To perform surface treatments on various metal roll plates and wire materials, including acid cleaning, degreasing, electrotinning, electrogalvanizing, phosphatization, oxidation, hot-dip galvanizing, anti-finger print, color-painting, and film coating.
Metal roll materials are painted and then coated with a decoration film
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(electrogalvanizing steel plate)
Compared with GI and GA, this steel plate is less galvanized and not affected by heat generated during the manufacturing process, and ensures the same material characteristics and processing performance as the original material -CR.
|The sacrificial anode effects caused by the galvanic action of Zn may protect Fe (ZnZn-2+2e-,2H+,+2e-->H2), and the newly formed alkaline carbonate film due to being exposed in the open air is also anti-corrosive.
|The steel plate has a smooth surface and thus ensures a desirable coating effect. Moreover, after the phosphate treatment, the coating effect of the paints and the corrosion resistance after coating are both improved.
|The galvanized steel plate has a large contact area upon being pressed. Compared with CR, this steel plate has poorer electric conductivity and weldability. However, desired stop welding and seam welding can be carried out as long as appropriate welding conditions are maintained and a post-treatment is performed.
|Zn-Fe(Zn-Fe-alloy plated steel plate)
|Compared with Pure Zn, the content of Fe in the plating layer achieves more desirable weldability, desirable paint adhesion feature, and satisfactory corrosion resistance after coating.
|Zn-Ni(Zn-Ni-alloy plated steel plate)
|This steel plate mainly aims at prolonging the automobile anti-corrosion (anti-pitting corrosion) duration caused by the salt (NaClCaCl2) for preventing the road from being frozen. Compared with other plated steel plates, the Zn-Ni-alloy plated steel plate has a firm plating layer and has a high melting point due to the added Ni. Therefore, compared with Pure Zn, this steel plate is firmly plated and not easily softened or melted. Meanwhile, the steel plate is capable of being welded due to its low current, and has desirable uncoated corrosion resistance, which can resist corrosion for a long time.