forged rolls manufacturing process is：
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.
Double refining + electroslag remelting to ensure good metallurgical quality
Perfect heat treatment and cold treatment technology to ensure the depth and hardness uniformity of hardened layer
Are classified by material as follows:
(1) Forging alloy steel roll;
(2) Forging semi-steel rolls;
(3) Forged semi-high-speed steel rolls;
(4) Forging white cast iron rolls.
