CN1041945C - Technology for battery impact bar by laser treatment - Google Patents

Technology for battery impact bar by laser treatment Download PDF

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Publication number
CN1041945C
CN1041945C CN94111778A CN94111778A CN1041945C CN 1041945 C CN1041945 C CN 1041945C CN 94111778 A CN94111778 A CN 94111778A CN 94111778 A CN94111778 A CN 94111778A CN 1041945 C CN1041945 C CN 1041945C
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CN
China
Prior art keywords
impact bar
battery impact
tempering
battery
laser
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Expired - Fee Related
Application number
CN94111778A
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Chinese (zh)
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CN1113959A (en
Inventor
丁培道
石功奇
刘江龙
周守则
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Chongqing University
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Chongqing University
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Priority to CN94111778A priority Critical patent/CN1041945C/en
Publication of CN1113959A publication Critical patent/CN1113959A/en
Application granted granted Critical
Publication of CN1041945C publication Critical patent/CN1041945C/en
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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
    • H01M50/552—Terminals characterised by their shape
    • H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
    • H01M50/56—Cup shaped terminals
    • 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

Abstract

The present invention relates to a laser processing technology for battery impact bars, which belongs to the processing technology for laser surface enhanced battery impact bar work tapes. The technology comprises the following steps: removing oil stains on the battery impact bars; selecting the laser processing manner of the battery impact bars, and determining the laser processing technological parameters and the scanning start points of the battery impact bars; processing the battery impact bars by lasers; cooling and tempering the battery impact bars processed by lasers, and cooling down to room temperature. The battery impact bars processed by the present invention have no deformation, the toughness and the abrasive resistance of the battery impact bars are enhanced, and the service life of the battery impact bars is greatly prolonged.

Description

Technology for battery impact bar by laser treatment
The invention belongs to the technology of laser surface intensified battery impact bar work zone.
Existing battery impact bar is the stamping forming punch of whole zinc tube.It is to be made by W18Cr4V1 or W6Mo5Cr4V2 rapid steel.Under the cold punching condition, dash about 2-3 ten thousand times mean life of rod.The whole nation more than 320 families of existing battery production factory produce about 25,000,000,000 of drying battery per year.Thereby improve and in the battery production industry, occupy very consequence the work-ing life of dashing rod.Battery impact bar in use, its flange work zone constantly is subjected at a high speed, powerful shock action, causes its cutting edge cracking thus and loses efficacy.At present, adopt the thermal treatment process of+three high temperings that quench to strengthen battery impact bar.The work-ing life of the battery impact bar of this art breading is lower, and its cutting edge is easy to crack, and is yielding in the heat treatment process.
The white shore of Chongqing mechanical investigations institute, on " metal heat treatmet " magazine of editing and publishing in 1986 in the Beijing Electromechanical Research Inst, " research of cold-punching mold Laser Heat Treating in China " paper of delivering does not relate to uses battery impact bar by laser treatment.
The present invention is intended at above-mentioned the deficiencies in the prior art, a kind of battery impact bar laser processing technique is provided, this technology can make the battery impact bar after the processing not have distortion, and can improve the obdurability and the wear resistance of its cutting edge, thereby increases substantially the work-ing life of battery impact bar.
Technical scheme of the present invention is to utilize light laser rapid heating battery to dash the cutting edge of holding in both hands.Make it from cooling or pressure cool to room temperature then.Again it is carried out high tempering, cooling.
The technology that realizes the laser reinforcing battery impact bar is by earlier the rapid steel bar being machined to battery impact bar, when scanning first, light laser dashes the location, edge, termination of rod at this, make cutting edge rapid heating and cooling with laser scanning, the high tempering that rod carries out 1-3 time once more that dashes after the laser treatment is formed towards excellent work zone.Its technology is:
1) greasy dirt of removal battery impact bar termination.Select gasoline or kerosene or dehydrated alcohol for use, at room temperature deoil, time 0.5-5 minute.
2) laser treatment has following three kinds of different modes
A. when HRC 〉=64, with carbonaceous black agent melanism battery impact bar cross cut end (of a beam).Melanism is coated with layer height 0.01-10 μ mm, width 2.0-5.0mm.
B. when HRC 〉=65, with the tackiness agent mixing W12Cr4V4Co5 super-hard high-speed steel powder of carbon containing-hydrogen.It is covered on the surface, work zone of battery impact bar.Its tectum height 10 -2-10 1Mm, width 2.0-5.0mm.
C. when HRC 〉=66, the battery impact bar that deoils when light laser is handled, is directly sent into the W12Cr4V4Co5 powder with powder feeder to the molten bath.Powder feed rate 0.01-100g/ second.
3) battery impact bar is placed on the working face of laser machine.Move this processing machine, make laser beam aim at certain point on the edge line of battery impact bar termination.This point is the sweep starting point of light laser.
4) start the continuously adjustable laser apparatus of output rating, make laser beam pass through direct alignment scanning starting point after the beam treatment system, from then on begin scanning.By the light laser rapid scanning, the battery impact bar termination is strengthened.Its laser power 10 2-10 4W, sweep velocity 10 -2-10 2Mm/ second, facula area 10 0-10 2Mm 2The lasing time 10 -3-10 0Second.Adjust laser power and defocusing amount and obtain optimal processing parameter: laser power density 10 3-10 5W/cm 2, defocusing amount 0.1-10.0mm.
5) allow the battery impact bar of LASER HEATING be as cold as room temperature certainly.Or be that the pressurized air of 0.1-10MPa is forced cooling with pressure.Compressed-air actuated jet area 0.5-20mm 2, it is apart from laser scanning point 5-50mm.
6) again battery is dashed handful according to identical tempering process continuous high temperature tempering 1-3 time.Its tempering process is: tempering temperature 350-650 ℃, and tempering rate of heating 10 0-10 2℃/second, soaking time 0.5-5.0 hour, speed of cooling 10 0-10 2℃/second.
The present invention can make battery impact bar not have distortion, and the obdurability and the wear resistance of the cutting edge of battery impact bar improve.Battery after the present invention's processing dashes the work-ing life of holding in both hands than the battery impact bar before handling and improves more than 2-5 times.Test-results of the present invention is as follows:
Laser hardening layer depth: 0.2-2.0mm
Laser hardening layer width: 2.0-5.0mm
Laser hardening layer hardness: HRC64-70
(the hardness of laser treatment: HRC63 is not following).
Accompanying drawing 1 is a battery impact bar by laser treatment synoptic diagram of the present invention.Wherein 1 is powder feeder, and 2 is battery impact bar, and 3 is laser machine, and 4 is laser beam, and 5 is laser apparatus, and 6 is battery impact bar termination (cutting edge), and 7 is the laser beam treatment system.
Embodiment 1
Battery dashes holds in both hands material: the W12Re rapid steel.The rapid steel bar of Φ 35 is machined to Φ 31 * 225mm and dashes rod.The rod of handling that dashes is placed on the laser process machine with deoiling.On excellent termination, cover the powder reinforced material of one deck W12Cr4V4Co5.Tectum exceeds surperficial 0.5mm, its width 3.0mm.Laser power 1400W, sweep velocity 15mm/ second, 0.21 second laser treatment time, spot diameter 3.2mm, promptly laser power density 1.7 * 10 4W/cm 2, defocusing amount 2.50mm.Excellent through dashing of laser treatment 560 ℃ of tempering, 70 ℃/second of tempering rate of heating, soaking time 1.5 hours is chilled to room temperature, and its speed of cooling is 50 ℃/second.The continuous tempering of same process 3 times.The hardness that records stiffened region with sclerometer is HRC65, its matrix HRC62.Under cold conditions punching press condition, the battery impact bar life-span of laser treatment is 8.25 ten thousand times.
Embodiment 2
Battery impact bar material: W3Mo2Cr4VSi rapid steel.The rapid steel bar of Φ 36 is machined to Φ 31 * 225mm and dashes rod.Make its cutting edge melanism with carbon black. laser processing technique: laser power 1200W, sweep velocity 45mm/ second, 0.06 second laser treatment time, spot diameter 3.0mm, promptly laser power density 1.6 * 10 4W/cm 2, defocusing amount 5.0mm.Excellent through dashing of laser treatment 560 ℃ of tempering, 60 ℃/second of tempering rate of heating, soaking time 2.0 hours is chilled to room temperature, and speed of cooling is 50 ℃/second.The continuous tempering of same process 3 times.After the laser treatment, the hardness of its hardened zone is HRC64, and its matrix is HRC61.Under cold conditions punching press condition, the battery impact bar life-span of laser treatment is 5.11 ten thousand times.

Claims (3)

1. technology for battery impact bar by laser treatment, comprise the greasy dirt of removing on the battery impact bar, determine the sweep starting point of battery impact bar by laser treatment, determine the technology of battery impact bar by laser treatment, with laser apparatus battery impact bar is handled, cooled off, to being chilled to room temperature after the battery impact bar temper after the laser treatment; It is characterized in that:
1.1 select the laser treatment battery to dash the mode of holding in both hands:
1.1.1. when the Rockwell hardness of battery impact bar more than or equal to 64 the time, with this battery impact bar cross cut end (of a beam) of carbonaceous black agent melanism, its melanism thick coating 0.01-10um, width 2.0-5.0mm;
1.1.2. when the Rockwell hardness of battery impact bar more than or equal to 65 the time, with carbon containing-hydrogen tackiness agent mixings tungsten 12 chromium 4 vanadium 4 cobalts 5 super-hard high-speed steel powder, it is covered battery dashes on the handful surface, work zone its tectum height 10 -2-10 1Mm, width 2.0-5.0mm;
1.1.3. when the Rockwell hardness of battery impact bar more than or equal to 66 the time, directly send into tungsten 12 chromium 4 vanadium 4 cobalts 5 powder with the powder feed rate of 0.01 Grams Per Second-100 Grams Per Second to the molten bath with powder feeder;
1.2 the processing parameter of battery impact bar by laser treatment is:
Laser power: 10 2-10 4W,
Power density: 10 3-10 5W/cm 2,
Defocusing amount: 0.1-10.0mm,
Sweep velocity: 10 -2-10 2Mm/ second,
Facula area: 10 0-10 2Mm 2,
Action time: 10 -3-10 0Second;
1.3 the cooled battery impact bar of laser treatment is carried out temper:
Times of tempering: with the continuous tempering of identical tempering process 1-3 time,
Tempering temperature: 350-650 ℃,
Tempering rate of heating: 10 0-10 2℃/second,
Soaking time: 0.5-5.0 hour.
2. technology for battery impact bar by laser treatment according to claim 1 is characterized in that with the battery impact bar laser processing technique that tungsten 12 rare earth rapid steel are made being:
2.1 on the battery impact bar termination, cover the tungsten 12 chromium 4 vanadium 4 cobalts 5 powder reinforced materials that one deck exceeds its surperficial 0.5mm;
2.2 the laser processing technique parameter is:
Laser power: 1400W,
Power density: 1.7 * 10 4W/cm 2,
Defocusing amount: 2.50mm,
Sweep velocity: 15mm/ second,
Facula area: 8.04mm 2,
Action time: 0.21 second;
2.3 cooling back tempering:
Tempering temperature: 560 ℃,
The tempering rate of heating: 70 ℃/second,
Soaking time: 1.5 hours,
Speed of cooling: 50 ℃/second,
With the continuous tempering of identical tempering process 3 times.
3. technology for battery impact bar by laser treatment according to claim 1 is characterized in that the laser processing technique of the battery impact bar that tungsten 3 molybdenums 2 chromium 4 vanadium silicon rapid steel are made is:
3.1 make battery impact bar cutting edge melanism with carbon black;
3.2 the laser processing technique parameter is:
Laser power: 1200W,
Power density: 1.6 * 10 4W/cm 2,
Defocusing amount: 5.0mm,
Sweep velocity: 45mm/ second,
Facula area: 7.07mm 2,
Action time: 0.06 second;
3.3 cooling back tempering:
Tempering temperature: 560 ℃,
The tempering rate of heating: 60 ℃/second,
Soaking time: 2.0 hours,
Speed of cooling: 50 ℃/second,
With the continuous tempering of identical tempering process 3 times.
CN94111778A 1994-06-02 1994-06-02 Technology for battery impact bar by laser treatment Expired - Fee Related CN1041945C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN94111778A CN1041945C (en) 1994-06-02 1994-06-02 Technology for battery impact bar by laser treatment

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Application Number Priority Date Filing Date Title
CN94111778A CN1041945C (en) 1994-06-02 1994-06-02 Technology for battery impact bar by laser treatment

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CN1113959A CN1113959A (en) 1995-12-27
CN1041945C true CN1041945C (en) 1999-02-03

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107621803A (en) * 2017-08-31 2018-01-23 太仓贝斯特机械设备有限公司 The auto peeling machine and its automation control method of a kind of precise positioning

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1062312A (en) * 1990-12-12 1992-07-01 王福和 Method for making punch pin of zinc shell of electric cell

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1062312A (en) * 1990-12-12 1992-07-01 王福和 Method for making punch pin of zinc shell of electric cell

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