one or two kinds of metals selected from the group consisting of Ni, Co and Fe, and (c) an alloy powder consisting of Cr 20 to 30 wt.% a balance of one or two kinds of metals selected from the group consisting of Ni, Co and Fe; coating a mixed powder of ceramic powder and alloy powder on the substrate, wherein the mixing ratio of ceramic powder and alloy powder is 50-75 wt.%:25-50 wt.%, the ceramic powder consisting of 70 to 80 wt.% of ZrO2 and 20 to 30 wt.% of MgO, the alloy powder consisting of 10 to 30 wt.% of Cr, 5 to 10 wt.% of Al, a balance of Ni; top coating a ceramic powder consisting of Al2O3 60 to 80 wt.% and MgO 20 to 40 wt.% on the substrate.

9. 发明公开

KR1020020044651A 도장 밀착성이 우수한 주석도금강판용 크로메이트 피막의형성방법 无效
标题翻译：用于形成镀铬涂层的镀层的方法，具有优异的涂料粘合性
公开(公告)号：KR1020020044651A
公开(公告)日：2002-06-19
申请号：KR1020000073644
申请日：2000-12-06
申请人： 주식회사 포스코
发明人： 김형준
IPC分类号： C23C22/24
CPC分类号： C25D11/38 , C25D21/14
摘要： PURPOSE: A method for forming a chromate coating for tin coating steel sheet with excellent paint adherence with no addition of specific elements is provided. CONSTITUTION: The method is characterized in that a chromate solution having a sodium dichromate concentration of 20 to 30g/L is electro-coated on the surface of tin plate in an amount of 3.0 to 4.0 C/dm¬2. In the method, the chromate solution has a temperature range of 46 to 55°C, and a pH range of 4.0 to 5.0.
摘要翻译：目的：提供一种用于形成镀锡钢板的铬酸盐涂层的方法，其具有优异的涂料粘附性，而不添加特定元素。构成：该方法的特征在于，将重铬酸钠浓度为20〜30g / L的铬酸盐溶液以3.0〜4.0C / dm 2的量电镀在锡板的表面上。在该方法中，铬酸盐溶液的温度范围为46〜55℃，pH范围为4.0〜5.0。

10. 发明公开

KR1020000037738A 강판의내식성및표면외관을향상시키는3가크롬용액 有权
标题翻译：用于提高钢板耐腐蚀性和外观外观的功能3铬溶液
公开(公告)号：KR1020000037738A
公开(公告)日：2000-07-05
申请号：KR1019980052470
申请日：1998-12-02
申请人： 주식회사 포스코
发明人： 강춘호 , 김형준
IPC分类号： C23C22/33
CPC分类号： C23C22/53 , C23C2222/10
摘要： PURPOSE: A functional 3 chrome solution is provided to enhance the corrosion resistance of a steel plate coated on a zinc-coated steel plate and the external appearance of the surface. CONSTITUTION: A functional 3 chrome solution, a phosphate additional agent and Zr or Ti coupling agent are mixed. Then a chrome film using 6-chrome or a similar film is formed on a zinc-coated steel plate. Thus, corrosion resistance, the external appearance of the surface, the attachment amount of the film and the film processing property are improved. The excellent corrosion resistance as the merit of chrome and external appearance of the surface is obtained by chromate-processing with the functional 3 chrome which is not harmful to a human body and an environment.
摘要翻译：目的：提供功能性3铬溶液，以提高涂覆在镀锌钢板上的钢板的耐腐蚀性和表面的外观。构成：混合功能性3铬溶液，磷酸盐附加剂和Zr或Ti偶联剂。然后在镀锌钢板上形成使用6铬或类似膜的铬膜。因此，提高了耐腐蚀性，表面的外观，膜的附着量和膜加工性。通过对不对人体和环境无害的功能性3铬进行铬酸盐化处理，获得了铬的优点和表面外观的优异的耐腐蚀性。

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