JPH04282562A - Manufacture of lattice unit for lead-acid battery - Google Patents
Manufacture of lattice unit for lead-acid batteryInfo
- Publication number
- JPH04282562A JPH04282562A JP3072534A JP7253491A JPH04282562A JP H04282562 A JPH04282562 A JP H04282562A JP 3072534 A JP3072534 A JP 3072534A JP 7253491 A JP7253491 A JP 7253491A JP H04282562 A JPH04282562 A JP H04282562A
- Authority
- JP
- Japan
- Prior art keywords
- lead
- sulfur
- lattice
- alloy
- acid battery
- 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
Links
- 239000002253 acid Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 29
- 239000011593 sulfur Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 9
- 229910000796 S alloy Inorganic materials 0.000 claims abstract description 8
- 229910001245 Sb alloy Inorganic materials 0.000 claims description 2
- 239000002140 antimony alloy Substances 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract description 15
- 229910052787 antimony Inorganic materials 0.000 abstract description 7
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 6
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 229910000978 Pb alloy Inorganic materials 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 1
- 208000032953 Device battery issue Diseases 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000002142 lead-calcium alloy Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002141 low-antimony alloy Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003860 storage 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)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は鉛蓄電池用格子体の製造
方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a grid for lead-acid batteries.
【０００２】0002
【従来の技術】従来より鉛蓄電池用格子にはアンチモン
約３〜６重量％（以下、％で示す）を含む鉛アンチモン
系合金が用いられている。このような格子を用いた蓄電
池は深い充放電サイクルでは優れた性能を示すものの、
アンチモンが負極に析出して水素過電圧が低下し、自己
放電量や減液量が増加するという欠点がある。BACKGROUND OF THE INVENTION Conventionally, lead-antimony based alloys containing about 3 to 6% by weight of antimony (hereinafter expressed as %) have been used for grids for lead-acid batteries. Although storage batteries using such grids show excellent performance during deep charge/discharge cycles,
There is a drawback that antimony is deposited on the negative electrode, reducing the hydrogen overvoltage and increasing the amount of self-discharge and liquid loss.
【０００３】近年、鉛蓄電池を無保守化する要求が強く
なってきているが、格子に鉛カルシウム系合金を用いた
場合には、深い充放電サイクルや高温下での使用に弱い
という問題がある。そこでアンチモン量を少なくした、
いわゆる低アンチモン合金が提案されてきた。しかしな
がら格子中のアンチモン量を減少させた場合、特にアン
チモン量を３％以下にすると、合金結晶粒が肥大化して
湯流れが悪くなり均一な格子を形成するのが困難になる
。結晶構造的に不均一な格子は、鋳造時に格子割れが発
生して生産性が著しく低下するばかりでなく、振動や腐
蝕により格子が容易に破断して電池不良の原因となった
りする。[0003] In recent years, there has been a strong demand for maintenance-free lead-acid batteries, but when lead-calcium alloys are used for the lattice, there is a problem that they are susceptible to deep charge/discharge cycles and use at high temperatures. . Therefore, the amount of antimony was reduced.
So-called low antimony alloys have been proposed. However, when the amount of antimony in the lattice is reduced, especially when the amount of antimony is reduced to 3% or less, the alloy crystal grains become enlarged, the flow of the metal becomes poor, and it becomes difficult to form a uniform lattice. A lattice with a non-uniform crystal structure not only causes lattice cracks during casting and significantly reduces productivity, but also causes the lattice to easily break due to vibration or corrosion, resulting in battery failure.
【０００４】この対策として、合金中にイオウを添加す
ることが提案されている。これはイオウの鉛中への溶解
度が小さく、凝固時に結晶核となるので結晶粒が微細化
し、半溶融状態での合金の湯流れを改善できることに着
目してのことである。従って、上記のような格子割れ等
を無くすることができるのである。ちなみにイオウ添加
量と結晶粒径との関係を図４に示す。As a countermeasure to this problem, it has been proposed to add sulfur to the alloy. This is based on the fact that sulfur has a low solubility in lead and becomes crystal nuclei during solidification, making the crystal grains finer and improving the flow of the alloy in a semi-molten state. Therefore, it is possible to eliminate lattice cracks and the like as described above. Incidentally, FIG. 4 shows the relationship between the amount of sulfur added and the crystal grain size.
【０００５】従来、イオウを添加する方法としては、鉛
イオウ合金を合金調合時に投入したり鋳造釜に添加した
りする等の方法が取られている。Conventionally, sulfur has been added by adding a lead-sulfur alloy at the time of alloy preparation or adding it to a casting pot.
【０００６】[0006]
【発明が解決しようする課題】しかし調合釜や鋳造釜の
温度は約４００度Ｃ程度に設定されるので、イオウの溶
解度は低い（図３参照）。また、これらの釜温度を上げ
たとしても、ポンプアップ工程にかかる輸送管中での温
度低下によりイオウの溶解度が低下してしまう。これら
のことから、従来の方法には、十分な量のイオウを含む
鉛蓄電池用格子体を製造するのが困難であるという問題
点が有った。さらに溶解を繰り返すことにより溶融鉛の
酸化等でイオウが飛散してしまうという問題も有った。[Problems to be Solved by the Invention] However, since the temperature of the mixing pot and casting pot is set at about 400 degrees Celsius, the solubility of sulfur is low (see FIG. 3). Moreover, even if the temperature of these pots is raised, the solubility of sulfur will decrease due to the temperature drop in the transport pipe during the pump-up process. For these reasons, the conventional method has had the problem that it is difficult to manufacture a grid for lead-acid batteries containing a sufficient amount of sulfur. Furthermore, there was a problem in that sulfur was scattered due to oxidation of the molten lead due to repeated melting.
【０００７】本発明はこの様な問題点を解決するために
なされたものであり、その目的とするところは、所定量
のイオウを含み結晶粒が均一な格子を得る鉛蓄電池用格
子体の製造方法を提供するにある。The present invention was made to solve these problems, and its purpose is to manufacture a lattice for lead-acid batteries that contains a predetermined amount of sulfur and has a uniform crystal grain lattice. We are here to provide you with a method.
【０００８】[0008]
【課題を解決するための手段】そこで本発明は、鉛アン
チモン系合金を用いた鉛蓄電池用格子体の製造方法にお
いて、注湯しゃくの中にイオウ又は鉛イオウ合金を投入
し溶解させることにより所定量のイオウを含有する溶融
鉛を得る工程と、注湯しゃく中の前記溶融鉛を鋳型に注
湯することにより所定量のイオウを含有する格子体を形
成する工程とを有し、前記記載順に行うものである鉛蓄
電池用格子体の製造方法により前記課題を解決せんとす
るものである。[Means for Solving the Problems] Accordingly, the present invention provides a method for manufacturing a lead-acid battery lattice using a lead-antimony alloy, in which sulfur or a lead-sulfur alloy is poured into a pouring sump and melted. The method includes a step of obtaining molten lead containing a certain amount of sulfur, and a step of forming a lattice body containing a predetermined amount of sulfur by pouring the molten lead in a pouring sump into a mold, in the order described above. The present invention aims to solve the above-mentioned problems by a method of manufacturing a lattice body for lead-acid batteries.
【０００９】[0009]
【作用】注湯しゃくの温度は高く（約５００度Ｃ）設定
されるので、ここにイオウ又は鉛イオウ合金を添加する
とイオウ溶解量の多い鉛合金を得ることができる。鉛合
金はただちに鋳型に流しこまれて格子体となるので、従
来のように鋳造釜から注湯しゃくまでの経路で生じてい
たイオウの逸失が無く、目的とする量のイオウを含有し
微細化した結晶粒を有する鉛蓄電池用格子体を確実に得
ることができる。[Operation] Since the temperature of the pouring sump is set high (approximately 500 degrees Celsius), adding sulfur or a lead-sulfur alloy thereto can yield a lead alloy with a large amount of dissolved sulfur. Since the lead alloy is immediately poured into the mold to form a lattice, there is no loss of sulfur, which occurs in the conventional path from the casting pot to the pouring sump, and it contains the desired amount of sulfur, making it finer. It is possible to reliably obtain a lattice body for a lead-acid battery having crystal grains that are uniform in size.
【００１０】0010
【実施例】本発明を図面に基づいて説明する。図１は鋳
造の模式図である。２は鋳造釜、３は輸送管、１は注湯
しゃくである。鋳造釜２で溶解された鉛合金４は輸送管
３を経て注湯しゃく１へ送られたのち、鋳型５へ注湯さ
れる。目的とするイオウ含有量に設定すべくイオウ又は
鉛イオウ合金を注湯しゃく１に添加することにより、本
発明の目的とする鋳造時に格子割れが発生したり振動や
腐蝕により格子が容易に切断したりすることのない鉛蓄
電池用格子体を得ることができる。本実施例の場合には
、注湯しゃくの中に鉛イオウ合金ペレットを添加し、溶
融鉛が完全に均一に成った後、鋳型へ注湯する方法をと
った。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained based on the drawings. FIG. 1 is a schematic diagram of casting. 2 is a casting pot, 3 is a transport pipe, and 1 is a pouring sump. The lead alloy 4 melted in the casting pot 2 is sent to the pouring tank 1 via the transport pipe 3, and then poured into the mold 5. By adding sulfur or a lead-sulfur alloy to the pouring sump 1 to set the desired sulfur content, lattice cracks will occur during casting, which is the object of the present invention, and the lattice will be easily cut due to vibration or corrosion. It is possible to obtain a lead-acid battery lattice body that does not cause damage. In the case of this example, lead-sulfur alloy pellets were added to the pouring sump, and after the molten lead became completely uniform, it was poured into the mold.
【００１１】本発明の１実施例によるものと従来方法に
よるものとの比較を図２に示す。同図で明らかなよう、
イオウ又は鉛イオウ合金を注湯しゃくに添加する方法を
採用することにより、目的とする量のイオウを正確に含
有する格子を得ることができた。この結果、鋳造時の不
良を１／４にも減少させる事が可能となった。同様に振
動や腐蝕により格子が容易に破断して生ずる蓄電池の不
具合をも減少させることができた。A comparison between one embodiment of the present invention and a conventional method is shown in FIG. As is clear from the figure,
By adding sulfur or a lead-sulfur alloy to the pouring sump, it was possible to obtain a lattice containing exactly the desired amount of sulfur. As a result, it has become possible to reduce defects during casting by as much as 1/4. Similarly, it has also been possible to reduce battery malfunctions caused by easy rupture of the grid due to vibration or corrosion.
【００１２】0012
【発明の効果】本発明による鉛蓄電池用格子体の製造方
法によれば、イオウ含有量を正確かつ容易にコントロ−
ルできるので、鋳造時に格子割れが発生して生産性が著
しく低下したり振動や腐蝕により格子が破断したりする
ことのない鉛蓄電池用格子体を提供することができるの
で、その工業的価値は大きい。[Effects of the Invention] According to the method of manufacturing a grid for lead-acid batteries according to the present invention, the sulfur content can be accurately and easily controlled.
This makes it possible to provide a lattice body for lead-acid batteries that does not significantly reduce productivity due to lattice cracks during casting, or rupture of the lattice due to vibration or corrosion, so its industrial value is high. big.
【図１】鋳造の模式図である。FIG. 1 is a schematic diagram of casting.
【図２】本発明の１実施例によるものと従来方法による
ものとの比較を示す図である。FIG. 2 is a diagram showing a comparison between one embodiment of the present invention and a conventional method.
【図３】鉛溶湯へのイオウの溶解度を示す図である。FIG. 3 is a diagram showing the solubility of sulfur in molten lead.
【図４】結晶粒径に及ぼすイオウの影響を示す図である
。FIG. 4 is a diagram showing the influence of sulfur on crystal grain size.
１ 注湯しゃく ２ 鋳造釜 ３ 輸送管 ４ 溶解鉛合金 ５ 鋳型 1 Pouring shank 2 Casting pot 3 Transport pipe 4 Molten lead alloy 5 Mold
Claims (1)
子体の製造方法において、注湯しゃく（１）の中にイオ
ウ又は鉛イオウ合金を投入し溶解させることにより所定
量のイオウを含有する溶融鉛を得る工程と、注湯しゃく
（１）中の前記溶融鉛を鋳型（５）に注湯することによ
り所定量のイオウを含有する格子体を形成する工程とを
有し、前記記載順に行うものである鉛蓄電池用格子体の
製造方法。Claim 1: A method for manufacturing a lead-acid battery grid using a lead-antimony alloy, in which sulfur or a lead-sulfur alloy is poured into a pouring sump (1) and dissolved, thereby containing a predetermined amount of sulfur. A step of obtaining molten lead; and a step of forming a lattice body containing a predetermined amount of sulfur by pouring the molten lead in the pouring sump (1) into the mold (5), in the order described above. A method of manufacturing a grid body for lead-acid batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3072534A JPH04282562A (en) | 1991-03-11 | 1991-03-11 | Manufacture of lattice unit for lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3072534A JPH04282562A (en) | 1991-03-11 | 1991-03-11 | Manufacture of lattice unit for lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04282562A true JPH04282562A (en) | 1992-10-07 |
Family
ID=13492113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3072534A Pending JPH04282562A (en) | 1991-03-11 | 1991-03-11 | Manufacture of lattice unit for lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04282562A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5216636A (en) * | 1975-07-29 | 1977-02-08 | Japan Storage Battery Co Ltd | Method of producing lattice for lead battery |
| JPS5316325A (en) * | 1976-07-29 | 1978-02-15 | Kubota Ltd | Method of automatically pouring molten material |
| JPS54122639A (en) * | 1978-03-15 | 1979-09-22 | Yaskawa Denki Seisakusho Kk | Additive supplying apparatus for molten metal pouring apparatus |
-
1991
- 1991-03-11 JP JP3072534A patent/JPH04282562A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5216636A (en) * | 1975-07-29 | 1977-02-08 | Japan Storage Battery Co Ltd | Method of producing lattice for lead battery |
| JPS5316325A (en) * | 1976-07-29 | 1978-02-15 | Kubota Ltd | Method of automatically pouring molten material |
| JPS54122639A (en) * | 1978-03-15 | 1979-09-22 | Yaskawa Denki Seisakusho Kk | Additive supplying apparatus for molten metal pouring apparatus |
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