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Grid alloy and its preparing method

A manufacturing method and alloy technology, which is applied in the battery field and can solve problems such as manufacturing difficulties

Active Publication Date: 2005-12-21
风帆(扬州)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they have not been applied due to manufacturing difficulties or other process problems or cost reasons

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1：          Embodiment 2：             Embodiment 3

[0030] Calcium 0.02 0.2 0.1

[0031] Aluminum 0.03 0.05 0.01

[0032] Tin 0.1 1.2 2

[0033] Silver 0.05 0.025 0.001

[0034] Lead balance Balance balance

[0035] Alloy preparation process: first add 70% of the formula amount of lead to the alloy pot, then heat up to 680°C, remove the scum and add the formula amount of silver and aluminum, stir for 10 minutes, and then put the metal calcium into the pot with holes Place in the bottom of the lead liquid in a small container and stir continuously until no bubbles emerge from the liquid surface. Take out the container, add the remaining lead and start stirring. After stirring for 5 minutes, add the tin in the formula, and stir for another 10 minutes. Take samples for testing, and cast after passing the test. into alloy ingots of specified size.

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Abstract

The invention discloses a battery grate alloy which relates to battery technique field for improving its rigidity, anti-creeping and eroding resistance. The ratio of its component (weight) are as follow: calcium 0.02 to 0.2, aluminum 0.01 to 0.05, tin 0.1 to 2, silver 0.001 to 0.05, lead takes the rest. Plate-grid produced according the ratio is of greatly higher performance compared with common lead Di alloy or lead calcium alloy. Battery built with the plate-grid totally meets the VW7573 standard. The plate-grid is of complete shape without large deformation in evidence and high rigidity. Moreover the processing properties of the alloy is ideal and the cost is moderate, very adaptive in industrial production generalize.

Description

technical field [0001] The invention relates to a material and a preparation method for manufacturing storage battery grids, belonging to the technical field of storage batteries. Background technique [0002] The grid is the most critical inactive component of a lead-acid battery. It has two major functions in the battery, one is to support positive and negative active materials, and the other is to act as a current collector during discharge and charge, which requires that the alloy used to make the grid must have excellent performance. For many years, lead-antimony alloy has been used as a battery grid alloy, which has high mechanical strength and excellent casting properties. With the emergence of maintenance-free car batteries and valve-regulated lead-acid batteries, lead-calcium alloys have begun to be used as grid alloys due to their good performance in corrosion resistance and high hydrogen evolution overpotential, and their proportion is increasing. The mechanical...

Claims

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Application Information

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IPC IPC(8): C22C11/00
CPCY02E60/10
Inventor 李海英曹贵发魏立平邓全忠张惠明
Owner 风帆(扬州)有限责任公司
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