JP2577586B2 - Lubricant for injection sleeve in casting equipment - Google Patents
Lubricant for injection sleeve in casting equipmentInfo
- Publication number
- JP2577586B2 JP2577586B2 JP62303865A JP30386587A JP2577586B2 JP 2577586 B2 JP2577586 B2 JP 2577586B2 JP 62303865 A JP62303865 A JP 62303865A JP 30386587 A JP30386587 A JP 30386587A JP 2577586 B2 JP2577586 B2 JP 2577586B2
- Authority
- JP
- Japan
- Prior art keywords
- injection sleeve
- lubricant
- powder
- molten metal
- heat
- 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.)
- Expired - Fee Related
Links
Landscapes
- Lubricants (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は、鋳造装置における射出スリーブ内面に塗布
してプランジャチップの射出動作をよりスムーズならし
めるための射出スリーブ用潤滑剤に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricant for an injection sleeve which is applied to an inner surface of an injection sleeve in a casting apparatus to make the injection operation of a plunger tip smoother.
＜従来の技術とその問題点＞ 従来のこの種潤滑剤は、油成分のみからなる油脂系潤
滑剤のようにそれ自体液状である潤滑剤では勿論のこ
と、黒鉛やボロン（BN）のように自己潤滑性を有しそれ
自体では固体又は粉体であっても水や油などに溶解又は
分散させて液状にして使用していた。<Conventional technology and its problems> Conventional lubricants of this kind are not only liquid lubricants themselves, such as oil-based lubricants consisting only of oil components, but also graphite and boron (BN). Even if it has a self-lubricating property and is itself a solid or a powder, it has been used by dissolving or dispersing it in water, oil, or the like to make it a liquid.
その為に、射出スリーブ内に溶湯を注湯した際に水や
油成分が溶湯の熱で反応してガスを発生し、このガスが
溶湯中に巻き込まれて鋳造品の品質を低下させてしまう
不具合があった。Therefore, when the molten metal is poured into the injection sleeve, water and oil components react with the heat of the molten metal to generate gas, and this gas is caught in the molten metal and deteriorates the quality of the cast product. There was a defect.
しかも、液状潤滑剤を射出スリーブ内面に塗布する
と、射出スリーブの内面が冷されるため、射出スリーブ
内に注湯された溶湯の凝固速度が速くなって、射出前の
溶湯の凝固率が高くなり、湯回り不良などの不良品発生
を来たしやすい不具合があった。Moreover, when a liquid lubricant is applied to the inner surface of the injection sleeve, the inner surface of the injection sleeve is cooled, so that the solidification rate of the molten metal poured into the injection sleeve is increased, and the solidification rate of the molten metal before injection is increased. In addition, there was a problem that a defective product such as poor running water was easily generated.
加えて、液状潤滑剤を用いた場合には、潤滑剤を塗布
するたびにその後エアーブローを行なって乾燥させなけ
ればならないため、鋳造サイクルが間延してしまう不具
合があった。In addition, when a liquid lubricant is used, every time the lubricant is applied, it must be air blown and then dried, so that there is a problem that the casting cycle is delayed.
＜発明が解決しようとする課題＞ 本発明はこの様な従来の不具合に鑑みてなされたもの
であり、射出スリーブの内周面とプランジャチップの外
周面とを確実に潤滑させてプランジャチップのスムーズ
な射出動作を期待することが出来ると共に、射出スリー
ブ内に注湯された溶湯を保温して射出前の溶湯の凝固率
を大幅に低下させることが可能な鋳造装置における射出
スリーブ用潤滑剤を提供せんとするものである。<Problems to be Solved by the Invention> The present invention has been made in view of such a conventional problem, and ensures smooth lubrication of the inner peripheral surface of the injection sleeve and the outer peripheral surface of the plunger tip to ensure smoothness of the plunger tip. Providing a lubricant for an injection sleeve in a casting machine, which can expect a high injection operation and can significantly reduce the solidification rate of the molten metal before injection by keeping the molten metal poured into the injection sleeve. It is something you want to do.
＜課題を達成するための手段＞ 斯る課題を達成する本発明の鋳造装置の射出スリーブ
用潤滑剤は、射出スリーブ内の熱でもって溶融する自己
潤滑性を有する粉体と、溶湯には反応しない断熱性を有
する粉体とを混ぜ合わせてなり、前記自己潤滑性を有す
る粉体がステアリン酸とナトリウム，マグネシウム，亜
鉛，カルシュウムなどのステアリン酸塩類や、フッソ樹
脂，フタロシアニン，ポリエチレン，ポリプロピレン等
の樹脂粉、から選ばれた１種若しくは２種以上の混合体
であり、前記断熱性を有する粉体がBeO,MgO,Al2O3,Si
O2,CaO,TiO2,Cr2O3,Fe2O3,FeO,MnO,PbOなどの金属酸化
物やこれらの金属酸化物の混合体であるタルク，スピネ
ル，ムライト、或いはWC,TiN,TiC,B4C,TiB,ZrC,SiC,Si3
N4,BN、亜鉛から選ばれた１種若しくは２種以上の混合
体であることを特徴としたものである。<Means for Achieving the Object> The injection sleeve lubricant of the casting apparatus of the present invention that achieves the object described above has a self-lubricating powder that melts by heat in the injection sleeve reacts with the molten metal. The powder having self-lubricating properties is mixed with stearic acid and stearic acid salts such as sodium, magnesium, zinc, calcium, and the like, such as fluorine resin, phthalocyanine, polyethylene, and polypropylene. Resin powder or a mixture of two or more selected from the group consisting of BeO, MgO, Al 2 O 3 , Si
Metal oxides such as O 2 , CaO, TiO 2 , Cr 2 O 3 , Fe 2 O 3 , FeO, MnO, PbO and mixtures of these metal oxides, such as talc, spinel, mullite, WC, TiN, TiC, B 4 C, TiB, ZrC, SiC, Si 3
It is characterized by being one or a mixture of two or more kinds selected from N 4 , BN and zinc.
＜作 用＞ この粉体状潤滑剤を射出スリーブの内面に塗布し射出
スリーブ内に溶湯を注湯すると、自己潤滑性を有する粉
体が射出スリーブ内に注湯された溶湯の熱で溶融して射
出スリーブの内面に潤滑性膜が形成されてプランジャー
チップとの潤滑性が図られると共に、断熱性を有する粉
体が射出スリーブ内面と溶湯の間に介在して溶湯を保温
するようになる。<Operation> When this powdery lubricant is applied to the inner surface of the injection sleeve and the molten metal is poured into the injection sleeve, the powder having self-lubricating properties is melted by the heat of the molten metal poured into the injection sleeve. As a result, a lubricating film is formed on the inner surface of the injection sleeve to ensure lubricity with the plunger tip, and a powder having heat insulating properties is interposed between the inner surface of the injection sleeve and the melt to keep the melt warm. .
＜実施例＞ 本発明に係る潤滑剤は、射出スリーブ内の熱でもって
溶融する自己潤滑性を有する粉体を従成分とし、上記溶
湯とは全く反応しない断熱性を有する粉体を主成分と
し、これら２種類の粉体を混ぜ合わせてなる粉状混合体
である。<Example> The lubricant according to the present invention has, as a main component, a powder having a self-lubricating property which is melted by heat in an injection sleeve and a powder having a heat insulating property which does not react with the molten metal as a main component. And a powdery mixture obtained by mixing these two types of powders.
自己潤滑性を有する粉体としては、ステアリン酸とナ
トリウム，マグネシウム，亜鉛，カルシュウムなどのス
テアリン酸塩類や、フッソ樹脂，フタロシアニン，ポリ
エチレン，ポリプロピレン等の樹脂粉など自己潤滑性を
有する材料を所望の粒径の粉末状にしたものを挙げるこ
とができる。As the powder having self-lubricating properties, materials having self-lubricating properties such as stearic acid and stearic acid salts such as sodium, magnesium, zinc, and calcium, and resin powders such as fluorine resin, phthalocyanine, polyethylene, and polypropylene are used. A powder having a diameter can be used.
又、断熱性を有する粉体としては、BeO,MgO,Al2O3,Si
O2,CaO,TiO2,Cr2O3,Fe2O3,FeO,MnO,PbOなどの金属酸化
物や、これらの金属酸化物の混合体であるタルク，スピ
ネル，ムライト、或いはWC,TiN,TiC,B4C,TiB,ZrC,SiC,S
i3N4,BN,黒鉛などのセラミックス材料等、溶湯と全く反
応しない物質を所望の粒径の粉末状にしたものを挙げる
ことができる。In addition, as powder having heat insulating properties, BeO, MgO, Al 2 O 3 , Si
Metal oxides such as O 2 , CaO, TiO 2 , Cr 2 O 3 , Fe 2 O 3 , FeO, MnO, PbO and mixtures of these metal oxides such as talc, spinel, mullite, or WC, TiN , TiC, B 4 C, TiB, ZrC, SiC, S
Examples thereof include powders of substances having no desired reaction with the molten metal, such as ceramic materials such as i 3 N 4 , BN, and graphite.
而して、上記した自己潤滑性を有する粉体のなかから
一種若しくは数種を選択し、それに上記した断熱性を有
する粉体の一種若しくは数種を均質に混ぜ合わせて、粉
体のまま射出スリーブの内面に、静電気を利用した静電
塗布法などの所望な塗布方法によって付着塗布するもの
である。Accordingly, one or several kinds of the above-mentioned powders having self-lubricating properties are selected, and one or several kinds of the above-mentioned powders having the heat insulating property are mixed uniformly, and the powder is injected as it is. The inner surface of the sleeve is adhered and applied by a desired application method such as an electrostatic application method using static electricity.
＜発明の効果＞ 本発明に係る潤滑剤は斯様に、射出スリーブ内の熱で
もって溶融する自己潤滑性を有する粉体と、溶湯には反
応しない断熱性を有する粉体とを混ぜ合わせてなる粉体
状潤滑剤としたので、下記の効果を奏する。<Effect of the Invention> The lubricant according to the present invention is obtained by mixing a powder having a self-lubricating property which is melted by heat in an injection sleeve and a powder having an insulating property which does not react with a molten metal. Since the powdery lubricant is used, the following effects can be obtained.
この粉体状潤滑剤を射出スリーブの内面に塗布し射
出スリーブ内に溶湯を注湯すると、自己潤滑性を有する
粉体が射出スリーブ内に注湯された溶湯の熱で溶融して
射出スリーブの内面に潤滑性膜が形成されて射出スリー
ブ内周面とプランジャチップ外周面とを確実に潤滑さ
せ、プランジャチップをスムーズに射出移動させること
が出来る。When this powdery lubricant is applied to the inner surface of the injection sleeve and the molten metal is poured into the injection sleeve, the powder having self-lubricating properties is melted by the heat of the molten metal poured into the injection sleeve, and A lubricating film is formed on the inner surface to reliably lubricate the inner peripheral surface of the injection sleeve and the outer peripheral surface of the plunger tip, so that the plunger tip can be smoothly injected and moved.
この粉体状潤滑剤を射出スリーブの内面に塗布し射
出スリーブ内に溶湯を注湯すると、射出スリーブ内に注
湯された溶湯は粉体状の潤滑剤で隔てられて射出スリー
ブの内面に直接接触することがないと同時に粉体状潤滑
剤が持つ断熱作用により保温され、従って射出スリーブ
の内面に粉状潤滑剤を塗布した際に射出スリーブの内面
温度を低下させることがないことと相俟って、射出スリ
ーブ内に注湯された溶湯の凝固速度を遅くして射出前の
溶湯の凝固率を大幅に低下させることが出来、その結
果、湯流れが良く安定し、高品質の鋳造品を安定して鋳
造することが出来る。When this powdery lubricant is applied to the inner surface of the injection sleeve and the molten metal is poured into the injection sleeve, the molten metal poured into the injection sleeve is separated by the powdery lubricant and directly on the inner surface of the injection sleeve. At the same time, the powdered lubricant is kept warm by the heat insulation effect of the powdered lubricant, so that the temperature of the inner surface of the injection sleeve is not lowered when the powdered lubricant is applied to the inner surface of the injection sleeve. Therefore, the solidification rate of the molten metal poured into the injection sleeve can be reduced, and the solidification rate of the molten metal before injection can be significantly reduced. As a result, the molten metal flow is stable and high quality casting Can be cast stably.
この粉体状潤滑剤を射出スリーブの内面に付着塗布
させるに際して、従来のように液状のキャリアを必要と
しないので、潤滑剤塗布後のエアーブロー工程を省略す
ることが出来、従って、鋳造サイクルの短縮化を図るこ
とが出来る。When applying and applying this powdery lubricant to the inner surface of the injection sleeve, a liquid carrier is not required as in the prior art, so that the air blowing step after the application of the lubricant can be omitted. Shortening can be achieved.
従来の液状潤滑剤のように油や水に溶解又は分散さ
せずに使用できるので、射出スリーブ内に溶湯を注湯し
た際にガスの発生がなく、その結果、溶湯中にガスを巻
き込むことがなくなるので、鋳造品の強度が向上すると
共に強度のバラ付きが少なくなる。Since it can be used without dissolving or dispersing in oil or water like a conventional liquid lubricant, no gas is generated when pouring the molten metal into the injection sleeve, and as a result, gas can be trapped in the molten metal Since it is eliminated, the strength of the cast product is improved and the variation in strength is reduced.
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ１０Ｍ 107:38 103:06） Ｃ１０Ｎ 40:20 Continued on the front page (51) Int.Cl. 6 Identification number Reference number in the agency FI Technical display location C10M 107: 38 103: 06) C10N 40:20
Claims (1)
潤滑性を有する粉体と、溶湯には反応しない断熱性を有
する粉体とを混ぜ合わせてなり、前記自己潤滑性を有す
る粉体がステアリン酸とナトリウム，マグネシウム，亜
鉛，カルシュウムなどのステアリン酸塩類や、フッソ樹
脂，フタロシアニン，ポリエチレン，ポリプロピレン等
の樹脂粉、から選ばれた１種若しくは２種以上の混合体
であり、 前記断熱性を有する粉体がBeO,MgO,Al2O3,SiO2,CaO,TiO
2,Cr2O3,Fe2O3,FeO,MnO,PbOなどの金属酸化物やこれら
の金属酸化物の混合体であるタルク，スピネル，ムライ
ト、或いはWC,TiN,TiC,B4C,TiB,ZrC,SiC,Si3N4,BN,黒鉛
から選ばれた１種若しくは２種以上の混合体であること
を特徴とした鋳造装置の射出スリーブ用潤滑剤。1. A mixture of a self-lubricating powder which is melted by heat in an injection sleeve and a heat-insulating powder which does not react with a molten metal. It is a mixture of stearic acid and one or more selected from stearic acid salts such as sodium, magnesium, zinc and calcium, and resin powders such as fluorine resin, phthalocyanine, polyethylene and polypropylene. Have powder BeO, MgO, Al 2 O 3 , SiO 2 , CaO, TiO
Metal oxides such as 2 , Cr 2 O 3 , Fe 2 O 3 , FeO, MnO, PbO, and mixtures of these metal oxides, such as talc, spinel, mullite, or WC, TiN, TiC, B 4 C, TiB, ZrC, SiC, Si 3 N 4, BN, lubricant injection sleeve of the casting apparatus characterized in that the one or more of the mixture selected from graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62303865A JP2577586B2 (en) | 1987-11-30 | 1987-11-30 | Lubricant for injection sleeve in casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62303865A JP2577586B2 (en) | 1987-11-30 | 1987-11-30 | Lubricant for injection sleeve in casting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01144494A JPH01144494A (en) | 1989-06-06 |
| JP2577586B2 true JP2577586B2 (en) | 1997-02-05 |
Family
ID=17926208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62303865A Expired - Fee Related JP2577586B2 (en) | 1987-11-30 | 1987-11-30 | Lubricant for injection sleeve in casting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2577586B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04236300A (en) * | 1991-01-17 | 1992-08-25 | Hanano Shoji Kk | Powdery lubricant for plunger device |
| EP3746531A4 (en) * | 2018-01-29 | 2021-09-22 | Purdue Research Foundation | Compositions for use as lubricants in die casting methods of using the same, and products produced therewith |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183236A (en) * | 1978-01-30 | 1980-01-15 | Trw Inc. | Method of isothermal forging |
| JPH07107157B2 (en) * | 1986-02-07 | 1995-11-15 | 新日鐵化学株式会社 | Lubricant composition for high temperature |
-
1987
- 1987-11-30 JP JP62303865A patent/JP2577586B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01144494A (en) | 1989-06-06 |
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