CN101728540A - Quick age-hardening method for grid of lead-acid accumulator - Google Patents
Quick age-hardening method for grid of lead-acid accumulator Download PDFInfo
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- CN101728540A CN101728540A CN200910212477A CN200910212477A CN101728540A CN 101728540 A CN101728540 A CN 101728540A CN 200910212477 A CN200910212477 A CN 200910212477A CN 200910212477 A CN200910212477 A CN 200910212477A CN 101728540 A CN101728540 A CN 101728540A
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- acid accumulator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a quick age-hardening method for a grid of a lead-acid accumulator. The method comprises the following steps: putting the grid into a preheated closed drying room; heating the drying room to between 60 and 75 DEG C in 20 to 30 minutes, and controlling the humidity of the room to between 0 and 5 percent; stopping heating after the grid is heated for 8 to 12 hours; and naturally cooling the grid to room temperature, and taking the grid out. The method reasonably selects temperature, humidity and treatment time, not only greatly shortens the treatment time, improves the production efficiency, but also ensures that the corrosion resistance and interface conductivity of the grid is effectively improved, and is obviously progressed compared with the conventional natural ageing treatment method.
Description
Technical field
The present invention relates to a kind of quick age-hardening method for grid of lead-acid accumulator, belong to lead acid accumulator plate grid and make the field.
Background technology
Grid is the key element of lead acid accumulator, and it has decisive influence to the performance of battery.In order to realize lead acid accumulator sealing and reduced-maintenance requirement, its grid requires corrosion-resistant.In order to improve the electric conductivity of grid, usually in positive grid alloy, add 1～1.5% metallic tin, but after Sn content in alloys surpassed 0.8%, grid was very soft, can't satisfy technological requirement.At present the grid age-hardening is handled and be generally natrual ageing, not to temperature, humidity choose reasonable and control, not only production efficiency is low, processing time generally reaches 7～15 days, and the grid alloy porosity after the sclerosis is many, oxidation easily takes place in the surface under the effect of water in air steam, Ying Hua grid is not corrosion-resistant like this, makes lead-acid battery be prone to premature capacity loss and grid corrodes the faults such as end-of-life that cause in advance.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, a kind of quick age-hardening method for grid of lead-acid accumulator that can enhance productivity, improve grid corrosion resistance and interfacial conductive is provided.
Technical scheme of the present invention is: quick age-hardening method for grid of lead-acid accumulator is that grid is put into the close drying room, in 20～30 minutes, the drying shed temperature is risen to 60～75 ℃, humidity is controlled at 0～5%, with this understanding, to grid heat treatment 8～12 hours, stop heating, naturally cool to room temperature, grid is taken out.
Before grid is put into drying shed, be preheating to 50～60 ℃ in the drying shed earlier.
Show through test of many times: when temperature during less than 60 ℃, timeliness after 12 hours grid intensity can not reach the production demand; When temperature during greater than 75 ℃, cracking embrittlement phenomenon appears in grid easily behind natural cooling; When humidity greater than 5% the time, the grid surface is oxidation fast under the hygrothermal environment of steam catalysis, the serious corrosion problem of turning blue occurred.The present invention utilizes metal alloy composition to reconfigure crystallization speed and temperature positive correlation principle, thereby has shortened the time of age-hardening, and makes compact crystallization.In order effectively to suppress grid cracking and the influence of hot environment to the grid corrosion rate, by test, the present invention has determined said temperature, damp condition.
Adopt above technical scheme, the grid after the processing is than the degree of crystallinity height of the grid of normal temperature sclerosis, and crystallite dimension is little, arranges densification, is evenly distributed, and the pore on grid surface also obviously reduces; Grid corrosion layer area after the processing reduces, and corrosion weight loss reduces, and the alloy interface layer impedance also obviously reduces, and the decay resistance of grid in sulfuric acid is improved, and the conductivity of grid and lead plaster combination interface improves; And shortened the age-hardening time of grid greatly, improved production efficiency.
Description of drawings
Fig. 1 is crystallization figure under the mirror of gate plate ear position after the room temperature ageing * 200 times;
Fig. 2 handles crystallization figure under the mirror of back gate plate ear position * 200 times for the present invention;
Fig. 3 is crystallization figure under the mirror of gate plate ear position after the room temperature ageing * 10000 times;
Fig. 4 handles crystallization figure under the mirror of back gate plate ear position * 10000 times for the present invention;
Fig. 5 is crystallization figure under the mirror of grid rib position after the room temperature ageing * 200 times;
Fig. 6 handles crystallization figure under the mirror of grid rib position, back * 200 times for the present invention;
Fig. 7 is crystallization figure under the mirror of grid rib position after the room temperature ageing * 10000 times;
Fig. 8 handles crystallization figure under the mirror of grid rib position, back * 10000 times for the present invention.
Embodiment
Further specify processing method of the present invention and contrast effect below by embodiment.
Example one: choose with 2000 of the grids of a collection of cast, wherein put into the close drying room that is preheated to 55 ℃ for 1000, through 25 minutes temperature rise to 60～65 ℃, controlled humidity≤5%, grid was heat-treated 12 hours, take out after being chilled to room temperature naturally then.Room temperature ageing sclerosis 15 days is carried out in other 1000 grounds on the scene.Randomly draw a slice grid the grid after handling respectively, * 200 times and * 10000 times of electron microscope scannings are carried out in the lug position, form Fig. 1～Fig. 4 through above method.Therefrom as can be seen, the grid of handling through the present invention is than the grid degree of crystallinity height of room temperature ageing sclerosis, and crystallite dimension is also little, and also much less of surface pores.
Example two: choose with 1000 of the grids of a collection of cast, wherein put into the close drying room that is preheated to 60 ℃ for 500, through 30 minutes temperature rise to 65～70 ℃, controlled humidity≤5% was heat-treated 10 hours grid, took out after being chilled to room temperature naturally then.Room temperature ageing sclerosis 10 days is carried out in other 500 grounds on the scene.Randomly draw a slice grid the grid after handling respectively, * 200 times and * 10000 times of electron microscope scannings are carried out in the rib position, form Fig. 5～Fig. 8 through above method.Therefrom as can be seen, the grid of handling through the present invention is than the grid degree of crystallinity height of room temperature ageing sclerosis, and crystallite dimension is also little, and also much less of surface pores.
Claims (2)
1. quick age-hardening method for grid of lead-acid accumulator, it is characterized in that grid is put into the close drying room, in 20～30 minutes, the drying shed temperature is risen to 60～75 ℃, humidity is controlled at 0～5%, with this understanding, to grid heat treatment 8～12 hours, stop heating, naturally cool to room temperature, grid is taken out.
2. by the described quick age-hardening method for grid of lead-acid accumulator of claim 1, it is characterized in that before grid is put into drying shed, be preheating to 50～60 ℃ in the drying shed earlier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910212477A CN101728540A (en) | 2009-11-09 | 2009-11-09 | Quick age-hardening method for grid of lead-acid accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910212477A CN101728540A (en) | 2009-11-09 | 2009-11-09 | Quick age-hardening method for grid of lead-acid accumulator |
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| CN101728540A true CN101728540A (en) | 2010-06-09 |
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| CN200910212477A Pending CN101728540A (en) | 2009-11-09 | 2009-11-09 | Quick age-hardening method for grid of lead-acid accumulator |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148370A (en) * | 2011-02-28 | 2011-08-10 | 河南超威电源有限公司 | Quick aging hardening cabinet and technique for storage battery grids |
| CN102324500A (en) * | 2011-07-28 | 2012-01-18 | 天能电池集团有限公司 | Heat treatment process of storage battery grid |
| CN102747312A (en) * | 2012-07-04 | 2012-10-24 | 江苏理士电池有限公司 | Hardening method for grids of lead acid battery |
| CN103243284A (en) * | 2013-04-07 | 2013-08-14 | 天能电池(芜湖)有限公司 | High-temperature age hardening technique for lead-calcium alloy plate grid |
| CN103956501A (en) * | 2014-04-18 | 2014-07-30 | 天能电池(芜湖)有限公司 | High-temperature age-hardening treatment method of grids |
| CN104505519A (en) * | 2014-12-10 | 2015-04-08 | 天能电池集团有限公司 | Age hardening process before grid plate coating of lead-acid storage battery |
| CN108149175A (en) * | 2017-11-29 | 2018-06-12 | 风帆有限责任公司 | A kind of aging treatment method for AGM battery grids |
| CN111129438A (en) * | 2019-12-12 | 2020-05-08 | 双登集团股份有限公司 | Preparation method of polar plate for improving binding force between positive plate grid and lead paste |
-
2009
- 2009-11-09 CN CN200910212477A patent/CN101728540A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148370A (en) * | 2011-02-28 | 2011-08-10 | 河南超威电源有限公司 | Quick aging hardening cabinet and technique for storage battery grids |
| CN102148370B (en) * | 2011-02-28 | 2015-09-16 | 河南超威电源有限公司 | A kind of battery grid quick age-hardening case and technique |
| CN102324500A (en) * | 2011-07-28 | 2012-01-18 | 天能电池集团有限公司 | Heat treatment process of storage battery grid |
| CN102747312A (en) * | 2012-07-04 | 2012-10-24 | 江苏理士电池有限公司 | Hardening method for grids of lead acid battery |
| CN103243284A (en) * | 2013-04-07 | 2013-08-14 | 天能电池(芜湖)有限公司 | High-temperature age hardening technique for lead-calcium alloy plate grid |
| CN103956501A (en) * | 2014-04-18 | 2014-07-30 | 天能电池(芜湖)有限公司 | High-temperature age-hardening treatment method of grids |
| CN103956501B (en) * | 2014-04-18 | 2016-08-24 | 天能电池(芜湖)有限公司 | A kind of high temperature grid actual effect hardening process |
| CN104505519A (en) * | 2014-12-10 | 2015-04-08 | 天能电池集团有限公司 | Age hardening process before grid plate coating of lead-acid storage battery |
| CN108149175A (en) * | 2017-11-29 | 2018-06-12 | 风帆有限责任公司 | A kind of aging treatment method for AGM battery grids |
| CN108149175B (en) * | 2017-11-29 | 2019-08-06 | 风帆有限责任公司 | A kind of aging treatment method for AGM battery grid |
| CN111129438A (en) * | 2019-12-12 | 2020-05-08 | 双登集团股份有限公司 | Preparation method of polar plate for improving binding force between positive plate grid and lead paste |
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Open date: 20100609 |