JPH1112056A - Production of foaming ceramic material, foaming ceramic material and production of formed ceramic material - Google Patents
Production of foaming ceramic material, foaming ceramic material and production of formed ceramic materialInfo
- Publication number
- JPH1112056A JPH1112056A JP16917797A JP16917797A JPH1112056A JP H1112056 A JPH1112056 A JP H1112056A JP 16917797 A JP16917797 A JP 16917797A JP 16917797 A JP16917797 A JP 16917797A JP H1112056 A JPH1112056 A JP H1112056A
- Authority
- JP
- Japan
- Prior art keywords
- ceramic material
- slurry
- foamable
- foaming
- component
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、発泡性セラミック
材料の製造方法、発泡性セラミック材料、および、発泡
セラミック材の製造方法に関し、詳しくは、建材などに
利用されるセラミック材を製造するための原料となる発
泡性セラミック材料を製造する方法と、このような方法
で得られた発泡性セラミック材料と、このような発泡性
セラミック材料を用いてセラミック材を製造する方法と
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a foamable ceramic material, a method for producing a foamable ceramic material, and a method for producing a foamed ceramic material, and more particularly, to a method for producing a ceramic material used as a building material. The present invention relates to a method for producing a foamable ceramic material as a raw material, a foamable ceramic material obtained by such a method, and a method for producing a ceramic material using such a foamable ceramic material.
【０００２】[0002]
【従来の技術】セラミック材として、内部に多数の微細
な気孔を有する発泡セラミック材があり、軽量であると
ともに、断熱性や遮音性などの特性にも優れているとい
う特長がある。発泡セラミック材の製造方法として、ガ
ラス粉や白土などのセラミック物質に発泡成分その他の
原料が配合された泥漿材料を噴霧乾燥させて造粒物から
なる発泡性セラミック材料を製造し、この発泡性セラミ
ック材料を所定の形状に成形してから焼成を行って、発
泡セラミック材を得る方法が知られている。2. Description of the Related Art As a ceramic material, there is a foamed ceramic material having a large number of fine pores inside, and it has features that it is lightweight and has excellent properties such as heat insulation and sound insulation. As a method for producing a foamed ceramic material, a slurry material in which a foaming component and other raw materials are mixed with a ceramic substance such as glass powder and clay is spray-dried to produce a foamable ceramic material made of a granulated material. There is known a method in which a material is formed into a predetermined shape and then fired to obtain a foamed ceramic material.
【０００３】泥漿材料を噴霧乾燥させる方法は、発泡性
セラミック材料が効率的に製造できる。造粒物からなる
発泡性セラミック材料は、保管あるいは成形工程での取
扱いが容易であるとともに成形性も良く、焼成された発
泡セラミック材の特性も優れたものとなる。通常の発泡
セラミック材は、焼成温度を１２００〜１３００℃まで
上げる必要があったが、近年、発泡セラミック材料にア
ルカリ分が多く含まれる原料を用いることで、１０００
℃未満の低温で発泡および焼成を可能にする技術が提案
されている。低温焼成が可能であれば、焼成コストが削
減できるとともに、高温焼成には適用できない材料を使
用することも可能になる。[0003] The method of spray-drying the slurry material can efficiently produce a foamable ceramic material. The foamable ceramic material made of the granulated material is easy to handle in a storage or molding step, has good moldability, and has excellent properties of the fired foamed ceramic material. In the case of ordinary foamed ceramic materials, it was necessary to raise the firing temperature to 1200 to 1300 ° C.
Techniques have been proposed that enable foaming and sintering at low temperatures below ℃. If low-temperature firing is possible, firing costs can be reduced, and materials that cannot be applied to high-temperature firing can be used.
【０００４】[0004]
【発明が解決しようとする課題】ところが、発泡性セラ
ミック材料にアルカリ分が含まれていると、泥漿材料の
粘性が高くなり、噴霧乾燥によって造粒物を得ることが
困難になるという問題があった。噴霧乾燥を容易にする
ために、発泡性セラミック材料に解膠剤を添加しておく
ことが考えられたが、多量の解膠剤が必要になるためコ
ストが高くつくという問題のほか、数多くの問題が生じ
る。まず、解膠剤を含む泥漿材料は噴霧乾燥機の内壁や
ノズルに付着し易い。焼成されたセラミック材が着色さ
れてしまう。原料を湿式粉砕する際に泥漿材料の温度が
上昇し、いわゆる「ドボ」つきという現象が生じて粉砕
効率が悪くなる。However, if the foamable ceramic material contains an alkali, the viscosity of the slurry material becomes high, and it becomes difficult to obtain granules by spray drying. Was. In order to facilitate spray drying, it was considered to add a deflocculant to the foamable ceramic material. Problems arise. First, the slurry material containing the deflocculant tends to adhere to the inner wall and nozzle of the spray dryer. The fired ceramic material is colored. When the raw material is wet-pulverized, the temperature of the slurry material rises, and a phenomenon called “dobo” occurs, and the pulverization efficiency is deteriorated.
【０００５】そのため、噴霧乾燥を行わずに、パン型造
粒機を用いて、原料粉体に水を噴霧して造粒するという
方法も考えられるが、所望の粒径範囲の造粒物を得るに
は噴霧乾燥に比べて歩留りが悪く、生産性が悪くてコス
トが高くつくという問題がある。そこで、本発明の課題
は、前記した低温焼成が可能な発泡性セラミック材料
を、噴霧乾燥でも製造できるようにすることである。[0005] For this reason, a method of spraying water on the raw material powder using a pan-type granulator without spray drying to granulate the raw material powder may be considered. There are problems in that the yield is lower than in spray drying, the productivity is low, and the cost is high. Therefore, an object of the present invention is to make it possible to produce the foamable ceramic material that can be fired at a low temperature by spray drying.
【０００６】[0006]
【課題を解決するための手段】本発明にかかる発泡性セ
ラミック材料の製造方法は、以下の工程を含む。セラミ
ック物質と発泡成分とアルカリ成分と硼酸とを含有する
原料を湿式粉砕して泥漿材料を得る工程。前記泥漿材料
を噴霧乾燥して造粒物からなる発泡性セラミック材料を
得る工程。The method for producing a foamable ceramic material according to the present invention includes the following steps. A step of wet-grinding a raw material containing a ceramic substance, a foaming component, an alkali component and boric acid to obtain a slurry material. A step of spray-drying the slurry material to obtain a foamable ceramic material composed of granules.
【０００７】個々の構成について具体的に説明する。
〔セラミック物質〕発泡セラミック材の基本構造を構成
する材料であり、通常の発泡性セラミック材料と同様の
各種セラミック物質が用いられる。例えば、ガラス、白
土などが挙げられる。複数の物質を組み合わせて用いる
ことも勿論可能である。The individual components will be specifically described.
[Ceramic substance] This is a material constituting the basic structure of a foamed ceramic material, and various ceramic substances similar to ordinary foamable ceramic materials are used. For example, glass, clay, and the like can be given. Of course, a plurality of substances can be used in combination.
【０００８】〔発泡成分〕焼成により化学的あるいは物
理的に発泡する物質である。発泡成分としては、無機材
料および有機材料の何れもが用いられる。例えば、グラ
ニュー糖などの水溶性高分子材料が用いられる。 〔アルカリ成分〕発泡セラミック材の焼成温度を下げる
作用のある材料である。具体的には、ソーダ灰などが用
いられる。なお、前記したセラミック物質その他の原料
中にもアルカリ性を示す物質が含まれていれば、これら
のアルカリ物質もアルカリ成分に含まれる。アルカリ成
分の配合量が多いほど、焼成温度を下げる作用が高くな
る。[Foaming component] A substance which foams chemically or physically when fired. As the foaming component, any of an inorganic material and an organic material is used. For example, a water-soluble polymer material such as granulated sugar is used. [Alkali component] A material having an effect of lowering the firing temperature of the foamed ceramic material. Specifically, soda ash or the like is used. In addition, if the ceramic substance and the other raw materials also contain a substance exhibiting alkalinity, these alkaline substances are also included in the alkaline component. The effect of lowering the firing temperature increases as the amount of the alkaline component increases.
【０００９】〔硼酸〕アルカリ成分の配合によって泥漿
材料の粘性が高くなるのを抑える作用がある。したがっ
て、アルカリ成分の配合量に合わせて、あるいは、噴霧
乾燥などの作業性を考慮して硼酸の配合量が設定され
る。具体的には、発泡性セラミック材料の全体に対して
０．５〜２．０重量％を配合しておくのが好ましい。[Boric acid] The addition of an alkali component has the effect of suppressing the viscosity of the slurry material from increasing. Therefore, the amount of boric acid is set in accordance with the amount of alkali component or in consideration of workability such as spray drying. Specifically, it is preferable to mix 0.5 to 2.0% by weight with respect to the whole of the foamable ceramic material.
【００１０】〔発泡性セラミック材料〕発泡性セラミッ
ク材料の原料としては、前記物質の他に、通常の発泡性
セラミック材料に配合される各種の物質を組み合わせて
用いることができる。例えば、無機質顔料を含んでいれ
ば、着色された発泡セラミック材が得られる。有機質バ
インダーを含んでいれば、造粒や成形が行い易くなる。
フリットを配合しておけば、発泡性セラミック材料の融
点が下がり、焼成温度を低下させる効果がある。但し、
フリットは高価であるため、前記したソーダ灰などのア
ルカリ成分で焼成温度を下げるほうが好ましい。ソーダ
灰などの配合量を増やせば、フリットの配合量を削減す
ることができる。[Expandable Ceramic Material] As a raw material of the expandable ceramic material, in addition to the above-mentioned substances, various kinds of substances mixed with ordinary expandable ceramic materials can be used in combination. For example, if an inorganic pigment is contained, a colored foamed ceramic material can be obtained. If an organic binder is contained, granulation and molding are facilitated.
The addition of the frit has the effect of lowering the melting point of the foamable ceramic material and lowering the firing temperature. However,
Since the frit is expensive, it is preferable to lower the firing temperature with an alkali component such as the above-mentioned soda ash. Increasing the amount of soda ash and the like can reduce the amount of frit.
【００１１】〔泥漿材料〕発泡性セラミック材料の原料
に水などの液媒体を加えた状態で、湿式粉砕により微細
に粉砕すると同時に均一に混合して、泥漿材料を得る。
湿式粉砕装置としては、ボールミルなどの通常のセラミ
ック技術で利用されている湿式粉砕装置が用いられる。
水の添加量などの湿式粉砕の処理条件も、通常の発泡性
セラミック材料における処理条件が適用できる。[Slurry material] In a state where a liquid medium such as water is added to the raw material of the foamable ceramic material, the material is finely pulverized by wet pulverization and simultaneously uniformly mixed to obtain a slurry material.
As the wet pulverizer, a wet pulverizer used in ordinary ceramic technology such as a ball mill is used.
Processing conditions for wet foaming ceramic materials, such as the amount of water added, can be the same as those for ordinary foamable ceramic materials.
【００１２】発泡性セラミック材料の原料のうち、一部
の原料だけを湿式粉砕して、その後で残りの原料を加え
ることもできる。例えば、比較的分散混合が行い易く粉
砕する必要のない原料であれば、湿式粉砕の後で攪拌混
合するだけでも構わない。湿式粉砕により得られた泥漿
材料の性状として、ｐＨ１０以下が好ましく、ｐＨ９．
５以下がさらに望ましい。粘度は２００cps 以下が好ま
しい。泥漿材料のｐＨおよび粘度は、原料の配合割合、
水の添加量、湿式粉砕の処理条件によって変わる。[0012] Of the raw materials of the expandable ceramic material, only a part of the raw materials may be wet-pulverized, and then the remaining raw materials may be added. For example, as long as the raw material does not need to be pulverized because it is relatively easy to mix and disperse, it may be sufficient to simply stir and mix after wet pulverization. The properties of the slurry material obtained by wet grinding are preferably pH 10 or less, and pH 9 or less.
5 or less is more desirable. The viscosity is preferably 200 cps or less. The pH and viscosity of the slurry material are determined by the mixing ratio of the raw materials,
It varies depending on the amount of water added and the wet pulverization processing conditions.
【００１３】泥漿材料の水分量は、低粘度で流動性も十
分に確保できれば、少ない水分量で十分であり、通常は
６０重量％以下が好ましい。湿式粉砕の処理前の原料あ
るいは処理後の泥漿材料を、篩装置などで粒径調整する
ことができる。湿式粉砕の前に粒径調整を行っておけ
ば、湿式粉砕の効率が良くなる。泥漿材料の粒径調整を
行えば、湿式粉砕後に残る過大な粒子などを除去するこ
とができる。The water content of the slurry material is sufficient if the viscosity is low and the fluidity can be sufficiently ensured. A small water content is sufficient, and usually 60% by weight or less is preferable. The particle size of the raw material before the wet pulverization or the slurry material after the processing can be adjusted by a sieve or the like. If the particle size is adjusted before wet grinding, the efficiency of wet grinding can be improved. If the particle size of the slurry material is adjusted, excessive particles remaining after wet pulverization can be removed.
【００１４】〔噴霧乾燥〕泥漿材料を噴霧乾燥すれば、
造粒物からなる発泡性セラミック材料が得られる。噴霧
乾燥装置は、いわゆるスプレードライヤーと呼ばれる装
置が用いられる。スプレードライヤーは、ノズルの先端
から泥漿材料を噴出させて細かな霧状の液滴にすると同
時にそこに熱風を吹きつけて液滴を乾燥させ、顆粒状の
発泡性発泡性セラミック材料を得る。また、回転円板に
供給された泥漿材料を遠心力で放散させて噴霧するディ
スクスプレー装置も利用できる。[Spray drying] If the slurry material is spray-dried,
An expandable ceramic material comprising the granules is obtained. As the spray drying device, a device called a so-called spray dryer is used. The spray dryer ejects a slurry material from the tip of a nozzle into fine mist-like droplets, and simultaneously blows hot air onto the droplets to dry the droplets to obtain a granular foamable foamable ceramic material. Further, a disk spraying device that sprays the slurry material supplied to the rotating disk by dispersing the material by centrifugal force can also be used.
【００１５】造粒された発泡性セラミック材料の粒径
は、０．５〜２．０mmが好ましい。噴霧乾燥により造粒
された発泡性セラミック材料は、保管や成形などの取扱
いが行い易くなる。また、造粒された発泡性セラミック
材料から成形された成形物を焼成すると、表面が平滑な
発泡セラミック材が得られ易いという利点もある。特
に、発泡セラミック材の場合、造粒していない通常の粉
体材料のままでは粉体材料の焼成収縮によって発泡セラ
ミック材の表面にクレータ状の凹凸が生じるという欠点
があるが、造粒された発泡性セラミック材料を用いた場
合にはこのような問題が生じ難い。The particle size of the granulated foamable ceramic material is preferably 0.5 to 2.0 mm. The foamable ceramic material granulated by spray drying is easy to handle such as storage and molding. In addition, there is also an advantage that when a molded article molded from the granulated foamable ceramic material is fired, a foamed ceramic material having a smooth surface is easily obtained. In particular, in the case of a foamed ceramic material, there is a drawback that crater-like irregularities are generated on the surface of the foamed ceramic material due to shrinkage of the powder material when the powder material is not granulated as it is, but granulated. Such problems are unlikely to occur when a foamable ceramic material is used.
【００１６】〔発泡セラミック材の製造〕発泡性セラミ
ック材料から発泡セラミック材を製造する方法は、通常
の発泡セラミック材の製造方法と同様でよい。粉粒状の
発泡性セラミック材料をそのまま焼成して、粉粒状の発
泡セラミック材を得ることもできるが、粉粒状の発泡性
セラミック材料を適宜形状に成形して成形物を得たあ
と、成形物を焼成すれば、所望形状の発泡セラミック材
を得ることができる。成形物は乾燥や養生工程を経て焼
成することができる。[Production of a foamed ceramic material] A method of producing a foamed ceramic material from a foamable ceramic material may be the same as a usual method for producing a foamed ceramic material. Although the powdered and granular foamable ceramic material can be directly baked to obtain a powdered and granular foamed ceramic material, the powdered and granular foamable ceramic material is molded into an appropriate shape to obtain a molded product. By firing, a foamed ceramic material having a desired shape can be obtained. The molded product can be fired through a drying and curing process.
【００１７】焼成工程において、焼成温度を１０００℃
未満で行うことができる。本発明の発泡性セラミック材
料は、焼成温度が低くても良好な焼成が達成される。こ
のようにして得られた発泡セラミック材は、通常の発泡
セラミック材と同様の用途に用いられる。例えば、建築
分野において軽量骨材や軽量パネルとして有用である。In the firing step, the firing temperature is set to 1000 ° C.
Can be done in less than. The foamable ceramic material of the present invention achieves good firing even at a low firing temperature. The foamed ceramic material thus obtained is used for the same applications as ordinary foamed ceramic materials. For example, it is useful as a lightweight aggregate or a lightweight panel in the construction field.
【００１８】[0018]
【発明の実施形態】本発明の実施形態を具体的実施例に
より説明する。 −実施例１− 下記表１に示す配合で発泡性セラミック材料を調整し、
それを成形および焼成して発泡セラミック材を製造す
る。なお、解膠剤はディスパーサント５０２７（商品
名）を用いた。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to specific examples. -Example 1-A foamable ceramic material was prepared according to the formulation shown in Table 1 below,
It is molded and fired to produce a foamed ceramic material. The peptizer used was Dispersant 5027 (trade name).
【００１９】[0019]
【表１】 ──────────────────────────────── 配合例 １ ２ ３ ４ ５ ──────────────────────────────── ガラス粉 ５０ ５０ ５０ ５０ ５０ 白 土 ４０．５ ４０．５ ４０．５ ４０．５ ４０．５ 硼 酸 ０ ０．５ １．０ １．５ ２．０ ソーダ灰 ７ ７ ７ ７ ７ 硝酸ソーダ １ １ １ １ １ グラニュー糖 ０．５ ０．５ ０．５ ０．５ ０．５ 解膠剤 ２ − − − − 水 ６０ ６０ ６０ ６０ ６０ ──────────────────────────────── ｐＨ １２．０ １０．６ １０．０ ９．５ ９．２ 粘度 cps ２６０ ２３０ １９５ １８０ １５０ ──────────────────────────────── 各配合の単位は重量％ 上記配合例１〜５の配合原料１kgを２kgボールミルに入
れ、１５時間かけて湿式粉砕を行った。得られた泥漿の
ｐＨおよび粘度を測定した。配合例２〜５では、硼酸の
配合量が多くなるほどｐＨおよび粘度が小さくなった。
配合例１は、硼酸を用いずに、各種の解膠剤を用いて測
定した中からｐＨおよび粘度が最も低いデータを示した
が、それでも硼酸を用いる配合例２〜５に比べると高い
ｐＨおよび粘度しか達成されなかった。[Table 1] {Formulation example 1 2 3 4 5} ───────────────────────── Glass powder 50 50 50 50 50 White clay 40.5 40.5 40.5 40.5 40.5 Bor Acid 0 0.5 1.0 1.5 2.0 Soda ash 777 7777 Sodium nitrate 111 1 11 Granulated sugar 0.5 0.5 0.5 0.5 0.5 Peptizer 2- − − − Water 60 60 60 60 60 ──────────────────────────────── pH 12.0 10.6 10. 0 9.5 9.2 Viscosity cps 260 230 195 180 150 150 単 位 Unit of each formulation Is the weight% of the above formulation examples 1 to 5. Put the raw materials 1kg to 2kg ball mill, was wet-ground over a period of 15 hours. The pH and viscosity of the obtained slurry were measured. In Formulation Examples 2 to 5, the pH and viscosity decreased as the amount of boric acid increased.
Formulation Example 1 did not use boric acid and showed the lowest pH and viscosity data among those measured using various deflocculants, but still higher pH and viscosity than Formulation Examples 2 to 5 using boric acid. Only a viscosity was achieved.
【００２０】配合例４の原料１００kgを２００kgボール
ミルに入れ、２４時間かけて湿式粉砕を行った。得られ
た泥漿のｐＨは９．４、粘度は１７７cps であり、流動
性の良いものであった。泥漿材料をスプレードライヤー
で噴霧乾燥させた。得られた顆粒状の発泡性セラミック
材料の粒径は０．７mmを中心にして０．５〜１．０mmの
粒度分布を示した。含水率は７％であった。100 kg of the raw material of Formulation Example 4 was placed in a 200 kg ball mill, and wet milled for 24 hours. The obtained slurry had a pH of 9.4 and a viscosity of 177 cps, and had good fluidity. The slurry material was spray dried with a spray dryer. The particle size of the obtained granular foamable ceramic material showed a particle size distribution of 0.5 to 1.0 mm centering on 0.7 mm. The water content was 7%.
【００２１】電気炉内にステンレス製杉織ネットを敷
き、ネット表面に離型剤を塗布して乾燥させた。このネ
ット上に内面に離型剤を塗ったステンレス枠（３０×３
０×１０cm）を配置した。ステンレス枠の中に発泡性セ
ラミック材料を１．５cmの厚みで供給して板状に成形し
た。その後、８５０℃まで３時間で昇温し１５分間保持
して焼成を行った。炉内温度が１００℃になるまで冷却
したあと、焼成された発泡セラミック材を取り出した。
その結果、厚み４０mmの板状をなす発泡セラミック材を
得た。発泡セラミック材の嵩比重は０．６であり、その
断面は小さな揃った形状の気孔で構成されていることが
確認され、表面も平滑であった。A stainless steel woven woven net was laid in an electric furnace, a release agent was applied to the surface of the net, and the net was dried. On this net, a stainless steel frame (30 × 3
0 × 10 cm). The foamable ceramic material was supplied into a stainless steel frame at a thickness of 1.5 cm and formed into a plate shape. Thereafter, the temperature was raised to 850 ° C. in 3 hours and held for 15 minutes to perform firing. After cooling down to a furnace temperature of 100 ° C., the fired foamed ceramic material was taken out.
As a result, a plate-shaped foamed ceramic material having a thickness of 40 mm was obtained. The bulk specific gravity of the foamed ceramic material was 0.6, and it was confirmed that the cross section was composed of small uniform pores, and the surface was smooth.
【００２２】[0022]
【発明の効果】本発明にかかる発泡性セラミック材料の
製造方法は、原料にアルカリ成分を配合することで焼成
温度を１０００℃未満に低下させることが可能である。
しかも、硼酸を配合することで、アルカリ成分の配合に
よる粘性増大を防止し、噴霧乾燥による造粒に適した粘
性状態に維持することができる。その結果、噴霧乾燥に
よる製造の能率化および造粒物の取扱い易さや成形のし
易さという利点を生かしながら、低温焼成が可能な発泡
性セラミック材料を提供することができる。このような
発泡性セラミック材料を成形し１０００℃未満で焼成さ
れた発泡セラミック材は、経済的に製造できるととも
に、高温焼成では得られない優れた特性を有する発泡セ
ラミック材となる。According to the method for producing a foamable ceramic material according to the present invention, it is possible to lower the firing temperature to less than 1000 ° C. by adding an alkali component to the raw material.
In addition, by adding boric acid, an increase in viscosity due to the addition of an alkali component can be prevented, and a viscous state suitable for granulation by spray drying can be maintained. As a result, a foamable ceramic material that can be fired at a low temperature can be provided while taking advantage of the efficiency of production by spray drying and the ease of handling and molding of granules. A foamed ceramic material molded from such a foamable ceramic material and fired at a temperature of less than 1000 ° C. can be economically manufactured and has excellent properties that cannot be obtained by high-temperature firing.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀家 大士 大阪府豊中市新千里西町１丁目１番４号 ナショナル住宅産業株式会社内 (72)発明者 永井 了 岐阜県土岐市駄知町2321の２ 高砂工業株 式会社内 (72)発明者 斉田 公昭 岐阜県土岐市駄知町2321の２ 高砂工業株 式会社内 (72)発明者 山内 泰治 岐阜県土岐市駄知町2321の２ 高砂工業株 式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Daishi Horiya 1-1-4 Shinsenri Nishimachi, Toyonaka-shi, Osaka National Housing Industry Co., Ltd. (72) Inventor Ryo Nagai 2321-2, Dachi-cho, Toki-shi, Gifu Inside Takasago Industry Co., Ltd. (72) Inventor Kimiaki Saita 2231-2, Dachi-cho, Toki-shi, Gifu Prefecture Inside Takasago Industry Co., Ltd.
Claims (4)
と硼酸とを含有する原料を湿式粉砕して泥漿材料を得る
工程と、 前記泥漿材料を噴霧乾燥して造粒物からなる発泡性セラ
ミック材料を得る工程とを含む発泡性セラミック材料の
製造方法。1. A step of wet-grinding a raw material containing a ceramic substance, a foaming component, an alkali component, and boric acid to obtain a slurry material, and spray-drying the slurry material to form a foamable ceramic material comprising granules. Obtaining a foamable ceramic material.
度が２００cps 以下の泥漿材料を得る請求項１に記載の
発泡性セラミック材料の製造方法。2. The method for producing a foamable ceramic material according to claim 1, wherein the step of obtaining the slurry material obtains a slurry material having a pH of 10 or less and a viscosity of 200 cps or less.
た発泡性セラミック材料。3. A foamable ceramic material obtained by the method according to claim 1.
泡性セラミック材料を成形して成形物を得る工程と、 前記成形物を１０００℃未満の焼成温度で焼成する工程
とを含む発泡セラミック材の製造方法。4. A foaming method comprising the steps of: molding a foamable ceramic material obtained by the production method according to claim 1 to obtain a molded product; and firing the molded product at a firing temperature of less than 1000 ° C. Manufacturing method of ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16917797A JP3895831B2 (en) | 1997-06-25 | 1997-06-25 | Method for producing a foamable ceramic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16917797A JP3895831B2 (en) | 1997-06-25 | 1997-06-25 | Method for producing a foamable ceramic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1112056A true JPH1112056A (en) | 1999-01-19 |
| JP3895831B2 JP3895831B2 (en) | 2007-03-22 |
Family
ID=15881681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16917797A Expired - Fee Related JP3895831B2 (en) | 1997-06-25 | 1997-06-25 | Method for producing a foamable ceramic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3895831B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005087676A1 (en) * | 2004-03-12 | 2005-09-22 | Dennert Poraver Gmbh | Method for the production of a foamed glass granulate |
| JP2007290935A (en) * | 2006-04-27 | 2007-11-08 | Nagoya Institute Of Technology | Porous granule and its production method |
| CN115124368A (en) * | 2022-06-02 | 2022-09-30 | 深圳市思超科技有限公司 | Foamed ceramic powder and preparation method and application thereof |
-
1997
- 1997-06-25 JP JP16917797A patent/JP3895831B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005087676A1 (en) * | 2004-03-12 | 2005-09-22 | Dennert Poraver Gmbh | Method for the production of a foamed glass granulate |
| JP2007290935A (en) * | 2006-04-27 | 2007-11-08 | Nagoya Institute Of Technology | Porous granule and its production method |
| CN115124368A (en) * | 2022-06-02 | 2022-09-30 | 深圳市思超科技有限公司 | Foamed ceramic powder and preparation method and application thereof |
| CN115124368B (en) * | 2022-06-02 | 2023-05-09 | 深圳市思超科技有限公司 | Foamed ceramic powder and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3895831B2 (en) | 2007-03-22 |
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