Cold rolling process flow chart： The cold rolling process is based on the hot rolling coil. Generally speaking, it goes through the hot rolling pickling cold rolling process. Cold rolling is to use hot-rolled steel coil as raw material, after pickling to remove oxide scale, the finished product is hard rolled coil. Due to the cold work hardening caused by continuous cold deformation, the stre...

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Roll Forming Machine Knowledge : Roller material: ASTM1045、40Cr、GCr15、Cr12(D3)、Cr12MoV(D2) Forming machine driving system: chains/sprokets driven、gearbox driven、 universal joint driven Machine structure: wall frame、separate standing frame、cantilever frame、quick exchangeable rack-machine forming frame Un-coiler type: passive(Un-powered)、automatical、manual expanding、hydraulic expanding link-connecti...

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