JP2002282998A - Mold structure - Google Patents
Mold structureInfo
- Publication number
- JP2002282998A JP2002282998A JP2001084723A JP2001084723A JP2002282998A JP 2002282998 A JP2002282998 A JP 2002282998A JP 2001084723 A JP2001084723 A JP 2001084723A JP 2001084723 A JP2001084723 A JP 2001084723A JP 2002282998 A JP2002282998 A JP 2002282998A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- composite material
- mold structure
- ceramic
- ceramic composite
- 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
- 239000000919 ceramic Substances 0.000 claims abstract description 24
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000005266 casting Methods 0.000 claims abstract description 10
- 239000004576 sand Substances 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims abstract description 3
- 239000011159 matrix material Substances 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims abstract description 3
- 239000012779 reinforcing material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910007981 Si-Mg Inorganic materials 0.000 description 1
- 229910008316 Si—Mg Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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ために用いる鋳型構造に関するも
のである。The present invention relates to a mold structure used for 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、従
来、図１に模式的な縦断面図で示されるようなわく込め
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１と下型２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３と呼ぶ。また、６は鋳
造品の冷却時の体積収縮を補うための押湯である。鋳造
品の溶湯は、湯口４から注がれ、湯道５を通って鋳型に
流れて鋳込まれ、冷却後に砂型を破壊して製品を取り出
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 a metal-ceramic composite material, a mold structure conventionally used as shown in a schematic longitudinal sectional view of FIG. 1 has been used. The enclosing method is a method widely used to manufacture small and medium-sized castings. The upper mold 1 and the lower mold 2 made of sand are stacked to form a mold structure. Called surface 3. Reference numeral 6 denotes a feeder for compensating for volume shrinkage during cooling of the casting. The molten metal of the casting is poured from the gate 4 and flows into the mold through the runner 5 to be cast. After cooling, the sand mold is broken and the product is taken out.
【０００３】[0003]
【発明が解決しようとする課題】しかし、金属−セラミ
ックス複合材料の溶湯は粘性が大きいために、従来の鋳
型構造に鋳込むと注湯時に製品間で溶湯の落下があると
空気を巻きこんで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 the molten metal of the metal-ceramic composite material has a high viscosity, if it is cast into a conventional mold structure, if there is a drop of the molten metal between the products at the time of pouring, air is swirled. The generated bubbles remain in the product without disappearing, sometimes causing defects exceeding 10 mm, and there is a problem that a cast product cannot be obtained at a high yield.
【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、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技術を提供することを
目的としている。The present invention has been made intensively in order to solve the above-mentioned problems, and has been made to prevent the occurrence of bubbles at the time of pouring a molten metal and to improve the casting of a metal-ceramic composite material. The purpose is to provide technology that can be obtained with 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
に用いる鋳型構造であって、湯道と砂型の割面を前記金
属−セラミックス複合材料が鋳込まれる最下面と略同水
準位面に設けることを特徴とする鋳型構造によって達成
される。An object of the present invention is to provide a mold structure used for casting a metal-ceramic composite material having ceramic powder or ceramic fiber as a reinforcing material and aluminum or an aluminum alloy as a matrix. Thus, the present invention is attained by a mold structure characterized in that a split surface of a runner and a sand mold is provided at substantially the same level as the lowermost surface on which the metal-ceramic composite material is cast.
【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、湯道と砂型の割面を前記金属
−セラミックス複合材料が鋳込まれる最下面と略同水準
位面に設けている。その理由は、溶湯が湯道を通じて鋳
造品の最下面から供給されるため、溶湯表面はゆっくり
と最下面から上方向に押し上げられて形成されることと
なり、従来のような溶湯の落下による泡の発生が防止で
きる作用がある。In the present invention, the runner and the split surface of the sand mold are provided at substantially the same level as the lowermost surface on which the metal-ceramic composite material is cast. The reason is that the molten metal is supplied from the lowermost surface of the cast product through the runner, so that the surface of the molten metal is slowly pushed upward from the lowermost surface and is formed. It has the effect of preventing occurrence.
【０００９】また本発明の鋳型構造においても、公知技
術と同様にして、溶湯が凝固する際の体積収縮を防止す
るために押湯を設けても良い。Also, in the mold structure of the present invention, a feeder may be provided in order to prevent volume shrinkage when the molten metal solidifies, similarly to the known technique.
【００１０】（実施例）図１に実施例で用いた鋳型構造
の模式的な縦断面図を示した。ここで、３は湯道と砂型
の割面を前記金属−セラミックス複合材料が鋳込まれる
最下面と略同水準位面に設けた割面であり、６は押湯で
ある。(Embodiment) FIG. 1 shows a schematic longitudinal sectional view of a mold structure used in the embodiment. Here, reference numeral 3 denotes a split surface in which a runner and a sand mold split surface are provided at substantially the same level as the lowermost surface on which the metal-ceramic composite material is cast, and 6 is a feeder.
【００１１】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複合材料の溶
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。A molten metal of an aluminum alloy-SiC composite material containing 30% by volume of SiC is poured from the gate 4 into the mold having the structure described above, and is 200 mm long, 200 mm wide and 55 mm thick.
mm of a cast made of an aluminum alloy-SiC composite material.
【００１２】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 fractured surface of the obtained cast product by silent observation, no defects such as bubbles were found.
【００１３】[0013]
【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】従来の鋳型構造の模式断面図である。FIG. 1 is a schematic sectional view of a conventional mold structure.
【図２】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. 2 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 押湯 1 Upper mold 2 Lower mold 3 Split face 4 Gate 5 Runner 6 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型構造であって、湯道と砂型の割
面を前記金属−セラミックス複合材料が鋳込まれる最下
面と略同水準位面に設けることを特徴とする鋳型構造。1. A mold structure 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, wherein a runner and a sand mold are separated from each other by the metal. -A mold structure characterized in that it is provided on a plane substantially at the same level as the lowermost surface into which the ceramic composite material is cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001084723A JP2002282998A (en) | 2001-03-23 | 2001-03-23 | Mold structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001084723A JP2002282998A (en) | 2001-03-23 | 2001-03-23 | Mold structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002282998A true JP2002282998A (en) | 2002-10-02 |
Family
ID=18940351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001084723A Pending JP2002282998A (en) | 2001-03-23 | 2001-03-23 | Mold structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002282998A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8141616B2 (en) * | 2009-11-17 | 2012-03-27 | Nissin Kogyo Co., Ltd. | Gravity casting method |
| CN107363225A (en) * | 2017-08-02 | 2017-11-21 | 临汾鹏泰伟业有限公司 | One kind is without nickel magnesium kier preparation method |
-
2001
- 2001-03-23 JP JP2001084723A patent/JP2002282998A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8141616B2 (en) * | 2009-11-17 | 2012-03-27 | Nissin Kogyo Co., Ltd. | Gravity casting method |
| CN107363225A (en) * | 2017-08-02 | 2017-11-21 | 临汾鹏泰伟业有限公司 | One kind is without nickel magnesium kier preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20060808 |