JPS5911184B2 - Namarichikudenchikiyokubannoseizohou - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a lead-acid battery plate that prevents adhesion of excess active material paste.

Conventionally, as shown in FIG. 1, lead-acid battery electrode plates are processed through an active material paste filling process in which the electrode plate grid bodies 1 are continuously filled one by one by a feeder 3 from a stock conveyor 2 in which cast electrode plate grid bodies 1 are stored. After filling the active material paste 5, the electrode plate goes through an acid soaking step 7 in which dilute sulfuric acid 6 is showered from above the electrode plate in order to form a lead sulfate film on the surface of the electrode plate, and is then transferred to a drying step 8, where it is manufactured. ing. However, in the above active material paste filling process, as shown in FIG. At this time, the gaps between each electrode plate 10 are also filled with surplus active material paste 5', and this surplus active material paste 5' remains as shown in FIG. 3 even after the active material paste filling process. It is sent adhering to the edge of the electrode plate 10, and by the shower of dilute sulfuric acid 6 in the acid soaking step 7, it hangs downward as shown in Fig. 4, and once it adheres to the surface of the electrode plate 10, it can no longer be removed. As a result, the electrode plates manufactured through drying process 8 had extreme unevenness on the surface of the electrode plates, resulting in a deterioration in quality and a defective rate of 5%.

The present invention solves the above problems by applying oils and fats, organic solvents, or both to the upper part of the outer lattice of the electrode plate lattice body before the active material paste filling process.
This is a method for manufacturing lead-acid battery plates that can prevent excess active material paste from adhering.

An embodiment of the present invention will be described.

By applying kerosene oil to the upper part of the outer lattice of the electrode plate lattice body 1 stored on the stock conveyor 2 before the active material paste filling step 4, the excess active material paste 5' in the paste filling step 4 is removed from the outer lattice. It can adhere to the belt of the belt-type automatic paste filling machine 9 and fall off without adhering to the upper part.

The effect is especially great in the case of thick plates. In addition to kerosene oil, it is effective to use fats and oils such as heavy oil, and organic solvents such as trichlene.

Further, the amount of these oils and fats and organic solvents used is as small as about 2 liters per 50,000 sides of the electrode grid 1, and does not adversely affect the electrode plate performance.

As mentioned above, the method for manufacturing lead-acid battery plates of the present invention involves applying oils and fats, organic solvents, or both to the upper part of the outer lattice of the electrode plate lattice body before the active material paste filling process. It is possible to prevent the active material paste from adhering and to completely eliminate this kind of defective rate of the electrode plate, which is of great industrial value.

[Brief explanation of the drawing]

Figure 1 is a process diagram showing the conventional manufacturing method for lead-acid battery electrode plates, Figure 2 is an explanatory diagram of the active material paste filling process in Figure 1, and Figures 3 and 4 are where excess active material paste adheres. FIG. 4 is an active material paste filling process.

Claims (1)

[Claims] 1. A method for producing a lead-acid battery plate, which comprises applying an oil or fat, an organic solvent, or both to the upper part of the outer lattice of the plate lattice body before the active material paste filling step.