PRETREATMENT FOR ELECTROPLATING IN CONTINUOUS ELECTROPLATING LINE

PURPOSE:To reduce equipment costs and units and to improve the yield and quality of plated products by subjecting a material to be plated to dry skin pass rolling with skin pass mills as inline then to mechanical cleaning. CONSTITUTION:A material A to be plated which is not subjected to skin pass rolling in the foundation producing stage is subjected to dry skin pass rolling with a skin pass mill 2 after a pay-off reel 1. After the material is leveled with a tension leveler 3, the material receives mechanical cleaning by brush rolls 4 for polishing and the surfaces to be treated are wetted and activated with the plating soln. by a wetting tray 5. After the material is subjected to electroplating 6, polishing 7 and chemical conversion 8, the treated material is taken up on a tension reel 9. In the above-mentioned method, the material is dry tempered in the electroplating line, whereby mechanical cleaning is made possible and the need for wet pretreatment stages is eliminated.