JP2540619B2 - Operation method of molten metal pressure feeding and holding furnace - Google Patents
Operation method of molten metal pressure feeding and holding furnaceInfo
- Publication number
- JP2540619B2 JP2540619B2 JP63292215A JP29221588A JP2540619B2 JP 2540619 B2 JP2540619 B2 JP 2540619B2 JP 63292215 A JP63292215 A JP 63292215A JP 29221588 A JP29221588 A JP 29221588A JP 2540619 B2 JP2540619 B2 JP 2540619B2
- Authority
- JP
- Japan
- Prior art keywords
- low
- melting point
- molten metal
- furnace
- metal
- 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
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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は炉体内に保持された溶融状態の低融点金属を
機外に配置した金型に加圧送給して低融点金属の中子を
鋳造するようにした溶湯加圧送給保持炉の操業方法に関
する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention applies a molten low-melting-point metal held in a furnace body under pressure to a die disposed outside the machine to remove the core of the low-melting-point metal. The present invention relates to a method for operating a molten metal pressure feeding and holding furnace for casting.
（従来技術と問題点） 近年複雑な形状の中空体を製造するのに低融点金属で
鋳造された中子を使用することが多くなっているが鋳造
用に使用される低融点金属はBi（ビスマス）を含んでい
ることが多く、高価である。一方低融点金属の中子を鋳
造する方法として溶融状態の低融点金属を機外に配置し
た金型に加圧送給する溶湯加圧送給保持炉が利用されて
いる。しかし炉体内に保持される低融点金属は高温にな
るためその上面は酸化しやすく一度酸化すると融点が高
くなって固化してしまうためこれを手作業で取り除いて
いる。(Prior art and problems) In recent years, cores cast from low-melting-point metals are often used to manufacture hollow bodies having complicated shapes, but the low-melting-point metals used for casting are Bi ( Often contains bismuth) and is expensive. On the other hand, as a method for casting a core of a low melting point metal, a molten metal pressure feeding and holding furnace for feeding a molten low melting point metal to a die arranged outside the machine under pressure is used. However, since the low melting point metal held in the furnace body becomes high in temperature, its upper surface is easily oxidized and once it is oxidized, the melting point becomes high and it solidifies, so this is removed by hand.
このため高価な低融点金属の目べりが多く鋳造コスト
を増大させている。For this reason, expensive low-melting-point metal is often used for casting, which increases casting cost.
（目 的） 本発明は、上記問題に鑑みてなされたもので高価な低
融点金属の目べりをなくすことができる溶湯加圧送給保
持炉の操業方法を提供することを目的とするものであ
る。(Aim) The present invention has been made in view of the above problems, and an object of the present invention is to provide a method for operating a molten metal pressure feeding and holding furnace capable of eliminating the unsmoothness of an expensive low melting point metal. .
（問題を解決するための手段） 本発明は、炉体内に保持した低融点金属を機外の金型
に加圧供給するようにした溶湯加圧送給保持炉の操業方
法であって、該炉体内の低融点金属の上面を覆うに必要
な量の耐熱性オイルを該炉体内に投入して該低融点金属
の上面が空気に触れるのを阻止した状態にして操業する
ことを特徴とするものである。(Means for Solving the Problem) The present invention relates to a method for operating a molten-metal pressure feed-and-hold furnace in which a low-melting metal held in a furnace is supplied under pressure to a die outside the machine. Characterized in that heat-resistant oil in an amount necessary to cover the upper surface of the low melting point metal in the body is put into the furnace body to prevent the upper surface of the low melting point metal from coming into contact with air, and then the operation is performed. Is.
（作 用） このような解決手段を採用することにより炉体内の低
融点金属を外気から完全に遮断した状態にして操業する
ことが可能になる。このため低融点金属の酸化による目
べりをなくすことができる。(Operation) By adopting such a solution, it becomes possible to operate with the low melting point metal in the furnace completely shielded from the outside air. For this reason, it is possible to eliminate glare caused by oxidation of the low melting point metal.
（実施例） 以下本発明の実施例を図面に基づいて詳しく説明す
る。（１）はヒーター（２）を取り付けた炉体（３）の
外周に施工された断熱材である。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings. (1) is a heat insulating material applied to the outer periphery of the furnace body (3) to which the heater (2) is attached.
該炉体（３）内には、支持台（４）を介して断面Ｕ字
形の加圧シリンダ（５）が配設されており、該シリンダ
（５）の上側部には溶湯導入孔（６）が穿ってあるとと
もに底部側面には炉体（３）の上部から機外の金型
（７）に通じるノズル（８）が連通されている。Inside the furnace body (3), a pressurizing cylinder (5) having a U-shaped cross section is arranged via a support base (4), and a molten metal introducing hole (6) is provided on the upper side of the cylinder (5). ) Is formed, and a nozzle (8) communicating from the upper part of the furnace body (3) to the mold (7) outside the machine is connected to the bottom side surface.
また加圧シリンダ（５）には炉体（３）上方の機外に
おいて支持部材（９）を介して下向きに設けた押出しシ
リンダ（10）のピストンロッド（11）先端に固着した加
圧ピストン（12）が摺動自在に嵌合されている。In addition, a pressurizing cylinder (5) fixed to the tip of a piston rod (11) of an extruding cylinder (10) provided downward through a supporting member (9) above the furnace body (3) is attached to the pressurizing cylinder (5). 12) is slidably fitted.
さらに前記炉体（３）内には、溶融状態の低融点金属
（Ｓ）（実施例ではBiとSuの合金で融点138℃、比重8.
5）が前記加圧シリンダ（５）の上部位置まで供給され
ており、該低融点金属（Ｓ）の上部には、耐熱性オイル
（０）が該低融点金属（Ｓ）の上面を完全に覆って浮い
た状態になっている。Further, in the furnace body (3), a low melting point metal (S) in a molten state (in the embodiment, an alloy of Bi and Su has a melting point of 138 ° C. and a specific gravity of 8.
5) is supplied to the upper position of the pressure cylinder (5), and the heat resistant oil (0) completely covers the upper surface of the low melting point metal (S) above the low melting point metal (S). It is covered and floated.
尚耐熱性オイル（０）は一般に市販されている比重1.
0程度のオイルを使用した。尚図中（13）は溶湯補給筒
である。The heat resistant oil (0) has a specific gravity of 1.
About 0 oil was used. Incidentally, (13) in the figure is a molten metal supply cylinder.
このような状態において、押し出しシリンダ（10）が
作動して加圧ピストン（12）を下降させて加圧シリンダ
（５）内の溶湯をノズル（８）を介して機外の金型
（７）に加圧送給し、所定時間保持することにより低融
点金属製の中子が鋳造される。In such a state, the push-out cylinder (10) operates to lower the pressurizing piston (12) so that the molten metal in the pressurizing cylinder (5) is passed through the nozzle (8) to the mold (7) outside the machine. A core made of a low melting point metal is cast by pressure-feeding and holding for a predetermined time.
次に押し出しシリンダ（10）が逆作動して加圧ピスト
ン（12）を第１図の状態に復帰させることにより溶湯が
加圧シリンダ（５）内に導入される。この際炉体（３）
内の低融点金属（Ｓ）の上面レベルが下降されるが耐熱
性オイル（０）は低融点金属（Ｓ）の上部に浮いている
ため低融点金属（Ｓ）の上面を完全に覆った状態を維持
しながら下降される。したがって炉体（３）内の低融点
金属（Ｓ）は空気に触れることがなく酸化を防止され
る。Next, the extrusion cylinder (10) is reversely operated to return the pressurizing piston (12) to the state shown in FIG. 1, whereby the molten metal is introduced into the pressurizing cylinder (5). At this time, the furnace body (3)
The upper surface level of the low melting point metal (S) is lowered, but the heat resistant oil (0) is floating above the low melting point metal (S), so that the upper surface of the low melting point metal (S) is completely covered. Is lowered while maintaining. Therefore, the low melting point metal (S) in the furnace body (3) does not come into contact with air and is prevented from being oxidized.
以上の作動をくりかえし行ない溶湯の上面レベルが鎖
線レベル（Ｌ）まで下降されると溶湯補給筒（14）から
低融点金属（Ｓ）が補給されて第１図の状態になる。When the above operation is repeated and the upper surface level of the molten metal is lowered to the chain line level (L), the low melting point metal (S) is replenished from the molten metal replenishing cylinder (14) and the state shown in FIG. 1 is obtained.
尚実施例においては、低融点金属の加圧送給を加圧シ
リンダ（５）を用いて行なうようにしているがポンプを
使用して加圧供給する保持炉であっても同様の作用が得
られる。In the embodiment, the pressure-feeding of the low-melting-point metal is carried out by using the pressure cylinder (5), but the same effect can be obtained even in the holding furnace for supplying pressure by using the pump. .
（効 果） 本発明は、上記の説明から明らかなように炉体内の低
融点金属の上面を覆うに必要な量の耐熱性オイルを炉体
内に投入して該低融点金属の上面が空気に触れるのを阻
止した状態にして操業するものであるから炉体内の低融
点金属の酸化を防ぐことができるようになり鋳造コスト
の低減に役立つものである。(Effects) As is apparent from the above description, the present invention introduces heat-resistant oil into the furnace body in an amount necessary to cover the upper surface of the low-melting metal in the furnace body so that the upper surface of the low-melting metal becomes air. Since the operation is carried out in a state where it is prevented from touching, it becomes possible to prevent the oxidation of the low melting point metal in the furnace body, which is useful for reducing the casting cost.
第１図は本発明の実施例を示す縦断面図である。 （３）：炉体、（Ｓ）：低融点金属 （０）：耐熱性オイル FIG. 1 is a vertical sectional view showing an embodiment of the present invention. (3): furnace body, (S): low melting point metal (0): heat resistant oil
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭60−124446（ＪＰ，Ａ) 特開 昭50−59229（ＪＰ，Ａ) 特公 昭60−18267（ＪＰ，Ｂ２) 特公 昭59−41833（ＪＰ，Ｂ２) 特公 昭56−14386（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 60-124446 (JP, A) JP 50-59229 (JP, A) JP 60-18267 (JP, B2) JP 59- 41833 (JP, B2) JP-B 56-14386 (JP, B2)
Claims (1)
に加圧供給するようにした溶湯加圧送給保持炉の操業方
法であって、該炉体内の低融点金属の上面を覆うに必要
な量の耐熱性オイルを該炉体内に投入して該低融点金属
の上面が空気に触れるのを阻止した状態にして操業する
ことを特徴とする溶湯加圧送給保持炉の操業方法。1. A method of operating a molten metal pressure feeding and holding furnace in which a low-melting metal held in a furnace is supplied under pressure to a die outside the machine, wherein an upper surface of the low-melting metal in the furnace is A method for operating a molten metal pressure feeding and holding furnace, characterized in that a heat-resistant oil in an amount necessary for covering is put into the furnace body to operate in a state in which the upper surface of the low melting point metal is prevented from coming into contact with air. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63292215A JP2540619B2 (en) | 1988-11-18 | 1988-11-18 | Operation method of molten metal pressure feeding and holding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63292215A JP2540619B2 (en) | 1988-11-18 | 1988-11-18 | Operation method of molten metal pressure feeding and holding furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02137657A JPH02137657A (en) | 1990-05-25 |
| JP2540619B2 true JP2540619B2 (en) | 1996-10-09 |
Family
ID=17779002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63292215A Expired - Fee Related JP2540619B2 (en) | 1988-11-18 | 1988-11-18 | Operation method of molten metal pressure feeding and holding furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2540619B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623830A (en) * | 2017-03-21 | 2017-05-10 | 江苏省冶金设计院有限公司 | Single-roll production device and method for copper alloy bar |
| FR3068900B1 (en) * | 2017-07-17 | 2021-12-03 | Univ Grenoble Alpes | DEVICE AND METHOD FOR MANUFACTURING METAL SHEETS |
| CN114535533B (en) * | 2022-02-23 | 2024-05-03 | 厦门凤扬网络科技有限公司 | Real manufacturing device of sword ware based on game concept |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614386A (en) * | 1979-07-16 | 1981-02-12 | Fujitsu Ltd | Coordinate input device |
| US4425508A (en) * | 1982-05-07 | 1984-01-10 | Gca Corporation | Electron beam lithographic apparatus |
| JPS6018267A (en) * | 1983-07-13 | 1985-01-30 | Mitsubishi Heavy Ind Ltd | Production of composite casting roll |
| JPS6092100U (en) * | 1983-11-29 | 1985-06-24 | 千住金属工業株式会社 | Nozzle for low melting point metal outflow |
| JPS60124446A (en) * | 1983-12-09 | 1985-07-03 | Kawasaki Steel Corp | Continuous casting method with belt type continuous casting machine |
| GB8425182D0 (en) * | 1984-10-05 | 1984-11-14 | Frys Metals Ltd | Casting apparatus |
| JPS6392419A (en) * | 1986-10-07 | 1988-04-22 | Toyoda Gosei Co Ltd | Method of molding synthetic resin hollow body |
-
1988
- 1988-11-18 JP JP63292215A patent/JP2540619B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02137657A (en) | 1990-05-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |