JP4113368B2

JP4113368B2 - Manufacturing method of ceramic building boards

Info

Publication number: JP4113368B2
Application number: JP2002084695A
Authority: JP
Inventors: 浩之城本
Original assignee: Kubota Matsushitadenko Exterior Works Ltd
Current assignee: KMEW Co Ltd
Priority date: 2002-03-26
Filing date: 2002-03-26
Publication date: 2008-07-09
Anticipated expiration: 2022-03-26
Also published as: JP2003276018A

Description

【０００１】
【発明の属する技術分野】
本発明は、外装材、内壁材、平板屋根材等の建築板として用いられる窯業系建築板の製造方法に関するものである。
【０００２】
【従来の技術】
丸網式や長網式の抄造法によりセメント板等の窯業系建築生板の表面を平盤プレスで模様付けを行った後、この窯業系建築生板をパレット上に積載し、オートクレーブ養生して窯業系建築生板を硬化させて窯業系建築板を成形する窯業系建築板の製造方法が一般的に行われていた。このとき、平板状の窯業系建築板を積載した状態でオートクレーブ養生を行うために湿潤状態の窯業系建築生板の中央部と側端部とでは圧力をかけても窯業系建築生板の表面に結露水が発生し、この結露水が窯業系建築生板の側端部でせき止められ、中央部まで蒸気が通らず温度が上昇しにくくなり硬化後の窯業系建築板の中央部と側端部とで強度差が生じやすいという問題があった。
【０００３】
そこで、この中央部と側端部においての強度差が生じないように、オートクレーブ養生時に窯業系建築生板の表面の結露水を流しやすくするために、昇圧時に昇圧・降圧を繰り返し（スイング）て蒸気を発生して結露水を蒸発させるようにしていた。
【０００４】
しかしながら、このスイング操作は、圧力コントロールが必要なため設備が複雑となり、作業が非効率であり、無駄な蒸気、電力等のエネルギー消費をしやすいという問題があった。
【０００５】
【発明が解決しようとする課題】
本発明は上記問題点の解決を目的とするものであり、平盤プレスで模様付けする際に、窯業系建築生板の側端部に排水溝を形成して、オートクレーブ養生時に発生する結露水を除去し、スイング時の蒸気、電力等のエネルギー消費を削減し、効率的かつ強度ムラのない窯業系建築板の製造方法を提供するものである。
【０００６】
【課題を解決するための手段】
本発明の請求項１記載の窯業系建築板の製造方法は、抄造法により窯業系建築生板を成形し、該窯業系建築生板表面にプレスで模様付けして、該窯業系建築生板をパレット上に積載し、オートクレーブ養生して窯業系建築生板を硬化させて窯業系建築板を成形する窯業系建築板の製造方法において、窯業系建築生板表面にプレスする際に、窯業系建築生板表面の四周に溝部を形成し、該溝部に連設する排水溝をトリミング部に形成することを特徴とするものである。
【０００７】
したがって、平盤プレスで模様付けする際に、窯業系建築生板の側端部に排水溝を形成して、オートクレーブ養生時に発生する結露水を除去し、スイング時の蒸気、電力等のエネルギー消費を削減し、効率的かつ強度ムラのない窯業系建築板を製造することが可能となる。
【０００８】
本発明の請求項２記載の窯業系建築板の製造方法は、請求項１記載の窯業系建築生板表面の四周に溝部に連設する排水溝を少なくとも一辺に複数個形成することを特徴とするものである。
【０００９】
したがって、オートクレーブ養生時に発生する結露水を排水溝から簡単に外部に排水することができる。
【００１０】
本発明の請求項３記載の窯業系建築板の製造方法は、請求項１又は請求項２記載の窯業系建築生板のトリミング部の四周の溝部に連設する排水溝が、養生硬化後に切断されて、窯業系建築板とすることを特徴とするものである。
【００１１】
したがって、窯業系建築生板のトリミング部に排水溝を形成しているので、オートクレーブ養生時の結露水の排水が可能となる。又、硬化後にこのトリミング部が切断して除去されるので、通常の凹凸模様を形成した窯業系建築板が形成される。
【００１２】
本発明の請求項４記載の窯業系建築板の製造方法は、請求項１乃至請求項３のいずれか１項に記載のパレット上に積載された排水溝付きの窯業系建築生板がパレットの下部を傾斜することで排水するようにすることを特徴とするものである。
【００１３】
したがって、傾斜したパレット上に窯業系建築生板が積載されても、オートクレーブ養生時に結露水が確実に排水され、効率的である。
【００１４】
本発明の請求項５記載の窯業系建築板の製造方法は、請求項１乃至請求項４のいずれか１項に記載の窯業系建築板がセメント板、パルプ混入セメント板、木片セメント板、珪酸カルシウム板、陶器板であることを特徴とするものである。
【００１５】
したがって、強度バラツキの少ない窯業系建築板を製造することが可能となる。
【００１６】
【発明の実施の形態】
図１乃至図６に示したように、本発明の実施形態に係わる窯業系建築板の製造方法について説明する。
【００１７】
長網式や丸網式の抄造法により窯業系建築生板１を成形し、この窯業系建築生板１の表面２に平盤等のプレスで幾何学模様や線状模様等の凹凸模様３を模様付けして、この窯業系建築生板１をパレット４の上に複数枚積載し、オートクレーブ装置でオートクレーブ養生して窯業系建築生板１を硬化させて窯業系建築板Ａを成形する窯業系建築板Ａの製造方法である。
【００１８】
この窯業系建築板Ａの材質は、セメント板、パルプ混入セメント板、木片セメント板、珪酸カルシウム板、陶器板等でパレット４の上に複数枚積載してオートクレーブ養生の必要な材料に適切である。
【００１９】
図１乃至図５に示したように、この窯業系建築生板１の表面２にプレスする際に、窯業系建築生板１の表面２の四周に凹凸模様３と同時に溝部５を形成し、この溝部５に連設するように少なくとも一辺に複数個形成した排水溝６をトリミング部７に形成するものである。尚、この排水溝６は、この排水溝６は、窯業系建築生板１の表面２の四周に溝部５に連接して、オートクレーブ養生時に結露水が外方に流れ出るようにすれば良いものである。
【００２０】
そして、窯業系建築生板１に形成される排水溝６は、トリミング部７に相当する部分に形成されているので、オートクレーブ養生後の硬化後に切断され、実際に現場施工される窯業系建築板Ａが形成される。
【００２１】
さらに、この窯業系建築生板１は、パレットの下部を傾斜するようにしてオートクレーブ養生を行っているので、結露水がより確実に排水するようになる。
【００２２】
又、この窯業系建築生板１に形成される排水溝６は、図１に示したように、長手方向の一辺にのみ（４ヶ所）設けてもよく、図８に示したように、二辺に相対向して設けても良い。もちろん、窯業系建築生板１の表面２の四周に溝部５に連接するようにしても良い。要するに、排水溝６は、窯業系建築生板１の表面２の四周に溝部５に連接して排水可能なように設ければ良い。又、排水溝６の断面形状は、凹溝状、Ｖ溝状、丸溝状に形成しても良い。
【００２３】
尚、図６及び図７のように、窯業系建築生板１の長手方向の一辺にのみ複数個（実際は６ケ所）の排水溝６を設けてもよく、この排水溝６が凹凸模様３の模様となる目地溝と同様な形状で同時に溝部５を形成しても良い。例えば、排水溝６の溝形状は、図６のように、厚さ１２ｍｍで深さＨが３ｍｍ、幅Ｗが５ｍｍに形成したものである。
【００２４】
図９に示した窯業系建築生板１を複数枚積載するパレット４は、パレット４の下部を傾斜するように楔やジャッキ機構により、傾けるようにしている。その後、オートクレーブ装置でオートクレーブ養生して昇圧時に昇圧・降圧を繰り返し（スイング）て蒸気を発生して結露水を蒸発させるようにしている。このとき、窯業系建築生板１の排水溝６から結露水が外部に排出され、結露水が窯業系建築生板１の側端部でせき止められることもなく、中央部まで蒸気が通り温度が上昇しやすくなり、均一に養生がなされ硬化後の窯業系建築板Ａの中央部と側端部での強度差が生じにくいものである。
【００２５】
以下、本発明の一実施例に係わる窯業系建築板の製造方法を説明する。
【００２６】
セメント：４０重量％、フライアッシュ：４０重量％、けい石粉：１５重量％、パルプ３．５重量％、その他の有機物：１．５重量％を水とともに混練して長網式抄造機で厚さ１２ｍｍ、幅１０００ｍｍ、長さ３０００ｍｍの窯業系建築生板１を成形した。その後、この窯業系建築生板１の表面２に平盤プレスで凹溝５を有する凹凸模様３を模様付けした。このとき、窯業系建築生板１の表面２に凹凸模様３と同時に溝部５を形成し、この溝部５に連設するように長手方向の一辺にオートクレーブ養生後の硬化後に切断されるトリミング部７に対応する位置に排水溝６を複数個形成した。しかる後、この排水溝６が形成された窯業系建築生板１を傾斜角７度に傾斜したパレット４の上に窯業系建築生板１を７０段積載した。その後、オートクレーブ装置でオートクレーブ養生して昇圧時に昇圧・降圧を繰り返し（スイング）て蒸気を発生して結露水を蒸発させた。このとき、窯業系建築生板１の排水溝６から圧力とともに結露水が外部に排出され、結露水が窯業系建築生板１の側端部でせき止められこともなく、中央部まで蒸気が通り温度が上昇しやすくなった。このようして、オートクレーブ養生して硬化させた後で、側端部のトリミング部７を回転鋸刃で切断して所望の窯業系建築板Ａを製造するものである。
【００２７】
このとき、窯業系建築生板１の排水溝６の間隔を下表１のような水準で作製し、オートクレーブ養生を行い、基材昇温に必要なスイング条件を比較した。この排水溝６の形状は、図６の溝形状で行い、配合組成は、上述したセメント組成で行い、窯業系建築生板１の寸法は、厚さ１２ｍｍ、幅１０００ｍｍ、長さ３０００ｍｍで行った。又、排水溝６は溝部５連接させて同一形状のものを使用した。そのために、実施例１として排水溝６を窯業系建築生板１の表面２の側端部の片側に１００ｍｍ間隔で３０ヶ所設け、実施例２として排水溝６を窯業系建築生板１の表面２の側端部の片側に２００ｍｍ間隔で１５ヶ所設け、比較例として、排水溝６なしでスイングを行った。
【００２８】
図１０は、比較例として、従来行われていたオートクレーブ養生時に窯業系建築生板１の表面２の側端部に排水溝６なしでスイングを行った場合には、圧力１回目（０.２Ｍｐａ）及び圧力２回目（０.３Ｍｐａ）の２回昇圧・降圧を繰り返し（スイング）て蒸気を発生して結露水を蒸発させるようにして、結露水を排出していた。
【００２９】
そのために、窯業系建築生板の表面の結露水を流しやすくするために、スイング操作は、圧力コントロールが必要なため設備が複雑となり、作業が非効率であり、無駄な蒸気、電力等のエネルギー消費をしやすいものであった。
【００３０】
これに対して、実施例１では、圧力１回目（０.２Ｍｐａ）でのスイングは比較例とほぼ同等であるが、圧力２回目（０.３Ｍｐａ）のスイングは比較例と比べると降圧時間が少なくて済むことがわかる。すなわち、比較例より蒸気、電力等のエネルギー消費が少なくて済むものである。
【００３１】
さらに、実施例２の圧力１回目（０.２Ｍｐａ）でのスイングは、比較例や実施例１より蒸気、電力等のエネルギー消費が少なくて済むものでより効率的である。
【００３２】
したがって、窯業系建築生板１の表面２に排水溝６をより間隔を狭くして複数個形成することによりスイング回数を減少することが可能となる。そして、圧力コントロールが必要なため設備が簡単操作で作業が効率的となり、無駄な蒸気、電力等のエネルギー消費を抑制することとができ経済的である。
【００３３】
この結果のまとめは、下表１に示す。
【表１】

【００３４】
上表１に示したように、窯業系建築生板１（ワーク）の表面２に排水溝６を設けたものは、スイング回数を少なくでき養生効率が実施例１では２０％、実施例２では４０％削減できた。
【００３５】
【発明の効果】
上述の如く、本発明の請求項１記載の窯業系建築板の製造方法は、抄造法により窯業系建築生板を成形し、この窯業系建築生板表面にプレスで模様付けして、この窯業系建築生板をパレット上に積載し、オートクレーブ養生して窯業系建築生板を硬化させて窯業系建築板を成形する窯業系建築板の製造方法において、窯業系建築生板表面にプレスする際に、窯業系建築生板表面の四周に溝部を形成し、この溝部に連設する排水溝をトリミング部に形成しているので、平盤プレスで模様付けする際に、窯業系建築生板の側端部に排水溝を形成して、オートクレーブ養生時に発生する結露水を除去し、スイング時の蒸気、電力等のエネルギー消費を削減し、効率的かつ強度ムラのない窯業系建築板を製造することが可能となる。
【００３６】
本発明の請求項２記載の窯業系建築板の製造方法は、窯業系建築生板表面の四周に溝部に連設する排水溝を少なくとも一辺に複数個形成しているので、オートクレーブ養生時に発生する結露水を排水溝から簡単に外部に排水することができる。
【００３７】
本発明の請求項３記載の窯業系建築板の製造方法は、窯業系建築生板のトリミング部の四周の溝部に連設する排水溝が、養生硬化後に切断されて、窯業系建築板とするので、硬化後にこのトリミング部が切断して除去されるので、通常の凹凸模様を形成した窯業系建築板が形成される。
【００３８】
本発明の請求項４記載の窯業系建築板の製造方法は、パレット上に積載された排水溝付きの窯業系建築生板がパレットの下部を傾斜することで排水するようしているので、傾斜したパレット上に窯業系建築生板が積載されても、オートクレーブ養生時に結露水が確実に排水され、効率的である。
【００３９】
本発明の請求項５記載の窯業系建築板の製造方法は、窯業系建築板がセメント板、パルプ混入セメント板、木片セメント板、珪酸カルシウム板、陶器板であっても、強度バラツキの少ない窯業系建築板を製造することが可能となる。
【図面の簡単な説明】
【図１】本発明の窯業系建築生板の上方から見た斜視図である。
【図２】本発明の図１のＸ−Ｘ断面図である。
【図３】本発明の図１のＹ−Ｙ断面図である。
【図４】本発明の図１の拡大したＺ−Ｚ断面図である。
【図５】本発明の図１の要部の拡大した斜視図である。
【図６】本発明の実施例に係る排水溝の要部の断面図である。
【図７】本発明の一実施例に係る窯業系建築生板の平面図である。
【図８】本発明の異なる実施例に係る窯業系建築生板の平面図である。
【図９】本発明の傾斜するパレット上に積載された窯業系建築生板の正面図である。
【図１０】本発明の排水溝なしでスイングを行った場合の圧力と養生時間の関係を示すグラフである。
【図１１】本発明の実施例１に係る条件でスイングを行った場合の圧力と養生時間の関係を示すグラフである。
【図１２】本発明の実施例２に係る条件でスイングを行った場合の圧力と養生時間の関係を示すグラフである。
【符号の説明】
Ａ窯業系建築板
１窯業系建築生板
２表面
３凹凸模様
４パレット
５溝部
６排水溝
７トリミング部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a ceramic building board used as a building board such as an exterior material, an inner wall material, and a flat roof material.
[0002]
[Prior art]
After patterning the surface of the ceramic building raw board such as cement board with a flat plate press using the round net type or long net type papermaking method, this ceramic building raw board is loaded on a pallet and autoclaved. In general, a method for manufacturing a ceramic building board in which a ceramic building board is cured to form a ceramic building board is generally performed. At this time, in order to perform autoclave curing with a plate-shaped ceramic building board loaded, the surface of the ceramic building board even when pressure is applied at the center and side edges of the wet ceramic building board Condensed water is generated, and the condensed water is dammed up at the side edge of the ceramic building board, and steam does not pass to the center, making it difficult for the temperature to rise. There was a problem that a difference in strength was likely to occur between the portions.
[0003]
Therefore, in order to make it easier for the condensed water on the surface of the ceramic building board to flow during autoclave curing, pressurization and depressurization are repeated (swing) during pressurization so that there is no difference in strength between the center and side edges. Steam was generated to evaporate the condensed water.
[0004]
However, this swing operation requires pressure control, so that the facilities are complicated, the work is inefficient, and there is a problem that energy such as wasteful steam and electric power is easily consumed.
[0005]
[Problems to be solved by the invention]
The present invention is intended to solve the above-mentioned problems, and when patterning with a flat plate press, a drainage groove is formed in the side edge of the ceramic building raw board, and dew condensation water generated during autoclave curing. The present invention provides a method for producing a ceramic building board that is efficient and has no unevenness in strength, reducing energy consumption such as steam and electric power during swinging.
[0006]
[Means for Solving the Problems]
The method for producing a ceramic building board according to claim 1 of the present invention comprises forming a ceramic building raw board by a papermaking method, patterning the surface of the ceramic building raw board with a press, and In the method of manufacturing ceramic building boards, the ceramic building board is molded by autoclaving and curing the ceramic building boards and molding the ceramic building boards. A groove part is formed in the four circumferences of the surface of a building raw board, and the drainage groove connected to this groove part is formed in a trimming part.
[0007]
Therefore, when patterning with a flat plate press, drainage grooves are formed in the side edges of the ceramic building raw board to remove condensed water generated during autoclave curing, and energy consumption such as steam and electric power during swinging This makes it possible to manufacture ceramic building boards that are efficient and have no unevenness in strength.
[0008]
The method for producing a ceramic building board according to claim 2 of the present invention is characterized in that a plurality of drainage grooves connected to the groove portion are formed on at least one side on the four sides of the surface of the ceramic building raw board according to claim 1. To do.
[0009]
Therefore, the dew condensation water generated during the autoclave curing can be easily drained to the outside from the drainage groove.
[0010]
The method for manufacturing a ceramic building board according to claim 3 of the present invention is such that the drainage grooves provided continuously to the four circumferential grooves of the trimming part of the ceramic building raw board according to

claim

1 or 2 are cut after curing. It is characterized by being a ceramic building board.
[0011]
Therefore, since the drainage groove is formed in the trimming part of the ceramic building raw board, the dewed water can be drained during the autoclave curing. Moreover, since this trimming part is cut off and removed after curing, a ceramic building board having a normal concavo-convex pattern is formed.
[0012]
According to a fourth aspect of the present invention, there is provided a ceramic building board manufacturing method according to any one of the first to third aspects, wherein the ceramic building raw board with drainage grooves loaded on the pallet is a pallet. It is characterized by draining by inclining the lower part.
[0013]
Therefore, even if a ceramic building board is loaded on an inclined pallet, the dew condensation water is surely drained during the autoclave curing, which is efficient.
[0014]
The method for producing a ceramic building board according to claim 5 of the present invention is the ceramic building board according to any one of claims 1 to 4, wherein the ceramic building board is cement board, pulp-mixed cement board, wood chip cement board, silicic acid It is characterized by being a calcium plate or a ceramic plate.
[0015]
Therefore, it is possible to manufacture a ceramic building board with less variation in strength.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1 thru | or FIG. 6, the manufacturing method of the ceramic industry building board concerning embodiment of this invention is demonstrated.
[0017]
A ceramic building raw board 1 is formed by a long net type or a round net type papermaking method, and an uneven pattern 3 such as a geometric pattern or a linear pattern is formed on the surface 2 of the ceramic building raw board 1 with a press such as a flat plate. A ceramic industry in which a plurality of ceramic building boards 1 are stacked on a pallet 4 and cured by an autoclave to cure the ceramic building boards 1 to form a ceramic building board A. It is a manufacturing method of the system building board A.
[0018]
The ceramic building board A is suitable for materials that need to be cured by loading a plurality of pieces onto the pallet 4 with cement boards, pulp-mixed cement boards, wood chip cement boards, calcium silicate boards, ceramic boards, etc. .
[0019]
As shown in FIGS. 1 to 5, when pressing on the surface 2 of the ceramic building raw board 1, grooves 5 are formed at the same time as the concavo-convex pattern 3 on the four circumferences of the surface 2 of the ceramic building raw board 1, A plurality of drain grooves 6 formed on at least one side so as to be connected to the groove 5 are formed in the trimming portion 7. In addition, this drainage groove | channel 6 should just connect this groove | channel 6 to the groove part 5 on the four circumferences of the surface 2 of the ceramic building raw board 1 so that the dew condensation water flows outward during the autoclave curing. is there.
[0020]
And since the drainage groove 6 formed in the ceramic industry building board 1 is formed in the part corresponding to the trimming part 7, the ceramic industry building board cut | disconnected after hardening after an autoclave curing | hardening and actually constructed on-site. A is formed.
[0021]
Furthermore, since this ceramic building raw board 1 is performing autoclave curing by inclining the lower part of the pallet, the dew condensation water is drained more reliably.
[0022]
Further, as shown in FIG. 1, the drainage grooves 6 formed in the ceramic building raw board 1 may be provided only on one side in the longitudinal direction (four places). As shown in FIG. It may be provided opposite to the side. Of course, you may make it connect with the groove part 5 in the four circumferences of the surface 2 of the ceramic building raw board 1. FIG. In short, the drainage grooves 6 may be provided on the four circumferences of the surface 2 of the ceramic building raw board 1 so as to be connected to the groove portions 5 so as to be drainable. Further, the cross-sectional shape of the drainage groove 6 may be formed in a concave groove shape, a V groove shape, or a round groove shape.
[0023]
As shown in FIGS. 6 and 7, a plurality of (in reality, six locations) drainage grooves 6 may be provided only on one side in the longitudinal direction of the ceramic building raw board 1. You may form the groove part 5 simultaneously with the shape similar to the joint groove used as a pattern. For example, as shown in FIG. 6, the groove shape of the drainage groove 6 is 12 mm in thickness, 3 mm in depth H, and 5 mm in width W.
[0024]
The pallet 4 on which a plurality of ceramic building architectural raw plates 1 shown in FIG. 9 are stacked is inclined by a wedge or a jack mechanism so that the lower part of the pallet 4 is inclined. After that, the autoclave is cured by an autoclave device, and the pressure is increased and decreased at the time of pressure increase (swing) to generate steam to evaporate the condensed water. At this time, the dew condensation water is discharged to the outside from the drainage groove 6 of the ceramic building raw board 1, and the condensed water is not blocked at the side end portion of the ceramic building raw board 1, and the steam passes to the center and the temperature is increased. It becomes easy to rise, is cured uniformly, and does not easily cause a difference in strength between the central portion and the side end portion of the ceramic building board A after curing.
[0025]
Hereinafter, the manufacturing method of the ceramic building board concerning one Example of this invention is demonstrated.
[0026]
Cement: 40% by weight, fly ash: 40% by weight, quartzite powder: 15% by weight, pulp 3.5% by weight, other organic matter: 1.5% by weight with water and kneaded with a long net paper machine A ceramic building raw board 1 having a width of 12 mm, a width of 1000 mm, and a length of 3000 mm was formed. Then, the uneven | corrugated pattern 3 which has the ditch | groove 5 was patterned on the surface 2 of this ceramic industry building raw board 1 with the flat plate press. At this time, a groove portion 5 is formed simultaneously with the concave and convex pattern 3 on the surface 2 of the ceramic building raw board 1, and a trimming portion 7 cut after curing after autoclave curing on one side in the longitudinal direction so as to be connected to the groove portion 5. A plurality of drainage grooves 6 were formed at positions corresponding to. Thereafter, 70 stages of the ceramic building raw board 1 were loaded on the pallet 4 inclined at an inclination angle of 7 degrees. Thereafter, the autoclave was cured with an autoclave device, and the pressure was increased and decreased during the pressure increase (swing) to generate steam to evaporate the condensed water. At this time, condensed water is discharged from the drainage groove 6 of the ceramic building raw board 1 together with pressure, and the condensed water is not blocked at the side end of the ceramic building raw board 1 and steam passes to the center. The temperature is likely to rise. Thus, after curing and curing the autoclave, the desired ceramics building board A is manufactured by cutting the trimming portion 7 at the side end with a rotary saw blade.
[0027]
At this time, the interval between the drainage grooves 6 of the ceramic building raw board 1 was prepared at a level as shown in Table 1 below, followed by autoclave curing, and the swing conditions necessary for substrate temperature increase were compared. The shape of the drainage groove 6 is the groove shape of FIG. 6, the blending composition is the cement composition described above, and the dimensions of the ceramic building raw board 1 are 12 mm thick, 1000 mm wide, and 3000 mm long. . Moreover, the drainage groove | channel 6 used the groove part 5 connected and the same shape. Therefore, as Example 1, 30 drainage grooves 6 are provided at 100 mm intervals on one side of the side 2 of the surface 2 of the ceramic building raw board 1, and as Example 2, the drainage grooves 6 are provided on the surface of the ceramic building raw board 1. 15 places were provided at intervals of 200 mm on one side of the side end portion of No. 2, and as a comparative example, a swing was performed without the drainage groove 6.
[0028]
As a comparative example, FIG. 10 shows, as a comparative example, when a swing is performed on the side edge of the surface 2 of the ceramic building raw board 1 without the drainage groove 6 during the conventional autoclave curing, the first pressure (0.2 Mpa). ) And the second pressure (0.3 Mpa) of pressure increase and decrease are repeated (swing) to generate steam and evaporate the condensed water, thereby discharging the condensed water.
[0029]
Therefore, in order to facilitate the flow of condensed water on the surface of ceramic building boards, the swing operation requires pressure control, which complicates equipment, making the work inefficient, and wasteful energy such as steam and electric power. It was easy to consume.
[0030]
On the other hand, in Example 1, the swing at the first pressure (0.2 Mpa) is almost the same as that of the comparative example, but the second pressure (0.3 Mpa) of the swing is lower than that of the comparative example. You can see that less is needed. That is, less energy consumption such as steam and electric power is required than in the comparative example.
[0031]
Furthermore, the swing at the first pressure (0.2 MPa) in Example 2 is more efficient because it requires less energy consumption such as steam and electric power than the comparative example and Example 1.
[0032]
Therefore, it becomes possible to reduce the number of swings by forming a plurality of drain grooves 6 on the surface 2 of the ceramic building raw board 1 with a narrower interval. And since pressure control is required, the operation is simple and the operation is efficient, and energy consumption such as wasteful steam and electric power can be suppressed, which is economical.
[0033]
A summary of the results is shown in Table 1 below.
[Table 1]

[0034]
As shown in Table 1 above, the surface 2 of the ceramic building raw board 1 (work) provided with the drainage groove 6 can reduce the number of swings, and the curing efficiency is 20% in Example 1, and in Example 2. Reduced by 40%.
[0035]
【The invention's effect】
As described above, the method for manufacturing a ceramic building board according to claim 1 of the present invention is a method of forming a ceramic building raw board by a papermaking method, and patterning the surface of the ceramic building raw board with a press. When a ceramic building board is pressed on the surface of a ceramic building board in a manufacturing method of a ceramic building board in which a ceramic building board is loaded on a pallet, cured by an autoclave, and the ceramic building board is cured to form a ceramic building board In addition, a groove is formed on the four sides of the surface of the ceramic building raw board, and a drainage groove connected to this groove is formed in the trimming part, so when patterning with a flat plate press, Forming drainage grooves at the side edges to remove condensed water generated during curing in an autoclave, reducing energy consumption such as steam and electric power during swing, and manufacturing ceramic building boards that are efficient and have no unevenness in strength It becomes possible.
[0036]
In the method for manufacturing a ceramic building board according to claim 2 of the present invention, a plurality of drainage grooves are formed on at least one side of the ceramic building raw board surface so as to be continuous with the groove portion. Condensed water can be easily drained out of the drain.
[0037]
In the method for manufacturing a ceramic building board according to claim 3 of the present invention, the drainage grooves connected to the four circumferential grooves of the trimming part of the ceramic building raw board are cut after curing and cured to obtain a ceramic building board. Therefore, since this trimming part is cut off and removed after curing, a ceramic building board having an ordinary concavo-convex pattern is formed.
[0038]
In the method for manufacturing a ceramic building board according to claim 4 of the present invention, the ceramic building raw board with drainage grooves loaded on the pallet is drained by inclining the lower part of the pallet. Even if a ceramic building board is loaded on the pallet, the condensed water is surely drained during the autoclave curing, which is efficient.
[0039]
The method for producing a ceramic building board according to claim 5 of the present invention is the ceramic industry with little strength variation even when the ceramic building board is a cement board, a pulp mixed cement board, a wood chip cement board, a calcium silicate board, or a ceramic board. It is possible to manufacture a building board.
[Brief description of the drawings]
FIG. 1 is a perspective view of a ceramic building board according to the present invention as viewed from above.
FIG. 2 is a cross-sectional view taken along the line XX of FIG. 1 of the present invention.
3 is a cross-sectional view taken along the line YY of FIG. 1 according to the present invention.
FIG. 4 is an enlarged ZZ cross-sectional view of FIG. 1 of the present invention.
FIG. 5 is an enlarged perspective view of a main part of FIG. 1 of the present invention.
FIG. 6 is a cross-sectional view of a main part of a drain groove according to an embodiment of the present invention.
FIG. 7 is a plan view of a ceramic building board according to an embodiment of the present invention.
FIG. 8 is a plan view of a ceramic building board according to another embodiment of the present invention.
FIG. 9 is a front view of a ceramic building board placed on an inclined pallet according to the present invention.
FIG. 10 is a graph showing the relationship between pressure and curing time when swinging without a drain groove of the present invention.
FIG. 11 is a graph showing the relationship between pressure and curing time when swinging is performed under conditions according to Example 1 of the present invention.
FIG. 12 is a graph showing the relationship between pressure and curing time when swinging is performed under conditions according to Example 2 of the present invention.
[Explanation of symbols]
A Ceramic building board 1 Ceramic building board 2 Surface 3 Uneven pattern 4 Pallet 5 Groove part 6 Drain groove 7 Trimming part

Claims

A ceramic building raw board is formed by the paper making method, and the ceramic building raw board surface is patterned with a press, and the ceramic building raw board is loaded on a pallet and cured by autoclave. In the manufacturing method of ceramic building board, which is cured and molded into ceramic building board, when pressing on the ceramic building raw board surface, grooves are formed on the four sides of the ceramic building raw board surface and connected to the groove part. A method for manufacturing a ceramic building board, characterized in that a drainage groove is formed in a trimming part.

2. The method for producing a ceramic building board according to claim 1, wherein a plurality of drainage grooves are provided on at least one side of the surface of the ceramic building board.

The ceramic industry system according to claim 1 or 2, wherein drainage grooves connected to the four circumferential grooves of the trimming section of the ceramic industry building board are cut after curing and cured to form a ceramic industry board. Manufacturing method of building board.

The ceramic industry according to any one of claims 1 to 3, wherein a ceramic building board with drainage grooves loaded on the pallet is drained by inclining a lower part of the pallet. A manufacturing method of a building board.

The ceramic building board according to any one of claims 1 to 4, wherein the ceramic building board is a cement board, a pulp mixed cement board, a wood chip cement board, a calcium silicate board, a ceramic board, or the like. Manufacturing method.