JPH0424143B2 - - Google Patents
Info
- Publication number
- JPH0424143B2 JPH0424143B2 JP59013575A JP1357584A JPH0424143B2 JP H0424143 B2 JPH0424143 B2 JP H0424143B2 JP 59013575 A JP59013575 A JP 59013575A JP 1357584 A JP1357584 A JP 1357584A JP H0424143 B2 JPH0424143 B2 JP H0424143B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molten metal
- casting
- electromagnetic induction
- mold space
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 29
- 230000005674 electromagnetic induction Effects 0.000 claims description 21
- 238000005266 casting Methods 0.000 claims description 19
- 239000004020 conductor Substances 0.000 claims description 19
- 239000000696 magnetic material Substances 0.000 claims description 6
- 239000003110 molding sand Substances 0.000 claims description 4
- 239000000615 nonconductor Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/02—Use of electric or magnetic effects
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、鋳造製品のうち、特に、カーテンウ
オールやレリーフ等の、薄肉大面積の板状長尺製
品を鋳造成形する場合に有効な鋳込み装置に関す
る。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a casting method that is effective for casting products, particularly thin-walled, large-area plate-like long products such as curtain walls and reliefs. Regarding equipment.
従来では、この種の薄肉大面積の板状長尺製品
の鋳込み装置として特別に用意されたものがな
く、一般の鋳物砂等の鋳型造形部材で薄肉の鋳型
空間を形成し、この鋳型空間内に、所定温度に加
熱溶融された金属を単に注入する鋳込み手段が採
られていた。このため、鋳型空間内での溶湯の凝
固時間が非常に短く、これに伴つて流動長も短く
なるため、鋳造製品の薄肉化及び長尺化に大きな
制約があつた。
Conventionally, there was no specially prepared casting equipment for this type of thin-walled, large-area plate-shaped long product, and a thin-walled mold space was formed using mold-forming materials such as general foundry sand, and the inside of this mold space was In addition, a casting method was adopted in which metal heated and molten to a predetermined temperature was simply injected. For this reason, the solidification time of the molten metal within the mold space is extremely short, and the flow length is also short accordingly, which has placed significant restrictions on making cast products thinner and longer.
このような従来技術のもつ不具合を解消するに
は、薄肉大面積の板状長尺製品の鋳込み装置とし
て用いられたものではないが、例えば、特開昭55
−64957号公報、または特開昭57−199558号公報
に示されるように、磁性材料からなる金型自体を
加熱して、溶融金属溜りの外周層を横側方から加
熱するようにする、あるいは、鋳型造形部材及び
鋳型枠の全体を、溶湯の注入に先立つて加熱炉内
に搬入し、ここで所要温度にまで加熱した後、溶
湯を注入して、鋳型空間内での溶湯の凝固時間を
遅らせるようにする手段を応用することも考えら
れる。
In order to solve the problems of the prior art, for example, Japanese Patent Laid-Open No. 55
As shown in JP-A-64957 or JP-A-57-199558, the mold itself made of magnetic material is heated to heat the outer peripheral layer of the molten metal pool from the lateral side, or , the entire mold forming member and mold flask are transported into a heating furnace prior to pouring the molten metal, heated here to the required temperature, the molten metal is poured, and the solidification time of the molten metal within the mold space is determined. It is also conceivable to apply means to delay the process.
しかしながら、これらの技術による場合には、
溶湯の凝固を遅らせるためだけに必要な、溶湯に
与える熱量以外に、金型自体、あるいは、鋳型造
形部材や鋳型枠、並びに、加熱炉内部雰囲気の全
体を昇温させるに足る膨大な熱量が要求され、熱
的ロスが大きいのみならず、加熱の程度を短時間
でコントロールすることも難しく、また、加熱時
間も長くいるという問題がある。 However, with these techniques,
In addition to the amount of heat given to the molten metal that is necessary only to delay the solidification of the molten metal, a huge amount of heat is required to raise the temperature of the mold itself, the mold forming parts, the mold flask, and the entire atmosphere inside the heating furnace. However, there are problems in that not only is there a large thermal loss, but it is also difficult to control the degree of heating in a short period of time, and the heating time is also long.
本発明の目的は、鋳型造形部材や鋳型枠を備え
る鋳込み装置を用いて鋳込みを行うにあたつて、
熱的ロスや加熱時間のロスが極力少ない状態で、
充分に薄肉大面積の板状長尺製品を得られるよう
にすることにある。 The purpose of the present invention is to perform casting using a casting device equipped with a mold forming member and a mold flask.
With minimal thermal loss and heating time loss,
To obtain a plate-shaped long product having a sufficiently thin wall and large area.
上記目的を達成するために講じた本発明の技術
手段は、鋳型空間を非磁性材料で、かつ、電気絶
縁物からなる鋳型造形部材で形成した薄肉大面積
の板状長尺製品の鋳造用鋳込み装置において、下
記〔イ〕及び〔ロ〕に記載の構成を備えたことで
ある。
The technical means of the present invention taken to achieve the above object is a casting method for casting thin-walled, large-area plate-like long products in which the mold space is made of a non-magnetic material and a mold-forming member made of an electrical insulator. The apparatus is equipped with the configurations described in [A] and [B] below.
〔イ〕 前記鋳型空間の外周部で、湯口側から鋳
型空間の最奥部にわたる位置に、その鋳型空間
における溶湯の流動方向に沿つて一連のコイル
状の電磁誘導加熱用導電体を配設してある。[B] A series of coil-shaped electromagnetic induction heating conductors are disposed at the outer periphery of the mold space, extending from the sprue side to the innermost part of the mold space, along the flow direction of the molten metal in the mold space. There is.
〔ロ〕 前記電磁誘導加熱用導電体は、鋳込まれ
た溶融金属が鋳型空間の最奥部にまで達するに
好適な流動性を維持し得る程度の所要温度にま
で、前記鋳型空間内に鋳込まれた溶融金属を電
磁誘導熱により加熱するように構成してある。[B] The electromagnetic induction heating conductor is cast into the mold space to a required temperature that allows the cast molten metal to maintain suitable fluidity to reach the innermost part of the mold space. The molten metal is heated by electromagnetic induction heat.
上記技術手段を講じた結果、次の作用を得られ
る。
As a result of taking the above technical means, the following effects can be obtained.
ａ 鋳型造形部材を非磁性材料で構成するととも
に、鋳型空間内の溶湯に作用する電磁誘導加熱
用導電体を配設したものであるから、前記導電
体に通電すると、鋳型空間内に注入された溶湯
の、磁力線と交差する部分に多数の渦電流が発
生し、これが電気抵抗となつて溶融金属が直接
的に加熱されることになる。a The mold forming member is made of a non-magnetic material and is equipped with an electromagnetic induction heating conductor that acts on the molten metal in the mold space, so when the conductor is energized, the molten metal injected into the mold space is A large number of eddy currents are generated in the molten metal where they intersect with the lines of magnetic force, and this creates electrical resistance, directly heating the molten metal.
ｂ しかも、電磁誘導加熱用導電体は、鋳型空間
の外周部で、湯口側から鋳型空間の最奥部にわ
たる位置に、その鋳型空間における溶湯の流動
方向に沿つて一連のコイル状に配設してあるか
ら、薄肉大面積の板状長尺製品の形状に沿わせ
て、部分的な熱量の過不足の生じにくい状態で
渦電流を発生させ易い。b Moreover, the electromagnetic induction heating conductor is arranged in a series of coils along the flow direction of the molten metal in the mold space at a position extending from the sprue side to the innermost part of the mold space on the outer periphery of the mold space. Therefore, it is easy to generate eddy currents along the shape of a thin, large-area plate-like long product in a state where local excess or deficiency of heat is less likely to occur.
ｃ 前記鋳型空間の外周部に配設された電磁誘導
加熱用導電体は、鋳込まれた溶融金属が鋳型空
間の最奥部にまで達するに好適な流動性を維持
し得る程度の所要温度にまで、前記鋳型空間内
に鋳込まれた溶融金属を電磁誘導熱により加熱
するように構成されているので、溶融金属を確
実に鋳型空間の最奥部にまで案内することがで
きる。c The electromagnetic induction heating conductor disposed around the outer periphery of the mold space is heated to a required temperature to maintain suitable fluidity for the cast molten metal to reach the innermost part of the mold space. Since the molten metal cast into the mold space is heated by electromagnetic induction heat, the molten metal can be reliably guided to the innermost part of the mold space.
イ 上記ａの作用から、鋳型内に注入された溶湯
を直接的に加熱することができ、従来の、金
型、あるいは鋳型造形部材や鋳型枠、などを介
して間接的に溶湯に熱を与える場合に比べて、
熱的ロスの少ない状態で、しかも、加熱時間も
少なく加熱することができる。
B Due to the effect of a above, the molten metal injected into the mold can be directly heated, and heat can be indirectly applied to the molten metal through the conventional mold, mold forming members, mold flask, etc. Compared to the case
Heating can be performed with less thermal loss and in less heating time.
ロ 上記ａ及びｂの作用から、注入された溶湯に
与える熱量のコントロールを直接的に、しかも
短時間で行うことができるとともに、鋳型空間
内での部分的な温度ムラも少ない状態で加熱す
ることができるので、溶湯の温度を所望温度範
囲に制御しやすく、薄肉大面積の板状長尺製品
を、不良品少なく鋳造し易いという効果があ
る。(b) Due to the effects of a and b above, the amount of heat given to the injected molten metal can be controlled directly and in a short time, and heating can be performed with little local temperature unevenness within the mold space. As a result, the temperature of the molten metal can be easily controlled within a desired temperature range, and thin, large-area plate-like long products can be easily cast with fewer defects.
ハ 上記ｂ及びｃの作用から、溶融金属が鋳型空
間の最奥部に達するまでその流動状態を確実に
維持して、この点からも薄肉大面積の板状長尺
製品を不良品少なく製作しやすい。C. Due to the effects of b and c above, the fluid state of the molten metal is reliably maintained until it reaches the innermost part of the mold space, and from this point of view as well, thin-walled, large-area plate-like long products can be manufactured with fewer defects. Cheap.
以下に、本発明の実施例を図面の記載に基づい
て説明する。鋳造用鋳込み装置を構成するに、第
１図に示すように、鋳型空間１を形成するための
非磁性材料で、かつ、電気絶縁物であるところの
鋳物砂（鋳型造形部材の一例である。）２を収納
してある非磁性体製鋳型枠３の外周部で、湯口７
側から鋳型空間１の最奥部にわたる位置に、一連
のコイル状に巻回された電磁誘導加熱用導電体４
を配設するとともに、この導電体４をトランス６
を介して交流電源５に通電接続している。
Embodiments of the present invention will be described below based on the drawings. As shown in FIG. 1, the casting device for casting is constructed using foundry sand (an example of a mold forming member) which is a non-magnetic material and an electrical insulator for forming a mold space 1. ) 2 is housed at the outer periphery of the non-magnetic mold flask 3.
A conductor 4 for electromagnetic induction heating is wound in a series of coils at a position extending from the side to the innermost part of the mold space 1.
At the same time, this conductor 4 is connected to a transformer 6.
It is electrically connected to the AC power source 5 via.
そして、前記電磁誘導加熱用導電体４は、鋳込
まれた溶融金属が鋳型空間１の最奥部にまで達す
るに好適な流動性を維持し得る程度の所要温度に
まで、前記鋳型空間１内に鋳込まれた溶融金属を
電磁誘導熱により加熱するように構成してあり、
この電磁誘導加熱用導電体４に交流電流を通して
磁力線を発生させると、湯口７を通して鋳型空間
１内に鋳込まれた溶湯の、前記磁力線と交差する
部分に多数の渦電流が発生し、それが電気抵抗と
なつて溶湯が直接所定温度にまで加熱されるので
ある。 The electromagnetic induction heating conductor 4 heats the inside of the mold space 1 to a required temperature at which the cast molten metal can maintain suitable fluidity to reach the innermost part of the mold space 1. It is configured to heat the molten metal cast in by electromagnetic induction heat,
When an alternating current is passed through the electromagnetic induction heating conductor 4 to generate lines of magnetic force, many eddy currents are generated in the portions of the molten metal poured into the mold space 1 through the sprue 7 that intersect with the lines of magnetic force. This acts as an electrical resistance and directly heats the molten metal to a predetermined temperature.
次に、別実施例について列記する。 Next, another example will be listed.
(イ) 前記電磁誘導加熱用導電体４を、第２図に示
すように鋳物砂内の中間に配設する。(a) The electromagnetic induction heating conductor 4 is placed in the middle of the molding sand as shown in FIG.
(ロ) 前記電磁誘導加熱用導電体４で、鋳型空間１
内に鋳込まれる溶湯の全体を同一の温度条件で
加熱しても良いが、鋳型空間１内の溶湯が均一
またはほぼ均一に凝固されるように、その溶湯
の流動方向での熱的特性の差に応じて、加熱温
度に部分的に差をもたせて実施する。(b) With the electromagnetic induction heating conductor 4, the mold space 1
Although the entire molten metal poured into the mold space 1 may be heated under the same temperature conditions, the thermal characteristics of the molten metal in the flow direction of the molten metal should be adjusted so that the molten metal in the mold space 1 is uniformly or almost uniformly solidified. Depending on the difference, the heating temperature is partially varied.
(ハ) 前記鋳型造形部材２として鋳物砂以外の非磁
性材料からなるものを使用する。(c) The mold forming member 2 is made of a non-magnetic material other than foundry sand.
(ニ) 前記電磁誘導加熱用導電体４による加熱温度
を自由に設定変更可能に構成する。(d) The heating temperature by the electromagnetic induction heating conductor 4 can be freely set and changed.
(ホ) 前記電磁誘導加熱用導電体４による加熱温度
をマイクロコンピユータを利用してプログラム
制御し、かつ、その制御状況をブラウン管上に
表示する。(E) The heating temperature by the electromagnetic induction heating conductor 4 is program-controlled using a microcomputer, and the control status is displayed on a cathode ray tube.
第１図は本発明に係る鋳造用鋳込み装置の実施
例を示す原理図、第２図は別実施例を示す原理図
である。
１……鋳型空間、２……鋳型造形部材、３……
非磁性体製鋳型枠、４……電磁誘導加熱用導電
体、７……湯口。
FIG. 1 is a principle diagram showing an embodiment of a casting apparatus for casting according to the present invention, and FIG. 2 is a principle diagram showing another embodiment. 1...Mold space, 2...Mold forming member, 3...
Non-magnetic mold flask, 4... conductor for electromagnetic induction heating, 7... sprue.
Claims (1)
物からなる鋳型造形部材２で形成するとともに、
下記〔イ〕及び〔ロ〕に記載の構成を備えている
薄肉大面積の板状長尺製品の鋳造用鋳込み装置 〔イ〕 前記鋳型空間１の外周部で、湯口７側か
ら鋳型空間１の最奥部にわたる位置に、その鋳
型空間１における溶湯の流動方向に沿つて一連
のコイル状の電磁誘導加熱用導電体４を配設し
てある。 〔ロ〕 前記電磁誘導加熱用導電体４は、鋳込ま
れた溶融金属が鋳型空間１の最奥部にまで達す
るに好適な流動性を維持し得る程度の所要温度
にまで、前記鋳型空間１内に鋳込まれた溶融金
属を電磁誘導熱により加熱するように構成して
ある。 ２ 前記鋳型造形部材２が鋳物砂であり、その鋳
型造形部材２を収納保持する非磁性体製鋳型枠３
の外周部に前記電磁誘導加熱用導電体４を配設し
てあることを特徴とする特許請求の範囲第１項に
記載の薄肉大面積の板状長尺製品の鋳造用鋳込み
装置。 ３ 前記鋳型造形部材２が鋳物砂であり、この鋳
物砂の中に前記電磁誘導加熱用導電体４を配設し
てあることを特徴とする特許請求の範囲第１項に
記載の薄肉大面積の板状長尺製品の鋳造用鋳込み
装置。[Scope of Claims] 1. The mold space 1 is formed of a non-magnetic material and a mold forming member 2 made of an electrical insulator, and
A casting device for casting thin-walled, large-area, long plate-like products having the configurations described in [A] and [B] below [B] At the outer periphery of the mold space 1, from the sprue 7 side to the mold space 1. A series of coil-shaped electromagnetic induction heating conductors 4 are disposed at the innermost position along the flow direction of the molten metal in the mold space 1. [B] The electromagnetic induction heating conductor 4 heats the mold space 1 to a required temperature at which the cast molten metal can maintain suitable fluidity to reach the innermost part of the mold space 1. The molten metal cast therein is heated by electromagnetic induction heat. 2. The mold forming member 2 is molding sand, and a non-magnetic mold flask 3 houses and holds the mold forming member 2.
2. The casting apparatus for casting a thin-walled, large-area plate-like elongated product according to claim 1, wherein the electromagnetic induction heating conductor 4 is disposed on the outer periphery of the casting device. 3. The thin-walled, large-area mold forming member 2 according to claim 1, wherein the mold forming member 2 is molding sand, and the electromagnetic induction heating conductor 4 is disposed in the molding sand. Casting equipment for casting long plate-like products.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1357584A JPS60158970A (en) | 1984-01-27 | 1984-01-27 | Pouring device for casting |
| GB08422355A GB2148761A (en) | 1983-09-26 | 1984-09-05 | Casting plate-like articles |
| EP84110784A EP0141180A1 (en) | 1983-09-26 | 1984-09-10 | Casting apparatus |
| US06/654,589 US4605054A (en) | 1983-09-26 | 1984-09-26 | Casting apparatus including a conductor for electromagnetic induction heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1357584A JPS60158970A (en) | 1984-01-27 | 1984-01-27 | Pouring device for casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60158970A JPS60158970A (en) | 1985-08-20 |
| JPH0424143B2 true JPH0424143B2 (en) | 1992-04-24 |
Family
ID=11836962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1357584A Granted JPS60158970A (en) | 1983-09-26 | 1984-01-27 | Pouring device for casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60158970A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6216779B1 (en) * | 1997-12-17 | 2001-04-17 | Baker Hughes Incorporated | Downhole tool actuator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5564957A (en) * | 1978-11-07 | 1980-05-16 | Mitsubishi Heavy Ind Ltd | Production of unidirectionally solidified material and apparatus thereof |
| JPS57199558A (en) * | 1981-02-27 | 1982-12-07 | Trw Inc | Casting method |
| JPS58196151A (en) * | 1982-04-22 | 1983-11-15 | アルベツト・ソシエテ・アノニム | Mold nozzle |
| JPS6061163A (en) * | 1983-09-12 | 1985-04-08 | Kawachi Alum Kogyo Kk | Pouring method for casting and casting device for casting |
-
1984
- 1984-01-27 JP JP1357584A patent/JPS60158970A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5564957A (en) * | 1978-11-07 | 1980-05-16 | Mitsubishi Heavy Ind Ltd | Production of unidirectionally solidified material and apparatus thereof |
| JPS57199558A (en) * | 1981-02-27 | 1982-12-07 | Trw Inc | Casting method |
| JPS58196151A (en) * | 1982-04-22 | 1983-11-15 | アルベツト・ソシエテ・アノニム | Mold nozzle |
| JPS6061163A (en) * | 1983-09-12 | 1985-04-08 | Kawachi Alum Kogyo Kk | Pouring method for casting and casting device for casting |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60158970A (en) | 1985-08-20 |
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