Electroplating process of nickel-plated steel strip for battery
An electroplating process, nickel-plated steel technology, applied in the electroplating process field of nickel-plated steel strips for batteries, can solve the problems of increased process loss of steel strips, poor bonding between the electroplating layer and the substrate, and reduced current efficiency, so as to improve product quality. The effect of pass rate, optimization of washing steps, and reduction of winding times
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Embodiment 1
[0012] An electroplating process for a nickel-plated steel strip for batteries. The nickel-plated steel strip for batteries is obtained by unwinding the base strip—pickling—electroplating—water washing—rewinding. The pickling step is specifically: unwinding the base strip Put it in the pickling solution for 0.5min at a traveling speed of 5m / min. The pickling solution includes hydrochloric acid, sulfuric acid and water. The mass concentration of chloride ions in the pickling solution is controlled at 4.6g / L. The pH of the pickling solution The value is controlled at 0.5; the electroplating steps are as follows: the pickled substrate is placed in the electroplating solution for electroplating for 3 minutes, the temperature of the electroplating solution is controlled at 65°C, and the electroplating current density is controlled at 5.0A / dm 2 .
[0013] Put the nickel-plated steel strip for batteries prepared in Example 1 into a muffle furnace at 860° C. for heating for 10 minutes...
Embodiment 2
[0016] A kind of manufacture process of nickel-plated steel strip for battery, its step is basically the same as the step of the manufacture process of the nickel-plated steel strip for battery in embodiment 1, and its difference is:
[0017] 1. The traveling speed of the baseband is controlled at 1m / min; the etching time of the baseband in the pickling solution is controlled at 1min, the mass concentration of chloride ions in the pickling solution is controlled at 5.0g / L, and the pH value of the pickling solution is controlled at 1.0 ;
[0018] 2. The electroplating time is controlled to be 5min, the temperature of the electroplating solution is controlled to be 62°C, and the electroplating current density is controlled to be 4.5A / dm 2 .
[0019] Put the nickel-plated steel strip for batteries prepared in Example 2 into a muffle furnace at 860° C. for heating for 10 minutes, then observe the shedding of the coating. After observation, the coating did not fall off, indicating...
Embodiment 3
[0021] A kind of manufacture process of nickel-plated steel strip for battery, its step is basically the same as the step of the manufacture process of the nickel-plated steel strip for battery in embodiment 1, and its difference is:
[0022] 1. The traveling speed of the baseband is controlled to be 10m / min; the etching time of the baseband in the pickling solution is controlled to be 0.7min, the mass concentration of chloride ions in the pickling solution is controlled to be 4.2g / L, and the pH value of the pickling solution is controlled to be 0.1;
[0023] 2. The electroplating time is controlled at 1.5min, the temperature of the electroplating solution is controlled at 67°C, and the electroplating current density is controlled at 5.5A / dm 2 .
[0024] Put the nickel-plated steel strip for batteries prepared in Example 3 into a muffle furnace at 860° C. for heating for 10 minutes, then observe the shedding of the coating. After observation, the coating did not fall off, ind...
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