公开(公告)号：US20220074040A1

公开(公告)日：2022-03-10

申请号：US17529788

申请日：2021-11-18

Applicant: POSCO

Inventor： Young-Jin KWAK ,  Goo-Hwa KIM ,  Mun-Jong EOM ,  Seok-Jun HONG ,  Kyoung-Pil KO ,  Yong-Hwa JUNG ,  Dong-Yoeul LEE ,  Tae-Yeob KIM ,  Kyung-Hoon NAM

IPC: C23C14/16 ,  C22C18/00 ,  C22C23/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C14/24 ,  C23C28/02 ,  C23C30/00 ,  C22C38/60 ,  C23C2/28 ,  C23C2/26 ,  C23C2/00 ,  C23C28/00 ,  C23C14/14 ,  C23C2/40 ,  C23C2/04 ,  C23C2/06 ,  B32B15/01 ,  C22C23/04 ,  B32B15/04 ,  B32B15/18

Abstract: Provided is a multilayer zinc alloy plated steel material comprising a base steel material and multiple plating layers formed on the base steel material, wherein each of the multiple plating layers includes one of a Zn plating layer, a Mg plating layer, and a Zn—Mg alloy plating layer, and the ratio of the weight of Mg contained in the multiple plating layers to the total weight of the multiple plating layers is from 0.13 to 0.24.

公开(公告)号：US20160355926A1

公开(公告)日：2016-12-08

申请号：US15238358

申请日：2016-08-16

Applicant: POSCO

Inventor： Dong-Yoeul LEE ,  Kyung-Hoon NAM ,  Yong-Hwa JUNG ,  Seok-Jun HONG ,  Tae-Yeob KIM ,  Young-Jin KWAK ,  Mun-Jong EOM ,  Woo-Sung JUNG

IPC: C23C16/453 ,  C23C14/16 ,  C23C28/00 ,  B32B15/01 ,  C23C16/40

CPC classification number: C23C16/453 ,  B32B15/013 ,  C23C14/16 ,  C23C14/165 ,  C23C14/58 ,  C23C14/5846 ,  C23C14/5853 ,  C23C16/40 ,  C23C16/401 ,  C23C16/402 ,  C23C16/403 ,  C23C16/404 ,  C23C28/02 ,  C23C28/021 ,  C23C28/023 ,  C23C28/321 ,  C23C30/00 ,  C23C30/005 ,  Y10T428/12583 ,  Y10T428/1259 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12792 ,  Y10T428/12799 ,  Y10T428/12972 ,  Y10T428/12979

Abstract: The present invention relates to a Zn—Mg alloy-coated steel sheet with excellent blackening resistance and excellent coating adhesion and to a method for manufacturing same. Provided are a Zn—Mg alloy-coated steel sheet with excellent blackening resistance and excellent adhesion and a method for manufacturing same, the steel sheet comprising: a substrate steel sheet; a Zn—Fe intermetallic compound layer formed on the substrate steel sheet; a first Zn—Mg coating layer formed on the Zn—Fe intermetallic compound layer and comprising a Zn—Fe intermetallic compound in which the content of Zn is 95% by weight or higher; a second Zn—Mg coating layer formed on the first Zn—Mg coating layer and comprising a Zn—Mg intermetallic compound in which the content of Zn is 80 to 95% by weight; and an oxide film formed on the second. Zn—Mg coating layer and comprising a metallic oxide.

Abstract translation: 本发明涉及具有优异的耐黑变性和优异的涂层密合性的Zn-Mg合金涂层钢板及其制造方法。 提供具有优异的耐黑变性和优异的粘附性的Zn-Mg合金涂层钢板及其制造方法，该钢板包括：基材钢板; 形成在基板钢板上的Zn-Fe金属间化合物层; 形成在Zn-Fe金属间化合物层上的第一Zn-Mg涂层，其包含Zn含量为95重量％以上的Zn-Fe金属间化合物; 形成在所述第一Zn-Mg涂层上并且包含其中Zn含量为80至95重量％的Zn-Mg金属间化合物的第二Zn-Mg涂层; 和形成在第二层上的氧化膜。 Zn-Mg涂层，并且包含金属氧化物。

公开(公告)号：US20200002803A1

公开(公告)日：2020-01-02

申请号：US16471943

申请日：2017-12-22

Applicant: POSCO

Inventor： Young-Jin KWAK ,  Goo-Hwa KIM ,  Mun-Jong EOM ,  Seok-Jun HONG ,  Kyoung-Pil KO ,  Yong-Hwa JUNG ,  Dong-Yoeul LEE ,  Tae-Yeob KIM ,  Kyung-Hoon NAM

IPC: C23C14/16 ,  C22C18/00 ,  C22C23/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C14/24 ,  C23C28/02

Abstract: Provided is a multilayer zinc alloy plated steel material comprising a base steel material and multiple plating layers formed on the base steel material, wherein each of the multiple plating layers includes one of a Zn plating layer, a Mg plating layer, and a Zn—Mg alloy plating layer, and the ratio of the weight of Mg contained in the multiple plating layers to the total weight of the multiple plating layers is from 0.13 to 0.24.

公开(公告)号：US20150329972A1

公开(公告)日：2015-11-19

申请号：US14758170

申请日：2012-12-28

Applicant: POSCO

Inventor： Young-Jin KWAK ,  Kyung-Hoon NAM ,  Yong-Hwa JUNG ,  Tae-Yeob KIM ,  Dong-Yoeul LEE ,  Seok-Won CHO ,  Young-Ra LEE ,  Mun-Jong EOM ,  Woo-Sung JUNG ,  Seok-Jun HONG ,  Jae-Kyu MIN ,  Hong-Kyun SOHN

IPC: C23C18/16 ,  C23C18/48 ,  C23C18/31

CPC classification number: C23C18/1637 ,  C23C18/31 ,  C23C18/48 ,  C23C22/42 ,  C23C28/321 ,  C23C28/3225 ,  C23C28/34 ,  Y10T428/12667 ,  Y10T428/12799

Abstract: A phosphate solution for a zinc or zinc-based alloy plated steel sheet, and a zinc or zinc-based alloy plated steel sheet using the same are provided. The phosphate solution for a zinc or zinc-based alloy plated steel sheet contains a molybdenum (Mo) ion, a calcium (Ca) ion and a phosphate ion. A zinc or zinc-based alloy plated steel sheet includes a base steel sheet, a zinc-based or zinc alloy-based plating layer formed on the base steel sheet, and a phosphate film formed on the zinc-based or zinc alloy-based plating layer. The phosphate film contains a molybdenum compound, Ca and a phosphate. A pitting phenomenon occurring at the time of treating a steel sheet with a phosphate is prevented, and excellent corrosion resistance is exhibited on a phosphate film.

Abstract translation: 提供了一种用于锌或锌基合金镀覆钢板的磷酸盐溶液，以及使用其的锌或锌基合金镀覆钢板。 锌或锌基合金镀覆钢板的磷酸盐溶液含有钼（Mo）离子，钙（Ca）离子和磷酸根离子。 锌或锌系合金镀覆钢板包括基体钢板，形成在基体钢板上的锌基或锌合金基镀层以及形成在锌基或锌合金基镀层上的磷酸盐膜 层。 磷酸盐膜含有钼化合物，Ca和磷酸盐。 防止了在用磷酸盐处理钢板时发生的点蚀现象，并且在磷酸盐膜上表现出优异的耐腐蚀性。

公开(公告)号：US20190136386A1

公开(公告)日：2019-05-09

申请号：US16235716

申请日：2018-12-28

Applicant: POSCO

Inventor： Myung-Soo KIM ,  Hyeon-Seok HWANG ,  Young-Jin KWAK

IPC: C23C28/02 ,  B21D22/02 ,  C23C28/00 ,  C23C14/14 ,  C23C2/28 ,  C23C2/12 ,  C22C38/60 ,  C22C38/38 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/24 ,  C22C38/22 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  B32B15/01 ,  C23C24/02

Abstract: The present invention relates to a plated steel sheet for hot press forming, a hot-press forming member manufactured using the same, and a manufacturing method thereof. The plated steel sheet comprises: a base steel sheet and a composite plated layer that is formed on at least one surface of the base steel sheet, and has a Mn-based plated layer and an Al-based plated layer alternately formed therein, an Al-based plated layer being formed on the uppermost layer thereof, wherein the composite plated layer has a total thickness of 5 to 30 μm, and in this case, the Mn-based plated layer accounts for 5 to 60% of the total thickness.

公开(公告)号：US20150352812A1

公开(公告)日：2015-12-10

申请号：US14758222

申请日：2012-12-28

Applicant: POSCO

Inventor： Woo-Sung JUNG ,  Seok-Jun HONG ,  Kyung-Hoon NAM ,  Dong-Yoeul LEE ,  Yong-Hwa JUNG ,  Young-Jin KWAK ,  Mun-Jong EOM ,  Tae-Yeob KIM

IPC: B32B15/01 ,  C23C14/34 ,  C23C14/16 ,  C23C14/26 ,  C23C14/30

CPC classification number: B32B15/013 ,  C22C18/00 ,  C23C14/16 ,  C23C14/26 ,  C23C14/30 ,  C23C14/34 ,  C23C14/3414 ,  C23C14/562 ,  Y10T428/12799

Abstract: Provided are a Zn—Mg alloy plated steel sheet and a method for manufacturing same. The Zn—Mg alloy plated steel sheet comprises a base steel sheet and a Zn—Mg plating layer formed on the base steel sheet, wherein the content of Mg in the Zn—Mg plating layer is 8 weight % or less (provided that 0 weight % is excluded), and the Zn—Mg plating layer is a compound phase of Zn and Mg2Zn11. According to the present invention, provided are a Zn—Mg alloy plated steel sheet and a method for manufacturing the same, wherein the Zn—Mg alloy plated steel sheet has excellent corrosion resistance, high adhesion, and superior surface quality of metallic luster.

Abstract translation: 本发明提供镀Zn-Mg合金钢板及其制造方法。 镀Zn-Mg合金镀钢板包括基材钢板和形成在基体钢板上的Zn-Mg镀层，其中Zn-Mg镀层中的Mg含量为8重量％以下（设0重量 ％），Zn-Mg电镀层是Zn和Mg2Zn11的复合相。 根据本发明，提供一种Zn-Mg合金镀覆钢板及其制造方法，其中镀锌钢合金镀层钢板具有优异的耐腐蚀性，高粘合性和优异的金属光泽表面质量。

公开(公告)号：US20220025508A1

公开(公告)日：2022-01-27

申请号：US17414235

申请日：2019-12-19

Applicant: POSCO

Inventor： Young-Jin KWAK ,  Woo-Sung JUNG ,  Hyeon-Soop HAN ,  Kyoung-Pil KO ,  Tae-Yeob KIM

IPC: C23C14/16 ,  C23C14/26

Abstract: Provided is a coated steel sheet which can be used in vehicles, home appliances, construction materials, and the like, and more specifically, to a heterogeneous coated steel sheet having a zinc coating layer formed on one surface thereof and a zinc-magnesium coating layer formed on the other surface thereof. The heterogeneous coated steel sheet includes: a steel sheet; a zinc coating layer attached to one side of the steel sheet; and a zinc-magnesium alloy coating layer attached to the other side of the steel sheet, wherein a coating adhesion amount of the zinc coating layer is 5 to 60 g/m2, a coating adhesion amount of the zinc-magnesium alloy coating layer is 10 to 40 g/m2, and a magnesium content of the zinc-magnesium alloy coating layer is 8 to 30 wt %.

公开(公告)号：US20210002772A1

公开(公告)日：2021-01-07

申请号：US16957513

申请日：2018-12-13

Applicant: POSCO

Inventor： Young-Jin KWAK ,  Woo-Sung JUNG ,  Tae-Yeob KIM

IPC: C23C28/02 ,  C23C14/22 ,  C23C14/16 ,  C23C14/24 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C21D8/00 ,  C22C18/00

Abstract: Provided is a multilayered zinc alloy plated steel material comprising a base iron and multilayered plated layers formed on the base iron, wherein each of the multilayered plated layers is any one of a Zn-plated layer, a Mg-plated layer, and a Zn—Mg alloy-plated layer, and the ratio of the weight of Mg contained in the multilayered plated layers is 0.13-0.24 on the basis of the total weight of the multilayered plated layers.

公开(公告)号：US20170369735A1

公开(公告)日：2017-12-28

申请号：US15539652

申请日：2015-12-22

Applicant: POSCO ,  NOROO COIL COATINGS CO., LTD.

Inventor： Young-Jin KWAK ,  Tae-Yeob KIM ,  Dong-Yun KIM ,  Yong-Jin CHO ,  Myoung-Hee CHOI

IPC: C09D175/04 ,  C08G18/50 ,  C09D5/08

CPC classification number: C09D175/04 ,  B32B15/095 ,  B32B2255/06 ,  C08G18/0823 ,  C08G18/10 ,  C08G18/348 ,  C08G18/44 ,  C08G18/5096 ,  C08G18/755 ,  C09D5/08 ,  C09D5/084 ,  C09D7/40 ,  C09D7/65 ,  C09D175/06 ,  C23C22/74 ,  C23C2222/20 ,  C08G18/3206 ,  C08G18/3231 ,  C08G18/3893

Abstract: The present invention provides a chromium-free coating composition having high blackening resistance and corrosion resistance, the composition comprising: 20 to 70 wt % of waterborne silane modified polyurethane; 0.5 to 5 wt % of a hardener; 0.5 to 5 wt % of a blackening inhibitor; 0.5 to 5 wt % of a corrosion inhibitor; and 0.5 to 5 wt % of a lubricant, with the balance being a solvent. The chromium-free coating composition has the effect of improving blackening resistance, corrosion resistance, alkali resistance, solvent resistance and fingerprint resistance of a steel sheet on which a coating layer comprising the composition is formed.

公开(公告)号：US20170029955A1

公开(公告)日：2017-02-02

申请号：US15102833

申请日：2014-12-12

Applicant: POSCO

Inventor： Myung-Soo KIM ,  Hyeon-Seok HWANG ,  Young-Jin KWAK

IPC: C23C28/02 ,  C23C24/02 ,  C22C38/60 ,  C22C38/38 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/24 ,  C22C38/22 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  B32B15/01 ,  B21D22/02 ,  C23C2/12

CPC classification number: C23C28/021 ,  B21D22/022 ,  B32B15/011 ,  B32B15/012 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C22C38/60 ,  C23C2/12 ,  C23C2/28 ,  C23C14/14 ,  C23C24/02 ,  C23C28/42

Abstract: The present invention relates to a plated steel sheet for hot press forming, a hot-press forming member manufactured using the same, and a manufacturing method thereof. The plated steel sheet comprises: a base steel sheet and a composite plated layer that is formed on at least one surface of the base steel sheet, and has a Mn-based plated layer and an Al-based plated layer alternately formed therein, an Al-based plated layer being formed on the uppermost layer thereof, wherein the composite plated layer has a total thickness of 5 to 30 μm, and in this case, the Mn-based plated layer accounts for 5 to 60% of the total thickness.

Abstract translation: 本发明涉及一种热压成形用镀覆钢板，使用其制造的热压成形件及其制造方法。 电镀钢板包括：基体钢板和形成在基体钢板的至少一个表面上的复合镀层，并且其中交替地形成有Mn基镀层和Al系镀层，Al 的镀层形成在其最上层，其中复合镀层的总厚度为5〜30μm，在这种情况下，Mn系镀层占总厚度的5〜60％。