CN107589034B - The test method of lead powder water absorption rate - Google Patents
The test method of lead powder water absorption rate Download PDFInfo
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- CN107589034B CN107589034B CN201710763695.2A CN201710763695A CN107589034B CN 107589034 B CN107589034 B CN 107589034B CN 201710763695 A CN201710763695 A CN 201710763695A CN 107589034 B CN107589034 B CN 107589034B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
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Abstract
The present invention relates to field of battery production, disclose a kind of test method of lead powder water absorption rate, comprising the following steps: (1) bulk lead plaster is added water into lead powder；(2) lead plaster is put into stocky in sky steel bowl and strikes off rim of a cup；(3) apparent density for calculating lead plaster is (MCup+lead powder‑MCup)/VCup；If apparent density is within a preset range, the water absorption rate of lead powder is VWater/MLead powder；If apparent density is greater than preset range, then adds V in lead plaster1Water if apparent density is less than preset range, then adds M in lead plaster1Lead powder, then in the same way operation until apparent density within a preset range, then the water absorption rate of lead powder be (VWater+V1)/MLead powderOr VWater/ (MLead powder+M1).Compared with prior art, this method can more precisely measure out the water absorption rate of lead powder, and measurement endpoint quantification is controllable, and fidelity factor is high.
Description
Technical field
The present invention relates to technical field of battery production, in particular to a kind of test method of lead powder water absorption rate.
Background technique
Sealed lead acid storage battery is as energy storage power supply, " heart " of the pole plate as battery, to the property of lead-acid accumulator
Can superiority and inferiority play the role of conclusive, the superiority and inferiority of pole plate performance depends on the active material of pole plate again, as pole plate active matter
The main composition substance of matter --- lead plaster and the lead powder for generating lead plaster, the size of apparent density of lead paste have accurately in technique
Specified value just increases the risk of the quality control of pole plate produced if the apparent density value to lead plaster is not controlled,
Re-extend down is exactly to make final products --- and the properties of product of lead-acid accumulator are unable to get guarantee；And the apparent density of lead plaster with
The water absorption rate for preparing the lead powder of lead plaster is closely bound up, so how to realize that the water absorption rate for measuring lead powder is particularly significant.
Traditional lead powder water absorption rate measurement be lead powder it is living with water together with, be kneaded into lead group, until no extra water oozes out,
This method terminal is unobvious, only feels with naked eyes, and more a little less water of water is ok, and leads to result poor reproducibility.
Summary of the invention
Goal of the invention: aiming at the problems existing in the prior art, the present invention provides a kind of test method of lead powder water absorption rate,
The water absorption rate of lead powder can be more precisely measured out, measurement endpoint quantification is controllable, and fidelity factor is high.
Technical solution: the present invention provides a kind of test methods of lead powder water absorption rate, comprising the following steps:
It (1) is M in qualityLead powderLead powder in be added volume be VWaterWater and at bulk lead plaster；
(2) lead plaster is put into volume is VCup, quality MCupEmpty steel bowl in, lead plaster is slightly above the rim of a cup of steel bowl, is placed on vibration
By lead plaster, the stocky rear lead plaster for using doctor blade rim of a cup, measurement lead plaster are M with steel bowl gross mass in steel bowl in motivationCup+lead powder；
(3) calculate lead plaster apparent density ρ be (MCup+lead powder-MCup)/VCup；
If apparent density ρ is in 1.42 ~ 1.45g/cm3Between, then the water absorption rate of lead powder is VWater/MLead powder；
If apparent density ρ is greater than 1.45g/cm3, then it is V that volume is added in lead plaster again1Water again and at bulk lead plaster, so
It is measured afterwards with above-mentioned (2) and (3) identical method and calculates the apparent density ρ of lead plaster, if apparent density ρ is in 1.42 ~ 1.45g/ at this time
cm3Between, then the water absorption rate of lead powder is (VWater+V1)/MLead powderIf 1.45g/cm is still greater than in apparent density ρ at this time3, then repeat above-mentioned
(2) and (3) are up to apparent density ρ is in 1.42 ~ 1.45g/cm3Between until；
If apparent density is less than 1.42 g/cm3, then it is M that quality is added in lead plaster again1Lead powder again and at bulk lead plaster,
Then it is measured with above-mentioned (2) and (3) identical method and calculates the apparent density ρ of lead plaster, if apparent density ρ is 1.42 at this time ~
1.45g/cm3Between, then the water absorption rate of lead powder is VWater/ (MLead powder+M1), if apparent density ρ is still less than 1.42 g/cm at this time3, then weigh
Multiple above-mentioned (2) and (3) are up to apparent density ρ is in 1.42 ~ 1.45g/cm3Between until.
The utility model has the advantages that the feature measurement lead powder water absorption rate that the present invention is certain using the apparent density range of lead plaster, terminal point determining
Standard stabiliser is accurate, and measurement result reproducibility is preferable, overcomes the deficiencies in the prior art, the product of effective guarantee lead-acid accumulator
Performance.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.
Embodiment 1:
200g lead powder is weighed, is fitted into dry beaker, is added on the lead powder into beaker with the buret equipped with pure water
26.5ml water, and lead powder and water are carefully constantly stirred with glass bar, the lead plaster until stirring into bulk；
The steel bowl that 50ml is accurately measured is taken, the quality for measuring the sky steel bowl is 159.951g, and the lead plaster of bulk is put into
In steel bowl, lead plaster outline be higher than rim of a cup, then by equipped with lead plaster steel bowl be placed on bobbing machine lead plaster is stocky, use scraper will
Extra lead plaster removes and smoothes out rim of a cup above rim of a cup, and the quality that the steel bowl of lead plaster is filled in measurement is 231.456g；
Calculate lead plaster apparent density: ρ=(231.456-159.951)/50=1.4301 g/cm3
Since the apparent density ρ of lead plaster is in 1.42 ~ 1.45g/cm3Between, then water absorption rate X=26.5 × 1000/200 of lead powder=
132.5ml/kg。
Embodiment 2:
200g lead powder is weighed, is fitted into dry beaker, is added on the lead powder into beaker with the buret equipped with pure water
21ml water, and lead powder and water are carefully constantly stirred with glass bar, the lead plaster until stirring into bulk；
The steel bowl that 50ml is accurately measured is taken, the quality for measuring the sky steel bowl is 157.231g, and the lead plaster of bulk is put into
In steel bowl, lead plaster outline be higher than rim of a cup, then by equipped with lead plaster steel bowl be placed on bobbing machine lead plaster is stocky, use scraper will
Extra lead plaster removes and smoothes out rim of a cup above rim of a cup, and the quality that the steel bowl of lead plaster is filled in measurement is 230.031g；
Calculate lead plaster apparent density: ρ=(230.031-157.231)/50=1.456 g/cm3
Since the apparent density ρ of lead plaster is not in 1.42 ~ 1.45g/cm3Between, and it is greater than 1.45 g/cm3, then again in lead plaster
It is the water of 5ml again and at bulk lead plaster that volume, which is added, is then measured with above-mentioned (2) and (3) identical method and calculates lead plaster
Apparent density ρ, if apparent density ρ is in 1.42 ~ 1.45g/cm at this time3Between, then the water absorption rate X of lead powder=(21+5) × 1000/200=
130ml/kg。
If 1.45g/cm is still greater than in apparent density ρ at this time3, then repeat above-mentioned (2) and (3) until apparent density ρ 1.42 ~
1.45g/cm3Between until.
Embodiment 3:
200g lead powder is weighed, is fitted into dry beaker, is added on the lead powder into beaker with the buret equipped with pure water
29ml water, and lead powder and water are carefully constantly stirred with glass bar, the lead plaster until stirring into bulk；
The steel bowl that 50ml is accurately measured is taken, the quality for measuring the sky steel bowl is 162.428g, and the lead plaster of bulk is put into
In steel bowl, lead plaster outline be higher than rim of a cup, then by equipped with lead plaster steel bowl be placed on bobbing machine lead plaster is stocky, use scraper will
Extra lead plaster removes and smoothes out rim of a cup above rim of a cup, and the quality that the steel bowl of lead plaster is filled in measurement is 232.514g；
Calculate lead plaster apparent density: ρ=(232.514-162.428)/50=1.4017 g/cm3
Since the apparent density ρ of lead plaster is not in 1.42 ~ 1.45g/cm3Between, and it is less than 1.42g/cm3, then add in lead plaster again
Entering volume is the lead powder of 21.374g again and at bulk lead plaster, is then measured and is calculated with above-mentioned (2) and (3) identical method
The apparent density ρ of lead plaster, if apparent density ρ is in 1.42 ~ 1.45g/cm at this time3Between, then water absorption rate X=29 × 1000/(200 of lead powder
+ 21.374)=131ml/kg；
If apparent density ρ is still less than 1.42 g/cm at this time3, then repeat above-mentioned (2) and (3) until apparent density ρ 1.42 ~
1.45g/cm3Between until.
The technical concepts and features of above embodiment only to illustrate the invention, its object is to allow be familiar with technique
People cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent transformation or modification that Spirit Essence is done, should be covered by the protection scope of the present invention.
Claims (1)
1. a kind of test method of lead powder water absorption rate, which comprises the following steps:
It (1) is M in qualityLead powderLead powder in be added volume be VWaterWater and at bulk lead plaster；
(2) lead plaster is put into volume is VCup, quality MCupEmpty steel bowl in, lead plaster is slightly above the rim of a cup of steel bowl, is placed on bobbing machine
On by lead plaster in steel bowl it is stocky after use doctor blade rim of a cup lead plaster, measurement lead plaster and steel bowl gross mass be MCup+lead powder；
(3) calculate lead plaster apparent density ρ be (MCup+lead powder-MCup)/VCup；
If apparent density ρ is in 1.42 ~ 1.45g/cm3Between, then the water absorption rate of lead powder is VWater/MLead powder；
If apparent density ρ is greater than 1.45g/cm3, then it is V that volume is added in lead plaster again1Water again and at bulk lead plaster, then with
Above-mentioned (2) and (3) identical method measure and calculate the apparent density ρ of lead plaster, if apparent density ρ is in 1.42 ~ 1.45g/cm at this time3It
Between, then the water absorption rate of lead powder is (VWater+V1)/MLead powderIf 1.45g/cm is still greater than in apparent density ρ at this time3, then repeat above-mentioned (2) and
(3) until apparent density ρ is in 1.42 ~ 1.45g/cm3Between until；
If apparent density is less than 1.42 g/cm3, then it is M that quality is added in lead plaster again1Lead powder again and at bulk lead plaster, then
It is measured with above-mentioned (2) and (3) identical method and calculates the apparent density ρ of lead plaster, if apparent density ρ is in 1.42 ~ 1.45g/cm at this time3
Between, then the water absorption rate of lead powder is VWater/ (MLead powder+M1), if apparent density ρ is still less than 1.42 g/cm at this time3, then above-mentioned (2) are repeated
(3) until apparent density ρ is in 1.42 ~ 1.45g/cm3Between until.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763695.2A CN107589034B (en) | 2017-08-30 | 2017-08-30 | The test method of lead powder water absorption rate |
| PCT/CN2017/113742 WO2019041603A1 (en) | 2017-08-30 | 2017-11-30 | Method for testing water absorption rate of lead powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763695.2A CN107589034B (en) | 2017-08-30 | 2017-08-30 | The test method of lead powder water absorption rate |
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| CN107589034A CN107589034A (en) | 2018-01-16 |
| CN107589034B true CN107589034B (en) | 2019-08-23 |
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| WO (1) | WO2019041603A1 (en) |
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| CN108627612B (en) * | 2018-05-09 | 2021-05-11 | 合肥国轩高科动力能源有限公司 | Device for rapidly determining humidity sensitivity of ternary material |
| CN111426592A (en) * | 2020-04-08 | 2020-07-17 | 攀钢集团重庆钒钛科技有限公司 | Method for detecting water absorption capacity of titanium dioxide |
| CN111999212A (en) * | 2020-08-13 | 2020-11-27 | 界首市南都华宇电源有限公司 | Lead plaster apparent density test system based on Internet of things |
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| JPS5945185B2 (en) * | 1979-07-31 | 1984-11-05 | 松下電器産業株式会社 | Manufacturing method for electrodes for lead batteries |
| CN201615866U (en) * | 2010-02-09 | 2010-10-27 | 超威电源有限公司 | Device for testing apparent density of lead paste |
| CN201795976U (en) * | 2010-09-15 | 2011-04-13 | 超威电源有限公司 | Vibration machine used for measuring apparent density of diachylum |
| CN101975723A (en) * | 2010-09-15 | 2011-02-16 | 超威电源有限公司 | Diachylon apparent density measuring method |
| CN201803920U (en) * | 2010-09-25 | 2011-04-20 | 风帆股份有限公司 | Apparent density detector for lead plaster |
| CN204924846U (en) * | 2015-08-28 | 2015-12-30 | 河南超威正效电源有限公司 | Just, read formula lead plaster apparent gravity testing arrangement |
| CN106990157A (en) * | 2017-02-20 | 2017-07-28 | 骆驼集团襄阳蓄电池有限公司 | A kind of detection method of lead bullion material and its application |
| CN106896035A (en) * | 2017-03-13 | 2017-06-27 | 安徽海容电源动力股份有限公司 | The apparent density method of inspection of lead-acid accumulator lead plaster |
| CN106920923A (en) * | 2017-03-21 | 2017-07-04 | 安徽海容电源动力股份有限公司 | Battery tubular positive plate agent cream amount process control method |
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- 2017-08-30 CN CN201710763695.2A patent/CN107589034B/en active Active
- 2017-11-30 WO PCT/CN2017/113742 patent/WO2019041603A1/en active Application Filing
Non-Patent Citations (1)
| Title |
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| 铅酸电池结构工艺改进及性能研究;许斌;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20160415(第4期);C042-636 |
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| WO2019041603A1 (en) | 2019-03-07 |
| CN107589034A (en) | 2018-01-16 |
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