JP2573608Y2 - Metal filtration tank - Google Patents
Metal filtration tankInfo
- Publication number
- JP2573608Y2 JP2573608Y2 JP1996002835U JP283596U JP2573608Y2 JP 2573608 Y2 JP2573608 Y2 JP 2573608Y2 JP 1996002835 U JP1996002835 U JP 1996002835U JP 283596 U JP283596 U JP 283596U JP 2573608 Y2 JP2573608 Y2 JP 2573608Y2
- Authority
- JP
- Japan
- Prior art keywords
- refractory
- wall
- molten metal
- filtration
- filtration chamber
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Filtering Materials (AREA)
- Ceramic Products (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、アルミニウム、亜鉛ま
たは銅等の金属溶湯の濾過槽に係るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filtration tank for molten metal such as aluminum, zinc or copper.
【０００２】[0002]
【従来技術】従来公知の、特開昭６０−１４２１９０号
公報には、金属溶湯と接触する全ての部分を、窒化珪素
結合炭化珪素耐火物にした発明が記載されている。ま
た、従来公知の、特開平２−３４７３２号公報には、濾
過室の内面を、窒化珪素結合の炭化珪素やアルミナ質レ
ンガ等のＳｉＯ２が５％以下の耐火物にした発明が記載
されている。2. Description of the Related Art A conventionally known Japanese Patent Application Laid-Open No. Sho 60-142190 describes an invention in which all parts in contact with a molten metal are made of silicon nitride-bonded silicon carbide refractories. Japanese Patent Application Laid-Open No. 2-34732 discloses a conventional invention in which the inner surface of a filtration chamber is made of a refractory containing 5% or less of SiO 2, such as silicon carbide bonded to silicon nitride or alumina brick. I have.
【０００３】[0003]
【考案が解決しようとする課題】前記公知のものは、金
属溶湯と接触する全ての部分を、窒化珪素結合炭化珪素
耐火物にするか、濾過室の内面を、窒化珪素結合の炭化
珪素やアルミナ質レンガ等のＳｉＯ２が５％以下の耐火
物にした発明で、内壁を前記のレンガ内壁に、外壁をセ
ラミック製耐火外壁に、内壁と外壁との間をキャスタブ
ル層にし、前後壁、左右壁の外側は薄鉄板で包囲して形
成してあるが、窒化珪素結合炭化珪素耐火物のものは、
長年使用していると、内壁を構成する各層の間に酸化に
よる隙間ができるという課題があった。隙間ができる原
因は、熱膨張と熱収縮によるといわれていたが、酸化も
原因の一つになっている。即ち、窒化珪素結合炭化珪素
耐火物は、アルミニウム等の溶湯に対しては極めて強い
耐食性を示し、また、酸・アルカリに対しても強いとい
う特性を示しているが、酸化による膨張には問題があ
る。濾過層の上部の約５分の１程は金属溶湯は充満され
ず、ヒータの輻射により直接加熱されるから、その部分
は高酸化雰囲気となって、前記窒化珪素結合炭化珪素質
耐火物でも酸化して膨張し、隙間ができるのである。他
方、アルミナ質耐火物または珪酸塩結合炭化珪素質耐火
物題は、耐酸化性に優れた特性を有しているが、耐食性
においては窒化珪素結合炭化珪素耐火物には及ばない。In the above-mentioned prior art, all parts in contact with the molten metal are made of silicon nitride-bonded silicon carbide refractory, or the inner surface of the filtration chamber is made of silicon nitride or silicon carbide bonded with silicon nitride. in the invention SiO 2, such as quality bricks is less than 5% of the refractory, brick inner wall of said inner wall, an outer wall to the ceramic refractory outer wall, and between the inner and outer walls in castable layer, the wall before and after, lateral walls Outside is surrounded by a thin iron plate, but silicon nitride bonded silicon carbide refractories are
When used for many years, there is a problem that a gap due to oxidation is formed between the layers constituting the inner wall. The cause of the gap was said to be due to thermal expansion and thermal contraction, but oxidation is also one of the causes. That is, the silicon nitride-bonded silicon carbide refractory exhibits extremely strong corrosion resistance to molten metal such as aluminum and also has the property of being resistant to acids and alkalis, but has a problem in expansion due to oxidation. is there. About one fifth of the upper part of the filtration layer is not filled with the molten metal and is directly heated by the radiation of the heater, so that the part becomes a highly oxidizing atmosphere, and the silicon nitride-bonded silicon carbide refractory is oxidized. It expands, creating a gap. On the other hand, alumina-based refractories or silicate-bound silicon carbide-based refractories have excellent oxidation resistance, but are not as good as silicon nitride-bonded silicon carbide refractories in corrosion resistance.
【０００４】[0004]
【課題を解決するための手段】よって、本考案は、耐火
物で形成された前壁９、後壁１０、左壁１１、右壁１２
より形成され外側の全部または一部は薄鉄板１３で包囲
してある四角状の濾過室６の一側に入湯口７を他側に出
湯口８を形成し、前記濾過室６内には、耐火物プレート
で形成された反出湯側板３と出湯側板４との間にセラミ
ックチューブ５を上下数段、左右数本掛け渡した濾過ユ
ニット２を収納し、前記濾過室６内にアルミニウム、亜
鉛または銅等の金属溶湯を入湯させヒータで加熱しなが
ら濾過するようにしたものにおいて、前記濾過室６のレ
ンガ内壁１４を、溶湯の入る部分は耐食性に優れた窒化
珪素結合炭化珪素質耐火物よりなる耐食性耐火物１７
に、溶湯が入らず前記ヒータの輻射熱を受ける部分を耐
酸化性に優れたアルミナ質耐火物または珪酸塩結合炭化
珪素質耐火物よりなる耐酸化性耐火物１８に形成した金
属濾過槽としたものである。Thus SUMMARY OF THE INVENTION, the present invention is, refractory
Front wall 9, rear wall 10, left wall 11, right wall 12 formed of objects
All or part of the outside is surrounded by a thin iron plate 13
One side of the square filtration chamber 6 has a hot water inlet 7 on the other side.
A gate 8 is formed, and a refractory plate is provided in the filtration chamber 6.
Between the hot-water tapping side plate 3 and the hot-water tapping side plate 4
Filter tube in which several vertical and horizontal tubes 5 are laid.
The knit 2 is stored, and aluminum,
Add molten metal such as lead or copper and heat it with a heater.
In the filtration chamber 6,
The part where the molten metal enters the nga inner wall 14 is nitrided with excellent corrosion resistance.
Corrosion resistant refractory 17 made of silicon-bonded silicon carbide refractory
The part that receives the radiant heat of the heater without the molten metal
Alumina refractory or silicate-bonded carbonized with excellent oxidation properties
Gold formed on oxidation-resistant refractory 18 made of silicon-based refractory
It is a genus filtration tank .
【０００５】[0005]
【実施例】本考案の一実施例を図面により説明すると、
１はアルミニウム、亜鉛または銅等の溶湯を濾過する濾
過槽、２は濾過槽１内に収納する濾過ユニットである。
前記濾過ユニット２は、図３のように、炭化珪素質耐火
物プレートで形成された反出湯側板３と出湯側板４との
間に、アルミナ質ポーラスチューブで形成されたセラミ
ックチューブ５を上下数段、左右数本掛け渡した形状で
ある。BRIEF DESCRIPTION OF THE DRAWINGS FIG.
1 is a filtration tank for filtering a molten metal such as aluminum, zinc or copper, and 2 is a filtration unit housed in the filtration tank 1.
The filtration unit 2 is, as shown in FIG. 3, between the anti-tapping plate 3 and the tapping plate 4 formed of silicon carbide refractories plate, a ceramic tube 5 formed of alumina porous tube down several stages , The shape of which is crossed over several right and left.
【０００６】前記濾過ユニット２を収納する前記濾過槽
１は、大小種々の構造に形成されるが、図１、２に示し
たものは、前記濾過ユニット２を４組左右側に並列収納
できる濾過室６を有する大型である。したがって、濾過
室６の前後側は、濾過ユニット２の反出湯側板３と出湯
側板４の幅よりも稍大に形成されるが、左右側は長く形
成され、俯瞰形状は左右に長い長方形で、７は濾過室６
に至る入湯口、８は濾過室６よりの出湯口、９は濾過室
６の前壁、１０は濾過室６の後壁、１１は濾過室６の左
壁、１２は濾過室６の右壁で、全体は四角である。[0006] The filtration tank 1 for accommodating the filtration unit 2 is formed in various sizes, and the filtration tank 1 shown in FIGS. It is large with a chamber 6. Therefore, the front and rear sides of the filtration chamber 6 are connected to the hot water discharge side plate 3 of the filtration unit 2 and the hot water.
It is formed slightly larger than the width of the side plate 4, but is formed longer on the left and right sides, and the bird's-eye view is a rectangular shape that is long on the left and right.
Bathing opening leading to, 8 tap holes than filtration chamber 6, the front wall of the filtration chamber 6 9, the rear wall of the filtration chamber 6 10, 11 of the filtration chamber 6 left wall, 12 right wall of the filtration chamber 6 And the whole is square .
【０００７】前記前壁９、後壁１０、左壁１１、右壁１
２は内壁をレンガ内壁１４に、外壁をセラミック製耐火
外壁１５に、レンガ内壁１４とセラミック製耐火外壁１
５の間をキャスタブル層１６とした三層構造とし、前壁
９、左壁１１、右壁１２の外側の全部または一部が薄鉄
板１３で包囲してある。The front wall 9, rear wall 10, left wall 11, right wall 1
Reference numeral 2 denotes an inner wall as a brick inner wall 14, an outer wall as a ceramic fire-resistant outer wall 15, a brick inner wall 14 and a ceramic fire-resistant outer wall 1
The five layers have a castable layer 16 and a three-layer structure.
【０００８】しかして、前記濾過室６は、その約５分の
４に前記溶湯が入り、上約５分の１は露出する。露出部
分はヒータ２１からの輻射熱を受けて酸化しやすく、酸
化すると体積が膨張して損傷の原因となるので、本考案
は、溶湯の入る部分と、溶湯の入らない部分との材料を
変えて、溶湯の入らない部分の酸化を防止したものであ
る。Thus, about 4/5 of the filtration chamber 6 is filled with the molten metal, and about 1/5 of the upper part is exposed. The exposed portion is easily oxidized by receiving the radiant heat from the heater 21, and when oxidized, the volume expands and causes damage. Therefore, in the present invention, the material of the portion into which the molten metal enters and the portion into which the molten metal does not enter are changed. In addition, oxidation of the portion where the molten metal does not enter is prevented.
【０００９】即ち、レンガ内壁１４は、溶湯の入る部分
は耐食性に優れた窒化珪素結合炭化珪素質耐火物からな
る耐食性耐火物１７に、溶湯が入らず前記ヒータの輻射
熱を受ける部分を耐酸化性に優れたアルミナ質耐火物ま
たは珪酸塩結合炭化珪素質耐火物からなる耐酸化性耐火
物１８としたものである。１９は濾過槽１の蓋、２０は
下面、２２は連通孔である。That is, the portion of the brick inner wall 14 into which the molten metal enters the corrosion- resistant refractory 17 made of silicon nitride-bonded silicon carbide refractory having excellent corrosion resistance. Oxidation resistant refractory made of excellent alumina refractory or silicate-bound silicon carbide refractory
Object 18 . 19 is a cover of the filtration tank 1, 20 is a lower surface, and 22 is a communication hole.
【００１０】[0010]
【作用】次に作用を述べる。入湯口７よりアルミニウム
等の溶湯を供給すると、該溶湯は上下複数の連通孔２２
を通って、左右側の各濾過室６内に充満し、ヒータ２１
により加熱されつつセラミックチューブ５により濾過さ
れ、出湯口８より精製されて取出される。Next, the operation will be described. When molten metal such as aluminum is supplied from the inlet 7, the molten metal is supplied to a plurality of upper and lower communication holes 22.
To fill the left and right filtration chambers 6 with the heater 21.
The mixture is filtered by the ceramic tube 5 while being heated, and is purified and taken out from the tap hole 8.
【００１１】しかして、前記溶湯は、濾過室６の約５分
の４に充填され、上部の約５分の１は溶湯が入らず、溶
湯が入いらない部分は、ヒータ２１の輻射熱を直接受け
て加熱されるから、酸化されやすい状態であるが、本考
案は、溶湯の入らない部分をアルミナ質耐火物または珪
酸塩結合炭化珪素質耐火物よりなる耐酸化性耐火物１８
として材料を変えてあるから、酸化はみられず、酸化に
よる膨張を防ぎ、溶湯の入る部分は耐食性に優れた窒化
珪素結合炭化珪素質耐火物よりなる耐食性耐火物１７に
より形成されているので、よく恒久使用に耐えうる。The molten metal is filled in about four-fifths of the filtration chamber 6. About one-fifth of the upper part is not filled with the molten metal, and the part not filled with the molten metal receives the radiant heat of the heater 21 directly. However, in the present invention, the portion where the molten metal does not enter is made of an oxidation-resistant refractory 18 made of alumina refractory or silicate-bonded silicon carbide refractory.
Since the material is changed as above, oxidation is not observed, expansion due to oxidation is prevented, and the part where the molten metal enters is formed by the corrosion resistant refractory 17 made of silicon nitride bonded silicon carbide refractory having excellent corrosion resistance , Well can withstand permanent use.
【００１２】[0012]
【効果】前記のように、従来公知の、特開昭６０−１４
２１９０号公報には、金属溶湯と接触する全ての部分
を、窒化珪素結合炭化珪素耐火物にした発明が記載さ
れ、特開平２−３４７３２号公報には、濾過室の内面
を、窒化珪素結合の炭化珪素やアルミナ質レンガ等のＳ
ｉＯ２が５％以下の耐火物にした発明が記載されてい
る。しかし、全ての部分を、窒化珪素結合炭化珪素耐火
物にしたものは、ヒータにより加熱される溶湯の入らな
い部分の酸化に問題があり、全ての部分を、窒化珪素結
合の炭化珪素やアルミナ質レンガ等のＳｉＯ２が５％以
下の耐火物にしたものは、溶湯の入る部分の耐食性に問
題がある。しかるに、本考案は、耐火物で形成された前
壁９、後壁１０、左壁１１、右壁 １２より形成され外側
の全部または一部は薄鉄板１３で包囲してある四角状の
濾過室６の一側に入湯口７を他側に出湯口８を形成し、
前記濾過室６内には、耐火物プレートで形成された反出
湯側板３と出湯側板４との間にセラミックチューブ５を
上下数段、左右数本掛け渡した濾過ユニット２を取納
し、前記濾過室６内にアルミニウム、亜鉛または銅等の
金属溶湯を入湯させヒータで加熱しながら濾過するよう
にしたものにおいて、前記濾過室６のレンガ内壁１４
を、溶湯の人る部分は耐食性に侵れた窒化珪素結合炭化
珪素質耐火物よりなる耐食性耐火物１７に、溶湯が入ら
ず前記ヒータの輻射熱を受ける部分を耐酸化性に優れた
アルミナ質耐火物または珪酸塩結合炭化珪素質耐火物よ
りなる耐酸化性耐火物１８に形成した金属濾過槽とした
から、濾過室６は、耐火物で形成された前壁９、後壁１
０、左壁１１、右壁１２より形成され外側の全部または
一部は薄鉄板１３で包囲してある四角状としてあるので
堅牢であり、濾過室６の一側に入湯口７を他側に出湯口
８を形成したので円滑に金属溶湯を供給でき、前記濾過
室６内には、耐火物プレートで形成された反出湯側板３
と出湯側板４との間にセラミックチューブ５を上下数
段、左右数本掛け渡した濾過ユニット２を収納したから
濾過ができ、前記濾過室６内にアルミニウム、亜鉛また
は銅等の金属溶湯を入湯させヒータで加熱しながら濾過
するようにしたものにおいて、前記濾過室６のレンガ内
壁１４を、溶湯の入る部分は耐食性に優れた窒化珪素結
合炭化珪素質耐火物よりなる耐食性耐火物１７に、溶湯
が入らず前記ヒータの輻射熱を受ける部分を耐酸化性に
優れたアルミナ質耐火物または珪酸塩結合炭化珪素質耐
火物よりなる耐酸化性耐火物１８に形成したから、さら
に垣久的に使用させ得る効果を奏する。 As described above, Japanese Patent Application Laid-Open No.
Japanese Patent No. 2190 discloses an invention in which all parts in contact with a molten metal are made of silicon nitride-bonded silicon carbide refractories. Japanese Patent Application Laid-Open No. 2-34732 discloses that an inner surface of a filtration chamber is made of silicon nitride-bonded refractory. S such as silicon carbide and alumina brick
An invention in which iO 2 is made a refractory of 5% or less is described. However, when all parts are made of silicon nitride-bonded silicon carbide refractory, there is a problem in oxidation of a part heated by a heater, where the molten metal does not enter, and all parts are made of silicon nitride bonded with silicon nitride or alumina. Brick or the like made of a refractory material having 5% or less of SiO 2 has a problem in corrosion resistance in a portion where a molten metal enters. However, before the present invention is made of refractory,
Outside formed by wall 9, rear wall 10, left wall 11, right wall 12
All or part of the square is surrounded by a thin iron plate 13.
A hot water inlet 7 is formed on one side of the filtration chamber 6 and a hot water outlet 8 is formed on the other side,
The rejection formed by the refractory plate is provided in the filtration chamber 6.
A ceramic tube 5 is placed between the hot water side plate 3 and the hot water side plate 4.
The filtration unit 2 that has been laid several times vertically and several times left and right
And aluminum, zinc, copper or the like
Fill metal melt and filter while heating with heater
In the above, the brick inner wall 14 of the filtration chamber 6
The molten metal is silicon nitride bonded carbonized with corrosion resistance
The molten metal enters the corrosion-resistant refractory 17 made of silicon-based refractory.
The part receiving the radiant heat of the heater has excellent oxidation resistance
Alumina refractories or silicate-bonded silicon carbide refractories
A metal filtration tank formed on the oxidation resistant refractory 18
Therefore, the filtration chamber 6 has a front wall 9 and a rear wall 1 made of refractory.
0, all of the outside formed by the left wall 11 and the right wall 12 or
Some of the squares are surrounded by a thin iron plate 13.
It is robust, with the inlet 7 on one side of the filtration chamber 6 and the outlet on the other side
8, so that the molten metal can be supplied smoothly,
Inside the chamber 6 is a side tapping plate 3 made of a refractory plate.
And a vertical number of ceramic tubes 5 between
Because the filter unit 2 that was laid over several stages and left and right was stored
Filtration is possible, and aluminum, zinc or
Is filled with molten metal such as copper and filtered while heating with a heater
In the filter room 6 in the brick.
The wall 14 is made of silicon nitride with excellent corrosion resistance where the molten metal enters.
The corrosion-resistant refractory 17 made of silicon carbide refractory is
The part that receives the radiant heat of the heater without entering
Excellent alumina refractory or silicate bonded silicon carbide
Since it was formed into an oxidation-resistant refractory 18 made of fire,
It has an effect that can be used for a long time.
【図１】 縦断正面図。FIG. 1 is a longitudinal sectional front view.
【図２】 横断平面図。FIG. 2 is a cross-sectional plan view.
【図３】 濾過ユニットの縦断側面図。FIG. 3 is a vertical side view of a filtration unit.
１…濾過槽、２…濾過ユニット、３…反出湯側板、４…
出湯側板、５…セラミックチューブ、６…濾過室、７…
入湯口、８…出湯口、９…前壁、１０…後壁、１１…左
壁、１２…右壁、１３…薄鉄板、１４…レンガ内壁、１
５…セラミック製耐火外壁、１６…キャスタブル層、１
７…耐食性耐火物、１８…耐酸化性耐火物、１９…蓋、
２０…下面、２１…、ヒータ、２２…連通孔。 DESCRIPTION OF SYMBOLS 1 ... Filtration tank, 2 ... Filtration unit, 3 ... Side tapping plate , 4 ...
Hot water side plate , 5 ... ceramic tube, 6 ... filtration room, 7 ...
Hot water entrance , 8 ... Hot water outlet , 9 ... Front wall, 10 ... Rear wall, 11 ... Left wall, 12 ... Right wall, 13 ... Thin iron plate, 14 ... Brick inner wall, 1
5 ... ceramic refractory outer wall, 16 ... castable layer, 1
7 corrosion-resistant refractory, 18 oxidation-resistant refractory, 19 lid
20 ... lower surface, 21 ..., heater, 22 ... communication hole.
Claims (1)
左壁１１、右壁１２より形成され外側の全部または一部
は薄鉄板１３で包囲してある四角状の濾過室６の一側に
入湯口７を他側に出湯口８を形成し、前記濾過室６内に
は、耐火物プレートで形成された反出湯側析３と出湯側
析４との間にセラミックチューブ５を上下数段、左右数
本掛け渡した濾過ユニット２を収納し、前記濾過室６内
にアルミニウム、亜鉛または銅等の金属溶湯を入湯させ
ヒータで加熱しながら濾過するようにしたものにおい
て、前記濾過室６のレンガ内壁１４を、溶湯の入る部分
は耐食性に優れた窒化珪素結合炭化珪素質耐火物よりな
る耐食性耐火物１７に、溶湯が入らず前記ヒータの輻射
熱を受ける部分を耐酸化性に優れたアルミナ質耐火物ま
たは珪酸塩結合炭化珪素質耐火物よりなる耐酸化性耐火
物１８に形成した金属濾過槽。1. A front wall 9, a rear wall 10, made of a refractory.
All or part of the outside formed by left wall 11 and right wall 12
Is on one side of a square filtration chamber 6 surrounded by a thin iron plate 13.
The inlet 7 is formed on the other side with the outlet 8, and the inside of the filtration chamber 6 is formed.
Is the anti-outflow side plate 3 formed by the refractory plate and the outflow side
The upper and lower ceramic tubes 5 and the right and left
The filtration unit 2 which has been fully suspended is housed in the filtration chamber 6.
Into a molten metal such as aluminum, zinc or copper
Smell that was filtered while heating with a heater
The brick inner wall 14 of the filtration chamber 6 is
Is superior to silicon nitride-bonded silicon carbide refractories with excellent corrosion resistance.
The molten metal does not enter the corrosion-resistant refractory 17 and the radiation of the heater
Replace the heat-receiving part with alumina-based refractory with excellent oxidation resistance.
Oxidation-resistant refractory made of silicate-bonded silicon carbide refractories
A metal filtration tank formed on the material 18 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1996002835U JP2573608Y2 (en) | 1996-03-18 | 1996-03-18 | Metal filtration tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1996002835U JP2573608Y2 (en) | 1996-03-18 | 1996-03-18 | Metal filtration tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0932U JPH0932U (en) | 1997-01-17 |
| JP2573608Y2 true JP2573608Y2 (en) | 1998-06-04 |
Family
ID=17667557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1996002835U Expired - Lifetime JP2573608Y2 (en) | 1996-03-18 | 1996-03-18 | Metal filtration tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2573608Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49108998U (en) * | 1972-12-30 | 1974-09-18 | ||
| JPS5417879B2 (en) * | 1974-06-17 | 1979-07-03 | ||
| JPS51133402U (en) * | 1975-04-17 | 1976-10-27 | ||
| NO20170897A1 (en) * | 2017-05-31 | 2018-12-03 | Norsk Hydro As | Apparatus and method for applying ceramic foam filters for the removal of unwanted inclusions from metal melts |
-
1996
- 1996-03-18 JP JP1996002835U patent/JP2573608Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0932U (en) | 1997-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2573608Y2 (en) | Metal filtration tank | |
| US20020089099A1 (en) | Molten metal holding furnace baffle/heater system | |
| JPH0718755Y2 (en) | Inner wall of metal filtration room | |
| JPH09213461A (en) | Ceramic heater | |
| JP3192138U (en) | Non-ferrous metal melting and holding furnace | |
| JP3155780B2 (en) | Filtration device | |
| JP3426326B2 (en) | Molten metal heating device in molten metal filtration tank | |
| JPH04301042A (en) | Heating device for metal filter device | |
| JPH04295593A (en) | Induction furnace | |
| JP3659759B2 (en) | Molten metal filtration storage tank and its lining brick | |
| JP3793340B2 (en) | Metal filtration tank | |
| JP5336735B2 (en) | Preheating method for molten metal filtration device and molten metal filtration device | |
| JP2009045645A (en) | Molten metal holding furnace | |
| JP2020066037A (en) | Furnace wall structure of molten metal holding furnace | |
| JP3042874B2 (en) | Uniform preheater for molten metal filter | |
| JP2589796Y2 (en) | Discharge pipe in metal melt filtration tank | |
| CN211400762U (en) | Aluminum reflection smelting furnace | |
| JP3027604B2 (en) | Inner wall of metal filtration room | |
| TWI248974B (en) | Metal smelting furnace | |
| JPH0225269A (en) | Pressurization type pouring furnace | |
| AU656703B2 (en) | Tundish for molten alloy containing dense, undissolved alloying ingredient | |
| JPH0571878A (en) | Molten steel holding furnace | |
| JPH04202723A (en) | Outer peripheral wall for metal filtration chamber | |
| JPS6023097Y2 (en) | low pressure casting furnace | |
| JPS6221908Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |