公开(公告)号：US20230030466A1

公开(公告)日：2023-02-02

申请号：US17787182

申请日：2020-12-03

Applicant: POSCO

Inventor： Young-Jin Kwak ,  Woo-Sung Jung

IPC: B32B15/01 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C18/00 ,  C23C14/16 ,  C23C14/26

Abstract: The present disclosure relates to a zinc-based coated steel material having excellent corrosion resistance and spot weldability and, more particularly, to a zinc-based coated steel material plated with a multilayer zinc alloy, which has two or more layers, and having excellent corrosion resistance and spot weldability. A zinc-based coated steel material according to an aspect of the present disclosure includes: a base steel; and a multilayer zinc-based plating layer composed of two or more discriminated plating layers, in which the multilayer zinc-based plating layer may include Mg of 0.12˜0.64 percent by weight.

公开(公告)号：US20150218705A1

公开(公告)日：2015-08-06

申请号：US14367714

申请日：2012-12-21

Applicant: POSCO

Inventor： Yeon-Ho Kim ,  Young-Jin Kwak ,  Yon-Kyun Song ,  Yang-Ho Choi ,  Tae-Yeob Kim ,  Kyoung-Pil Ko ,  Chang-Hoon Choi ,  Jong-Sang Kim

IPC: C23C28/00 ,  C23C30/00 ,  C23C22/07 ,  C23C22/73 ,  C23C22/76

CPC classification number: C23C28/321 ,  C23C2/26 ,  C23C22/07 ,  C23C22/44 ,  C23C22/53 ,  C23C22/73 ,  C23C22/76 ,  C23C22/78 ,  C23C22/83 ,  C23C28/00 ,  C23C28/3225 ,  C23C28/34 ,  C23C28/345 ,  C23C28/3455 ,  C23C30/005 ,  Y10T428/12535 ,  Y10T428/12549

Abstract: A conversion coating composition comprising 0.01 wt % to 0.2 wt % of phosphorous (P); 0.01 wt % to 0.2 wt % of magnesium (Mg); 0.005 wt % to 0.15 wt % of zirconium (Zr); 0.005 wt % to 0.15 wt % of titanium (Ti); 0.005 wt % to 0.15 wt % of vanadium (V); 0.05 wt % to 1 wt % of phenol resin; the balance of water and other unavoidable impurities is provided. A surface treated steel sheet comprising a base steel sheet; a zinc or zinc alloy plated layer formed on the base steel sheet; a blackening layer formed on the zinc or zinc alloy plated layer; and an organic and inorganic complex conversion coating layer formed on the blackening layer, wherein the organic and inorganic complex conversion coating layer may satisfy the weight ratio of P:Mg:Zr:Ti:V=1:0.045 to 2:0.035 to 1.5:0.035 to 1.3:0.035 to 1.5 (based on the weight of P) is also provided. A method for manufacturing a steel sheet treated with the conversion coating composition is also provided.

Abstract translation: 包含0.01重量％至0.2重量％的磷（P）的转化涂料组合物; 0.01重量％〜0.2重量％的镁（Mg）; 0.005重量％〜0.15重量％的锆（Zr）; 0.005重量％〜0.15重量％的钛（Ti）; 0.005重量％至0.15重量％的钒（V）; 0.05重量％〜1重量％的酚醛树脂; 提供了水和其他不可避免的杂质的平衡。 1.一种表面处理钢板，包括基材钢板; 形成在基材钢板上的锌或锌合金镀层; 形成在锌或锌合金镀层上的黑化层; 以及形成在黑化层上的有机和无机复合转化涂层，其中有机和无机复合转化涂层可以满足P:Mg:Zr:Ti:V = 1:0.045-2:0.035-1.5:2的重量比。 0.035〜1.3：0.035〜1.5（基于P的重量）。 还提供了用转化涂料组合物处理的钢板的制造方法。

公开(公告)号：US11203802B2

公开(公告)日：2021-12-21

申请号：US16472475

申请日：2017-12-21

Applicant: POSCO

Inventor： Young-Jin Kwak ,  Tae-Yeob Kim

IPC: B32B15/00 ,  C22C38/06 ,  B23K26/22 ,  B23K35/30 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C23C14/02 ,  C23C14/14 ,  C23C14/28 ,  C23C14/50 ,  B23K103/04

Abstract: Provided are a single layer zinc alloy plated steel material and a fabrication method therefor, the single layer zinc alloy plated steel material comprising a base iron and a zinc alloy plating layer formed on the base iron, wherein the zinc alloy plating layer contains 13-24 wt % of Mg, and the adhesion amount of the zinc alloy plating layer is at most 40 g/m2 (excluding 0 g/m2).

公开(公告)号：US11192336B2

公开(公告)日：2021-12-07

申请号：US16472445

申请日：2017-12-21

Applicant: POSCO

Inventor： Young-Jin Kwak ,  Du-Youl Choi

IPC: B32B15/01 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C14/16 ,  C23C14/26 ,  C23C14/58 ,  C23C28/02 ,  C25D3/22 ,  C25D5/50

Abstract: Provided are a zinc alloy plated steel and a method for manufacturing same, the zinc alloy plated steel comprising: a base iron; a Zn plated layer formed on top of the base iron; and a Zn—Mg alloy layer formed on top of the Zn plated layer and obtained through mutual diffusion of Zn and Mg, wherein the ratio of the weight of Mg contained in the Zn—Mg alloy layer with respect to the total weight of the Zn plated layer and the Zn—Mg alloy layer is 0.13 to 0.24, and the sum of the adhesion quantity of the Zn layer and the Zn—Mg alloy layer is no more than 40 g/m2 (more than 0 g/m2).

公开(公告)号：US10457834B2

公开(公告)日：2019-10-29

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 ,  C09D5/08 ,  C08G18/50 ,  B32B15/095 ,  C08G18/75 ,  C08G18/08 ,  C08G18/10 ,  C09D175/06 ,  C08G18/34 ,  C08G18/44 ,  C23C22/74 ,  C09D7/40 ,  C09D7/65

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：US10190221B2

公开(公告)日：2019-01-29

申请号：US15102833

申请日：2014-12-12

Applicant: POSCO

Inventor： Myung-Soo Kim ,  Hyeon-Seok Hwang ,  Young-Jin Kwak

IPC: B32B15/01 ,  C23C28/02 ,  C23C2/12 ,  C23C14/14 ,  C23C2/28 ,  C23C28/00 ,  B21D22/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C22C38/60 ,  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：US09441302B2

公开(公告)日：2016-09-13

申请号：US14368724

申请日：2012-12-27

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: C23C14/14 ,  C23C16/40 ,  C23C28/00 ,  C23C14/16 ,  C23C16/453 ,  C23C30/00

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: Provided is a method for manufacturing a Zn—Mg alloy-coated steel sheet having high blackening resistance and coating adhesion. In one implementation, the method may include forming a Zn—Mg coating layer on a base steel sheet and performing a combustion chemical vapor deposition (CCVD) process to form an oxide film. The oxide film may include a metal oxide and the metal oxide may include silicon oxide (SiO2) and magnesium oxide (MgO). The base steel sheet may be maintained within a temperature range of 330° C. to 450° C. during the performing of the CCVD process.

Abstract translation: 提供一种具有高耐黑变性和涂层附着力的Zn-Mg合金涂层钢板的制造方法。 在一个实施方案中，该方法可以包括在基体钢板上形成Zn-Mg涂层并进行燃烧化学气相沉积（CCVD）工艺以形成氧​​化膜。 氧化物膜可以包括金属氧化物，并且金属氧化物可以包括氧化硅（SiO 2）和氧化镁（MgO）。 在执行CCVD工艺期间，基础钢板可以保持在330℃至450℃的温度范围内。

公开(公告)号：US12146215B2

公开(公告)日：2024-11-19

申请号：US17414222

申请日：2019-11-27

Applicant: POSCO

Inventor： Hyeon-Soop Han ,  Young-Jin Kwak ,  Tae-Yeob Kim ,  Jin-Tae Kim

IPC: C23C14/16 ,  C08F222/22 ,  C09D4/00 ,  C09D135/02 ,  C22C18/00 ,  C23C14/28 ,  C23C14/58

Abstract: Provided is a plated steel plate used for interior materials and exterior materials such as home appliances, construction materials, vehicles, etc., and a method for manufacturing same. The plated sheet plate includes: base steel; a Zn—Mg plating layer formed on the base steel; and a UV-curable film layer formed on the Zn—Mg plating layer, wherein a hairline pattern is formed on a surface of the Zn—Mg plating layer, and the Zn—Mg plating layer includes 8 to 27 weight % of Mg and a balance of Zn and inevitable impurities.

公开(公告)号：US11414743B2

公开(公告)日：2022-08-16

申请号：US16957513

申请日：2018-12-13

Applicant: POSCO

Inventor： Young-Jin Kwak ,  Woo-Sung Jung ,  Tae-Yeob Kim

IPC: B32B15/00 ,  C23C14/24 ,  C21D8/00 ,  C22C18/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C14/16 ,  C23C14/22 ,  C23C28/02

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：US11208716B2

公开(公告)日：2021-12-28

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 ,  C23C14/24 ,  C23C28/02 ,  C22C18/00 ,  C22C23/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  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.