JPS6368242A - Casing method for expendable pattern mold and its mold - Google Patents
Casing method for expendable pattern mold and its moldInfo
- Publication number
- JPS6368242A JPS6368242A JP17733386A JP17733386A JPS6368242A JP S6368242 A JPS6368242 A JP S6368242A JP 17733386 A JP17733386 A JP 17733386A JP 17733386 A JP17733386 A JP 17733386A JP S6368242 A JPS6368242 A JP S6368242A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- mold
- casting
- model
- fugitive
- 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
- 238000000034 method Methods 0.000 title claims description 38
- 229910052751 metal Inorganic materials 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 47
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 42
- 238000005266 casting Methods 0.000 claims abstract description 31
- 239000004793 Polystyrene Substances 0.000 claims abstract description 4
- 229920002223 polystyrene Polymers 0.000 claims abstract description 4
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 4
- 239000000057 synthetic resin Substances 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims 2
- 230000008034 disappearance Effects 0.000 claims 1
- 239000002054 inoculum Substances 0.000 abstract description 6
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910002804 graphite Inorganic materials 0.000 abstract description 3
- 239000010439 graphite Substances 0.000 abstract description 3
- 238000005187 foaming Methods 0.000 abstract 2
- 239000002994 raw material Substances 0.000 abstract 2
- 229910001141 Ductile iron Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 13
- 208000015943 Coeliac disease Diseases 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000005562 fading Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010115 full-mold casting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000006263 metalation reaction Methods 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は鋳鉄における黒鉛球状化剤や、黒鉛分布の変
化、敦械的性質の改善等に用いられる接種剤等に限らず
、広くアルミ及びその合金やステンレス及びその合金等
の各種素材の鋳物自体の組織、成分、組成等を変成させ
る溶湯処理剤を用いる鋳造方法及びその模型鋳型の改良
に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] This invention is not limited to graphite nodularizing agents for cast iron, inoculants used for changing graphite distribution, improving mechanical properties, etc., but is also applicable to a wide range of applications such as aluminum and The present invention relates to a casting method using a molten metal treatment agent that alters the structure, composition, composition, etc. of castings of various materials such as alloys, stainless steel, and alloys thereof, and improvements to model molds thereof.
従来、溶湯％理剤を用いるに必たっては、取鍋に溶湯を
取り出して取鎖内にて溶湯処理を行なうか、溶解作業に
合わせて溶湯処理を行ない鋳型（消失性鋳型および通常
の空隙に鋳込むタイプの鋳型）に鋳込み鋳物を製造する
方法が採用されていた。Conventionally, when using a molten metal % physical agent, the molten metal was taken out into a ladle and processed in a chain, or the molten metal was processed according to the melting operation and molded into a mold (fugitive mold or normal void). A method of manufacturing cast iron castings was adopted (a type of mold for casting).
〔発明が解決しようとする問題点］
しかしながらこの方法では溶湯のフェーディングや溶湯
処理中の発煙およびガス発生による作業環境汚染及び安
全性の減少などの問題点が必り、さらには鋳込み時の溶
湯温度の低下や′￥４品以外の部分にも処理した溶湯を
使用しな（プれはならず歩留まりが悪かった。もら論上
記の欠点を改善すべくインモールド法が提供されている
が、インモールド法は、周知のごとくわざわざ別途合金
処理剤をゼットする反応室を鋳型中に設ける方案を採用
しなければならず、ざらには溶湯と接触する反応室内の
合金の接触表面積や、溶湯がその合金上を通過するとき
の流速等種々な条イ１を考慮して設バ（し、そしてコン
トロールしなければならないため、これまた問題のある
ところであった。またインモールド法は、元来鋳鉄の球
状化処理や接種剤処理に利用されてきた経緯から、従来
から存在する鋳造法には何ら改変を与えるものではなく
、例えば製品模型を部分的に処理する等、種々の処理剤
を適宜利用して従来の、祷ｊ＾法自体に根本的な改変を
加えるには至っていない。[Problems to be Solved by the Invention] However, this method inevitably causes problems such as fading of the molten metal, pollution of the working environment due to smoke and gas generation during molten metal processing, and reduced safety. In order to improve the above-mentioned drawbacks, the in-mold method has been proposed. As is well known, the in-mold method requires a method in which a reaction chamber is specially provided in the mold to contain an alloy treatment agent. This was also problematic because it had to be controlled by considering various factors such as the flow velocity when passing over the alloy.In addition, the in-mold method originally Since it has been used for spheroidization treatment and inoculant treatment, the existing casting method is not modified in any way, and various treatment agents can be used as appropriate, for example, by partially treating the product model. However, no fundamental changes have been made to the traditional prayer method itself.
そこでこの発明の目的とするところは、溶湯のフェーデ
ィングや作業環境汚染がなく、安全性に富み、しかも鋳
込み時の溶湯温度の低下をＪＥ＜ことなく、歩紹まりが
良好で、ざらにｔよインモールド法のごとくわざわざ反
応室を設けたり、種々の複雑な条件設定を考慮すること
が不要なきわめて簡易かつ汎用性に富んだ鋳造法及びそ
の模型鋳型を提供しようとするところにある。Therefore, the purpose of this invention is to achieve a high level of safety without fading of the molten metal or contamination of the working environment, and furthermore, without causing a drop in the temperature of the molten metal during pouring, with a good flow rate, and with a rough T. The object of the present invention is to provide an extremely simple and versatile casting method that does not require the provision of a reaction chamber or consideration of various complicated condition settings as in the in-mold method, and a model mold thereof.
（問題点を解決するための手段）
上記問題点を解決するため、この発明は、消失性模型鋳
型を用いたいわゆるフルモールド鋳造法において、その
方案内にあらかじめ溶湯処理剤をセットした後鋳造する
方法を採用した。つまりこの方法は従来から行なわれて
いる消失性模型鋳型を用いるフルモールド鋳造法と、接
種剤処理に採用されているインモールド法のそれぞれの
長所をうまく活かしたものでおる。すなわち鋳物砂中に
埋設する鋳型にポリスチレン等合成１かｊ脂製発泡体の
消失性模型鋳型を用いるとともに、この模型鋳型に鋳物
組織等を変成させる所定の溶湯処理剤をあらかじめ含有
させ、鋳型内において注湯に従い、含有箇所に応じて模
型の気化消失と同時に？８潟処理剤を溶解ざゼ、模型鋳
型を、この鋳型内で処理された溶湯と置換して鋳物を鋳
造する方法を採用し１こ。(Means for Solving the Problems) In order to solve the above problems, the present invention provides a so-called full mold casting method using a fugitive model mold, in which a molten metal treatment agent is set in advance in the guide, and then casting is performed. method was adopted. In other words, this method makes good use of the advantages of the conventional full-mold casting method using a fugitive model mold and the in-mold method used for inoculant treatment. In other words, a fugitive model mold made of polystyrene or other synthetic resin foam is used as the mold to be buried in foundry sand, and this model mold is pre-contained with a specified molten metal treatment agent that alters the structure of the casting. According to the pouring, the model vaporizes and disappears at the same time depending on the location where it is contained? A method was adopted in which the casting agent was melted and the model mold was replaced with the molten metal treated in this mold to cast the product.
（作用〕
従っていわゆる従来のインモールド法と同様に模型Ｖｔ
型内で処理するため、接種剤処理等を行なうにあたって
も溶湯のフェーディングもなく、安全性に富み、温度低
下のおそれも皆無で、特に歩留まりが良好となる。また
さらには、溶湯処理剤をＶｊ型内に部分的にセットする
ことにＪ二つてインモールド法では実質的に不可能であ
るいわゆる部分的溶湯処理を行なうことが可能となる。(Function) Therefore, like the so-called conventional in-mold method, the model Vt
Since the process is carried out in the mold, there is no fading of the molten metal during inoculant treatment, and it is highly safe, there is no risk of temperature drop, and the yield is particularly good. Furthermore, by partially setting the molten metal treatment agent in the Vj mold, it becomes possible to perform so-called partial molten metal treatment, which is virtually impossible with the in-mold method.
また鋳型内に数種類の溶湯処理剤をセットする串によっ
て部分的に数種類の組成、成分、組織を持った一つの鋳
物製品を製造する事も可能となり、従来にはない全く新
たなりＩｎ法をも採り冑るーしのである。In addition, by setting several types of molten metal processing agents in the mold, it is now possible to manufacture a single cast product with partially different compositions, components, and structures, and this is a completely new method that has never existed before. It's Torikakurushino.
図面はこの発明に係る模型鋳型の一実施例を示す概略図
で、１は湯口、２は湯口底、３は堰である。なお４．５
は製品模型でおる。この実施例では湯口系及び製品模型
４．５いずれもポリスチレン発泡体からなるいわゆる消
失性鋳型を用いてあり、特に製品模型４．５にはそれぞ
れ異なった種類の溶湯処理剤がセラ１〜されている。The drawing is a schematic diagram showing an embodiment of the model mold according to the present invention, in which 1 is a sprue, 2 is a sprue bottom, and 3 is a weir. Note: 4.5
is a product model. In this example, a so-called fugitive mold made of polystyrene foam is used for both the sprue system and the product model 4.5, and in particular, different types of molten metal treatment agents are applied to the product model 4.5. There is.
従って湯口１から注湯すれば鋳物砂中に埋設された模型
は溶湯の湯流れに応じて気化消失し、特に製品模型に溶
湯か流入したときは気化消失と同時に溶湯処理剤を溶解
させることから、鋳型内で溶湯処理がなされるのであり
、この実施例では異なる溶湯処理剤を用いているので異
なった組成の鋳物が一回の鋳造で得られる。Therefore, if the metal is poured from sprue 1, the model buried in the foundry sand will vaporize and disappear as the molten metal flows, and especially when the molten metal flows into the product model, the molten metal processing agent will be dissolved at the same time as the molten metal is vaporized and disappears. The molten metal is treated in the mold, and since different molten metal treatment agents are used in this embodiment, castings with different compositions can be obtained in one casting.
ところで溶湯処理剤を模型鋳型に含有させる方法として
は種々あるが、この実施例では鋳型の成型時に同時に混
入させる方法を採用している。もち論この方法に限らず
、例えば成型済の鋳型に、溶湯処理剤を粉末、粒状もし
くは塊状等の状態で埋設する方法も採用できるし、ある
いはまた処理剤を溶液状態にしてＪ３き、これを注入づ
−る方法も採用でさる。By the way, there are various methods for incorporating the molten metal treatment agent into the model mold, but in this embodiment, a method is adopted in which the agent is mixed at the same time as the mold is formed. Of course, this method is not limited to this method; for example, a method of embedding the molten metal treatment agent in the form of powder, granules, or lumps in a mold that has already been formed can also be adopted, or alternatively, the treatment agent can be made into a solution and then used. An injection method is also available.
一方、この実施例１ま既述のごとく、異なる種類の処理
剤を製品模型にセットしたが、これに限らず同一の処理
剤を用いてもよいし、またｙ４品模型を複数にＵず、単
一にしてもよいのはもち論である。また製品模型に処理
剤をセラ１〜せずに、例えば堰や湯道等湯口系にセット
しても差し支えなく、要するに最終の製品模型において
処理剤が溶解された溶湯が得られればセラ１へ箇所は問
わない。On the other hand, as described in Example 1, different types of processing agents were set on the product model, but the same processing agent may be used without being limited to this, and it is also possible to use multiple 4-product models. It is an argument that it is okay to have a single one. It is also possible to set the processing agent in a sprue system such as a weir or runner without applying it to the product model.In short, if the molten metal in which the processing agent has been dissolved is obtained in the final product model, it can be placed in the Cera 1. It doesn't matter where.
また部分的に処理剤をセットして処理剤成分を一部に含
有する模型とすることもできる。例えば処理剤を同時に
混入して成型した鋳型をそのまま、又は加工して製品模
型に取り付ける方法や、湯口系の一部に組み込ませる方
法も採用できる。It is also possible to partially set a processing agent to create a model that partially contains the processing agent component. For example, it is possible to adopt a method in which a processing agent is simultaneously mixed into a mold and then attached to a product model as it is or after processing, or a method in which it is incorporated into a part of a sprue system.
［発明の効果］
以上のごとくこの発明は、従来の鋳造方法では回避不可
能でおった湯口、湯道等の製品模型以外のいわゆる不要
部分に処理済溶湯が使用されるということは全くなくな
り、歩留まりがきわめて良好で、溶湯処理剤を有効に使
用することができたのである。また特に一つの湯口系に
対して複数種の処理剤を同時に溶解させる従来にはない
固有のＭｙ、Ｎ方法を採用できることから、ざらには部
分的にも灰埋できるので、鋳鉄における球状化処理剤や
接種剤の用途のみならず、アルミ及びその合金等各種素
材に係る鋳物の組成、組織を適宜変化させ又は部分的に
変化させ得る画期的な鋳造方法を現出し得たものである
。[Effects of the Invention] As described above, this invention completely eliminates the use of treated molten metal in so-called unnecessary parts other than the product model, such as sprues and runners, which was unavoidable with conventional casting methods. The yield was extremely good, and the molten metal treatment agent could be used effectively. In addition, since it is possible to adopt the unique My and N method, which is unique to the conventional method of dissolving multiple types of processing agents at the same time in one sprue system, it is possible to partially bury the ash, making it possible to process spheroidization in cast iron. We have developed an innovative casting method that can be used not only as an inoculant, but also to appropriately change or partially change the composition and structure of castings made of various materials such as aluminum and its alloys.
図面はこの発明に係る模型鋳型の一実施例を示す概略図
でおる。
４．５・・・製品模型The drawing is a schematic diagram showing an embodiment of a model mold according to the present invention. 4.5...Product model
Claims (10)
脂製発泡体の消失性模型鋳型を用いるとともに、この模
型鋳型に鋳物組織等を変成させる所定の溶湯処理剤をあ
らかじめ含有させ、鋳型内において注湯に従い、含有箇
所に応じて模型の気化消失と同時に溶湯処理剤を溶解さ
せ、模型鋳型を、この鋳型内で処理された溶湯と置換し
て鋳物を鋳造する消失性模型鋳型鋳造法。(1) A fugitive model mold made of polystyrene or other synthetic resin foam is used as the mold to be buried in the foundry sand, and this model mold is pre-contained with a specified molten metal treatment agent that alters the structure of the casting. A fugitive model mold casting method in which a molten metal processing agent is melted at the same time as the model vaporizes and disappears depending on the location of the melt as the metal is poured, and the model mold is replaced with the molten metal processed in the mold to cast a casting.
くは塊状等の状態で埋設する特許請求の範囲第１項記載
の消失性模型鋳型鋳造法。(2) The fugitive model mold casting method according to claim 1, wherein the molten metal treatment agent is embedded in the fugitive model mold in the form of powder, granules, or lumps.
する特許請求の範囲第１項記載の消失性模型鋳型鋳造法
。(3) The fugitive model mold casting method according to claim 1, wherein a molten metal treatment agent is injected in a solution state into the fugitive model mold.
時に混入させる特許請求の範囲第１項記載の消失性模型
鋳型鋳造法。(4) The fugitive model mold casting method according to claim 1, wherein a molten metal treatment agent is mixed at the same time as the fugitive model mold is formed.
中に埋設し、注湯によって模型を気化消失させ、模型鋳
型を溶湯と置換して鋳物を鋳造する消失性模型鋳型鋳造
法の消失性模型鋳型において、注湯の際、模型の気化消
失と同時に溶湯に溶解し、一定の変成組織等を有する鋳
物となす所定の溶湯処理剤を含有することを特徴とする
消失性模型鋳型。(5) Disappearance of the fugitive model mold casting method, in which a synthetic resin foam model such as polystyrene is buried in foundry sand, the model is vaporized and disappeared by pouring metal, and the model mold is replaced with molten metal to cast a casting. A fugitive model mold, characterized in that it contains a predetermined molten metal treatment agent that melts into the molten metal at the same time as the model vaporizes and disappears during pouring, resulting in a casting having a certain metamorphic structure.
いる特許請求の範囲第５項記載の消失性模型鋳型。(6) The fugitive model mold according to claim 5, wherein the molten metal treatment agent is contained in a part of the model mold.
許請求の範囲第６項記載の消失性模型鋳型。(7) The fugitive model mold according to claim 6, wherein the molten metal treatment agent is contained in the product model.
いる特許請求の範囲第７項記載消失性模型鋳型。(8) The fugitive model mold according to claim 7, wherein the molten metal treatment agent is contained in a part of the product model.
請求の範囲第６項記載の消失性模型鋳型。(9) The fugitive model mold according to claim 6, wherein a molten metal treatment agent is contained in the sprue system.
されている特許請求の範囲第５項、第６項、第７項、第
８項、第９項記載の消失性模型鋳型。(10) The fugitive model mold according to claims 5, 6, 7, 8, and 9, wherein different types of molten metal processing agents are contained for each of a plurality of product models.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17733386A JPS6368242A (en) | 1986-07-28 | 1986-07-28 | Casing method for expendable pattern mold and its mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17733386A JPS6368242A (en) | 1986-07-28 | 1986-07-28 | Casing method for expendable pattern mold and its mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6368242A true JPS6368242A (en) | 1988-03-28 |
Family
ID=16029141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17733386A Pending JPS6368242A (en) | 1986-07-28 | 1986-07-28 | Casing method for expendable pattern mold and its mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6368242A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10471482B2 (en) | 2008-04-18 | 2019-11-12 | Oy Halton Group Ltd. | Exhaust apparatus, system, and method for enhanced capture and containment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829566A (en) * | 1981-07-22 | 1983-02-21 | Toyota Motor Corp | Full mold casting method |
-
1986
- 1986-07-28 JP JP17733386A patent/JPS6368242A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829566A (en) * | 1981-07-22 | 1983-02-21 | Toyota Motor Corp | Full mold casting method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10471482B2 (en) | 2008-04-18 | 2019-11-12 | Oy Halton Group Ltd. | Exhaust apparatus, system, and method for enhanced capture and containment |
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