CN107589034A - The method of testing of lead powder water absorption rate - Google Patents
The method of testing of lead powder water absorption rate Download PDFInfo
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- CN107589034A CN107589034A CN201710763695.2A CN201710763695A CN107589034A CN 107589034 A CN107589034 A CN 107589034A CN 201710763695 A CN201710763695 A CN 201710763695A CN 107589034 A CN107589034 A CN 107589034A
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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, discloses a kind of method of testing of lead powder water absorption rate, comprises 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）Calculate lead plaster apparent density be（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 more than preset range, then adds V in lead plaster1Water, if apparent density is less than preset range, then add 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 is（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, more particularly to a kind of method of testing of lead powder water absorption rate.
Background technology
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
The quality of energy plays conclusive effect, the good and bad active material depending on pole plate again of pole plate performance, as pole plate active matter
The main composition material of matter --- lead plaster and the lead powder for generating lead plaster, the size of apparent density of lead paste have accurately in technique
Setting, if be not controlled by the apparent density value of lead plaster, the risk of the quality control to the pole plate produced just increases,
Re-extend down is exactly to make final products --- and the properties of product of lead-acid accumulator can not be protected；And the apparent density of lead plaster with
Prepare that the water absorption rate of 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 measure is together with lead powder and water work, is kneaded into lead group, untill being oozed out without unnecessary water,
This method terminal unobvious, simply with naked eyes feel, more a little less water of water can, cause result poor reproducibility.
The content of the invention
Goal of the invention：For problems of the prior art, the present invention provides a kind of method of testing 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 scheme：The invention provides a kind of method of testing of lead powder water absorption rate, comprise the following steps：
（1）It is M in qualityLead powderLead powder in add volume be VWaterWater and into bulk lead plaster；
（2）It is V that lead plaster is put into volumeCup, 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 the lead plaster of doctor blade rim of a cup, measurement lead plaster and steel bowl gross mass are MCup+lead powder；
（3）Calculate the apparent density ρ of lead plaster is（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 more than 1.45g/cm3, then it is V to add volume in lead plaster again1Water again and into bulk lead plaster, then
With above-mentioned（2）With（3）Identical method measures and calculates the apparent density ρ of lead plaster, if now apparent density ρ is in 1.42 ~ 1.45g/cm3
Between, then the water absorption rate of lead powder is（VWater+V1）/ MLead powderIf now apparent density ρ is still above 1.45g/cm3, then repeat above-mentioned（2）
With（3）Until apparent density ρ is in 1.42 ~ 1.45g/cm3Between untill；
If apparent density is less than 1.42 g/cm3, then it is M to add quality in lead plaster again1Lead powder again and into bulk lead plaster, so
Afterwards with above-mentioned（2）With（3）Identical method measures and calculates the apparent density ρ of lead plaster, if now apparent density ρ is in 1.42 ~ 1.45g/
cm3Between, then the water absorption rate of lead powder is VWater/（MLead powder+M1）If now apparent density ρ is still less than 1.42 g/cm3, then repeat above-mentioned
（2）With（3）Until apparent density ρ is in 1.42 ~ 1.45g/cm3Between untill.
Beneficial effect：The present invention utilizes the certain feature measurement lead powder water absorption rate of the apparent density scope of lead plaster, terminal point determining
Standard stabiliser is accurate, and measurement result reappearance is preferable, overcomes the deficiencies in the prior art, the product of effective guarantee lead-acid accumulator
Performance.
Embodiment
The present invention is described in detail with reference to specific embodiment.
Embodiment 1：
200g lead powder is weighed, is fitted into dry beaker, adds 26.5ml on the lead powder into beaker with the buret equipped with pure water
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 steel bowl
Interior, lead plaster outline is higher than rim of a cup, then the steel bowl equipped with lead plaster is placed on bobbing machine lead plaster is stocky, using scraper by rim of a cup
The unnecessary lead plaster in top removes and floating rim of a cup, and the quality for measuring the steel bowl for filling lead plaster is 231.456g；
Calculate lead plaster apparent density：ρ=（231.456-159.951）/50=1.4301 g/cm3
Because 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, adds 21ml water on the lead powder into beaker with the buret equipped with pure 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 steel bowl
Interior, lead plaster outline is higher than rim of a cup, then the steel bowl equipped with lead plaster is placed on bobbing machine lead plaster is stocky, using scraper by rim of a cup
The unnecessary lead plaster in top removes and floating rim of a cup, and the quality for measuring the steel bowl for filling lead plaster is 230.031g；
Calculate lead plaster apparent density：ρ=（230.031-157.231）/50=1.456 g/cm3
Because the apparent density ρ of lead plaster is not in 1.42 ~ 1.45g/cm3Between, and it is more than 1.45 g/cm3, then added again in lead plaster
Volume be 5ml water again and into bulk lead plaster, then with above-mentioned（2）With（3）Identical method measures and calculates regarding for lead plaster
Density p, if now apparent density ρ is in 1.42 ~ 1.45g/cm3Between, then the water absorption rate X of lead powder=（21+5）×1000/200=
130ml/kg。
If now apparent density ρ is still above 1.45g/cm3, then repeat above-mentioned（2）With（3）Until apparent density ρ 1.42 ~
1.45g/cm3Between untill.
Embodiment 3：
200g lead powder is weighed, is fitted into dry beaker, adds 29ml water on the lead powder into beaker with the buret equipped with pure 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 steel bowl
Interior, lead plaster outline is higher than rim of a cup, then the steel bowl equipped with lead plaster is placed on bobbing machine lead plaster is stocky, using scraper by rim of a cup
The unnecessary lead plaster in top removes and floating rim of a cup, and the quality for measuring the steel bowl for filling lead plaster is 232.514g；
Calculate lead plaster apparent density：ρ=（232.514-162.428）/50=1.4017 g/cm3
Because the apparent density ρ of lead plaster is not in 1.42 ~ 1.45g/cm3Between, and it is less than 1.42g/cm3, then added again in lead plaster
Volume be 21.374g lead powder again and into bulk lead plaster, then with above-mentioned（2）With（3）Identical method measures and calculates lead
The apparent density ρ of cream, if now apparent density ρ is in 1.42 ~ 1.45g/cm3Between, then water absorption rate X=29 × 1000/ of lead powder（200+
21.374）=131ml/kg；
If now apparent density ρ is still less than 1.42 g/cm3, then repeat above-mentioned（2）With（3）Until apparent density ρ 1.42 ~
1.45g/cm3Between untill.
The technical concepts and features of above-mentioned embodiment only to illustrate the invention, its object is to allow be familiar with technique
People can understand present disclosure and implement according to this, 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 all be included within the scope of the present invention.
Claims (1)
1. a kind of method of testing of lead powder water absorption rate, it is characterised in that comprise the following steps：
（1）It is M in qualityLead powderLead powder in add volume be VWaterWater and into bulk lead plaster；
（2）It is V that lead plaster is put into volumeCup, 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 the lead plaster of doctor blade rim of a cup, measurement lead plaster and steel bowl gross mass are MCup+lead powder；
（3）Calculate the apparent density ρ of lead plaster is（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 more than 1.45g/cm3, then it is V to add volume in lead plaster again1Water again and into bulk lead plaster, then with
It is above-mentioned（2）With（3）Identical method measures and calculates the apparent density ρ of lead plaster, if now apparent density ρ is in 1.42 ~ 1.45g/cm3It
Between, then the water absorption rate of lead powder is（VWater+V1）/ MLead powderIf now apparent density ρ is still above 1.45g/cm3, then repeat above-mentioned（2）With
（3）Until apparent density ρ is in 1.42 ~ 1.45g/cm3Between untill；
If apparent density is less than 1.42 g/cm3, then it is M to add quality in lead plaster again1Lead powder again and into bulk lead plaster, then
With above-mentioned（2）With（3）Identical method measures and calculates the apparent density ρ of lead plaster, if now apparent density ρ is in 1.42 ~ 1.45g/cm3
Between, then the water absorption rate of lead powder is VWater/（MLead powder+M1）If now apparent density ρ is still less than 1.42 g/cm3, then repeat above-mentioned（2）
With（3）Until apparent density ρ is in 1.42 ~ 1.45g/cm3Between untill.
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 |
Applications Claiming Priority (1)
| 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 true CN107589034A (en) | 2018-01-16 |
| CN107589034B CN107589034B (en) | 2019-08-23 |
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| CN201710763695.2A Active CN107589034B (en) | 2017-08-30 | 2017-08-30 | The test method of lead powder water absorption rate |
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| CN (1) | CN107589034B (en) |
| WO (1) | WO2019041603A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627612A (en) * | 2018-05-09 | 2018-10-09 | 合肥国轩高科动力能源有限公司 | It is a kind of quickly to measure ternary material humidity sensitive device |
| 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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| CN201803920U (en) * | 2010-09-25 | 2011-04-20 | 风帆股份有限公司 | Apparent density detector for lead plaster |
| 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 |
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| CN101975723A (en) * | 2010-09-15 | 2011-02-16 | 超威电源有限公司 | Diachylon apparent density measuring method |
| 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 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627612A (en) * | 2018-05-09 | 2018-10-09 | 合肥国轩高科动力能源有限公司 | It is a kind of quickly to measure ternary material humidity sensitive device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107589034B (en) | 2019-08-23 |
| WO2019041603A1 (en) | 2019-03-07 |
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