JPH09141624A - Manufacture of hydraulic inorganic molded plate - Google Patents
Manufacture of hydraulic inorganic molded plateInfo
- Publication number
- JPH09141624A JPH09141624A JP30313895A JP30313895A JPH09141624A JP H09141624 A JPH09141624 A JP H09141624A JP 30313895 A JP30313895 A JP 30313895A JP 30313895 A JP30313895 A JP 30313895A JP H09141624 A JPH09141624 A JP H09141624A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- outer frame
- inorganic molded
- molded plate
- hydraulic 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.)
- Granted
Links
Landscapes
- Producing Shaped Articles From Materials (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、住宅用外壁材とし
て用いられる水硬性無機質成形板の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a hydraulic inorganic molded plate used as a housing outer wall material.
【０００２】[0002]
【従来の技術】表面に凹凸模様を有する水硬性無機質成
形板の製造方法は、一般に下型にスラリー状の水硬性原
料を供給し、下型から予備脱水した後、表面に凹凸模様
を有する上型で加圧脱水する方法が知られている。2. Description of the Related Art A method for producing a hydraulic inorganic molded plate having an uneven surface is generally a method in which a slurry hydraulic material is supplied to a lower mold and preliminarily dehydrated from the lower mold to obtain an uneven surface. A method of dehydrating under pressure with a mold is known.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記従
来の水硬性無機質成形板の製造方法では、上型の凹凸模
様が成形体に精度良く転写されず表面意匠性の点で不十
分であり、深絞り模様の場合は精度が特に悪くなるとい
う欠点がある。これに対して、本願出願人は、凹凸模様
を有する下型にスラリー状の水硬性原料を供給し、上型
から余剰水を自然及び又は強制的に除去しつつ予備プレ
スして予備成形体を形成し、次いで、予備成形体を本プ
レスして下型模様が転写された表面形状の水硬性無機質
成形板を製造する製造方法を提案している（特願平７−
３３９７２号）。However, in the above-mentioned conventional method for producing a hydraulic inorganic molded plate, the uneven pattern of the upper mold is not accurately transferred to the molded body, which is insufficient in terms of surface design, and In the case of a squeezing pattern, there is a drawback that the accuracy becomes particularly poor. On the other hand, the applicant of the present application supplies a slurry hydraulic material to a lower mold having an uneven pattern, and preliminarily presses a preliminary molded body while naturally and / or forcibly removing excess water from the upper mold. There is proposed a manufacturing method for forming a hydraulic inorganic molded plate having a surface shape to which a lower mold pattern is transferred by subjecting the preformed body to main pressing (Japanese Patent Application No. 7-
33972).
【０００４】しかし、前記製造方法では、表面意匠性を
向上させることができるが、水硬性原料の余剰水を除去
するのに長時間かかるので、生産性が低いという欠点が
ある。本発明はこのような事情に鑑みてなされたもの
で、意匠性に優れた水硬性無機質成形板を生産性良く製
造することができる水硬性無機質成形板の製造方法を提
供することを目的とする。However, although the above-mentioned manufacturing method can improve the surface design, it takes a long time to remove the surplus water of the hydraulic raw material, so that the productivity is low. The present invention has been made in view of such circumstances, and an object thereof is to provide a method for producing a hydraulic inorganic molded plate capable of producing a hydraulic inorganic molded plate excellent in designability with high productivity. .
【０００５】[0005]
【課題を解決する為の手段】本発明は、前記目的を達成
する為に、凹凸模様を有する下型にスラリー状の水硬性
原料を供給し、上型及び外枠の脱水孔から余剰水を除去
しつつ予備プレスして予備成形体を形成し、次いで、前
記予備成形体を本プレスして前記下型の凹凸模様が転写
された表面形状の水硬性無機質成形板を製造することを
特徴としている。In order to achieve the above-mentioned object, the present invention supplies a slurry hydraulic material to a lower mold having an uneven pattern and removes excess water from the dehydration holes of the upper mold and the outer frame. While preliminarily pressing while removing to form a preformed body, then the main body is pressed to produce a hydraulic inorganic molded plate having a surface shape to which the uneven pattern of the lower mold is transferred. There is.
【０００６】本発明において、下型にスラリー状の水硬
性原料を供給するにあたり、水硬性原料を固形分が１０
〜３０重量％になるように調整して使用するのが好まし
い。固形分の含有量が１０％未満であると脱水に長時間
必要になり、生産性が低下するので好ましくなく、３０
％超であると流動性が低下し下型の凹凸模様が精度良く
転写されないので好ましくない。In the present invention, when the slurry-shaped hydraulic raw material is supplied to the lower mold, the hydraulic raw material has a solid content of 10%.
It is preferable to adjust the amount to be about 30% by weight before use. If the solid content is less than 10%, dehydration will take a long time and productivity will be reduced, which is not preferable.
If it is more than%, the fluidity is lowered and the uneven pattern of the lower mold is not transferred accurately, which is not preferable.
【０００７】水硬性原料としては、特に限定されず、具
体的にはスラグ、石膏、セメント、消石灰等の水硬性原
料とパーライト等の軽量化材料とパルプ繊維、ウォラス
トナイト等の補強材料との混合物が例示される。かかる
スラリー状の水硬性原料は、表面に凹凸模様を有する下
型に供給された後、下型、外枠及び上型により予備プレ
スされ予備成形体に形成される。下型の凹凸模様は、無
機質成形板に転写されるものであり、目的とする模様が
使用される。なかでも、凹部と凸部との差が大きい深絞
りの模様のものが好ましい。The hydraulic raw material is not particularly limited, and specifically, a hydraulic raw material such as slag, gypsum, cement and slaked lime, a lightweight material such as perlite and a reinforcing material such as pulp fiber and wollastonite. A mixture is exemplified. The hydraulic raw material in the form of a slurry is supplied to a lower mold having an uneven pattern on its surface, and then prepressed by the lower mold, the outer frame and the upper mold to form a preformed body. The concavo-convex pattern of the lower mold is transferred to the inorganic molding plate, and the intended pattern is used. Above all, a deep drawing pattern having a large difference between the concave portion and the convex portion is preferable.
【０００８】下型の材質としては、金属も使用できる
が、繊維強化樹脂がコストの面で好ましい。前記上型
は、その表面（水硬性原料に当接する面）に開口する複
数の小孔を有し、各小孔は真空装置に連結されている。
予備プレスの加圧中に、水硬性原料中の余剰水はこの小
孔により自然及び又は強制的に除去される。強制的に除
去する場合は、真空装置内を−７００〜−１０００ｍｍ
Ｈｇに減圧することにより行う。As a material for the lower mold, a metal can be used, but a fiber reinforced resin is preferable in terms of cost. The upper mold has a plurality of small holes opened on its surface (a surface in contact with the hydraulic material), and each small hole is connected to a vacuum device.
During pressurization of the prepress, excess water in the hydraulic material is naturally and / or forcibly removed by these small holes. When forcibly removing, the inside of the vacuum device is -700 to -1000 mm.
It is performed by reducing the pressure to Hg.
【０００９】一方、予備プレスで用いる外枠は、周囲面
（水硬性原料に当接する面）に開口する小孔を有し、予
備プレス中に、水硬性原料中の余剰水はこの小孔からも
除去される。この小孔は、周囲面の下型に接する端から
５０ｍｍの範囲に位置し、径が０．５〜２．５ｍｍ、開
孔率３〜５０％であるのが好ましい。強制的に除去する
場合は、真空装置内を−７００〜−１０００ｍｍＨｇに
減圧することにより行う。On the other hand, the outer frame used in the preliminary press has small holes that open on the peripheral surface (the surface that comes into contact with the hydraulic raw material), and during the preliminary press, excess water in the hydraulic raw material comes from this small hole. Is also removed. The small holes are preferably located within a range of 50 mm from the edge of the peripheral surface in contact with the lower mold, and have a diameter of 0.5 to 2.5 mm and an opening ratio of 3 to 50%. In the case of forced removal, the pressure in the vacuum device is reduced to -700 to -1000 mmHg.
【００１０】また、前記予備成形体の縦断面を長方形形
状に形成すると、上型の退避時や予備成形体の搬送時に
型崩れが生じていたため、本発明では前記外枠の内周面
（水硬性原料に当接する面）に、前記上型に向けて先細
状のテーパ面を形成し、予備成形体の縦断面を台形形状
に形成した。これにより、予備成形体の型崩れを防止す
ることができる。Further, when the preform is formed in a rectangular cross section, the mold collapses when the upper die is retracted or when the preform is conveyed. Therefore, in the present invention, the inner peripheral surface of the outer frame (water A taper surface that tapers toward the upper mold was formed on the surface (contacting the hard material) to form a trapezoidal longitudinal section of the preform. This can prevent the preform from losing its shape.
【００１１】予備プレスの条件としては、常温〜５０°
Ｃの温度、１〜５ｋｇ重／ｃｍ2 の圧力及び３〜１２０
秒の押圧時間程度である。この時、予備プレスで用いる
外枠の周囲面（水硬性原料に当接する面）により水硬性
原料中の余剰水を自然及び又は強制的に除去することに
より、予備プレス中に発生する圧力を低減させることが
可能となり、また、予備プレス後の形状を維持すること
が可能な固形分に対する含水率領域が５０〜２００％程
度から５０〜２５０％程度に広がる。かくして予備プレ
スに要する時間を短縮させることが可能となり生産性が
良くなる。The condition of the preliminary press is room temperature to 50 °
C temperature, 1-5 kgf / cm 2 pressure and 3-120
It is about a pressing time of 2 seconds. At this time, the pressure generated during the preliminary pressing is reduced by naturally and / or forcibly removing excess water in the hydraulic material by the peripheral surface of the outer frame used for the preliminary pressing (the surface that contacts the hydraulic material). In addition, the water content region with respect to the solid content capable of maintaining the shape after the preliminary pressing is expanded from about 50 to 200% to about 50 to 250%. Thus, the time required for the preliminary pressing can be shortened and the productivity is improved.
【００１２】次いで、かかる予備成形体は本プレスさ
れ、水硬性無機質成形板に製造される。本プレスにおけ
る下型、上型は通常、予備プレスで使用したものが使用
される。本プレスの条件としては、常温〜５０°Ｃの温
度、１０〜１５０ｋｇ重／ｃｍ 2 の圧力及び１〜１２０
秒の時間程度である。この本プレスにおいても上型から
余剰水を自然及び又は強制的に除去することが好まし
い。Next, the preform is pressed into a main press.
And manufactured into a hydraulic inorganic molded plate. In this press
The lower and upper molds used are usually those used in the preliminary press.
Is done. The conditions of this press are room temperature to 50 ° C.
10 to 150 kg weight / cm TwoPressure and 1-120
It is about time in seconds. Also in this press, from the upper mold
Natural and / or forced removal of excess water is preferred
No.
【００１３】かくして製造された水硬性無機質成形板は
養生により完全に硬化される。この養生方法としては、
６０〜８０°Ｃの飽和蒸気圧下で６〜１０時間湿潤養生
し、更に１５０〜１８０°Ｃ、４〜１０気圧でオートク
レーブ養生することが生産性を高める上で望ましい。こ
の湿潤養生において、水硬性無機質成形板を下型が装着
された状態で反転した後、下型を外し、ついで、この水
硬性無機質成形板を互いに空間を有するようにトレイに
積み上げて養生することで、模様及び水硬性無機質成形
板の変形を防止できる。The hydraulic inorganic molded sheet thus produced is completely cured by curing. As this curing method,
In order to improve the productivity, it is desirable to carry out wet curing for 6 to 10 hours under a saturated vapor pressure of 60 to 80 ° C and further to autoclave at 150 to 180 ° C and 4 to 10 atm. In this wet curing, after inverting the hydraulic inorganic molded plate with the lower mold attached, remove the lower mold, and then stack and cure the hydraulic inorganic molded plates in a tray so that they have a space between them. Therefore, the pattern and the deformation of the hydraulic inorganic molded plate can be prevented.
【００１４】予備プレス、本プレスに使用するプレス装
置は、同一の装置を使用しても良いが、両装置を別々に
設けることが好ましい。その理由は、予備プレスは本プ
レスより発生する圧力が小さいので設備費が安い。しか
も、予備プレスは本プレスよりプレスに要する時間が一
般的に長いので、同一の装置で予備プレスと本プレスを
行うと製造コストが高くなるからである。本プレスの装
置１台に対し予備プレスの装置を複数台設けることがよ
り好ましい。As the press device used for the preliminary press and the main press, the same device may be used, but it is preferable to provide both devices separately. The reason is that the preliminary press generates less pressure than the main press, so the equipment cost is low. Moreover, since the time required for pressing the preliminary press is generally longer than that of the main press, the manufacturing cost increases if the preliminary press and the main press are performed by the same device. It is more preferable to provide a plurality of preliminary press devices for one main press device.
【００１５】（比較例）外枠として、その周囲面に小孔
を有しないものを使用した以外、実施例と同様の水硬性
原料を使用し、同様の方法で予備プレスした。この場
合、予備成形体２２の含水率が約１５０％になるまでの
押圧時間は６０秒間要した。Comparative Example A hydraulic raw material similar to that of the example was used, except that an outer frame having no small holes on its peripheral surface was used, and preliminary pressing was performed in the same manner. In this case, the pressing time required for the water content of the preform 22 to reach about 150% was 60 seconds.
【００１６】[0016]
【発明の実施の形態】以下添付図面に従って本発明に係
る水硬性無機質成形板の製造方法の好ましい実施の形態
について詳説する。図１は、本発明の実施の形態に係る
水硬性無機質成形板の製造方法を示す工程図である。先
ず、プレート１０上に、凹凸模様を有する下型１２を固
定したのち、この下型に外枠１４を固定して、下型１２
と外枠１４とで形成される容器内に水硬性原料１６を供
給する。そして、予備プレス装置１８の上型２０によっ
て前記水硬性原料１６を予備プレスして、予備成形体２
２を形成する。BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the method for producing a hydraulic inorganic molded plate according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a process drawing showing a method for manufacturing a hydraulic inorganic molded plate according to an embodiment of the present invention. First, the lower die 12 having an uneven pattern is fixed on the plate 10, and then the outer frame 14 is fixed to the lower die to make the lower die 12
A hydraulic material 16 is supplied into a container formed by the outer frame 14 and the outer frame 14. Then, the hydraulic raw material 16 is pre-pressed by the upper mold 20 of the pre-pressing device 18 to obtain the pre-formed body 2.
Form 2
【００１７】ところで、前記外枠１４は図２に示すよう
に、内周面に前記上型２０に向けて先細状のテーパ面２
４が形成され、これにより予備成形体２２は縦断面が台
形形状に形成される。従って、前記予備成形体２２は、
上型２０の退避移動時や予備成形体２２の搬送時に型崩
れが生じない。また、外枠１４の内周面には、孔径が
０．５〜２ｍｍ程度のパンチングメタル２６が固着さ
れ、更に外枠１４の周囲部には孔径が５〜３０ｍｍ程度
の脱水孔２８、２８…が多数形成されている。これによ
り、水硬性原料１６中の余剰水は前記パンチングメタル
２６、脱水孔２８、２８…を介して外枠１４の外部に除
去される。尚、前記脱水孔２８、２８…に真空装置を接
続してバキュームすれば、前記余剰水を強制的に除去す
ることができる。By the way, as shown in FIG. 2, the outer frame 14 has a tapered surface 2 on the inner peripheral surface thereof which is tapered toward the upper die 20.
4 is formed, whereby the preform 22 is formed in a trapezoidal vertical cross section. Therefore, the preform 22 is
The mold does not collapse when the upper mold 20 is retracted and moved or when the preform 22 is conveyed. Further, a punching metal 26 having a hole diameter of about 0.5 to 2 mm is fixed to the inner peripheral surface of the outer frame 14, and further dehydration holes 28, 28 having a hole diameter of about 5 to 30 mm are provided around the outer frame 14. Are formed in large numbers. As a result, the excess water in the hydraulic material 16 is removed to the outside of the outer frame 14 via the punching metal 26, the dehydration holes 28, 28 ... If a vacuum device is connected to the dehydration holes 28, 28 ... For vacuuming, the excess water can be forcibly removed.
【００１８】前記予備プレス装置１８は同図に示すよう
に、油圧シリンダのロッド３０の下部に上定盤３２が固
定され、この上定盤３２の下部に脱水ボックス３４が取
り付けられている。前記脱水ボックス３４の下面（水硬
性原料１６と当接する面）には、前記上型２０を構成す
るパンチングプレート、多孔板、又は金網等の多孔質材
３６が取り付けられている。また、脱水ボックス３４は
図示しない真空装置に接続されている。従って、前記予
備プレス装置１８を下降移動させて前記多孔質材３６を
水硬性原料１６の液面に押し付け、そして、真空装置を
作動すると、水硬性原料１６中の余剰水が水硬性原料１
６の上面からも強制的に除去される。As shown in the figure, in the preliminary press device 18, an upper surface plate 32 is fixed to a lower portion of a rod 30 of a hydraulic cylinder, and a dehydration box 34 is attached to a lower portion of the upper surface plate 32. A porous material 36 such as a punching plate, a perforated plate, or a wire net, which constitutes the upper mold 20, is attached to the lower surface of the dehydration box 34 (the surface that contacts the hydraulic material 16). The dehydration box 34 is connected to a vacuum device (not shown). Therefore, when the preliminary pressing device 18 is moved downward to press the porous material 36 against the liquid surface of the hydraulic raw material 16, and the vacuum device is operated, the excess water in the hydraulic raw material 16 causes the hydraulic raw material 1 to move.
It is also forcibly removed from the upper surface of 6.
【００１９】図１において、外枠１４が取り外された予
備成形体２２は、本プレス装置３８の下方に搬送され
る。この時、予備成形体２２は、縦断面が台形形状に形
成されているので型崩れしない。そして、予備成形体２
２は本プレス装置３８の上枠４０によって、最終プレス
されると共に余剰水が強制的に脱水されて水硬性無機質
成形板４２に製造される。In FIG. 1, the preform 22 from which the outer frame 14 has been removed is conveyed below the main pressing device 38. At this time, since the preform 22 has a trapezoidal vertical cross section, it does not lose its shape. And the preform 2
The second frame 2 is finally pressed by the upper frame 40 of the main press device 38 and the excess water is forcibly dehydrated to be manufactured into the hydraulic inorganic molded plate 42.
【００２０】このように、本実施の形態では、予備プレ
ス中に、水硬性原料１６中の余剰水を外枠１４の周囲面
からも除去して予備プレス時間を短縮したので、生産性
が向上する。As described above, in this embodiment, since the excess water in the hydraulic raw material 16 is removed from the peripheral surface of the outer frame 14 during the preliminary pressing, the preliminary pressing time is shortened, so that the productivity is improved. To do.
【００２１】[0021]
【実施例】水硬性原料として、セメント３０重量％、珪
石粉末４０重量％、パーライト１０重量％、パルプ繊維
１０重量％、無機質骨材５重量％、無機質混和剤５重量
％の割合で混合し、これに水を添加し、固形分が約２０
重量％のスラリー状の水硬性原料を調製した。EXAMPLE As a hydraulic material, 30% by weight of cement, 40% by weight of silica stone, 10% by weight of pearlite, 10% by weight of pulp fiber, 5% by weight of inorganic aggregate and 5% by weight of inorganic admixture were mixed, Water is added to this, and the solid content is about 20.
A wt% slurry hydraulic material was prepared.
【００２２】次いで、このスラリー状の水硬性原料を凹
凸模様を有する下型上に設置された、周囲面（水硬性原
料に当接する面）に小孔を有する外枠の中に供給した。
この下型の凹凸模様は、凹部が不規則に設けられ、その
最大の深さは８ｍｍであった。次いで、小孔が表面（水
硬性原料に当接する面）に開孔する上型と下型とによっ
て予備プレスを行い予備成形体を形成した。予備プレス
の際、上型の小孔を真空装置に接続し、その圧力が−５
００ｍｍＨｇになるように減圧し、水硬性原料中の余剰
水を上型の小孔から強制的に、また、外枠の周囲面の小
孔から自然に除去した。この予備プレスの条件は、常温
で、５ｋｇ重／ｃｍ2 の圧力で１０秒間加圧した。ま
た、外枠周囲面の小孔径は１．６ｍｍ、開孔率５％であ
った。Next, this slurry hydraulic material was fed into an outer frame having small holes on the peripheral surface (surface contacting the hydraulic material) installed on a lower mold having an uneven pattern.
In this lower mold concavo-convex pattern, concave portions were irregularly provided, and the maximum depth thereof was 8 mm. Next, preliminary pressing was performed by using an upper mold and a lower mold in which small holes were opened on the surface (the surface in contact with the hydraulic material) to form a preformed body. At the time of pre-pressing, the small hole of the upper die was connected to the vacuum device, and the pressure was -5.
The pressure was reduced to 00 mmHg, and excess water in the hydraulic raw material was forcibly removed from the small holes in the upper mold and naturally removed from the small holes on the peripheral surface of the outer frame. The condition of this preliminary press was that at room temperature, a pressure of 5 kgf / cm 2 was applied for 10 seconds. The small hole diameter on the peripheral surface of the outer frame was 1.6 mm, and the open area ratio was 5%.
【００２３】かくして形成された予備成形体の含水率は
固形分に対して約１５０％であった。次いで、この予備
成形体を下型が装着された状態で本プレス装置へ移動
し、この下型と本プレス装置に装着されている上型によ
って加圧し、本プレスした。本プレスにおいても上型に
より余剰水を強制的に除去した。本プレスの条件は、常
温で５０ｋｇ重／ｃｍ2 の圧力で１０秒間加圧した。The water content of the preform thus formed was about 150% based on the solid content. Next, this preform was moved to the main pressing device with the lower mold attached, and pressed by the lower mold and the upper mold attached to the main pressing device to perform main pressing. Also in this press, excess water was forcibly removed by the upper mold. The conditions of this press were as follows: normal temperature and pressure of 50 kgf / cm 2 for 10 seconds.
【００２４】かくして形成された水硬性無機質成形板を
下型が装着された状態で反転した後、下型を外した。次
いで、この水硬性無機質成形板を互いに空間を有するよ
うにトレイに積み上げ、８０°Ｃ飽和水蒸気圧下で８時
間養生した後、更にオートクレーブに挿入して１６０°
Ｃで１５時間養生し硬化した。The hydraulic inorganic molded plate thus formed was inverted with the lower mold attached, and then the lower mold was removed. Next, the hydraulic inorganic molded plates were stacked on a tray so as to have a space between them, cured at 80 ° C. under saturated steam pressure for 8 hours, and then inserted into an autoclave to be 160 ° C.
It was cured at C for 15 hours and cured.
【比較例】外枠としてその周囲面に小孔を有しないもの
を使用した以外、実施例と同様の水硬性原料を使用し同
様の方法で予備プレスした。予備成形体２２の含水率が
約１５０％になるまでの押圧時間は６０秒間要した。[Comparative Example] Except that an outer frame having no small holes on its peripheral surface was used, a hydraulic raw material similar to that of the example was used and preliminary pressing was performed in the same manner. The pressing time required for the preform 22 to reach a water content of about 150% was 60 seconds.
【００２５】[0025]
【発明の効果】以上説明したように本発明に係る水硬性
無機質成形板の製造方法によれば、凹凸模様を有する下
型上に設置した外枠の周囲面に小孔を形成し、この小孔
からも水硬性原料の余剰水を除去しながら予備プレスを
行うようにしたので、予備プレス中に発生する圧力を低
減させることができ、また、予備プレス後の形状を維持
することが可能な固形分に対する含水率領域を５０〜２
５０％程度に広げることができる。従って、予備プレス
に要する時間を短縮できるので、生産性良く水硬性無機
質成形板を製造することができる。As described above, according to the method for producing a hydraulic inorganic molded plate according to the present invention, small holes are formed in the peripheral surface of the outer frame installed on the lower mold having an uneven pattern, and the small holes are formed. Since the preliminary pressing is performed while removing excess water of the hydraulic material from the holes, the pressure generated during the preliminary pressing can be reduced and the shape after the preliminary pressing can be maintained. Water content range for solids is 50 to 2
It can be expanded to about 50%. Therefore, the time required for the preliminary pressing can be shortened, so that the hydraulic inorganic molded plate can be manufactured with good productivity.
【図１】本発明の実施例に係る水硬性無機質成形板の製
造工程図FIG. 1 is a manufacturing process diagram of a hydraulic inorganic molded plate according to an embodiment of the present invention.
【図２】外枠の断面形状を示す説明図FIG. 2 is an explanatory view showing a cross-sectional shape of an outer frame.
１２…下型 １４…外枠 １６…水硬性原料 １８…予備プレス装置 ３８…本プレス装置 12 ... Lower mold 14 ... Outer frame 16 ... Hydraulic material 18 ... Preliminary press machine 38 ... Main press machine
Claims (3)
性原料を供給し、上型及び外枠の脱水孔から余剰水を除
去しつつ予備プレスして予備成形体を形成し、次いで、
前記予備成形体を本プレスして前記下型の凹凸模様が転
写された表面形状の水硬性無機質成形板を製造すること
を特徴とする水硬性無機質成形板の製造方法。1. A slurry-shaped hydraulic raw material is supplied to a lower mold having an uneven pattern, and preliminary pressing is performed while removing excess water from the dehydration holes of the upper mold and the outer frame to form a preformed body.
A method for producing a hydraulic inorganic molded plate, characterized in that the preformed product is subjected to main pressing to produce a hydraulic inorganic molded plate having a surface shape to which the uneven pattern of the lower mold is transferred.
板が設けられ、該多孔質板を介して前記余剰水を吸引除
去すると共に、前記外枠の脱水孔は、外枠周囲面に形成
された多数の貫通孔であることを特徴とする請求項１記
載の水硬性無機質成形板の製造方法。2. The upper mold is provided with a porous plate connected to a vacuum device, and the excess water is sucked and removed through the porous plate, and the dehydration holes of the outer frame surround the outer frame. The method for producing a hydraulic inorganic molded plate according to claim 1, characterized in that there are a large number of through holes formed in the surface.
細状のテーパ面を形成し、前記予備成形体の縦断面を台
形形状に形成することにより、予備成形体の型崩れを防
止したことを特徴とする請求項１記載の水硬性無機質成
形板の製造方法。3. A mold for a preform by forming a tapered surface on the inner peripheral surface of the outer frame toward the upper mold and forming a longitudinal cross section of the preform in a trapezoidal shape. The method for producing a hydraulic inorganic molded plate according to claim 1, wherein collapse is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30313895A JP3772333B2 (en) | 1995-11-21 | 1995-11-21 | Method for producing hydraulic inorganic molded plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30313895A JP3772333B2 (en) | 1995-11-21 | 1995-11-21 | Method for producing hydraulic inorganic molded plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09141624A true JPH09141624A (en) | 1997-06-03 |
| JP3772333B2 JP3772333B2 (en) | 2006-05-10 |
Family
ID=17917344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30313895A Expired - Lifetime JP3772333B2 (en) | 1995-11-21 | 1995-11-21 | Method for producing hydraulic inorganic molded plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3772333B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990073330A (en) * | 1999-07-02 | 1999-10-05 | 홍성덕 | a manufacturing apparatus of soil briek |
| US7325488B2 (en) | 1997-11-20 | 2008-02-05 | Murata Manufacturing Co., Ltd. | Method of pressing a ceramic stacked layer structure |
| CN113459250A (en) * | 2021-07-20 | 2021-10-01 | 周晓雪 | Degradable environmental protection brick manufacture equipment |
-
1995
- 1995-11-21 JP JP30313895A patent/JP3772333B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7325488B2 (en) | 1997-11-20 | 2008-02-05 | Murata Manufacturing Co., Ltd. | Method of pressing a ceramic stacked layer structure |
| KR19990073330A (en) * | 1999-07-02 | 1999-10-05 | 홍성덕 | a manufacturing apparatus of soil briek |
| CN113459250A (en) * | 2021-07-20 | 2021-10-01 | 周晓雪 | Degradable environmental protection brick manufacture equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3772333B2 (en) | 2006-05-10 |
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