JPH02137657A - Method for operating holding furnace for press feeding of molten metal - Google Patents
Method for operating holding furnace for press feeding of molten metalInfo
- Publication number
- JPH02137657A JPH02137657A JP63292215A JP29221588A JPH02137657A JP H02137657 A JPH02137657 A JP H02137657A JP 63292215 A JP63292215 A JP 63292215A JP 29221588 A JP29221588 A JP 29221588A JP H02137657 A JPH02137657 A JP H02137657A
- Authority
- JP
- Japan
- Prior art keywords
- low melting
- furnace body
- molten metal
- melting point
- 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.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 51
- 239000002184 metal Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims description 10
- 238000002844 melting Methods 0.000 claims abstract description 38
- 230000008018 melting Effects 0.000 claims abstract description 28
- 238000001125 extrusion Methods 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 239000011810 insulating material Substances 0.000 abstract description 2
- 230000004580 weight loss Effects 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000007665 sagging 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
- 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)
Abstract
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 (Field of Industrial Application) The present invention is a method for forming a core of a low melting point metal by feeding a molten low melting point metal held in a furnace under pressure to a mold placed outside the machine. The present invention relates to a method of operating a pressurized feeding and holding furnace for casting molten metal.
（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旧（ビスマス）を含んでいる
ことが多く、高価である。(Prior art and problems) In recent years, cores cast with low melting point metals have been increasingly used to manufacture hollow bodies with complex shapes, but the low melting point metals used for casting are older ( bismuth) and are expensive.
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（
−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。On the other hand, as a method of casting a core of a low melting point metal, a pressurized molten metal feed holding furnace is used in which a molten low melting point metal is fed under pressure to a mold placed outside the machine. However, since the low melting point metal held in the furnace body reaches high temperatures, its upper surface is easily oxidized (
- Degree of oxidation raises the melting point and solidifies, so this is removed manually.
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, the expensive low-melting point metal is subject to a lot of glazing, which increases casting costs.
（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。(Purpose) The present invention was made in view of the above problems, and an object of the present invention is to provide a method of operating a pressurized molten metal feeding and holding furnace that can eliminate the sagging of expensive low-melting point metals. .
（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
加圧送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 Problems) The present invention is a method of operating a molten metal pressurized feeding holding furnace in which a low melting point metal held in the furnace body is fed under pressure to a mold outside the machine, the method comprising: The furnace is operated in a state in which an amount of heat-resistant oil necessary to cover the upper surface of the low-melting point metal in the body is poured into the furnace body to prevent the upper surface of the low-melting point metal from coming into contact with air. It 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。(Function) By adopting such a solution, it becomes possible to operate the furnace in a state where the low melting point metal inside the furnace body is completely isolated from the outside air. For this reason, it is possible to eliminate eyelidness due to oxidation of low melting point metals.
（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。(Example) Embodiments of the present invention will be described in detail below based on the drawings.
（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。(1) is a heat insulating material installed around 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）の上側部には溶融導入孔（６）が穿っであるととも
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）が連速されている。A pressure cylinder (5) with a U-shaped cross section is disposed within the furnace body (3) via a support stand (4).
5) There is a melting introduction hole (6) in the upper part, and a mold (7) outside the machine from the top of the furnace body (3) in the bottom side.
The nozzle (8) leading to the is continuously operated.
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, the pressurizing cylinder (5) has a pressurizing piston (5) fixed to the tip of the piston rod (11) of the extrusion cylinder (10), which is provided downwardly through the support member (9) above the furnace body (3) and outside the machine. 12) are 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１３８０Ｃ１
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), there is a molten low melting point metal (
S) (In the example, it is an alloy of Bi and Su with a melting point of 1380C1.
Specific gravity 8.5) is supplied to the upper part of the pressurizing cylinder (5), and a heat-resistant oil (0) is supplied to the upper surface of the low melting point metal (S). It is completely covered and floating.
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.
I used about 0 oil. Note that (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（ｌＯ）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 this state, the extrusion cylinder (lO) is activated to lower the pressure piston (12), and the molten metal in the pressure cylinder (5) is pumped through the nozzle (8) to the outside mold (
7) is fed under pressure and held for a predetermined period of time to cast a core made of a low melting point metal.
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 operated in reverse to return the pressurizing piston (12) to the state shown in FIG. 1, thereby introducing the molten metal into the pressurizing cylinder (5). At this time, the furnace body (3
) was lowered, but the heat-resistant oil (0) was floating above the low-melting point metal (S) and completely covered the top surface of the low-melting point metal (S). It descends while maintaining its condition. Therefore, the low melting point metal (S) in the furnace body (3) is not exposed to air and is prevented from oxidizing.
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。By repeating the above operations, when the upper surface level of the molten metal is lowered to the level shown by the chain line (L), the low melting point metal (S) is replenished from the molten metal replenishment cylinder (14), resulting in the state shown in FIG. 1.
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
用して加圧送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 pressurized cylinder (5) is used to feed the low melting point metal under pressure, but the same effect can be obtained even if the holding furnace is pressurized and fed using a 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 clear from the above description, the present invention provides a method in which heat-resistant oil is poured into the furnace body in an amount necessary to cover the upper surface of the low-melting point metal, so that the upper surface of the low-melting point metal is exposed to air. Since it is operated in a state where contact is prevented, oxidation of the low melting point metal in the furnace body can be prevented, which is useful for reducing casting costs.
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
特許出願人 新東工業株式会社１
牢
図FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention. (3): Furnace body (S): Low melting point metal (0): Heat-resistant oil Patent applicant Shinto Kogyo Co., Ltd. 1 Jyozu
Claims (1)
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。A method of operating a molten metal pressurized feeding holding furnace in which a low melting point metal held in a furnace body is fed under pressure to a mold outside the machine, the method comprising:
The furnace is operated in a state in which an amount of heat-resistant oil necessary to cover the upper surface of the low-melting point metal in the furnace body is poured into the furnace body to prevent the upper surface of the low-melting point metal from coming into contact with air. How to operate a pressurized molten metal feeding and holding furnace.
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 true JPH02137657A (en) | 1990-05-25 |
| JP2540619B2 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) |
Cited By (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 |
| US11097336B2 (en) * | 2017-07-17 | 2021-08-24 | Universite Grenoble Alpes | Device and method for producing metal slugs |
| CN114535533A (en) * | 2022-02-23 | 2022-05-27 | 厦门凤扬网络科技有限公司 | Actual manufacturing device for sword device based on game concept |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614386A (en) * | 1979-07-16 | 1981-02-12 | Fujitsu Ltd | Coordinate input device |
| JPS5941833A (en) * | 1982-05-07 | 1984-03-08 | ジ−・シ−・エ−・コ−ポレ−シヨン | Electron beam lithographic device |
| 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 |
| US4676296A (en) * | 1984-10-05 | 1987-06-30 | Fry's Metals Limited | Apparatus for casting metal alloys having low melting points |
| 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
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614386A (en) * | 1979-07-16 | 1981-02-12 | Fujitsu Ltd | Coordinate input device |
| JPS5941833A (en) * | 1982-05-07 | 1984-03-08 | ジ−・シ−・エ−・コ−ポレ−シヨン | Electron beam lithographic device |
| 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 |
| US4676296A (en) * | 1984-10-05 | 1987-06-30 | Fry's Metals Limited | Apparatus for casting metal alloys having low melting points |
| JPS6392419A (en) * | 1986-10-07 | 1988-04-22 | Toyoda Gosei Co Ltd | Method of molding synthetic resin hollow body |
Cited By (4)
| 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 |
| US11097336B2 (en) * | 2017-07-17 | 2021-08-24 | Universite Grenoble Alpes | Device and method for producing metal slugs |
| CN114535533A (en) * | 2022-02-23 | 2022-05-27 | 厦门凤扬网络科技有限公司 | Actual manufacturing device for sword device based on game concept |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2540619B2 (en) | 1996-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |