JP2002283005A - Method for controlling molten metal casting quantity - Google Patents
Method for controlling molten metal casting quantityInfo
- Publication number
- JP2002283005A JP2002283005A JP2001084553A JP2001084553A JP2002283005A JP 2002283005 A JP2002283005 A JP 2002283005A JP 2001084553 A JP2001084553 A JP 2001084553A JP 2001084553 A JP2001084553 A JP 2001084553A JP 2002283005 A JP2002283005 A JP 2002283005A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- casting
- aluminum
- composite material
- aluminum alloy
- 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.)
- Pending
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、金属−セラミック
ス複合材料を鋳造する際の鋳湯量の制御方法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling the amount of casting metal when casting a metal-ceramic composite material.
【0002】[0002]
【従来の技術】近年、アルミニウムと同程度に軽量でか
つ鋳鉄、鋼並みの高剛性という優れた特長を有する金属
−セラミックス複合材料が種々の分野で頻繁に使用され
るようになってきている。ここで、金属−セラミックス
複合材料を鋳造するために用いる鋳型構造としては、わ
く込め法によるものが用いられていた。わく込め法は、
中小の鋳造品を製造するのに広く用いられる方法で、砂
を込めて造った上型と下型を重ねて鋳型構造とするもの
で、両型の合わさる面を割り面と呼ぶ。鋳造品の鋳湯
は、湯口から注がれ、湯道を通って鋳型に流れて鋳込ま
れ、冷却後に割り面から型を分割して製品を取り出して
いる。2. Description of the Related Art In recent years, metal-ceramic composite materials, which are as lightweight as aluminum and have excellent features such as high rigidity as cast iron and steel, have been frequently used in various fields. Here, as a mold structure used for casting the metal-ceramic composite material, a mold structure based on the encapsulation method has been used. The enclosing method is
A method widely used to manufacture small and medium-sized castings. The upper mold and the lower mold made of sand are stacked to form a mold structure. The surface where both molds meet is called a split surface. The casting metal is poured from a sprue, flows into a mold through a runner, is cast, and after cooling, the mold is divided from the split surface to take out the product.
【0003】[0003]
【発明が解決しようとする課題】しかし、金属−セラミ
ックス複合材料の鋳湯は粘性が大きいために、従来の鋳
型構造に鋳込む時、特に高さの高い製品を鋳込む場合は
注湯初期には大流量で注湯されるため空気を巻きこみや
すく、それにより発生した泡が消失せずに製品中に残留
し、時には10mmを越える欠陥の原因となり、鋳造品
を高歩留りで得ることができないという課題がある。However, since metal-ceramic composite material casting metal has a high viscosity, when casting into a conventional mold structure, especially when casting a high product, it is necessary to perform the casting in the early stage of casting. Is poured at a large flow rate, so it is easy to entrain air, and the bubbles generated thereby remain in the product without disappearing, sometimes causing defects exceeding 10 mm, and it is impossible to obtain cast products with high yield. There are issues.
【0004】本発明は、上記の課題を解決するために鋭
意検討してなされたものであり、鋳湯の注湯時における
泡の発生を防止して、金属−セラミックス複合材料から
なる鋳造品を高歩留りで得られる技術を提供することを
目的としている。SUMMARY OF THE INVENTION The present invention has been made intensively to solve the above-mentioned problems, and has been made to prevent the generation of bubbles at the time of pouring of casting metal and to provide a casting made of a metal-ceramic composite material. The purpose is to provide technology that can be obtained at high yield.
【0005】[0005]
【課題を解決するための手段】上記した本発明の目的
は、セラミックス粉末またはセラミックス繊維を強化材
とし、アルミニウムまたはアルミニウム合金をマトリッ
クスとする金属−セラミックス複合材料を鋳造するため
に用いる鋳湯量の制御方法であって、砂型の湯口に湯口
径より小さい口径を有するアルミニウムまたはアルミニ
ウム合金製のオリフィスを設けることを特徴とする鋳湯
量の制御方法によって達成される。SUMMARY OF THE INVENTION It is an object of the present invention to control the amount of casting metal used for casting a metal-ceramic composite material using ceramic powder or ceramic fiber as a reinforcing material and aluminum or an aluminum alloy as a matrix. The method is achieved by a method of controlling the amount of casting metal, wherein an orifice made of aluminum or an aluminum alloy having a diameter smaller than the diameter of the sprue is provided in the sprue of the sand mold.
【0006】[0006]
【発明の実施の形態】以下、さらに詳細に本発明を説明
する。本発明にいうセラミックスとはアルミナ、窒化ア
ルミニウム、SiC等の公知のセラミックスが適用でき
るが、アルミニウムとの濡れ性、製造の容易さからSi
Cが最も頻繁に用いられる。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. Known ceramics such as alumina, aluminum nitride, and SiC can be used as the ceramics in the present invention.
C is most frequently used.
【0007】次に本発明では、アルミニウム合金が、A
l−Si−Mg系のアルミニウム合金からなることが好
ましく、その理由は、セラミックスとの濡れ性が良好と
なるために鋳造品内での均一な分散が可能となるからで
ある。Next, in the present invention, the aluminum alloy is A
It is preferable to use an l-Si-Mg-based aluminum alloy because the wettability with ceramics is improved and uniform dispersion in a casting is possible.
【0008】本発明では、砂型の湯口に湯口径より小さ
い口径を有するアルミニウムまたはアルミニウム合金製
のオリフィスを設けている。その理由は、鋳湯を湯口か
ら注ぐと、注湯初期はオリフィスの口径が小さいために
徐々に鋳湯が湯道を通じて鋳造品の型にゆっくりと供給
され、従来のような鋳湯が一気に落下して泡の発生する
ようにことがなくなるからである。また次第に、オリフ
ィスの口径は溶解して徐々に広がるため、鋳湯は当初設
計どおりの湯口径となり鋳湯量は安定する。In the present invention, an orifice made of aluminum or an aluminum alloy having a diameter smaller than the diameter of the gate is provided in the sand gate. The reason is that when pouring the pouring water from the sprue, the orifice diameter is small at the beginning of pouring, so that the pouring water is slowly supplied to the casting mold through the runner, and the conventional pouring water falls at once. This is because bubbles do not occur. Also, the diameter of the orifice gradually melts and gradually widens, so that the casting metal becomes the same as the initially designed one, and the amount of casting metal becomes stable.
【0009】(実施例)図1に実施例で用いた砂を込め
て造った鋳型構造の模式的な縦断面図を示した。ここ
で、1は上型で、2は下型、3は、両型の合わさる面
(割り面)である。また、4は湯口で、5は湯道であ
り、6が本発明の湯口の湯口径より小さい口径を有する
アルミニウム製のオリフィスである。また、7は押湯で
ある。(Embodiment) FIG. 1 shows a schematic longitudinal sectional view of a mold structure made by putting sand used in the embodiment. Here, 1 is an upper mold, 2 is a lower mold, and 3 is a surface (split surface) where both molds meet. 4 is a gate, 5 is a runner, and 6 is an aluminum orifice having a diameter smaller than the diameter of the gate of the present invention. Reference numeral 7 denotes a feeder.
【0010】前記した構造の型に、湯口4よりSiCを
30体積%含むアルミニウム合金−SiC複合材料の鋳
湯を注湯して、縦200mm、横200mm、厚み55
mmのアルミニウム合金−SiC複合材料からなる鋳造
品を得た。[0010] Into the mold having the above-described structure, a casting liquid of an aluminum alloy-SiC composite material containing 30% by volume of SiC is poured from the gate 4 to a length of 200 mm, a width of 200 mm, and a thickness of 55 mm.
mm of a cast made of an aluminum alloy-SiC composite material.
【0011】得られた鋳造品の表面および破断面を黙視
により観察した結果、泡等の欠陥は皆無であった。As a result of observing the surface and the fracture surface of the obtained cast product by silent observation, there were no defects such as bubbles.
【0012】[0012]
【発明の効果】本発明によれば、溶湯の注湯時における
泡の発生を防止して、金属−セラミックス複合材料から
なる鋳造品を高歩留りで得られるという効果がある。According to the present invention, it is possible to prevent the occurrence of bubbles during the pouring of molten metal and to obtain a cast product made of a metal-ceramic composite material at a high yield.
【図1】本発明の実施例に関わる鋳型構造の模式断面図
である。FIG. 1 is a schematic sectional view of a mold structure according to an embodiment of the present invention.
1 上型 2 下型 3 割面 4 湯口 5 湯道 6 オリフィス 7 押湯 DESCRIPTION OF SYMBOLS 1 Upper mold 2 Lower mold 3 Split face 4 Sluice 5 Runner 6 Orifice 7 Feeder
Claims (1)
維を強化材とし、アルミニウムまたはアルミニウム合金
をマトリックスとする金属−セラミックス複合材料を鋳
造するために用いる鋳湯量の制御方法であって、砂型の
湯口に湯口径より小さい口径を有するアルミニウムまた
はアルミニウム合金製のオリフィスを設けることを特徴
とする鋳湯量の制御方法。1. A method for controlling the amount of casting metal used for casting a metal-ceramic composite material using ceramic powder or ceramic fiber as a reinforcing material and aluminum or an aluminum alloy as a matrix. A method for controlling the amount of casting liquid, comprising providing an orifice made of aluminum or an aluminum alloy having a small diameter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001084553A JP2002283005A (en) | 2001-03-23 | 2001-03-23 | Method for controlling molten metal casting quantity |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001084553A JP2002283005A (en) | 2001-03-23 | 2001-03-23 | Method for controlling molten metal casting quantity |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2002283005A true JP2002283005A (en) | 2002-10-02 |
Family
ID=18940202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001084553A Pending JP2002283005A (en) | 2001-03-23 | 2001-03-23 | Method for controlling molten metal casting quantity |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2002283005A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103223462A (en) * | 2013-04-11 | 2013-07-31 | 芜湖乐锐思信息咨询有限公司 | Gas outlet needle capable of preventing sand falling |
CN106180568A (en) * | 2016-09-07 | 2016-12-07 | 滁州市鑫鼎机械模具制造有限公司 | A kind of metal mold technique casting inner container of icebox mould strand |
-
2001
- 2001-03-23 JP JP2001084553A patent/JP2002283005A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103223462A (en) * | 2013-04-11 | 2013-07-31 | 芜湖乐锐思信息咨询有限公司 | Gas outlet needle capable of preventing sand falling |
CN106180568A (en) * | 2016-09-07 | 2016-12-07 | 滁州市鑫鼎机械模具制造有限公司 | A kind of metal mold technique casting inner container of icebox mould strand |
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Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20060808 |