Steel ingots are forged into rolling mill rolls.
Forging can fuse together metallurgical defects such as porosity and shrinkage cavities within the steel ingot,
and break down coarse casting structures to obtain high-quality rolls with a dense structure and uniform composition.
Forged steel rolls have better strength, toughness, surface hardness uniformity, and fatigue resistance than similar cast rolls.
To meet the specific requirements of different rolling mills and rolling conditions, different alloying elements can be added to the steel used for rolling mills to improve their performance.
DTL produces forged steel flanges and various pressure vessel forgings in various materials (carbon steel, alloy steel, low-temperature steel, stainless steel, etc.).
The free forgings we produce are mainly shaft parts, including various main shafts, drive shafts, gear shafts, marine shafts, motor shafts, flange shafts, support rollers, work rollers, conveyor rollers,
various hydraulic press columns, etc. We also produce various ring parts, disc parts, and hot forging modules.
The production process is as follows: "high-power electric furnace + ladle refining (LF) + vacuum degassing (VD) + electroslag remelting + fast forging + annealing (or normalizing) + heat treatment (quenching + tempering) + machining + packaging + shipping"
