JPS6054829B2 - Insulation ladle - Google Patents
Insulation ladleInfo
- Publication number
- JPS6054829B2 JPS6054829B2 JP3554580A JP3554580A JPS6054829B2 JP S6054829 B2 JPS6054829 B2 JP S6054829B2 JP 3554580 A JP3554580 A JP 3554580A JP 3554580 A JP3554580 A JP 3554580A JP S6054829 B2 JPS6054829 B2 JP S6054829B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- crucible
- ladle
- temperature
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
- B22D41/01—Heating means
- B22D41/015—Heating means with external heating, i.e. the heat source not being a part of the ladle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Description
【発明の詳細な説明】
この発明は金属溶湯の温度を長時間保持する保温とりべ
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat-retaining ladle that maintains the temperature of molten metal for a long period of time.
保温とりべは、これに入れられた溶湯の温度が長時間保
持されるとともに、溶湯の温度が所定値以下に低下した
場合は簡単に再昇温でき、また合金添加が容易に行なえ
ることが要求される。A heat-retaining ladle maintains the temperature of the molten metal placed in it for a long time, and if the temperature of the molten metal drops below a predetermined value, it can be easily reheated, and alloys can be added easily. required.
この種の保温とりべとして従来溶湯運搬用のとりべがよ
く知られている。このとりべは予じめ溶湯温度より高い
温度に熱せられており、溶湯を注入したときとりべに蓄
えられた熱により、溶湯の温度は一たん上昇するが、次
第に放熱されて溶湯温度が下降し、遂には凝固温度より
低くなるという欠点がある。アルミニウムの場合、凝固
温度以下まで低下する時間は約２時間である。第１図は
従来のとりべの概略図で、１は耐火性材料でつくられた
容器、２は溶湯、３は溶湯の排出口、４は上蓋で、被溶
解材料は上部開口５から容器１内に投入される。Ladles for transporting molten metal are well known as this type of heat-retaining ladle. This ladle is preheated to a temperature higher than the temperature of the molten metal, and when the molten metal is poured, the temperature of the molten metal rises temporarily due to the heat stored in the ladle, but the heat is gradually radiated and the molten metal temperature decreases. However, it has the disadvantage that it eventually becomes lower than the solidification temperature. In the case of aluminum, the time required to drop below the solidification temperature is approximately 2 hours. Fig. 1 is a schematic diagram of a conventional ladle, in which 1 is a container made of a refractory material, 2 is a molten metal, 3 is a molten metal outlet, 4 is an upper lid, and the material to be melted is passed through an upper opening 5 into the container 1. It is put inside.
６はとりべ吊り下げ用の支持腕である。6 is a support arm for hanging the ladle.
第２図はとりべに入れられた溶湯の温度変化を示すグラ
フで、溶湯をとりべに入れると、とりべが予じめ溶湯よ
り高温に熱せられている為、その蓄えられた熱により溶
湯は一たん温度が上昇するが、その後は冷されて温度が
下降する。Figure 2 is a graph showing the temperature change of molten metal placed in a ladle. When molten metal is placed in a ladle, since the ladle is preheated to a higher temperature than the molten metal, the stored heat causes the molten metal to melt. The temperature rises for a while, but then it cools down and the temperature drops.
そこで、とりべ内の溶湯の温度を下降させないようにす
る為にとりべ全体を加熱炉内に置いて連続的に加熱する
ことが考えられるが、そのためには各とりべ毎に１個の
加熱炉を必要とし、加熱炉は電力用の配線、冷却水用の
配管など場所的に固定された付属設備も相当の面積を必
要とするうえ、常時溶湯を加熱すると、溶湯は、加熱用
コイルによる電磁力および対流のため上下方向に循環し
、その上面の空気に接する部分がたえず変わるので、ア
ルミニウムなどの酸化され易い溶湯の場合は溶湯全体に
亘つて酸化が進行し、溶湯の質が低下し、極めて不都合
である。Therefore, in order to prevent the temperature of the molten metal in the ladle from dropping, it may be possible to place the entire ladle in a heating furnace and heat it continuously, but in order to do so, it is necessary to place one heating furnace for each ladle. In addition, heating furnaces require a considerable amount of space for fixed auxiliary equipment such as power wiring and cooling water piping, and if the molten metal is constantly heated, the molten metal will be heated by electromagnetic heating coils. It circulates vertically due to force and convection, and the part of the upper surface that comes into contact with the air changes constantly, so in the case of molten metal that is easily oxidized, such as aluminum, oxidation progresses throughout the molten metal, reducing the quality of the molten metal. This is extremely inconvenient.
この発明は従来のとりべの上記欠点を考慮してなされた
ものであつて、その目的は１個の誘導加熱炉により複数
個のとりべの溶湯を再加熱して、１それぞれの溶湯の保
温時間を長くでき、また合金添加をも可能にした保温と
りべを提供することである。This invention was made in consideration of the above-mentioned drawbacks of the conventional ladle, and its purpose is to reheat the molten metal in a plurality of ladle with one induction heating furnace and keep each molten metal warm. To provide a heat-retaining ladle that can be used for a long time and also allows addition of alloys.
上記の目的を達成するためにこの発明では、溶湯を入れ
るためのるつぼを設け、このるつぼの外ｉ部を上半部と
下半部とに分割された保温体て包み、保温体の下半部は
るつぼから取り外せるようにし、この下半部を取り外し
てるつぼの下半部を別置した誘導加熱コイル内に挿入す
ることによつてるつぼ内の溶湯を再昇温できるようにす
る。In order to achieve the above object, the present invention provides a crucible for pouring molten metal, wraps the outer i part of the crucible in a heat insulator divided into an upper half and a lower half, and The molten metal in the crucible can be reheated by removing the lower half and inserting the lower half of the crucible into a separate induction heating coil.
このようにして１個の別置された誘導加熱コイルによつ
て複数個のとりベを順次再加熱することがてき、よつて
各るつぼの保温時間を長くすることができ、また各とり
ベの溶湯に合金を添加することも可能になる。In this way, multiple ladle can be sequentially reheated by one separate induction heating coil, thereby increasing the heat retention time of each crucible, and also reheating each ladle in sequence. It also becomes possible to add alloys to the molten metal.
以下この発明を図示する１実施例について詳細に説明す
る。An embodiment illustrating the present invention will be described in detail below.
第３図はこの発明の１実施例の構成を示すための概略断
面図であつて、１１は黒鉛、鉄、セラミックなどで作ら
れたるつぼ、１２は上半部保温体、１３は下半部保温体
で、１２と１３とは別体とされ、１２はるつぼ１１の上
半部の外側を包むとともにるつぼ１１の上方に当つて被
溶解材の投入口１４が形成されており、１３はるつぼ１
１の下半部の外側を包み、なおるつほ１１の下半部から
取外すことができるようになつている。FIG. 3 is a schematic sectional view showing the configuration of one embodiment of the present invention, in which 11 is a crucible made of graphite, iron, ceramic, etc., 12 is an upper half heat insulator, and 13 is a lower half. A heat insulating body, 12 and 13 are separate bodies, 12 wraps the outside of the upper half of the crucible 11, and an inlet 14 for the material to be melted is formed above the crucible 11, and 13 is a heat insulating body for the crucible 11. 1
1 and can be removed from the lower half of the foot 11.
１５は保温体１２の外側を包む鉄板、１６は保温体１３
の外側を包む鉄板、１７は鉄板１５の下端から突出した
フランジ、１８は鉄板１６の上端から突出したフランジ
で、フランジ１７と１８とをボルト、ナット（図示しな
い。15 is an iron plate that wraps the outside of the heat insulating body 12, and 16 is the heat insulating body 13.
17 is a flange protruding from the lower end of the iron plate 15, 18 is a flange protruding from the upper end of the iron plate 16, and the flanges 17 and 18 are connected by bolts and nuts (not shown).
）などで結合することにより保温体１２の下端面と保温
体１３の上端面とが接触する状態に保持される。１９は
保温体１２に設けた出湯口、２０は保温体１２の上部の
投入口１４の上蓋、２１は保温体１２に取り付けたとり
ベ吊下け用の支持腕で、この支持腕によつてるつぼ１１
は上半部保温体１２とともに吊り上げられ、支持される
ようになつている。), etc., so that the lower end surface of the heat insulator 12 and the upper end surface of the heat insulator 13 are held in contact with each other. Reference numeral 19 denotes a tap hole provided on the heat insulating body 12, 20 indicates an upper cover of the input port 14 on the upper part of the heat insulating body 12, and 21 indicates a support arm for hanging the ladle attached to the heat insulating body 12. Crucible 11
is suspended and supported together with the upper half heat insulating body 12.
その為にこの実施例ではるつぼ１１を下方に向つて小径
になる截頭円錐形状にしている。２２は溶湯である。For this reason, in this embodiment, the crucible 11 is shaped into a truncated cone whose diameter becomes smaller toward the bottom. 22 is a molten metal.
第４図は第３図の下半部保温体１３を取り外し、るつぼ
１１の下半部を誘導加熱コイル内に挿入したものを示す
もので、３１は電源、３２は誘導加熱コイル、３３はコ
イル３２の内側に設けられた耐火物の層である。第３図
の保温体１３はフランジ１７と１８とを結合するボルト
、ナットを取り外すことにより、るつぼ１１から取り外
すことができ、支持腕２１でるつほ１１と保温体１２と
を一体として吊り上げて、別に設けた加熱コイル３２内
にるつぼ１１の下半部を挿入することができる。FIG. 4 shows the lower half of the crucible 11 inserted into the induction heating coil after removing the lower half heat insulator 13 of FIG. 3, where 31 is a power source, 32 is an induction heating coil, and 33 is a coil This is a layer of refractory material provided inside the 32. The heat insulating body 13 shown in FIG. 3 can be removed from the crucible 11 by removing the bolts and nuts connecting the flanges 17 and 18, and lifting the crucible 11 and the heat insulating body 12 together with the support arm 21. The lower half of the crucible 11 can be inserted into a separately provided heating coil 32 .
よつてるつぼ１１内の溶湯２２の温度が使用条件以下の
温度まで降下すれば第４図に示すように加熱コイル３２
の中に置いて再加熱し、規定の温度まで上昇すれば加熱
コイル３２から吊り上げて下半部保温体１３の直ちにる
つぼ１１の下半部に装置し、フラン・ジ１７と１８とを
結合する。このように、るつぼ１１内の溶湯２２の温度
を再加熱して保温時間を２倍にすることができる。When the temperature of the molten metal 22 in the crucible 11 falls below the operating conditions, the heating coil 32 is turned off as shown in FIG.
When the temperature reaches a specified temperature, it is lifted from the heating coil 32 and immediately placed in the lower half of the crucible 11 of the lower half heat insulator 13, and the flanges 17 and 18 are joined. . In this way, the temperature of the molten metal 22 in the crucible 11 can be reheated to double the heat retention time.
第５図に示すように再加熱は繰り返し行なうこともでき
る。さらに合金添加も第５図の状態で加熱して行なうこ
とができる。以上説明したように、この発明によれば、
とりベ内の溶湯が使用条件以下の温度に下降した場合は
溶易に再加熱して規定の温度まで上昇させ、よつて保温
時間を長くすることができ、加熱昇温された溶湯は加熱
をやめて保温されるから、この保温中は溶湯は循環せず
、すなわち攪拌されることがなく鎮静されるからアルミ
ニウムのような酸化され易いものでも常時溶湯を加熱す
る場合にくらべて酸化が少なくてすみ、良質の溶湯が得
られ、また再加熱の為の誘導加熱コイルは複数個のるつ
ぼに対して１個設ければよく、なお合金の添加も容易に
行なえるなどの長所がある。Reheating can also be repeated as shown in FIG. Furthermore, alloy addition can also be carried out by heating in the state shown in FIG. As explained above, according to this invention,
If the temperature of the molten metal in the ladle drops below the operating conditions, it can be easily reheated and raised to the specified temperature, thereby extending the heat retention time. Since the molten metal is not circulated during this heating period, it is not stirred and is kept calm, so even materials that easily oxidize, such as aluminum, are less likely to be oxidized than when the molten metal is constantly heated. , good quality molten metal can be obtained, one induction heating coil for reheating only needs to be provided for a plurality of crucibles, and alloys can be easily added.
第１図は従来の保温用とリベの概略断面図、第２図は溶
湯の温度・時間特性図、第３図はこの発明の保温用とり
ベの概略断面図、第４図は加熱誘導コイルによるとりベ
の溶湯の加熱状態を示すための概略断面図、第５図は温
度・時間特性図である。
１１・・・・・・るつぼ、１２・・・・・・上半部保温
体、１３・・・・・・下半部保温体、３２・・・・・・
誘導加熱コイル。Fig. 1 is a schematic cross-sectional view of a conventional heat-retaining ladle, Fig. 2 is a temperature/time characteristic diagram of molten metal, Fig. 3 is a schematic cross-sectional view of the heat-retaining ladle of the present invention, and Fig. 4 is a heating induction coil. FIG. 5 is a schematic cross-sectional view showing the heating state of the molten metal in the ladle, and FIG. 5 is a temperature/time characteristic diagram. 11... Crucible, 12... Upper half heat insulator, 13... Lower half heat insulator, 32...
induction heating coil.
Claims (1)
で包み、前記保温体の下半部はるつぼから取外し可能な
構造とし、前記保温体の下半部を取り外して前記るつぼ
の下半部を別に設けた誘導加熱コイル内に挿入すること
によつて前記るつぼ内の溶湯を再昇温できるようにした
ことを特徴とする保温とりべ。1 The outside of the crucible is wrapped with a heat insulating body divided into an upper half and a lower half, the lower half of the heat insulating body is removable from the crucible, and the lower half of the heat insulating body is removed and the crucible is opened. 1. A heat-retaining ladle, characterized in that the temperature of the molten metal in the crucible can be raised again by inserting the lower half into a separate induction heating coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3554580A JPS6054829B2 (en) | 1980-03-19 | 1980-03-19 | Insulation ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3554580A JPS6054829B2 (en) | 1980-03-19 | 1980-03-19 | Insulation ladle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56134059A JPS56134059A (en) | 1981-10-20 |
| JPS6054829B2 true JPS6054829B2 (en) | 1985-12-02 |
Family
ID=12444691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3554580A Expired JPS6054829B2 (en) | 1980-03-19 | 1980-03-19 | Insulation ladle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6054829B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6120909U (en) * | 1984-06-08 | 1986-02-06 | エムハート インダストリーズ インコーポレーテッド | Structural parts such as nuts |
| JPS6327712U (en) * | 1986-08-06 | 1988-02-23 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013022417A1 (en) | 2011-08-05 | 2013-02-14 | Crucible Intellectual Property Llc | Crucible materials |
| JP6397834B2 (en) * | 2016-01-06 | 2018-09-26 | クルーシブル インテレクチュアル プロパティ エルエルシーＣｒｕｃｉｂｌｅ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｌｌｃ | Crucible material |
| CN108500248A (en) * | 2018-03-16 | 2018-09-07 | 上海永茂泰汽车零部件有限公司 | Water-impervious molten aluminum transferring device |
-
1980
- 1980-03-19 JP JP3554580A patent/JPS6054829B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6120909U (en) * | 1984-06-08 | 1986-02-06 | エムハート インダストリーズ インコーポレーテッド | Structural parts such as nuts |
| JPS6327712U (en) * | 1986-08-06 | 1988-02-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56134059A (en) | 1981-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5272720A (en) | Induction heating apparatus and method | |
| US6192969B1 (en) | Casting of high purity oxygen free copper | |
| US3484840A (en) | Method and apparatus for melting and pouring titanium | |
| JPS60187459A (en) | Induction heating ladle | |
| JPH077707B2 (en) | Metal contamination prevention method | |
| JPS6054829B2 (en) | Insulation ladle | |
| US2319402A (en) | Desulphurizing apparatus | |
| EP0083205A2 (en) | Apparatus for producing castings in a vacuum. | |
| JPS6054828B2 (en) | Ladle heating device | |
| JPS61193753A (en) | Heater for interposing laddle | |
| JPH077015Y2 (en) | Channel type inductor | |
| JP3094761B2 (en) | Pouring pot with induction heating device | |
| US3729307A (en) | Method and apparatus for electroslag remelting of metals,particularly steel | |
| US3451467A (en) | Centrifugal casting apparatus | |
| JPS58148057A (en) | Method for heating molten steel for continuous casting | |
| JP2898645B2 (en) | High frequency heating coil for horizontal continuous casting | |
| US3174737A (en) | Holding furnaces | |
| JPH11320079A (en) | Crucible furnace type ladle | |
| US4596020A (en) | Metal melting and melt heat retaining furnace | |
| US1914354A (en) | Electric induction furnace | |
| JP3342583B2 (en) | High frequency heating coil for horizontal continuous casting | |
| JPS59223148A (en) | Induction heating method of molten metal in tundish | |
| US3303260A (en) | Induction melting furnace | |
| CN117588946A (en) | Continuous tapping induction melting furnace | |
| SU816685A1 (en) | Method and apparatus for producing hollow castings |