JPH04153006A - Manufacture of ceramic uneven wall-thickness cylinder component - Google Patents
Manufacture of ceramic uneven wall-thickness cylinder componentInfo
- Publication number
- JPH04153006A JPH04153006A JP28139590A JP28139590A JPH04153006A JP H04153006 A JPH04153006 A JP H04153006A JP 28139590 A JP28139590 A JP 28139590A JP 28139590 A JP28139590 A JP 28139590A JP H04153006 A JPH04153006 A JP H04153006A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- ceramic
- water
- cylindrical
- ceramic slurry
- 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
- 239000000919 ceramic Substances 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000002002 slurry Substances 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 229910052602 gypsum Inorganic materials 0.000 abstract description 3
- 239000010440 gypsum Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract 3
- 238000000465 moulding Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 239000011358 absorbing material Substances 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
- 238000000151 deposition Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、セラミックスラリ−を材料として偏肉筒部材
を遠心成形する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for centrifugally forming a cylindrical member with uneven thickness using ceramic slurry as a material.
（従来の技術）
出願人は、現在セラミックスラリ−を材料として、セラ
ミック管体を製造している。この製造方法は、内面を石
膏にて形成した筒状モールドを高速回転させつつ、該モ
ールド内にセラミックスラリ−を投入し、水分はモール
ドに吸収させ、モールドの内面にセラミック粒子を堅く
層状に堆積させてセラミック筒部材を形成する。(Prior Art) The applicant is currently manufacturing ceramic tubes using ceramic slurry as a material. In this manufacturing method, a cylindrical mold whose inner surface is made of gypsum is rotated at high speed, and a ceramic slurry is poured into the mold. Water is absorbed into the mold, and ceramic particles are deposited in a hard layer on the inner surface of the mold. Then, a ceramic cylinder member is formed.
上記セラミック筒部材を乾燥させ、乾燥によるセラミッ
ク筒部材の若干の収縮を利用して筒部材をモールドから
抜き出し、該筒部材を焼成してセラミック管体を形成す
る。The ceramic cylindrical member is dried, and the cylindrical member is extracted from the mold by utilizing the slight shrinkage of the ceramic cylindrical member due to drying, and the cylindrical member is fired to form a ceramic tube.
上記方法は、均一肉厚のセラミック管体を容晶に製造で
きる利点があった。The above method has the advantage that a ceramic tube with a uniform wall thickness can be produced in a crystalline manner.
（発明が解決しようとする課題）
ところが、セラミック管体の、使用場所によっては、偏
肉の管体が望ましいことがあった。(Problems to be Solved by the Invention) However, depending on where the ceramic tube is used, a tube with uneven thickness may be desirable.
例えば耐摩耗管として、摩耗の激しい側を肉厚側にして
使用する場合である。For example, when used as a wear-resistant tube, the side that is more worn is the thicker side.
しかし、遠心成形法では、偏肉の管体を製造出来なかっ
た。However, with the centrifugal molding method, it was not possible to produce a tube body with uneven thickness.
本発明は、偏肉のセラミック筒部材の遠心成形刃法を明
らかにするものである。The present invention clarifies a centrifugal molding blade method for ceramic cylindrical members with uneven thickness.
（課題を解決する手段）
本発明の偏肉筒部材の製造方法は、吸水性償状モールド
（２）を、該モールドの型孔（２０）が距転中心に対し
て振れ回る様に高速回転させって該モールド（２）内に
セラミックスラリ−（６）苓投入し、セラミックスラリ
−（６）の水分はモールド（２）に浸透せしめ、セラミ
ック粒子をモールド（２）の筒壁の内面に偏肉状に硬く
堆積させて偏肉筒部材（７）を形成するものである。(Means for Solving the Problems) The method for manufacturing a cylindrical member with uneven thickness according to the present invention is to rotate a water-absorbing compensating mold (2) at high speed so that the mold hole (20) swings about the center of rotation. Then, the ceramic slurry (6) is poured into the mold (2), and the moisture in the ceramic slurry (6) permeates into the mold (2), and the ceramic particles are applied to the inner surface of the cylindrical wall of the mold (2). The uneven thickness cylinder member (7) is formed by hardly depositing the uneven thickness.
（作用及び効果）
吸水性モールド（２）が回転すると、型孔（２０）は回
転中心に対して振れ回り、セラミックスラリ−（６）の
水分はモールド（２）に吸収される。(Operation and Effect) When the water-absorbing mold (2) rotates, the mold hole (20) swings around the center of rotation, and the water in the ceramic slurry (6) is absorbed into the mold (2).
モールド（２）内面に作用する遠心力は、回転中心に近
づくほどに小さく、遠去かるほどに大きくなるから、回
転中心に近い側のモールド内面には薄く、回転中心から
遠い側のモールド内面には厚くセラミック粒子が堆積す
る。The centrifugal force acting on the inner surface of the mold (2) is smaller as it approaches the center of rotation, and becomes larger as it moves further away from the center of rotation, so it is thinner on the inner surface of the mold on the side closer to the center of rotation, and thinner on the inner surface of the mold on the side farther from the center of rotation. Ceramic particles are deposited thickly.
これによって、偏肉のセラミック筒部材（７）を簡単に
製造できる。Thereby, the ceramic cylinder member (7) with uneven thickness can be easily manufactured.
回転中心に対する型孔の偏心量によって、偏肉の度合い
を決めることができる。The degree of uneven thickness can be determined by the amount of eccentricity of the mold hole with respect to the center of rotation.
（実施例）
第１図は、本発明で使用する横型遠心成形装置を示して
おり、該装置は回転支持ローラ（５）上に、両端が開口
した円筒状の外枠（１）を回転可能に配備する。(Example) Fig. 1 shows a horizontal centrifugal molding device used in the present invention, which is capable of rotating a cylindrical outer frame (1) with open ends on a rotating support roller (5). to be deployed.
外枠（１）の両端には、外枠（１）の肉厚を貫通し、軸
心に向けて等間隔に位置決めボルト（３）が螺合されて
いる。Positioning bolts (3) are screwed into both ends of the outer frame (1), passing through the thickness of the outer frame (1), at equal intervals toward the axis.
上記外枠（１）内に、石膏等の吸水性資材で形成した筒
状の吸水性モールド（２）が余裕の有る状態に挿入され
る。A cylindrical water-absorbing mold (2) made of a water-absorbing material such as gypsum is inserted into the outer frame (1) with enough room.
上記モールド（２）は必要に応じて補強筒（図示せず）
に収容しても可い。The above mold (2) is equipped with a reinforcing cylinder (not shown) as necessary.
It can be accommodated in
モールド（２）の両端は外枠（１）から臨出し、端部に
環状のバンド（２１）が装着されている。Both ends of the mold (2) protrude from the outer frame (1), and annular bands (21) are attached to the ends.
前記外枠（１）に螺合したボルト（３）によって、モー
ルド（２）を外枠（１）に偏心させて固定する。The mold (2) is eccentrically fixed to the outer frame (1) by a bolt (3) screwed into the outer frame (1).
これによってモールド（２）の型孔（２０）は回転中心
に対して偏心する。This causes the mold hole (20) of the mold (2) to become eccentric with respect to the center of rotation.
然して、バンド（２１）の投入口（２２）からモールド
（２）内にセラミックスラリ−（６）を投入して遠心成
形を行なう。Then, the ceramic slurry (6) is introduced into the mold (2) through the inlet (22) of the band (21) to perform centrifugal molding.
吸水性モールド（２）が偏心回転すると、セラミックス
ラリ−（６）の水分はモールド（２）に吸収される。モ
ールド（２）内面に作用する遠心力は、回転中心に近づ
くほどに小さく、遠去かるほどに大きくなるから、回転
中心に近い側のモールド（２）内面には薄く、回転中心
がら遠い側のモールド（２）内面には厚くセラミック粒
子が堆積する。When the water-absorbing mold (2) rotates eccentrically, water in the ceramic slurry (6) is absorbed into the mold (2). The centrifugal force acting on the inner surface of the mold (2) is smaller as it approaches the center of rotation, and becomes larger as it moves away from the center of rotation. Therefore, the inner surface of the mold (2) on the side closer to the center of rotation is thin, and the inner surface of the mold (2) on the side farther from the center of rotation is thinner. Ceramic particles are thickly deposited on the inner surface of the mold (2).
これによって、偏肉のセラミック筒部材（７）を簡単に
製造できる。Thereby, the ceramic cylinder member (7) with uneven thickness can be easily manufactured.
モールド（２）の回転中心の偏心量によって、偏肉の度
合いを決めることができる。The degree of uneven thickness can be determined by the amount of eccentricity of the rotation center of the mold (2).
セラミック筒部材（７）の乾燥を待って、モールド（２
）のバンド（２１）を外し、モールド（２）から偏肉筒
部材（７）桑Ｗｈ出す−
筒部材（７）を焼成してセラミック管体を形成する。Wait for the ceramic cylindrical member (7) to dry, and then place it in the mold (2).
) is removed and the cylindrical member (7) with uneven thickness is taken out from the mold (2).The cylindrical member (7) is fired to form a ceramic tube.
上記遠心成形装置を使用したセラミック筒部材の製法を
具体的に説明する。A method for manufacturing a ceramic cylindrical member using the above-mentioned centrifugal forming apparatus will be specifically explained.
セラミックスラリ−
粒径が１０μｍ程度のアルミナの粉末と水を混合した含
水率２５％のセラミックスラリ−【水旦二Ａ」
モールドの内径 １００ ｍｍ
モールドの全長 １０００闘
モールドの偏心量 ３闘
上記モールドにセラミックスラリ−を１０ｋｇ投入し、
モールドを３０Ｇで回転させた。Ceramic slurry Ceramic slurry with a water content of 25% made by mixing alumina powder with a particle size of about 10 μm and water [Suidanji A] Inner diameter of the mold 100 mm Total length of the mold 1000 mm Eccentricity of the mold 3 mm For the above mold Add 10kg of ceramic slurry,
The mold was rotated at 30G.
スラリーがモールド内面に層状に硬の堆積した後、型を
開いてセラミック筒部材（７）を取り出した。After the slurry was deposited in a hard layer on the inner surface of the mold, the mold was opened and the ceramic cylinder member (7) was taken out.
セラミック筒部材（７）は偏肉となっており、肉薄部の
厚みは４ｍｍ、肉厚部の幅は１ｏｉｌＩＩｌであった。The ceramic cylinder member (7) had uneven thickness, the thickness of the thinner part was 4 mm, and the width of the thicker part was 1oilIIl.
尚 太をＢＥめ申撓１１岬 ニーｄ、 Ｖハ拍１１す−
モールドに対して偏心して形成し、モールドをその軸心
を中心に回転させても可いのは勿論である。Naota is BE Meshin 11 Misaki Knee d, V Ha beat 11 S-
Of course, it is also possible to form it eccentrically with respect to the mold and rotate the mold around its axis.
本発明は上記実施例の構成に限定されることはなく、特
許請求の範囲に記載の範囲で種々の変形が可能である。The present invention is not limited to the configuration of the above embodiment, and various modifications can be made within the scope of the claims.
第１図は、本願発明で使用した装置の断面図、第２図は
第１図■−■線沿う断面図、第３図偏肉筒部材の断面図
である。
（１）・・・外枠（２）・・・モールド（２０）・・・
型 孔
察２図
祭８図FIG. 1 is a cross-sectional view of the device used in the present invention, FIG. 2 is a cross-sectional view taken along the line ■--■ in FIG. 1, and FIG. 3 is a cross-sectional view of the uneven thickness cylindrical member. (1)... Outer frame (2)... Mold (20)...
Type Kosak 2 drawings Festival 8 drawings
Claims (1)
２０）が回転中心に対して振れ回る様に高速回転させつ
つ、該モールド（２）内にセラミックスラリー（６）を
投入し、セラミックスラリー（６）の水分はモールド（
２）に浸透せしめ、セラミック粒子をモールド（２）の
筒壁の内面に偏肉状に硬く堆積させて偏肉筒部材（７）
を形成することを特徴とする偏肉筒部材の製造方法。1 Place the water absorbent cylindrical mold (2) into the mold hole (
The ceramic slurry (6) is put into the mold (2) while rotating the ceramic slurry (20) at high speed so as to swing around the center of rotation, and the moisture in the ceramic slurry (6) is drained from the mold (
2), and the ceramic particles are hardly deposited on the inner surface of the cylindrical wall of the mold (2) in an uneven thickness shape to form an uneven thickness cylindrical member (7).
1. A method of manufacturing a cylindrical member with uneven thickness, the method comprising: forming a cylindrical member with uneven thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28139590A JPH04153006A (en) | 1990-10-17 | 1990-10-17 | Manufacture of ceramic uneven wall-thickness cylinder component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28139590A JPH04153006A (en) | 1990-10-17 | 1990-10-17 | Manufacture of ceramic uneven wall-thickness cylinder component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04153006A true JPH04153006A (en) | 1992-05-26 |
Family
ID=17638549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28139590A Pending JPH04153006A (en) | 1990-10-17 | 1990-10-17 | Manufacture of ceramic uneven wall-thickness cylinder component |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04153006A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205557A (en) * | 2011-04-29 | 2011-10-05 | 江苏汤辰机械装备制造有限公司 | Loose core type mould |
| WO2012044789A1 (en) * | 2010-10-01 | 2012-04-05 | Rosemount Inc. | Test block for use in a welding process; method of qualifying a welding process on a production workpiece |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4929937A (en) * | 1972-07-19 | 1974-03-16 | ||
| JPS62117703A (en) * | 1985-11-18 | 1987-05-29 | 日立金属株式会社 | Rotary molding equipment for slip cast utilizing centrifugalforce |
-
1990
- 1990-10-17 JP JP28139590A patent/JPH04153006A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4929937A (en) * | 1972-07-19 | 1974-03-16 | ||
| JPS62117703A (en) * | 1985-11-18 | 1987-05-29 | 日立金属株式会社 | Rotary molding equipment for slip cast utilizing centrifugalforce |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012044789A1 (en) * | 2010-10-01 | 2012-04-05 | Rosemount Inc. | Test block for use in a welding process; method of qualifying a welding process on a production workpiece |
| US8384915B2 (en) | 2010-10-01 | 2013-02-26 | Rosemount Inc. | Test block for use in a welding process |
| JP2013542077A (en) * | 2010-10-01 | 2013-11-21 | ローズマウント インコーポレイテッド | Method for certifying a welding process on a test block and production workpiece for use in the welding process |
| CN102205557A (en) * | 2011-04-29 | 2011-10-05 | 江苏汤辰机械装备制造有限公司 | Loose core type mould |
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