JP2648071B2 - Manufacturing method of porous ceramic plate - Google Patents
Manufacturing method of porous ceramic plateInfo
- Publication number
- JP2648071B2 JP2648071B2 JP17090792A JP17090792A JP2648071B2 JP 2648071 B2 JP2648071 B2 JP 2648071B2 JP 17090792 A JP17090792 A JP 17090792A JP 17090792 A JP17090792 A JP 17090792A JP 2648071 B2 JP2648071 B2 JP 2648071B2
- Authority
- JP
- Japan
- Prior art keywords
- porous ceramic
- ceramic plate
- layer
- decorative layer
- inorganic
- 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
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
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Panels For Use In Building Construction (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は多孔質セラミック板の製
法に関する。さらに詳しくは、化粧層表面に発生するぶ
くや化粧層とベース層の界面に発生する泡がみを防止し
て、外観を改良するとともに製品厚さの均一化を図るこ
とができる多孔質セラミック板の製法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a porous ceramic plate. More specifically, a porous ceramic that can prevent appearance of bubbles on the surface of the decorative layer and bubbles generated at the interface between the decorative layer and the base layer, improve the appearance, and achieve a uniform product thickness. It relates to the manufacturing method of the board.
【０００２】[0002]
【従来の技術】多孔質セラミック板は、軽量であり、耐
火性や断熱性などに優れているため建築材料として用い
られつつある。この多孔質セラミック板は耐凍害性を改
良したり、表面の意匠性を向上させるために表面化粧が
施される。かかる多孔質セラミック板の表面化粧として
は、図２に示されるように、無機発泡性造粒物からなる
ベース層１１上に着色配合された釉薬粒を積層して表面
化粧層１２とし、えられた積層体を溶化一体化させるこ
とが行なわれている。2. Description of the Related Art Porous ceramic plates are being used as building materials because they are lightweight and have excellent fire resistance and heat insulation. This porous ceramic plate is subjected to surface decoration in order to improve the frost damage resistance and the surface design. As shown in FIG. 2, the surface decoration of such a porous ceramic plate is obtained by laminating glaze granules colored and blended on a base layer 11 made of inorganic foamed granules to form a surface decoration layer 12, which is obtained. Is performed by melting and integrating the laminated body.
【０００３】[0003]
【発明が解決しようとする課題】ところが、前記構成の
多孔質セラミック板においては、化粧層１２の表面にぶ
く（内部にはガスが含まれており、表面が薄膜であるた
め、爪で押さえると薄膜がわれる程度の表面欠陥）１３
が発生したり、また化粧層１２とベース層１１の界面に
泡がみ１４が多発するという問題があった。これらは、
含水率の高い（８〜15％）化粧粒中の水分が含水率の低
い（０〜５％）ベース粒側にいったん移行し、ベース粒
中に含まれているソーダ灰、硝酸ソーダなどの可溶性の
融剤かつ発泡剤である成分を境界層付近または化粧粒中
に移行させることに起因している。そして、前記ぶくや
泡がみが発生すると、外観上好ましくないばかりでな
く、製品の厚さが不均一になるという不都合がある。However, in the porous ceramic plate having the above structure, the surface of the decorative layer 12 is bumped (gas is contained therein, and the surface is a thin film. Surface defect to the extent that it is removed) 13
And the occurrence of bubbles 14 frequently occurs at the interface between the decorative layer 12 and the base layer 11. They are,
Moisture in the high-moisture content (8 to 15%) cosmetic particles once migrates to the low-moisture-content (0 to 5%) base particle side, and is soluble in soda ash and sodium nitrate contained in the base particles. This is due to the fact that the component which is the flux and the foaming agent is transferred to the vicinity of the boundary layer or into the cosmetic particles. When the dust and bubbles are generated, not only is the appearance unfavorable, but also the thickness of the product becomes uneven.
【０００４】このばあいに、含水率の高い化粧粒を乾燥
させて予め水分を少なくしてしまうことも考えられる
が、こうすると化粧粒が粉化してしまうため、色安定性
に欠けるとともにチャージの不具合が発生するという別
の問題が発生してしまう。[0004] In this case, it is conceivable that the cosmetic particles having a high moisture content are dried to reduce the amount of water in advance, but this causes the cosmetic particles to be powdered, so that the cosmetic particles lack color stability and charge. Another problem occurs in that a malfunction occurs.
【０００５】本発明は、叙上の事情に鑑み、化粧粒から
の水分の移行を防いで前記ぶくや泡がみが発生すること
がない多孔質セラミック板の製法を提供することを目的
とする。SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a method for producing a porous ceramic plate which prevents migration of moisture from cosmetic particles and does not cause the formation of bubbles and bubbles. I do.
【０００６】[0006]
【課題を解決するための手段】本発明の多孔質セラミッ
ク板の製法は、無機発泡性造粒物からなるベース層上に
表面化粧層を形成し、えられた積層体を加熱して溶化一
体化させる多孔質セラミック板の製法であって、前記ベ
ース層と表面化粧層のあいだに、無機粉砕粒からなるブ
ロック層を設けることを特徴としている。According to the method of manufacturing a porous ceramic plate of the present invention, a decorative surface layer is formed on a base layer made of an inorganic foamed granulated material, and the obtained laminate is heated and integrated into a solution. A method for producing a porous ceramic plate, wherein a block layer made of inorganic pulverized particles is provided between the base layer and the surface decorative layer.
【０００７】[0007]
【作用】本発明の製法においては、化粧層とベース層の
あいだに、含水率の低い無機粉砕粒からなる層を設け
て、化粧層からベース層への水分の移行を防ぐようにし
ているため、ベース層中の融剤かつ発泡剤である成分が
この水分に溶けて化粧層側へ移行することが防止され
る。In the process of the present invention, a layer composed of inorganic pulverized particles having a low water content is provided between the decorative layer and the base layer to prevent the transfer of moisture from the decorative layer to the base layer. In addition, the components of the base layer, which are a flux and a foaming agent, are prevented from dissolving in the water and moving toward the decorative layer.
【０００８】[0008]
【実施例】図１は本発明の多孔質セラミック板の製法の
原料チャージ段階における断面説明図である。FIG. 1 is a sectional view of a porous ceramic plate according to the present invention in a raw material charging stage of the method.
【０００９】本発明において、ベース層１を構成する無
機発泡性造粒物は、酸性白土、シラス、真珠岩、抗火
石、長石などのＡｌ2 Ｏ3 −ＳｉＯ2 系鉱物を主原料と
して、これにソーダ灰、硝酸ソーダ、ガラス粉、硼酸、
硼砂などの融剤やドロマイト、ＳｉＣ、炭酸バリウム、
炭酸カリウムなどの発泡剤などを補助的に配合したもの
を粉末化して、造粒したものである。原料の種類やその
配合割合は、発泡倍率、溶融温度などに応じて適宜選定
すればよく、本発明においてとくに限定されるものでは
ない。In the present invention, the inorganic foamed granules constituting the base layer 1 are mainly made of Al 2 O 3 —SiO 2 based minerals such as acid clay, shirasu, perlite, anti-firestone and feldspar. Soda ash, sodium nitrate, glass powder, boric acid,
Fluxes such as borax, dolomite, SiC, barium carbonate,
It is obtained by powdering and granulating a material supplemented with a foaming agent such as potassium carbonate. The types of the raw materials and the mixing ratio thereof may be appropriately selected according to the expansion ratio, the melting temperature, and the like, and are not particularly limited in the present invention.
【００１０】前記配合原料は、たとえば直径１０ｍｍ程
度のスチールボールと共にポットミルに入れられ、数時
間程度乾式粉砕される。えられる粉末は、３２５メッシ
ュパス９６％以上程度の大きさであり、この粉末に糖蜜
水溶液やＣＭＣ水溶液などを噴霧しながらパンペレタイ
ザーなどで造粒が行なわれる。粒径は通常０．５〜５ｍ
ｍ程度である。[0010] The compounding raw materials are put into a pot mill together with, for example, steel balls having a diameter of about 10 mm, and are dry-ground for several hours. The obtained powder has a size of about 325 mesh pass 96% or more, and the powder is granulated by a pan pelletizer or the like while spraying an aqueous solution of molasses or an aqueous solution of CMC. Particle size is usually 0.5-5m
m.
【００１１】ベース層１の厚さは、本発明においてとく
に限定されないが、通常３〜３５ｍｍ程度であり、好ま
しくは約１０ｍｍである。Although the thickness of the base layer 1 is not particularly limited in the present invention, it is usually about 3 to 35 mm, preferably about 10 mm.
【００１２】表面化粧層２としては着色配合された釉薬
粒を用いることができる。表面化粧層の厚さも、本発明
においてとくに限定されないが、通常３〜７ｍｍ程度で
あり、好ましくは約５ｍｍである。As the surface decorative layer 2, glaze grains which are colored and blended can be used. Although the thickness of the surface decorative layer is not particularly limited in the present invention, it is usually about 3 to 7 mm, and preferably about 5 mm.
【００１３】本発明では前記ベース層１と表面化粧層２
のあいだに無機粉砕粒からなるブロック層３を設けた点
に特徴がある。無機粉砕粒とは、いったん焼成して乾燥
した無機物を粉砕したものであり、かかる無機物の具体
例としては多孔質セラミック板の廃材、廃ガラス、フリ
ット、天然ガラス質原料などをあげることができる。こ
のうち、資源のリサイクルとともにコストダウンを図る
という観点より、廃材を用いるのが好ましい。In the present invention, the base layer 1 and the surface decorative layer 2
The feature is that a block layer 3 made of inorganic pulverized particles is provided between the two. The inorganic pulverized particles are obtained by pulverizing an inorganic substance which has been fired once and dried, and specific examples of such an inorganic substance include waste materials of a porous ceramic plate, waste glass, frit, natural glassy raw material and the like. Of these, it is preferable to use waste materials from the viewpoint of cost reduction along with resource recycling.
【００１４】無機粉砕粒からなるブロック層３の厚さ
は、粒径とも関連するが、通常０．５〜４ｍｍの範囲で
あり、好ましくは約２ｍｍである。厚さが０．５ｍｍの
ばあいは水分の移行を確実にブロックするためには粒径
を０．２ｍｍ程度と小さくする必要がある。なお、２ｍ
ｍの厚さに対しては粒径１ｍｍ程度のものを用いるのが
好ましい。The thickness of the block layer 3 made of inorganic pulverized particles is generally in the range of 0.5 to 4 mm, preferably about 2 mm, although it is related to the particle size. When the thickness is 0.5 mm, it is necessary to reduce the particle size to about 0.2 mm in order to reliably block the transfer of moisture. In addition, 2m
It is preferable to use a material having a particle size of about 1 mm for a thickness of m.
【００１５】前記無機粉砕粒は含水率が０〜２％と非常
に小さいため、化粧層を構成する粒からの水分がベース
層へ移行するのを確実に防止することができる。Since the inorganic pulverized particles have a very small water content of 0 to 2%, it is possible to reliably prevent the water from the particles constituting the decorative layer from migrating to the base layer.
【００１６】つぎに本発明の多孔質セラミック板の製法
を実施例に基づき説明するが、本発明はもとよりかかる
実施例にのみ限定されるものではない。Next, the method for producing the porous ceramic plate of the present invention will be described based on examples, but the present invention is not limited to these examples.
【００１７】実施例ベース層原料の調製 大谷石６４．５％（重量％、以下同様）、ソーダ灰１８
％、水ガラス粉５％、三立タルク１２％およびＳｉＣ
０．５％からなる配合原料を１０ｍｍφのスチールボー
ルとともにポットミルにいれ４時間のあいだ乾式粉砕し
た。えられた粉末は３２５メッシュパス９６％以上の大
きさであった。この粉末に１５％糖蜜液を噴霧しながら
パンペレタイザーにて造粒し、粒径１〜４ｍｍの造粒物
をえた。EXAMPLES Preparation of Base Layer Raw Materials 64.5% (weight%, hereinafter the same) of Otani stone, soda ash 18
%, Water glass powder 5%, Sanritsu talc 12% and SiC
The raw material mixture containing 0.5% was put in a pot mill together with 10 mm φ steel balls and dry-ground for 4 hours. The resulting powder had a size of 325 mesh pass 96% or more. The powder was granulated with a pan pelletizer while spraying a 15% molasses solution to obtain a granulated product having a particle size of 1 to 4 mm.
【００１８】表面化粧層原料の調製 ガラス粉６２％、フリット２５％、水簸粘土５％および
ケイ酸ジルコニウム８％からなる配合原料を１０ｍｍφ
のスチールボールとともにポットミルに入れ５時間のあ
いだ乾式粉砕した。えられた粉末は３２５メッシュパス
９６％以上の大きさであった。この粉末に１０％糖蜜液
を噴霧しながらパンペレタイザーにて造粒し、粒径１〜
２．５ｍｍの造粒物をえた。 Preparation of Raw Material for Surface Coating Layer A raw material composed of 62% glass powder, 25% frit, 5% elutriated clay and 8% zirconium silicate was mixed with 10 mm φ.
Was placed in a pot mill together with the steel balls of Example 1 and dry-ground for 5 hours. The resulting powder had a size of 325 mesh pass 96% or more. This powder is granulated with a pan pelletizer while spraying a 10% molasses solution,
2.5 mm granules were obtained.
【００１９】ブロック層の調製 前記ベース層原料および化粧層原料を積層、焼成した多
孔質セラミック板の廃材を粉砕して平均粒径１ｍｍの無
機粉砕粒をえた。 Preparation of Block Layer The waste material of the porous ceramic plate obtained by laminating and firing the base layer raw material and the decorative layer raw material was pulverized to obtain inorganic pulverized particles having an average particle diameter of 1 mm.
【００２０】焼成 以上のようにして調製した造粒物および無機粉砕粒を用
いて多孔質セラミック板を焼成した。 Firing The porous ceramic plate was fired using the granules and the inorganic pulverized particles prepared as described above.
【００２１】焼成炉は搬送用に耐熱メッシュベルトを架
設した全長３９ｍのトンネルキルンを用いた。巾１ｍの
メッシュベルト上に離型材としてアルミナを塗布し、そ
の上にベース層用造粒物を１０．５ｍｍの厚さとなるよ
うに均一にチャージし、その上に無機粉砕粒を２ｍｍの
厚さとなるように均一に積層し、さらにその上に化粧層
用造粒物を厚さ５ｍｍとなるように積層した。えられた
積層体を予熱帯に搬送し、その後順に焼成帯、急冷帯、
徐冷帯、冷却帯と通過させて炉出口より搬出した。As the firing furnace, a tunnel kiln with a total length of 39 m, on which a heat-resistant mesh belt was provided for transportation, was used. Alumina is applied as a mold release material on a mesh belt having a width of 1 m, and a granulated material for a base layer is uniformly charged thereon so as to have a thickness of 10.5 mm. Then, the granulated material for a decorative layer was further laminated thereon so as to have a thickness of 5 mm. The obtained laminate is transported to the pre-tropical zone, and then fired, quenched,
After passing through the slow cooling zone and the cooling zone, it was carried out from the furnace outlet.
【００２２】なお、焼成温度は、９００℃であった。メ
ッシュベルトの移動速度は２５ｃｍ／分であり、炉に入
れて炉から出るまでの所要時間は約１６０分であった。The firing temperature was 900 ° C. The moving speed of the mesh belt was 25 cm / min, and the time required to enter and exit the furnace was about 160 minutes.
【００２３】えられた多孔質セラミック板を目視にて観
察したところ、化粧層表面のぶくや化粧層とベース層の
界面における泡がみはまったく認められなかった。When the obtained porous ceramic plate was visually observed, no bumps on the surface of the decorative layer and no bubbles at the interface between the decorative layer and the base layer were observed.
【００２４】比較例 無機粉砕粒からなるブロック層を設けなかった以外は実
施例と同様にして多孔質やセラミック板を製造した。え
られた多孔質セラミック板を目視にて観察したところ、
多数のぶくや泡がみの発生が認められた。Comparative Example A porous or ceramic plate was produced in the same manner as in Example except that the block layer made of the inorganic pulverized particles was not provided. When the obtained porous ceramic plate was visually observed,
Many bubbles and bubbles were observed.
【００２５】[0025]
【発明の効果】以上説明したとおり、本発明の多孔質セ
ラミック板においては、ベース層と表面化粧層のあいだ
に含水率の非常に小さな無機粉砕粒からなる層を設けて
いるので、化粧粒からベース粒への水分の移行を確実に
防ぐことができる。このため、ベース粒中の融剤かつ発
泡剤である成分の化粧粒側への移行が防止され、この移
行に起因していたぶくや泡がみが発生せず、外観が向上
されるとともに製品厚さの安定した多孔質セラミック板
をうることができる。また、無機粉砕粒の原料として廃
材を用いるときは、資源のリサイクルおよびコストダウ
ンを図ることができる。As described above, in the porous ceramic plate of the present invention, since the layer composed of the inorganic pulverized particles having a very small water content is provided between the base layer and the surface decorative layer, the porous ceramic plate is not used. Transfer of moisture to the base grains can be reliably prevented. For this reason, the flux and the foaming agent component in the base particles are prevented from migrating to the cosmetic particle side, so that dust and bubbles are not generated due to this migration, the appearance is improved, and the product is improved. A porous ceramic plate having a stable thickness can be obtained. When waste materials are used as raw materials for inorganic pulverized particles, resources can be recycled and costs can be reduced.
【図１】本発明の多孔質セラミック板の製法の原料チャ
ージ段階における断面説明図である。FIG. 1 is an explanatory cross-sectional view in a raw material charging stage of a method for manufacturing a porous ceramic plate of the present invention.
【図２】従来の多孔質セラミック板の断面説明図であ
る。FIG. 2 is an explanatory sectional view of a conventional porous ceramic plate.
１ ベース層 ２ 表面化粧層 ３ ブロック層 Reference Signs List 1 base layer 2 surface decorative layer 3 block layer
Claims (2)
表面化粧層を形成し、えられた積層体を加熱して溶化一
体化させる多孔質セラミック板の製法であって、前記ベ
ース層と表面化粧層のあいだに、無機粉砕粒からなるブ
ロック層を設けることを特徴とする多孔質セラミック板
の製法。1. A method for producing a porous ceramic plate, comprising: forming a surface decorative layer on a base layer made of an inorganic foamed granulated material; and heating and melting and integrating the obtained laminate. A method for producing a porous ceramic plate, comprising providing a block layer made of pulverized inorganic particles between the surface decorative layer and the surface decorative layer.
粉砕したものである請求項１記載の多孔質セラミック板
の製法。2. The method for producing a porous ceramic plate according to claim 1, wherein the inorganic pulverized particles are obtained by pulverizing a porous ceramic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17090792A JP2648071B2 (en) | 1992-06-29 | 1992-06-29 | Manufacturing method of porous ceramic plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17090792A JP2648071B2 (en) | 1992-06-29 | 1992-06-29 | Manufacturing method of porous ceramic plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0616483A JPH0616483A (en) | 1994-01-25 |
| JP2648071B2 true JP2648071B2 (en) | 1997-08-27 |
Family
ID=15913552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17090792A Expired - Lifetime JP2648071B2 (en) | 1992-06-29 | 1992-06-29 | Manufacturing method of porous ceramic plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2648071B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114085095B (en) * | 2021-11-25 | 2023-11-21 | 上海宝田新型建材有限公司 | Light ceramic self-heat-insulating wallboard and preparation method and application thereof |
-
1992
- 1992-06-29 JP JP17090792A patent/JP2648071B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0616483A (en) | 1994-01-25 |
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