Storage battery grid mold release agent and preparation method thereof

Abstract

The invention belongs to the field of storage battery manufacturing technology, and particularly relates to a storage battery grid mold release agent and a preparation method thereof. The storage battery grid mold release agent is prepared from the following raw materials in parts by weight: 0.3-0.7 part of bone glue, 0.4-0.8 part of polyethylene, 0.4-0.8 part of kieselguhr, 0.2-0.5 part of glass water, 0.3-0.7 part of aluminum dihydrogen phosphate, 2-4 parts of cork powder of 200-300 meshes, 2-4 parts of cork powder of 700-800 meshes, and 88.5-94.4 parts of water. The storage battery grid mold release agent is easy to bond, high-temperature-resistant and smooth to exhaust; the prepared grid has fewer pores, thus being easily formed in casting.

Description

technical field [0001] The invention belongs to the technical field of battery manufacturing, and in particular relates to a lead-acid battery grid release agent and a preparation method thereof. Background technique [0002] Gravity casting of lead-acid batteries is the main manufacturing method of grids. The related technologies are described below: [0003] Description of grid structure (see figure 1 ): A-1 is the plate lug of the grid, one upper and lower plate lug, one of which needs to be sawed off after the grid coating is cured and dried, and one is left to be welded to the bus bar, so the plate lug to be sawed is the process The needs of the manufacturing process are called process lugs; A-2 is the frame of the grid; A-3 is the inner rib, which is the horizontal and vertical ribs of the inner frame of the grid. [0004] Instructions for grid casting slab molds (see figure 2 ): The lugs, frames, and ribs of the grid are grooved on two flat plates. The grooves on ...

AI Technical Summary

Problems solved by technology

[0006] At present, the use of conventional release agents to spray-cast grids has the following disadvantages: (1) Due to poor exhaust, the temperature of lead liquid must reach 530°C to flow into the casting normally; (2) Due to poor exhaust, the grid forming rate Low, with many pores, the pass rate is about 85%; (3) Since the temperature of the lead liquid needs to reach 530°C, the lead alloy burns seriously, and the waste product lead slag reaches 2%; (4) Due to the high temperature of the lead liquid, the The electric heating tube consumes a lot of power; (5) Due to the high temperature of the lead liquid, the release agent on the mold surface will be burned quickly, so the release agent must be sprayed continuously, usually every 2 hours; (6) Conventional release agent The heat dissipation is slow, and the lead liquid must have enough cooling and solidification time to open the mold, generally 13 to 15 pieces per minute, so the production efficiency is low; (7) Since the mold is continuously opened and merged under the push of the cylinder, the mold is under greater pressure Large, conventional release agents will lose their venting properties without rolling

Images