US 12,146,215 B2
Plated steel plate having excellent glossiness and surface property, and method for manufacturing same
Hyeon-Soop Han, Gwangyang-si (KR); Young-Jin Kwak, Gwangyang-si (KR); Tae-Yeob Kim, Gwangyang-si (KR); and Jin-Tae Kim, Gwangyang-si (KR)
Assigned to POSCO CO., LTD, Pohang-si (KR)
Appl. No. 17/414,222
Filed by POSCO, Pohang-si (KR)
PCT Filed Nov. 27, 2019, PCT No. PCT/KR2019/016479
§ 371(c)(1), (2) Date Jun. 15, 2021,
PCT Pub. No. WO2020/130396, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 10-2018-0165569 (KR), filed on Dec. 19, 2018.
Prior Publication US 2022/0042163 A1, Feb. 10, 2022
Int. Cl. C23C 14/16 (2006.01); C08F 222/22 (2006.01); C09D 4/00 (2006.01); C09D 135/02 (2006.01); C22C 18/00 (2006.01); C23C 14/28 (2006.01); C23C 14/58 (2006.01)
CPC C23C 14/16 (2013.01) [C08F 222/22 (2013.01); C09D 4/00 (2013.01); C09D 135/02 (2013.01); C22C 18/00 (2013.01); C23C 14/28 (2013.01); C23C 14/58 (2013.01); C08F 2800/20 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A plated steel sheet having glossiness and surface characteristics, the plated steel sheet including:
a base steel;
a Zn—Mg plating layer formed on the base steel, the Zn—Mg plating layer having a hairline pattern on a surface thereof;
a UV-curable film layer formed directly on the Zn—Mg plating layer; and
a glossiness, the glossiness having a relative value of 60 to 120 when a reflectivity of glass is 100 during measurement of the glossiness using a glossmeter at a measurement angle of 60 degree,
wherein the Zn—Mg plating layer includes 8 to 27 weight % of Mg and a balance of Zn and inevitable impurities, and
the UV-curable film layer has a thickness of 0.8 to 1.2 μm.