Forged Steel Work Rolls
Forged steel cold-rolled work rolls are important components of strip cold-rolling mills, and their properties directly affect the shape, surface quality and rolling production efficiency of cold-rolled sheets.
Application: Widely used in various domestic and foreign single-stand and continuous rolling mill units, rolling different products such as automobile sheet, silicon steel, stainless steel, aluminum foil and so on.
Application: Applied to high-precision 6-high and 8-high mills, its performance directly affects the shape of cold-rolled sheets
| Material | hardness | Hardened layer depth | Hardness uniformity |
Backup roller | 2%Cr,3%Cr,5%Cr | 70-88 HSD | 8~50mm | ±1HSD |
Forged Steel backup roller
LMMGROUP support roller maximum diameter 1650mm
Application: Suitable for all kinds of four-high, six-high single-stand or multi-stand continuous rolling mills
Material | hardness | Hardened layer depth | Hardness uniformity | |
Intermediate Roll | 9Cr2Mo，86CrMoV7，CR-3A,CR-5A,CR-3B,CR-5B,CR-3C | 60-80HSD | ≥75mm | ±2HSD |
Forged steel roll technical Process:
Electric arc furnace smelting → LF \ VD refining → ingot casting → annealing → cleaning → electroslag remelting → annealing → forging → post forging heat treatment → rough machining → preliminary heat treatment → semi finishing → dual frequency quenching or differential temperature treatment → cryogenic treatment → tempering → finishing → packaging and delivery.
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