The process flow of galvanized rolled sheet
Upload Time:
2021-11-09
1. Cold rolled steel plates are degreased through alkaline washing, washed with water, dried, and then annealed in a horizontal (vertical) heating furnace heated by a radiation tube. A certain amount of hydrogen gas is introduced into the furnace to reduce the atmosphere in the early stage. 2. Steel strips heated to a certain temperature are immersed in zinc solution under certain conditions for hot-dip galvanizing. 3. The size of zinc flakes is controlled by the composition of liquid zinc, and at the same time, forced cooling is used to control. Before the diffusion of zinc flakes begins, small zinc flake products are quenched using small zinc flake equipment to prevent the zinc liquid from continuing to spread, forming small zinc flakes. 4. After being cooled by hot dip galvanizing, the product undergoes surface finishing, and finally undergoes surface passivation treatment or direct production into color coated rolled sheets according to its purpose.
1. Cold rolled steel plates are degreased through alkaline washing, washed with water, dried, and then annealed in a horizontal (vertical) heating furnace heated by a radiation tube. A certain amount of hydrogen gas is introduced into the furnace to reduce the atmosphere in the early stage.
2. Steel strips heated to a certain temperature are immersed in zinc solution under certain conditions for hot-dip galvanizing.
3. The size of zinc flakes is controlled by the composition of liquid zinc, and at the same time, forced cooling is used to control. Before the diffusion of zinc flakes begins, small zinc flake products are quenched using small zinc flake equipment to prevent the zinc liquid from continuing to spread, forming small zinc flakes.
4. After being cooled by hot dip galvanizing, the product undergoes surface finishing, and finally undergoes surface passivation treatment or direct production into color coated rolled sheets according to its purpose.
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