JPH04135042A - Mold for lead alloy - Google Patents
Mold for lead alloyInfo
- Publication number
- JPH04135042A JPH04135042A JP25944990A JP25944990A JPH04135042A JP H04135042 A JPH04135042 A JP H04135042A JP 25944990 A JP25944990 A JP 25944990A JP 25944990 A JP25944990 A JP 25944990A JP H04135042 A JPH04135042 A JP H04135042A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- lead alloy
- engraved
- discharge machining
- surface roughness
- 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
- 229910000978 Pb alloy Inorganic materials 0.000 title claims abstract description 12
- 230000003746 surface roughness Effects 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 10
- 230000035699 permeability Effects 0.000 claims abstract description 10
- 238000009760 electrical discharge machining Methods 0.000 claims description 9
- 238000003754 machining Methods 0.000 abstract description 8
- 230000003578 releasing effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 238000003801 milling Methods 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007799 cork Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は鉛合金用鋳型、更に詳しくは鉛電池用格子体の
製造に用いる鋳造鋳型に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a mold for lead alloys, and more particularly to a casting mold used for manufacturing grid bodies for lead batteries.
〈従来の技術〉
従来の鉛電池用格子体を鋳造する鋳型は、その使用時に
コルク粉とニカワ又はコルク粉と水ガラスなどを水に懸
濁させて滑剤とし、これを鋳型彫刻面に吹付けて、保温
、離型性を図っている。<Conventional technology> When using conventional molds for casting grid bodies for lead batteries, cork powder and glue or cork powder and water glass are suspended in water to form a lubricant, and this is sprayed onto the engraved surface of the mold. This ensures heat retention and mold releasability.
しかし、こうした滑剤は耐熱性が十分でな（、持続時間
が短いという欠点がある。又滑剤を使用しない多孔性金
属鋳型の提案もなされている。However, these lubricants have the drawbacks of insufficient heat resistance (and short duration). Porous metal molds that do not use lubricants have also been proposed.
〈発明が解決しようとする課題〉
しかし、多孔性金属鋳型の彫刻溝加工を、フライス、シ
ェーバ−１等により切削加工をすると、加工表面に生ず
るパリにより、目詰まりが生じ、多孔体本来の通気性が
損なわれ、鋳造時のガス抜けが悪くなり、その結果、目
切れど称する鋳造欠陥を生ずることになる。<Problems to be Solved by the Invention> However, when cutting the engraved grooves of a porous metal mold using a milling cutter, shaver 1, etc., clogging occurs due to pars generated on the processed surface, and the inherent ventilation of the porous body is interrupted. This results in poor gas release during casting, resulting in casting defects called nicks.
そこでこの発明は、上記のような従来の多孔性金属鋳型
における問題点を解決するため、ガス抜け、離型性に優
れ、品質及び生産性を向上させることができる鉛合金用
鋳型を提供することを目的としている。Therefore, in order to solve the above-mentioned problems with conventional porous metal molds, it is an object of the present invention to provide a lead alloy mold that has excellent gas release and mold release properties, and can improve quality and productivity. It is an object.
〈課題を解決するための手段〉
上記のような課題を解決するため、この発明は通気性を
有する金属基体よりなる鉛合金用鋳型において、彫刻部
全面又は必要に応じて彫刻溝の一部を放電加工により、
該彫刻溝の表面粗さを基準長さ０．８ｍｍにおける最大
高さを２０μＲｍａｘ以下とした構成を採用したもので
ある。<Means for Solving the Problems> In order to solve the above-mentioned problems, the present invention provides a mold for lead alloy made of a metal base having air permeability, in which the entire surface of the engraved part or a part of the engraved groove is formed as necessary. By electrical discharge machining,
The surface roughness of the engraved groove is such that the maximum height at a reference length of 0.8 mm is 20 μRmax or less.
〈作用〉
通気性を有する金属基体よりなる鉛合金用鋳型の加工面
が放電加工により表面粗さを基準長さ０．８ ｍｒｎに
おける最大高さを２０μＲｍａｘ以下としたので加工面
の目詰発生がなく、ガス抜は及び離型性に優れ、製品の
品質及び生産性を向上させることができる。<Function> The machined surface of the lead alloy mold made of a metal base with air permeability was subjected to electrical discharge machining to obtain a surface roughness of 20 μRmax or less at a standard length of 0.8 mrn, thereby preventing clogging of the machined surface. It has excellent degassing and mold release properties, and can improve product quality and productivity.
〈実施例〉 以下、この発明の詳細な説明する。<Example> The present invention will be explained in detail below.
この発明の鉛合金用鋳型は、通気性を有する金属基体よ
りなり、鉛電池用格子体を鋳造するために形成した彫刻
部全面又は必要に応じて彫刻溝の一部を放電加工により
、該彫刻溝の表面粗さを基準長さ０．８ｍｍにおける最
大高さを２０μＲｍａｘ以下としたものである。The mold for lead alloy of the present invention is made of a metal base having air permeability, and the entire surface of the engraved part formed for casting a lattice body for a lead battery, or a part of the engraved groove as necessary, is processed by electric discharge machining. The surface roughness of the groove is such that the maximum height at a reference length of 0.8 mm is 20 μRmax or less.
具体例１
通気性を有する金属基体として、気孔率約３０％、平均
孔径２０μ、最大孔径７Ωμで大きさが７０ｗ Ｘ ７
０ＨＸ １０Ｔｍｍの素材を用い、この素材の上下面に
直径２０ｍｍ、深さ０．５ｍｍの孔加工を、（１）フラ
イス加工、（２）表面粗さ１０μＲｍａｘの放電加工、
（３）表面粗さ２０μＲｍａｘの放電加工によって行な
い、空気透過性を測定するＢ型ガーレ式デンソメータを
使用し、各素材に対して空気１００−の通過時間を測定
した。Specific example 1 A metal substrate with breathability, porosity of about 30%, average pore diameter of 20μ, maximum pore diameter of 7Ωμ, and size of 70W x 7
Using a material of 0HX 10Tmm, holes with a diameter of 20mm and a depth of 0.5mm were machined on the upper and lower surfaces of this material by (1) milling, (2) electric discharge machining with a surface roughness of 10μRmax,
(3) Electrical discharge machining with a surface roughness of 20 μRmax was performed, and a B-type Gurley densometer for measuring air permeability was used to measure the passage time of 100 − of air for each material.
測定結果は、（１）のフライス加工の場合は１５００〜
２０００秒であり、（２）と（３）の放電加工は１４０
〜１６０秒であった。この結果は、フライス加工すると
加工パリによって目詰し、放電加工ではその影響が少な
いことを意味している。The measurement results are 1500~ for milling (1)
2000 seconds, and the electrical discharge machining of (2) and (3) is 140 seconds.
~160 seconds. This result means that milling causes clogging due to machining, but electrical discharge machining has little effect.
具体例２
次に、大きさが４３０ｗ Ｘ ２４０）（Ｘ ４０Ｔｍ
ｍでその他は具体例１と同一の通気性金属素材を用い、
幅２８０ｍｍ 、高さ１４５ｍｍ 、厚さ２．０ｍｍの
格子体をＮＣフライスで加工した格子体鋳型（ａ）、表
面粗さが１０μＲｍａｘになるように放電加工した格子
体鋳型（ｂ）及び表面粗さが２０μＲｍａｘになるよう
放電加工した格子体鋳型（ｃ）をそれぞれ各１面、計３
面製作し、これらの鋳型にＣａ Ｏ，０９％含有する鉛
合金を溶鉛温度５００℃で型温度を漸次上昇させ、目切
れのなくなる型温度を調べた結果、型温２００℃で放電
加工した格子体鋳型（ｂ）と（ｃ）は目切れはなくなっ
た。Specific example 2 Next, the size is 430w x 240) (x 40Tm
m, otherwise using the same breathable metal material as in Example 1,
A lattice mold (a) made of a lattice with a width of 280 mm, a height of 145 mm, and a thickness of 2.0 mm processed by NC milling, and a lattice mold (b) that was electrically discharge-machined to have a surface roughness of 10 μRmax and its surface roughness. One side of each lattice mold (c) which was electrically discharge machined so that the
The mold temperature was gradually raised to 500℃ for the lead alloy containing 09% CaO, and as a result of investigating the mold temperature at which there were no gaps, electrical discharge machining was performed at a mold temperature of 200℃. There are no gaps in the lattice molds (b) and (c).
しかし、格子体鋳型（ｃ）の表面加工の粗い鋳型は離型
性が悪（、連続運転中しばしば型離れが悪いためのトラ
ブルが生じた。However, the rough surface treatment of the lattice mold (c) had poor mold releasability (during continuous operation, problems often occurred due to poor mold release.
これに対して、格子体鋳型（ｂ）は目切れもなく、連続
運転中のトラブルもなかった。On the other hand, the lattice mold (b) had no breaks and no troubles during continuous operation.
一方、フライス加工した格子体鋳型（ａ）は型温か２５
０℃になっても目切がわずかであるが残り、連続運転中
は型温度の高いこともあって部分的な凝固不足でトラブ
ルが生じた。On the other hand, the milled lattice mold (a) has a mold temperature of 25
Even when the temperature reached 0°C, a slight cut remained, and during continuous operation, partly due to the high mold temperature, troubles occurred due to insufficient solidification.
以上の結果より、フライス加工では目詰が生じ、ガス抜
けが悪（型内にガスが残留し、渦流れを阻害して目切れ
になったが、放電加工では、残留ガスがなくなり目切れ
もない。但し、放電加工は表面粗さを考慮し２０μＲｍ
ａｘ以下にしないと離型を悪（する。From the above results, milling resulted in clogging and poor gas release (gas remained in the mold, obstructing the vortex flow and resulting in cuts, but in electrical discharge machining, there was no residual gas and there were no cuts). No.However, electric discharge machining is 20μRm in consideration of surface roughness.
If it is not lower than ax, it will cause bad mold release.
〈効果〉
以上のように、この発明によると、通気性を有する鉛合
金鋳型において、彫刻部全面又は必要に応じて彫刻溝の
一部を放電加工により、表面粗さを２０Ｈｍａｘ以下と
したので、金属多孔体の通常の加工による通気性の阻害
をなくし、目切れのない離型性に優れた鋳型となり、鉛
蓄電池格子体の品質及び生産性を大幅に向上させること
ができ、その工業的価値は極めて大である。<Effects> As described above, according to the present invention, in a lead alloy mold having air permeability, the entire surface of the engraved part or a part of the engraved groove as required is subjected to electrical discharge machining to make the surface roughness 20Hmax or less. It eliminates the obstruction of air permeability caused by the normal processing of porous metal bodies, creates a seamless mold with excellent mold releasability, and greatly improves the quality and productivity of lead-acid battery lattice bodies, resulting in its industrial value. is extremely large.
Claims (1)
、彫刻部全面又は彫刻溝の一部を放電加工により、該彫
刻溝の表面粗さを基準長さ０．８ｍｍにおける最大高さ
を２０μＲｍａｘ以下としたことを特徴とする鉛合金用
鋳型。In a mold for lead alloy made of a metal base having air permeability, the entire surface of the engraved part or a part of the engraved groove is subjected to electrical discharge machining, and the surface roughness of the engraved groove is adjusted to a maximum height of 20 μRmax or less at a reference length of 0.8 mm. A mold for lead alloys that is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25944990A JPH04135042A (en) | 1990-09-27 | 1990-09-27 | Mold for lead alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25944990A JPH04135042A (en) | 1990-09-27 | 1990-09-27 | Mold for lead alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04135042A true JPH04135042A (en) | 1992-05-08 |
Family
ID=17334232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25944990A Pending JPH04135042A (en) | 1990-09-27 | 1990-09-27 | Mold for lead alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04135042A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004018173A1 (en) * | 2002-08-22 | 2004-03-04 | Water Gremlin Company | Pitted mold |
| US9748551B2 (en) | 2011-06-29 | 2017-08-29 | Water Gremlin Company | Battery parts having retaining and sealing features and associated methods of manufacture and use |
| US9917293B2 (en) | 2009-04-30 | 2018-03-13 | Water Gremlin Company | Battery parts having retaining and sealing features and associated methods of manufacture and use |
| US9954214B2 (en) | 2013-03-15 | 2018-04-24 | Water Gremlin Company | Systems and methods for manufacturing battery parts |
| US10283754B2 (en) | 2004-01-02 | 2019-05-07 | Water Gremlin Company | Battery parts and associated systems and methods |
| US11038156B2 (en) | 2018-12-07 | 2021-06-15 | Water Gremlin Company | Battery parts having solventless acid barriers and associated systems and methods |
-
1990
- 1990-09-27 JP JP25944990A patent/JPH04135042A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004018173A1 (en) * | 2002-08-22 | 2004-03-04 | Water Gremlin Company | Pitted mold |
| US6929051B2 (en) * | 2002-08-22 | 2005-08-16 | Water Gremlin Company | Pitted mold |
| US10283754B2 (en) | 2004-01-02 | 2019-05-07 | Water Gremlin Company | Battery parts and associated systems and methods |
| US9917293B2 (en) | 2009-04-30 | 2018-03-13 | Water Gremlin Company | Battery parts having retaining and sealing features and associated methods of manufacture and use |
| US9935306B2 (en) | 2009-04-30 | 2018-04-03 | Water Gremlin Company | Battery parts having retaining and sealing features and associated methods of manufacture and use |
| US10910625B2 (en) | 2009-04-30 | 2021-02-02 | Water Gremlin Company | Battery parts having retaining and sealing features and associated methods of manufacture and use |
| US9748551B2 (en) | 2011-06-29 | 2017-08-29 | Water Gremlin Company | Battery parts having retaining and sealing features and associated methods of manufacture and use |
| US10181595B2 (en) | 2011-06-29 | 2019-01-15 | Water Gremlin Company | Battery parts having retaining and sealing features and associated methods of manufacture and use |
| US9954214B2 (en) | 2013-03-15 | 2018-04-24 | Water Gremlin Company | Systems and methods for manufacturing battery parts |
| US10217987B2 (en) | 2013-03-15 | 2019-02-26 | Water Gremlin Company | Systems and methods for manufacturing battery parts |
| US11038156B2 (en) | 2018-12-07 | 2021-06-15 | Water Gremlin Company | Battery parts having solventless acid barriers and associated systems and methods |
| US11283141B2 (en) | 2018-12-07 | 2022-03-22 | Water Gremlin Company | Battery parts having solventless acid barriers and associated systems and methods |
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