Apparatus of electrogalvanized plating steel plate and method of manufacturing electrogalvanized plating steel plate using the same

• Main Authors: NAM CHANG HYUN, JEONG YONG SOO, HAN CHEON HA, KANG CHUN KU, LEE KYOUNG HO, HAN SEONG KYUNG, KIM JONG MYEONG, KIM BYOUNG JIN, JUNG SANG GIL
• Format: Patent
• Language: English; Korean
• Published: 03.05.2022
• Subjects: ALLOYS; APPARATUS THEREFOR; CHEMISTRY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The present invention provides an electroplating method of a steel plate for preventing a defect by controlling a flow rate of plating solution. According to one embodiment of the present invention, the electroplating method of the steel plate comprises: a step of primarily plating a steel plate; and a step of secondarily plating the primarily plated steel plate. First temperature of the plating solution in primary plating is in a range of 54-57℃, and second temperature of the plating solution in secondary plating is in a range of 50-60℃. 본 발명은, 도금액 유속을 제어하여 결함 발생을 방지하는 강판의 전기도금방법을 제공한다. 본 발명의 일 실시예에 의하면, 상기 강판의 전기도금방법은, 강판을 1차 도금하는 단계; 및 상기 1차 도금이 수행된 상기 강판을 2차 도금하는 단계;를 포함하고, 상기 1차 도금에서의 도금액의 제1 온도는 54℃ 내지 57℃ 범위이고, 상기 2차 도금에서의 도금액의 제2 온도는 50℃ 내지 60℃ 범위이다.