CN103872284B - A kind of high intensity copper core electrode post preparation method and product - Google Patents
A kind of high intensity copper core electrode post preparation method and product Download PDFInfo
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- CN103872284B CN103872284B CN201410123052.8A CN201410123052A CN103872284B CN 103872284 B CN103872284 B CN 103872284B CN 201410123052 A CN201410123052 A CN 201410123052A CN 103872284 B CN103872284 B CN 103872284B
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- copper core
- lead
- electrode post
- high intensity
- external diameter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/04—Casting in, on, or around objects which form part of the product for joining parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
- B22D25/04—Casting metal electric battery plates or the like
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a kind of high intensity copper core electrode post preparation method and product, the method of the invention uses prefluxing that lead base punching press effectively increases copper core and the adhesion of lead base and torsion again, technical process is simple, easily operation, overcome the loose contact phenomenon of copper core and lead base, improve product quality.Using a kind of high intensity copper core electrode post of preparing of the inventive method to include being provided with copper core and the lead base of parcel copper core hypomere of internal thread hole, described copper core hypomere external diameter is less than epimere external diameter, and casting, stamping forming lead base external diameter are identical with the external diameter of copper core epimere.
Description
Technical field
The present invention relates to accumulator field, be specifically related to a kind of high intensity copper core electrode post preparation method, the invention still further relates to a kind of high intensity copper core electrode post using described preparation method to produce.
Background technology
The problems such as electric automobile occurs loosening because vibration is easily caused pole junction in running, loose contact.In order to the pole connecting line of battery is difficult to loosen and terminal attractive in appearance, lead terminal post is changed into copper core structure pole by us, the copper core hypomere periphery casting lead base that copper core structure pole is substantially upper-lower section external diameter is identical at present forms, but the torsion combined between copper core and lead base is the most as one wishes, operator twist the excessive copper core that will result in of bolt torsion and loosen, and produce loose contact, cause interior resistive big, when heavy-current discharge, cause that lead base is exothermic melting burns out terminal.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of high intensity copper core electrode post preparation method, and copper core electrode post torsional moment is greatly improved, and overcomes the loose contact phenomenon of copper core and lead base, improves product quality, and technical process is simple, easily operates.
The present invention is achieved through the following technical solutions:
A kind of preparation method of high intensity copper core electrode post, including
Step 1: dissolve lead pig, lead liquid temp is maintained at 450～480 DEG C；
Step 2: casting die is heated to 100～150 DEG C；
Step 3: inorganic flux is coated with the contact surface contacted with lead liquid all over copper core hypomere desire；
Step 4: the copper core of coated inorganic flux is placed in baking oven and be heated to 90～120 DEG C, make scaling powder dry completely；
Step 5: copper core is preheated to 60～90 DEG C of mould cavities putting in step 2, closes tight mould, dips the lead liquid of step 1, pours in mould, after lead liquid cooled and solidified, opens mould, takes out the copper core electrode post cast.
The present invention further improvement project is, also includes step 6: copper core electrode post step 5 cast is preheated to 50～80 DEG C of die cavitys putting into diel, and copper core electrode post hypomere lead base position is carried out 1-2 ton forcing press punch forming.
The present invention further improvement project is, lead pig described in step 1 puts into before dissolving, and is first carried out, and then moist lead pig is placed on lead stove 15～20min and dries.Can prevent from lead pig from putting into lead liquid when dissolving to splash.
The present invention further improvement project is, when step 3 is coated with inorganic flux in copper core, copper core epimere is non-can not inorganic flux in snearing with lead liquid contact surface.Prevent copper core epimere from aoxidizing blackening, corrode copper core epimere, and affect attractive in appearance.
The invention still further relates to a kind of high intensity copper core electrode post using described preparation method to produce, including the copper core and the lead base of parcel copper core hypomere that are provided with internal thread hole, described copper core hypomere external diameter be less than epimere external diameter, casting, stamping forming lead base external diameter identical with the external diameter of copper core epimere.
The further improvement project of the present invention is, described copper core hypomere outer peripheral face is provided with multiple A groove.The design of A groove strengthens the power that be combined with each other of copper core and lead base.
The present invention further improvement project is, described lead base outer peripheral face is provided with B groove, and/or the outer peripheral face of described copper core epimere is provided with C groove.B groove and C groove play anti-pole and climb the effect of acid.
The present invention compared with prior art, has a following obvious advantage:
One, the method for the invention uses inorganic flux to be coated with the tin layers all over copper core surface, inorganic flux has faint corrosiveness, the oxide layer on copper core surface can be removed, but smear the copper core after scaling powder and need to put into preheating in baking oven, because there is liquid pearl on the copper core surface just smeared, if the lead liquid running into high temperature can produce substantial amounts of gas, thus affects the molding of lead liquid.And the corrosion of copper core electroplating surfaces with tin after copper core preheating, can be accelerated, make copper core surface and lead liquid be bound more closely, solve copper core and lead base loose contact problem, be greatly enhanced the combination degree of copper core and lead base.
Two, the method for the invention due to lead base after cast molding through stamping forming, improve lead base density, effectively increase adhesion and the torsion of copper core and lead base.
Three, product copper core hypomere outer peripheral face of the present invention is provided with multiple A groove, all greatly strengthen the adhesion of copper core and lead base, the copper core electrode post torsional moment of equivalent specifications significantly strengthens, simultaneously because copper core hypomere external diameter is less than epimere external diameter, save the consumption of copper, cost-effective.
Four, product of the present invention due to copper core electrode post external diameter the most equal, lead base is not the round boss of prominent copper core, saves the installation dimension space coordinated with sealing ring, middle cover, can strengthen copper core size, the torsional moment of further increase copper core electrode post.
Accompanying drawing explanation
Fig. 1 is product structure figure of the present invention.
Fig. 2 is product of the present invention non-punching press pre-structure figure.
Fig. 3 is another kind of high intensity copper core pole column structure figure (copper core upper-lower section external diameter is identical) that the present invention produces.
Detailed description of the invention
Preparation method of the present invention:
Step 1: dissolve lead pig, lead liquid temp is maintained at 450～480 DEG C；
Step 2: casting die is heated to 100～150 DEG C；
Step 3: inorganic flux is coated with the contact surface contacted with lead liquid all over copper core hypomere desire；
Step 4: the copper core of coated inorganic flux is placed in baking oven and be heated to 90～120 DEG C, make scaling powder dry completely；
Step 5: copper core is preheated to 60～90 DEG C of mould cavities putting in step 2, closes tight mould, dips the lead liquid of step 1, pour in mould, after lead liquid cooled and solidified, open mould, taking out the copper core electrode post (as shown in Figure 2) cast, lead base external diameter is more than copper core epimere external diameter 0.5-5mm.
Step 6: copper core electrode post step 5 cast is preheated to 50～80 DEG C of die cavitys putting into diel, carries out 1-2 ton forcing press punch forming (as shown in Figure 1) to copper core electrode post hypomere lead base position.
Before lead pig described in step 1 puts into and dissolves in preparation process, first it is carried out, then moist lead pig is placed on lead stove 15～20min and dries.Can prevent from lead pig from putting into lead liquid when dissolving to splash.
When step 3 is coated with inorganic flux in copper core, copper core epimere is non-can not inorganic flux in snearing with lead liquid contact surface.Prevent copper core epimere from aoxidizing blackening, corrode copper core epimere, and affect attractive in appearance.
The copper core terminal that step 5 has been cast is off quality, melts the lead of copper core hypomere, puts into pouring again in the mould of step 2.Underproof product again reuse is produced, reduces copper core electrode post disqualification rate, improve product quality, reduce unnecessary cost waste.
As it is shown in figure 1, the present invention copper core 1 that includes being provided with internal thread hole 11 and the lead base 2 of parcel copper core 1 hypomere, described copper core 1 hypomere external diameter is less than epimere external diameter, and casting, stamping forming lead base 2 external diameter are identical with the external diameter of copper core 1 epimere；Described copper core 1 hypomere outer peripheral face is provided with multiple A groove 13；Described lead base 2 outer peripheral face is provided with B groove 21, the deep 1-3mm of B groove, wide 2-5mm, and the outer peripheral face of described copper core 1 epimere is provided with C groove 12.
Table 1 present configuration copper core electrode post M6 torsional moment test table, wherein: a is the copper core electrode post of non-prefluxing casting, and b is the copper core electrode post that a carries out lead base punching press again；C is the copper core electrode post of prefluxing casting, and d is the copper core electrode post that c carries out lead base punching press again.
Table 1
| Copper core structure | Copper core torsional moment (N m) |
| a | 12.5 |
| b | 16.6 |
| c | 15.1 |
| d | 20.4 |
Table 2 is ordinary copper core pole M8 torsional moment test table (copper core upper-lower section external diameter is identical, sees Fig. 3), and wherein e is the copper core electrode post of non-prefluxing casting, and f is the copper core electrode post of prefluxing casting, and g is the copper core electrode post that f carries out lead base punching press again.
Table 2
| Copper core structure | Copper core torsional moment (N m) |
| e | 15.7 |
| f | 29.6 |
| g | 33.8 |
Test result illustrates that prefluxing of the present invention effectively increases copper core and the adhesion of lead base and torsion again to lead base punching press.
Claims (6)
1. the preparation method of a high intensity copper core electrode post, it is characterised in that include
Step 1: dissolve lead pig, lead liquid temp is maintained at 450～480 DEG C；
Step 2: casting die is heated to 100～150 DEG C；
Step 3: inorganic flux is coated with the contact surface contacted with lead liquid all over copper core hypomere desire；
Step 4: the copper core of coated inorganic flux is placed in baking oven and be heated to 90～120 DEG C, make scaling powder dry completely；
Step 5: copper core is preheated to 60～90 DEG C of mould cavities putting in step 2, closes tight mould, dips the lead liquid of step 1, pours in mould, after lead liquid cooled and solidified, opens mould, takes out the copper core electrode post cast；
Step 6: copper core electrode post step 5 cast is preheated to 50～80 DEG C of die cavitys putting into diel, carries out 1-2 ton forcing press punch forming to copper core electrode post hypomere lead base position.
The preparation method of a kind of high intensity copper core electrode post the most according to claim 1, it is characterised in that: lead pig described in step 1 puts into before dissolving, and is first carried out, and then moist lead pig is placed on lead stove 15～20min and dries.
The preparation method of a kind of high intensity copper core electrode post the most according to claim 1 and 2, it is characterised in that: when step 3 is coated with inorganic flux in copper core, copper core upper end is non-can not inorganic flux in snearing with lead liquid contact surface.
A kind of high intensity copper core electrode post that the most according to claim 1, preparation method obtains, including the copper core (1) and the lead base (2) of parcel copper core hypomere that are provided with internal thread hole (11), it is characterized in that: described copper core (1) hypomere external diameter be less than epimere external diameter, casting, stamping forming lead base (2) external diameter identical with the external diameter of copper core (1) epimere.
A kind of high intensity copper core electrode post the most according to claim 4, it is characterised in that: described copper core (1) hypomere outer peripheral face is provided with multiple A groove (13).
6. according to a kind of high intensity copper core electrode post described in claim 4 or 5, it is characterised in that: described lead base (2) outer peripheral face is provided with B groove (21), and/or the outer peripheral face of described copper core epimere is provided with C groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410123052.8A CN103872284B (en) | 2014-03-31 | 2014-03-31 | A kind of high intensity copper core electrode post preparation method and product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410123052.8A CN103872284B (en) | 2014-03-31 | 2014-03-31 | A kind of high intensity copper core electrode post preparation method and product |
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| CN103872284A CN103872284A (en) | 2014-06-18 |
| CN103872284B true CN103872284B (en) | 2016-08-17 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2019041175A1 (en) * | 2017-08-30 | 2019-03-07 | 浙江天能电池(江苏)有限公司 | Stamping device for terminal post |
| CN112687885A (en) * | 2020-11-17 | 2021-04-20 | 江苏夕川科技有限公司 | Cast-welding method for lead pole with copper core |
| CN113809483B (en) * | 2021-08-23 | 2023-08-04 | 天能电池集团股份有限公司 | Terminal with copper core having anti-torsion function and preparation method |
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| JP2006309983A (en) * | 2005-04-26 | 2006-11-09 | Furukawa Battery Co Ltd:The | Lead-acid battery |
| CN201149880Y (en) * | 2008-02-02 | 2008-11-12 | 张祥茂 | Accumulator terminal |
| CN202839825U (en) * | 2012-09-10 | 2013-03-27 | 超威电源有限公司 | Terminal post of lead-acid storage battery |
| CN202917571U (en) * | 2012-11-22 | 2013-05-01 | 山东圣阳电源股份有限公司 | Terminal sealing system for tubular colloid lead-acid battery |
| CN203288710U (en) * | 2013-06-26 | 2013-11-13 | 浙江宝仕电源有限公司 | Plumbic acid storage battery |
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| JP2006309983A (en) * | 2005-04-26 | 2006-11-09 | Furukawa Battery Co Ltd:The | Lead-acid battery |
| CN201149880Y (en) * | 2008-02-02 | 2008-11-12 | 张祥茂 | Accumulator terminal |
| CN202839825U (en) * | 2012-09-10 | 2013-03-27 | 超威电源有限公司 | Terminal post of lead-acid storage battery |
| CN202917571U (en) * | 2012-11-22 | 2013-05-01 | 山东圣阳电源股份有限公司 | Terminal sealing system for tubular colloid lead-acid battery |
| CN203288710U (en) * | 2013-06-26 | 2013-11-13 | 浙江宝仕电源有限公司 | Plumbic acid storage battery |
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| CN103872284A (en) | 2014-06-18 |
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