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HRP Wire Rods Line 05
Production Process of Stainless Steel Hot-Rolled Wire Rod (Coils)
1.Raw Material Preparation
•Scrap steel, stainless steel alloys, and alloying elements are melted to produce molten steel.
•The steel is cast into billets (continuous casting billets or slabs).
2.Heating
•The billets are heated in a reheating furnace to the hot rolling temperature.
3.Roughing / Intermediate Rolling / Finishing Rolling
•The billets are rolled through multiple passes, gradually reduced to the required wire rod dimensions.
•Controlled rolling and cooling ensure the desired microstructure and mechanical properties.
4.Initial Shaping
•The material is processed into wire rod or bar shape, suitable for coiling.
5.Pickling / Descaling
•Oxide scale is removed using pickling (often continuous tunnel-type pickling lines are adopted in China, applicable for wire rods of 5–40 mm diameter).
6.Intermediate Annealing (if required)
•Annealing may be carried out to restore ductility and adjust microstructure.
7.Cooling, Neutralizing and Rinsing
•After pickling, the material is neutralized, rinsed, and dried.
8.Coiling
•The hot-rolled wire rods are wound into coils for delivery.
9.Surface Treatment / Finishing
•Additional treatments such as surface polishing, cleaning, or straightening may be applied.
10.Inspection and Packing
•Final inspection of dimensions, mechanical properties, and surface condition.
•Packing, bundling, and delivery to warehouse or customer.
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