Factors Influencing Edge Dendritic Plating of Steel Sheet in the Electro-Galvanizing Line
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Recently, the demand for Zn-Ni electrogalvanized steel sheets for home appliances and automobiles isincreasing. Products should have a thick plating (30 to 40 g/m2) on both side with a thin thickness (≤ 0.8 mm) andthe highest surface quality. By a high current density operation, current is concentrated in the edge part ofthe steel sheet, resulting in large surface dent defects due to dendritic plating. This can lead to a low pro-ductivity due to low line speed operation. To solve this problem, this study aimed to identify factors influ-encing dendritic plating. A cylindrical electroplating device was manufactured. Effects of cut edge shapeand thickness of steel plate, current density, temperature, flow rate, electrolyte concentration, and pH ondendrite generation of Zn-Ni electroplating were examined. To investigate effect of edge shape of the steelsheet, the steel sheet was manufactured using three processing methods: shearing, polishing after shearing,and laser. Relative effects thickness and cut edge processing methods of the steel plate, current density,temperature, flow rate, electrolyte concentration, and pH of plating solution on dendrite plating were inves-tigated. To prevent dendrite plating, an edge mask was manufactured and its application effect was inves-tigated.
Abstract
Recently, the demand for Zn-Ni electrogalvanized steel sheets for home appliances and automobiles isincreasing. Products should have a thick plating (30 to 40 g/m2) on both side with a thin thickness (≤ 0.8 mm) andthe highest surface quality. By a high current density operation, current is concentrated in the edge part ofthe steel sheet, resulting in large surface dent defects due to dendritic plating. This can lead to a low pro-ductivity due to low line speed operation. To solve this problem, this study aimed to identify factors influ-encing dendritic plating. A cylindrical electroplating device was manufactured. Effects of cut edge shapeand thickness of steel plate, current density, temperature, flow rate, electrolyte concentration, and pH ondendrite generation of Zn-Ni electroplating were examined. To investigate effect of edge shape of the steelsheet, the steel sheet was manufactured using three processing methods: shearing, polishing after shearing,and laser. Relative effects thickness and cut edge processing methods of the steel plate, current density,temperature, flow rate, electrolyte concentration, and pH of plating solution on dendrite plating were inves-tigated. To prevent dendrite plating, an edge mask was manufactured and its application effect was inves-tigated.
참고문헌 (5)
- Y. Zuo, "Zinc Dendrite Growth and Inhibition Strategies", Materials Today Energy, 20, pp.100692~ (2021)[DOI]
- K. I. Popov, "Morphology of Electrochemically and Chemically Deposited Metals - Mechanisms of Formation of Some Forms of Electrodeposited Pure Metals", pp.25~109 (2016), Springer
- S. J. Banik II, "Suppressing Dendritic Growth during Zinc Electrodeposition Using Polyethyleneimine as an Electrolyte Additive for Rechargeable Zinc Batteries", Ph.D, pp.2016
- A. R. Despić, "Mechanism of formation of zinc dendrites", Journal of The Electrochemical Society, 115, pp.507~ (1968)[DOI]
- K. Sakai, "Development of High-Efficiency Electrolytic Process", Transactions of the Iron and Steel Institute of Japan, 26, pp.198~ (1986)[DOI]