CN103219497A - Enclosed-formed pole plate pressurizing and curing process - Google Patents
Enclosed-formed pole plate pressurizing and curing process Download PDFInfo
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- CN103219497A CN103219497A CN2013100369469A CN201310036946A CN103219497A CN 103219497 A CN103219497 A CN 103219497A CN 2013100369469 A CN2013100369469 A CN 2013100369469A CN 201310036946 A CN201310036946 A CN 201310036946A CN 103219497 A CN103219497 A CN 103219497A
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Abstract
The invention discloses an enclosed-formed pole plate pressurizing and curing process comprising the steps of: (1) a curing first stage with a temperature of 40-45 DEG C, a humidity of 99%, a time of 24h, an air pressure of 0MPa, and a pole plate water content no lower than 10%; (2) a curing second stage with a temperature of 50-55 DEG C, a humidity of 98%, a time of 16h, an air pressure of 0.3MPa, and a pole plate water content of 9%; (3) a curing third stage with a temperature of 50-55 DEG C, a humidity of 90%, a time of 15h, an air pressure of 0MPa, and a pole plate water content of 7-9%; (4) a drying first stage with a temperature of 60-65 DEG C, a humidity of 60%, a time of 5h, an air pressure of -0.1MPa to -0.2MPa, and a pole plate water content of 3-5%; (5) a drying second stage with a temperature of 65 DEG C, a humidity of 10%, a time of 10h, an air pressure of 0MPa, and a pole plate water content of 0.5%; and (6) a drying third stage with a temperature of 65-70 DEG C, a humidity lower than 10%, a time of 3h, an air pressure of -0.1MPa to -0.2MPa, and a pole plate water content of 0.3%. With the process provided by the invention, battery initial capacity is ensured, and battery consistency and circulation life are further ensured.
Description
Technical field
The present invention relates to a kind of polar plate solidification technology that is internalized into.
Background technology
Green plate curing is a crucial operation in the lead acid accumulator production process.Its solidification effect directly influences the life-span and the capacity of lead accumulator.Green plate is in the process of solidifying, the further oxidation of metallic lead also forms tribasic lead sulfate and a certain proportion of four basic lead sulphates when generating lead oxide, solidify the pole plate of finishing and become lead oxide in the grid surface corrosion, strengthened the binding ability of grid muscle and active material, therefore, it is particularly crucial controlling temperature, relative humidity and time in each stage of curing room well.
Because it is the transmittance process of an evaporation moisture content that green plate solidifies, existing physical change has chemical change again in this process, and along with the carrying out of transmittance process do not allow to destroy colloid network structure appearance be full of cracks.Must guarantee that meanwhile this lead plaster colloid water evaporates finishes the oxidation of metallic lead (lead on free lead and grid rib surface) and the recrystallization process of various basic lead sulphates before finishing well.Therefore, effectively controlling each stage moisture and metallic lead content well just seems especially important.
Summary of the invention
Technical problem to be solved by this invention just provides provides a kind of pole plate cure under pressure technology that is internalized into, pole plate after this technology is solidified has good intensity, its each stage moisture, metallic lead content data curve steadily reduce, and have effectively improved the phenomenon of later stage metallic lead bust.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of pole plate cure under pressure technology that is internalized into is characterized in that comprising the steps:
1) solidifies the 1st stage, temperature 40-45 ℃, humidity 99%, time 24h, blast 0Mpa, pole plate moisture 〉=10%;
2)) solidify the 2nd stage, temperature 50-55 ℃, humidity 98%, time 16h, blast 0.3Mpa, pole plate moisture 9%;
3) solidify the 3rd stage, temperature 50-55 ℃, humidity 90%, time 15h, blast 0Mpa, pole plate moisture 7-9%;
4) dry the 1st stage, temperature 60-65 ℃, humidity 60%, time 5h, blast-0.1～-0.2Mpa, pole plate moisture 3-5%;
5) dry the 2nd stage, 65 ℃ of temperature, humidity 10%, time 10h, blast 0Mpa, pole plate moisture 0.5%;
6) dry the 3rd stage, temperature 65-70 ℃, humidity＜10%, time 3h, blast-0.1～-0.2Mpa, pole plate moisture 0.3%.
As preferably, before solidifying beginning, in advance curing room ground water is drenched in order to avoid dehydration quickening before the polar plate solidification.
As preferably, described pole plate is the green plate that is internalized into of thickness≤3mm.
As preferably, dry the 1st and the 3rd stage employing-0.2Mpa blast.
The present invention was solidified for 2 stages and has been adopted the technology of positive air pressure cure under pressure, effectively improved the temperature in the curing room, (this stage is in order to guarantee the stable conversion of basic lead sulphate for the consistency of humidity, require green plate must be in high wet condition, when green plate inner for a long time moisture, capillary and hole in the active material are full of by water, hinder the dissolution velocity of oxygen in the environment, oxygen content reduces, the diffusion velocity of oxygen slows down. correspondingly just slowed down the plumbous oxide etch speed in grid surface, therefore set the air pressure of 0.3Mpa, to pressurizeing in the curing room, oxygenation, to guarantee to solidify indoor temperature, the humidity equilibrium, also having guaranteed simultaneously to solidify has a spot of metallic lead eremacausis early stage).
In addition, the present invention adopted in dry 1 stage-little negative pressure drying technology of 0.2Mpa, make its inner Rich Oxygen Amount deficiency, play the speed of effective delay metallic lead oxidation.(this stage pole plate water content is between 7-9%, this moment, the metallic lead oxidation rate began to increase, when the lead plaster water content is lower than 7%, the quick oxidation of metallic lead in the lead plaster is finished, can discharge a large amount of heat in the fast oxidative process of metallic lead, make the quick dehydration of pole plate, be unfavorable for the exhaustive oxidation of metallic lead in the lead plaster, this stage takes the technology of little negative pressure to postpone the oxidation rate of metallic lead, improves the intensity of active material and adhesion, the reduction metallic lead content of lead plaster and grid.）
And the present invention adopted in dry 3 stages-and little negative pressure drying technology of 0.2Mpa, mainly play the effect of the thorough hydrofuge of drying stage.
In a word,, obtained desirable 3BS, 4BS content, both guaranteed the initial capacity of battery, guaranteed the consistency and the cycle life of battery more by the rational Match of above technology.Technological operation of the present invention is simple, be convenient to practical operation.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is further described:
Fig. 1 is curing temperature, moisture curve figure;
Fig. 2 is moisture and metallic lead decline curve figure.
Embodiment
At first the green plate curing mechanism is illustrated:
The curing of pole plate is meant the green plate that is coated with behind the cream, after the pouring acid of surface, form the network structure of skim lead sulfate gelling on the lead plaster surface, solidifying initially, the lead plaster water content is greatly about about 10%, the lead plaster particle is loose relatively, in order to guarantee the solidification effect of lead plaster, requires to be no more than 3% of pole plate gross mass at the fluid loss of cure stage pole plate in early stage.Impel force air circulation in the curing room simultaneously, guarantee indoor each position temperature and humidity uniformity.In the environment of specific temperature and humidity, the moisture content in the pole plate is evaporated according to certain speed, increase pole plate hardness and mechanical strength, and guarantee that crackle does not appear in green plate.
Effective and the bad dehydrating speed with green plate institute water content of plate curing has direct relation.Therefore in definite parameters of curing process, should take into account ambient temperature and relative humidity to the oxidation of water evaporates, free lead and the influence of grid surface corrosion, again according to the thickness and the correlation properties of green plate, in this physical process of water evaporates, because moisture content is dispersed in the cancellated hole, thus it from the lead plaster inside of green plate to outdiffusion.For the evaporation that prevents moisture content destroys the gelling network structure on green plate surface, so just must control environment temperature and relative humidity, the moisture content diffusion velocity of surperficial moisture content evaporation rate of assurance green plate and green plate inside is complementary.The process of finally finishing the recrystallization-oxidation-drying of active material reaches sets up corrosion layer on the grid surface, obtains qualified, desirable pole plate.
It is as follows that the present invention is internalized into pole plate cure under pressure technology particular content:
1. advance the sheet stage, do not exceed process parameters range, must in advance the ground water be drenched, in order to avoid dehydration is accelerated before the polar plate solidification in order to guarantee temperature and relative humidity;
2. the 1st stage of Gu Huaing, to promote the structural remodeling of active material crystallization, for control green plate surface and internal temperature and guarantee vaporization rate that green plate active material internal moisture diffusion velocity is slightly less than surperficial moisture content must take in the curing process of warm high humidity, be controlled at total time about 24h, simultaneously, the rotating speed of circulating fan is difficult for too high, can evenly be incubated, preserving moisture gets final product.
3. in the 2nd stage of Gu Huaing, reach the purpose of equalization temperature, humidity and oxygenation to feeding positive air pressure in the curing room.
4. solidified for the 3rd stage, green plate active material internal moisture is dropped to about 8%, thereby reach the optimum condition of free lead oxidation and grid surface corrosion as soon as possible.Green plate active material water content is 7～9%, and just beginning has tangible oxidation.Utilize this characteristics, prolong the time under this condition as much as possible, through test of many times, 3 stage parameters of curing process are defined as: ambient temperature: 50-55 ℃, relative humidity is controlled at 90%: curing time is at 15h,
5. dry the 1st stage is the fiercest process the most completely of free lead oxidation, when green plate active material water content is lower than 7%, begin aggravation, water content is when 2-5%, green plate surface vaporization rate quickens, make the quick dehydration of green plate, capillary in the active material and hole are got through, a large amount of oxygen can enter and participate in reaction in the space, because plumbous oxidation discharges the too heat of amount, the vaporization rate on aggravation green plate surface, thus this stage adopt little negative pressure to prolong the oxidization time of metallic lead, make its oxidation more thorough.
6. in the 2nd stage of drying, the process of dewatering fully for green plate, in dry run, the green plate moisture content overwhelming majority of removing all is the Heshui that oozes that is present in lead plaster inside with physical state by surface tension, very fraction is between the adsorbed water that is between physics and the chemical state under little charge effect, therefore, its temperature, air quantity size, time control are crucial three elements
7. in the 3rd stage of drying, also be the stage that 3BS converts 4BS in the lead plaster, control water content and exist: positive plate≤0.3%; Bear plate≤0.3%, and obtain the active material of better structure, the technique initialization temperature is at 60-70 ℃, and additional simultaneously little negative pressure is forced dehumidifier.
Below in conjunction with Fig. 1 and Fig. 2 parameters of curing is listed as follows:
Claims (4)
1. one kind is internalized into pole plate cure under pressure technology, it is characterized in that comprising the steps:
1) solidifies the 1st stage, temperature 40-45 ℃, humidity 99%, time 24h, blast 0Mpa, pole plate moisture 〉=10%;
2)) solidify the 2nd stage, temperature 50-55 ℃, humidity 98%, time 16h, blast 0.3Mpa, pole plate moisture 9%;
3) solidify the 3rd stage, temperature 50-55 ℃, humidity 90%, time 15h, blast 0Mpa, pole plate moisture 7-9%;
4) dry the 1st stage, temperature 60-65 ℃, humidity 60%, time 5h, blast-0.1～-0.2Mpa, pole plate moisture 3-5%;
5) dry the 2nd stage, 65 ℃ of temperature, humidity 10%, time 10h, blast 0Mpa, pole plate moisture 0.5%;
6) dry the 3rd stage, temperature 65-70 ℃, humidity＜10%, time 3h, blast-0.1～-0.2Mpa, pole plate moisture 0.3%.
2. the pole plate cure under pressure technology that is internalized into according to claim 1 is characterized in that: before solidifying beginning, in advance curing room ground water is drenched in order to avoid dehydration quickening before the polar plate solidification.
3. the pole plate cure under pressure technology that is internalized into according to claim 1 is characterized in that: described pole plate is the green plate that is internalized into of thickness≤3mm.
4. the pole plate cure under pressure technology that is internalized into according to claim 1 is characterized in that: dry the 1st and the 3rd stage employing-0.2Mpa blast.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943831A (en) * | 2014-03-25 | 2014-07-23 | 超威电源有限公司 | Electrode plate solidification technology for lead-acid battery |
| CN105070886A (en) * | 2015-09-21 | 2015-11-18 | 骆驼集团襄阳蓄电池有限公司 | AGM (absorptive glass mat) switch on-off storage battery positive plate curing process |
| CN105119021A (en) * | 2015-10-08 | 2015-12-02 | 深圳市雄韬电源科技股份有限公司 | Electrode plate curing method capable of improving battery deep cycle life |
| CN105185950A (en) * | 2015-07-22 | 2015-12-23 | 江苏苏中电池科技发展有限公司 | High-temperature curing chamber and curing technology for battery pole plates |
| CN105322141A (en) * | 2015-02-12 | 2016-02-10 | 济源市万洋绿色能源有限公司 | Positive plate curing process of storage battery |
| CN108511694A (en) * | 2018-02-08 | 2018-09-07 | 天能电池集团有限公司 | A kind of polar plate of lead acid storage battery production technology |
| CN108878785A (en) * | 2018-06-27 | 2018-11-23 | 芜湖盘云石磨新能源科技有限公司 | A kind of low energy consumption battery pole plates curing process |
| CN109742330A (en) * | 2019-01-31 | 2019-05-10 | 安徽超威电源有限公司 | A kind of two days high temperature curing process of power lead-acid storage battery |
| CN109873124A (en) * | 2019-01-31 | 2019-06-11 | 安徽超威电源有限公司 | A kind of power lead-acid storage battery high temperature curing process |
| CN110364689A (en) * | 2019-06-04 | 2019-10-22 | 浙江天能电池(江苏)有限公司 | A kind of energy-saving polar plate solidification drying process |
| CN110400909A (en) * | 2019-07-29 | 2019-11-01 | 浙江天能电池(江苏)有限公司 | A kind of lead charcoal accumulator negative plate spontaneous curing technique |
| CN110813675A (en) * | 2019-11-26 | 2020-02-21 | 衡阳开拓光电科技有限公司 | Curing temperature control process for chip production |
| CN112467090A (en) * | 2020-11-06 | 2021-03-09 | 浙江天能汽车电池有限公司 | Curing and drying process for positive plate of start-stop storage battery and storage battery plate group |
| CN113161519A (en) * | 2021-03-26 | 2021-07-23 | 扬州阿波罗蓄电池有限公司 | Preparation process of storage battery for starting and stopping automobile |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103943831B (en) * | 2014-03-25 | 2016-01-20 | 超威电源有限公司 | A kind of applicable lead acid accumulator polar plate solidification technique |
| CN103943831A (en) * | 2014-03-25 | 2014-07-23 | 超威电源有限公司 | Electrode plate solidification technology for lead-acid battery |
| CN105322141A (en) * | 2015-02-12 | 2016-02-10 | 济源市万洋绿色能源有限公司 | Positive plate curing process of storage battery |
| CN105322141B (en) * | 2015-02-12 | 2018-02-23 | 济源市万洋绿色能源有限公司 | A kind of accumulator anode board curing process |
| CN105185950A (en) * | 2015-07-22 | 2015-12-23 | 江苏苏中电池科技发展有限公司 | High-temperature curing chamber and curing technology for battery pole plates |
| CN105185950B (en) * | 2015-07-22 | 2017-08-01 | 江苏海宝电池科技有限公司 | A kind of battery pole plates hot setting room and curing process |
| CN105070886A (en) * | 2015-09-21 | 2015-11-18 | 骆驼集团襄阳蓄电池有限公司 | AGM (absorptive glass mat) switch on-off storage battery positive plate curing process |
| CN105070886B (en) * | 2015-09-21 | 2016-05-25 | 骆驼集团襄阳蓄电池有限公司 | A kind of AGM start and stop accumulator anode board curing process |
| CN105119021A (en) * | 2015-10-08 | 2015-12-02 | 深圳市雄韬电源科技股份有限公司 | Electrode plate curing method capable of improving battery deep cycle life |
| CN108511694B (en) * | 2018-02-08 | 2020-11-17 | 天能电池集团股份有限公司 | Production process of lead-acid storage battery pole plate |
| CN108511694A (en) * | 2018-02-08 | 2018-09-07 | 天能电池集团有限公司 | A kind of polar plate of lead acid storage battery production technology |
| CN108878785A (en) * | 2018-06-27 | 2018-11-23 | 芜湖盘云石磨新能源科技有限公司 | A kind of low energy consumption battery pole plates curing process |
| CN109873124A (en) * | 2019-01-31 | 2019-06-11 | 安徽超威电源有限公司 | A kind of power lead-acid storage battery high temperature curing process |
| CN109742330A (en) * | 2019-01-31 | 2019-05-10 | 安徽超威电源有限公司 | A kind of two days high temperature curing process of power lead-acid storage battery |
| CN109742330B (en) * | 2019-01-31 | 2021-09-10 | 安徽超威电源有限公司 | Two-day high-temperature curing process for power lead-acid storage battery |
| CN110364689A (en) * | 2019-06-04 | 2019-10-22 | 浙江天能电池(江苏)有限公司 | A kind of energy-saving polar plate solidification drying process |
| CN110364689B (en) * | 2019-06-04 | 2020-09-08 | 浙江天能电池(江苏)有限公司 | Energy-saving polar plate curing and drying process |
| CN110400909A (en) * | 2019-07-29 | 2019-11-01 | 浙江天能电池(江苏)有限公司 | A kind of lead charcoal accumulator negative plate spontaneous curing technique |
| CN110813675A (en) * | 2019-11-26 | 2020-02-21 | 衡阳开拓光电科技有限公司 | Curing temperature control process for chip production |
| CN112467090A (en) * | 2020-11-06 | 2021-03-09 | 浙江天能汽车电池有限公司 | Curing and drying process for positive plate of start-stop storage battery and storage battery plate group |
| CN113161519A (en) * | 2021-03-26 | 2021-07-23 | 扬州阿波罗蓄电池有限公司 | Preparation process of storage battery for starting and stopping automobile |
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Application publication date: 20130724 |