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A kind of oil release agent for grid casting of lead-acid battery

A lead-acid battery and release agent technology, applied in the direction of electrode carrier/collector, etc., can solve the problems of low viscosity, grid quality, drop rate of oily release agent, etc., to achieve low viscosity, The effect of improving production efficiency and improving fluidity

Active Publication Date: 2019-07-02
QUAKER CHEM CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides an oil-based release agent for grid casting of lead-acid batteries, which has low viscosity and solves the problems of dropping speed and grid quality during the use of the oil-based release agent.

Method used

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  • A kind of oil release agent for grid casting of lead-acid battery
  • A kind of oil release agent for grid casting of lead-acid battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] An oil-based release agent for grid casting of lead-acid batteries. The release agent consists of the following components in terms of mass percentage: rapeseed oil 98.85%, polymethyl methacrylate (viscosity of 1000-1300mm at 100°C 2 / s) 1.1%, organic molybdenum extreme pressure agent (Vanderbilt Company, L) 0.05%. Mix according to the above ratio, stir, heat and cool to form a release agent. The field trial product has good high-temperature spreadability and strong adhesion. After 31 minutes, the dropping speed drops, and manual tapping is required.

Embodiment 2

[0037] An oil-based release agent for grid casting of lead-acid batteries. The release agent is composed of the following components in terms of mass percentage: 98.60% rapeseed oil, polymethyl methacrylate (viscosity at 100°C is 1000-1300mm 2 / s) 1.1%, calcium petroleum sulfonate (total base number 22mgKOH / g) 0.25%, organic molybdenum extreme pressure agent (Vanderbilt Company, L) 0.05%. Mix according to the above ratio, stir, heat and cool to form a release agent. The dripping speed of the field trial product is uniform during the painting process, and the dripping speed drops after 48 minutes. Greatly reduces the frequency of manual knocking, reduces problems such as burrs and mold sticking caused by drop or uneven drop speed, effectively improves production efficiency and product quality, and is suitable for the production of continuous casting lead-calcium alloy grids .

Embodiment 3

[0039] An oily release agent for the casting of lead-acid battery grids, the release agent consists of the following components in terms of mass percentage: trimethylolpropane oleate 98.85%, polymethyl methacrylate (100 °C viscosity 900~1100mm 2 / s) 0.9%, calcium petroleum sulfonate (total base number 72mgKOH / g) 0.15%, organic molybdenum extreme pressure agent (Vanderbilt Company, L) 0.1%. Mix according to the above ratio, stir, heat and cool to form a release agent. The dripping speed of the field trial product is uniform during the painting process, and the dripping speed drops after 51 minutes.

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Abstract

The invention discloses an oily release agent used for lead-acid storage battery plate grid casting. The oily release agent comprises grease and a viscous improving agent. The viscous improving agent refers to polymethyl methacrylate. According to the oily release agent used for lead-acid storage battery plate grid casting, the viscosity is small, and the problem that the dripping speed is decreased in the using process of the oily release agent and thus plate grid quality is lowered is solved.

Description

technical field [0001] The invention relates to the technical field of release agents, in particular to an oily release agent for casting lead-acid battery grids. Background technique [0002] The grid is an important component of the lead-acid battery. Its role is to collect electrons and fix active materials, including supporting the active materials of the positive and negative plates, the conduction of the entire plate, and the mechanical pressure of the product during the cycle of the absorption battery. At present, grid production and processing methods are divided into continuous lead casting and ordinary die casting. Continuous lead casting is different from ordinary lead casting in that continuous casting does not pour high-temperature lead liquid into each grid mold, but continuously Poured into the movable mold (also called crystallizer) that is forced to cool with water, the temperature of the high-temperature liquid lead drops rapidly and condenses with the mova...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/07H01M4/73
CPCB22D11/07H01M4/73Y02E60/10
Inventor 李晓燕赵兴民翟国柱
Owner QUAKER CHEM CHINA
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