WO2014142380A1 - Structure de refroidissement de moule de coulée sur barrette pour batterie - Google Patents

Structure de refroidissement de moule de coulée sur barrette pour batterie Download PDF

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Publication number
WO2014142380A1
WO2014142380A1 PCT/KR2013/002432 KR2013002432W WO2014142380A1 WO 2014142380 A1 WO2014142380 A1 WO 2014142380A1 KR 2013002432 W KR2013002432 W KR 2013002432W WO 2014142380 A1 WO2014142380 A1 WO 2014142380A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling
mold
strap
straps
cast
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.)
Ceased
Application number
PCT/KR2013/002432
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English (en)
Korean (ko)
Inventor
최은모
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MUJIN SERVICE CO LTD
Original Assignee
MUJIN SERVICE CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MUJIN SERVICE CO LTD filed Critical MUJIN SERVICE CO LTD
Publication of WO2014142380A1 publication Critical patent/WO2014142380A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B22C9/065—Cooling or heating equipment for moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C19/00—Components or accessories for moulding machines
    • B22C19/04—Controlling devices specially designed for moulding machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons

Definitions

  • the present invention relates to a cooling structure of a cast-on-strap mold for batteries, and more particularly, to equalize the cooling temperature of each part of the strap during molding to reduce the difference in crystal structure of each part of the strap to minimize cracking caused by stress.
  • the present invention relates to a cooling structure of a cast-on strap mold for a battery, which can double the productivity by minimizing the cooling time of the strap.
  • lead-acid batteries are manufactured by cast-on-strap (COS) molds and are melted on both sides of the cast-on-strap molds (hereinafter referred to as 'molds').
  • COS cast-on-strap
  • the strap B is formed by the mold 10 as shown in FIG. 1, and a cooling conduit for cooling the strap B is formed in the conventional mold 10, but the center of the mold 10 is formed.
  • the central cooling pipe passage 12 and the lower cavity cooling pipe path 13 formed at the lower end of the strap cavity 11 passing through the structure is formed.
  • the strap B which is usually composed of the horizontal portion B1, the vertical portion B2, and the vertical portion B3, is cast in the strap cavity 11 formed on the upper portion of the mold 10, so that the vertical portion B3 is Cooled in the place adjacent to the runner block A, the horizontal portion B1 is the state closest to the central cooling conduit 12 of the mold 10, and the vertical portion B2 is the runner block A and the mold 10. ) Is cooled between.
  • the runner block A into which the lead is introduced has a temperature of about 420 to 480 ° C.
  • the mold 10 in which the cooling conduits are formed has a low temperature of about 90 to 140 ° C., so that the horizontal part B1 of the strap B is formed.
  • the vertical portion B2 and the vertical portion B3 are cooled at different temperatures.
  • the horizontal portion B1 is closest to the central cooling conduit 12 of the coldest mold 10 and is cooled the fastest, and the vertical portion B3 is adjacent to the hottest runner block A and is cooled most slowly.
  • the vertical portion B2 is cooled at an intermediate temperature.
  • the problem of the conventional cast-on-strap mold as described above is that different crystals are formed by dendrite at the boundary portions of the horizontal portion B1, the vertical portion B2, and the vertical portion B3 of the strap B.
  • the tissue is formed, the boundary portion (C) of each of the different crystal tissues is very fragile state, when the continuous stress is applied to this portion (C) has a crack that will inevitably crack.
  • the horizontal portion B1 of the strap B adjacent to the mold 10 in the cold state cools the fastest (about 25 seconds) and the vertical portion B3 of the strap B adjacent to the hottest runner block A. Cools most slowly (about 30 seconds) and eventually releases from the strap cavity with all parts of the strap B completely cooled, waiting for the vertical portion B3 to cool completely. At this time, it takes about 30 seconds to completely cool the vertical portion B3, and if the cooling time is further reduced, more productivity can be expected. Therefore, the need for a method to solve this problem is an urgent point.
  • the details of the strap that is, the horizontal portion, the vertical portion, and the vertical portion should be cooled within a uniform temperature range, and moreover than the conventional cooling time.
  • Productivity should be improved by enabling faster cooling.
  • the present invention forms an extension on the side of the mold body adjacent to the runner block, and forms a boundary cooling channel in the extension to help cool the vertical portion of the strap.
  • an intermediate cooling conduit between the central cooling conduit and the lower cavity cooling conduit to help cool the transverse and vertical boundaries of the strap and to allow for faster cooling of the strap.
  • the effect of the present invention as described above is to minimize the occurrence of cracks due to stress by reducing the difference in crystal structure of each part of the strap by equalizing the cooling temperature of each part of the strap during molding the strap.
  • the present invention is to maintain a uniform temperature even in the air to induce the cooling of the strap while maintaining the overall balance even if lead is introduced into the strap cavity, in particular to minimize the cooling time of the strap tremendous productivity effect (in the case of the present invention)
  • the strap cooling time is about 12 seconds, which can be expected to increase productivity by almost two to three times at the same time.
  • FIG. 1 is a reference cross-sectional view showing a cooling structure of a conventional cast on strap mold for a battery.
  • Figure 2 is a reference perspective view for showing the structure of the strap formed by the cast on strap mold for the battery.
  • Figure 3 is a perspective view for showing a cooling structure of the cast on strap mold for a battery according to an embodiment of the present invention.
  • FIG. 4 is a plan view of FIG.
  • FIG. 5 is a reference diagram in a state of cutting away a portion of FIG. 3;
  • FIG. 6 is a cross-sectional view taken along the line V-V in FIG. 4.
  • Figure 7 is a cross-sectional view for showing a schematic connection structure of the cooling conduit in accordance with an embodiment of the present invention.
  • a runner block for supplying molten lead is formed on both sides, and a strap cavity for filling the lead is formed at an upper side thereof, and a mold main body having a central cooling conduit for cooling and a lower cooling conduit for cooling the inside of the mold body;
  • a cast-on-strap mold for a battery having a cooling conduit connecting tube connected to all cooling conduits, wherein the extension is formed on a side of the mold body adjacent to the runner block, and a boundary cooling conduit is formed inside the extension.
  • an intermediate cooling conduit is formed between the mold central cooling conduit and the cavity lower cooling conduit so that uniform cooling and faster cooling of each part of the strap is possible.
  • FIG. 3 is a perspective view illustrating a cooling structure of a cast-on strap mold for a battery according to an exemplary embodiment of the present invention
  • FIG. 4 is a plan view of FIG. 3
  • FIG. 5 is a reference diagram of a part of FIG. 6 is a cross-sectional view taken along line VV of FIG. 4
  • FIG. 7 is a cross-sectional view illustrating a schematic connection structure of a cooling conduit according to an embodiment of the present invention.
  • the structure of the strap in the present invention is described as a horizontal portion, a vertical portion, a vertical portion, but is not limited to the form, it should be noted that in the drawings, the same components or parts are represented by the same reference numerals as possible. . In addition, in describing the present invention, a detailed description of related known functions or configurations will be omitted in order not to obscure the subject matter of the present invention.
  • a runner block A is formed at both sides to supply molten lead, and a strap cavity 110 is formed at the top to fill the lead.
  • a central cooling line 120 and a lower bottom cooling line 130 for cooling are formed therein.
  • the mold body 100 having a) and a cooling pipe passage connecting tube 160 for connecting all the cooling pipes are coupled to the bottom of the mold body 100, the cast-on-strap mold for the battery,
  • the expansion unit 101 is formed on the side of the mold main body 100 adjacent to the runner block A, but the boundary cooling pipe line 140 is formed inside the expansion unit 101, and the mold central cooling pipe line 120 is formed. And an intermediate cooling conduit 150 formed between the cavity lower cooling conduit 130 and a configuration for enabling uniform cooling and faster cooling of each portion of the strap B.
  • the intermediate cooling conduit 150 is in a vertical state, and branched cooling conduits 151a may be formed at upper and middle portions of the intermediate cooling conduit 150.
  • the branched cooling conduit 151a passes through the intersection of the horizontal portion B1 and the vertical portion B2 of the strap B when the mold body 100 is viewed in plan as shown in FIG. 4 for more effective cooling. It is preferable to form inclined diagonally so as to.
  • All the cooling conduits are connected to each other by the cooling conduit connecting tube 160 formed under the mold 100 as shown in FIG. 7, and the cooling conduit connecting tube 160 is connected to the cooling water inlet and outlet 170, respectively. Connected to allow cooling water to circulate through all cooling conduits.
  • mold lower plate 100a is coupled to a lower portion of the mold body 100 by known fastening means.
  • the present invention forms an expansion portion 101 for further extending the gap with the runner block A on the side of the mold main body 100, and forms a boundary cooling pipe passage 140 inside the expansion portion 101.
  • the strap B is cooled to a uniform temperature and rapidly at about the same time.
  • the difference in crystal structure can be significantly reduced, which in turn can minimize the occurrence of cracks caused by stress in the strap (B).
  • the present invention can significantly shorten the cooling rate of the strap (B) by increasing the cooling rate of the vertical portion (B3) of the strap (B), which takes a relatively long time by the optimum cooling conditions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

La présente invention concerne une structure de refroidissement d'un moule de coulée sur barrette (procédé COS) pour une batterie, la structure de refroidissement comprenant un corps principal de moule ayant des blocs mobiles sur les deux côtés de celui-ci pour fournir du plomb fondu, ayant une cavité de barrette sur une partie supérieure de celui-ci pour remplir le plomb fondu, et ayant un canal de refroidissement de moule central et un canal de refroidissement de cavité inférieur sur un côté interne de celui-ci pour un refroidissement ; et une plaque de moule inférieure ayant un tuyau de connexion de canal de refroidissement couplé au côté inférieur du corps principal de moule pour connecter la totalité des canaux de refroidissement, une partie d'extension étant formée sur une surface latérale du corps principal de moule, qui est adjacente au bloc mobile, un canal de refroidissement frontière étant formé dans la partie d'extension, et un canal de refroidissement intermédiaire étant formé entre le canal de refroidissement de moule central et le canal de refroidissement de cavité inférieur, de telle sorte que chaque partie de barrettes est refroidie uniformément et plus rapidement. En outre, la présente invention possède un effet en ce que la génération de fissures provoquée en raison de contraintes peut être rendue minimale par réduction d'une différence entre des structures cristallines des parties des barrettes en permettant aux parties des barrettes d'avoir une température de refroidissement uniforme lorsque les barrettes sont formées. En outre, la présente invention est très utile en ce qu'une température uniforme peut être maintenue même en attente, de telle sorte que même lorsque le plomb fondu est introduit dans la cavité de barrette, le refroidissement des barrettes peut être induit alors qu'un équilibre global est maintenu, et particulièrement, un effet d'excellente productivité peut être attendu en rendant minimale une période de refroidissement des barrettes (dans le cas de la présente invention, la période de refroidissement des barrettes est d'environ 12 secondes, la productivité est donc prévue pour augmenter de deux fois ou plus durant le même temps).
PCT/KR2013/002432 2013-03-11 2013-03-25 Structure de refroidissement de moule de coulée sur barrette pour batterie Ceased WO2014142380A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020130025757A KR101278667B1 (ko) 2013-03-11 2013-03-11 배터리용 캐스트 온 스트랩 몰드의 냉각 구조
KR10-2013-0025757 2013-03-11

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WO2014142380A1 true WO2014142380A1 (fr) 2014-09-18

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KR101628802B1 (ko) 2014-11-14 2016-06-09 (주)무진서비스 축전지의 몰딩 장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100620411B1 (ko) * 2004-09-13 2006-09-12 김태겸 플러그 스트랩 주조용 금형
KR20080109820A (ko) * 2006-04-06 2008-12-17 티비에스 엔지니어링 리미티드 배터리 그룹 몰딩 장치 및 방법
KR100944130B1 (ko) * 2002-01-31 2010-02-24 티에이치티 프레시즈 인코퍼레이티드 반고체 몰딩 방법
KR101051193B1 (ko) * 2008-08-26 2011-07-21 한국항공우주산업 주식회사 헬리콥터 로터 블레이드 제조용 몰드 조립체

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100944130B1 (ko) * 2002-01-31 2010-02-24 티에이치티 프레시즈 인코퍼레이티드 반고체 몰딩 방법
KR100620411B1 (ko) * 2004-09-13 2006-09-12 김태겸 플러그 스트랩 주조용 금형
KR20080109820A (ko) * 2006-04-06 2008-12-17 티비에스 엔지니어링 리미티드 배터리 그룹 몰딩 장치 및 방법
KR101051193B1 (ko) * 2008-08-26 2011-07-21 한국항공우주산업 주식회사 헬리콥터 로터 블레이드 제조용 몰드 조립체

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