Who knows the process of tinplate production?
1. remove the oxide scales produced during hot rolling;2. the strip side edge trimming;3. coated with rolling oil, play a role in rust and lubrication;4. check and remove all kinds of surface defects which are harmful to the subsequent cold rolling process;
The basic production process of tinplate: pickling cold rolling cut I skim -- > I I I I I of Kaiping tin flat temperingTropical pickling: hot rolled coils must be pickled before cold rolling to produce cold rolling
Cold rolling: the hot rolled strip passes through the pickling process and enters the cold rolling process. The strip is plastically deformed during the work roll, and the thickness is about 2mm.2mm from about 0. In cold rolling, in order to reduce the friction between the strip and the work roll and take away a large amount of heat produced by the plastic deformation, the cold rolling lubricant and coolant should be sprayed onto the strip. A reversible mill with single stand is adopted. In order to keep the shape of the roller effectively, the temperature control of the cooling liquid is more important. Range of production: 0.14mm-0.5mm.Slitting: the required width of slitting material after cold rolling. Range of production: 265mm-835mmSkim: in the cold rolling process in rolling oil cooling after tin plate surface adhesion of oil and other foreign matter, such as do not wash directly by annealing the oil incomplete combustion of carbonaceous residue will stain in the strip, for the production of tinplate can meet the quality requirements. Therefore, the tin plate must be cleaned by electrolysis before removing the grease. The common method of cleaning tin plate is to degrease and degrease the degreasing liquid.
