JPH02501204A - Mold forming method - Google Patents
Mold forming methodInfo
- Publication number
- JPH02501204A JPH02501204A JP63507037A JP50703788A JPH02501204A JP H02501204 A JPH02501204 A JP H02501204A JP 63507037 A JP63507037 A JP 63507037A JP 50703788 A JP50703788 A JP 50703788A JP H02501204 A JPH02501204 A JP H02501204A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- forming method
- water
- material compound
- frame
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/162—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents use of a gaseous treating agent for hardening the binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】 鋳型形成方法 本発明は、特に中空の鋳物を鋳造するため、粒状の型材料コンパウンドで形成し たブロック型により鋳型を構成する方法に関するものである。[Detailed description of the invention] Mold forming method The present invention is particularly useful for casting hollow castings, which are formed with a granular mold material compound. This invention relates to a method of constructing a mold using a block mold.
の方法がある。溶融金属を鋳造するために型材料を使用可能にするためには、型 材料を圧縮することが必要であった。There is a method. To make the mold material usable for casting molten metal, the mold It was necessary to compress the material.
このような鋳型は充分な硬度を有し、流動する金属溶融物による静力学的圧力に 対して耐久性を示さなければならない。Such molds have sufficient hardness to withstand the static pressure caused by the flowing metal melt. must demonstrate durability.
例えば、振動、プレス、吹き込み、爆発、高圧加圧等による既知の型形成方法は 、すべてベントナイト等の添加物を使用している。鋳造物を取り出した後の古い 砂を再使用する場合、適切に選別しなければならないが、型材料に添加物を付加 する従来の技術では、再選別作業の点で問題が従って、本発明の目的は、溶融金 属に対して反応添加物のない粒状方材料コンパウンドから鋳型を形成する方法を 得るにある。更に、環境を保護することができ、また簡単に再選別することがで きる鋳型をうるにある。For example, known mold forming methods such as vibration, pressing, blowing, explosion, and high pressure pressurization are , all of which use additives such as bentonite. old after taking out the casting If sand is to be reused, it must be properly sorted, but additives may not be added to the mold material. In the conventional technology, there are problems in terms of re-sorting operation, therefore, the object of the present invention is to A method for forming molds from granular material compounds free of reactive additives There is something to be gained. Furthermore, it can protect the environment and can be easily re-sorted. There is a mold that can be used.
この目的を達成するため、本発明方法は請求項１に記載のように構成する。To achieve this object, the method according to the invention is constructed as defined in claim 1.
好適な実施例は従属項に記載する。Preferred embodiments are described in the dependent claims.
粒状型材料コンパウンドからブロック形状の鋳型を形成するため、微細石英砂に 水ガラスを混合し、従って、水ガラスをバインダとして使用するとよい。炭酸ガ スを照射することによって型材料コンパウンドの迅速に硬化することができる。Granular mold material compound into fine quartz sand to form block-shaped molds. It is advisable to mix water glass and therefore use water glass as a binder. carbonated moth The mold material compound can be rapidly cured by irradiating the mold material.
珪酸ゲルの脱水作用により、石英砂は強固に結合する。The silica gel's dehydration action causes the quartz sand to be firmly bound together.
炭酸により生ずる結合は、型を原型から損傷を受けずに解離するのを可能にする 。The bond created by the carbonic acid allows the mold to be dissociated from the original form without damage. .
鋳造可能な硬化の最終段階はマイクロ波の作用により生ずる。The final stage of castable hardening occurs under the action of microwaves.
図面は、本発明方法により形成した鋳型の好適な実施例の斜視図である。The drawing is a perspective view of a preferred embodiment of a mold formed by the method of the present invention.
次に、図面につき本発明の好適な実施例を説明する。Next, preferred embodiments of the present invention will be described with reference to the drawings.
図示の実施例の鋳型１は、両面に型取りして窪みが形成しである型部分２および ３を有する。連続生産のために、このような鋳型を数多く形成し、順次の２個の 鋳型を１個するようにする。このことにより最適な型利用が得られるばかりでな （、連続生産を経済的に行うことができる。The mold 1 of the illustrated embodiment has a mold part 2 which is molded on both sides and has a recess formed therein. It has 3. For continuous production, many such molds are formed and two Make one mold. This not only results in optimal type utilization; (Continuous production can be carried out economically.
冷却媒体としての空気を通過させることができる冷却孔４を設けることにより、 調整した硬化を実施することができる。By providing cooling holes 4 through which air as a cooling medium can pass, Tailored curing can be performed.
型形成のためには、Ｍ２Ｓの砂と、５％の水ガラス（例えば、Ｋｅｒｎｅｘ ） とを使用する。炭酸によるガス照射後にマイクロ波オーブン内にこの型を配置す る。オーブンにより、５分間約７００ワツトのエネルギ放出に相当するオーブン 出力を発生する。これによる脱水により型の硬度増加を生ずる。For mold formation, M2S sand and 5% water glass (e.g. Kernex) and use. Place this mold in a microwave oven after gas irradiation with carbon dioxide. Ru. Oven equivalent to approximately 700 watts of energy release for 5 minutes Generate output. This dehydration causes an increase in the hardness of the mold.
型内に金属を注入し、金属の硬化後には、型は水に溶解することができる。鋳造 物は水噴射によりきれいにすることができる。型を水中に入れることは種々の段 階で行うことができ、鋳造物の接合変化を確実に回避したり、または接合変化を 生じたりすることができる。After the metal is injected into the mold and the metal hardens, the mold can be dissolved in water. casting Objects can be cleaned with water jets. Placing the mold in water involves various steps. This can be done on the floor to ensure that joint changes in the casting are avoided or can occur.
水に溶解した砂は乾燥後に新たに選別するが、この選別は、環境保護のための付 加的な処理をすることなしに行うことができ、例えば、ベントナイト、微粉炭、 またはたの添加材等の付加材料を必要としない。Sand dissolved in water is re-sorted after drying, but this sorting is done as an additional measure to protect the environment. It can be done without additional treatment, e.g. bentonite, pulverized coal, No additional materials such as additives or other additives are required.
上述の技術および方法で形成した鋳型は極めて高い硬度を有するため、古い硬化 材料に対してもスパイスのない鋳造が得られる。このような型で鋳造された鋳造 体は、結果として退入性が僅かな良好な外面が得られる。Molds formed using the techniques and methods described above have extremely high hardness, so old hardened A spice-free casting is also obtained for the material. Castings made in such molds The body results in a good external surface with little retraction.
このような型により新たに形成された鋳造物はほとんど後処理が不要となる。Newly formed castings from such molds require almost no post-processing.
上述の方法により形成された型の利点は以下のように数多くある。即ち、 一実施を全自動で行える。The advantages of molds formed by the method described above are numerous. That is, One implementation can be performed fully automatically.
一物理的には、単にＣＯｔ、水ガラス、ＳｉＯ□等の無機材料により（石英砂を 使用することもできる）形成することができる。鋳造中および鋳造後に、不快な 臭気発生がない。Physically, it is possible to simply use inorganic materials such as COt, water glass, and SiO□ (quartz sand can also be used). During and after casting, uncomfortable No odor is generated.
−水中で型の解離を行うことができ、このためほこりの発生の問題がなくなる。- The dissociation of the mold can be carried out underwater, which eliminates the problem of dust generation.
一環境保護をすることができ、損失の少ない砂選別を行うことができる。- It is possible to protect the environment and perform sand sorting with less loss.
−エネルギ消費が少ない。-Low energy consumption.
国際調査＠告 ””””””ＰＣＴ／ ＣＨ８８１００１６１International investigation @ notification ””””””PCT/CH88100161
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3608/87-0 | 1987-09-18 | ||
| CH3608/87A CH675973A5 (en) | 1987-09-18 | 1987-09-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02501204A true JPH02501204A (en) | 1990-04-26 |
Family
ID=4259648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63507037A Pending JPH02501204A (en) | 1987-09-18 | 1988-09-15 | Mold forming method |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0344225B1 (en) |
| JP (1) | JPH02501204A (en) |
| AT (1) | ATE110016T1 (en) |
| CH (1) | CH675973A5 (en) |
| DE (1) | DE3851143D1 (en) |
| WO (1) | WO1989002325A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58100938A (en) * | 1981-12-11 | 1983-06-15 | Sintokogio Ltd | Molding method for mold |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB745402A (en) * | 1952-07-09 | 1956-02-22 | Wilhelm Schmidt | Improvements in or relating to a process for the production of moulds and cores for foundry purposes |
| DE1030525B (en) * | 1952-11-13 | 1958-05-22 | Gutehoffnungshuette Sterkrade | Process for the production of molded masks |
| FR1322512A (en) * | 1962-05-02 | 1963-03-29 | Siemens Ag | Method and apparatus for constructing dimensionally stable foundry molds and cores from molding sands and binders |
| FR1517167A (en) * | 1967-03-09 | 1968-03-15 | Usines Belges Vynckier Freres | Process for curing a sand-based composition and installation for carrying out this process |
-
1987
- 1987-09-18 CH CH3608/87A patent/CH675973A5/de not_active IP Right Cessation
-
1988
- 1988-09-15 AT AT88907601T patent/ATE110016T1/en not_active IP Right Cessation
- 1988-09-15 DE DE3851143T patent/DE3851143D1/en not_active Expired - Fee Related
- 1988-09-15 JP JP63507037A patent/JPH02501204A/en active Pending
- 1988-09-15 EP EP88907601A patent/EP0344225B1/en not_active Expired - Lifetime
- 1988-09-15 WO PCT/CH1988/000161 patent/WO1989002325A1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58100938A (en) * | 1981-12-11 | 1983-06-15 | Sintokogio Ltd | Molding method for mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CH675973A5 (en) | 1990-11-30 |
| EP0344225B1 (en) | 1994-08-17 |
| DE3851143D1 (en) | 1994-09-22 |
| EP0344225A1 (en) | 1989-12-06 |
| WO1989002325A1 (en) | 1989-03-23 |
| ATE110016T1 (en) | 1994-09-15 |
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