Invention Publication
- Patent Title: COMPACTED STEEL STRAND WITH CLADDED CORE
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Application No.: US18267238Application Date: 2021-12-14
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Publication No.: US20240052565A1Publication Date: 2024-02-15
- Inventor: Stefan VITKO , Jozef FILO , Robert SUDY , Lubos SOBOTA
- Applicant: NV Bekaert SA
- Applicant Address: BE Zwevegem
- Assignee: NV Bekaert SA
- Current Assignee: NV Bekaert SA
- Current Assignee Address: BE Zwevegem
- Priority: EP 214792.2 2020.12.17
- International Application: PCT/EP2021/085721 2021.12.14
- Date entered country: 2023-06-14
- Main IPC: D07B1/06
- IPC: D07B1/06 ; D07B5/00 ; B21C23/26

Abstract:
A steel strand (10) comprises a steel core wire (12). This steel core wire (12) is surrounded by steel layer wires (14) that are twisted around the steel core wire (12). The steel core wire (12) is covered with a thick corrosion resistant core coating (16) provided by strip cladding or by metal extrusion. The steel layer wires (14) are covered with a thin corrosion resistant layer coating (18) provided by a hot dip operation or by an electroplating or chemical plating process. The steel strand (10) is compacted so that said steel layer wires (14) have a non-circular cross-section and that the thick corrosion resistant core coating fills the interstices between the steel core wire (12) and the steel layer wires (14) in order to give the steel strand (10) an improved corrosion resistance and increased lifetime.
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