JIS G3125 SPA-H Weathering steel production process

JIS G3125 SPA-H Weathering steel production process is: the iron pretreatment - 120 - tavoidances the combined-blowing converter for smelting - JIS G3125 SPA-H Weathering steel LF refining a slab continuous casting (160 mm x (1055 ~ 1360) mm) is a hot hot charging a heating high pressure water descaling - (E1, four roller R1) reversing roughing 5 times one hot coil box is a flying shear head to tail high pressure water descaling - before a E2 (E2) F1 ~ F6) finishing mill group a laminar cooling a coiling a baling piled up a transport a spray, a collection of JIS G3125 SPA-H Weathering steel.

The molten iron of JIS G3125 SPA-H Weathering steel must be pretreated with desulphurization of molten iron.Clean the slag on the surface of molten iron.Nickel plate, copper grain or nickel copper alloy are added to the converter with scrap.The temperature of JIS G3125 SPA-H Weathering steel is controlled at 1640~1660 ℃. Before the steel is produced, synthetic slag is added into the ladle for baking.