JPS59166696A - Electroplating cell - Google Patents

Abstract

PURPOSE:To obtain a plating cell capable of easily exchanging an anode, in a plating cell using an insoluble anode of a unitary body type, by detachably providing a wall unit in which said anode is incorporated at the opened part of a cell wall. CONSTITUTION:A steel strip 8 is continuously carried through a shaft plating cell 3 filled with a plating solution 4 by a conductor roll 1 and a sinking roller 2. Hereon, an anode 5 equipped with a bus bar terminal 6 as a detachable wall unit 7 is liquid-tightly attached to the opened part of the wall of the cell 3 through a packing. Hence, the attachment or detachament of the anode can be simply performed, and the attaching accuracy of the anode can be remarkably improved. In addition, the surface of the anode can be provided closer to the steel strip as compared with a conventional type, so that the capacity of the cell can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a plating bath using an insoluble integral anode, which allows easy removal of the anode.

Prior Art In a plating tank using an insoluble integrated anode, for example, in the case of a vertical plating tank, the anode is suspended from the top into the tank, as shown in Figure 3. The following is an esophageal test when plating on one side and when plating narrow width materials.
Equipped with a masking device to prevent the coating phenomenon.

Therefore, when replacing the anode, you must first remove the top cover of the plating tank, remove the energizing roll, cut the steel strip, etc., and then remove the anode and remove it, making the replacement work difficult. However, it also has the disadvantage of requiring a long time.

OBJECTS OF THE INVENTION The present invention eliminates the above-mentioned drawbacks and provides a new type of plating bath in which anode replacement is easy.

Structure of the Invention The present invention provides a metal key ψ1 using an insoluble integrated anode with an opening 10 in the area occupied by the anode of the plating tank, and a wall unit incorporating the anode is attached to the opening from the outside. It is a type of menki tank.

According to the present invention, since the anode is incorporated so as to constitute a part of the wall, only the side that contacts the liquid needs to be made insoluble, and the area covered with insoluble metal is halved, resulting in a significant cost reduction. going down. In addition, since the anode is directly exposed to liquid pressure as a removable wall, it is necessary to have a back structure that can withstand deformation sufficiently. Depending on the size, the same side surface may be formed.

According to the present invention, the anode surface can be brought closer to the copper strip than in the conventional type, and can be approached up to 10 to 50 mm. In order to prevent contact between the anode and the copper strip, a perforated plate made of rubber, plastic, etc. can also be used as a contact prevention plate.

The number of anodes on each side in the tank is not limited to one, but two or more can also be used. In this case, openings for mounting removable wall units are provided in the tank wall according to the number of openings.

The hole between the anode and the opening must be sufficiently liquid-tight with a paso kink interposed therebetween. As a method for fixing the wall unit, a port nut method, a method using hydraulic pressure, etc. can be used. Further, the wall unit may be constructed using only the anode, but it may also be constructed in such a manner that the anode and a portion of the outer wall are integrated and bonded. The present invention can be applied not only to vertical tanks but also to horizontal tanks.

Both FIG. 1 and FIG. 2 are examples in which the present invention is applied to a vertical plating tank.

In FIG. 1, a steel strip 8 is continuously moved through a plating tank 3 containing a plating solution 4 by means of an energized roll and a zinc roll 2. Reference numeral 5 denotes an anode provided with a bus bar terminal 6, which is attached to the tank wall as a detachable wall unit 7. In the example shown in FIG. 2, two wall units 7 are installed above and below a plating liquid flow forming nozzle 9.

Effects of the Invention According to the present invention, the accuracy of the anode is greatly improved, and it is not only extremely easy to replace, but also the tank capacity can be reduced, so it has extremely high industrial value. be.

[Brief explanation of the drawing]

FIGS. 1 and 2 are explanatory diagrams showing an embodiment of the present invention, and FIG. 3 is an explanatory diagram showing a conventional plating bath. 1 energizing roll 6 bus bar 1 terminal 27 rolls 7 wall units 3 plating tanks 8 steel strips 4 plating liquid 9 plating liquid flow forming nostle 5 Yogura agent patent attorney Satoshi Sasaki Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] An electroplating tank characterized in that a wall unit incorporating an insoluble anode can be attached to and removed from the outside of the tank through an opening provided in the tank wall.