JP2008173671A - Degassing apparatus - Google Patents

Degassing apparatus Download PDF

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Publication number
JP2008173671A
JP2008173671A JP2007009858A JP2007009858A JP2008173671A JP 2008173671 A JP2008173671 A JP 2008173671A JP 2007009858 A JP2007009858 A JP 2007009858A JP 2007009858 A JP2007009858 A JP 2007009858A JP 2008173671 A JP2008173671 A JP 2008173671A
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molten metal
degassing
opening
chamber
side wall
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JP2008173671A5 (en
JP4205131B2 (en
Inventor
Minoru Takaoka
稔 高岡
Tetsuya Uchino
哲也 内野
Tetsuya Umezaki
哲也 梅崎
Shusaku Maehara
周作 前原
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Mitsui Mining and Smelting Co Ltd
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Mitsui Mining and Smelting Co Ltd
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Priority to JP2007009858A priority Critical patent/JP4205131B2/en
Priority to CN200880001324XA priority patent/CN101568397B/en
Priority to PCT/JP2008/000050 priority patent/WO2008087865A1/en
Publication of JP2008173671A publication Critical patent/JP2008173671A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a degassing apparatus capable of sufficiently removing gaseous hydrogen, inclusions or the like in a molten metal. <P>SOLUTION: The degassing apparatus 1 has a degassing chamber 4 for performing the degassing by stirring a molten metal by a stirring body 6. An opening part 7 from which the molten metal is allowed to flow out of the degassing chamber 4 to a molten metal tapping chamber 5 is formed in a vicinity of a lower center of a side wall 1c. A surrounding plate 8 for surrounding the opening part 7 is arranged while opening a downstream side of the circulating molten metal. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、アルミニウム合金などの溶湯の脱ガス処理を行なう脱ガス装置に関する。   The present invention relates to a degassing apparatus for degassing a molten metal such as an aluminum alloy.

アルミニウム合金などの鋳造では、鋳造前に溶湯中のＨ２ガスや酸化物等の介在物などを除去するため、脱ガス処理を行なう。この脱ガス処理を行なう脱ガス装置（脱ガス炉ともいう。）としては、例えば、溶湯を脱ガス室で脱ガス用攪拌体により回転攪拌してＨ２ガスや介在物などを除去し、この脱ガスした溶湯を、脱ガス室の底付近に設けた開口部より曲管を経由して流し出し、鋳型に出湯するものがある（下記特許文献１，２参照）。 In casting of an aluminum alloy or the like, a degassing process is performed to remove inclusions such as H 2 gas and oxide in the molten metal before casting. As a degassing apparatus (also referred to as a degassing furnace) that performs this degassing treatment, for example, the molten metal is rotated and stirred by a degassing stirrer in a degassing chamber to remove H 2 gas and inclusions, Some degassed molten metal flows out from an opening provided in the vicinity of the bottom of the degassing chamber via a curved pipe and is discharged into a mold (see Patent Documents 1 and 2 below).

また、溶湯を脱ガス処理槽でガス放出手段により回転攪拌してＨ２ガスや介在物などを除去し、この脱ガスした溶湯を、仕切板の下方に設けた開口から流し出し、鋳型に出湯するものがある（下記特許文献３参照）。 In addition, the molten metal is rotated and stirred by a gas releasing means in a degassing treatment tank to remove H 2 gas and inclusions, and the degassed molten metal is poured out from an opening provided below the partition plate and discharged into a mold. (See Patent Document 3 below).

特開平５−６５５２７号公報JP-A-5-65527 特開平５−６５５５４号公報JP-A-5-65554 特開２００３−２４０４４９号公報JP 2003-240449 A

しかし、上記特許文献１〜３に記載の脱ガス装置では、溶湯中のＨ２ガスや介在物などが十分に除去できないことがあった。
本発明者は、これらの原因を究明したところ、脱ガス室（又は脱ガス処理槽）の底付近に溶湯を流し出す開口（又は曲管）が設けてあると、攪拌されずに流れ出る溶湯があり、Ｈ２ガス（又は吹き込んだ不活性ガス）が溶湯中に残留してしまためであることが解かった。
また、曲管が底付近に配してあると、乱流を起こし、介在物が溶湯中に混入しやすいことが解かった。 However, in the degassing apparatuses described in Patent Documents 1 to 3, H 2 gas and inclusions in the molten metal may not be sufficiently removed.
The present inventor has investigated these causes, and if an opening (or a curved pipe) for flowing out the molten metal is provided near the bottom of the degassing chamber (or degassing treatment tank), the molten metal that flows without stirring is generated. Yes, it was found that the H 2 gas (or the inert gas blown in) was left in the molten metal.
Further, it was found that when the bent pipe is arranged near the bottom, turbulence is caused and inclusions are easily mixed into the molten metal.

そこで、本発明の目的は、溶湯中のＨ２ガスや介在物などの除去を十分に行なうことができる脱ガス装置を提供することにある。 Therefore, an object of the present invention is to provide a degassing apparatus that can sufficiently remove H 2 gas, inclusions, and the like in a molten metal.

本発明の脱ガス装置は、溶湯を攪拌体により回転攪拌して脱ガスをする脱ガス室を備えた脱ガス装置において、脱ガス室から溶湯を流し出す開口部を側壁の下方付近に設け、脱ガス室の底面に該開口部を囲う囲い板を、回流する溶湯の下流側を開放させて配したことを特徴とするものである。   The degassing apparatus of the present invention is a degassing apparatus having a degassing chamber for degassing by rotating and stirring the molten metal with a stirring body, and an opening for flowing the molten metal from the degassing chamber is provided near the lower side of the side wall. A shroud surrounding the opening is disposed on the bottom surface of the degassing chamber with the downstream side of the circulating molten metal being opened.

このようにすることにより、開口部の周囲に囲い板を設けたため、底の方にある溶湯は、攪拌されずに流れ出ることがなく、脱ガスを十分に行なうことができ、また、介在物も十分に除去できる。   In this way, since the enclosure plate is provided around the opening, the molten metal at the bottom can be sufficiently degassed without flowing out without being stirred, and the inclusions Can be removed sufficiently.

前記囲い板は、高さを、前記開口部の高さよりも高くするのがよく、これにより、溶湯が攪拌されずに流れ出ることをより防止できる。
前記脱ガス装置は、脱ガス室を、上面視略正方形状に形成し、前記開口部を、一側壁の下方中央付近に設け、囲い板を、上面視略Ｌ字状に形成することができる。
このように脱ガス室を上面視略正方形状に形成し、開口部を一側壁の下方中央付近に設けることにより、乱流を防ぐことができる。 The height of the enclosure plate is preferably higher than the height of the opening, thereby preventing the molten metal from flowing out without stirring.
In the degassing apparatus, the degassing chamber can be formed in a substantially square shape when viewed from above, the opening can be provided near the lower center of one side wall, and the surrounding plate can be formed in a substantially L shape when viewed from above. .
As described above, the degassing chamber is formed in a substantially square shape when viewed from above, and the opening is provided near the lower center of the one side wall, thereby preventing turbulent flow.

なお、本発明において、「回流する溶湯の下流側」とは、攪拌体の回転軸と開口部との間の溶湯の流れの下手側の意である。   In the present invention, the “downstream side of the circulating molten metal” means the lower side of the molten metal flow between the rotating shaft of the stirring member and the opening.

以下、本発明の一実施形態を、図面を用いて説明する。
図１は本発明の一実施形態の脱ガス装置の斜視図、図２は図１の装置の上面図、図３は図１の装置の側断面図である。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 is a perspective view of a degassing apparatus according to an embodiment of the present invention, FIG. 2 is a top view of the apparatus of FIG. 1, and FIG. 3 is a side sectional view of the apparatus of FIG.

本発明の一実施形態の脱ガス装置１は、図１〜３に示すように、周囲に側壁を設けた略直方体状の槽であり、長手方向の一側壁１ａに入湯口２を設け、この側壁１ａに対向する側壁１ｂに出湯口３を設けてあり、槽内は、側壁１ａと並行する側壁１ｃで仕切られ、入湯口２側を脱ガス室４、出湯口３側を出湯室５とし、脱ガス室４の容量を、出湯室５の容量よりも大きく形成してある。   As shown in FIGS. 1 to 3, the degassing apparatus 1 according to an embodiment of the present invention is a substantially rectangular parallelepiped tank provided with a side wall around it, and a hot water inlet 2 is provided on one side wall 1 a in the longitudinal direction. A hot water outlet 3 is provided on the side wall 1b opposite to the side wall 1a, and the inside of the tank is partitioned by a side wall 1c parallel to the side wall 1a. The hot water outlet 2 side is a degassing chamber 4, and the hot water outlet 3 side is a hot water chamber 5. The capacity of the degassing chamber 4 is larger than the capacity of the hot water chamber 5.

脱ガス室４は、入湯口２から入湯されたアルミニウム合金などの溶湯を、貯留し、室内に配してある攪拌体６で回転攪拌させ、不活性ガスを送り込んでＨ２ガスなどを脱ガスし、側壁１ｃの下方に設けた開口部７から流し出す箇所である。
本実施形態では、脱ガス室４１を、上面視略正方形状に形成してあり、このようにすれば、溶湯の滞留時間が均等なものとなり、不活性ガスを均質に分散させることができる。脱ガス室４１を、上面視略真円の円筒状に形成しても同様の効果が得られる。 The degassing chamber 4 stores a molten metal such as an aluminum alloy that has been introduced from the hot water inlet 2, and is rotated and stirred by a stirring body 6 disposed in the chamber, and an inert gas is fed to degas H 2 gas and the like. And it is a location which flows out from the opening part 7 provided under the side wall 1c.
In this embodiment, the degassing chamber 41 is formed in a substantially square shape when viewed from above, and in this way, the residence time of the molten metal becomes uniform, and the inert gas can be uniformly dispersed. The same effect can be obtained even if the degassing chamber 41 is formed in a substantially circular cylindrical shape when viewed from above.

入湯口２は、側壁１ａの上方略中央から外方に突出するように形成してあり、この上面２ａには溝２ｂを形成し、溶湯を脱ガス室４内に入湯できるようにしてある。   The hot water inlet 2 is formed so as to protrude outward from the substantially upper center of the side wall 1 a, and a groove 2 b is formed on the upper surface 2 a so that the molten metal can be poured into the degassing chamber 4.

攪拌体６は、円盤形状としてあり、この略中心に、上方に伸びた軸部６ａを設け、これを回転軸として回転し、溶湯を攪拌するようにしてある。軸部６ａは、円筒状に形成してあり、この内部６ｂを、不活性ガスが通り、軸部６ａの先端から不活性ガスを溶湯中に放出させるようにしてある。
攪拌体６は、脱ガス室４の略中心に配するのが好ましい。 The stirrer 6 has a disk shape, and a shaft portion 6a extending upward is provided at substantially the center of the stirrer 6 so that the stirrer 6 rotates around the rotating shaft to stir the molten metal. The shaft portion 6a is formed in a cylindrical shape, and an inert gas passes through the inside 6b so that the inert gas is discharged from the tip of the shaft portion 6a into the molten metal.
The stirrer 6 is preferably disposed substantially at the center of the degassing chamber 4.

開口部７は、側壁１ｃの下方中央付近に設けた略矩形状の孔であり、脱ガス室４と出湯室５とを連結し、溶湯を脱ガス室４から出湯室５に流し出す箇所である。開口部７の上限は、脱ガス室４の底面から攪拌体６の下面までの間に位置していることが好ましい。開口部７の下限は、脱ガス室４の底面４ａと略同じ高さや脱ガス室４の底面４ａから５〜１０ｍｍ程度の高さなどとすることが好ましい。底面４ａと略同じ高さにすると、脱ガス室４の溶湯の掃除がしやすくなり、底面４ａから５〜１０ｍｍ程度の高さにすると、沈んだ介在物が溶湯中に混入しにくくなる。
また、開口部７は、側壁１ｃの幅を４等分した時に、その中央の２つ幅分に形成することが好ましい。 The opening 7 is a substantially rectangular hole provided near the lower center of the side wall 1 c, connects the degassing chamber 4 and the hot water chamber 5, and flows the molten metal from the degassing chamber 4 to the hot water chamber 5. is there. The upper limit of the opening 7 is preferably located between the bottom surface of the degassing chamber 4 and the lower surface of the stirring body 6. It is preferable that the lower limit of the opening 7 is approximately the same height as the bottom surface 4 a of the degassing chamber 4 or about 5 to 10 mm from the bottom surface 4 a of the degassing chamber 4. When the height is substantially the same as the bottom surface 4a, the molten metal in the degassing chamber 4 can be easily cleaned. When the height is about 5 to 10 mm from the bottom surface 4a, the sunk inclusions are not easily mixed into the molten metal.
Moreover, it is preferable that the opening part 7 is formed in two central widths when the width of the side wall 1c is divided into four equal parts.

開口部７の脱ガス室４側の周囲には、上面視略Ｌ字形状の囲い板８が、底面４ａから上方に突出するように形成してある。囲い板８は、溶湯が回流せずに出湯室５に流れ込むことを防止するため、回流する溶湯の流れの上手側を閉塞し、下手側を開放するように配してある。つまり、図２に示すように、攪拌体６が、矢印Ａの方向に回転している場合、溶湯もこれと同じ方向に回転する。そうすると、攪拌体６の回転軸６ａと側壁１ｃとの間の溶湯の流れは、図２の下側から上側への流れになるため、この場合、囲い板８は、図２の下側が閉塞し、上側が開放するように配する。
囲い板８の高さは、特に限定するものではないが、開口部７の高さよりも高くするのが好ましく、具体的には、開口部７の上限よりも１０〜２０ｍｍ高くするのが好ましい。
囲い板８の少なくとも一面は、開口部７に向かう攪拌体６の回転の接線方向（図２のＸ方向）に対して、９０°±２５°の角度にするのが好ましく、特に８０°以上にするのが好ましい。本実施形態では９０°にしてある。これにより、滞留時間の短い溶湯が開口部７より、流出するのを防止することができる。
本実施形態では、囲い板８は、上面視略Ｌ字形状に形成したが、これに限定するものではなく、図４に示すように、平板の囲い板８ａを傾斜状に配してもよく、この場合、囲い板８の一面は、開口部７に向かう攪拌体６の回転の接線方向（図４のＹ方向）に対して、７０°の角度にしてある。 Around the degassing chamber 4 side of the opening 7, a substantially L-shaped enclosure plate 8 is formed so as to protrude upward from the bottom surface 4a. The shroud 8 is arranged so as to block the upper side of the flowing molten metal and open the lower side in order to prevent the molten metal from flowing into the hot water discharge chamber 5 without circulating. That is, as shown in FIG. 2, when the stirrer 6 rotates in the direction of arrow A, the molten metal also rotates in the same direction. Then, the flow of the molten metal between the rotating shaft 6a of the stirrer 6 and the side wall 1c flows from the lower side to the upper side in FIG. 2, and in this case, the lower side of FIG. , Arrange so that the upper side is open.
The height of the surrounding plate 8 is not particularly limited, but is preferably higher than the height of the opening 7, and specifically, 10 to 20 mm higher than the upper limit of the opening 7.
At least one surface of the shroud 8 is preferably at an angle of 90 ° ± 25 ° with respect to the tangential direction of rotation of the stirrer 6 toward the opening 7 (the X direction in FIG. 2), in particular 80 ° or more. It is preferable to do this. In this embodiment, the angle is 90 °. Thereby, it is possible to prevent the molten metal having a short residence time from flowing out from the opening 7.
In the present embodiment, the enclosure plate 8 is formed in a substantially L shape when viewed from above. However, the embodiment is not limited to this, and a flat enclosure plate 8a may be inclined as shown in FIG. In this case, one surface of the enclosure plate 8 is at an angle of 70 ° with respect to the tangential direction (Y direction in FIG. 4) of the rotation of the stirrer 6 toward the opening 7.

出湯室５は、脱ガス室４から流れ込んできた溶湯を貯留し、出湯口３から鋳型（図示せず）などに流し込む箇所である。   The hot water chamber 5 is a place where the molten metal flowing from the degassing chamber 4 is stored and poured from the hot water outlet 3 into a mold (not shown).

出湯口３は、装置１の側面１ｂの上方略中央から外方に突出するように形成してあり、この上面３ａには溝３ｂを形成してあり、溶湯を鋳型などに出湯できるようにしてある。   The hot water outlet 3 is formed so as to protrude outward from approximately the upper center of the side surface 1b of the apparatus 1, and a groove 3b is formed on the upper surface 3a so that the molten metal can be discharged into a mold or the like. is there.

なお、図２に示す、符号９は、そうじ口であり、この内側を脱ガス室４と連なるように適宜深さに凹まして凹部９ａを形成し、ここに浮遊した介在物などを集め、除去することができる。   In addition, the code | symbol 9 shown in FIG. 2 is a cleansing mouth, this inside is continuously dented in depth so that it may continue with the degassing chamber 4, the recessed part 9a is formed, and the inclusions etc. which floated here are collected and removed. can do.

上記装置１は、入湯口２から溶湯を脱ガス室４に流し込み、貯留し、攪拌体６により溶湯を回転攪拌させつつ、不活性ガスを放出して脱ガスする。この際、出湯室５と連結した開口部７の周囲には囲い板８を設けてあるため、溶湯が攪拌されずに流れ出ることがなく、溶湯の脱ガスを十分に行なうことができる。
アルミニウム溶湯を装置１に流し込んだ場合は、流入量と流出量のバランスを取り、脱ガス室４内の滞留時間を５〜１０分にすることが好ましい。 In the apparatus 1, the molten metal is poured into the degassing chamber 4 from the hot water inlet 2 and stored, and the molten metal is rotated and stirred by the stirring body 6, and the inert gas is released and degassed. At this time, since the enclosure plate 8 is provided around the opening 7 connected to the hot water discharge chamber 5, the molten metal does not flow without being stirred, and the molten metal can be sufficiently degassed.
When the molten aluminum is poured into the apparatus 1, it is preferable to balance the inflow amount and the outflow amount and set the residence time in the degassing chamber 4 to 5 to 10 minutes.

また、従来では、脱ガス室５の底面に曲管などを配することがあり、溶湯が乱流を起こし、Ｈ２ガスや介在物などが溶湯中に混入してしまうことがあったが、本発明では、溶湯が乱流を起こすことがなく、Ｈ２ガスや介在物などが溶湯中に混入しにくくなる。 In addition, conventionally, a bent pipe or the like may be disposed on the bottom surface of the degassing chamber 5, the molten metal may cause turbulent flow, and H 2 gas or inclusions may be mixed in the molten metal. In the present invention, the molten metal does not cause turbulent flow, and H 2 gas, inclusions, and the like are hardly mixed into the molten metal.

なお、本実施形態では、出湯室を設けた脱ガス装置としてあるが、これに限定するものではなく、脱ガス室が連続した二槽式などにすることもできる。   In the present embodiment, the degassing apparatus is provided with a hot water discharge chamber, but the present invention is not limited to this, and a two-tank type with continuous degassing chambers may be used.

次に、本発明の他の実施形態を、図面を用いて説明する。なお、上記実施形態と同一名称の部位は、上記と同様な構成ともすることができ、同様な作用効果を有するものである。
図５は本発明の他の実施形態の脱ガス装置の上面図である。 Next, another embodiment of the present invention will be described with reference to the drawings. In addition, the site | part of the same name as the said embodiment can also be set as the same structure as the above, and has the same effect.
FIG. 5 is a top view of a degassing apparatus according to another embodiment of the present invention.

本発明の他の実施形態の脱ガス装置１１は、図５に示すように、周囲に側壁を設けた略立方体状の槽であり、一側壁１１ａに入湯口２１を設け、この側壁１１ａに対向する側壁１１ｂに開口部７１を設けてあり、槽内に、攪拌体６１を配して脱ガス室４１としてある。   As shown in FIG. 5, the degassing apparatus 11 according to another embodiment of the present invention is a substantially cubic tank provided with a side wall around it, and is provided with a hot water inlet 21 on one side wall 11a and facing this side wall 11a. An opening 71 is provided in the side wall 11b. The degassing chamber 41 is provided with a stirring body 61 in the tank.

脱ガス室４１は、入湯口２１から入湯されたアルミニウム合金などの溶湯を、貯留し、室内に配してある攪拌体６１で回転攪拌させ、不活性ガスを送り込んで脱ガスし、側壁１１ｂの下方に設けた開口部７１から流し出す箇所である。   The degassing chamber 41 stores a molten metal such as an aluminum alloy that has been poured from the hot water inlet 21, is rotated and stirred by a stirring body 61 disposed in the chamber, and is degassed by feeding an inert gas, This is a portion that flows out from the opening 71 provided below.

入湯口２１は、側壁１１ａの上方一端側（図１では下側）から外方に突出するように形成してあり、この上面２１ａには溝２１ｂを形成し、溶湯を脱ガス室４１内に入湯できるようにしてある。   The hot water inlet 21 is formed so as to protrude outward from one upper end side (lower side in FIG. 1) of the side wall 11a, and a groove 21b is formed on the upper surface 21a so that the molten metal is introduced into the degassing chamber 41. You can enter the hot water.

攪拌体６１は、上記実施形態の攪拌体６と同様のものを用いることができる。   The stirrer 61 may be the same as the stirrer 6 of the above embodiment.

開口部７１は、側壁１１ｂの下方他端側（図１では上側）に設けた略矩形状の孔であり、脱ガス室４１から溶湯を流し出せるようにしてある。   The opening 71 is a substantially rectangular hole provided on the lower other end side (upper side in FIG. 1) of the side wall 11 b so that the molten metal can flow out from the degassing chamber 41.

開口部７１の脱ガス室４１側の周囲には、矩形板状の囲い板８１が、底面４１ａから上方に突出するように形成してある。囲い板８１は、溶湯が回流せずに流れ出ることを防止するため、回流する溶湯の流れの上手側を閉塞し、下手側を開放するように配してある。つまり、図５に示すように、攪拌体６１が、矢印Ｂの方向に回転している場合、溶湯もこれと同じ方向に回転する。そうすると、攪拌体６１の軸部６１ａと側壁１１ｂとの間の溶湯の流れは、図５の上側から下側への流れになるため、この場合、囲い板８１は、図５の上側が閉塞し、下側が開放するように配する。
囲い板８１の一面は、開口部７１に向かう攪拌体６１の回転の接線方向（図５のＺ方向）に対して、９０°の角度にしてある。 A rectangular plate-shaped enclosure 81 is formed around the opening 71 on the degassing chamber 41 side so as to protrude upward from the bottom surface 41a. In order to prevent the molten metal from flowing out without circulating, the surrounding plate 81 is arranged so as to close the upper side of the flowing molten metal and open the lower side. That is, as shown in FIG. 5, when the stirrer 61 rotates in the direction of the arrow B, the molten metal also rotates in the same direction. Then, the flow of the molten metal between the shaft portion 61a and the side wall 11b of the stirrer 61 becomes a flow from the upper side to the lower side in FIG. 5, and in this case, the upper side of FIG. , Arrange so that the lower side is open.
One surface of the surrounding plate 81 is at an angle of 90 ° with respect to the tangential direction (Z direction in FIG. 5) of the rotation of the stirrer 61 toward the opening 71.

図５に示す、符号９１は、そうじ口であり、上記実施態様のそうじ口９と同様に、凹部９１ａに浮遊した介在物などを集め、除去することができる。   Reference numeral 91 shown in FIG. 5 is a threading mouth, and the inclusions floating in the recess 91a can be collected and removed in the same manner as the threading mouth 9 of the above embodiment.

上記装置１１は、入湯口２１から溶湯を脱ガス室４１に流し込み、貯留し、攪拌体６１により溶湯を回転攪拌させ、不活性ガスを送り込んで脱ガスする。この際、開口部７１の周囲には囲い板８１を設けてあるため、溶湯が攪拌されずに流れ出ることがなく、溶湯の脱ガスを十分に行なうことができる。   The apparatus 11 flows the molten metal into the degassing chamber 41 through the hot water inlet 21 and stores it, and the molten metal is rotationally stirred by the stirring body 61 to send out an inert gas and degas. At this time, since the surrounding plate 81 is provided around the opening 71, the molten metal does not flow out without being stirred, and the molten metal can be sufficiently degassed.

本実施形態では、入湯口２１を側壁１１ａの上方一端側に設け、開口部７１を側壁１１ｂの下方他端側に設けてあり、このように入湯口２１と開口部７１とを対角線上に設けてあるので溶湯の攪拌時間が長くなり、脱ガスを十分に行なうことができる。   In the present embodiment, the hot water inlet 21 is provided on one upper end side of the side wall 11a, and the opening 71 is provided on the lower other end side of the side wall 11b. Thus, the hot water inlet 21 and the opening 71 are provided diagonally. Therefore, the stirring time of the molten metal becomes longer and the degassing can be sufficiently performed.

なお、図１〜５に示した装置は、本発明の特徴を理解しやすくするため、蓋材を省略して記載してあり、本来では、上方を蓋材で覆い使用するものである。   In addition, in order to make it easy to understand the features of the present invention, the apparatus shown in FIGS. 1 to 5 is described with the lid material omitted, and is originally used by covering the top with the lid material.

本発明の脱ガス装置の一実施形態を示した斜視図である。It is the perspective view which showed one Embodiment of the degassing apparatus of this invention. 図１に示した脱ガス装置の上面図である。It is a top view of the degassing apparatus shown in FIG. 図１に示した脱ガス装置の側断面図である。It is a sectional side view of the degassing apparatus shown in FIG. 本発明の脱ガス装置の変形例を示した側面図である。It is the side view which showed the modification of the degassing apparatus of this invention. 本発明の脱ガス装置の他の実施形態を示した上面図である。It is the top view which showed other embodiment of the degassing apparatus of this invention.

符号の説明Explanation of symbols

１脱ガス装置
１ａ側壁
１ｂ側壁
１ｃ側壁
２入湯口
２ａ上面
２ｂ溝
３出湯口
３ａ上面
３ｂ溝
４脱ガス室
４ａ底面
５出湯室
６攪拌体
６ａ回転軸
６ｂ内部
７開口部
８，８ａ囲い板
９そうじ口
９ａ凹部 DESCRIPTION OF SYMBOLS 1 Degassing apparatus 1a side wall 1b side wall 1c side wall 2 hot water inlet 2a upper surface 2b groove 3 hot water outlet 3a upper surface 3b groove 4 degassing chamber 4a bottom surface 5 hot water outlet chamber 6 stirring body 6a rotating shaft 6b internal 7 opening 8, 8a Cleansing mouth 9a recess

Claims (3)

溶湯を攪拌体により回転攪拌して脱ガスをする脱ガス室を備えた脱ガス装置において、脱ガス室から溶湯を流し出す開口部を側壁の下方付近に設け、脱ガス室の底面に該開口部を囲う囲い板を、回流する溶湯の下流側を開放させて配した脱ガス装置。   In a degassing apparatus having a degassing chamber for degassing by rotating and stirring the molten metal with a stirring body, an opening for flowing the molten metal from the degassing chamber is provided near the lower side of the side wall, and the opening is formed on the bottom surface of the degassing chamber. A degassing device in which a shroud that surrounds the part is disposed with the downstream side of the circulating molten metal open. 囲い板の高さを、前記開口部の高さよりも高くした請求項１に記載の脱ガス装置。   The degassing apparatus according to claim 1, wherein the height of the shroud is higher than the height of the opening. 脱ガス室を、上面視略正方形状に形成し、前記開口部を、一側壁の下方中央付近に設け、囲い板を、上面視略Ｌ字状に形成した請求項１又は２に記載の脱ガス装置。   3. The degassing chamber according to claim 1, wherein the degassing chamber is formed in a substantially square shape when viewed from above, the opening is provided near the lower center of one side wall, and the surrounding plate is formed in a substantially L shape when viewed from above. Gas equipment.
JP2007009858A 2007-01-19 2007-01-19 Degassing device Active JP4205131B2 (en)

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CN200880001324XA CN101568397B (en) 2007-01-19 2008-01-18 Degassing apparatus
PCT/JP2008/000050 WO2008087865A1 (en) 2007-01-19 2008-01-18 Degassing apparatus

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010084213A (en) * 2008-10-01 2010-04-15 Nippon Light Metal Co Ltd Method and apparatus for cleaning molten metal
JP2013063472A (en) * 2013-01-18 2013-04-11 Showa Denko Kk Molten aluminum treatment apparatus
CN103495709A (en) * 2013-09-18 2014-01-08 安徽电气集团股份有限公司 High-temperature melt conveyer
JP2014184487A (en) * 2013-03-25 2014-10-02 Mitsui Mining & Smelting Co Ltd Degassing device
CN110756750A (en) * 2019-11-26 2020-02-07 扬州瑞斯乐复合金属材料有限公司 Isothermal casting method of wrought aluminum alloy round ingot

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Publication number Priority date Publication date Assignee Title
CN116475365A (en) 2022-01-13 2023-07-25 米尼翁大学 Apparatus for ultrasonic treatment and transfer of molten metal and method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010084213A (en) * 2008-10-01 2010-04-15 Nippon Light Metal Co Ltd Method and apparatus for cleaning molten metal
JP2013063472A (en) * 2013-01-18 2013-04-11 Showa Denko Kk Molten aluminum treatment apparatus
JP2014184487A (en) * 2013-03-25 2014-10-02 Mitsui Mining & Smelting Co Ltd Degassing device
CN103495709A (en) * 2013-09-18 2014-01-08 安徽电气集团股份有限公司 High-temperature melt conveyer
CN110756750A (en) * 2019-11-26 2020-02-07 扬州瑞斯乐复合金属材料有限公司 Isothermal casting method of wrought aluminum alloy round ingot

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CN101568397B (en) 2011-05-11
JP4205131B2 (en) 2009-01-07

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