JPS62184806A - Pressure molding rubber mold for bag tubular ceramic molded shape - Google Patents
Pressure molding rubber mold for bag tubular ceramic molded shapeInfo
- Publication number
- JPS62184806A JPS62184806A JP2588286A JP2588286A JPS62184806A JP S62184806 A JPS62184806 A JP S62184806A JP 2588286 A JP2588286 A JP 2588286A JP 2588286 A JP2588286 A JP 2588286A JP S62184806 A JPS62184806 A JP S62184806A
- Authority
- JP
- Japan
- Prior art keywords
- bag
- rubber mold
- tubular
- molded body
- rubber
- 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
- 229920001971 elastomer Polymers 0.000 title claims description 77
- 238000000465 moulding Methods 0.000 title claims description 42
- 239000000919 ceramic Substances 0.000 title claims description 27
- 239000002184 metal Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 238000000462 isostatic pressing Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、アイソスタチックプレスによる袋管状セラミ
ックス成形体を製造する際に用いる加圧成形ゴム型に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a pressure molding rubber mold used in producing a bag-tubular ceramic molded body by isostatic pressing.
近年セラミックスは、一般工業製品から電子・機械部品
などに至るまで広範囲に利用され、これらの製品は純度
１寸法精度、物性についての要求が厳しいうえ複雑力形
状のものが多い。これらの製造工程における技術的な問
題は多く、成形工程の改善、省力化が常に要求されてい
る。この解決手段のひとつとしてアイソスタチックプレ
ス法が挙げられる。In recent years, ceramics have been widely used in everything from general industrial products to electronic and mechanical parts, and these products have strict requirements regarding purity, dimensional accuracy, and physical properties, and many have complex shapes. There are many technical problems in these manufacturing processes, and there is a constant demand for improvement and labor saving in the molding process. One of the solutions to this problem is the isostatic press method.
特にアイソスタチックプレスによる成形は、圧力に方向
性がなく、シかもゴム型の内壁面と粉体との間に摩擦力
が働かないため、金型プレス成形で問題となるような型
の内壁と粉体とのブリッジ現象を解消することによって
、均質な密度の成形体を得ることができる。したがって
、アイソスタチックプレス成形法は、目的の寸法に対し
て焼結後に得られる製品の寸法精度が良く、他の成形法
に比較して優れた成形法である。また、工程数も短縮で
き、量産が可能で、均質なセラミックス成形品が得られ
るなどの利点がある。In particular, in isostatic press molding, there is no directionality in the pressure, and there is no frictional force between the powder and the inner wall of the rubber mold, which can cause problems with mold press molding. By eliminating the bridging phenomenon between the powder and the powder, a molded body with a uniform density can be obtained. Therefore, the isostatic press molding method has good dimensional accuracy of the product obtained after sintering with respect to the target dimensions, and is an excellent molding method compared to other molding methods. It also has the advantage of reducing the number of steps, allowing mass production, and producing homogeneous ceramic molded products.
しかしながら、アイソスタチックプレスによる加圧成形
法で特に複雑な形状の成形体を製造する場合問題となる
のは１品用技報 Ａ２５ １９８１年に記載されている
ように成形ゴム型及び粉体の性質に起因して成形体の破
壊が起ることが指摘されている。また１発明者等は、従
来一般に使用されているゴム型を用いてアイソスタチッ
クプレスして得られた特に薄肉、長尺袋管状セラミック
ス成形体は底部に割れが発生し易く健全なものを得るこ
とが困難であることを経験している。However, when producing a molded article with a particularly complex shape using the pressure molding method using an isostatic press, there is a problem with the molding rubber mold and the powder, as described in the Technical Report on Single-Product Use A25 1981. It has been pointed out that molded bodies may break due to their properties. In addition, one inventor et al. found that especially thin-walled, long bag-shaped tubular ceramic molded products obtained by isostatic pressing using conventionally commonly used rubber molds were susceptible to cracking at the bottom and were not sound. I have experienced that it is difficult.
本発明者等はかかる袋管状セラミックス成形体の割れの
原因について種々検討した結果、アイソスタチックプレ
スに使用される加圧成形用ゴム型の構造にその原因があ
ることをつきとめた。The inventors of the present invention have conducted various studies on the causes of cracks in such bag-tubular ceramic molded bodies, and have found that the cause lies in the structure of the pressure molding rubber mold used in the isostatic press.
本発明は加圧成形用ゴム型の構造を改良するととによっ
て１袋管状セラミックス成形体の欠陥を改善したもので
ある。The present invention improves the structure of the rubber mold for pressure molding, thereby resolving the defects in the one-bag tubular ceramic molded body.
袋管状セラミックス成形体のアイソスタチックプレス成
形法（（ｊ？いては、第２図に示すように芯金１とゴム
型３の間隙に粉体５を充填する構造の加圧成形用ゴム型
を使用しているのが一般的である。このような従来使用
されているゴム型を用いてアイソスタチックプレスによ
り袋管状セラミックス成形体を製造した場合１袋管状成
形体の底部に輪切状のクラックが発生しやすい。この袋
管状成形体の底部に生じるクラックは、扮体充填時のブ
リッジなどの不均一な充填に起因するものと考えられる
。即ち、粉体をゴム型に充填する場合。Isostatic press molding method for a bag-tubular ceramic molded body ((j) is a pressure molding rubber mold having a structure in which powder 5 is filled in the gap between a core metal 1 and a rubber mold 3 as shown in Fig. 2. When a bag tubular ceramic molded body is produced by isostatic pressing using such a conventionally used rubber mold, a round cut is made at the bottom of each bag tubular molded body. Cracks are likely to occur at the bottom of the bag tubular molded body.It is thought that the cracks that occur at the bottom of the bag tubular molded body are caused by non-uniform filling such as bridges when filling the costume body.In other words, when filling powder into a rubber mold .
ゴム型に振動を与えながら充填密度を上げる方法をとっ
ているが１袋管状成形体の底部となる個所は粉体の充填
が不均一となりやすい。そのため。Although a method is used to increase the packing density by applying vibrations to the rubber mold, the filling of the powder tends to be uneven at the bottom of the one-bag tubular molded product. Therefore.
加圧及び減圧時においてゴム型が袋管状成形体の底部と
なる個所で部分的に早く収縮及び復元を起し１袋管状成
形体の底部表面が径方向に引張り応力を受けて輪切状の
クラックが発生することを本発明者等は解明した。During pressurization and depressurization, the rubber mold partially shrinks and restores quickly at the part that becomes the bottom of the bag tubular molded body, and the bottom surface of the bag tubular molded body receives tensile stress in the radial direction, resulting in a ring-like shape. The present inventors have discovered that cracks occur.
本発明は袋管状セラミックスの成形に関するもので、特
にセラミックス粉体をアイソスタチックプレス加圧成形
するときに用いる成形ゴム型の改良を目的としている。The present invention relates to the molding of bag-tubular ceramics, and in particular aims at improving the molding rubber mold used when isostatically press-molding ceramic powder.
アイソスタチックプレス加圧成形法で袋管状セラミック
ス成形体を製造する際の袋管状成形体の底部に生じる割
れの原因について種々検討した結果、その原因は加圧成
形用ゴム型の構造にあることがわかった。本発明は成形
用ゴム型の構造を改良することによって１袋管状セラミ
ックス成形体の欠陥を改善したものである。As a result of various studies on the causes of cracks that occur at the bottom of bag-tubular ceramic molded bodies when manufacturing bag-tubular ceramic molded bodies using the isostatic press pressure molding method, we found that the cause lies in the structure of the rubber mold for pressure molding. I understand. The present invention improves the defects of the one-bag tubular ceramic molded body by improving the structure of the molding rubber mold.
本発明の要旨は、加圧用ゴム管内部に芯金を配備すると
ともに、該ゴム管の上部でかつ前記芯金の上方に中空ゴ
ム管が配される構造のゴム型を使用してアイソスタチッ
クプレス成形することにより袋管状セラミックス成形体
を製造することにある
以下本発明の成形用ゴム型を使用して袋管状セラミック
ス成形体を製造する方法を図面によって説明する。The gist of the present invention is to use a rubber mold having a structure in which a core metal is provided inside a pressurizing rubber tube and a hollow rubber tube is arranged above the rubber tube and above the core metal. DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for manufacturing a bag-tubular ceramic molded body by press molding using the molding rubber mold of the present invention will be described below with reference to the drawings.
第１図は本発明に係る、袋管状セラミックス成形体を得
るためのアイソスタチックプレス成形用ゴム型の構造を
示したものでｓｂ、２は中空ゴム管、１は芯金、３はゴ
ム管、４は蓋である。このゴム型の芯金１とゴム管３の
間隙にセラミックス粉体を芯金１がかくれるまで充填し
１次いで中空ゴム管２を充填された粉体の上部に配置し
蓋４でシールする。このように粉体を充填した加圧成形
用ゴム加圧成形用ゴム型を高圧容器内に挿入してアイソ
スタチックプレス成形することにより全く割れのない健
全な袋管状セラミックス成形体を得ることができる。Figure 1 shows the structure of a rubber mold for isostatic press molding for obtaining a bag-tubular ceramic molded body according to the present invention, in which sb, 2 is a hollow rubber tube, 1 is a core bar, and 3 is a rubber tube. , 4 is a lid. The gap between the rubber-shaped core metal 1 and the rubber tube 3 is filled with ceramic powder until the core metal 1 is covered, and then a hollow rubber tube 2 is placed above the filled powder and sealed with a lid 4. In this way, by inserting the pressure-molding rubber mold filled with powder into a high-pressure container and performing isostatic press molding, it is possible to obtain a healthy bag-tubular ceramic molded body with no cracks. can.
次に本発明の作用を詳細に説明すると１本発明の加圧成
形用ゴム型は次のような作用がある。すなわち１本発明
の加圧成形用ゴム型を用いアイソスタチックプレスによ
り袋管状成形体を製造する場合、加圧時にゴム型は径方
向に圧縮されたのち軸方向に塑性流動して圧縮され袋管
状成形体を製造される。このような加圧成形時における
ゴム型の軸方向の圧縮に伴って中空ゴム管も同様に軸方
向に移動圧縮される。そのため中空ゴム管の内部に粉体
が流れ込む結果１袋管状成形体の底部の粉体は均一に充
填された状態となり、全体が一様に成縮正形される。従
って減圧時におけるゴム型の復元が一様となり全く割れ
の発生のない健全な袋管状成形体を成形できる。Next, the functions of the present invention will be explained in detail. 1. The rubber mold for pressure molding of the present invention has the following functions. That is, 1. When manufacturing a bag tubular molded body by isostatic pressing using the rubber mold for pressure molding of the present invention, the rubber mold is compressed in the radial direction during pressurization, and then plastically flows in the axial direction and compressed to form the bag. A tubular molded body is manufactured. As the rubber mold is compressed in the axial direction during such pressure molding, the hollow rubber tube is similarly moved and compressed in the axial direction. Therefore, as a result of the powder flowing into the hollow rubber tube, the powder at the bottom of the tubular molded bag is uniformly filled, and the entire bag is uniformly molded and shaped. Therefore, the rubber mold is uniformly restored when the pressure is reduced, and a healthy bag-tubular molded product without any cracks can be molded.
このように本発明によれば、従来アイソスタチックプレ
スによる袋管状成形体を製造する場合に問題とされた不
均一な粉体充填に起因する袋管状成形体底部の破壊は全
て解消され、健全な袋管状成形体を提供できる。さらに
圧縮成形により成形体内に空気が閉じ込められたとき、
減圧過程の際に封じ込められた圧縮空気の力で内部空気
が急激に膨張して成形体に割れが生じる場合があるが。As described above, according to the present invention, all the destruction of the bottom of the bag tubular molded body due to uneven powder filling, which was a problem when manufacturing the bag tubular molded body by conventional isostatic pressing, is eliminated, and the bag tubular molded body is made sound. It is possible to provide a bag tubular molded body. Furthermore, when air is trapped inside the molded body due to compression molding,
During the depressurization process, the internal air may expand rapidly due to the force of the confined compressed air, which may cause cracks in the molded product.
本発明によれば中空ゴム管が圧縮空気の流出口の作用金
するので成形体内の空気を極力減少でき。According to the present invention, since the hollow rubber tube acts as an outlet for compressed air, the amount of air inside the molded product can be reduced as much as possible.
成形体内の空気が急激に膨張して生じる成形体の割れを
防止できる。It is possible to prevent the molded body from cracking due to rapid expansion of the air inside the molded body.
さらに本発明の加圧成形用ゴム型の中空ゴム管の形状は
、長さ５陥以上、内径は外径の１／２〜１／１０程度の
もので、内径部の位置は中心に設けた構造とする。また
、成形用ゴム型及び中空ゴム管の材質は１例えばゴム型
をニトリルゴム（ＮＢＲ）とし、中空ゴム管をウレタン
ゴム（Ｕ）とした組合せなど加圧成形用ゴム型に使用す
るゴムの材質は任意に決められるが、中空ゴム管のＪＩ
Ｓ硬さはゴム型の硬さと同様のもの、またゴム型の硬さ
の１／１０程度の値を示す材質の組合せが好ましく、こ
れ以外の中空ゴム管の形状、内径部位置及びゴムの硬度
を使用した加圧成形用ゴム型の場合、前述した充填粉体
の不均一による袋管状成形体の割れの問題を解消するこ
とが不可能となる。Furthermore, the shape of the hollow rubber tube of the pressure molding rubber type of the present invention has a length of 5 or more holes, an inner diameter of about 1/2 to 1/10 of the outer diameter, and the inner diameter part is located at the center. Structure. In addition, the material of the rubber mold for molding and the hollow rubber tube is 1. For example, the rubber mold used for the pressure molding rubber mold may be a combination of nitrile rubber (NBR) for the rubber mold and urethane rubber (U) for the hollow rubber tube. can be determined arbitrarily, but the JI of hollow rubber tubes
S hardness is preferably the same as the hardness of the rubber mold, or a combination of materials showing a value of about 1/10 of the hardness of the rubber mold.Other shapes of the hollow rubber tube, position of the inner diameter, and hardness of the rubber In the case of a rubber mold for pressure molding using the above-mentioned rubber mold, it is impossible to solve the above-mentioned problem of cracking of the bag-tubular molded product due to non-uniformity of the filling powder.
以下本発明の実施例について説明する。Examples of the present invention will be described below.
実施例１
本発明の第１図に示す加圧成形用ゴム型と従来一般的に
使用されている第２図に示す加圧成形用ゴム型とを使用
してアイソスタチックプレスｔ−した。この際の圧力を
１ｔ／−として約外径６５５ｍｇ＋。Example 1 Isostatic pressing was carried out using a pressure molding rubber mold according to the present invention shown in FIG. 1 and a conventionally commonly used pressure molding rubber mold shown in FIG. The pressure at this time is 1 t/-, and the outer diameter is approximately 655 mg+.
肉厚４０ ｗｍ 、長さ７５０鴫の袋管状アルミナセラ
ミックス成形体を得た。なお、原料としたアルミナ粉は
ポリビニールブチラールを１ｗｔ％添加した造粒粉を用
いた。A bag-shaped tubular alumina ceramic molded body having a wall thickness of 40 wm and a length of 750 wm was obtained. Note that the alumina powder used as the raw material was granulated powder to which 1 wt % of polyvinyl butyral was added.
実施例２
実施例１によって得た袋管状成形体の概観を第３図に示
す。図中ａ）は本発明のゴム型で得られた袋管状成形体
であり、 ｂ）は従来型のゴム型で得られた袋管状成形
体である。本発明によれば全く割れのない袋管状成形体
を得ることができる。本発明に比べて従来法では袋管状
成形体の底部に割れが発生しやすく成形性に難点がある
。Example 2 An overview of the bag tubular molded product obtained in Example 1 is shown in FIG. In the figure, a) is a bag tubular molded product obtained using the rubber mold of the present invention, and b) is a bag tubular molded product obtained using a conventional rubber mold. According to the present invention, it is possible to obtain a bag tubular molded article that has no cracks at all. Compared to the present invention, the conventional method is more likely to cause cracks at the bottom of the bag-tubular molded product, and has poor moldability.
実施例３ 第４図に示した本発明の加圧成形用ゴム型を作製した。Example 3 A rubber mold for pressure molding of the present invention shown in FIG. 4 was prepared.
中空ゴム管１は図に示す如く半円状の形状とした。この
本発明のゴム型を用い、アイソスタチックプレスにより
１ｔ／ｃＡの圧力で袋管状アルミナ成形体を得た。なお
、アルミナ粉は実施例１と同様ポリビニールブチラール
を１ｗｔ％添加した造粒粉を用いた。The hollow rubber tube 1 had a semicircular shape as shown in the figure. Using this rubber mold of the present invention, a bag tubular alumina molded body was obtained by isostatic pressing at a pressure of 1 t/cA. As the alumina powder, granulated powder to which 1 wt% of polyvinyl butyral was added was used as in Example 1.
実施例４
第５図は実施例４によって得られた袋管状アルミナセラ
ミックス成形体の外観概略図を示したものである。同図
かられかるように袋管状成形体の底部は半円状で全く割
れのない健全なものを得ることができる。Example 4 FIG. 5 shows a schematic external view of the bag-tubular alumina ceramic molded body obtained in Example 4. As can be seen from the figure, the bottom of the bag tubular molded product is semicircular and is completely free from cracks and is sound.
したがって、実施例３，４の結果から本発明の加圧成形
用ゴム型を使用することにより袋管状成形体の形状は要
求に応じて任意の形状にできる。Therefore, from the results of Examples 3 and 4, by using the rubber mold for pressure molding of the present invention, the shape of the bag tubular molded product can be made into any shape as required.
以上説明したように１本発明では高精度の薄肉。As explained above, one aspect of the present invention is a thin wall with high precision.
長尺セラミックス袋管状成形体を提供できる。品質が良
く安定したセラミックス成形体を製造するためには密度
の均一性が肝要であるために＆袋管状成形体の加圧時に
おける圧力分布の測定法の技術を応用することを検討し
ている。A long ceramic bag tubular molded body can be provided. Because uniformity of density is essential for producing high-quality and stable ceramic molded bodies, we are considering applying the technique of measuring pressure distribution during pressurization of bag tubular molded bodies. .
本発明の効果について述べる。 The effects of the present invention will be described.
本発明の主な効果は次の点にある。The main effects of the present invention are as follows.
ｌ）薄肉、長尺の高精度袋管状セラミックス成形体を製
造できる。l) Thin and long high-precision bag tubular ceramic molded bodies can be manufactured.
２） 有機物バインダーの添加を低減できるので炭素の
残存及び脱バインダー処理を短縮できる。すなわち、高
純度で経済的なセラミックス成形体を製造できる。2) Since the addition of organic binder can be reduced, carbon residual and binder removal processing can be shortened. That is, a highly pure and economical ceramic molded body can be manufactured.
３）袋管状セラミックス成形体の割れ防止対策として従
来は薄手で硬度の低いゴムを使用していた。3) Conventionally, thin rubber with low hardness has been used to prevent cracking of bag-tubular ceramic molded bodies.
この技術では形状の保持などの問題があり実用的でない
。This technique has problems such as shape retention and is not practical.
本発明では厚手で硬度の高いゴム型を用いることが可能
であり実用的な技術である。In the present invention, it is possible to use a thick rubber mold with high hardness, and it is a practical technique.
４）アイソスタチック加圧成形を短縮でき高能率で経済
的である。4) Isostatic pressure forming can be shortened and is highly efficient and economical.
５）加圧成形ゴム型に粉体を充填する場合、大きい粒子
と小さい粒子の分離を防ぐことができるので均一な密度
で高精度の袋管状成形体を安定して提供できる。5) When filling a pressure-molded rubber mold with powder, it is possible to prevent separation of large particles and small particles, so it is possible to stably provide a bag-tubular molded body with uniform density and high precision.
６）本発明は簡単な構造の加圧成型用ゴム型で操作も簡
単である。6) The present invention is a pressure molding rubber mold with a simple structure and is easy to operate.
７）Ｎａ／Ｓ二次電池用β” Ａ２２０ａ固体電解質
袋管は高精度、高性能のものが要求されるが１本発明は
β“−１’ｔ２０ａ袋管の成形に効果がある。7) β'' A220a solid electrolyte bag tube for Na/S secondary batteries is required to have high precision and high performance, and the present invention is effective in forming β''-1't20a bag tube.
第１図は本発明の実施例に使用されてた加圧成形用ゴム
型の構造を示す図であり、第２図は従来の加圧成形用ゴ
ム型の構造を示す図である。
第３ａ図は本発明のゴム型で得られた袋管状アルミナ成
形体の外観概略図で、第３ｂ図は従来のゴム型で得られ
た袋管状アルミナ成形体の外観概略図である。
第４図は本発明のゴム型の構造を示す図であり。
第５図は第４図で得られた袋管状アルミナ成形体の外観
概略図である。
ｌ・・・芯金、２・・・中空ゴム管、３・・・ゴム管、
４・・・蓋。
５・・・充填粉体、６・・芯金設置治具、７山袋管状成
代理人 弁理士１す１１ノ房 男゛（シ７茅３ 目
Ｃａ−）（ｂ）FIG. 1 is a diagram showing the structure of a pressure molding rubber mold used in an embodiment of the present invention, and FIG. 2 is a diagram showing the structure of a conventional pressure molding rubber mold. FIG. 3a is a schematic diagram of the external appearance of a bag-tubular alumina molded product obtained using the rubber mold of the present invention, and FIG. 3b is a schematic diagram of the external appearance of a bag-tubular alumina molded product obtained using a conventional rubber mold. FIG. 4 is a diagram showing the structure of the rubber mold of the present invention. FIG. 5 is a schematic external view of the bag-tubular alumina molded body obtained in FIG. 4. l...Core metal, 2...Hollow rubber tube, 3...Rubber tube,
4... Lid. 5...Filled powder, 6...Core metal installation jig, 7. Yamabukuro tubular forming agent Patent attorney 1st 11th office man゛ (S7 3rd Ca-) (b)
Claims (1)
スで加圧成形する際の加圧成形ゴム型において、ゴム管
内部に芯金を配備するとともに、該ゴム管の上部でかつ
前記芯金の上方に中空ゴム管を配備したことを特徴とす
る袋管状セラミツクス成形体の加圧成形ゴム型。 ２、中空ゴム管の中心部に円形の穴を設けたことを特徴
とする特許請求の範囲第１項記載の袋管状セラミツクス
成形体の加圧成形ゴム型。 ３、中空ゴム管の長さが５ｍｍ以上で、その内径が外径
の１／２〜１／１０であることを特徴とする特許請求の
範囲第１項記載の袋管状セラミツクス成形体の加圧成形
ゴム型。[Claims] 1. In a pressure-molding rubber mold for pressure-molding a bag tubular ceramic molded body using an isostatic press, a core metal is provided inside the rubber tube, and 1. A pressure-molded rubber mold for a bag tubular ceramic molded body, characterized in that a hollow rubber tube is provided above the core metal. 2. A pressure-molded rubber mold for a bag-tube-shaped ceramic molded body according to claim 1, characterized in that a circular hole is provided in the center of the hollow rubber tube. 3. Pressurization of a bag-tubular ceramic molded body according to claim 1, wherein the length of the hollow rubber tube is 5 mm or more, and the inner diameter is 1/2 to 1/10 of the outer diameter. Molding rubber mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2588286A JPS62184806A (en) | 1986-02-10 | 1986-02-10 | Pressure molding rubber mold for bag tubular ceramic molded shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2588286A JPS62184806A (en) | 1986-02-10 | 1986-02-10 | Pressure molding rubber mold for bag tubular ceramic molded shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62184806A true JPS62184806A (en) | 1987-08-13 |
Family
ID=12178150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2588286A Pending JPS62184806A (en) | 1986-02-10 | 1986-02-10 | Pressure molding rubber mold for bag tubular ceramic molded shape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62184806A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03126505A (en) * | 1989-10-12 | 1991-05-29 | Ngk Insulators Ltd | Hydrostatic pressure mold for ceramic pipe |
| JPH0577224A (en) * | 1991-09-20 | 1993-03-30 | Ngk Insulators Ltd | Rubber mold for molding ceramic pipe |
| CN102092083A (en) * | 2010-11-29 | 2011-06-15 | 维苏威赛璐珂陶瓷(苏州)有限公司 | Device for casting hollow ceramic casing |
-
1986
- 1986-02-10 JP JP2588286A patent/JPS62184806A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03126505A (en) * | 1989-10-12 | 1991-05-29 | Ngk Insulators Ltd | Hydrostatic pressure mold for ceramic pipe |
| JPH0577224A (en) * | 1991-09-20 | 1993-03-30 | Ngk Insulators Ltd | Rubber mold for molding ceramic pipe |
| CN102092083A (en) * | 2010-11-29 | 2011-06-15 | 维苏威赛璐珂陶瓷(苏州)有限公司 | Device for casting hollow ceramic casing |
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