Wc Tungsten Carbide Ring/ Mill Roll Ring

Tungsten Carbide Rings are a type of tool material composed of tungsten carbide and cobalt, known for their high hardness and excellent wear resistance. These rings are commonly used as work roll rings in pre-finishing, finishing, and reducing sizing mills.

Usage Instructions
1. Choose the appropriate ring that matches your rolling mill requirements.
2. Ensure proper installation according to the instructions. Incorrect fitting between the ring and arbor, or improper spacing, can lead to operational failure. Always check that the rings meet technical specifications and clean them along with the arbor and spacer rings before use. Avoid hitting the rings with hammers or hard objects during assembly.
3. Cooling is essential to reduce thermal corrosion, fatigue, and stress on the roll rings during operation. Optimal cooling conditions include water temperature below 25°C, pressure between 5-6 bar, and a flow rate of 24-30 m³/hr per stand. Water should be directed radially at an angle of 15-30 degrees relative to the rotation direction of the rings. The jet width should be twice the groove width, and the water must be directed directly into the grooves without scattering.

Water Quality Requirements
For YGH series: pH 7.2, medium or weak alkali water.
For YGR series: pH 7.2, weak acid water.
Maximum solid particle content: <15 mg/L.
Even under ideal cooling conditions, fatigue cracks may occur. To prevent crack propagation, re-machine the pass when the crack reaches 0.2mm in depth. Failure to do so could result in sudden roll failure.

Recommended Pass Life
Pre-finishing Rolling Mill Stands: 3500-4000 tons.
Finishing Rolling Mill Stands (1-2): 1800-2500 tons.
Finishing Rolling Mill Stands (3-4): 1800-2500 tons.
Finishing Rolling Mill Stands (5-6): 1500-2000 tons.
Finishing Rolling Mill Stands (7-8): 1500-2000 tons.
Finishing Rolling Mill Stands (9-10): 600-1200 tons.
Reducing Sizing Mill Stands: 600-1200 tons.

Groove Repair Recommendations
To completely remove fatigue cracks, it's important to re-dress the groove sufficiently. Here are some suggested re-dressing depths:
- Roll rings for 9-10 finishing stands: 0.4-0.6 mm.
- Roll rings for 1-8 finishing stands: 0.7-1.2 mm.
- Roll rings for pre-finishing stands: 1.2-2.0 mm.

Recommended Grades for Different Stands







About Us
Tangshan Weilang is a comprehensive enterprise dedicated to the design, production, sales, and service of metallurgical products. Our product range includes various customized mill rolls and roll rings for different types of bar & wire mills, section mills, plate & strip mills, tube mills, and more. We have supplied our products to over 20 countries and regions, including Southeast Asia, Europe, North America, and the Middle East. If you're interested in our products, please send us detailed drawings and technical requirements, and we will provide you with prompt, professional, and competitive quotations.