JPH11286006A - Molding form and lightweight cellular concrete panel - Google Patents
Molding form and lightweight cellular concrete panelInfo
- Publication number
- JPH11286006A JPH11286006A JP9138398A JP9138398A JPH11286006A JP H11286006 A JPH11286006 A JP H11286006A JP 9138398 A JP9138398 A JP 9138398A JP 9138398 A JP9138398 A JP 9138398A JP H11286006 A JPH11286006 A JP H11286006A
- Authority
- JP
- Japan
- Prior art keywords
- molding
- mold
- cellular concrete
- cured
- concrete panel
- 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
- Moulds, Cores, Or Mandrels (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Panels For Use In Building Construction (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、無機成形体用の成
形型枠及び軽量気泡コンクリートパネルに関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold for an inorganic molded article and a lightweight cellular concrete panel.
【０００２】[0002]
【従来の技術】近年、意匠性に優れた軽量気泡コンクリ
ートパネルの要求が高まっており、パネル表面に模様を
付ける方法として、軽量気泡コンクリートパネルが半硬
化状態の時に模様を有する化粧型を表面に押しつけて模
様を形成させる方法が提案されている。例えば、特公平
５−３４１２１号公報、特公平３−２７３６８号公報、
特開平９−１５７０５６号公報では、化粧型を半硬化状
軽量気泡コンクリートパネルに押しつけて模様を形成さ
せる時に、半硬化状パネルの欠損を抑制する手段として
模様をつける面以外の各面を型枠やあて板で拘束する方
法が提案されている。2. Description of the Related Art In recent years, there has been an increasing demand for lightweight cellular concrete panels having excellent design properties. As a method of applying a pattern to the panel surface, a decorative mold having a pattern when the lightweight cellular concrete panel is in a semi-cured state is used. A method of forming a pattern by pressing is proposed. For example, Japanese Patent Publication No. 5-34121, Japanese Patent Publication No. 3-27368,
In Japanese Patent Application Laid-Open No. 9-157056, when a decorative mold is pressed against a semi-cured lightweight cellular concrete panel to form a pattern, each surface other than the surface on which the pattern is to be formed is formed as a means for suppressing chipping of the semi-cured panel. A method of restraining with a hotplate has been proposed.
【０００３】しかしながら、このような型枠やあて板
は、半硬化状パネルを押しつけて模様を形成させる時
に、パネルの欠損を抑制することができるものの、半硬
化状パネルが型枠やあて板に付着するため、脱型する時
にパネル欠損が多発し製品品質の低下や製品収率の低下
を招く。また、型枠やあて板に付着したモルタルを除去
するためには、新たな除去設備の導入が必要であるばか
りか、成形毎に繰り返し除去しなければならず、成形体
のコストアップや成形体生産性の低下をも招くことにな
る。[0003] However, such a formwork and a backing plate can suppress the damage of the panel when the semi-cured panel is pressed to form a pattern, but the semi-cured panel is attached to the formwork and the backing plate. Due to the adhesion, panel defects frequently occur during demolding, which leads to a reduction in product quality and a reduction in product yield. In addition, in order to remove mortar adhering to the formwork and the backing plate, it is necessary not only to introduce new removal equipment, but also to remove the mortar repeatedly at each molding, which increases the cost of the molded product and the molded product. This also leads to a decrease in productivity.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、従来の成形
型枠が有する前記諸問題を解消し得る成形型枠を提供す
るものである。即ち、本発明の課題は、付設が簡便で優
れた脱型性と耐久性を有し、実用性に優れる成形型枠を
提供することであり、また、その型枠により意匠性に優
れ安価な軽量気泡コンクリートパネルを提供することで
ある。SUMMARY OF THE INVENTION An object of the present invention is to provide a molding form capable of solving the above-mentioned problems of the conventional molding form. That is, an object of the present invention is to provide a mold having excellent detachability and durability that is easy to attach and excellent in practicality, and the mold is excellent in design and inexpensive. It is to provide a lightweight cellular concrete panel.
【０００５】[0005]
【課題を解決するための手段】本発明者等は、前記課題
を解決するために鋭意検討を重ねた結果、成形型枠表面
に特定の樹脂層を形成させた成形型枠が前記本発明課題
を達成し得ることを見出し、本発明を完成させるに至っ
た。即ち、本発明は、 １．化粧型、対向して配置される２対の側板、底板及び
天板から成る成形型枠であって、該型枠の少なくとも内
側表面にフッ素樹脂層またはシリコーン硬化物層が付与
されて成ることを特徴とする成形型枠、 ２．前項１記載のフッ素樹脂層またはシリコーン硬化物
層を、水の接触角が８０゜以上、押圧５．０ｋｇ／ｃｍ
2 以下の成形耐久回数が１０００回以上、に構成したこ
とを特徴とする成形型枠、 ３．半硬化状軽量気泡コンクリートパネルを前項１また
は２記載の成形型枠に据え、化粧型を半硬化状軽量気泡
コンクリートパネルに押しつけて模様を付与し、次いで
脱型、硬化させて成ることを特徴とする軽量気泡コンク
リートパネル、である。The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, a molding mold having a specific resin layer formed on the surface of the molding mold has been developed. Have been achieved, and the present invention has been completed. That is, the present invention provides: A makeup mold, a molding mold comprising two pairs of side plates, a bottom plate, and a top plate which are arranged to face each other, wherein at least an inner surface of the mold is provided with a fluororesin layer or a cured silicone layer. 1. a molding mold characterized by 2. The fluororesin layer or the cured silicone layer according to the above item 1, wherein the contact angle of water is 80 ° or more, and the pressure is 5.0 kg / cm.
2. A mold having a molding durability of not more than 1,000 times of 2 or less; The semi-cured lightweight cellular concrete panel is placed on the molding form as described in 1 or 2 above, the decorative mold is pressed against the semi-cured lightweight cellular concrete panel to give a pattern, and then the mold is removed and cured. Lightweight cellular concrete panels.
【０００６】以下に本発明の詳細を説明する。本発明に
よる成形型枠は、化粧型、対向して配置される２対の側
板、底板、天板から成る。これらの側板、底板、天板
は、成形体に模様を形成させる際に、成形対象物である
成形体の化粧型を押しつける面以外の各面の形態を保持
するために用いられる。即ち、底面は成形体の底面の形
態を保持し、天板は上面を保持し、側板は同様に側面を
保持するために用いられる。成形体に模様を付与する際
に、本発明による型枠は、化粧型を底板上に予め載置
し、次いで成形体を型枠に据え、成形体を化粧型に押し
つけるように構成した型枠、または底板に成形体を載置
し、成型体の上方から化粧型を押しつけるように構成し
た型枠のいずれでも差し支えない。しかしながら、成形
体に付与する模様をより精度よく容易に制御し得ること
から、本発明では、前者のように構成した型枠をより好
ましく用い得る。The details of the present invention will be described below. The molding form according to the present invention comprises a decorative mold, two pairs of side plates, a bottom plate, and a top plate which are arranged to face each other. The side plate, the bottom plate, and the top plate are used to maintain the shape of each surface other than the surface on which the decorative mold of the molded body to be molded is pressed when forming the pattern on the molded body. That is, the bottom surface is used to hold the shape of the bottom surface of the molded body, the top plate is used to hold the top surface, and the side plates are similarly used to hold the side surfaces. When a pattern is applied to a molded body, the mold according to the present invention is configured such that a decorative mold is placed on a bottom plate in advance, the molded body is placed on the mold, and the molded body is pressed against the decorative mold. Alternatively, any of the molds configured to place the molded body on the bottom plate and press the decorative mold from above the molded body may be used. However, since the pattern given to the molded body can be easily and accurately controlled, the present invention can more preferably use the former formed as described above.
【０００７】本発明による型枠は、その少なくとも内側
表面にフッ素樹脂層またはシリコーン硬化物層が形成さ
れる。本発明における型枠の内側表面は、成型に際し成
形体と接する型枠面を意味する。前記樹脂層または硬化
物層は、型枠の全表面に形成されていても差し支えな
い。本発明におけるフッ素樹脂は、熱可塑性フッ素樹脂
または熱硬化性フッ素樹脂のいずれでもよい。熱可塑性
フッ素樹脂は、例えばポリテトラフルオロエチレンやポ
リフッ化ビニリデンなどである。また、熱硬化性フッ素
樹脂は、架橋性官能基を有するフッ素樹脂の架橋硬化体
である。本発明では熱硬化性フッ素樹脂の方がより好ま
しく用いられる。熱硬化性フッ素樹脂の中では、フルオ
ロオレフィンをベースに官能基を導入したフルオロオレ
フィン−ビニルエーテル共重合体を硬化剤で架橋硬化さ
せたものが好ましい。導入する官能基と硬化剤は、架橋
硬化が可能であれば特に限定されるものではないが、例
えば、官能基に水酸基、硬化剤にイソシアネート系硬化
剤やメラミン、または、官能基にエポキシ基、硬化剤に
アミン化合物を用いたものがより望ましい。The mold according to the present invention has a fluororesin layer or a cured silicone layer formed on at least the inner surface thereof. The inner surface of the mold in the present invention means a mold surface that is in contact with a molded body during molding. The resin layer or the cured product layer may be formed on the entire surface of the mold. The fluororesin in the present invention may be either a thermoplastic fluororesin or a thermosetting fluororesin. The thermoplastic fluororesin is, for example, polytetrafluoroethylene or polyvinylidene fluoride. Further, the thermosetting fluororesin is a crosslinked cured product of a fluororesin having a crosslinkable functional group. In the present invention, a thermosetting fluororesin is more preferably used. Among the thermosetting fluororesins, those obtained by crosslinking and curing a fluoroolefin-vinyl ether copolymer obtained by introducing a functional group based on a fluoroolefin with a curing agent are preferable. The functional group and the curing agent to be introduced are not particularly limited as long as crosslinking and curing are possible.For example, a hydroxyl group as a functional group, an isocyanate-based curing agent or melamine as a curing agent, or an epoxy group as a functional group, Those using an amine compound as the curing agent are more desirable.
【０００８】また、フルオロオレフィン−ビニルエーテ
ル共重合体としては、テトラフルオロエチレン−ビニル
エーテル共重合体、クロロトリフルオロエチレン−ビニ
ルエーテル共重合体、ビニリデンフルオライド−ビニル
エーテル共重合体などを例示することができるが、本発
明ではテトラフルオロエチレン−ビニルエーテル共重合
体が特に好ましい。また、共重合されるビニルエーテル
は、ハイドロカーボン系でもかまわないが、パーフルオ
ロアルキルビニルエーテルのほうがより好ましい。ここ
で、フルオロオレフィン−ビニルエーテル共重合体の硬
化剤としては、例えば、ヘキサメチレンジイソシアネー
ト、トリレンジイソシアネート、ジフェニルメタンジイ
ソシアネート等の単量体または、そのプレポリマーある
いはその誘導体などのイソシアネート系硬化剤やメラミ
ンなどを用いることができる。[0008] Examples of the fluoroolefin-vinyl ether copolymer include a tetrafluoroethylene-vinyl ether copolymer, a chlorotrifluoroethylene-vinyl ether copolymer, and a vinylidene fluoride-vinyl ether copolymer. In the present invention, a tetrafluoroethylene-vinyl ether copolymer is particularly preferred. Further, the vinyl ether to be copolymerized may be a hydrocarbon type, but a perfluoroalkyl vinyl ether is more preferable. Here, as a curing agent for the fluoroolefin-vinyl ether copolymer, for example, monomers such as hexamethylene diisocyanate, tolylene diisocyanate, diphenylmethane diisocyanate, or isocyanate-based curing agents such as prepolymers or derivatives thereof, and melamine Can be used.
【０００９】また、前記共重合体に含まれる架橋性官能
基の量は、官能基が水酸基である場合、本発明において
は、水酸基価１０〜１５０ｍｇ・ＫＯＨ／ｇであること
好ましく、更には４０〜８０ｍｇ・ＫＯＨ／ｇが特に好
ましい。本発明では、熱硬化性フッ素樹脂の特徴を損な
わない範囲で、フッ素系界面活性剤やフルオロシランカ
ップリング剤、熱可塑性フッ素樹脂などの微粒子、着色
顔料、成膜補助剤、成分調整剤などを添加した熱硬化性
フッ素樹脂を用いることができる。本発明におけるシリ
コーン硬化物は、シリコーンの基本骨格であるシロキサ
ン結合が三次元的に結合した構造を有するものであり、
三次元的に結合する架橋点は、シロキサン結合だけで形
成されるものだけでなく、シリコーンに含まれる有機基
が架橋点を形成したものでもよい。In the present invention, when the functional group is a hydroxyl group, the amount of the crosslinkable functional group contained in the copolymer is preferably from 10 to 150 mg · KOH / g, more preferably from 40 to 150 mg · KOH / g. -80 mg · KOH / g is particularly preferred. In the present invention, as long as the characteristics of the thermosetting fluororesin are not impaired, a fine particle such as a fluorosurfactant or a fluorosilane coupling agent, a thermoplastic fluororesin, a coloring pigment, a film-forming auxiliary, a component adjusting agent, etc. The added thermosetting fluororesin can be used. The silicone cured product in the present invention has a structure in which siloxane bonds, which are the basic skeleton of silicone, are three-dimensionally bonded,
The three-dimensionally linked cross-linking point is not limited to one formed only by a siloxane bond, but may be one in which an organic group contained in silicone forms a cross-linking point.
【００１０】本発明でのシリコーン硬化物における架橋
硬化の方法は特に限定されるものではないが、シロキサ
ン結合で架橋点を形成する方法の代表例として、多官
能性シラノール基を含有するシロキサンやシランを有機
スズ化合物などの触媒下で脱水縮合する方法、例えば、
メチルシロキサントリオールやメチルシラントリオール
の脱水縮合など、シラノール基を含有するシロキサン
に架橋剤としてシリリジン基を含有するシロキサンを混
合し、有機スズ化合物などの触媒下で脱水素縮合する方
法、例えば、メチルシロキサンジオールとメチルハイド
ロジェンシロキサンの脱水素縮合など、シラノール基
を含有するシロキサンに架橋剤として正ケイ酸エチルな
どのアルコキシシランやメトキシ、ケトオキシム、アセ
トキシなどの加水分解性有機基を含有するシランを有機
スズ化合物などの触媒と水の存在下で縮合する方法、例
えば、メチルシロキサンジオールとメチルトリアセトキ
シシランの縮合などを挙げることができ、いずれの方法
によってもよい。また、有機基が架橋点を形成する方法
の代表例としては、ビニル基を含有するシロキサンに
架橋剤としてシリリジン基を含有するシロキサンを混合
し、白金化合物などの触媒下でヒドロシリル化する方
法、例えば、ビニルメチルシロキサンとメチルハイドロ
ジェンシロキサンのヒドロキシル化など、シロキサン
やビニル基を含有するシロキサンを過酸化ベンゾイルな
どの有機過酸化物と反応させて架橋を形成する方法、例
えば、ジメチルシロキサンやビニルメチルシロキサンの
過酸化ベンゾイルによる架橋などを挙げることができ
る。これらの方法以外にも紫外線や放射線の照射により
架橋硬化させる方法もあり、いずれの方法でもよい。
尚、これらの全ての方法において原料は単量体に限らず
プレポリマーやポリマーでもかまわない。[0010] The method for crosslinking and curing of the silicone cured product in the present invention is not particularly limited. Examples of the method for forming a crosslinking point by a siloxane bond include siloxane and silane containing a polyfunctional silanol group. Method of dehydration condensation under a catalyst such as an organotin compound, for example,
A method of mixing a siloxane containing a silanol group with a siloxane containing a silylidine group as a cross-linking agent, such as dehydration condensation of methyl siloxane triol or methyl silane triol, and performing dehydrocondensation under a catalyst such as an organotin compound, for example, methyl siloxane Silanol-containing siloxane such as dehydrocondensation condensation of diol and methyl hydrogen siloxane. A method of condensing with a catalyst such as a compound in the presence of water, for example, a condensation of methylsiloxanediol and methyltriacetoxysilane, and the like, may be used. As a typical example of a method in which an organic group forms a crosslinking point, a method of mixing a siloxane having a silylidine group as a crosslinking agent with a siloxane having a vinyl group and hydrosilylating under a catalyst such as a platinum compound, for example, A method of reacting a siloxane or a siloxane containing a vinyl group with an organic peroxide such as benzoyl peroxide to form a crosslink, such as hydroxylation of vinylmethylsiloxane and methylhydrogensiloxane, for example, dimethylsiloxane or vinylmethylsiloxane Crosslinking with benzoyl peroxide. In addition to these methods, there is also a method of crosslinking and curing by irradiation with ultraviolet rays or radiation, and any of these methods may be used.
In all these methods, the raw materials are not limited to monomers, but may be prepolymers or polymers.
【００１１】本発明ではシリコーン硬化物の特徴を損な
わない範囲で、ポリエステル樹脂、アクリル樹脂、エポ
キシ樹脂、フェノール樹脂、ウレタン樹脂、メラミン樹
脂、フッ素樹脂などとの変成や熱可塑性フッ素樹脂、シ
リカ粒子、シランカップリング剤、着色顔料、成膜補助
剤、成分調整剤などを添加してもかまわない。樹脂変成
やシランカップリング剤の添加は、硬化物のひび割れ防
止や樹脂製の成形型母材との密着性向上に有効である。In the present invention, denaturation with a polyester resin, acrylic resin, epoxy resin, phenol resin, urethane resin, melamine resin, fluororesin or the like, thermoplastic fluororesin, silica particles, A silane coupling agent, a coloring pigment, a film-forming auxiliary, a component adjuster, and the like may be added. Modification of the resin and addition of the silane coupling agent are effective for preventing cracking of the cured product and improving adhesion to the resin mold base material.
【００１２】本発明における熱硬化性フッ素樹脂層また
はシリコーン硬化物層の架橋の程度は、得られた該樹脂
層の硬度に反映されるために、本発明では該樹脂層の架
橋程度を硬化物の鉛筆硬度で評価することとする。本発
明においては、鉛筆硬度がＢ〜６Ｈであることが好まし
く、２Ｈ〜５Ｈであることが特に好ましい。本発明で
は、フッ素樹脂層またはシリコーン硬化物層を、水の接
触角が８０゜以上、押圧５．０ｋｇ／ｃｍ2以下の成形
耐久回数が１０００回以上、に構成することが特に望ま
しい。即ち、成形に際して、成形体を所望する形態で損
傷させる恐れなく脱型し得るには、成形型枠の表面に形
成させた該樹脂層を水の接触角が８０゜以上であるよう
に形成させることが好ましく、特に好ましくは９０゜以
上である。また、成形型枠を繰り返し使用した後にも、
充分満足し得る成形体の脱型性及び該樹脂層の形態保持
性を得るには、前記成形耐久回数が１０００回以上であ
るように該樹脂層を構成することが好ましい。In the present invention, the degree of crosslinking of the thermosetting fluororesin layer or the cured silicone layer is reflected in the hardness of the obtained resin layer. The pencil hardness is evaluated. In the present invention, the pencil hardness is preferably from B to 6H, and particularly preferably from 2H to 5H. In the present invention, it is particularly preferable that the fluororesin layer or the cured silicone layer be formed so that the contact angle of water is 80 ° or more and the number of molding durability at a pressure of 5.0 kg / cm 2 or less is 1,000 or more. That is, at the time of molding, in order to be able to remove the molded body without damaging the molded body in a desired form, the resin layer formed on the surface of the molding mold is formed so that the contact angle of water is 80 ° or more. It is particularly preferable that the angle is 90 ° or more. Also, even after repeatedly using the molding form,
In order to obtain a sufficiently satisfactory mold release property of the molded article and shape retention property of the resin layer, it is preferable to configure the resin layer so that the number of times of molding durability is 1,000 times or more.
【００１３】本発明で成形型枠の表面にフッ素樹脂層ま
たはシリコーン硬化物層を付設する方法は、特に限定さ
れるものではなく、例えば、成形型枠表面に該樹脂で
構成されたシートを貼り付ける、成形型枠表面に該樹
脂で構成された塗膜を形成させるなどが挙げられる。ま
た、型枠表面に熱硬化性フッ素樹脂またはシリコーン硬
化物の塗膜を形成する際には、該樹脂の硬化前化合物と
架橋剤、有機溶剤を適量混合したものを、硬化する前に
ハケ塗り、スポンジ塗り、フェルト塗り、スプレー、デ
ィップ、フローコートなどで成形型枠表面に塗布し架橋
硬化させることができる。本発明で特に好ましい付設方
法は、特別な設備が必要なく、より安価で簡便に付設で
き、かつ均一な塗膜が得られる点からスプレー法であ
る。架橋硬化は２０〜１５０℃で行うことが好ましい。
より好ましくは、８０〜１２０℃で３０〜１２０分程度
加熱することである。また、使用中に付設した塗膜が摩
耗または他の理由により塗膜が剥がれなどして再付設の
必要を生じた場合には、同様の手順で再付設することが
できる。ここで、簡便に該樹脂層の塗膜を形成するため
には、取り扱い上、硬化前の該樹脂が有機溶剤に可溶で
あることが肝要となる。In the present invention, the method of providing a fluororesin layer or a cured silicone layer on the surface of the molding frame is not particularly limited. For example, a sheet made of the resin is applied to the surface of the molding frame. And forming a coating film composed of the resin on the surface of a molding frame. In addition, when forming a coating film of a thermosetting fluororesin or a cured silicone material on the surface of a mold, a mixture of an appropriate amount of a compound before curing of the resin, a crosslinking agent, and an organic solvent is brush-coated before curing. It can be applied to the surface of a molding frame by sponge coating, felt coating, spraying, dipping, flow coating, or the like, and crosslinked and cured. The spraying method is particularly preferred in the present invention, since no special equipment is required, the method can be more easily and cheaply installed, and a uniform coating film can be obtained. The cross-linking curing is preferably performed at 20 to 150 ° C.
More preferably, heating is performed at 80 to 120 ° C. for about 30 to 120 minutes. In the case where the coating applied during use is worn out or the coating is peeled off due to other reasons and the necessity of re-installation arises, it can be re-installed in the same procedure. Here, in order to easily form a coating film of the resin layer, it is important in handling that the resin before curing is soluble in an organic solvent.
【００１４】本発明における該樹脂層の型枠表面への塗
布量は、特に制限されるものではないが、５０〜５００
ｇ／ｍ2 に付与させることが望ましい。特に望ましくは
１００〜３００ｇ／ｍ2 である。該樹脂層が５０ｇ／ｍ
2 未満の時は、実用上の前記成形耐久回数を欠く恐れが
あり、また５００ｇ／ｍ2 超の付与量は、型枠表面の型
枠費用を必要以上に高くする可能性がある。上述のよう
に本発明では、成形型枠に非常に簡便でかつ均一に該樹
脂層を付設することができる。In the present invention, the amount of the resin layer to be applied to the surface of the mold is not particularly limited, but is preferably 50 to 500.
g / m 2 . Particularly preferred is 100 to 300 g / m 2 . 50 g / m of the resin layer
When it is less than 2, there is a possibility that the practical number of times of molding durability may be lost, and if the amount is more than 500 g / m 2 , there is a possibility that the cost of the mold on the surface of the mold is unnecessarily high. As described above, according to the present invention, the resin layer can be very easily and uniformly attached to the molding die.
【００１５】本発明での成形型枠の材質は、成形体面を
保持することができる強度と耐久性を有するものであれ
ば特に限定されるものではなく、例えば、鉄鋼、ステン
レス、アルミ、硬質プラスチック、硬質ゴムなどを使用
することができる。本発明における化粧型は、模様を転
写することができる強度を有するものであれば材質、形
状、大きさなどは特に限定されるものではなく、例え
ば、ゴムや樹脂、金属などを使用することができる。本
発明においてより好ましく用い得る化粧型は、ウレタン
や鉄鋼、ステンレス、アルミニウムなどである。The material of the molding frame in the present invention is not particularly limited as long as it has strength and durability capable of holding the surface of the molded body. Examples thereof include steel, stainless steel, aluminum, and hard plastic. , Hard rubber or the like can be used. Material, shape, size, etc. are not particularly limited as long as the makeup mold in the present invention has a strength capable of transferring a pattern.For example, rubber, resin, metal, or the like may be used. it can. Cosmetic molds that can be more preferably used in the present invention include urethane, iron and steel, stainless steel, and aluminum.
【００１６】本発明による成形型枠を用いて好適に成形
し得る無機系成形体は、軽量気泡コンクリートパネルで
ある。軽量気泡コンクリートパネルを構成するものは、
一般に軽量気泡コンクリートに使用されているものであ
れば特に限定されるものではなく、例えば、珪石やセメ
ント類、生石灰、水を主原料として石膏や解砕屑、気泡
剤などを使用することができるが、補強用鉄筋もしくは
金網が埋設されているものが好ましい。また、長さや
幅、厚さは特に限定されるものではなく、その硬さもハ
ンドリングが可能で、押しつけ圧力において半硬化状軽
量気泡コンクリートパネルが可塑性を示すように設定す
ればよいが、更には、ＪＩＳＡ５４１６に準拠した強度
試験測定法において０．６〜５．０ｋｇ／ｃｍ2 の強度
を有するものであることが特に好ましい。本発明による
成形型枠は模様付き軽量気泡コンクリートパネルを得る
のに好適である。本発明は模様を形成させる方法を特に
限定するものではなく、例えば模様付き成形型に半硬化
状軽量気泡コンクリートパネルを押しつけるなどの通常
の方法によって差し支えない。The inorganic molded article which can be suitably molded using the molding frame according to the present invention is a lightweight cellular concrete panel. The components that make up lightweight aerated concrete panels are:
It is not particularly limited as long as it is generally used for lightweight cellular concrete, and for example, gypsum and crushed debris, foaming agent and the like can be used with silica stone, cements, quicklime, and water as main raw materials. It is preferable that reinforcing steel or wire mesh is buried. In addition, the length, width, and thickness are not particularly limited, and the hardness can be handled, and the semi-cured lightweight cellular concrete panel may be set so as to exhibit plasticity at a pressing pressure. It is particularly preferable that the material has a strength of 0.6 to 5.0 kg / cm 2 in a strength test measurement method based on JIS A5416. The molding form according to the invention is suitable for obtaining patterned lightweight cellular concrete panels. The present invention does not particularly limit the method of forming the pattern, and may be any conventional method such as pressing a semi-cured lightweight cellular concrete panel against a patterned mold.
【００１７】[0017]
【発明の実施の形態】以下に実施例を挙げ、本発明をよ
り具体的に説明する。以下の実施例においては、無機系
成形体が軽量気泡コンクリートパネルである場合につい
て説明する。尚、本発明における水の接触角、成形耐久
回数は次のように測定した。 １．水の接触角 温度２０℃、湿度６５％の条件下で協和界面科学株式会
社製の接触角計（ＤＡ−Ｄ）により測定した。 ２．成形耐久回数 押圧５．０ｋｇ／ｃｍ2 以下で長さ１００、幅１００、
厚さ５０ｍｍのモデル半硬化状軽量気泡コンクリートパ
ネルをモルタル除去作業なしに繰り返し成形した時に脱
型性が確保できなくなり、半硬化状軽量気泡コンクリー
トパネルに欠損を生じ始めるまでの成形回数とする。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described more specifically with reference to the following examples. In the following examples, the case where the inorganic molded body is a lightweight cellular concrete panel will be described. Incidentally, the contact angle of water and the number of times of molding durability in the present invention were measured as follows. 1. Water contact angle Measured with a contact angle meter (DA-D) manufactured by Kyowa Interface Science Co., Ltd. under the conditions of a temperature of 20 ° C. and a humidity of 65%. 2. Number of times of molding durability Pressing 5.0 kg / cm 2 or less, length 100, width 100,
When a model semi-cured lightweight cellular concrete panel having a thickness of 50 mm is repeatedly molded without mortar removing operation, the mold release property cannot be secured, and the number of moldings until the semi-cured lightweight cellular concrete panel starts to be broken.
【００１８】[0018]
【実施例１】成形型枠は、模様付けする面以外の各面の
表面にポリテトラフルオロエチレンシートを貼り付けた
ステンレス製のものを使用した。本実施例における成形
型枠の水の接触角は、１００〜１１０゜であった。次
に、軽量気泡コンクリートパネルは、珪石５３重量部、
生石灰７．５重量部、セメント３７重量部、乾燥石膏
２．５重量部、これら固形分１００重量部に対して水６
８重量部、アルミ粉末０．０６重量部を混合したモルタ
ルスラリーを型枠に注入した後、養生してできた半硬化
状の軽量気泡モルタルブロックをピアノ線で切断して長
さ２０００×幅６１０×厚さ５０ｍｍの半硬化状軽量気
泡コンクリートパネルとし、このパネルを化粧型の上に
載置し、該成形型枠で半硬化状軽量気泡コンクリートパ
ネルを拘束し１０ｍｍ押しつけた後脱型し、オートクレ
ーブ養生する方法で製造した。尚、押しつけ時のモルタ
ル硬度はＪＩＳＡ５４１６に準拠した方法で測定すると
１．５ｋｇ／ｃｍ2 であった。EXAMPLE 1 A stainless steel mold having a polytetrafluoroethylene sheet adhered to each surface other than the surface to be patterned was used. The contact angle of water of the mold in this embodiment was 100 to 110 °. Next, the lightweight cellular concrete panel is 53 parts by weight of silica stone,
7.5 parts by weight of quicklime, 37 parts by weight of cement, 2.5 parts by weight of dry gypsum, and 100 parts by weight of these solids
A mortar slurry in which 8 parts by weight and 0.06 parts by weight of aluminum powder are mixed is poured into a mold, and the cured semi-cured lightweight cellular mortar block is cut with a piano wire to a length of 2,000 × width 610. X A semi-cured lightweight cellular concrete panel having a thickness of 50 mm was placed on a decorative mold, and the semi-cured lightweight cellular concrete panel was restrained by the forming mold, pressed 10 mm, and then released from the mold. Manufactured by curing method. The mortar hardness at the time of pressing was 1.5 kg / cm 2 when measured by a method based on JIS A5416.
【００１９】本実施例における前記軽量気泡コンクリー
トパネルの脱型性は良好で、得られた模様付き軽量気泡
コンクリートパネルは、亀裂や欠け等の欠損は認められ
ず、かつ模様が鮮明に転写されていた。また、成形型枠
にもモルタル付着はなく、モルタル除去作業なしに繰り
返し成形が可能であった。別途モデル成形体による成形
で、３０００回押しつけ後も同様の脱型性を保持してい
たことから３０００回以上の成形耐久回数を有すること
が確認された。The light-weight cellular concrete panel of the present embodiment has good removability, and the obtained lightweight cellular concrete panel with a pattern has no cracks, chips or other defects, and the pattern is clearly transferred. Was. Moreover, there was no mortar adhered to the molding frame, and the molding could be repeated without mortar removal. Separately, the same mold releasability was maintained even after pressing 3,000 times by molding with a model molded body, and thus it was confirmed that the molding had a molding durability of 3000 times or more.
【００２０】[0020]
【実施例２】成形型枠は、模様付けする面以外の各面の
表面に熱硬化性フッ素樹脂を付設したステンレス製のも
のを使用した。ここで熱硬化性フッ素樹脂は、水酸基価
６０ｍｇ・ＫＯＨ／ｇの水酸基を導入したテトラフルオ
ロエチレン−パーフルオロアルキルビニルエーテル共重
合体８０重量部とイソシアネート基２１重量％を含有す
るヘキサメチレンジアミン系硬化剤１８重量部、フッ素
系界面活性剤２重量部、これら有効樹脂成分１００重量
部に対して希釈剤としてメチルエチルケトン１５０重量
部を混合したものを有効樹脂成分が約１００ｇ／ｍ2 に
なるようにハケ塗りした後、すみやかに架橋硬化を完了
させるため８０゜で約６０分加熱して付設し、実施例１
と同様にして半硬化状軽量気泡コンクリートパネルに模
様付けを行った。尚、ここで付設した該熱硬化性フッ素
樹脂層の厚みは、実施例１とほぼ同じであった。本実施
例による成形型枠の水の接触角は、１１０〜１１５゜で
あった。Example 2 A mold made of stainless steel having a thermosetting fluororesin attached to the surface of each surface other than the surface to be patterned was used. The thermosetting fluororesin is a hexamethylenediamine-based curing agent containing 80 parts by weight of a tetrafluoroethylene-perfluoroalkylvinylether copolymer having a hydroxyl value of 60 mg · KOH / g and 21% by weight of isocyanate groups. 18 parts by weight, 2 parts by weight of a fluorinated surfactant, and 100 parts by weight of these active resin components mixed with 150 parts by weight of methyl ethyl ketone as a diluent are brush-coated so that the effective resin component becomes about 100 g / m 2. After that, the mixture was heated at 80 ° C. for about 60 minutes to complete the crosslinking and curing promptly.
The semi-cured lightweight cellular concrete panel was patterned in the same manner as described above. The thickness of the thermosetting fluororesin layer attached here was almost the same as that of Example 1. The contact angle of water of the mold according to the present embodiment was 110 to 115 °.
【００２１】また、本実施例による成形型枠は、脱型性
が良好で得られた模様付き軽量気泡コンクリートパネル
は、亀裂や欠け等の欠損はなく、かつ模様を鮮明に写し
ていた。また、成形型枠にもモルタル付着はなく、モル
タル除去作業なしに繰り返し成形が可能であった。別途
モデル成形体による成形で、５０００回押しつけ後も同
様の脱型性を保持していたことから５０００回以上の成
形耐久回数を有することが確認された。Further, in the molded formwork according to the present embodiment, the lightweight lightweight cellular concrete panel with good removability obtained was free from cracks, chips and other defects, and the pattern was clearly reproduced. Moreover, there was no mortar adhered to the molding frame, and the molding could be repeated without mortar removal. Separately, the same mold releasability was maintained even after pressing 5,000 times by molding using a model molded body. Thus, it was confirmed that the molded article had 5,000 or more molding durability times.
【００２２】[0022]
【実施例３】成形型枠は、模様付けする面以外の各面の
表面にシリコーン硬化物を付設したステンレス製のもの
を使用した。ここでシリコーン硬化物は、メチルシロキ
サンジオール３０重量部メチルシロキサントリオール６
４重量部とジブチルスズジラウレート６重量部、これら
有効成分１００重量部に対して希釈剤としてイソプロピ
ルアルコール１００重量部を混合したものを有効樹脂成
分が約１００ｇ／ｍ2になるようにハケ塗りした後、す
みやかに架橋硬化を完了させるため１５０゜で約６０分
加熱して付設し、実施例１と同様にして半硬化状軽量気
泡コンクリートパネルに模様付けを行った。尚、ここで
付設した該シリコーン硬化物層の厚みは、実施例１とほ
ぼ同じであった。本実施例による成形型枠の水の接触角
は、９０〜１００゜であった。Example 3 A mold made of stainless steel having a silicone cured product attached to the surface of each surface other than the surface to be patterned was used. Here, the silicone cured product is methylsiloxane diol 30 parts by weight methylsiloxane triol 6
4 parts by weight, 6 parts by weight of dibutyltin dilaurate, and 100 parts by weight of these active ingredients mixed with 100 parts by weight of isopropyl alcohol as a diluent are brush-stripped so that the effective resin component becomes about 100 g / m 2 . Heating was applied at 150 ° for about 60 minutes in order to quickly complete the crosslinking and curing, and the semi-cured lightweight cellular concrete panel was patterned in the same manner as in Example 1. The thickness of the silicone cured product layer provided here was almost the same as that of Example 1. The contact angle of water of the mold according to the present embodiment was 90 to 100 °.
【００２３】また、本実施例による成形型枠は、脱型性
が良好で得られた模様付き軽量気泡コンクリートパネル
は、亀裂や欠け等の欠損はなく、かつ模様を鮮明に写し
ていた。また、成形型枠にもモルタル付着はなく、モル
タル除去作業なしに繰り返し成形が可能であった。別途
モデル成形体による成形で、４０００回押しつけ後も同
様の脱型性を保持していたことから４０００回以上の成
形耐久回数を有することが確認された。Further, in the molded formwork according to the present embodiment, the light-weight cellular concrete panel with a pattern obtained with good removability had no defects such as cracks and chips, and clearly showed the pattern. Moreover, there was no mortar adhered to the molding frame, and the molding could be repeated without mortar removal. Separately, the same mold releasability was maintained even after pressing 4,000 times by molding with a model molded body, and it was confirmed that the molding had a molding durability of 4,000 times or more.
【００２４】[0024]
【比較例１】成形型枠は、ステンレス製のものを使用
し、その他は実施例１と全く同様にして半硬化状軽量気
泡コンクリートパネルに模様付けを行った。ここで、該
成形型の水の接触角は、５５〜６５゜であった。押しつ
け後、該成形型枠は、脱型性が極めて悪く得られた軽量
気泡コンクリートパネルは、型枠と接しているパネル端
部で欠損が発生し、型枠にもモルタルが多量に付着して
いた。また、該成形型枠は、モルタル除去作業なしには
次のパネルへの模様付けを行うことはできなかった。Comparative Example 1 A semi-cured lightweight cellular concrete panel was patterned in the same manner as in Example 1, except that a stainless steel mold was used. Here, the contact angle of water of the mold was 55 to 65 °. After pressing, the molded form has a very poor mold release property, and the obtained lightweight cellular concrete panel has a defect at a panel end in contact with the form, and a large amount of mortar adheres to the form. Was. Also, the molding frame could not be patterned on the next panel without the mortar removal operation.
【００２５】[0025]
【比較例２】成形型枠は、鉱物油系の離型剤を塗布した
ステンレス製のものを使用し、その他は実施例１と全く
同様にして半硬化状軽量気泡コンクリートパネルに模様
付けを行った。ここで、該成形型の水の接触角は、７０
〜８０゜であった。押しつけ後、該成形型枠は、脱型性
が悪く得られた軽量気泡コンクリートパネルは、型枠と
接しているパネル端部で僅かな欠損が発生し、型枠にも
モルタルが少量付着していた。また、該成形型枠は、モ
ルタル除去作業なしには次のパネルへの模様付けを行う
ことはできなかった。Comparative Example 2 A semi-cured lightweight cellular concrete panel was patterned in the same manner as in Example 1 except that a stainless steel mold to which a mold release agent of mineral oil was applied was used. Was. Here, the water contact angle of the mold is 70
It was ~ 80 °. After pressing, the molded formwork has a poor mold release property, and the obtained lightweight cellular concrete panel has a slight breakage at the panel end in contact with the formwork, and a small amount of mortar adheres to the formwork. Was. Also, the molding frame could not be patterned on the next panel without the mortar removal operation.
【００２６】[0026]
【発明の効果】本発明は、以上において詳述したように
全く新しい技術であるので、次のような顕著な効果を有
する。 １．本発明において成形型枠に付設するフッ素樹脂また
はシリコーン硬化物は、簡便で均一にかつ安価に付設す
ることができる。 ２．また、該樹脂層の構成成分は所望により変化させ得
るので、前記樹脂層の特性の調整が容易であり、型枠を
必要に応じて高性能化できる。 ３．更に、型枠材質も特別に高価なものに限定されるこ
とがなく、型枠に所望の機械的特性を有していて安価な
例えば、樹脂等も用いることができる。 ４．本発明による成形型枠は、成形型枠表面に水の接触
角が８０゜以上、成形耐久回数が１０００回以上の前記
樹脂層を構成させ得るので、成形体の脱型性に極めて優
れ、かつその優れた脱型性の保持率、即ち成形耐久性に
極めて優れる。 ５．本発明による成形型枠を用いると、所望する形態が
正確に付与されかつ損傷の非常に少ない優れた軽量気泡
コンクリートパネルを得ることができる。Since the present invention is a completely new technology as described in detail above, it has the following remarkable effects. 1. In the present invention, the fluororesin or the silicone cured product attached to the molding die can be attached simply, uniformly, and inexpensively. 2. Further, since the constituent components of the resin layer can be changed as desired, the characteristics of the resin layer can be easily adjusted, and the performance of the mold can be improved as required. 3. Furthermore, the material of the mold is not particularly limited to expensive ones. For example, an inexpensive resin having desired mechanical properties for the mold can be used. 4. The molding die according to the present invention can form the resin layer having a contact angle of water of 80 ° or more on the surface of the molding die and a molding durability of 1,000 times or more. The retention rate of the excellent releasability, that is, the molding durability is extremely excellent. 5. By using the molding form according to the present invention, it is possible to obtain an excellent lightweight cellular concrete panel in which a desired form is accurately given and the damage is extremely small.
Claims (3)
板、底板及び天板から成る成形型枠であって、該型枠の
少なくとも内側表面にフッ素樹脂層またはシリコーン硬
化物層が付与されて成ることを特徴とする成形型枠。1. A molded mold comprising a decorative mold, two pairs of side plates, a bottom plate and a top plate which are arranged opposite to each other, wherein a fluororesin layer or a cured silicone layer is provided on at least the inner surface of the mold. A molding form characterized by being formed.
コーン硬化物層を、水の接触角が８０゜以上、押圧５．
０ｋｇ／ｃｍ2 以下の成形耐久回数が１０００回以上、
に構成したことを特徴とする成形型枠。2. Pressing the fluororesin layer or the cured silicone layer according to claim 1 with a contact angle of water of 80 ° or more.
The molding durability of 0 kg / cm 2 or less is 1,000 times or more
A molding formwork characterized in that:
請求項１または２記載の成形型枠に据え、化粧型を半硬
化状軽量気泡コンクリートパネルに押しつけて模様を付
与し、次いで脱型、硬化させて成ることを特徴とする軽
量気泡コンクリートパネル。3. A semi-cured lightweight cellular concrete panel is placed on the molding form according to claim 1 or 2, and the decorative mold is pressed against the semi-cured lightweight cellular concrete panel to give a pattern, and then is released and cured. A lightweight cellular concrete panel characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09138398A JP4067168B2 (en) | 1998-04-03 | 1998-04-03 | Method for producing lightweight lightweight concrete panel with pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09138398A JP4067168B2 (en) | 1998-04-03 | 1998-04-03 | Method for producing lightweight lightweight concrete panel with pattern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11286006A true JPH11286006A (en) | 1999-10-19 |
| JP4067168B2 JP4067168B2 (en) | 2008-03-26 |
Family
ID=14024858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09138398A Expired - Lifetime JP4067168B2 (en) | 1998-04-03 | 1998-04-03 | Method for producing lightweight lightweight concrete panel with pattern |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4067168B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010211137A (en) * | 2009-03-12 | 2010-09-24 | Canon Inc | Method for manufacturing of elastic roller for electrophotography |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010030241A1 (en) * | 2010-06-17 | 2011-12-22 | Bfs Betonfertigteilesysteme Gmbh | Process for producing a negative mold for the production of concrete elements |
-
1998
- 1998-04-03 JP JP09138398A patent/JP4067168B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010211137A (en) * | 2009-03-12 | 2010-09-24 | Canon Inc | Method for manufacturing of elastic roller for electrophotography |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4067168B2 (en) | 2008-03-26 |
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