JPS63170275A - Manufacture of ceramic products - Google Patents
Manufacture of ceramic productsInfo
- Publication number
- JPS63170275A JPS63170275A JP61311429A JP31142986A JPS63170275A JP S63170275 A JPS63170275 A JP S63170275A JP 61311429 A JP61311429 A JP 61311429A JP 31142986 A JP31142986 A JP 31142986A JP S63170275 A JPS63170275 A JP S63170275A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- green
- product
- inner mold
- manufacture
- 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 description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000010304 firing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、セラミックスを成形および焼成してその製
品を製造するセラミック製品の製造方法に係るものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for manufacturing a ceramic product, which involves molding and firing ceramics to manufacture the product.
（従来の技術）
従来のこの種のセラミック製品の製造方法には、特開昭
５９−１９０８１１号公報に記載されたスリップキャス
ティング用鋳型の発明がある。(Prior Art) A conventional method for manufacturing this type of ceramic product includes the invention of a slip casting mold described in Japanese Patent Application Laid-Open No. 190811/1983.
（発明が解決しようとする問題点）
従来の上記スリップキャスティング用鋳型は、石膏鋳型
を作製するとき番、その石膏中に水不溶性の有機物を含
有させ、鋳型の加熱によって有機物を燃焼させ鋳型の粘
着力を失わせて鋳型強度を低下させ、その鋳型を外力に
よって崩壊している。(Problems to be Solved by the Invention) In the conventional slip casting mold described above, when a plaster mold is manufactured, water-insoluble organic matter is contained in the plaster, and the organic matter is burned by heating the mold, thereby reducing the adhesion of the mold. The strength of the mold is reduced by the loss of force, and the mold collapses due to external force.
従って、鋳型に外力を与えるための圧縮空気または真空
吸引の装置が必要であるＬｊロ間聾力〜°五ろ。Therefore, a compressed air or vacuum suction device is required to apply an external force to the mold.
（問題点を解決するための手段）
そこで、この発明は、上記の問題点を解決するために、
セラミックスを成形および焼成してその製品を製造する
場合に、その鋳型の内型を可燃材料または融点の比較的
低い材料により作製し、且つ焼成前の成形体（以下これ
をグリーンと言う。）をその焼成時の影響は考慮して製
品と殆んど同一の形状および寸法に成形し、製品の内型
の形状が複雑であったり、内側部が拡大しているような
ものであっても自由に成形でき、且つこれを焼成するこ
とＫより、その内型を燃焼または溶融させ除去して希望
の製品を製造することができるようにした。(Means for solving the problems) Therefore, in order to solve the above problems, the present invention has the following features:
When manufacturing products by molding and firing ceramics, the inner mold of the mold is made of a combustible material or a material with a relatively low melting point, and the molded body before firing (hereinafter referred to as green) is We take into account the effects of firing and mold it into almost the same shape and dimensions as the product, and we are free even if the shape of the inner mold of the product is complex or the inner part is expanded. By firing the mold, the inner mold can be burnt or melted and removed to produce the desired product.
（実施例）
第１図に示すこの発明の第一実施例についてその構造を
説明すれば、（５）はスラミックスのグリーンで、外周
面の両側部をテーパー（１）に形成して両側端面の中心
にねじ孔（２）を設けると共Ｋ、そのねじ孔（２）の奥
部にねじ孔（２）よりも大径の凹所（３）を形成したも
のである。(Embodiment) To explain the structure of the first embodiment of the present invention shown in FIG. A screw hole (2) is provided in the center of the screw hole (2), and a recess (3) with a larger diameter than the screw hole (2) is formed at the back of the screw hole (2).
（ト）、（ｑは鋳型の二つ割りにした上下の外型、口は
両側の内型で、紙、炭素展材料、樹脂、低融点金属等の
可燃材料または融点の比較的低い材料により作製すると
共に、グリーンの成形時の鋳込みや加圧等による変形や
狂いによって形状や寸法に支障が生じない強さのものに
形成する。而して、その構成は、ねじ軸（４）に頭（５
）を設け、中心線上にねじ軸（４）の端面側が開放する
排ガス路（６）を形成して成る。(g), (q is the upper and lower outer molds of the mold, and the openings are the inner molds on both sides, which are made of combustible materials such as paper, carbon expanded materials, resins, low-melting point metals, or materials with relatively low melting points. At the same time, the green is formed to be strong enough that its shape and dimensions will not be affected by deformation or distortion caused by casting, pressurization, etc. during molding of the green.
), and an exhaust gas passage (6) is formed on the center line with the end face side of the screw shaft (4) open.
次に、その作用を説明する。上下の外４も０の両側部間
に両側内型口のねじ軸（４）の外側部を挟持させて外型
（ト）、（０間の空室内の両側部に両側内型ｑの内側部
を所定に設置する。Next, its effect will be explained. The outer parts of the screw shafts (4) of the inner mold openings on both sides are sandwiched between the upper and lower outer sides of the outer molds 4 and 0, and the outer mold (G) is formed. place the parts in place.
そこで、上記外！Ｉ（１１％、（０間の空室内に流動状
セラミックスを流し込んで放置すれば、グリーン（６）
が鋳込み成形される。So, outside of the above! I (11%, (0) If you pour fluid ceramics into the space and leave it, it will turn green (6)
is molded by casting.
一方、上記流動状セラミックスに代え、外型（ロ）、（
０間の空室内に適量のセラミックスの混線体または粉末
を充填して加圧すると、グリーン（５）が加圧成形され
る。On the other hand, instead of the fluid ceramics mentioned above, the outer mold (b), (
When an appropriate amount of ceramic crosstalk or powder is filled into the space between 0 and 0 and pressed, a green (5) is formed under pressure.
その後、外型（ロ）、（ｑを取外し、両側内型０付きグ
リーン（５）を外型（至）、（ｑ内から取出して焼成す
ると、その両側内ｍ、（１１の加熱によるガスが排ガス
路（６）内を通ってグリーン（５）外に放出されながら
、内型（ト）が燃焼または溶融しねじ孔（２）からグリ
ーン（８）外に排出されて製品が製造される。After that, remove the outer mold (b) and (q, and take out the green (5) with inner molds 0 on both sides from inside the outer mold (to) and (q) and fire it. While passing through the exhaust gas path (6) and being discharged to the outside of the green (5), the inner mold (G) is burned or melted and discharged from the screw hole (2) to the outside of the green (8) to produce a product.
その際、別法としては、グリーン（８）の焼成前に、先
ず、両側内ａｎ付きグリーン（４）を一定温度以上で加
熱しその内型口を燃焼または溶融させて除去する。その
後、グリーン（８）を焼成して製品を製造することもで
きる。In this case, as an alternative method, before firing the green (8), first, the green (4) with inner annular holes on both sides is heated above a certain temperature to burn or melt the inner mold opening and remove it. Thereafter, the green (8) can be fired to produce a product.
また、外型（ト）、（ｑを内型口と同様の可燃材料また
は融点の比較的低い材料によって作製することもできる
。Further, the outer mold (g) and (q) can be made of the same combustible material as the inner mold opening or a material with a relatively low melting point.
一方、ファインセラミックス、ニューセラミックス等の
製品も、上記と同様にして製造し得る。On the other hand, products such as fine ceramics and new ceramics can also be manufactured in the same manner as above.
第２図に示すこの発明の第二実施例は、第一実施例にお
ける内型０の他の構成を示すもので、その構造を図面に
ついて説明すれば、（Ｄ、）は両側の内型、を示し、（
４υは内型（ハ）の金属等より成るねじ軸で、その内側
端に小径の軸杆（７）を、外側端に操作部轡なそれぞれ
設ける。（５θ、は頭で、第一実施例の内盤０と同様の
材料により作製し、その頂（５υの外側面中心の孔（９
）をねじ軸（４）の軸杆（７）に嵌合して内ｍｌ （１
％）を構成する。その他の符号は第１図におけると同一
部分を示す。The second embodiment of the present invention shown in FIG. 2 shows a different configuration of the inner mold 0 in the first embodiment, and its structure will be explained with reference to the drawings. (D,) indicates inner molds on both sides, and (
4υ is a screw shaft made of metal or the like having an inner mold (c), and a small diameter shaft rod (7) is provided at the inner end thereof, and an operating portion is provided at the outer end thereof. (5θ is the head, made of the same material as the inner plate 0 of the first embodiment, and the top (5υ) of the hole (9
) into the shaft rod (7) of the screw shaft (4), and the inner ml (1
%). Other symbols indicate the same parts as in FIG.
この構造のものにおいても、第一実施例におけると一同
様に作業してグリーン（５）を成形することができる。In this structure as well, the green (5) can be formed by working in the same manner as in the first embodiment.
そこで、外型−、（ｑを取外し両−側内ｍ１（ＤＯ付き
グリーン（５）を外型（ト）、０内から取出した後、操
作部（８）Ｋよりねじ軸（４υをねじ戻してグリーン囚
から両側のねじ軸（４υを取除く。Therefore, after removing the outer mold (q) and taking out the green (5) with DO on both sides from the outer mold (g) and 0, unscrew the screw shaft (4υ) from the operating part (8) K. Remove the screw shafts (4υ) on both sides from the green cap.
次いで、両側部（５θ付きグリーン（５）を焼成すると
、その両側部（５υの加熱によるガスが頭（５υの孔（
９）からグリーン（６）のねじ孔（２）内を通ってグリ
ーン（６）外に放出されながら、＊（Ｓｔ）が燃焼また
は溶融しねじ孔（２）からグリーン（４）外に排出され
て製品が製造される。Next, when the green (5) with 5θ is fired on both sides (5υ), the gas from the heating at both sides (5υ) will form the head (5υ hole).
9) passes through the screw hole (2) of the green (6) and is released to the outside of the green (6), while *(St) is burned or melted and discharged from the screw hole (2) to the outside of the green (4). The product is then manufactured.
第３図に示すこの発明の第三実施例についてその構造を
説明すれば、（Ａ、）はグリーンで、一端に１１０（Ｉ
を、他端に座ａυをそれぞれ形成し、その中央部に凹所
（３雷）を設けると共ｋ、該凹所（３，）の他側中央お
よび頭部の中間上下にグリーン（Ａ４）外への連通孔ａ
３、輪をそれぞれ連設したものである。To explain the structure of the third embodiment of the invention shown in FIG. 3, (A,) is green, and one end has 110 (I
, a seat aυ is formed at the other end, and a recess (3 thunder) is provided in the center thereof, and a green (A4) is provided at the center of the other side of the recess (3,) and at the top and bottom of the middle of the head. Communication hole a to the outside
3. Each ring is connected in series.
（Ｄ、）は内型を示し、棒（４りに頭（５電）を、設け
て核部（５重）の上下に棒ａ４を突設し、その棒（４，
）から屓（５１）ｋ：わたり中心線上に棒（４８）の端
藺側が開放する排ガス路（６ｔ）を形成して成る。（＆
）、（Ｃ１）は鋳型の二つ割りにした上下の外型である
。・この構造のものにおいても、第一実施例におけると
同様に作業すれば、第一実施例と同様に作用してグリー
ン（Ａ４）が成形され、その焼成時に内型（ハ）がグリ
ーン（ん）の連通孔αの、０からグリーン（ン）外に排
出されて製品が製造される。(D,) shows the inner mold, a head (5 electric) is provided on the rod (4), a rod A4 is protruded above and below the core (5 layers), and the rod (4,
) to the bottom (51) k: An exhaust gas path (6t) is formed on the center line of the rod (48), with the end side of the rod (48) open. (&
), (C1) are the upper and lower outer molds of the mold divided into two parts.・With this structure, if you work in the same way as in the first example, it will work in the same way as in the first example, and a green (A4) will be formed, and when it is fired, the inner mold (c) will become a green (A4). ) is discharged from 0 to the outside of the green (n) to manufacture the product.
（発明の効果）
この発明のセラミック製品の製造方法は、下記のような
顕著な効果を有する。(Effects of the Invention) The method for manufacturing a ceramic product of the present invention has the following remarkable effects.
（１） グリーンの成形後、その内灘付きグリーンを
焼成し、または一定温度以上に加熱すると、内型が燃焼
または溶融しグリーン外に排出されてグリーンから脱型
される。従って、内方凹所の形状が複雑であったり、開
口部よりも内側部が拡開していてグリーンよりの内型の
脱型が困難な製品でも製造が可能となり、自由な形状の
製品を製造し得る。(1) After forming the green, when the inner mold is fired or heated above a certain temperature, the inner mold burns or melts and is discharged outside the green and removed from the mold. Therefore, it is possible to manufacture products with complicated inner recesses or where the inner part is wider than the opening, making it difficult to remove the inner mold from the green, and products with free shapes can be manufactured. Can be manufactured.
（２）焼成された製品を機械加工等で精密な寸法に仕上
げたりする場合、その切削、研磨等の加工量を最少にす
ることができて加工費の低減が計れる。(2) When finishing a fired product into precise dimensions by machining or the like, the amount of processing such as cutting and polishing can be minimized, reducing processing costs.
（３） エンジニアリングセラミック製品の製造の合
理化が計れる。(3) The manufacturing of engineering ceramic products can be streamlined.
第１図はこの発明に係るセラミック製品の製造方法の第
一実施例を示す縦断正面図、第２図はその第二実施例を
示す正断爾図、第３図は第三実施例を示す正断爾図であ
る。
＾・・・成形体、（ロ）、（Ｑ・・・外型、口・・・内
型、特許出願人 （０４４）岡部株式会社
＜６゜FIG. 1 is a longitudinal sectional front view showing a first embodiment of the method for manufacturing a ceramic product according to the present invention, FIG. 2 is a front sectional view showing the second embodiment, and FIG. 3 is a third embodiment. This is a correct drawing. ^... Molded object, (B), (Q... Outer mold, Mouth... Inner mold, Patent applicant (044) Okabe Co., Ltd. <6゜
Claims (1)
により作製した内型を配置してそれらによりセラミック
スの成形体を成形し、その後、その内型付き成形体を外
型内から取出し焼成または加熱して内型を燃焼または溶
融させ除去して製品を製造することを特徴とするセラミ
ック製品の製造方法。An inner mold made of a combustible material or a material with a relatively low melting point is placed inside the outer mold of the mold, and a ceramic molded body is formed using the inner mold, and then the molded body with the inner mold is taken out from the outer mold and fired. Or, a method for manufacturing a ceramic product, which comprises manufacturing the product by burning or melting and removing the inner mold by heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61311429A JPS63170275A (en) | 1986-12-29 | 1986-12-29 | Manufacture of ceramic products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61311429A JPS63170275A (en) | 1986-12-29 | 1986-12-29 | Manufacture of ceramic products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63170275A true JPS63170275A (en) | 1988-07-14 |
Family
ID=18017100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61311429A Pending JPS63170275A (en) | 1986-12-29 | 1986-12-29 | Manufacture of ceramic products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63170275A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992016471A1 (en) * | 1991-03-14 | 1992-10-01 | International Superconductivity Technology Center | Method of making oxide superconductor |
| US5459124A (en) * | 1991-03-14 | 1995-10-17 | International Superconductivity Technology Center | Process for producing oxide superconductor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS491605A (en) * | 1972-04-19 | 1974-01-09 | ||
| JPS59131404A (en) * | 1983-01-18 | 1984-07-28 | 株式会社ジヤパン・センサ−・コ−ポレイシヨン | Manufacture of high-temperature core |
| JPS62271703A (en) * | 1986-05-21 | 1987-11-26 | 日本道路公団 | Manufacture of grc product |
-
1986
- 1986-12-29 JP JP61311429A patent/JPS63170275A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS491605A (en) * | 1972-04-19 | 1974-01-09 | ||
| JPS59131404A (en) * | 1983-01-18 | 1984-07-28 | 株式会社ジヤパン・センサ−・コ−ポレイシヨン | Manufacture of high-temperature core |
| JPS62271703A (en) * | 1986-05-21 | 1987-11-26 | 日本道路公団 | Manufacture of grc product |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992016471A1 (en) * | 1991-03-14 | 1992-10-01 | International Superconductivity Technology Center | Method of making oxide superconductor |
| US5459124A (en) * | 1991-03-14 | 1995-10-17 | International Superconductivity Technology Center | Process for producing oxide superconductor |
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