Cold Rolled Mill Work Rolls

Extensive range

This market segment covers forged Work Rolls and Intermediate Rolls for use in Wide Cold Strip Mills of 2-high, 4-high, or 6-high types, including reversing Reduction Mills, Tandem Mills, Double Reduction Mills, and Temper/Skin Pass Mills.

Our Rolls can be supplied in a number of grades to suit various applications, materials, and rolling conditions. Both electric steel and ESR quality rolls are available. We also supply Cold Mill Work Rolls in cast grades of High Chrome Iron type.

Manufacturing

Forged rolls are manufactured at our plants in the China. We also provide customers with re-hardening and re-cutting service and support.

With FUSHUN extensive knowledge and experience of manufacturing forged work rolls, we can assist clients in selecting the grades and parameters that will assure optimal performance in their mill operations.

Process

Product design → Smelting (EF + ESR) → Forging → (Normalizing) → Spheroidizing and hydrogen annealing → Rough turning of the roll surface (cut test block) → Inspection (UT, macroscopic, microscopic, dimensions, appearance) → Storage and material requisition → Rough machining → Ultrasonic testing → Quenching and tempering treatment → Hardness inspection → Semi-finish machining → Roll neck surface and thrust end surface quenching and tempering → Roll neck hardness inspection → Semi-finish machining → Ultrasonic testing → Roll body surface quenching (+ cold treatment + low-temperature tempering) → Roll body hardness inspection → Finish machining → Inspection → Storage → Rust prevention and packaging → Transportation

Advantages

• ESR steel ingots have high purity.
• Heat treatment is good, and hardness is uniform.
• Machining dimensions are precise.
• No burn issues caused by grinding.

List of Grades

The following table gives a general overview of our main grades in this product segment. Further information about each grade is available in our Product Data Sheets.

Roll Grade

*P, S, ≤0.025 ； Ni, Cu ≤0.25