CN101593823B - Method for pretreating copper insert of copper-insert terminal of lead-acid storage battery before casting - Google Patents
Method for pretreating copper insert of copper-insert terminal of lead-acid storage battery before casting Download PDFInfo
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- CN101593823B CN101593823B CN2009100400179A CN200910040017A CN101593823B CN 101593823 B CN101593823 B CN 101593823B CN 2009100400179 A CN2009100400179 A CN 2009100400179A CN 200910040017 A CN200910040017 A CN 200910040017A CN 101593823 B CN101593823 B CN 101593823B
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- Prior art keywords
- mold insert
- copper
- copper mold
- lead alloy
- bao
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 99
- 239000010949 copper Substances 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000002253 acid Substances 0.000 title claims abstract description 24
- 238000005266 casting Methods 0.000 title claims abstract description 14
- 238000003860 storage Methods 0.000 title abstract 2
- 229910000978 Pb alloy Inorganic materials 0.000 claims abstract description 41
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 229910000648 terne Inorganic materials 0.000 claims description 10
- 239000012459 cleaning agent Substances 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000002203 pretreatment Methods 0.000 abstract 2
- 239000003595 mist Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 150000001879 copper Chemical class 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Cell Electrode Carriers And Collectors (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention provides a method for pretreating a copper insert before casting the copper insert of a copper-insert terminal of a lead-acid storage battery in a bus bar lead alloy bush seat, which comprises the following steps: (1) cleaning the surface of the copper insert; (2) tinning the copper insert; (3) preheating the copper insert; and (4) immersing the copper insert in molten lead alloy for a moment, taking the copper insert out, swinging the copper insert to remove lead alloy not firmly adhered to the surface of the lead alloy, immediately placing the copper insert into a cavity of a lead alloy bush seat of a bus bar casting mold, and casting lead alloy. In the pretreatment method, the copper insert casting process can make the joint of the interfaces of the copper insert and the bus bar lead alloy bush seat tight enough to greatly reduce slight leakage around the copper insert during use and prolong the service life of the battery to a maximum degree. The pretreatment method is simple in step and easy in operation, well solves critical problems in battery manufacturing and using industries, and has a great realistic significance.
Description
Technical field
The present invention relates to a kind of manufacture method of battery post, relate in particular to a kind of manufacture method of lead acid accumulator copper core electrode post, more specifically relate to a kind of copper mold insert Bao Zhu and before bus-bar lead alloy block set, the copper mold insert is carried out pretreated method copper core electrode post.
Background technology
The electrode terminal that existing lead acid accumulator is used has lead terminal post, copper in-core embedding pole and stainless steel bolt built-in mosaic polar column etc.Copper in-core embedding pole promptly is that the copper mold insert Bao Zhu that is threaded blind hole in the middle of adopting uses as electrode in the lead alloy block set of bus-bar, this pole intensity height, contact area is big, contact resistance is little, installation is firm, easy to use, be a kind of electrode terminal of comparatively generally using of lead acid accumulator in recent years.But this copper in-core embedding pole in use for some time, the phenomenon of acid can appear oozing around the copper mold insert frequently, the also phenomenon that promptly has acid mist up to emit, this is that permeability is strong when being acid mist owing to acid electrolyte gasification, in case the copper mold insert combines defective tightness with the interface of bus-bar lead alloy block set, acid mist will pass bus-bar lead alloy block set wall, enters the interface of copper mold insert and bus-bar lead alloy block set, and trickle seepage finally can cause scrapping of battery around this copper mold insert.Because this seepage phenomenon is difficult to detect, adopting common pressurization to detect also fails to detect, have only in use for some time and just can occur, in a single day just almost can not repair and the seepage phenomenon occurs, thereby trickle leakage problems around the copper mold insert in use can appear in copper in-core embedding pole frequently, becomes the manufacturing of long-term puzzlement battery, uses a difficult problem of industry.
Summary of the invention
For overcoming the problem of above existence, the copper mold insert Bao Zhu that the objective of the invention is to propose a kind of lead acid accumulator copper core electrode post carries out pretreated method to the copper mold insert before bus-bar lead alloy block set, this method can make the copper mold insert combine tightr with the interface of bus-bar lead alloy block set, thereby avoid occurring around the copper mold insert in the use phenomenon of trickle seepage, prolong the useful life of battery.
For realizing above purpose, the preprocess method of lead acid accumulator copper core electrode post copper mold insert Bao Zhuqian of the present invention in turn includes the following steps:
(1) adopts the metal cleaning agent that copper mold insert surface is cleaned, dry;
(2) zinc-plated processing is carried out on the copper mold insert surface after cleaning;
(3) will put into 120-180 ℃ baking oven insulation 20-50 minute through the copper mold insert of zinc-plated processing;
(4) from baking oven, the copper mold insert is taken out, it is immersed about 2-4 second in the lead alloy fused solution, get rid of the not firm lead alloy of surface adhesion after the taking-up, put into the die cavity of bus-bar casting die lead alloy block set immediately, carry out the Bao Zhu of lead alloy.
Said method execution mode preferably is, in step (4), after from baking oven the copper mold insert being taken out, earlier it immersed pure dissolubility scaling powder 2-4 second, it immersed in lead alloy fused solution again.
Because the copper mold insert after zinc-plated might form tin oxide film in air, this oxide-film can stop lead alloy fused solution wetting to copper mold insert surface, in addition, lead alloy fused solution surface has certain force of strain, this tension force can stop lead alloy fused solution wetting to copper mold insert surface equally, therefore the copper mold insert is immersed scaling powder a moment, on the one hand the oxide-film on solubilized copper mold insert surface, can reduce the tension force on lead alloy fused solution surface on the other hand, wettability is significantly improved.
In order better to remove grease, the spot on copper mold insert surface, in the above-mentioned steps (1), after the agent of employing metal cleaning is cleaned copper mold insert surface, adopt better liquor zinci chloridi of penetration or dilute hydrochloric acid solution that copper mold insert surface is cleaned again.
The concentration of above-mentioned metal cleaning agent is 4-8%, and the concentration of liquor zinci chloridi or dilute hydrochloric acid solution is 12-18%.
Because the copper mold insert surface through turnning and milling or die casting is not level and smooth fully, and still there is micropore, in order to hide the greasy dirt that stays in these micropores of more thorough removing, after copper mold insert process metal cleaning agent in the above-mentioned steps (1) and liquor zinci chloridi or dilute hydrochloric acid solution clean, in 60-70 ℃ ethanolic solution, embathed 15-30 minute again.
The thickness of tin coating is the 15-20 micron in the above-mentioned steps (2).
In the above-mentioned steps (3), the preferred 150-160 of temperature of oven ℃, the preferred 30-40 of temperature retention time minute.
Lead alloy in the above-mentioned steps (4) is 1: 1 a terne metal.
Because battery in use, the regular effect that is subjected to torsion of tapped blind hole meeting at copper core electrode post top, in order to make copper core electrode post in long-term use, can not occur becoming flexible because of twisting force, above-mentioned steps (1) is before the agent of employing metal cleaning is cleaned copper mold insert surface, also adopt cutting tools to form some grooves at the bag casting face of copper mold insert, the existence of these grooves, make the lead alloy cover base inner surface that wraps bus-bar in the casting process can form the projection that is halved together with these grooves, thereby make the lead alloy block set of bus-bar more firm, can better resist torsion from copper core electrode post screw top blind hole with combining of copper mold insert.
Above-mentioned groove is the cross star groove, the parallel axes of the vertical and copper core electrode post of this cross star groove.
The setting of these cross star grooves makes it no matter is rotation on the left and right directions, or the pulling of above-below direction, all can be subjected to the restriction of this structure simultaneously, thereby more effectively guarantee the compactness that the copper mold insert combines with the lead alloy block set.
The preprocess method of lead acid accumulator copper core electrode post copper mold insert Bao Zhuqian of the present invention, at first scrubbing is carried out on copper mold insert surface, oil removal treatment, it can be combined closely with the tin layer in zinc-plated process, and the copper mold insert is preheated, can dwindle the temperature difference of copper mold insert and lead alloy fused solution, thereby guarantee the easier copper mold insert surface that is penetrated into of lead alloy fused solution, and before the copper mold insert being put into the die cavity of bus-bar casting die lead alloy block set, earlier the copper mold insert is immersed the lead alloy fused solution for a moment, get rid of the not firm lead alloy of surface adhesion then, purpose is to allow copper mold insert surface have certain roughness, make the lead alloy fused solution in the bag casting process easier attached to copper mold insert surface, thereby make the copper mold insert combine tightr with the interface of bus-bar lead alloy block set, this closely in conjunction with significantly reducing the phenomenon appearance that occurs trickle seepage in the use around the copper mold insert, at utmost prolong the useful life of battery.Preprocess method step of the present invention is simple, processing ease, to the adhesion between raising copper mold insert and bus-bar lead alloy block set interface is effective way, this method has solved the battery manufacturing well, has used industry to feel a thorny difficult problem, is of great practical significance.
Embodiment
Below in conjunction with specific embodiment the present invention is described in more detail; illustrated embodiment is not to be used to limit protection scope of the present invention; all equivalences that does not break away from technical solution of the present invention are implemented or change; as adopt other washing agent that can remove greasy dirt or other can improve the material of wettability; or the mode of change preheating, all should be included in the scope of the present invention.
The copper mold insert of following examples forms stair-stepping upper and lower two parts by the solid copper cylinder, and the diameter of top cylinder is bigger than the diameter of lower cylindrical, at the end face of top cylinder along central shaft to being formed with tapped blind hole.
Embodiment 1
(1) adopt cutting tools to generate the transverse concave groove of " one " font of a pair of being at the cylindrical side of copper mold insert bottom;
(2) adopting concentration is that 5% metal cleaning agent, concentration are that 15% liquor zinci chloridi cleans the copper mold insert surface that step (1) obtains successively, and the ethanolic solution of again the copper mold insert being put into 65 ℃ soaked 30 minutes, and taking-up is dried;
(3) will clean the copper mold insert surface that obtains through step (2) and carry out zinc-plated processing;
(4) will put into 160 ℃ baking oven insulation 25 minutes through the copper mold insert of zinc-plated processing;
(5) from baking oven, the copper mold insert is taken out, adopt tool holder or locking copper mold inserts such as metal pincers or screw rod, it is immersed pure dissolubility scaling powder earlier took out after about 2 seconds, immerse about 2 seconds in 1: 1 the terne metal fused solution again, get rid of the not firm terne metal of surface adhesion after the taking-up, put into the die cavity of bus-bar casting die terne metal block set immediately, carry out the Bao Zhu of terne metal.
Embodiment 2
(1) adopt cutting tools to generate the star-like groove of " ten " word of a pair of being, the axially parallel of the vertical and copper mold insert of the star-like groove of this cross at the cylindrical side of copper mold insert bottom;
(2) adopting concentration is that 6% metal cleaning agent, concentration are that 13% dilute hydrochloric acid solution cleans the copper mold insert surface that step (1) obtains successively, and the ethanolic solution of again the copper mold insert being put into 60 ℃ soaked 20 minutes, and taking-up is dried;
(3) will clean the copper mold insert surface that obtains through step (2) and carry out zinc-plated processing;
(4) will put into 150 ℃ baking oven insulation 20 minutes through the copper mold insert of zinc-plated processing;
(5) from baking oven, the copper mold insert is taken out, adopt tool holder or locking copper mold inserts such as metal pincers or screw rod, it is immersed pure dissolubility scaling powder earlier took out after about 3 seconds, immerse about 2 seconds in 1: 1 the terne metal fused solution again, get rid of the not firm terne metal of surface adhesion after the taking-up, put into the die cavity of bus-bar casting die terne metal block set immediately, carry out the Bao Zhu of terne metal.
Through the copper mold insert that embodiment 1,2 preprocess methods were handled, Bao Zhuhou is as the pole of lead acid accumulator, and the resistance that the employing microhmmeter records meets the use standard of electrode all less than 10 micro-ohms.
The preprocess method of copper mold insert Bao Zhuqian of the present invention, be that the inventor obtains through long term studies and practice, the copper core electrode post that the bag cast becomes after this method is handled, in long use, that does not all find the copper mold insert the phenomenon that acid mist up emits occurs on every side, has prolonged the useful life of battery greatly.
Claims (8)
1. the preprocess method of a lead acid accumulator copper core electrode post copper mold insert Bao Zhuqian in turn includes the following steps:
(1) adopts the metal cleaning agent earlier copper mold insert surface to be cleaned, adopt liquor zinci chloridi or dilute hydrochloric acid solution that copper mold insert surface is cleaned then again, the copper mold insert after cleaning is placed in 60-70 ℃ the ethanolic solution and embathed 15-30 minute, dry;
(2) zinc-plated processing is carried out on the copper mold insert surface after drying;
(3) will put into 120-180 ℃ baking oven insulation 20-50 minute through the copper mold insert of zinc-plated processing;
(4) from baking oven, the copper mold insert is taken out, it is immersed 2-4 second in the lead alloy fused solution, get rid of the not firm lead alloy of surface adhesion after the taking-up, put into the die cavity of bus-bar casting die lead alloy block set immediately, carry out the Bao Zhu of lead alloy.
2. lead acid accumulator copper core electrode post copper mold insert Bao Zhuqian preprocess method according to claim 1, it is characterized in that: in the described step (4), after from baking oven the copper mold insert being taken out, earlier the copper mold insert is immersed pure dissolubility scaling powder 2-4 second, it is immersed in the described lead alloy fused solution again.
3. lead acid accumulator copper core electrode post copper mold insert Bao Zhuqian preprocess method according to claim 1 and 2, it is characterized in that: in the described step (1), the concentration of metal cleaning agent is 4-8%, and the concentration of liquor zinci chloridi or dilute hydrochloric acid solution is 12-18%.
4. lead acid accumulator copper core electrode post Bao Zhuqian preprocess method according to claim 3 is characterized in that: the thickness of tin coating is the 15-20 micron in the described step (2).
5. lead acid accumulator copper core electrode post copper mold insert Bao Zhuqian preprocess method according to claim 1 and 2, it is characterized in that: in the described step (3), temperature of oven is 150-160 ℃, and temperature retention time is 30-40 minute.
6. lead acid accumulator copper core electrode post copper mold insert Bao Zhuqian preprocess method according to claim 1 and 2, it is characterized in that: the lead alloy in the described step (4) is 1: 1 a terne metal.
7. lead acid accumulator copper core electrode post copper mold insert Bao Zhuqian preprocess method according to claim 1 and 2, it is characterized in that: described step (1) also adopted cutting tools to form some grooves at copper mold insert bag casting face before the agent of employing metal cleaning is cleaned copper mold insert surface.
8. lead acid accumulator copper core electrode post copper mold insert Bao Zhuqian preprocess method according to claim 7, it is characterized in that: described groove is the cross star groove, the parallel axes of the vertical and copper core electrode post of this cross star groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100400179A CN101593823B (en) | 2009-05-31 | 2009-05-31 | Method for pretreating copper insert of copper-insert terminal of lead-acid storage battery before casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100400179A CN101593823B (en) | 2009-05-31 | 2009-05-31 | Method for pretreating copper insert of copper-insert terminal of lead-acid storage battery before casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101593823A CN101593823A (en) | 2009-12-02 |
| CN101593823B true CN101593823B (en) | 2010-12-29 |
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| CN2009100400179A Active CN101593823B (en) | 2009-05-31 | 2009-05-31 | Method for pretreating copper insert of copper-insert terminal of lead-acid storage battery before casting |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969108B (en) * | 2010-10-30 | 2013-01-23 | 风帆股份有限公司 | Copper core type terminal column of valve-regulated lead-acid accumulator and preparation method |
| CN102139363B (en) * | 2010-12-20 | 2013-06-05 | 湖北润阳新能源有限公司 | Mould for casting post lead part of lead-acid storage battery |
| CN102528200B (en) * | 2011-12-12 | 2015-06-03 | 肇庆理士电源技术有限公司 | Pretreatment method of copper insert of storage battery terminal |
| CN104332583A (en) * | 2014-09-02 | 2015-02-04 | 安徽超威电源有限公司 | Manufacturing process of copper core type storage battery terminal post |
| CN104241717B (en) * | 2014-09-26 | 2016-07-06 | 浙江天能电池(江苏)有限公司 | A kind of loosening copper core electrode post repair method |
| CN105537312B (en) * | 2015-12-21 | 2018-02-02 | 洛阳铜一金属材料发展有限公司 | A kind of copper-lead complex plate strip and preparation method thereof |
| CN105428586A (en) * | 2015-12-28 | 2016-03-23 | 山东圣阳电源股份有限公司 | Battery terminal manufacturing technology and apparatus thereof |
| CN105855518B (en) * | 2016-06-21 | 2018-01-16 | 金锢电气有限公司 | A kind of production method of copper aluminium conductor |
| CN108630901A (en) * | 2017-03-23 | 2018-10-09 | 四川南都国舰新能源股份有限公司 | Pole group manufacturing method of the lead-acid accumulator based on sheath copper bus-bar |
| CN109378437A (en) * | 2018-10-25 | 2019-02-22 | 广东古粤新能源科技有限公司 | A kind of lead-acid accumulator copper tip pole and cast alloys and production method |
| CN112670600B (en) * | 2020-12-08 | 2024-04-12 | 天能电池集团股份有限公司 | Lead storage battery and preparation method thereof |
| CN112736366B (en) * | 2020-12-29 | 2023-06-27 | 上海应用技术大学 | Method for cast-welding light metal negative grid lead storage battery busbar |
| CN113249674B (en) * | 2021-05-13 | 2022-07-05 | 江西泰和百盛实业有限公司 | Production process of tinned copper wire capable of preventing tinned layer from falling off |
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| CN1632359A (en) * | 2004-11-23 | 2005-06-29 | 杨康水 | Tin plated copper capillary and process for producing same |
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- 2009-05-31 CN CN2009100400179A patent/CN101593823B/en active Active
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|---|---|---|---|---|
| CN1632359A (en) * | 2004-11-23 | 2005-06-29 | 杨康水 | Tin plated copper capillary and process for producing same |
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Address after: Guangyi street Chenghai District 515800 in Guangdong Province, Shantou BrightChina Industrial Zone Patentee after: GUANGDONG DYNAVOLT RENEWABLE ENERGY TECHNOLOGY Co.,Ltd. Address before: Guangyi street Chenghai District 515800 in Guangdong Province, Shantou BrightChina Industrial Zone Patentee before: GUANGDONG DYNAVOLT POWER TECHNOLOGY Co.,Ltd. |
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