JPS5914910A - Manufacture of hollow cured body - Google Patents

Manufacture of hollow cured body

Info

Publication number
JPS5914910A
JPS5914910A JP12478182A JP12478182A JPS5914910A JP S5914910 A JPS5914910 A JP S5914910A JP 12478182 A JP12478182 A JP 12478182A JP 12478182 A JP12478182 A JP 12478182A JP S5914910 A JPS5914910 A JP S5914910A
Authority
JP
Japan
Prior art keywords
hollow
rod
cured body
shaped object
cured
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.)
Pending
Application number
JP12478182A
Other languages
Japanese (ja)
Inventor
和夫 瀬戸
保 赤阪
康志 沢田
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 JP12478182A priority Critical patent/JPS5914910A/en
Publication of JPS5914910A publication Critical patent/JPS5914910A/en
Pending legal-status Critical Current

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  • Moulds, Cores, Or Mandrels (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 この発明は、中空硬化体の製法に関するものである。[Detailed description of the invention] The present invention relates to a method for producing a hollow cured body.

従来、無機質の中空硬化体の製法として中空押出成形法
が行われているが、この方法では、成形体内の中空部分
が占める大きさによっては、成形品は硬化するまでに変
形を生ずる場合があり一規定された形状保持は困難であ
る。この傾向は中空部分が大きくなるほど顕著である。
Conventionally, hollow extrusion molding has been used as a method for manufacturing inorganic hollow cured bodies, but with this method, depending on the size occupied by the hollow part of the molded product, the molded product may be deformed before it hardens. It is difficult to maintain a defined shape. This tendency becomes more pronounced as the hollow portion becomes larger.

したがって、中空押出成形法では、中空部の形状保持に
は限界があった。
Therefore, in the hollow extrusion molding method, there is a limit to the ability to maintain the shape of the hollow portion.

この他、供給管を介して成形体内に非硬化性の粒状物を
供給し、硬化後、粒状物を除去する方法があるが、この
方法でも、圧締以降、ことに搬送時に粒状物が内部で移
動し易く、このため、中空形状を完全に保持することは
困難である。さらに、この他、プラスチックコアの周囲
に、長手方向と局面方向の金属線からなる枠を配置して
成形し、養生後、プラスチックコアを除去する方法があ
るが、この方法では、除去後も内部に金属線が残り、中
空硬化体の軽量化を図るには満足すべきものではない。
In addition, there is a method in which non-hardening granules are supplied into the molded body through a supply pipe and the granules are removed after hardening. Therefore, it is difficult to maintain the hollow shape completely. In addition, there is another method in which a frame made of metal wires in the longitudinal and lateral directions is placed around the plastic core, and the plastic core is removed after curing. The metal wires remain behind, which is not satisfactory for reducing the weight of the hollow cured body.

また、プラスチックコア周面への金属線取り付は操作に
難かしさと時間を要するといった難点をも有している。
Additionally, attaching the metal wire to the peripheral surface of the plastic core has the disadvantage that it is difficult and time-consuming to operate.

この発明は、このような事情に鑑みなされたもので、棒
状物を挿入した状態で成形し、硬化後に棒状物を抜き取
るという簡更な工程操作を採用することにより、成形か
ら硬化までに至る間において起き易い中空部への変形を
なくシ、かつ硬化体の軽量化も図り得ることのできる中
空硬化体の製法を提供するものである。
This invention was made in view of these circumstances, and by adopting a simple process operation of molding with a rod-shaped object inserted and removing the rod-shaped object after hardening, the time from molding to hardening is reduced. The purpose of the present invention is to provide a method for manufacturing a hollow cured body, which can eliminate deformation of the hollow portion that is likely to occur in the process, and can also reduce the weight of the cured body.

この発明は一無機質硬化体を製造するに際し、棒状物を
挿入した状態で原材料を成形し、硬化した後、前記棒状
物を抜き取ることを特徴とする中空硬化体の製法を要旨
として匹る。
The gist of the present invention is a method for producing a hollow cured body, which is characterized in that when producing an inorganic cured body, a raw material is molded with a rod-shaped object inserted therein, and after curing, the rod-shaped object is removed.

以下、この発明の詳細について説明する。The details of this invention will be explained below.

この発明の方法において用りる棒状物とは、内部が充填
されている棒状体、または、内部が充填されていない管
状体などを言う。形状は丸形または多角形など用途に応
じて任意に選択でき、特に限定されるものではなh0棒
秋物の材質についても、金属系1合成樹脂系、無機質系
などが使用でき、硬化後の抜き取りまでの間中空研化体
の形状を保持できるものであれば、特に限定されなlA
The rod-shaped object used in the method of the present invention refers to a rod-shaped object whose inside is filled or a tubular object whose inside is not filled. The shape can be arbitrarily selected depending on the purpose, such as round or polygonal, and there are no particular limitations.As for the material of h0boakimono, metal, 1synthetic resin, inorganic, etc. can be used. IA is not particularly limited as long as it can maintain the shape of the hollow polished body until
.

棒状物の表面は、そのままの状態でも使用できるが、例
えば、離型油または離型樹脂などからなる離型剤を塗布
すると、硬化体からの棒状物の抜き取りが容易となる。
Although the surface of the rod can be used as is, if a mold release agent such as mold release oil or mold release resin is applied to the surface, the rod can be easily removed from the cured product.

離型剤は、硬化体と棒状物の材質の関係を考慮し、必要
に応じて使用することが好ましい。一般には、硬化体が
セメントのような場合には、合成樹脂製の棒状物が抜き
取り易く、硬化体が合成樹脂のような場合には、金属製
の棒状物が抜き取り易い。また、棒状体の数についても
、任意に単数または複数を1段もしくは多段に配置して
使用することができる。
It is preferable to use a mold release agent as necessary, taking into consideration the relationship between the materials of the cured body and the rod-shaped article. In general, when the hardened material is cement, it is easier to pull out a rod-shaped object made of synthetic resin, and when the hardened object is made of synthetic resin, it is easier to pull out a rod-shaped object made of metal. Further, regarding the number of rod-shaped bodies, it is possible to arbitrarily use a single rod-shaped body or a plurality of rod-shaped bodies arranged in one stage or in multiple stages.

硬化体の原材料としては、セメント、スラグ。The raw materials for the hardened material are cement and slag.

石こう、炭酸カルシウム、珪砂などの無機質材料の他1
例えばフェノール樹脂、塩化ビニル樹脂。
In addition to inorganic materials such as gypsum, calcium carbonate, and silica sand,
For example, phenolic resin, vinyl chloride resin.

ポリエチレン樹脂などの合成樹脂などが用いられる。さ
らには、この他−パルブ、アスベスト等ノ繊維状物を配
合することもできる。
Synthetic resins such as polyethylene resins are used. Furthermore, other fibrous substances such as pulp and asbestos may also be blended.

中空硬化体の製造方式としては、注型方式および押出方
式などが採用される。注型方式は、第1図に示すように
、型枠lの対向する両端部2,2′に設けた穴3・・・
に、棒状物4を挿入した状態で、マトリックス原材料5
を型枠lの中に流し込む。
As a manufacturing method for the hollow cured body, a casting method, an extrusion method, etc. are adopted. As shown in Fig. 1, the casting method uses holes 3...
With the rod-shaped object 4 inserted into the matrix raw material 5
Pour into the formwork l.

必要に応じてロール等を用いてエンボスを施した後、成
形して養生硬化する。その後、棒状物4を硬化体から抜
き取ることにより、第2図の如き中(3) 空部6を有する中空硬化体7が得られる。
After applying embossing using a roll or the like as necessary, it is molded and cured. Thereafter, by extracting the rod-shaped object 4 from the cured body, a hollow cured body 7 having a hollow part 6 (3) as shown in FIG. 2 is obtained.

押出方式は、第3図のようにホッパー8よす供給された
マトリックス原材料9が、ホッパー8の下方に設けられ
たコンベア10Vcよって矢印入方向に動かされている
受型11上に連続的に流下される。この場合、ホッパー
8の下方から圧締部12に至るまでの間には、マトリッ
クス原材料9中へ棒状物13を挿入し得る管状供給ガイ
ド14が設けられている。圧締部の圧力とコンベアの駆
動力でガイド14から供給される棒状物13は、原材料
中にうまく送り出され、原材料と一緒に運ばれる。この
ようにして、ベルトコンベア10の駆動により受型11
とともに移動してくる原材料は、棒状物13を挿入した
状態のまま、矢印B方向に回転する押出ロール15とフ
ォーミングダイ16の下に入り、これらによって幅と厚
みを整えられ、必要に応じてエンボスロール17で模様
付けをされて、成形体18となる。次に、成形体は適宜
所定の長さに切断され、養生硬化される。そして、棒状
物13が抜き取られる。このようにして、第(4) 2図の如き中空硬化体が得られる。
In the extrusion method, as shown in Fig. 3, the matrix raw material 9 supplied to a hopper 8 is continuously flowed onto a receiving mold 11 that is moved in the direction of the arrow by a conveyor 10Vc provided below the hopper 8. be done. In this case, a tubular feed guide 14 is provided between the bottom of the hopper 8 and the clamping part 12, through which a rod 13 can be inserted into the matrix raw material 9. The rod 13 fed from the guide 14 by the pressure of the clamping part and the driving force of the conveyor is successfully fed into the raw material and carried along with the raw material. In this way, the receiving mold 11 is driven by the belt conveyor 10.
The raw material moving along with the rod-shaped object 13 enters under the extrusion roll 15 and forming die 16 rotating in the direction of arrow B, and is adjusted in width and thickness by these, and is embossed as necessary. It is patterned with a roll 17 and becomes a molded body 18. Next, the molded body is appropriately cut into a predetermined length and cured. Then, the rod-shaped object 13 is extracted. In this way, a hollow cured body as shown in FIG. 2 (4) is obtained.

押出方式を利用して、中空部を多段に有する硬化体をつ
くるような場合には、第4図のようにマトリックス原材
料9を押出機19の押出スクリュ2oによって押出ヘッ
ド21から押し出す。
When an extrusion method is used to produce a cured product having multiple hollow sections, the matrix raw material 9 is extruded from the extrusion head 21 by the extrusion screw 2o of the extruder 19, as shown in FIG.

この場合は、押出ヘッド21の下方から圧締部22に至
るまでの間には、マトリックス原材料9中へ棒状物23
を挿入し得る管状供給ガイド24が設けられている。他
方、押出ヘッド21の出口付近上方から圧締部22に至
るまでの間にも、マトリックス原材料9中へ棒状物25
を挿入し得る湾曲した管状供給ガイド26が設けられて
いる。
In this case, a rod-shaped object 23 is inserted into the matrix raw material 9 from the bottom of the extrusion head 21 to the clamping part 22.
A tubular feed guide 24 is provided into which the feed guide 24 can be inserted. On the other hand, rod-shaped objects 25 are also inserted into the matrix raw material 9 from the upper part near the exit of the extrusion head 21 to the clamping part 22.
A curved tubular feed guide 26 is provided into which the feed guide 26 can be inserted.

押出力と圧締部の圧力で各ガイド24,26から供給さ
れる棒状物23.25は、原材料9中にうまく送り出さ
れ、原材料と一緒に運ばれる。送り出された原材料は、
押出ダイ27.により幅と厚みを整えられ、必要に応じ
てエンボスロール(図示せず)で模様付けをされる。引
続き、原材料は、棒状物23.25を挿入した状態のま
ま、押し出されて成形体28となる。成形体は、適宜所
定の長さに切断され、養生硬化される。そして、棒状物
23.25が抜き取られる。このようにして、中空部を
多段に有する硬化体が得られる。
The rods 23, 25 fed from each guide 24, 26 by the extrusion force and the pressure of the clamping part are successfully fed into the raw material 9 and are conveyed together with the raw material. The raw materials sent out are
Extrusion die 27. The width and thickness are adjusted using the emboss roll, and if necessary, a pattern is applied using an embossing roll (not shown). Subsequently, the raw material is extruded into a molded body 28 with the rods 23, 25 still inserted. The molded body is appropriately cut into a predetermined length and cured. The rods 23.25 are then extracted. In this way, a cured body having multiple hollow portions is obtained.

この発明は、上述のように棒状物を挿入した状態で成形
し、硬化後、硬化物から棒状物を抜き取るので、操作が
極めて簡単であり、成形から硬化までに至る間、ことに
圧締時および搬送時において起き易い変形が起らない。
In this invention, as described above, molding is carried out with the rod-shaped object inserted, and after curing, the rod-shaped object is removed from the cured product, so the operation is extremely simple, and during the period from molding to curing, especially when pressing. Also, deformation that tends to occur during transportation does not occur.

さらには、中空部を確実に保持しているので、硬化体の
軽量化が充分に図れるのである。
Furthermore, since the hollow portion is reliably held, the weight of the cured product can be sufficiently reduced.

この発明の実施例について以下に説明する。Examples of the invention will be described below.

マトリックス原材料として一次の配合物を用しへた。The primary formulation was used as the matrix raw material.

高炉セメン80種     40チ □  火山灰          15係フライアツシ
ユ      10係 パーライト         10憾 ビニロン           5憾 水                  20憾製造方
式は第3図に示す押出方式にしたがうこととし、各実施
例とも次の条件で行なった。
80 types of blast furnace cement 40 cm Volcanic ash 15 parts Fly ash 10 parts Perlite 10 parts Vinylon 5 parts water 20 parts The manufacturing method was the extrusion method shown in FIG. 3, and each example was carried out under the following conditions.

成形体形状      板状体 成形体の厚み     30mm 成形体の幅      600 mm 成形体の長さ     3000mm 搬送速度       20m/分 〔実施例1〕 棒状物として、外径15mm+肉厚2.5 mmの鉄製
円筒管を用いることとし、これを幅方向に20本挿入し
て成形後、80℃湿熱で48時間養生し、さらに、1週
間放置した後、棒状物を抜き取って60℃で24時間乾
燥し、中空硬化体を得た。得られた中空硬化体の嵩比重
は、1.07であり、中空部の壁面は、少し粗面を呈し
たが、中空部は確実に保持されていた。
Formed object shape Plate-shaped object Thickness of formed object 30 mm Width of formed object 600 mm Length of formed object 3000 mm Conveyance speed 20 m/min [Example 1] As a rod-shaped object, an iron cylindrical tube with an outer diameter of 15 mm and a wall thickness of 2.5 mm. After molding by inserting 20 rods in the width direction, they were cured for 48 hours under moist heat at 80°C, and after being left for one week, the rods were removed and dried at 60°C for 24 hours to form a hollow curing material. I got a body. The bulk specific gravity of the obtained hollow cured body was 1.07, and although the wall surface of the hollow part was a little rough, the hollow part was reliably held.

〔実施例2〕 実施例1と同じ棒状物の表面に、ホーマ油を塗布した以
外は、実施例1と同一条件で行なった。
[Example 2] Testing was carried out under the same conditions as in Example 1, except that houma oil was applied to the surface of the same rod-shaped object as in Example 1.

得られた中空硬化体の嵩比重は1.07であり、中空部
壁面はきれいに仕上っていた。また、棒状体(7) の抜き取りは極めて容易に行なうことができ、中空部は
確実に保持されていた。
The bulk specific gravity of the obtained hollow cured body was 1.07, and the wall surface of the hollow part was neatly finished. Further, the rod-shaped body (7) could be removed extremely easily, and the hollow portion was securely held.

〔実施例3〕 棒状物として、外径20mm+肉厚2 mmの塩ビ製円
筒管を用いることとし、これを幅方向に20本挿入して
成形後、80℃湿熱で48時間養生し、さらに常温で1
週間放置した後、棒状物を抜き取って、60℃で24時
間乾燥し、中空硬化体を得た。得られた中空硬化体の嵩
比重は0.88であり、中空部の壁面はきれいに仕上っ
ていた。また、中空部は確実に保持されていた。
[Example 3] A PVC cylindrical tube with an outer diameter of 20 mm and a wall thickness of 2 mm was used as a rod-shaped object. After molding, 20 of these were inserted in the width direction, and then cured for 48 hours in moist heat at 80°C, and then left at room temperature. de1
After being left for a week, the rod-shaped object was taken out and dried at 60° C. for 24 hours to obtain a hollow cured body. The bulk specific gravity of the obtained hollow cured body was 0.88, and the wall surface of the hollow part was neatly finished. Moreover, the hollow part was held securely.

〔実施例4〕 実施例3と同じ条件で成形後、スタッコ調のエンボスを
プレス圧5 kgで行ない、1 mmの凹凸をつけた。
[Example 4] After molding under the same conditions as in Example 3, stucco-like embossing was performed at a press pressure of 5 kg to create 1 mm unevenness.

その後は、実施例3と同一条件で行ない、中空硬化体を
得た。得られた中空硬化体は、エンボス時にプレス圧が
かかってAるにもかかわらず、中空部は変形が起きず保
持されていた。中空部壁面は少し粗面を呈してかだ。
Thereafter, the same conditions as in Example 3 were carried out to obtain a hollow cured body. In the obtained hollow cured body, the hollow part was maintained without deformation even though press pressure was applied during embossing. The wall surface of the hollow part has a slightly rough surface.

〔実施例5〕 (8) 実施例3と同じ塩ビ製円筒管の表面にホーマ油を塗布し
て使用した以外は、実施例4と同一条件で中空硬化体を
得た。得られた中空硬化体は一中空部壁面がきれいに仕
上っていた。また、中空部は確実に保持されていた。
[Example 5] (8) A hollow cured body was obtained under the same conditions as in Example 4, except that the same PVC cylindrical tube as in Example 3 was used by applying houma oil to the surface. The obtained hollow cured body had a well-finished wall surface in one hollow part. Moreover, the hollow part was held securely.

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

%1図は、この発明の1実施例である注型方式をあられ
す斜視図、第2図は、この発明にかかる中空硬化体の斜
視図、第3図は、この発明の他の実施例である押出方式
をあられす工程説明図、第4図は、この発明の他の実施
例である押出方式をあられす工程説明図である。 4.13.23.25・・・棒状物 6・・・中空部7
・・・中空硬化体 特許出願人 松下電工株式会社 代理人 弁理士 松 本  武  彦
Figure 1 is a perspective view of a casting method according to one embodiment of the present invention, Figure 2 is a perspective view of a hollow cured body according to the invention, and Figure 3 is another embodiment of the invention. FIG. 4 is a process explanatory diagram showing an extrusion method according to another embodiment of the present invention. 4.13.23.25... Rod-shaped object 6... Hollow part 7
...Hollow hardened body patent applicant Matsushita Electric Works Co., Ltd. agent Patent attorney Takehiko Matsumoto

Claims (2)

【特許請求の範囲】[Claims] (1)無機質硬化体を製造するに際し、棒状物を挿入し
た状態で原材料を成形し、硬化した後、前記棒状物を抜
き取ることを特徴とする中空硬化体の製法。
(1) When producing an inorganic cured body, a method for producing a hollow cured body is characterized in that a raw material is molded with a rod-shaped object inserted therein, and after curing, the rod-shaped object is removed.
(2)棒状物が、その表面に離型剤が塗布されたもので
ある特許請求の範囲@1項記載の中空硬化体の製法。
(2) The method for producing a hollow cured body according to claim 1, wherein the rod-shaped body has a surface coated with a mold release agent.
JP12478182A 1982-07-16 1982-07-16 Manufacture of hollow cured body Pending JPS5914910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12478182A JPS5914910A (en) 1982-07-16 1982-07-16 Manufacture of hollow cured body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12478182A JPS5914910A (en) 1982-07-16 1982-07-16 Manufacture of hollow cured body

Publications (1)

Publication Number Publication Date
JPS5914910A true JPS5914910A (en) 1984-01-25

Family

ID=14893952

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12478182A Pending JPS5914910A (en) 1982-07-16 1982-07-16 Manufacture of hollow cured body

Country Status (1)

Country Link
JP (1) JPS5914910A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10505028A (en) * 1995-02-09 1998-05-19 イパ − アイソラスト インターナショナル エス.エー. Manufacturing method of thermal insulation panel for large panel structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10505028A (en) * 1995-02-09 1998-05-19 イパ − アイソラスト インターナショナル エス.エー. Manufacturing method of thermal insulation panel for large panel structure

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