JPS61180670A - Casting device - Google Patents
Casting deviceInfo
- Publication number
- JPS61180670A JPS61180670A JP1913585A JP1913585A JPS61180670A JP S61180670 A JPS61180670 A JP S61180670A JP 1913585 A JP1913585 A JP 1913585A JP 1913585 A JP1913585 A JP 1913585A JP S61180670 A JPS61180670 A JP S61180670A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- filter
- casting
- decompression chamber
- 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.)
- Granted
Links
- 238000005266 casting Methods 0.000 title claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 48
- 239000002184 metal Substances 0.000 claims abstract description 47
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 230000006837 decompression Effects 0.000 claims description 21
- 238000009749 continuous casting Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 abstract description 19
- 239000007788 liquid Substances 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 238000007872 degassing Methods 0.000 description 11
- 238000001816 cooling Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000009849 vacuum degassing Methods 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
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
- B22D43/001—Retaining slag during pouring molten metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、溶融金属中に含有される異物の除去のため
の構造が改良された鋳造装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a casting apparatus with an improved structure for removing foreign matter contained in molten metal.
［従来の技術Ｊ
従来より、各種の加工用金属の鋳造に際し、セラミック
フィルタなどのフィルタによる濾過を行なうことにより
、溶融金属中の異物の除去が試みられてきた。この種の
鋳造装置の例は、たとえば特開昭５１−１４２１６２号
に開示されている。[Prior Art J] Conventionally, when casting various metals for processing, attempts have been made to remove foreign substances from molten metal by filtering the metal with a filter such as a ceramic filter. An example of this type of casting apparatus is disclosed in, for example, Japanese Patent Application Laid-Open No. 51-142162.
他方、溶融金属を脱気する方法も種々提案されている。On the other hand, various methods for degassing molten metal have also been proposed.
この種の脱ガス方法の例は、たとえば日本金属学会会報
第２３巻第１１号（１９８４）ｐ、９４１に開示されて
いる。An example of this type of degassing method is disclosed in, for example, Bulletin of the Japan Institute of Metals, Vol. 23, No. 11 (1984), p. 941.
［発明が解決しようとする問題点］
しかしながら、フィルタを用いて濾過する方法にあって
は、濾過抵抗が大きく、したがって目詰まりが生じやす
く溶融金属を円滑に流すことが困難であるという問題が
あった。もっとも、フィルタの目を粗くすれば、溶融金
属を円滑に流すことは可能であるが、その場合には微細
な異物を除去することができず、フィルタを使用する意
味がなくなってしまう。[Problems to be Solved by the Invention] However, the method of filtration using a filter has a problem in that the filtration resistance is large, and therefore clogging is likely to occur and it is difficult to flow the molten metal smoothly. Ta. However, it is possible to make the molten metal flow smoothly by making the filter mesh coarse, but in that case, fine foreign matter cannot be removed, and the use of the filter becomes meaningless.
他方、脱ガス゛方法では、汚染を防ぐためには真空脱気
が好ましい。しかしながら、真空脱気においては、注入
側の溶融材料が急速に流入しやすく、したがって注湯調
整などの複雑な調整操作および制御を必要とづるため、
連続鋳造が極めて困難であった。On the other hand, in degassing methods, vacuum degassing is preferred to prevent contamination. However, in vacuum deaeration, the molten material on the injection side tends to flow in rapidly, which requires complex adjustment operations and controls such as pouring adjustment.
Continuous casting was extremely difficult.
それゆえに、この発明の目的は、目の細かなフィルタを
用いても目詰まりを生じず、したがって微細な異物を効
果的に除去ｔ、８ことができ、かつ脱気しつつ連続鋳造
することが可能な、鋳造装置を提供することにある。Therefore, an object of the present invention is to prevent clogging even when using a fine-mesh filter, to effectively remove minute foreign matter, and to perform continuous casting while degassing. Our goal is to provide a possible casting device.
［問題点を解決するための手段］
この発明は、上記問題点を解消すべくなされたものであ
り、その要旨とするところは、溶融金属を濾過するため
のフィルタと、フィルタの溶融金属が供給される側の面
とは反対側の面に接して設けられた減圧室と、減圧全の
次段側に連結された鋳造部とを備えることを特徴とする
、鋳造ＶＲＩｔである。[Means for Solving the Problems] The present invention has been made to solve the above problems, and its gist is to provide a filter for filtering molten metal, and a filter for filtering molten metal. This is a casting VRIt characterized by comprising a decompression chamber provided in contact with a surface on the opposite side to the surface on which the pressure is applied, and a casting part connected to the next stage side of the decompression chamber.
鋳造部は、連続鋳３ｉ！１部であってもよく、ディスク
リートな鋳造部であってもよい。また、フィルタの近傍
に、加熱手段を設けてもよく、それによって湾部のフィ
ルタの通過をより一層円滑にすることができる。The casting department uses continuous casting 3i! It may be one part or it may be a discrete casting part. Further, a heating means may be provided near the filter, thereby making it possible to pass through the filter in the bay part even more smoothly.
［作用１
この発明でｔよ、フィルタの溶融金属の供給される側の
面と反対側の而に接して減圧室が設けられているため、
フィルタの両面におけや圧力差による濾過が円滑に行な
われる。また、フィルタを減圧室に接して設けられてい
るため、減圧室内で脱気操作を行なったとしても溶融金
属の供結速度はフィルタにより抑制され、溶湯の過剰な
流入が防止される。[Effect 1] In this invention, since a decompression chamber is provided in contact with the surface of the filter on the opposite side to the side to which molten metal is supplied,
Filtration is performed smoothly on both sides of the filter and due to the pressure difference. Further, since the filter is provided in contact with the decompression chamber, even if a degassing operation is performed in the decompression chamber, the rate of molten metal connection is suppressed by the filter, and excessive inflow of molten metal is prevented.
［実施例の説明］
図面は、この発明の一実施例の概略を示す縦断面図であ
る。[Description of Embodiment] The drawing is a vertical sectional view schematically showing an embodiment of the present invention.
図において、溶融金属Ｗ１１内には溶融金属２が貯留さ
れている。該溶融金属槽１の底部にはテーバの付けられ
た貫通孔１ａが形成されており、該貫通孔１ａを閉成し
得るストッパ３が該溶融金属槽１内に設けられている。In the figure, molten metal 2 is stored in molten metal W11. A tapered through hole 1a is formed at the bottom of the molten metal tank 1, and a stopper 3 is provided in the molten metal tank 1 to close the through hole 1a.
ストッパ３は、溶融金属２の供給速度を調整するために
設けられている １ものであり、溶融金属Ｗ！１
から溶融金属２を流通すｔｉう場合には図示のように貫
通孔１ａがら離間されており、他方溶融金属２の供給を
停止する際には、貫通孔１ａを開成するように移動され
る。The stopper 3 is provided to adjust the supply speed of the molten metal 2, and the stopper 3 is provided to adjust the supply speed of the molten metal W! 1
When the molten metal 2 is to be passed through the molten metal 2, the through hole 1a is spaced apart from the through hole 1a as shown in the figure, and on the other hand, when the supply of the molten metal 2 is to be stopped, the through hole 1a is moved to open.
溶融金属槽１の下方には、筒状部４が配置されており、
該筒状部４の上方には筒、状部４を開成、するようにセ
ラミックフィルタ５が配置されている。A cylindrical part 4 is arranged below the molten metal tank 1,
A ceramic filter 5 is disposed above the cylindrical portion 4 so as to open the cylindrical portion 4 .
セラミックフィルタ５は、フィル・り取付部材６上に固
定することにより筒状部４内に位置決めされてる。した
がって、溶融金属槽１から供給された溶融金属２は、筒
状部４内のセラミックフィルタ５の上部に一旦貯留され
る。The ceramic filter 5 is positioned within the cylindrical portion 4 by fixing it on a filter mounting member 6 . Therefore, the molten metal 2 supplied from the molten metal tank 1 is temporarily stored in the upper part of the ceramic filter 5 in the cylindrical part 4.
なお、セラミックフィルタ５の近傍では、筒状部４の周
囲に加熱装ｗ７が配置されている。加熱装置ｆ７は、セ
ラミックフィルタ５の供給側に貯留された溶融金属２の
凝固を防止し、セラミツフッ、イルタ５による濾過を円
滑とするために設けられているものである。In addition, in the vicinity of the ceramic filter 5, a heating device w7 is arranged around the cylindrical portion 4. The heating device f7 is provided to prevent the molten metal 2 stored on the supply side of the ceramic filter 5 from solidifying and to facilitate filtration by the ceramic filter 5.
セラミックフィルタ５の溶融金属が供給される側とは反
対側の面に接して、減圧室８が設けられている。該減圧
室８には、開口８ａが形成されており、該開口８ａを通
じて図示しない減圧手段により吸引されることにより、
減圧室８内が減圧下に保たれる。したがって、セラミッ
クフィルタ５における溶融金属２の濾過に際しては、セ
ラミックフィルタ５の両側において圧力差が生じている
。A decompression chamber 8 is provided in contact with the surface of the ceramic filter 5 opposite to the side to which molten metal is supplied. An opening 8a is formed in the decompression chamber 8, and by being sucked through the opening 8a by a decompression means (not shown),
The inside of the decompression chamber 8 is maintained under reduced pressure. Therefore, when the molten metal 2 is filtered by the ceramic filter 5, a pressure difference is generated on both sides of the ceramic filter 5.
よって、微細な異物を除去すべく、目の細かなセラミッ
クフィルタ５を用いた場合であっても、溶融金属２の濾
過は円滑に行ない得ることがわかる。Therefore, it can be seen that even when the fine-mesh ceramic filter 5 is used to remove minute foreign matter, the molten metal 2 can be smoothly filtered.
筒状部４の下方では、減圧室８に、鋳造部１０が連結さ
れている。鋳造部１０では、筒状部４の周囲に冷ｕ１装
置１１が配置されており、したがってセラミックフィル
タ５で濾過され液滴２ａとなって、あるいは壁面を伝っ
て減圧室８内を落下した溶融金Ｊｉ１２は、冷却装ｆｆ
１Ｆ１１が取付けられた部分において凝固し、鋳塊１２
となる。Below the cylindrical part 4, a casting part 10 is connected to a reduced pressure chamber 8. In the casting section 10, a cooling u1 device 11 is arranged around the cylindrical section 4, so that the molten metal that has been filtered by the ceramic filter 5 and turned into droplets 2a or that has fallen down inside the decompression chamber 8 along the wall surface. Ji12 has a cooling system ff
The ingot 12 solidifies in the part where 1F11 is attached.
becomes.
なお、冷却装！１１１の下方には冷却シヤワー１３．１
３・・・が設けられており、さらに下方には鋳塊１２を
送るための駆動ロール１４．１４が設けられている。In addition, cooling equipment! Below 111 is a cooling shower 13.1
3... are provided, and drive rolls 14, 14 for feeding the ingot 12 are further provided below.
この実施例では、脱気操作は、セラミックフィルタ５の
下方に接して設けられた減圧室８内で行なわれるため、
脱気操作を行なったとしても溶融金属２の供給速度は、
セラミックフィルタ５により抑制される。したがって、
脱気による溶融金属２の過剰な供給は確実に防止され、
そのため脱気操作を行なう減圧室８に鋳造部１０を連結
することが可能とされている。よって、鋳造部１０が連
続鋳造部であっても、フィルタによる貢物の除去および
減圧室８内における脱気操作を行ないつつ、連続鋳造を
行なうことが可能とされている。In this embodiment, the degassing operation is performed in the decompression chamber 8 provided below and in contact with the ceramic filter 5.
Even if the degassing operation is performed, the supply rate of molten metal 2 is
This is suppressed by the ceramic filter 5. therefore,
Excessive supply of molten metal 2 due to degassing is reliably prevented,
Therefore, it is possible to connect the casting section 10 to the decompression chamber 8 in which the degassing operation is performed. Therefore, even if the casting section 10 is a continuous casting section, it is possible to carry out continuous casting while removing the tribute by the filter and degassing the inside of the decompression chamber 8.
次に、図面に示した装置を用いた具体的実験結果につき
説明する。Next, specific experimental results using the apparatus shown in the drawings will be explained.
フィルタ５として、焼結カーボンを主成分とする最大口
径２０μｍのセラミックフィルタを用い、かつ真空ポン
プにより減圧室８内を減圧しつつ、Ａｆｌ−１重置％３
ｉ合金を連続鋳造した。As the filter 5, a ceramic filter with a maximum diameter of 20 μm containing sintered carbon as a main component was used, and while reducing the pressure in the decompression chamber 8 with a vacuum pump, Afl-1 was superimposed by %3.
i alloy was continuously cast.
上述のようにして冑られた合金塊を熱間押出し、伸線、
剥離、溶体化処理および中間焼鈍などの熱処理を施し、
３０μｍ径の線材に加工したところ、フィルタ５を使用
しない従来の脱気のみを行なう方法に比べて、１断線あ
たりの伸Ｉｉ１重量が約３倍となることが確かめられた
。The alloy ingot prepared as described above is hot extruded, wire drawn,
Heat treatments such as peeling, solution treatment, and intermediate annealing are applied.
When processed into a wire with a diameter of 30 μm, it was confirmed that the weight of elongation Ii1 per wire breakage was approximately three times that of the conventional method of performing only deaeration without using the filter 5.
また、上述のようにして得られた鋳塊の重量についても
、フィルタ５を用いない場合に比べて１゜０２倍であり
、したがってガス欠陥が減少していることがうかがえた
。Furthermore, the weight of the ingot obtained as described above was also 1°02 times that of the case where the filter 5 was not used, indicating that gas defects were reduced.
なお、セラミックフィルタ５を用いても、真空吸引を行
なわない場合には、セラミックフィルタ５の濾過抵抗に
より溶融アルミニウム合金の濾過はほとんど不可能であ
ることが認められた。It has been found that even if the ceramic filter 5 is used, it is almost impossible to filter the molten aluminum alloy due to the filtration resistance of the ceramic filter 5 unless vacuum suction is performed.
「発明の効果」
この発明によれば、溶融金属を濾過するためのフィルタ
と、該フィルタの溶融金属の供給される側とは反対側の
面に接して設けられた減圧室と、減圧室の次段側に連結
された鋳造部とを備えるため、濾過抵抗の比較的大きな
目の細かいフィルタを用いたとしても溶融金属の濾過を
円滑に行なうことが可能となり、また減圧室がフィルタ
に接して配置されているため真空吸引したとしても溶融
金属の過剰流入を防止することができ、したがつて脱気
操作を行ないつつ連続鋳造を実施することが可能となる
。"Effects of the Invention" According to the present invention, there is provided a filter for filtering molten metal, a decompression chamber provided in contact with the surface of the filter opposite to the side to which the molten metal is supplied, and a decompression chamber. Since the casting part is connected to the next stage, it is possible to smoothly filter the molten metal even if a fine-mesh filter with relatively high filtration resistance is used, and the decompression chamber is in contact with the filter. Because of this arrangement, even if vacuum suction is applied, excessive inflow of molten metal can be prevented, and therefore continuous casting can be performed while performing degassing operations.
この発明は、各種金属箔、細線等に加工するための鋳塊
の＠造一般に利用し得るものであることを指摘しておく
。It should be pointed out that the present invention can be used generally for forming ingots for processing into various metal foils, thin wires, etc.
図面は、この発明の一実施例の概略を示す縦断面図であ
る。
図において、２は溶融金属、５はセラミックフィルタ、
７は加熱手段としての加熱装置、８は減圧室、１０は鋳
造部を示す。The drawing is a vertical sectional view schematically showing an embodiment of the present invention. In the figure, 2 is a molten metal, 5 is a ceramic filter,
Reference numeral 7 indicates a heating device as a heating means, 8 a decompression chamber, and 10 a casting section.
Claims (3)
タの溶融金属が供給される側とは反対側の面に接して設
けられた減圧室と、 該減圧室の次段側に連結された鋳造部とを備えることを
特徴とする、鋳造装置。(1) A filter for filtering molten metal, a decompression chamber provided in contact with the surface of the filter opposite to the side to which the molten metal is supplied, and a decompression chamber connected to the next stage side of the decompression chamber. A casting device comprising a casting section.
囲第１項記載の鋳造装置。(2) The casting apparatus according to claim 1, wherein the casting section is a continuous casting section.
る、特許請求の範囲第１項または第２項記載の鋳造装置
。(3) The casting apparatus according to claim 1 or 2, wherein heating means is provided near the filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60019135A JPH0659532B2 (en) | 1985-02-01 | 1985-02-01 | Continuous casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60019135A JPH0659532B2 (en) | 1985-02-01 | 1985-02-01 | Continuous casting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61180670A true JPS61180670A (en) | 1986-08-13 |
| JPH0659532B2 JPH0659532B2 (en) | 1994-08-10 |
Family
ID=11991014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60019135A Expired - Lifetime JPH0659532B2 (en) | 1985-02-01 | 1985-02-01 | Continuous casting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0659532B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007196264A (en) * | 2006-01-26 | 2007-08-09 | Fujikura Ltd | Method for producing rough drawn wire and device therefor |
| JP2008119558A (en) * | 2006-11-08 | 2008-05-29 | Japan Project:Kk | Dust-removing roll, manufacturing method thereof, and surface cleaning apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS552448A (en) * | 1978-06-21 | 1980-01-09 | Matsushita Electric Works Ltd | Massage instrument |
| JPS605829A (en) * | 1983-06-22 | 1985-01-12 | Nippon Light Metal Co Ltd | Filtering method of molten metal |
-
1985
- 1985-02-01 JP JP60019135A patent/JPH0659532B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS552448A (en) * | 1978-06-21 | 1980-01-09 | Matsushita Electric Works Ltd | Massage instrument |
| JPS605829A (en) * | 1983-06-22 | 1985-01-12 | Nippon Light Metal Co Ltd | Filtering method of molten metal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007196264A (en) * | 2006-01-26 | 2007-08-09 | Fujikura Ltd | Method for producing rough drawn wire and device therefor |
| JP2008119558A (en) * | 2006-11-08 | 2008-05-29 | Japan Project:Kk | Dust-removing roll, manufacturing method thereof, and surface cleaning apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0659532B2 (en) | 1994-08-10 |
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