JPH0788005B2 - Method for joining ceramic compacts - Google Patents
Method for joining ceramic compactsInfo
- Publication number
- JPH0788005B2 JPH0788005B2 JP1080873A JP8087389A JPH0788005B2 JP H0788005 B2 JPH0788005 B2 JP H0788005B2 JP 1080873 A JP1080873 A JP 1080873A JP 8087389 A JP8087389 A JP 8087389A JP H0788005 B2 JPH0788005 B2 JP H0788005B2
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- JP
- Japan
- Prior art keywords
- mud
- ceramic molded
- molded body
- weight
- joining
- 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 - Lifetime
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、複数個のセラミック成形体同士を接合し所望
形状の成形体に組立てるための接合方法に関する。Description: TECHNICAL FIELD The present invention relates to a joining method for joining a plurality of ceramic compacts to each other to assemble them into a compact having a desired shape.
〔従来の技術〕 セラミック粒子を懸濁させた泥しょう石こう型等の吸水
型に鋳込み、吸水型の吸水作用により泥しょうを着肉さ
せる泥しょう鋳込み成形法は、セラミック成形体の成形
法として最も一般的に行われている。その泥しょう鋳込
みにおいて吸水型に回転運動を与え遠心力の作用下に泥
しょうの着肉を行わせることにより、高緻密質化された
中空円筒形状を有するセラミック成形体を得ることもで
きる。その成形体は耐熱性や耐摩耗性等を必要とする配
管材として有用である。[Prior art] The cast-in-mold method of casting ceramics into a water-absorbing mold such as a gypsum-type gypsum mold, in which the water is absorbed by the water-absorbing type, is the most suitable method for molding a ceramic molded body. It is commonly done. It is also possible to obtain a highly densified ceramic molded body having a hollow cylindrical shape by imparting a rotary motion to the water-absorbing type during the casting of the sludge to cause the sludge to be inlaid under the action of a centrifugal force. The molded product is useful as a piping material that requires heat resistance and wear resistance.
泥しょう鋳込み成形により得られる中空円筒状セラミッ
ク成形体は配管材として有用であるが、その成形体の形
状は、一様な断面径を有する真直な円筒体（直管）に限
られる。しかるに、配管構成においては、管材同士を接
続するためのフランジを必要とし、また90゜エルボウ等
のベンド管やＴ字型・Ｙ字型管等の異形管の組込みを必
要とすることが多い。The hollow cylindrical ceramic molded body obtained by sludge casting is useful as a piping material, but the shape of the molded body is limited to a straight cylindrical body (straight pipe) having a uniform cross-sectional diameter. However, in the piping configuration, a flange for connecting the pipe materials is required, and it is often necessary to incorporate a bend pipe such as a 90 ° elbow or a deformed pipe such as a T-shaped or Y-shaped pipe.
本発明は上記に鑑み、泥しょう鋳込み成形により形成さ
れたセラミック成形体の複数個を接合して目的とする用
途に必要な部材形状を組立てるための接合方法を提供す
るものである。In view of the above, the present invention provides a joining method for assembling a plurality of ceramic molded bodies formed by mud casting to assemble the member shapes required for the intended use.
本発明は吸水型に泥しょうを着肉させて形成したセラミ
ック成形体同士を突合せて接合する方法において、吸水
型から抜型された後の湿潤状態にある各セラミック成形
体の互いに接合しようとする部分を、突合せ可能な形状
に整形し、その突合せ面のそれぞれに、その成形体の原
料泥しょうと同種の泥しょうを塗布したうえ、突合せ面
同士を押付け、押付力が加えられた状態を保持して乾燥
することを特徴としている。The present invention relates to a method of butt-joining ceramic molded bodies formed by infiltrating mud into a water-absorbing mold and joining the ceramic molded bodies in a wet state after being removed from the water-absorbing mold to each other. Into a shape that can be abutted, and apply the same type of mud as the raw material mud of the molded body to each of the abutting surfaces, press the abutting surfaces together, and keep the pressing force applied. It is characterized by being dried.
以下、本発明について詳しく説明する。Hereinafter, the present invention will be described in detail.
本発明は、吸水型内で着肉成形されて抜型された後の未
だ湿潤状態を保持しているセラミック成形体同士の接合
を行うものである。本発明によれば、まず各セラミック
成形体の互いの接合部となる個所に、相互の突合せを可
能とする面（突合せ面）を整形する。第１図は、セラミ
ック成形体として、真直の中空円筒体（10）の端面（1
1）と、ドーナツ形状を有する円盤体（20）の盤面（2
1）とを接合することによりフランジ管を組立てる例で
あり、この場合の突合せ面となる端面（11）と盤面（1
2）のそれぞれは平面であるので、その突合せ整形は、
それぞれの表面をヘラでなでつけて滑らかな面とする程
度の手当を加えるだけでよい。第２図は、２つの真直の
中空円筒体（30）と（40）とを直交する向きに接合して
Ｔ字型管に組立てる例であり、この場合は、一方の中空
円筒体（30）の胴部に、他方の中空円筒体（40）の内径
と一致する開口（32）を、また他方の中空円筒体（40）
の端面には前記一方の中空円筒体（30）の外周面に一致
する円弧面（41）をそれぞれ刃物等で形成したうえ、円
弧面（41）およびそれと向い合う開口（32）周囲の外表
面（31）をヘラでなでつけて滑らかにすることにより突
合せ面の整形を達成する。第３図は、２つの真直の中空
円筒体（50）および（60）と、傾斜端面（71）を有する
複数個の円環体（70,70,…）（このものは、真直の中空
円筒体を傾斜切断したものであってよい）を組み合わせ
て90゜エルボウ等のベンド管を成形する例であり、この
場合の突合せ面の整形は、それぞれの端面（51）（61）
（71,71,…）をヘラでなでつけて滑らかにすればよい。The present invention is to join ceramic molded bodies which are still in a wet state after being subjected to inking molding in a water absorption mold and removed from the mold. According to the present invention, first, a surface (butting surface) that allows mutual butting is shaped at a portion that becomes a joint portion of each ceramic molded body. FIG. 1 shows an end surface (1) of a straight hollow cylindrical body (10) as a ceramic molded body.
1) and the disk surface (2) of the disk body (20) having a donut shape (2)
This is an example of assembling a flange pipe by joining 1) with the end surface (11) and the board surface (1
Since each of 2) is a plane, its butt shaping is
All you have to do is to stroke each surface with a spatula to give a smooth surface. FIG. 2 shows an example in which two straight hollow cylindrical bodies (30) and (40) are joined in a direction orthogonal to each other and assembled into a T-shaped tube. In this case, one hollow cylindrical body (30) is used. An opening (32) is formed in the body of the other hollow cylinder (40) that matches the inner diameter of the other hollow cylinder (40), and the other hollow cylinder (40)
An arc surface (41) corresponding to the outer peripheral surface of the one hollow cylindrical body (30) is formed on the end surface of each with a tool or the like, and the outer surface around the arc surface (41) and the opening (32) facing it. Shaping (31) with a spatula to smooth the butt surface. FIG. 3 shows two straight hollow cylinders (50) and (60) and a plurality of annular bodies (70, 70, ...) Having inclined end faces (71) (this is a straight hollow cylinder). This is an example of forming a bend pipe such as a 90 ° elbow by combining (the body may be a slant cut). In this case, the abutting surface is shaped by each end face (51) (61).
Stroke (71, 71, ...) with a spatula to make it smooth.
各セラミック成形体の突合せ面を整形したのち、その突
合せ面に泥しょうを塗布する。突合せ面に泥しょうを塗
布するのは、その突合せ面に、相互の融合結着を可能と
する粘稠状態を付与するためである。その泥しょうは、
セラミック成形体の鋳込み成形に供した泥しょうと同種
の泥しょうを使用すればよいが、含水量はそれより１〜
２重量％程度低くてよい。泥しょうの塗布は刷毛塗り等
により行うことができる。After shaping the butt surface of each ceramic molded body, apply mud on the butt surface. The reason for applying the mud to the abutting surface is to give the abutting surface a viscous state that enables mutual fusion and binding. The mud is
The same kind of mud as the one used for the cast molding of the ceramic molded body may be used, but the water content is less than 1
It may be as low as 2% by weight. The application of mud can be done by brushing or the like.
なお、各セラミック成形体の突合せ面に対する泥しょう
の塗布は、各セラミック成形体が、含水量約15重量％以
上の湿潤状態を保持している間（吸水型から抜型後、約
５〜６時間以内）に行うことが好ましい。それというの
は、セラミック成形体の含水量（抜型直後、約18〜20重
量％であり、時間経過と共に減少する）が、約15重量％
より少なくなった状態で泥しょうの塗布を行うと、塗布
した泥しょうの水分が急速に成形体内に吸収されるた
め、突合せ面を十分に融合結着させるに必要な粘稠状態
とすることが困難となるからである。It should be noted that the application of mud on the abutting surface of each ceramic molded body is performed for about 5 to 6 hours after each ceramic molded body maintains a wet state with a water content of about 15% by weight or more (after removing from the water absorbing mold). Within). This is because the water content of the ceramic molded body (about 18 to 20% by weight immediately after demolding, which decreases with time) is about 15% by weight.
If you apply mud in a reduced amount, the water content of the applied mud will be absorbed rapidly into the molded body, so it may be possible to create the viscous state necessary for sufficient fusion bonding of the butt surfaces. It will be difficult.
各セラミック成形体の突合せ面のそれぞれに泥しょうを
塗布したのち、直ちに突合せ面同士を突合せて適当な押
付力を加えた状態を保持して成形体の乾燥を行う。その
突合せ面に加えられる押付力は、例えば0.3〜2kg/cm2程
度であってよい。接合しようとするセラミック成形体が
第１図のように中空円筒体（10）とフランジとなる円盤
体（20）である場合は、円盤体（20）を水平な台に置
き、その盤面（21）に中空円筒体（10）を直立載置し、
その中空円筒体（10）の自重を突合せ面の押付力として
直立載置状態のもとに所定時間放置して乾燥を行うとよ
い。第２図のＴ字型管の組立ての場合も、上記と同じよ
うに、一方の中空円筒体（30）を水平に保持し、その上
に他方の中空円筒体（40）を直立載置してその自重を突
合せ面の押付け力として作用させることができる。その
自重だけで押付力が不足する場合は、その不足分を補償
するための荷重を上方から加えてやればよい。また、第
３図のベンド管の組立ての場合は、例えばそのベンド管
形状を保持するための適宜の外枠部材を用いると共にゴ
ムバンド等で結束するこにより突合せ面に押付力を加え
るようにすればよい。After the sludge is applied to each of the abutting surfaces of the respective ceramic compacts, the abutting faces are immediately butted against each other and the compact is dried while maintaining a state in which an appropriate pressing force is applied. The pressing force applied to the abutting surface may be, for example, about 0.3 to 2 kg / cm 2 . When the ceramic molded body to be joined is a hollow cylindrical body (10) and a disc body (20) that serves as a flange as shown in FIG. 1, the disc body (20) is placed on a horizontal base and the disc surface (21 ), Place the hollow cylinder (10) upright,
The dead weight of the hollow cylindrical body (10) may be used as a pressing force of the abutting surfaces and left standing for a predetermined time to dry the hollow cylindrical body (10). Also in the case of assembling the T-shaped tube in FIG. 2, one hollow cylinder (30) is held horizontally and the other hollow cylinder (40) is placed upright on it, as in the above. The weight of the lever can act as a pressing force of the abutting surfaces. When the pressing force is insufficient due to its own weight, a load for compensating for the insufficient amount may be applied from above. In the case of assembling the bend pipe of FIG. 3, for example, an appropriate outer frame member for holding the shape of the bend pipe is used, and a pressing force is applied to the abutting surface by binding with a rubber band or the like. Good.
突合せ面を押圧した状態での乾燥は、セラミック成形体
の通常のそれと同じように自然乾燥とすればよく、約12
0時間程度の放置により、乾燥処理を達成する。これに
より、セラミック成形体同士が突合せ面の完全な融合結
着により一体化した成形品が得られる。乾燥後の焼結処
理を含む工程は、通常のセラミック成形体のそれと同様
に行えばよい。Drying while pressing the butt surface may be carried out by natural drying in the same manner as that of a normal ceramic molded body.
Drying is achieved by leaving it for about 0 hours. As a result, a molded product in which the ceramic molded bodies are integrated by the complete fusion bonding of the abutting surfaces is obtained. The process including the sintering treatment after drying may be performed in the same manner as that of a normal ceramic molded body.
本発明が適用されるセラミック成形体の材質に制限はな
いが、例えばチタン酸アルミニウム（Al2TiO5）粉末100
重量部、カオリン粉末５〜15重量部、アルミナ粉末５〜
10重量部、および必要な泥しょう調整剤（例えば、ピロ
リン酸ソーダ，アルミン酸ソーダ，エチルアミン，ピペ
リジン等の解膠剤）の適量（例えば0.3〜0.7重量部）を
含む泥しょうを鋳込み成形に対して得られるセラミック
成形体（このものは、例えば鋼材加熱炉のラジアントチ
ューブとして有用である）の接合に好適に用いられる。The material of the ceramic molded body to which the present invention is applied is not limited, but for example, aluminum titanate (Al 2 TiO 5 ) powder 100
Parts by weight, kaolin powder 5 to 15 parts by weight, alumina powder 5 to
For casting, 10 parts by weight and the appropriate amount (eg 0.3-0.7 parts by weight) of the necessary amount of the slurry modifier (eg, peptizers such as sodium pyrophosphate, sodium aluminate, ethylamine, piperidine) are used for casting. It is suitably used for joining a ceramic molded body obtained as described above (which is useful as, for example, a radiant tube of a steel material heating furnace).
〔Ｉ〕供試セラミック成形体の成形： チタン酸アルミニウム粉末85重量部，カオリン粉末10重
量部，アルミナ粉末５重量部、および解膠剤（ピロリン
酸ソーダ）0.5重量部、および水（固型分100重量部に対
して25重量部）からなる泥しょう（粉末平均粒径:1μ
ｍ）を調製し、遠心鋳込み成形（吸水型の周面上の遠心
力は重力倍数で7G）を行って、第１図に示す中空円筒体
（10）およびフランジとなる円盤体（20）を成形した。
中空円筒体（10）の外径:70mm,内径:50mm,胴長:500mm。
円盤体（20）の外径:110mm,内径:50mm,肉厚:10mm。[I] Molding of test ceramic compact: 85 parts by weight of aluminum titanate powder, 10 parts by weight of kaolin powder, 5 parts by weight of alumina powder, 0.5 part by weight of peptizer (sodium pyrophosphate), and water (solid content) 25 parts by weight of 100 parts by weight of mud (average particle size of powder: 1μ)
m) was prepared and subjected to centrifugal casting (the centrifugal force on the peripheral surface of the water-absorbing mold was 7G in terms of gravity multiple) to form the hollow cylindrical body (10) and the disk body (20) to be the flange shown in FIG. Molded.
Hollow cylinder (10) outer diameter: 70mm, inner diameter: 50mm, trunk length: 500mm.
Disc body (20) outer diameter: 110 mm, inner diameter: 50 mm, wall thickness: 10 mm.
〔II〕セラミック成形体の突合せ接合： 上記中空円筒体（10）の端面（11）および円盤体（20）
の盤面（21）のそれぞれの表面をヘラでなでつけて滑ら
かにしたうえ、原料泥しょうを刷毛塗りし、直ちに円盤
体（10）と中空円筒体（20）を水平台の上で重ね、大気
中に、120時間放置することにより乾燥。各成形体の突
合せ面の泥しょう塗布は、吸水型からの抜型後、約３時
間経過時点（成形体含水量約16重量％）で行った。ま
た、乾燥終了時の含水量は約0.4重量％である。[II] Butt joining of ceramic molded bodies: End surface (11) of the hollow cylindrical body (10) and disk body (20)
Brush each surface of the board surface (21) with a spatula to make it smooth, brush the raw mud, and immediately stack the disk body (10) and the hollow cylinder body (20) on a horizontal stand. Dry by leaving it in the air for 120 hours. The application of mud on the abutting surface of each molded body was performed about 3 hours after the die was removed from the water absorbing mold (the water content of the molded body was about 16% by weight). The water content at the end of drying is about 0.4% by weight.
〔III〕成形体の焼成および接合強度の測定 上記接合成形体を、焼結炉中、1150℃で10時間を要して
焼結処理したのち、その焼結品の接合部を含む領域から
直方体形状の試験片ａ（肉厚方向長さ:5mm,円周方向長
さ:5mm,軸方向長さ:40mm）を、また中空円筒体（10）の
領域から上記と同じ形状を有する試験片ｂを切出し、そ
れぞれ３点曲げ法による強度を測定し、次の結果を得
た。[III] Firing of molded body and measurement of joint strength After the joint molded body was sintered at 1150 ° C. for 10 hours in a sintering furnace, a rectangular parallelepiped was formed from a region including a joint part of the sintered product. Shaped test piece a (length in the thickness direction: 5 mm, length in the circumferential direction: 5 mm, length in the axial direction: 40 mm), and test piece b having the same shape from the region of the hollow cylindrical body (10) Was cut out, and the strength of each was measured by the three-point bending method, and the following results were obtained.
試験片ａ（接合部）……500kgf/cm2 試験片ｂ（非接合部）…700kgf/cm2 上記のように、突合せ接合部は、配管材等の構造材料と
して要求される十分な強度を有している。Test piece a (joint part) 500kgf / cm 2 Test piece b (non-joint part) 700kgf / cm 2 As described above, the butt joint part has sufficient strength required as a structural material such as piping material. Have
本発明によれば、複数個のセラミック成形体を種々の形
態に組立てることができ、その接合部は各種構造材料と
して要求される十分な強度を有している。従って、セラ
ミック製品の形状設計の自由度が高められると共に、そ
の用途の拡大・多様化に大きな効果が得られる。According to the present invention, a plurality of ceramic compacts can be assembled in various forms, and the joints have sufficient strength required for various structural materials. Therefore, the degree of freedom in designing the shape of the ceramic product is increased, and a great effect is obtained in expanding and diversifying its applications.
第１図〜第３図は本発明によるセラミック成形体の接合
例を示す図であり、第１図は斜視図、第２図は正面図、
第３図は側面図である。 10,20,30,40,50,60,:セラミック成形体,11,21,31,41,5
1,61,71,:突合せ面。1 to 3 are views showing an example of joining ceramic molded bodies according to the present invention. FIG. 1 is a perspective view, FIG. 2 is a front view,
FIG. 3 is a side view. 10,20,30,40,50,60,: Ceramic molding, 11,21,31,41,5
1,61,71 ,: Butt face.
Claims (1)
ラミック成形体同士を突合せて接合する方法において、
吸水型から抜型された後の湿潤状態にある各セラミック
成形体の互いに接合しようとする部分を、突合せ可能な
形状に整形し、その突合せ面のそれぞれに、その成形体
の原料泥しょうと同種の泥しょうを塗布したうえ、突合
せ面同士を押付け、押付力が加えられた状態を保持して
乾燥することを特徴とするセラミック成形体の接合方
法。1. A method of butt-joining ceramic molded bodies formed by infiltrating mud into a water absorption type,
The parts of each ceramic molded body in a wet state after being removed from the water absorption mold, which are to be joined to each other, are shaped into a shape that can be butted, and each of the butted surfaces has the same type as the raw material mud of that shaped body. A method for joining ceramic compacts, characterized by applying mud, pressing the abutting surfaces against each other, and maintaining the pressing force applied while drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1080873A JPH0788005B2 (en) | 1989-03-30 | 1989-03-30 | Method for joining ceramic compacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1080873A JPH0788005B2 (en) | 1989-03-30 | 1989-03-30 | Method for joining ceramic compacts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02258205A JPH02258205A (en) | 1990-10-19 |
| JPH0788005B2 true JPH0788005B2 (en) | 1995-09-27 |
Family
ID=13730463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1080873A Expired - Lifetime JPH0788005B2 (en) | 1989-03-30 | 1989-03-30 | Method for joining ceramic compacts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0788005B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06191959A (en) * | 1992-12-24 | 1994-07-12 | Kyocera Corp | Method of joining ceramic members |
| JP3891908B2 (en) * | 1995-07-19 | 2007-03-14 | 株式会社トクヤマ | Method for manufacturing aluminum nitride bonded structure |
| JP2002254420A (en) * | 2001-02-27 | 2002-09-11 | Kyocera Corp | Method for manufacturing bonded body and bonded body manufactured using the same |
| DE102004062645A1 (en) | 2004-12-21 | 2006-06-29 | BAM Bundesanstalt für Materialforschung und -prüfung | Process for the production of ceramic moldings based on sinterable powders |
| JP5486345B2 (en) * | 2009-09-30 | 2014-05-07 | 太平洋セメント株式会社 | Manufacturing method of ceramic sintered body |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6027505A (en) * | 1983-07-26 | 1985-02-12 | 株式会社東芝 | Manufacture of ceramic structure |
| JPS6046961A (en) * | 1983-08-22 | 1985-03-14 | 株式会社杉浦製陶所 | Manufacture of coner tile |
| JPS61175004A (en) * | 1985-01-31 | 1986-08-06 | 三井東圧化学株式会社 | Molding processing method of ceramics |
| JPS6344707A (en) * | 1986-08-12 | 1988-02-25 | ダイヤ電子株式会社 | Manufacture of chip type square polymer resistor |
-
1989
- 1989-03-30 JP JP1080873A patent/JPH0788005B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02258205A (en) | 1990-10-19 |
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