CN110411681A - Pole quality nondestructive detecting method - Google Patents
Pole quality nondestructive detecting method Download PDFInfo
- Publication number
- CN110411681A CN110411681A CN201910674751.4A CN201910674751A CN110411681A CN 110411681 A CN110411681 A CN 110411681A CN 201910674751 A CN201910674751 A CN 201910674751A CN 110411681 A CN110411681 A CN 110411681A
- Authority
- CN
- China
- Prior art keywords
- pole
- compressed air
- container
- sealing ring
- detecting method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to DC power supply pole technical field of quality detection, and in particular to a kind of pole quality nondestructive detecting method, comprising the following steps: (a) installs sealing ring at the electrode column sealing position manufactured；(b) pole of sealing ring will be installed, sealing ring is tipped upside down in container with upper bit；(c) hold-down bolt compresses seal is used；(d) container is completely disposed in water-bath together with pole；(e) it is passed through compressed air into container, keeps compressed air pressure constant；(f) the compressed-air manometer pointer on observation compressed air pipe has unchanged, if unchanged, bubble-free evolution in pole surface then determines pole qualification；The present invention carries out quality non-destructive testing to pole in pole manufacturing process, avoids defect pole from being transferred to next process and carries out battery assembly, causes to occur pole because defect pole causes battery electrode column sealing to fail in subsequent charge and discharge and use process and climb sour phenomenon.
Description
Technical field
The present invention relates to DC power supply pole technical field of quality detection, and in particular to a kind of pole quality non-destructive testing side
Method.
Background technique
Currently, polar post of lead acid batteries mostly uses greatly the structure of the outer lead-sheathing of embedded copper core, pole is during manufacture, first
Pole copper core is put into die cavity, then lead liquid is poured into die cavity and is formed, lead liquid flows into die cavity under the effect of gravity, because of lead liquid
The defects of speed into die cavity is slower, encounters copper core and mold quick solidification is easily layered, crackle, stomata, it is especially right
In the stomata that can not be observed with the naked eye, there is presently no effective detection means to be detected, and such pole often flows
Next process is gone to, the reduction of product quality is directly resulted in, if stomata is connected above and below electrode column sealing face, is used in battery
Acid solution can be climbed out of along stomata in the process, lead to seal failure, caused pole leakage acid, corroded peripheral equipment, cause environmental pollution.
Summary of the invention
In order to solve the above-mentioned technical problem the deficiency in, it is an object of the invention to: a kind of lossless inspection of pole quality is provided
Survey method prevents the circulation of defect pole to next process for the detection to pole quality, cause battery charge and discharge process or
Occur pole after a period of use and climbs sour phenomenon.
The present invention is technical solution used by solving its technical problem are as follows:
The pole quality nondestructive detecting method, comprising the following steps:
(a) sealing ring is installed at the electrode column sealing position manufactured；
(b) pole of sealing ring will be installed, sealing ring is tipped upside down in container with upper bit, and pole welds the one of busbar connector
Up；
(c) hold-down bolt compresses seal is used, it is ensured that pole seals in container；
(d) container is completely disposed in water-bath together with pole；
(e) compressed air is passed through into container by the compressed air pipe being connected with container, keeps compressed air pressure
Power is constant, and pressure maintaining is for a period of time；
(f) observe compressed air pipe on compressed-air manometer pointer have it is unchanged, if unchanged, pole surface without
Bubble evolution then determines pole qualification；Otherwise unqualified.
Preferably, the compressed air pressure in step (e) is 10-300KPa, dwell time 3-50s.
Preferably, valve is set on the compressed air pipe in step (f).
Compared with prior art, the invention has the following advantages:
The present invention carries out quality non-destructive testing to pole in pole manufacturing process, and defect pole is avoided to be transferred to next process
Battery assembly is carried out, causes pole occur because defect pole causes battery electrode column sealing to fail in subsequent charge and discharge and use process
Column climbs sour phenomenon.It ultimately causes battery to scrap, corrosion surrounding devices cause damages, and will not cause to damage to pole itself, be
A kind of safe and reliable lossless detection method.
Specific embodiment
The embodiment of the present invention is described further below:
Embodiment 1
Pole quality nondestructive detecting method of the present invention, comprising the following steps:
(a) sealing ring is installed at the electrode column sealing position manufactured；
(b) pole of sealing ring will be installed, sealing ring is tipped upside down in container with upper bit, and pole welds the one of busbar connector
Up；
(c) hold-down bolt compresses seal is used, it is ensured that pole seals in container；
(d) container is completely disposed in water-bath together with pole；
(e) valve is opened, compressed air is passed through into container by the compressed air pipe being connected with container, keeps pressure
Contracting air pressure is constant, pressure maintaining for a period of time, compressed air pressure 10-300KPa, dwell time 3-50s；
(f) observe compressed air pipe on compressed-air manometer pointer have it is unchanged, if unchanged, pole surface without
Bubble evolution then determines pole qualification；Otherwise unqualified.
Embodiment 2
After the completion of pole casting, the detection of pole stomata is carried out.An O-ring seal is placed on two platform of pole, pole is fallen
It is placed in dedicated test tooling steel bowl, tightens hold-down bolt, pole is completely disposed in water-bath, the compression for being passed through 200KPa is empty
Gas, pole surface do not have bubble to escape, are unchanged in gauge hand 30s.With qualified pole assembled battery is detected, to dry state
Battery carries out air-leakage test, does not have without gas leak phenomenon to battery progress electrolyte filling and charge and discharge test at electrode column sealing
There is generation pole to climb sour phenomenon.
Pole detecting tool: pole detecting tool includes the container and hold-down bolt that can connect compressed air pipe.
Claims (3)
1. a kind of pole quality nondestructive detecting method, which comprises the following steps:
(a) sealing ring is installed at the electrode column sealing position manufactured；
(b) pole of sealing ring will be installed, sealing ring is tipped upside down in container with upper bit, and the one of pole welding busbar connector faces
On；
(c) hold-down bolt compresses seal is used, it is ensured that pole seals in container；
(d) container is completely disposed in water-bath together with pole；
(e) compressed air is passed through into container by the compressed air pipe being connected with container, keeps compressed air pressure permanent
Fixed, pressure maintaining is for a period of time；
(f) the compressed-air manometer pointer on observation compressed air pipe has unchanged, if unchanged, pole surface bubble-free
Evolution then determines pole qualification；Otherwise unqualified.
2. according to pole quality nondestructive detecting method described in claim 1, which is characterized in that the compressed air pressure in step (e)
Power is 10-300KPa, dwell time 3-50s.
3. according to pole quality nondestructive detecting method described in claim 1, which is characterized in that the compressed air hose in step (f)
Valve is set on road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910674751.4A CN110411681A (en) | 2019-07-25 | 2019-07-25 | Pole quality nondestructive detecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910674751.4A CN110411681A (en) | 2019-07-25 | 2019-07-25 | Pole quality nondestructive detecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110411681A true CN110411681A (en) | 2019-11-05 |
Family
ID=68363014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910674751.4A Pending CN110411681A (en) | 2019-07-25 | 2019-07-25 | Pole quality nondestructive detecting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110411681A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696899A (en) * | 2009-11-09 | 2010-04-21 | 卧龙电气集团股份有限公司 | Maintenance-free detection device and method thereof of air tightness of small cell cover |
| CN208012965U (en) * | 2018-02-11 | 2018-10-26 | 合肥国轩高科动力能源有限公司 | Lithium battery post laser welding air tightness detection device |
| CN109253846A (en) * | 2018-09-29 | 2019-01-22 | 天能电池集团有限公司 | It is a kind of for detecting the device and method of accumulator terminal sealing performance |
| CN109959488A (en) * | 2019-03-22 | 2019-07-02 | 浙江天能电池(江苏)有限公司 | Energy storage battery electrode column sealing device for detecting performance and its detection method |
-
2019
- 2019-07-25 CN CN201910674751.4A patent/CN110411681A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696899A (en) * | 2009-11-09 | 2010-04-21 | 卧龙电气集团股份有限公司 | Maintenance-free detection device and method thereof of air tightness of small cell cover |
| CN208012965U (en) * | 2018-02-11 | 2018-10-26 | 合肥国轩高科动力能源有限公司 | Lithium battery post laser welding air tightness detection device |
| CN109253846A (en) * | 2018-09-29 | 2019-01-22 | 天能电池集团有限公司 | It is a kind of for detecting the device and method of accumulator terminal sealing performance |
| CN109959488A (en) * | 2019-03-22 | 2019-07-02 | 浙江天能电池(江苏)有限公司 | Energy storage battery electrode column sealing device for detecting performance and its detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191105 |
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| RJ01 | Rejection of invention patent application after publication |