Precision Rolls
Keramik Walze-Keramik Zwei-Walzen-Keramik Drei-Walzen

1. Product Overview
Tungsten carbide rolls are critical tools used to induce plastic deformation in metals (rolled products). They are essential consumable components that significantly influence mill efficiency and the quality of rolled materials. As core parts of steel rolling mills, these rolls apply pressure through a pair or set of rotating rolls to shape steel. During operation, they endure dynamic and static loads, wear, and thermal fluctuations.

Tungsten carbide rolls consist of tungsten carbide particles bonded with a metallic binder, offering exceptional hardness and outstanding wear resistance.

2. Performance and Quality Evaluation Criteria
Roll performance and quality depend on:

• Chemical composition and manufacturing process
• Microstructure
• Physical and mechanical properties
• Type of internal residual stresses

Their actual performance in rolling mills is also influenced by:

• Mill conditions: e.g., mill type, roll/pass design, cooling system, bearing type
• Rolling conditions: e.g., material type and dimensions, deformation resistance, reduction schedule, temperature regime, production targets, and operational practices
• Product quality requirements: particularly stringent demands for surface finish

3. Product Types and Applications

1) Photovoltaic Ribbon-Specific Precision Rolls
Application: Specifically designed for photovoltaic (PV) ribbon and FFC wire production.
Features:

• High precision: runout and roundness ≤ 0.001 mm
• High hardness with surface roughness as fine as Ra 0.01
• Easy maintenance and service life over 50 times longer than SKD11 tool steel

Xiayang Precision Rolls have long been integrated into high-end equipment from Japan and Korea, as well as top-tier domestic rolling systems, enjoying high market share and strong trust from both OEMs and end-users.

2) Ceramic Rolls
Material Advantages: Made from high-performance ceramics such as zirconia, offering:

• Exceptional hardness and wear resistance
• Non-magnetic and non-conductive properties
• Superior surface gloss with roughness down to Ra 0.05
• Runout and roundness accuracy up to 0.001 mm

Eco-friendly Attributes:

• Environmentally safe—suitable for medical and food industries
• Energy-efficient: reduces energy consumption by over 30% in metal forming processes
• High-temperature stability: can operate continuously in oxidizing atmospheres above 1000°C with excellent chemical stability, corrosion resistance, oxidation resistance, thermal shock resistance, and zero contamination
• Material toughness: zirconia is among the toughest materials in the family of advanced technical ceramics

4. Core Performance Requirements for Tungsten Carbide Rolls

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5. Product Series (Application Areas)
Xiayang offers a wide range of specialized precision rolls for diverse industrial applications:

• Photovoltaic ribbon-specific rolls
• Sheet and mesh material rolls
• Jewelry manufacturing rolls
• Metal tube forming rolls
• Eyewear frame forming rolls
• Welded tube rolls
• FFC (Flexible Flat Cable) specific rolls
• Enameled wire (magnet wire) rolls

Note: “Tungsten carbide rolls” are also known as cemented carbide rolls.