JPS6327162B2 - - Google Patents
Info
- Publication number
- JPS6327162B2 JPS6327162B2 JP9994083A JP9994083A JPS6327162B2 JP S6327162 B2 JPS6327162 B2 JP S6327162B2 JP 9994083 A JP9994083 A JP 9994083A JP 9994083 A JP9994083 A JP 9994083A JP S6327162 B2 JPS6327162 B2 JP S6327162B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- rubber mold
- rubber
- ceramic
- molding
- 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.)
- Expired
Links
- 239000000919 ceramic Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 18
- 238000000465 moulding Methods 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 7
- 238000009694 cold isostatic pressing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
- B30B15/022—Moulds for compacting material in powder, granular of pasta form
- B30B15/024—Moulds for compacting material in powder, granular of pasta form using elastic mould parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Description
【発明の詳細な説明】
本発明はゴム型によるセラミツクス製品の成形
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for molding ceramic products using a rubber mold.
セラミツクス製品の成形方法の１つとしてコー
ルドアイソスタテイツクプレス法があり、このコ
ールドアイソスタテイツクプレス法には、湿式法
と乾式法とがある。湿式法は、成形ゴム型の中に
セラミツクス粉末を密封し、これを高圧容器内の
液体中に入れて、圧力を等方的に加えて加圧成形
するものである。また乾式法は、成形ゴム型に直
接液体が触れないように、液体を密封するための
加圧ゴム型を高圧容器内に組込み、セラミツクス
粉末を上記加圧ゴム型内に直接充填し、組込まれ
たゴム型を介して加圧成形する方法である。 One of the methods for molding ceramic products is a cold isostatic press method, and the cold isostatic press method includes a wet method and a dry method. In the wet method, ceramic powder is sealed in a rubber mold, placed in a liquid in a high-pressure container, and pressure is applied isotropically to form the ceramic powder. In addition, in the dry method, a pressurized rubber mold is installed in a high-pressure container to seal the liquid so that the liquid does not come into direct contact with the molded rubber mold, and ceramic powder is directly filled into the pressurized rubber mold. This is a method of pressure molding using a rubber mold.
しかしながら、このような従来方法の場合、湿
式法では、ゴム型にセラミツクス粉末を充填し、
これを高圧容器に入れて液圧で成形後、取り出す
という作業が必要で、このようにゴム型を取り扱
う操作は面倒であり、さらに、ゴム型が液体で濡
れるので取り扱いがさらに不便になるという問題
があつた。また乾式法では、加圧ゴム型を用いる
ので、複雑な形状をしたセラミツクス製品の成形
には不適当であるという問題があつた。 However, in the case of such conventional methods, the wet method involves filling a rubber mold with ceramic powder,
It is necessary to place the mold in a high-pressure container, mold it with hydraulic pressure, and then take it out. Handling the rubber mold in this way is troublesome, and furthermore, the rubber mold gets wet with liquid, making handling even more inconvenient. It was hot. In addition, the dry method uses a pressurized rubber mold, so there is a problem that it is unsuitable for molding ceramic products with complicated shapes.
本発明は上記従来の欠点を解消するもので、容
易な操作でしかも迅速に、複雑な形状のセラミツ
クス製品を成形できるゴム型によるセラミツクス
製品の成形方式を提供することを目的とする。 SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and aims to provide a method for molding ceramic products using a rubber mold, which allows complicated shapes to be molded easily and quickly.
上記目的を達成するため、本発明のゴム型セラ
ミツクス製品の成形方法は、外金型と、この外金
型内を摺動可能な中金型と、前記外金型の内部に
設置されかつ圧縮したときに圧縮力がほぼ均等と
なるように予じめ加工されたゴム型とからなる成
形型を用いて、前記ゴム型内にセラミツクス粉末
を充填し、前記中金型を押圧することにより前記
ゴム型を圧縮変形させて成形を行う構成である。 In order to achieve the above object, the method for molding a rubber-type ceramic product of the present invention includes an outer mold, an inner mold that is slidable inside the outer mold, and a mold that is installed inside the outer mold and is compressed. Using a mold made of a rubber mold that has been processed in advance so that the compressive force is almost uniform when the mold is pressed, the rubber mold is filled with ceramic powder, and the inner mold is pressed. This configuration performs molding by compressing and deforming a rubber mold.
かかる構成によれば、ゴム型の圧縮変形により
セラミツクス粉末は周囲から等圧的に加工される
ので、コールドアイソスタテイツクプレス法によ
り成形されたセラミツクス製品と同様のものが得
られ、しかも加圧のための液体を用いないので、
簡単な作業でかつ迅速に、良好なセラミツクス製
品を成形できるものである。 According to this configuration, the ceramic powder is processed isobarically from the surrounding area by compressive deformation of the rubber mold, so that a ceramic product similar to a ceramic product molded by the cold isostatic press method can be obtained, and moreover, it is possible to obtain a ceramic product molded by the cold isostatic press method. Since no liquid is used for
Good ceramic products can be molded quickly and easily.
以下、本発明の一実施例について、図面に基づ
いて説明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図において、１は筒状の外金型、２は外金
型１に摺動可能に内嵌する中金型、３は金型１，
２内に挿入された天然のあるいは合成樹脂製のゴ
ムからなる筒状の弾性を有するゴム型、４は中金
型２を押圧するポンチ、５は金型１，２及びゴム
型３内に充填されたセラミツクス粉末であり、前
記ゴム型３は、ポンチ４により中金型２を介して
押圧されたときに、その内面が、成形すべきセラ
ミツクスにほぼ均等な圧力がかかるように加工さ
れている。 In FIG. 1, 1 is a cylindrical outer mold, 2 is an inner mold that is slidably fitted into the outer mold 1, 3 is a mold 1,
A cylindrical elastic rubber mold made of natural or synthetic resin rubber inserted into 2, 4 a punch for pressing the middle mold 2, and 5 filled into the molds 1, 2 and the rubber mold 3. The inner surface of the rubber mold 3 is processed so that when it is pressed through the middle mold 2 by a punch 4, almost uniform pressure is applied to the ceramics to be molded. .
成形に際しては、外金型１にゴム型３を挿入
し、このゴム型３内にセラミツクス粉末５を所定
量充填し、次に外金型１に中金型２を挿入して、
これをポンチ４により所定圧で所定時間押圧す
る。これにより、ゴム型３は圧縮されて変形し、
図中に仮想線で示すように、その内面が、成形す
べきセラミツクスにほぼ均等な圧力がかかるよう
になる。かくして、所定形状のセラミツクス製品
が成形される。 During molding, a rubber mold 3 is inserted into the outer mold 1, a predetermined amount of ceramic powder 5 is filled into the rubber mold 3, and then an inner mold 2 is inserted into the outer mold 1.
This is pressed with a punch 4 at a predetermined pressure for a predetermined time. As a result, the rubber mold 3 is compressed and deformed,
As shown by the imaginary lines in the figure, the inner surface applies approximately equal pressure to the ceramic to be molded. In this way, a ceramic product of a predetermined shape is molded.
このように、ポンチ４で中金型２を介してゴム
型３を押圧することにより、ゴム型３が変形し、
セラミツクス粉末５は周囲から等方的に加圧され
るので、コールドアイソスタテイツクプレス法に
より成形したのと同様なセラミツクス製品が得ら
れる。また液体を使用しないので、作業を簡単に
行なえ、しかも成形サイクル時間を短縮できる。
またゴム型３の加工修正が容易であるので、ゴム
型３の製作費を安価にできる。またゴム型３を取
り換えるだけで、例えば自動車のプラグ等の、
種々の複雑な形状のセラミツクス製品を成形でき
る。またゴム型３は圧縮荷重を除去すると元の形
状に戻ろうとするので、脱型が容易である。 In this way, by pressing the rubber mold 3 through the middle mold 2 with the punch 4, the rubber mold 3 is deformed,
Since the ceramic powder 5 is isotropically pressed from its surroundings, a ceramic product similar to that formed by cold isostatic pressing can be obtained. Furthermore, since no liquid is used, the process is simple and the molding cycle time can be shortened.
Further, since the rubber mold 3 can be easily processed and corrected, the manufacturing cost of the rubber mold 3 can be reduced. In addition, just by replacing the rubber mold 3, you can use it for car plugs, etc.
It is possible to mold ceramic products with various complex shapes. Moreover, since the rubber mold 3 tends to return to its original shape when the compressive load is removed, demolding is easy.
第２図は別の実施例を示しており、このよう
に、ゴム型３の上下に別のゴム型６，７を設けて
もよく、このようにすれば、ゴム型３の長寿命化
を図ることができる。 FIG. 2 shows another embodiment. In this way, separate rubber molds 6 and 7 may be provided above and below the rubber mold 3. In this way, the life of the rubber mold 3 can be extended. can be achieved.
なお、筒状でかつ内外周面共に所定形状に成形
されたセラミツクス製品を得る場合、ゴム型３に
半径方向に間隔をあけて内嵌する別のゴム型を用
い、このゴム型の周囲にセラミツクス粉末５を充
填するようにすればよい。 In addition, when obtaining a ceramic product that is cylindrical and molded into a predetermined shape on both the inner and outer circumferential surfaces, another rubber mold is used that is fitted inside the rubber mold 3 with an interval in the radial direction, and the ceramic is molded around this rubber mold. What is necessary is to fill it with powder 5.
以上説明したように本発明によれば、液体を用
いないので、簡単な作業でかつ迅速にセラミツク
ス製品を成形し得る。 As explained above, according to the present invention, since no liquid is used, ceramic products can be molded quickly and easily.
第１図は本発明の一実施例におけるゴム型によ
るセラミツクス製品の成形方法により成形を行つ
ている状態の断面図、第２図は別の実施例におけ
るゴム型によるセラミツクス製品の成形方法によ
り成形を行つている状態の断面図である。
１……外金型、２……中金型、３，６，７……
ゴム金型、５……セラミツクス粉末。
FIG. 1 is a sectional view of a ceramic product being molded using a method for molding a ceramic product using a rubber mold in one embodiment of the present invention, and FIG. FIG. 1...Outer mold, 2...Middle mold, 3, 6, 7...
Rubber mold, 5...ceramics powder.
Claims (1)
と、前記外金型の内部に設置されかつ圧縮したと
きに圧縮力がほぼ均等になるように予じめ加工さ
れたゴム型とからなる成形型を用いて、前記ゴム
型内にセラミツクス粉末を充填し、前記中金型を
押圧することにより前記ゴム金型を圧縮変形させ
て成形を行うことを特徴とするゴム型によるセラ
ミツクス製品の成形方法。1. An outer mold, an inner mold that can slide inside the outer mold, and a mold that is installed inside the outer mold and processed in advance so that the compressive force is almost equal when compressed. A rubber mold, characterized in that the rubber mold is filled with ceramic powder into the rubber mold, and the rubber mold is compressively deformed by pressing the inner mold to perform molding. A method for molding ceramic products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9994083A JPS59224308A (en) | 1983-06-03 | 1983-06-03 | Method of molding ceramic products using rubber molds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9994083A JPS59224308A (en) | 1983-06-03 | 1983-06-03 | Method of molding ceramic products using rubber molds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59224308A JPS59224308A (en) | 1984-12-17 |
| JPS6327162B2 true JPS6327162B2 (en) | 1988-06-02 |
Family
ID=14260709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9994083A Granted JPS59224308A (en) | 1983-06-03 | 1983-06-03 | Method of molding ceramic products using rubber molds |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59224308A (en) |
-
1983
- 1983-06-03 JP JP9994083A patent/JPS59224308A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59224308A (en) | 1984-12-17 |
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