Title:
CUT ARTICLE, AND GUARDRAIL
Document Type and Number:
WIPO Patent Application WO/2024/070812
Kind Code:
A1
Abstract:
Provided is a cut article of a Zn-Al-Mg-plated steel material having a base steel material and a Zn-Al-Mg plating layer covering the surface of the base steel material, wherein a cut end surface of the cut article is coated with a linear film in which components of the Zn-Al-Mg plating layer flow in a linear fashion, the percentage of the cut end surface coated with the linear film is 60-90%, the non-plated surface of the base steel material and the linear film around the non-plated surface on the cut end of the cut article are coated with a repair coating film, the initial coating film resistance value of the repair coating film is 10-1000 Ω/cm2, the coating film resistance value after the cut article has been immersed in 5 mass% brine for three hours is 5-50 Ω/cm2, and the thickness of the repair coating film is 10-100 μm. Also provided is a guardrail in which the cut article is utilized.
Inventors:
HAYASHIDA TAKAHIDE (JP)
Application Number:
PCT/JP2023/033916
Publication Date:
April 04, 2024
Filing Date:
September 19, 2023
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C23F11/00; B23D15/00; C23C2/06; C23C2/26; C23C28/00; E01F15/04
Domestic Patent References:
| WO2022139294A1 | 2022-06-30 |
Foreign References:
| JP2005314501A | 2005-11-10 | |||
| JP2002317492A | 2002-10-31 | |||
| JP2017209727A | 2017-11-30 | |||
| JP2018075600A | 2018-05-17 | |||
| JP2020032437A | 2020-03-05 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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