Black Color Plated Steel Sheet, And Manufacturing Method Thereof

Abstract: The present disclosure relates to: a black color plated steel sheet having, on the surface, a beautiful pattern with a marble texture obtained by subjecting a plated steel sheet having spangles to a constant humidity heat treatment, wherein the marble texture is obtained upon completion of blackening because the degree of blackening varies in accordance with the spangle pattern; and a manufacturing method thereof.

Patent Information

Application #

Filing Date

20 July 2023

Publication Number

40/2023

Publication Type

INA

Invention Field

PHYSICS

Status

Email

Parent Application

Applicants

POSCO CO., LTD

6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY

67 Cheongam-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37673

Inventors

1. KIM, Hye Jeong

#203-704, 42, Yugang-gil 10beon-gil, Yeonil-eup, Nam-gu, Pohang-si, Gyeongsangbuk-do 37655

2. LEE, Kyung Hwang

#110-2101, 6, Sinsong-ro 118beon-gil, Yeonsu-gu, Incheon 21994

3. LEE, Taek Geun

#106-1505, 260, Jigok-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37667

Specification

Documents

Application Documents

#	Name	Date
1	202337048791-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [20-07-2023(online)].pdf	2023-07-20
2	202337048791-STATEMENT OF UNDERTAKING (FORM 3) [20-07-2023(online)].pdf	2023-07-20
3	202337048791-REQUEST FOR EXAMINATION (FORM-18) [20-07-2023(online)].pdf	2023-07-20
4	202337048791-PRIORITY DOCUMENTS [20-07-2023(online)].pdf	2023-07-20
5	202337048791-POWER OF AUTHORITY [20-07-2023(online)].pdf	2023-07-20
6	202337048791-FORM 18 [20-07-2023(online)].pdf	2023-07-20
7	202337048791-FORM 1 [20-07-2023(online)].pdf	2023-07-20
8	202337048791-DRAWINGS [20-07-2023(online)].pdf	2023-07-20
9	202337048791-DECLARATION OF INVENTORSHIP (FORM 5) [20-07-2023(online)].pdf	2023-07-20
10	202337048791-COMPLETE SPECIFICATION [20-07-2023(online)].pdf	2023-07-20
11	202337048791-Proof of Right [11-08-2023(online)].pdf	2023-08-11
12	202337048791-FORM-26 [18-08-2023(online)].pdf	2023-08-18
13	202337048791-FORM 3 [29-12-2023(online)].pdf	2023-12-29