A lead-acid battery grid formed by one-time stamping and its manufacturing method

Abstract

The invention relates to a one-time-stamping-forming lead-acid battery grid and a manufacturing method thereof. The manufacturing method comprises the steps of putting a grid to be machined between a stamping forming movable die and a stamping forming fixed die of a stamping die; stamping grid holes, transverse ribs and vertical ribs; continuously extruding the transverse ribs and the vertical ribs; controlling the stamping forming movable die to gradually and completely fold with the stamping forming fixed die so that the transverse ribs and the vertical ribs fill up a mold cavity unit formed by the stamping forming movable die and the stamping forming fixed die; after one grid to be machined is formed, transferring for a machining-length distance forwards, and repeatedly performing the steps on a next grid to be machined till all grids to be machined are machined completely. According to the one-time-stamping-forming lead-acid battery grid and the manufacturing method thereof, the grids are machined by a one-time stamping forming method so that the mechanical strength and the hardness of the punched grids are improved, the material consumption is reduced, the machining efficiency is improved, and two punching and extruding processes can be performed at the same time.

Description

technical field [0001] The invention relates to a lead-acid battery grid processing technology, in particular to a lead-acid battery grid formed by one-time stamping and a manufacturing method thereof. Background technique [0002] In recent years, with the continuous improvement of lead-acid battery technology, lead-acid battery has become the most widely used chemical power source. Lead-acid batteries are also the core components of large-scale reserve power supplies such as peak-shaving energy storage power supplies, backup power supplies, and internal combustion engine energy storage power supplies in power systems. played an important role in the development. [0003] At present, although lead-acid batteries are still the mainstream batteries in the battery industry, they also have their own shortcomings, such as a series of problems such as poor corrosion resistance of the plates and grids, and poor cycle life. The manufacturing method of the grid has a direct impact...

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Problems solved by technology

[0004] The existing related processing method is to punch the lead strip after continuous casting and continuous rolling of the lead strip, to make a punched grid with a thickness consistent with the thickness of the lead strip base, and finally to extrude the grid. The two processes of punching and extrusion are carried out separately, which wastes the kinetic energy of the remaining mold in the punching process of the punched grid, and two sets of molds must be prepared and operated in two times. Processing efficiency, on the other hand, increases the manufacturing cost of the grid

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