Roller comprising a wear protection layer which is applied at least in some areas
A tungsten carbide coating on HSS or semi-HSS rollers addresses wear and cracking issues, enhancing service life and productivity by distributing impact loads and improving lubrication, thus overcoming conventional limitations.
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- THYSSENKRUPP STEEL EUROPE AG PATENTE PATENT DEPARTMENT
- Filing Date
- 2024-12-12
- Publication Date
- 2026-06-17
AI Technical Summary
Conventional rollers, particularly those made of high-speed steel (HSS) or semi-HSS, suffer from high wear and cracking due to mechanical and thermal stresses during rolling processes, especially in cold rolling, leading to reduced service life and potential core failure.
Applying a wear-resistant layer composed of tungsten carbide (WC) or WC-Co alloy through thermal spraying, partially or fully covering the roller's surface, enhances both wear and crack resistance, particularly when combined with HSS or semi-HSS steel.
The combination of WC or WC-Co coating with HSS or semi-HSS steel significantly extends the roller's service life, reduces cracking, and maintains process productivity by evenly distributing impact loads, while also improving lubrication and reducing contamination.
Smart Images
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