JPH0214105A - Extrusion molding method for foamed light-weight cement plate and its mold - Google Patents

Extrusion molding method for foamed light-weight cement plate and its mold

Info

Publication number
JPH0214105A
JPH0214105A JP16450388A JP16450388A JPH0214105A JP H0214105 A JPH0214105 A JP H0214105A JP 16450388 A JP16450388 A JP 16450388A JP 16450388 A JP16450388 A JP 16450388A JP H0214105 A JPH0214105 A JP H0214105A
Authority
JP
Japan
Prior art keywords
specific gravity
cement
slurry
high specific
mold
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
Application number
JP16450388A
Other languages
Japanese (ja)
Other versions
JP2592103B2 (en
Inventor
Kazumasa Fukutomi
和正 福冨
Masayuki Inao
稲生 正行
Akio Kawada
川田 章雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP63164503A priority Critical patent/JP2592103B2/en
Publication of JPH0214105A publication Critical patent/JPH0214105A/en
Application granted granted Critical
Publication of JP2592103B2 publication Critical patent/JP2592103B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To manufacture high performance foamed light-weight cement plate, of high strength and low water absorption properties, by forming a high specific gravity cement coated layer on the surface of a foamed light-weight cement plate by means of a molding die with a double structure slurry discharge outlet. CONSTITUTION:High specific gravity cement slurry extruded from a high specific slurry feeding outlet 2 by means of a screw type extrusion device or the like is fed in a double structure mold 1. Low specific cement slurry is fed from a low specific cement slurry feeding tube 3 by means of a pump. When the high specific gravity cement slurry is discharged from a discharge outlet 4 and the low specific gravity cement slurry is discharged from a discharge outlet 5 simultaneously, a high specific gravity cement coated layer 7 is formed on the surface of a low specific gravity foamed light-weight cement plate 6, and fragility and high water absorption properties, defects of the foamed light-weight cement plate, are improved by said coated layer 7.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は、発泡軽量セメント板の押し出し成形法とそ
の金型に関するものである。さらに詳しくは、この発明
は、比重0.7以下の発泡軽量セメント板を高効率で連
続的に押し出し成形し、高強度、低吸水性の高性能発泡
軽量セメント板を製造することのできる押し出し成形法
とその金型に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an extrusion molding method for a lightweight foamed cement board and a mold thereof. More specifically, the present invention is capable of continuously extruding a foamed lightweight cement board with a specific gravity of 0.7 or less with high efficiency, and to produce a high-performance foamed lightweight cement board with high strength and low water absorption. It concerns the law and its mold.

(従来の技術) 従来より、発泡軽量セメント板の成形方法としては、A
LCに代表されるように、アフターフオーム注型法や、
コンベア上で連続的に成形する方法などが知られている
。たとえば、添付した図面の第6図に示したように、ミ
キサー(ア)で混合した発泡軽量セメントのスラリー(
イ)を型枠(つ)に注入し、スラリー(イ)を発泡させ
てケーキ状のセメント板(1)を形成し、気泡がセメン
ト板の自重でつぶれない程度に硬化した状態で型枠(つ
)をセメント板(工)からはずし、型枠(つ)をスラリ
ー注入位置まで戻すとともに、ケーキ状のセメント板(
1)は、連続ライン上に設けであるカッター(オ)(力
)で切断して、所定の形状に成形する方法が知られてい
る。
(Prior art) Conventionally, the method of forming lightweight foamed cement board is A.
As represented by LC, after-form casting method,
Methods such as continuous molding on a conveyor are known. For example, as shown in Figure 6 of the attached drawings, foamed lightweight cement slurry (
Pour the slurry (A) into the formwork (1) and foam the slurry (A) to form a cake-like cement board (1). Remove the cement board (1) from the cement board (work), return the formwork (1) to the slurry injection position, and remove the cake-shaped cement board (1).
As for 1), a method is known in which the material is cut into a predetermined shape by cutting with a cutter (e) (force) provided on a continuous line.

(発明が解決しようとする課M) しかしながら、上記したような従来の発泡軽量セメント
板の成形方法においては、セメント板の切断面の損傷が
避けられず、また、注型から成形の作業1穆の効率も悪
かった。この欠点を解決する方策として、発泡軽量セメ
ント板を押し出し成形により成形することが考えられて
いるが、これまでのところ実現性の乏しいのが実状であ
る。たとえば、高比重のセメント板の成形に用いられて
いるスクリュータイプの押し出し成形装置を用いて比重
0.7以下の低比重の発泡軽量セメント板を押し出し成
形しようとしても、セメントは気泡を多量に含んでいる
ために、気泡がつぶれてしまう。
(Problem M to be solved by the invention) However, in the conventional molding method of foamed lightweight cement board as described above, damage to the cut surface of the cement board is unavoidable, and the work from casting to molding is difficult. The efficiency was also poor. As a measure to solve this drawback, it has been considered to form a lightweight foamed cement board by extrusion molding, but the reality is that it has been difficult to implement so far. For example, if you try to extrude a lightweight foamed cement board with a low specific gravity of 0.7 or less using a screw-type extrusion device that is used for forming cement boards with a high specific gravity, the cement will contain a large amount of air bubbles. Because of this, the bubbles collapse.

この発明は以上の事情に鑑みてなされたものであり、上
記した通りの従来の技術の欠点を解消し、しかも高強度
で低吸水性の高性能発泡軽量セメント板をこれまでの技
術では実現されてこなかった押し出し成形法によって製
造する方法を提供することを目的としている。
This invention has been made in view of the above circumstances, and it solves the drawbacks of the conventional technology as described above, and also provides a high-performance lightweight foamed cement board with high strength and low water absorption, which has not been achieved with conventional technology. The purpose of this invention is to provide a manufacturing method using an extrusion molding method, which has not been used before.

(課題を解決するするための手段) この発明は、上記の課題を解決するために二重構造のス
ラリー吐出口を有する成形金型の一方の吐出口より低比
重のスラリーを吐出させ、もう−方の吐出口より高比重
のスラリーを同時吐出させて、発泡軽量セメント板の表
面に高比重セメントの被覆層を形成することを特徴とす
る発泡軽量セメント板の押し出し成形法を提供するもの
である。
(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention discharges a slurry with a low specific gravity from one discharge port of a molding die having a dual structure slurry discharge port, and This invention provides an extrusion molding method for a lightweight foamed cement board, characterized in that a high specific gravity slurry is simultaneously discharged from both discharge ports to form a coating layer of high specific gravity cement on the surface of the lightweight foamed cement board. .

また、この発明は、高比重セメントの表面被覆層を形成
する高比重スラリーの吐出口と低比重スラリーの吐出口
とを二重構造としてなる発泡軽量セメント板の押し出し
成形金型をも提供する。
The present invention also provides an extrusion mold for a lightweight foamed cement board having a dual structure of a high specific gravity slurry discharge port and a low specific gravity slurry discharge port forming a surface coating layer of high specific gravity cement.

この金型の形状、大きさには特に限定はないが、セメン
トスラリー吐出口を二重構造とすることは欠かせない。
Although there are no particular limitations on the shape and size of this mold, it is essential that the cement slurry discharge port has a double structure.

この発明に用いるセメントスラリーは、通常の配合物と
して使用することができ、ポルトランドセメントをはじ
めとする各種のセメントに、フライアッシュ、珪石粉、
繊維補強剤、増粘剤などを適宜に加えたものとする。こ
のうちの低比重の軽量発泡セメントとしては、これらの
配合物に起泡剤、界面活性剤等を加え、比重を0.7以
下としたものを用いることができる。
The cement slurry used in this invention can be used as a normal compound, and can be mixed with various cements including Portland cement, fly ash, silica powder, etc.
Fiber reinforcing agents, thickeners, etc. shall be added as appropriate. Among these, lightweight foamed cement with low specific gravity can be made by adding a foaming agent, a surfactant, etc. to these blends to have a specific gravity of 0.7 or less.

(作 用) この発明においては、比重の相違するセメントスラリー
を別々の吐出口から吐出させる二重構造金型を用いるこ
とにより、従来困難であった比重0.7以下の発泡軽量
セメント板を気泡を押しつぶすことなく、高効率で連続
的に押し出し成形する。
(Function) In this invention, by using a double structure mold that discharges cement slurries with different specific gravities from separate discharge ports, it is possible to form a lightweight foamed cement board with a specific gravity of 0.7 or less, which has been difficult in the past. Continuous extrusion molding with high efficiency without crushing.

また、この二重構造金型の使用によって、低比重の発泡
軽量セメント板表面を高比重セメントで被覆するため、
高強度で低吸水性の高性能な発泡軽量セメント板を製造
することができる。
In addition, by using this double structure mold, the surface of the low specific gravity foamed lightweight cement board is coated with high specific gravity cement.
It is possible to manufacture high-performance lightweight foamed cement boards with high strength and low water absorption.

この二重構造の押し出し成形金型では中空構造セメント
板の成形も可能であり、より軽量で高強度、低吸水性の
発泡軽量セメント板を製造することもできる。
This double-structured extrusion mold can also be used to form hollow structure cement boards, and it is also possible to produce lightweight foamed cement boards that are lighter, have higher strength, and have lower water absorption.

(実施例) 次に、実施例を示してさらに詳しくこの発明について説
明する。
(Example) Next, the present invention will be described in more detail by showing examples.

添付した図面の第1図は、この発明の二重構造金型の一
実施例を示した斜視図である。また、第2図は、X方向
から見た正面図を、第3図は、Y−Y’での断面図を示
している。
FIG. 1 of the accompanying drawings is a perspective view showing one embodiment of the double structure mold of the present invention. Moreover, FIG. 2 shows a front view seen from the X direction, and FIG. 3 shows a sectional view along YY'.

この例に示した二重構造金型(1)においては、第1図
および第3図に示した高比重セメントスラリー供給口(
2)から、スクリュータイプ押し出し装置算により押し
出した高比重セメントスラリーを供給する。低比重セメ
ントスラリー供給管(3)からは、ポンプによって低比
重セメントスラリーを供給する。
In the double structure mold (1) shown in this example, the high specific gravity cement slurry supply port (
From 2), a high specific gravity cement slurry extruded by a screw type extruder is supplied. A pump supplies low specific gravity cement slurry from the low specific gravity cement slurry supply pipe (3).

高比重のセメントスラリーは、吐出口(4)から、また
低比重セメントスラリーは吐出口(5)から同時に吐出
させ、低比重のセメント表面に高比重セメントの薄い被
覆層を形成するように成形する。
The high specific gravity cement slurry is simultaneously discharged from the discharge port (4), and the low specific gravity cement slurry is simultaneously discharged from the discharge port (5), and shaped to form a thin coating layer of high specific gravity cement on the surface of the low specific gravity cement. .

第4図は、このような二重構造金型を用いて押し出し成
形した発泡軽量セメント板を断面として例示したもので
ある。
FIG. 4 is a cross-sectional view of a lightweight foamed cement board extruded using such a double-structure mold.

低比重の発泡軽量セメント板(6)の表面には高比重セ
メントの被覆層(7)が形成されており、この被覆層(
7)によって、発泡軽量セメント板の欠点である欠けや
すさと高吸水性を改善している。
A coating layer (7) of high specific gravity cement is formed on the surface of the low specific gravity foam lightweight cement board (6), and this coating layer (
7) improves the shortcomings of lightweight foamed cement boards, such as ease of chipping and high water absorption.

以上の二重構造金型からなる押し出し成形装置を用いて
、たとえば次のような配合のセメントスラリーによって
、発泡軽量セメント板を押し出し成形する。
Using the extrusion molding apparatus comprising the above-mentioned double-structure mold, a lightweight foamed cement board is extruded using, for example, a cement slurry having the following composition.

<A>低比重セメントスラリー (a)比 重 0,5(気泡により調整)(b)配合比 ポルトランドセメント:40% フライアッシュ   =20% 珪石粉       :40% その他添加剤    =1〜2% 補強様ll#=1% 起泡剤       −適 量 <B>高比重セメントスラリー (a)比 重 1.2(軽量骨材により調整)(b)配
合比 ポルトランドセメント=40% フライアッシュ   :20% 珪石粉  240% その他添加剤    :1〜2%補 強繊維  :1% たとえば、この配合からなるセメントスラリーにより、
高比重セメントによって表面被覆した高性能発泡軽量セ
メント板を高効率で押し出し成形することができた。
<A> Low specific gravity cement slurry (a) Specific gravity 0.5 (adjusted by air bubbles) (b) Mixing ratio Portland cement: 40% Fly ash = 20% Silica powder: 40% Other additives = 1-2% Reinforcement ll # = 1% Foaming agent - Appropriate amount <B> High specific gravity cement slurry (a) Specific gravity 1.2 (adjusted with lightweight aggregate) (b) Mixing ratio Portland cement = 40% Fly ash: 20% Silica powder 240% Other additives: 1-2% Reinforcing fiber: 1% For example, with a cement slurry made of this composition,
We were able to extrude and mold high-performance lightweight foamed cement boards with high specific gravity surface coated with high specific gravity cement.

第5図は、この発明の別の二重構造金型を用いて押し出
し成形した高性能発泡軽量セメント板の例を断面図とし
て示したものである。
FIG. 5 is a cross-sectional view of an example of a high-performance lightweight foamed cement board extruded using another double-structure mold of the present invention.

押し出し成形金型の細部の構造を変更することにより、
この第5図に示したような、内部に空隙(8)を有する
中空構造の発泡軽量セメント板を高効率で連続的に押し
出し成形することもできる。
By changing the detailed structure of the extrusion mold,
It is also possible to continuously extrude a foamed lightweight cement board having a hollow structure having voids (8) inside as shown in FIG. 5 with high efficiency.

もちろん、以上示した例によりこの発明は限定されるこ
とはない、低比重セメントスラリーおよび高比重セメン
トスラリーの比重および配合比をはじめ、金型の大きさ
、形状等については、特に限定されるものではない、様
々なりsが可能である。
Of course, the present invention is not limited to the examples shown above, but there are no particular limitations on the specific gravity and blending ratio of the low specific gravity cement slurry and high specific gravity cement slurry, as well as the size and shape of the mold. It is not, but various s are possible.

(発明の効果) 以上詳しく説明してきた通り、この発明の発泡軽量セメ
ント板の押し出し成形法によって、従来押し出し成形が
困難であった発泡軽量セメント板を高効率で連続的に成
形することができる。
(Effects of the Invention) As explained above in detail, by the extrusion molding method for a lightweight foamed cement board of the present invention, a lightweight foamed cement board, which has conventionally been difficult to extrude, can be continuously molded with high efficiency.

また、発泡軽量セメント板の表面を高比重セメントの被
覆層で被覆することにより、高強度で、低吸水性の高性
能発泡軽量セメント板を製造することができる。
Moreover, by coating the surface of the foamed lightweight cement board with a coating layer of high specific gravity cement, a high-performance lightweight foamed cement board with high strength and low water absorption can be manufactured.

この高比重セメントの被覆層においては、従来からの軽
量セメント板に比べてはるかにすぐれた様々な表面塗装
も可能となる。
This high-density cement coating layer allows for a variety of surface coatings that are far superior to conventional lightweight cement boards.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図、第2図および第3図は、各々この発明の押し出
し成形金型の一例を示した斜視図、正面図および断面図
である。 第4図は、この発明による発泡軽量セメント板の一例を
示した断面図である。 第5図は、この発明による発泡軽量セメント板の別の例
を示した断面図である。 第6図は、従来からの発泡軽量セメント板の成形方法を
示した工程配置図である。 1・・・二重構造金型 2・・・高比重セメントスラリー供給口3・・・低比重
セメントスラリー供給管4・・・高比重セメントスラリ
ー吐出口5・・・低比重セメントスラリー吐出口6・・
・発泡軽量セメント板 7・・・高比重セメント被覆層 8・・・空 隙 代理人 弁理士  西  澤  利  夫窮 図 第 図 第 図 ■ 手続補正書(自 発)(3) 平成1年 4月14日 1、事件の表示 昭和63年 特 許 願 第164503号 2、発明の名称 発泡軽量セメント板の押し出し成形法とその金型補正を
する者 事件との関係   特許出願人 住所  大阪府門真市大字門真1048番地名称  (
583)松下電工株式会社 代表者三好俊夫 4、代 理 人 (郵便番号150) 東京都渋谷区宇田川町2−1 渋谷ホームズ423 明細書の「発明の詳細な説明」の欄 6、補正の内容
FIG. 1, FIG. 2, and FIG. 3 are a perspective view, a front view, and a sectional view, respectively, showing an example of an extrusion molding die of the present invention. FIG. 4 is a sectional view showing an example of a foamed lightweight cement board according to the present invention. FIG. 5 is a sectional view showing another example of a lightweight foamed cement board according to the present invention. FIG. 6 is a process layout diagram showing a conventional method for forming a lightweight foamed cement board. 1... Double structure mold 2... High specific gravity cement slurry supply port 3... Low specific gravity cement slurry supply pipe 4... High specific gravity cement slurry discharge port 5... Low specific gravity cement slurry discharge port 6・・・
・Foamed lightweight cement board 7...High specific gravity cement coating layer 8...Gap Agent Patent attorney Toshi Nishizawa Fukuzuzu Figure ■ Procedural amendment (voluntary) (3) April 14, 1999 Day 1, Display of the case 1986 Patent Application No. 164503 2, Name of the invention Extrusion molding method for lightweight foamed cement board and person who corrects the mold Relationship with the case Patent applicant address 1048 Kadoma, Kadoma City, Osaka Prefecture Street name (
583) Matsushita Electric Works Co., Ltd. Representative Toshio Miyoshi 4, Agent (Postal code 150) Shibuya Holmes 423, 2-1 Udagawa-cho, Shibuya-ku, Tokyo Column 6 of "Detailed Description of the Invention" of the specification, Contents of amendment

Claims (2)

【特許請求の範囲】[Claims] (1)二重構造のスラリー吐出口を有する成形金型の一
方の吐出口より低比重のスラリーを吐出させ、もう一方
の吐出口より高比重のスラリーを同時吐出させて、発泡
軽量セメント板表面に高比重セメントの被覆層を形成す
ることを特徴とする発泡軽量セメント板の押し出し成形
法。
(1) A slurry with a low specific gravity is discharged from one discharge port of a molding mold having a dual structure of slurry discharge ports, and a slurry with a high specific gravity is simultaneously discharged from the other discharge port to form a surface of the lightweight foamed cement board. An extrusion molding method for lightweight foamed cement board, which is characterized by forming a covering layer of high specific gravity cement.
(2)高比重セメントの表面被覆層を形成する高比重ス
ラリーの吐出口と低比重スラリーの吐出口とを二重構造
としてなる発泡軽量セメント板の押し出し成形金型。
(2) An extrusion mold for a lightweight foamed cement board having a dual structure of a high specific gravity slurry discharge port and a low specific gravity slurry discharge port forming a surface coating layer of high specific gravity cement.
JP63164503A 1988-07-01 1988-07-01 Extrusion molding die for foamed lightweight cement board and extrusion molding method using the same Expired - Lifetime JP2592103B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63164503A JP2592103B2 (en) 1988-07-01 1988-07-01 Extrusion molding die for foamed lightweight cement board and extrusion molding method using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63164503A JP2592103B2 (en) 1988-07-01 1988-07-01 Extrusion molding die for foamed lightweight cement board and extrusion molding method using the same

Publications (2)

Publication Number Publication Date
JPH0214105A true JPH0214105A (en) 1990-01-18
JP2592103B2 JP2592103B2 (en) 1997-03-19

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05278093A (en) * 1992-03-31 1993-10-26 Agency Of Ind Science & Technol Method for lamination extrusion molding and its apparatus
JPH06210611A (en) * 1992-06-02 1994-08-02 Kubota Corp Extrusion molding method of inorganic building material
WO1996031330A1 (en) * 1995-04-07 1996-10-10 Arnold Guettler Process and device for the manufacture of pultruded building elements
JP2014040069A (en) * 2012-08-23 2014-03-06 Kmew Co Ltd Method for producing extruded cement plate
JP2014046558A (en) * 2012-08-31 2014-03-17 Kmew Co Ltd Production method for extrusion cement plate
JP2015150747A (en) * 2014-02-13 2015-08-24 ケイミュー株式会社 Extrusion molding mold, ceramic building material and method of producing ceramic building material
CN105751360A (en) * 2016-04-25 2016-07-13 王铁石 Foamed cement board core forming mould and forming device and method
JP2016180210A (en) * 2015-03-23 2016-10-13 ケイミュー株式会社 Building board
JP2017066740A (en) * 2015-09-30 2017-04-06 ケイミュー株式会社 Building board
JP2017214719A (en) * 2016-05-30 2017-12-07 ケイミュー株式会社 Building board
JP2021131014A (en) * 2019-09-18 2021-09-09 ケイミュー株式会社 Manufacturing method of building board

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JPS6418604A (en) * 1987-07-14 1989-01-23 Ig Tech Res Inc Extrusion molding device

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JPS5278233A (en) * 1975-12-25 1977-07-01 Okura Industrial Co Ltd Production of inorganic* reinforced* lighttweight combined board by extrusion
JPS6418604A (en) * 1987-07-14 1989-01-23 Ig Tech Res Inc Extrusion molding device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05278093A (en) * 1992-03-31 1993-10-26 Agency Of Ind Science & Technol Method for lamination extrusion molding and its apparatus
JPH06210611A (en) * 1992-06-02 1994-08-02 Kubota Corp Extrusion molding method of inorganic building material
WO1996031330A1 (en) * 1995-04-07 1996-10-10 Arnold Guettler Process and device for the manufacture of pultruded building elements
JP2014040069A (en) * 2012-08-23 2014-03-06 Kmew Co Ltd Method for producing extruded cement plate
JP2014046558A (en) * 2012-08-31 2014-03-17 Kmew Co Ltd Production method for extrusion cement plate
JP2015150747A (en) * 2014-02-13 2015-08-24 ケイミュー株式会社 Extrusion molding mold, ceramic building material and method of producing ceramic building material
JP2016180210A (en) * 2015-03-23 2016-10-13 ケイミュー株式会社 Building board
JP2017066740A (en) * 2015-09-30 2017-04-06 ケイミュー株式会社 Building board
CN105751360A (en) * 2016-04-25 2016-07-13 王铁石 Foamed cement board core forming mould and forming device and method
JP2017214719A (en) * 2016-05-30 2017-12-07 ケイミュー株式会社 Building board
JP2021131014A (en) * 2019-09-18 2021-09-09 ケイミュー株式会社 Manufacturing method of building board

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