JP2000317923A - Manufacture of cement molding plate having protrusion and recess pattern - Google Patents
Manufacture of cement molding plate having protrusion and recess patternInfo
- Publication number
- JP2000317923A JP2000317923A JP11132517A JP13251799A JP2000317923A JP 2000317923 A JP2000317923 A JP 2000317923A JP 11132517 A JP11132517 A JP 11132517A JP 13251799 A JP13251799 A JP 13251799A JP 2000317923 A JP2000317923 A JP 2000317923A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- plate
- protrusion
- roll
- recess pattern
- 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
Links
- 239000004568 cement Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000000465 moulding Methods 0.000 title abstract description 8
- 238000004049 embossing Methods 0.000 claims abstract description 16
- 239000000839 emulsion Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000012778 molding material Substances 0.000 abstract description 9
- 238000001125 extrusion Methods 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 3
- 230000009974 thixotropic effect Effects 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、セメント系押出成
形板の表面に精度良く凹凸模様を形成する方法に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for accurately forming an uneven pattern on the surface of a cement-based extruded plate.
【０００２】[0002]
【従来の技術】従来からセメント系成形板は、優れた耐
火性、防火性や機械的性質を有していて、しかも安価に
入手できることから床材、外壁材、内壁材、間仕切り等
の建築・建築用途に大量に使用されている。また、この
セメント系成形板を外壁材等に使用する場合は、その意
匠性、美観等を向上させるために、表面に凹凸模様を付
与したものが多用されている。2. Description of the Related Art Conventionally, cement-based molded plates have excellent fire resistance, fire resistance and mechanical properties, and can be obtained at low cost. Used in large quantities for architectural purposes. Further, when this cement-based molded plate is used for an outer wall material or the like, in order to improve its design property, aesthetic appearance, etc., those having a surface with an uneven pattern are often used.
【０００３】凹凸模様を有するセメント系成形板は、例
えば、凹凸模様を付した金型を用いるプレス成形や注型
成形、或いは押出成形機のダイス内部に配したエンボス
ロールを用いる方法等が知られているが、プレス成形や
注型成形の場合は、バッチ生産となることから、最近で
は押出成形機のダイス内部に配したエンボスロールを用
いる方法で製造されることが多い。[0003] A cement-based molded plate having an uneven pattern is known, for example, by press molding or casting using a mold having an uneven pattern, or by a method using an embossing roll arranged inside a die of an extruder. However, in the case of press molding or cast molding, since batch production is performed, recently, it is often manufactured by a method using an embossing roll arranged inside a die of an extruder.
【０００４】しかしながら、この方法を、セメント、水
及び油性物質からなるセメント含有逆エマルジョン組成
物をセメント系成形材料として使用する場合に適用した
場合には以下のような問題があった。すなわち、通常の
押出成形セメント板の製造に用いられるセメントと水の
スラリーに骨材、混和剤や各種添加剤を混合したセメン
ト系成形材料はかなり粘性が高く、約２０ｋｇ／ｃｍ２
以上の押出圧力を必要とするのに対して、セメント含有
逆エマルジョン組成物は、２ｋｇ／ｃｍ２以下の圧力で
押出成形が可能であり、しかもチクソトロピー性を有し
ていることから、一旦エンボスロールによって凹凸模様
が形成されても、その後の僅かな圧力で変形してしまい
易いことからシャープで、意匠性の高い凹凸模様を正確
に形成することが極めて困難であった。However, when this method is applied to the case where a cement-containing inverse emulsion composition comprising cement, water and an oily substance is used as a cement-based molding material, there are the following problems. That is, a cement-based molding material obtained by mixing an aggregate, an admixture, and various additives with a slurry of cement and water used in the production of a normal extruded cement board has a considerably high viscosity of about 20 kg / cm 2.
While the above extrusion pressure is required, the cement-containing inverse emulsion composition can be extruded at a pressure of 2 kg / cm 2 or less and has thixotropic properties. Therefore, it is extremely difficult to accurately form a sharp, highly designable concavo-convex pattern because even if a concavo-convex pattern is formed, it is easily deformed by a slight pressure thereafter.
【０００５】一方、一旦板状にセメント系成形板を押出
成形し、次いでエンボスロールを用いて凹凸模様を形成
する方法もあるが、押出成形板を押圧した際に、押圧さ
れた部分が流動して押圧されていない、すなわち、両側
端部に移動するため、正確な凹凸模様の形成が困難であ
るばかりでなく、大量のロスが発生することを覚悟する
必要があった。特に、セメント、水及び油性物質からな
るセメント含有逆エマルジョン組成物のようにチクソト
ロピー性を有するセメント系成形材料を使用した場合に
はその傾向が顕著であった。On the other hand, there is a method in which a cement-based molded plate is once extruded into a plate shape, and then an embossed roll is used to form an uneven pattern. However, when the extruded plate is pressed, the pressed portion flows. Since it is not pressed, that is, it moves to both side ends, it is necessary not only to form an accurate uneven pattern, but also to take into account that a large amount of loss occurs. In particular, when a cement-based molding material having thixotropic properties, such as a cement-containing inverse emulsion composition composed of cement, water and an oily substance, was used, the tendency was remarkable.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、上述した問
題を解決して、チクソトロピー性を有する押出成形板で
あっても、正確に凹凸模様が形成でき、しかもロスの発
生の少ないセメント系成形板の製造法を提供することを
目的とする。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems, and is capable of accurately forming a concavo-convex pattern even with an extruded plate having thixotropic properties, and further reducing cement-based molding. It is intended to provide a method for manufacturing a board.
【０００７】[0007]
【課題を解決するための手段】本発明者等は鋭意検討し
た結果、エンボスロールの両側部にガイド板を装着し
て、押出成形板を押圧した際に、セメント系成形材料が
流動することを防止すれば上記問題が解決しうることを
見いだし本発明に到った。すなわち、本発明は、パレッ
ト上に載置したセメント、水及び油性物質からなるセメ
ント含有逆エマルジョン組成物を押出成形してなる板状
の押出成形板を、両側部にロールの表面から５ｍｍ以上
はみ出すようにガイド板が装着されたエンボスロールで
押圧することを特徴とするセメント系成形板の製造法を
その要旨とするものである。Means for Solving the Problems As a result of diligent studies, the present inventors have found that a cement-based molding material flows when a guide plate is mounted on both sides of an embossing roll and an extruded plate is pressed. The inventors have found that the above problem can be solved if prevention is made, and have reached the present invention. That is, according to the present invention, a plate-shaped extruded plate formed by extruding a cement-containing inverse emulsion composition composed of cement, water, and an oily substance placed on a pallet is protruded on both sides by 5 mm or more from the surface of the roll. A method of manufacturing a cement-based formed plate characterized in that pressing is performed by an embossing roll on which a guide plate is mounted as described above.
【０００８】[0008]
【実施の形態】本発明の実施の形態を説明する。本発明
においては、セメント系成形材料としてセメント、水及
び油性物質からなるセメント含有逆エマルジョン組成物
を使用する。セメント含有逆エマルジョン組成物におけ
る、セメントとしては、例えば、ポルトランドセメン
ト、アルミナセメント、ハイアルミナセメント、シリカ
ヒューム、高炉スラグ、フライアッシュ等の各種セメン
ト等の水硬性材料が挙げられる。また、油性物質として
は、水と逆エマルジョンを形成しうるものであれば特に
制限はないが、分子中に重合性二重結合を有するスチレ
ン、ジビニルベンゼン、（メタ）アクリル酸エステル等
の重合性モノマーを使用するのが好ましい。Embodiments of the present invention will be described. In the present invention, a cement-containing inverse emulsion composition comprising cement, water and an oily substance is used as a cement-based molding material. Examples of the cement in the cement-containing inverse emulsion composition include hydraulic materials such as various cements such as Portland cement, alumina cement, high alumina cement, silica fume, blast furnace slag, and fly ash. The oily substance is not particularly limited as long as it can form an inverse emulsion with water. However, polymerizable substances such as styrene, divinylbenzene, and (meth) acrylate having a polymerizable double bond in the molecule can be used. It is preferred to use monomers.
【０００９】このようなセメント含有逆エマルジョン組
成物は、例えば、特開平１−１７６２５８号公報等に記
載の方法で容易に製造することができる。このセメント
含有逆エマルジョン組成物は、油性物質からなる連続相
の中に、微細な水滴が分散した構造を有するものであ
り、外力を加えると容易に流動するが、外力を取り除く
と流動しないというチクソトロピー性があるので、極め
て低い圧力で押出成形できるという特徴を有している。Such a cement-containing inverse emulsion composition can be easily produced, for example, by the method described in JP-A-1-176258. This cement-containing inverse emulsion composition has a structure in which fine water droplets are dispersed in a continuous phase composed of an oily substance, and easily flows when an external force is applied, but does not flow when the external force is removed. It has the characteristic that it can be extruded at an extremely low pressure.
【００１０】さて、本発明においては、上述したセメン
ト含有逆エマルジョン組成物を板状に押出成形し、得ら
れた板状の押出成形板をパレット上に受け取った後、エ
ンボスロールで押圧して当該押出成形板の表面に凹凸模
様を付与し、次いで養生硬化させてセメント系成形板を
得るのである。その際、エンボスロール１として、図１
に示すように、両側部１１にロール表面１２から５ｍｍ
以上はみ出すようにガイド板１３が装着されている必要
がある。ガイド板の形状は円形であって、当該エンボス
ロールの表面から５ｍｍ以上はみ出す、すなわち、エン
ボスロールよりも５ｍｍ以上直径の大きいものを使用す
る必要がある。このはみ出しが５ｍｍ以下では、セメン
ト系成形材料の流動を防止するのに不充分であり、ま
た、はみ出しが押出成形板の厚み以上になるとガイド板
１３がパレットに当たってエンボスロールの回転の邪魔
になるので好ましくない。[0010] In the present invention, the above-mentioned cement-containing inverse emulsion composition is extruded into a plate shape, and the obtained plate-shaped extruded plate is received on a pallet and then pressed by an embossing roll. The surface of the extruded plate is provided with an uneven pattern and then cured and cured to obtain a cement-based formed plate. At this time, the embossing roll 1 is used as shown in FIG.
As shown in FIG.
The guide plate 13 needs to be mounted so as to protrude. The shape of the guide plate is circular, and it is necessary to use a guide plate protruding 5 mm or more from the surface of the embossing roll, that is, having a diameter of 5 mm or more than the embossing roll. If the protrusion is less than 5 mm, it is insufficient to prevent the flow of the cement-based molding material. If the protrusion exceeds the thickness of the extruded plate, the guide plate 13 hits the pallet and hinders the rotation of the embossing roll. Not preferred.
【００１１】本発明においては、押出成形板の表面をエ
ンボスロールで押圧した際に、両側端部に流れるセメン
ト系成形材料をガイド板で抑えているため、セメント系
成形材料の不足に起因する不正確な凹凸模様の形成や、
大量のロスの発生が防止できるので、正確な凹凸模様の
形成が可能となり、また、ロスを軽減することが可能と
なる。図２は、ガイド板を装着していない従来のエンボ
スロールで押圧した場合の得られる製品の側端部付近の
一部切欠断面図であり、図３は、本発明の方法で得られ
る製品の側端部付近の一部切欠断面図である。In the present invention, when the surface of the extruded molding plate is pressed by the embossing roll, the cement-based molding material flowing to both ends is suppressed by the guide plate. The formation of accurate uneven patterns,
Since the occurrence of a large amount of loss can be prevented, it is possible to form an accurate concavo-convex pattern, and it is possible to reduce the loss. FIG. 2 is a partially cutaway cross-sectional view showing the vicinity of a side end of a product obtained when pressed by a conventional embossing roll without a guide plate, and FIG. 3 is a view of a product obtained by the method of the present invention. It is a partially cutaway sectional view near the side end.
【００１２】[0012]
【発明の効果】本発明の方法によって、従来、困難であ
るとされていたセメント含有逆エマルジョン組成物を押
出成形して、意匠性と深みに優れ、正確に凹凸模様が形
成されたセメント系成形板を製造することが可能とな
り、外壁材その他の高い意匠性が要求される用途におい
ても使用することが可能となった。According to the method of the present invention, a cement-containing inverse emulsion composition, which has been considered to be difficult in the past, is extruded to obtain a cement-based molding excellent in design and depth, and in which an uneven pattern is accurately formed. It has become possible to manufacture boards, and it has become possible to use them in outer wall materials and other applications requiring high designability.
【図１】本発明で使用するエンボスロールの一例を示す
説明斜視図である。FIG. 1 is an explanatory perspective view showing an example of an embossing roll used in the present invention.
【図２】ガイド板を装着していない従来のエンボスロー
ルで押圧した場合の得られる製品の側端部付近の一部切
欠断面図である。FIG. 2 is a partially cut-away cross-sectional view near a side end of a product obtained when pressed by a conventional embossing roll without a guide plate.
【図３】本発明の方法で得られる製品の側端部付近の一
部切欠断面図である。FIG. 3 is a partially cutaway sectional view near a side end of a product obtained by the method of the present invention.
１ エンボスロール １１ 両側部 １２ ロール表面 １３ ガイド板 DESCRIPTION OF SYMBOLS 1 Emboss roll 11 Both sides 12 Roll surface 13 Guide plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 吉田 繁夫 大阪府豊中市新千里西町１丁目１番４号 ナショナル住宅産業株式会社内 (72)発明者 北川 聡 大阪府豊中市新千里西町１丁目１番４号 ナショナル住宅産業株式会社内 Ｆターム(参考） 4G054 AA01 AC04 BD00 4G055 AA01 AB03 AC01 BA47 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shigeo Yoshida 1-1-4 Shinsenri Nishimachi, Toyonaka City, Osaka Prefecture Inside the National Housing Industry Co., Ltd. (72) Inventor Satoshi Kitagawa 1-1-1, Shinsenri Nishimachi, Toyonaka City, Osaka Prefecture No. 4 F-term in National Housing Industry Co., Ltd. (reference) 4G054 AA01 AC04 BD00 4G055 AA01 AB03 AC01 BA47
Claims (1)
性物質からなるセメント含有逆エマルジョン組成物を押
出成形してなる板状の押出成形板を、両側部にロールの
表面から５ｍｍ以上はみ出すようにガイド板が装着され
たエンボスロールで押圧することを特徴とするセメント
系成形板の製造法。1. A plate-shaped extruded plate formed by extruding a cement-containing inverse emulsion composition comprising a cement, water and an oily substance placed on a pallet, and protruding from the surface of the roll by 5 mm or more on both sides. A method for producing a cement-based formed plate, wherein the plate is pressed by an embossing roll having a guide plate mounted thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11132517A JP2000317923A (en) | 1999-05-13 | 1999-05-13 | Manufacture of cement molding plate having protrusion and recess pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11132517A JP2000317923A (en) | 1999-05-13 | 1999-05-13 | Manufacture of cement molding plate having protrusion and recess pattern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000317923A true JP2000317923A (en) | 2000-11-21 |
Family
ID=15083186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11132517A Pending JP2000317923A (en) | 1999-05-13 | 1999-05-13 | Manufacture of cement molding plate having protrusion and recess pattern |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000317923A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI382910B (en) * | 2008-03-31 | 2013-01-21 | Nichiha Co Ltd | Manufacture of woody cement board |
-
1999
- 1999-05-13 JP JP11132517A patent/JP2000317923A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI382910B (en) * | 2008-03-31 | 2013-01-21 | Nichiha Co Ltd | Manufacture of woody cement board |
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