Black plated steel sheet and its manufacturing method

JP7765476B2Active Publication Date: 2025-11-06POHANG IRON & STEEL CO LTD +1
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Patent Information

Application Number
JP2023537637
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-12-21
Filing Date
2021-12-21
Publication Date
2025-11-06
Estimated Expiration
2041-12-21

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Abstract

The present disclosure relates to a black-plated steel sheet having a beautiful pattern with a marble-like surface when blackening is completed by subjecting a plated steel sheet having spangles formed thereon to a moist heat resistance treatment, and a method for manufacturing the same.
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Citation Information

Patent Citations

  • Manufacture of galvanized steel plate with superior corrosion resistance and coatability

    JP1983177447A

  • Hot dip galvanized steel sheet and its manufacture

    JP1986133371A

  • Method for producing black-plated steel sheet and method for producing molded article of black-plated steel sheet

    JP2013241671A

  • Method for evaluating quality of water-vapor-treated product

    WO2018180169A1