The production process of electrolytic tinplate coil includes: pickling--cold rolling--annealing--flattening---trimming--tinning---oiling
electrolytic tinplate coil Pickling: 1 is for the oxide on the surface of the original board. 2 is for trimming and checking for defective original boards.
electrolytic tinplate sheet Cold rolling: mainly through pressure to make the thickness thinner. This can be done at room temperature.
electrolytic tinplate sheet Annealing: This process is mainly to adjust the corresponding hardness according to the customer's use and requirements. There are two ways: 1) bell furnace annealing 2) continuous annealing. The greater the normal hardness, the more continuous annealing is used
electrolytic tinplate sheet Leveling: There are mainly two aspects: 1) the inspection of the surface condition 2) the leveling of the plate shape
spte tinplate material Trimming: the smallest cut is 5mm, and the normal cut is 7.5mm
spte tinplate material Tinning: Consider the concentration and humidity of tinning environment, etc.
spte tinplate material Oiling: Apply DOS oil under normal conditions. In order to prevent sticking, or rust. But the control of the above oil point is more difficult.
spte tinplate material Composition: From bottom to top, the bottom is the substrate--iron-tin alloy--tin--chromium oxide---oil film
