A manufacturing process for increasing the content of basic lead carbonate on the surface of green plates

Abstract

The invention discloses a manufacturing process for improving the content of basic lead carbonate on the surfaces of unformed plates. The process comprises the following steps: each unformed plate smear is rolled on dilute sulfuric acid through the method in which a rich solution roll is dipped with a barren solution for rolling, so that a lead sulfate layer is formed; through the method in which a rich solution roll is dipped with a barren solution for rolling, the surface of the lead sulfate layer of each unformed plate is rolled on a sodium carbonate solution or a sodium bicarbonate solution, so that a sodium carbonate layer or a sodium bicarbonate layer is formed; after take-up, the unformed plates are hung on a curing rack and spaced at certain intervals, and when the rack is full, the time during which the unformed plates stay outside is controlled; during curing humidity preservation and dehumidification processes for each unformed plate, when water exists, the sodium carbonate layer or the sodium bicarbonate layer reacts with lead oxide and lead sulfate in lead plaster to form a superficial basic lead carbonate layer, so that a meshed tribasic lead sulfate and tetrabasic lead sulfate frame is formed inside each unformed plate. The production process provided by the invention has the advantages that the content of the basic lead carbonate in the dry lead plaster of each unformed plate is improved, so that the strength of each unformed plate is enhanced, the product rejection rate is reduced, and higher product quality and lower cost are achieved.

Description

technical field [0001] The invention relates to the field of lead-acid storage battery production, in particular to a manufacturing process for increasing the content of basic lead carbonate on the surface of raw plates. Background technique [0002] With the implementation of environmental protection access in the lead-acid battery industry, small and medium-sized enterprises that fail to meet the standards have gradually closed down and withdrawn from market competition. In addition to high-quality product quality, fast, thoughtful and advanced customer service, the price of the product is the killer of market competition. In the market economy environment, users and the market need high-quality, cheap and durable high-end products. Cost-effective products. In the process of long-term potential savings for battery manufacturers, the pressure to reduce production costs has increased dramatically. The product material process quota has reached a critical state without impro...

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Problems solved by technology

[0003] The pole plate, the main component of the battery, can be assembled into the battery case through multiple processes in the manufacturing process. The processes related to the strength of the pole plate in the production process mainly include smearing, splitting, grinding, and selection. , wrapping, assembly, etc. If the plate strength is poor, there will be a considerable number of unqualified products in these processes. Even if some plates seem to be within the qualified standard range, there will be a lot of quality when they are assembled into the battery. Therefore, the strength of the green plate internalized into the battery is the key. Increasing the content of basic lead carbonate in the dry lead paste of the green plate is an important way to improve the strength of the green plate

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