JPH0263803A - Manufacture of hollow ceramic shell - Google Patents
Manufacture of hollow ceramic shellInfo
- Publication number
- JPH0263803A JPH0263803A JP21707088A JP21707088A JPH0263803A JP H0263803 A JPH0263803 A JP H0263803A JP 21707088 A JP21707088 A JP 21707088A JP 21707088 A JP21707088 A JP 21707088A JP H0263803 A JPH0263803 A JP H0263803A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- rotary table
- ceramic
- template
- ceramic shell
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000005245 sintering Methods 0.000 claims abstract description 3
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 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
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Producing Shaped Articles From Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は中空のセラミックス殻の製造を行う方法の改
良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] This invention relates to an improvement in a method for producing hollow ceramic shells.
第６図（ａ） 、 （１））は従来の中空セラミックス
殻の製造方法を示す断面図であシ、第６図（ａ）におい
て。FIGS. 6(a) and 6(1)) are cross-sectional views showing a conventional method for manufacturing a hollow ceramic shell.
（１１はセラミックで成形された第１の半球、（２）は
同じく第２の半球、（３）は第１の半球（１１と第２の
半球（２）の接合面であシ、接着剤で第６図（Ｅに示す
ように接合される。(11 is the first hemisphere molded from ceramic, (2) is also the second hemisphere, (3) is the first hemisphere (the joint surface of 11 and the second hemisphere (2), Then, they are joined as shown in FIG. 6(E).
従来の中空セラミックス殻は上記のように、第１の半球
（りと第２の半球（２）を接合して構成される。A conventional hollow ceramic shell is constructed by joining a first hemisphere (2) and a second hemisphere (2) as described above.
上記のような従来の中空セラミックス殻の製造方法では
、接合面（３）の接着剤の特性で全体の特性が決まって
しまい２例えば耐熱性もガラスの融点１６００℃程度が
上限になってしまい、 Ａ１２Ｃ）、など耐熱性の高
いセラミックを使用して球を作っても意味の無いものに
なってしまう。In the conventional manufacturing method for hollow ceramic shells as described above, the overall properties are determined by the properties of the adhesive on the joint surface (3)2.For example, the upper limit of heat resistance is the melting point of glass, about 1600°C. Even if you make a ball using a highly heat-resistant ceramic such as A12C), it will be meaningless.
また、中空セラミックス殻の中にガスなどを封入しよう
とする場合、接合面（３）だけではなく、他にガスの封
入のためのシール部を作る必要があり。Furthermore, when trying to seal gas or the like into the hollow ceramic shell, it is necessary to create not only the joint surface (3) but also a sealing part for sealing the gas.
この部分もまた強度や耐熱性を悪くする。This part also deteriorates strength and heat resistance.
この発明はこのような課題を解決するためになされたも
ので、接合面やシール部のない中空セラミックス殻を得
ることを目的とする。The present invention was made to solve these problems, and its purpose is to obtain a hollow ceramic shell without a joint surface or a seal portion.
この発明に係る中空セラミックス殻裏造方法は中空の鋳
型の中に液状のセラミック材料を入れ。The hollow ceramic shell lining method according to the present invention includes placing a liquid ceramic material in a hollow mold.
縦軸と横軸の２軸周シに回転させ、鋳型の内面にセラミ
ックの層を形成し水分を鋳型に吸収させて固化し中空セ
ラミックス殻を作る。その後これを加熱焼結して強化す
る。The mold is rotated around two axes (vertical and horizontal) to form a ceramic layer on the inner surface of the mold, absorb moisture into the mold, and solidify to form a hollow ceramic shell. This is then heated and sintered to strengthen it.
また、この発明の別の発明に係る中空セラミック球表造
方法は、上記のものにおいて、縦軸と横軸及びこれに直
交する第２の横軸まわりに回転させるものである。Moreover, in the hollow ceramic sphere surface manufacturing method according to another invention of the present invention, in the above method, rotation is performed around a vertical axis, a horizontal axis, and a second horizontal axis orthogonal to these.
さらに、この発明の別の発明に係る中空セラミックス殻
製造方法は、上記のものにおいて２回転をガス雰囲気中
で行うことによってその内部にガスを封入するものであ
る。Furthermore, a method for manufacturing a hollow ceramic shell according to another aspect of the present invention is to perform two rotations in a gas atmosphere in the above-mentioned shell, thereby sealing a gas inside the shell.
この発明においては、鋳型に２軸周シに球回転を与える
ことによって、鋳型の中に注入されたセラミック液が鋳
型内面に薄い均一な層を成して貼シ付き、鋳型に水分が
吸収されて固まシ中空セラミックス殻が得られる。In this invention, by subjecting the mold to spherical rotation around two axes, the ceramic liquid injected into the mold forms a thin, uniform layer on the inner surface of the mold and sticks to it, causing moisture to be absorbed into the mold. A hollow ceramic shell is obtained.
また、この発明の別の発明においては２回転を直交した
３軸周シに行い、鋳型内面のセラミック層をさらに均一
な厚みにするものである。In another aspect of the present invention, two rotations are performed around three orthogonal axes to make the ceramic layer on the inner surface of the mold more uniform in thickness.
さらに、この発明の別の発明においては、鋳型の内部に
あらかじめガスを注入しておき回転によって中空セラミ
ック球ができたときに、その内部にガスを充填せしめる
ものである。Furthermore, in another invention of the present invention, gas is injected into the inside of the mold in advance, and when the hollow ceramic sphere is formed by rotation, the inside is filled with gas.
第１図はこの発明の一実施例を示す構成図であり、第２
図と第３図は鋳型の断面図である。（４）はアルミナな
どのセラミック粉末を水などの液体に混ぜ泥状にしたセ
ラミックス液、（５）は内型を球に成形し１石こうなど
吸水性の良い素材で作られた鋳型、（６）はこの鋳型（
５）を支持し第１の回転台（７１に固定する支持機構、
（８）は第１の回転台（７）を回転させる第１のモータ
、（９）は第２の回転台、α〔を回転させる第２のモー
タ、αＤは中空セラミックス殻である。FIG. 1 is a configuration diagram showing one embodiment of the present invention, and FIG.
Figures 3 and 3 are cross-sectional views of the mold. (4) is a ceramic liquid made by mixing ceramic powder such as alumina with water or other liquid to form a slurry; (5) is a mold whose inner mold is shaped into a sphere; ) is this mold (
5) a support mechanism that supports and fixes to the first rotary table (71);
(8) is a first motor that rotates the first rotating table (7), (9) is a second rotating table, a second motor that rotates α, and αD is a hollow ceramic shell.
上記のように構成された中空セラミックス殻製造装置に
おいて鋳型（５１を支持機＃１ｔ（６１に取シっけ。In the hollow ceramic shell manufacturing apparatus configured as described above, the mold (51) is placed on the support machine #1t (61).
第１の回転台（７）を第１のモータ（８）まで回転させ
。Rotate the first turntable (7) to the first motor (8).
次いで、第２の回転台αＧを第２のモータ（９）で回転
させる。すると遠心力でセラミックス液（４）が鋳型（
５）の内面に貼９つき、その水分が吸収されて第３図の
ように鋳型（５１の内側に中空セラミックスαυ殻がで
きあがる。Next, the second rotating table αG is rotated by the second motor (9). Then, the centrifugal force causes the ceramic liquid (4) to move into the mold (
The paste 9 is attached to the inner surface of the mold (51), and its moisture is absorbed, forming a hollow ceramic αυ shell inside the mold (51) as shown in Figure 3.
この後、鋳型（５）からセラミックス殻αυヲ取す出し
て、高温焼結して硬化させて仕上シとなる。Thereafter, the ceramic shell αυ is removed from the mold (5) and hardened by high-temperature sintering to form a finished shell.
なお、上記実施例では回転を第１の回転第（７）と第２
の回転台αＧとで行ったが２回転を３軸に行った場合、
さらに均一な厚みの中空セラミックス殻αυを得ること
ができる。In the above embodiment, the rotation is divided into the first rotation (7) and the second rotation.
When performing two rotations on the third axis,
Furthermore, it is possible to obtain a hollow ceramic shell αυ with a uniform thickness.
第４図は３軸回転の場合の一実施例を示すもので、第３
の回転台（１２の上に第２の回転台αＧを取シつけ、第
３のモータａ３で回転を与える。Fig. 4 shows an example in the case of 3-axis rotation.
A second rotary table αG is mounted on the rotary table (12), and rotation is applied by a third motor a3.
この方法によれは、鋳型（５）の内面に均一な球回転に
よる遠心力が働らき、セラミックス液（４）が均等な厚
さで貼シつくことができる。According to this method, a centrifugal force is exerted on the inner surface of the mold (5) by the uniform rotation of the sphere, so that the ceramic liquid (4) can be adhered to a uniform thickness.
さらに、上記実施例において第５図の鋳型（５）の注入
口α瘤からパイプ（１５歪曲、ガス注入装置αｅからガ
スを送出し、セラミックス液（４）と−緒に注入してお
けば、固定した中空セラミックス殻ａｌｌの内部にガス
を充填することができる。Furthermore, in the above embodiment, if the pipe (15 is distorted) from the injection port α of the mold (5) shown in FIG. The interior of all fixed hollow ceramic shells can be filled with gas.
ところで、上記発明では、この発明をセラミックス殻の
製造について述べたが、その他の材質の殻にも利用でき
ることは言うまでもない。Incidentally, in the above invention, the invention has been described with respect to manufacturing a ceramic shell, but it goes without saying that it can also be used for shells made of other materials.
才た２球に限らず任意の形状のものに応用できる。It can be applied not only to two pitches but also to balls of any shape.
この発明は以上説明したとおシ、２軸回転台に鋳型をと
シつけ、２軸周シに球回転を与え、その鋳型内面の遠心
力によって球状にセラミックス液を固めるという方法に
よって、セラミックスの接着個所を無くシ、耐熱性や耐
久性というセラミックス本来の性能を損うことを防ぐと
いう効果がある。As explained above, this invention is capable of adhering ceramics by a method in which a mold is mounted on a two-axis rotary table, spherical rotation is applied to the circumference of the two axes, and the ceramic liquid is solidified into a spherical shape by the centrifugal force on the inner surface of the mold. It has the effect of eliminating spots and preventing loss of the inherent performance of ceramics, such as heat resistance and durability.
また、この発明の別の発明は１球回転を３軸周シに発生
するので、よシ均一な遠心力を得て、中空セラミックス
殻の厚さを均一にする効果がある。Further, in another aspect of the present invention, since one sphere rotates around three axes, a more uniform centrifugal force can be obtained and the thickness of the hollow ceramic shell can be made uniform.
また、この発明のさらに他の発明は、ガスの充填を成形
と同時に行うことで工程を省力化し、かつガスの注入口
を不要とするので、ｉ＠熱性などの性能を損なうことな
くガス充填セラミックス液を作れるという効果がある。In addition, another invention of the present invention saves labor by filling the gas at the same time as molding, and also eliminates the need for a gas injection port. It has the effect of making liquid.
第１図はこの発明の一実施例を示す構成図、第２図及び
第３図は鋳型の断面図、第４図はこの発明の他の実施例
を示す構成図、第５図はさらに他の実施例の構成図、第
６図（ａｔ 、 （ｂ）は従来の中空セラミックス球製
造方法を示す断面図である。
図において、 （ｌｌＦｉ第１の半球、（２）は第２の
半球。
（３）は接合面、（４１はセラミックス液、（５）は鋳
型、（６）は支持機構、（７）は第１のモータ、（８）
は第１の回転台、（９）は第２のモータ、α〔は第２の
回転台、αυは中空セラミックス殻、α２は第３の回転
台、 ０３は第３のモータ、 （１４１は注入口、αｃ
ｊはパイプ、αｅはガス注入装置である。
なお、各図中同一符号は同一または相当部分を示す。Fig. 1 is a block diagram showing one embodiment of the present invention, Figs. 2 and 3 are sectional views of a mold, Fig. 4 is a block diagram showing another embodiment of the invention, and Fig. 5 is a block diagram showing another embodiment of the invention. 6(at) and (b) are cross-sectional views showing the conventional hollow ceramic sphere manufacturing method. In the figures, (llFi is the first hemisphere, and (2) is the second hemisphere. (3) is the joint surface, (41 is the ceramic liquid, (5) is the mold, (6) is the support mechanism, (7) is the first motor, (8)
is the first rotary table, (9) is the second motor, α[ is the second rotary table, αυ is the hollow ceramic shell, α2 is the third rotary table, 03 is the third motor, (141 is the note) entrance, αc
j is a pipe, and αe is a gas injection device. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (2)
第１の回転台に固定する支持機構と、第１の回転台に回
転力を与える第１のモータと、第１の回転台の回転軸に
直交した軸まわりに回転し、第１の回転台が取りつけら
れた第２の回転台と、この第２の回転台に回転力を与え
る第２のモータとを備え、上記鋳型に球回転を与え、そ
の内面にセラミックス液を貼りつけ、固定し、これを焼
結することで中空セラミックス殻を得ることを特徴とす
る中空セラミックス殻製造方法。(1) Supporting the mold injected with mud-like ceramic liquid,
a support mechanism that is fixed to the first rotary table; a first motor that applies rotational force to the first rotary table; and a second motor that applies rotational force to the second rotary table, the mold is given spherical rotation, and a ceramic liquid is applied and fixed to the inner surface of the mold, A hollow ceramic shell manufacturing method characterized by obtaining a hollow ceramic shell by sintering this.
型を支持の第１の回転台に固定する支持機構と、第１の
回転台に回転力を与える第１のモータと第１の回転台の
回転軸に直交した軸まわりに回転し、第１の回転台が取
りつけられた第２の回転台とこの第２の回転台に回転力
を与える第２のモータと、上記鋳型にあけられた注入口
と、この注入口にパイプで接続されたガス注入手段を備
え、上記鋳型を回転させる前に、上記ガス注手段からガ
スを上記鋳型に球回転を与えて、その内面にセラミック
ス液を貼りつけ、固定し均一な厚さの中空セラミックス
殻を得ることを特徴とする中空セラミックス殻製造方法
。(2) A mold injected with a muddy ceramic liquid, a support mechanism that fixes this mold to a first rotary table, a first motor that applies rotational force to the first rotary table, and a first rotating device. A second rotary table that rotates around an axis perpendicular to the rotation axis of the table and to which the first rotary table is attached, a second motor that applies rotational force to the second rotary table, and a gas injection means connected to the injection port with a pipe, and before rotating the mold, the gas is supplied from the gas injection means to the mold to give it a spherical rotation, and the ceramic liquid is applied to the inner surface of the mold. A method for manufacturing a hollow ceramic shell, which is characterized by pasting and fixing to obtain a hollow ceramic shell of uniform thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63217070A JPH0822526B2 (en) | 1988-08-31 | 1988-08-31 | Method for manufacturing hollow ceramic shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63217070A JPH0822526B2 (en) | 1988-08-31 | 1988-08-31 | Method for manufacturing hollow ceramic shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0263803A true JPH0263803A (en) | 1990-03-05 |
| JPH0822526B2 JPH0822526B2 (en) | 1996-03-06 |
Family
ID=16698363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63217070A Expired - Lifetime JPH0822526B2 (en) | 1988-08-31 | 1988-08-31 | Method for manufacturing hollow ceramic shell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0822526B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0471943A (en) * | 1990-07-12 | 1992-03-06 | Taiheiyo Kogyo Kk | Wheel cap or center emblem thereof |
| JP2005306664A (en) * | 2004-04-21 | 2005-11-04 | Nitsukatoo:Kk | Hollow body shaped zirconia sintered compact and method of manufacturing the same |
| US7473090B2 (en) | 2005-01-31 | 2009-01-06 | Molecular Imprints, Inc. | Imprint lithography template to facilitate control of liquid movement |
| US9223202B2 (en) | 2000-07-17 | 2015-12-29 | Board Of Regents, The University Of Texas System | Method of automatic fluid dispensing for imprint lithography processes |
| DE102017111631A1 (en) | 2017-05-29 | 2018-11-29 | Duravit Aktiengesellschaft | Method for producing a ceramic sanitary casting |
| USRE47483E1 (en) | 2006-05-11 | 2019-07-02 | Molecular Imprints, Inc. | Template having a varying thickness to facilitate expelling a gas positioned between a substrate and the template |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270404B (en) * | 2016-08-31 | 2020-04-10 | 山东光大线路器材有限公司 | Terminal ball processing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5796805A (en) * | 1980-12-08 | 1982-06-16 | Onoda Cement Co Ltd | Method and apparatus for manufacturing cement shape |
| JPS62253405A (en) * | 1985-10-14 | 1987-11-05 | リビオ・アルボア・デユペテイツト・フユエンテス | Method and device for manufacturing hollow monolithic body |
-
1988
- 1988-08-31 JP JP63217070A patent/JPH0822526B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5796805A (en) * | 1980-12-08 | 1982-06-16 | Onoda Cement Co Ltd | Method and apparatus for manufacturing cement shape |
| JPS62253405A (en) * | 1985-10-14 | 1987-11-05 | リビオ・アルボア・デユペテイツト・フユエンテス | Method and device for manufacturing hollow monolithic body |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0471943A (en) * | 1990-07-12 | 1992-03-06 | Taiheiyo Kogyo Kk | Wheel cap or center emblem thereof |
| US9223202B2 (en) | 2000-07-17 | 2015-12-29 | Board Of Regents, The University Of Texas System | Method of automatic fluid dispensing for imprint lithography processes |
| JP2005306664A (en) * | 2004-04-21 | 2005-11-04 | Nitsukatoo:Kk | Hollow body shaped zirconia sintered compact and method of manufacturing the same |
| US7473090B2 (en) | 2005-01-31 | 2009-01-06 | Molecular Imprints, Inc. | Imprint lithography template to facilitate control of liquid movement |
| USRE47483E1 (en) | 2006-05-11 | 2019-07-02 | Molecular Imprints, Inc. | Template having a varying thickness to facilitate expelling a gas positioned between a substrate and the template |
| DE102017111631A1 (en) | 2017-05-29 | 2018-11-29 | Duravit Aktiengesellschaft | Method for producing a ceramic sanitary casting |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0822526B2 (en) | 1996-03-06 |
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