JP2009185445A - Fire resistive covering material and its manufacturing method - Google Patents

Fire resistive covering material and its manufacturing method Download PDF

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JP2009185445A
JP2009185445A JP2008022991A JP2008022991A JP2009185445A JP 2009185445 A JP2009185445 A JP 2009185445A JP 2008022991 A JP2008022991 A JP 2008022991A JP 2008022991 A JP2008022991 A JP 2008022991A JP 2009185445 A JP2009185445 A JP 2009185445A
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sheet
slurry
fireproof
fibers
refractory
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Takashi Matsuo
隆士 松尾
Tadashi Ono
正 小野
Yukiyasu Uchida
幸泰 打田
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TANAKA SEISHI KOGYO KK
Shimizu Construction Co Ltd
Shimizu Corp
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TANAKA SEISHI KOGYO KK
Shimizu Construction Co Ltd
Shimizu Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire resistive covering material like a thin layer sheet, which can be sufficiently turned into a thin layer and which is excellent in workability, and a manufacturing method for the fire resistive covering material. <P>SOLUTION: In this fire resistive covering material 1, a sheet-like surface material 3, which is formed by scooping and thinly spreading slurry B mainly composed of reinforcing fibers consisting of organic or inorganic fibers, is superposed and integrally formed on at least one surface of a sheet like fire resistive material 2 which is formed by scooping and thinly spreading slurry A mainly composed of inorganic fibers and an expandable material. In the manufacturing method, a sheet material 2a in an undehydrated state is formed by scooping and thinly spreading the slurry A; the slurry B is poured onto the surface of the sheet material; and they are wholly and integrally dehydrated and dried, so that the sheet-like fire resistive material 2 formed from the slurry A and the sheet-like surface material 3 formed from the slurry B can be integrally superposed on each other. The sheet material in the undehydrated state is formed from the slurry B, and the slurry A can also be poured onto it. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、耐火性能を付与するべき対象物の表面に装着される薄層シート状の耐火被覆材、およびその製造方法に関する。   The present invention relates to a fireproof covering material in the form of a thin sheet that is attached to the surface of an object to be imparted with fireproof performance, and a method for producing the same.

周知のように、建物の施工に際してその躯体である鉄骨材の耐火性能を確保するための耐火被覆工法としては、ロックウール等の吹付耐火材を鉄骨材の表面に吹き付けるという吹付工法が最も一般的であるが、近年においてはたとえば特許文献1に示されるようにロックウールフェルトをシート状に加工した耐火被覆材を使用してそれを鉄骨材に巻き付けるという工法も一般化しつつある。
そのような工法によれば、吹付工法に比べて建設現場での発塵量が少ない、他工種との並行作業が可能であるため工期短縮が図れる、工場生産品のため品質が安定している等の利点があり、今後広く普及する気運にある。
As is well known, the most common fireproof coating method to ensure the fireproof performance of the steel frame, which is the housing of the building, is to spray a fireproof material such as rock wool onto the surface of the steel frame. However, in recent years, for example, as shown in Patent Document 1, a method of using a fireproof coating material obtained by processing rock wool felt into a sheet shape and winding it around a steel frame is becoming common.
According to such a construction method, the amount of dust generated at the construction site is less than the spray construction method, and it is possible to work in parallel with other construction types, so the construction period can be shortened, and the quality is stable because it is a factory-produced product. There is an advantage such as, and it is in the mood to spread widely in the future.

しかし、特許文献1に示されているロックウールフェルトからなるシート状の耐火被覆材は所定の耐火性能を得るためには大きな厚みを必要とするものであって、1時間耐火では20mm、2時間耐火では40mm、3時間耐火では60mmもの厚さを必要とすることから、仕上がりに圧迫感がある、施工時の材料の取り回しや現場での加工等の作業性が悪い、取り合い部や仕口部の施工性が悪い、材料が嵩張るので運搬コストが高くなるといった問題があり、その点での改善が望まれているものでもあった。   However, the sheet-like fireproof coating material made of rock wool felt shown in Patent Document 1 requires a large thickness in order to obtain a predetermined fireproof performance. 40mm for fire resistance, 60mm for fire resistance for 3 hours, so there is a feeling of pressure on the finish, workability such as handling of materials during construction and on-site processing is poor, joints and joints However, there are problems such as poor workability and high material costs due to bulky materials, and improvement in that respect has been desired.

そのため、耐火被覆材のさらなる薄層化が望まれており、それを可能とする代表的なものとして対象物の表面に数mm程度の厚さで塗布するだけで所定の耐火性能を確保し得るという発泡性耐火塗料が開発されている。
また、特許文献2にはそのような発泡耐火塗料を無機繊維フェルトに含浸させてなる耐火被覆材が提案されており、これによれば上述したような従来のシート状の耐火被覆材と同様のシート状の形態でありながらそれに比べて充分な薄層化と軽量化を図ることができるとされている。
特開平10−102628号公報 実開平6−20619号公報
Therefore, further reduction in the thickness of the fireproof coating material is desired, and as a typical example that makes it possible, a predetermined fireproof performance can be ensured by simply applying it to the surface of the object with a thickness of about several millimeters. An effervescent fire-resistant paint has been developed.
Further, Patent Document 2 proposes a fireproof coating material obtained by impregnating such a foamed fireproof paint into an inorganic fiber felt, and according to this, the same as the conventional sheet-shaped fireproof coating material as described above is proposed. Although it is a sheet-like form, it is said that it can achieve a sufficiently thin layer and light weight.
Japanese Patent Laid-Open No. 10-102628 Japanese Utility Model Publication No. 6-20619

しかし、発泡性耐火塗料はコストが非常に高いばかりでなく、火災時には有害ガスを発生する懸念があるのでその対策が必要であるし、また、これを現場にて直接塗布する場合には、有機溶剤の揮発がある、塗布回数が多く施工の手間がかかる、塗布厚の管理を厳密に行う必要がある、といった問題があり、経済性や施工性の点では必ずしも満足し得るものではないので広く一般に適用するに至っていない。
また、特許文献2に示されるような発泡性耐火塗料を含浸させたシート状の耐火被覆材は、発泡性耐火塗料を現場で直接塗布する場合に比べれば施工性を改善できるものではあるが、基本的に発泡性耐火塗料を用いていることからコスト高であるし、火災時に有害ガスの発生の懸念がある点では同様の問題を残しているものである。
However, foaming fire-resistant paints are not only very expensive, but there is a concern that harmful gases may be generated in the event of a fire, so it is necessary to take countermeasures. There are problems such as volatilization of the solvent, the number of times of application, a lot of work, and the need to strictly control the application thickness, which is not necessarily satisfactory in terms of economy and workability. It has not been generally applied.
Moreover, the sheet-like fireproof coating material impregnated with the foamable fireproof paint as shown in Patent Document 2 can improve the workability as compared with the case where the foamable fireproof paint is directly applied on site, Basically, the use of foaming fireproof paint is expensive, and the same problem remains in that there is a concern about the generation of harmful gases during a fire.

なお、特許文献1に示されているようなロックウールフェルトからなる耐火被覆材は、充分に薄層化できないばかりでなく、それ自体では形状安定性が悪く容易に裂けたり割れ易いものであるので、その種の耐火被覆材には何らかの補強策が必要である。そのため、特許文献1ではロックウールフェルトの表面に不織布等の表面材を接着するようにしているが、そのために表面材を接着するための格別の工程が必要であるので効率的にかつ安価に製造することは必ずしも容易ではなく、その点においても改善の余地があった。   In addition, the fireproof coating material made of rock wool felt as shown in Patent Document 1 cannot be sufficiently thinned, and itself has poor shape stability and easily tears or breaks easily. Some kind of reinforcement is necessary for such a fireproof coating. Therefore, in Patent Document 1, a surface material such as a non-woven fabric is bonded to the surface of rock wool felt, but for that purpose, a special process for bonding the surface material is necessary, so that it is efficiently and inexpensively manufactured. It is not always easy to do, and there is room for improvement.

上記事情に鑑み、本発明は充分な薄層化と低コスト化を実現でき、また発泡性耐火塗料を用いる場合のような問題もなく、しかも優れた形状安定性を有して容易に裂けたり割れたるすることもない有効適切なシート状の耐火被覆材を提供し、併せて、それを製造するための有効適切な製造方法を提供することを目的としている。   In view of the above circumstances, the present invention can realize sufficient thinning and cost reduction, and there is no problem as in the case of using a foam fireproof paint, and it can be easily torn with excellent shape stability. An object of the present invention is to provide an effective and appropriate sheet-like fireproof coating material that does not break, and to provide an effective and appropriate manufacturing method for manufacturing the same.

本発明の耐火被覆材は、耐火性能を付与するべき対象物の表面に装着される薄層シート状の耐火被覆材であって、無機繊維と発泡性材料とを主成分としてそれらが混和されたスラリーが抄かれて形成されるシート状の耐火材の少なくとも一方の表面に、有機繊維あるいは無機繊維からなる補強繊維を主成分とするスラリーが抄かれて形成されるシート状の表面材が積層されて一体に成形されてなることを特徴とする。   The fire-resistant coating material of the present invention is a thin-layer sheet-like fire-resistant coating material that is attached to the surface of an object to be imparted with fire resistance performance, and is composed mainly of inorganic fibers and a foamable material. On the surface of at least one of the sheet-like refractory materials formed by forming the slurry, a sheet-like surface material formed by forming a slurry mainly composed of reinforcing fibers made of organic fibers or inorganic fibers is laminated. And is integrally formed.

本発明の製造方法は、上記の耐火被覆材を製造するための方法であって、無機繊維と発泡性材料とを主成分としてそれらを混和したスラリーを抄いて未脱水状態のシート材を成形し、有機繊維あるいは無機繊維からなる補強繊維を主成分とするスラリーを前記シート材の表面上に流し込み、それらの全体を一体に脱水させ乾燥させることにより、シート状の耐火材とシート状の表面材とを一体に積層することを特徴とする。
なお、上記の工程とは逆に補強繊維を主成分とするスラリーを抄く工程を先行することでも良い。すなわちその場合には、表面材となる補強繊維を主成分とするスラリーを抄いて未脱水状態のシート材を成形し、耐火材となる無機繊維と発泡性材料とを主成分としてそれらを混和したスラリーを前記シート材の表面上に流し込み、それらの全体を一体に脱水させ乾燥させれば良い。
The production method of the present invention is a method for producing the above-mentioned fireproof coating material, and forms a non-dehydrated sheet material by making a slurry in which inorganic fibers and a foamable material are mixed as main components. The sheet-like refractory material and the sheet-like surface material are obtained by pouring a slurry mainly composed of reinforcing fibers made of organic fibers or inorganic fibers onto the surface of the sheet material, and dehydrating and drying the whole of the sheet material. Are integrally laminated.
In contrast to the above steps, a step of making a slurry mainly composed of reinforcing fibers may be preceded. That is, in that case, a slurry mainly composed of reinforcing fibers as a surface material is formed to form a non-dehydrated sheet material, and inorganic fibers and a foamable material as refractory materials are mixed as main components. The slurry may be poured onto the surface of the sheet material, and all of them may be integrally dehydrated and dried.

本発明の耐火被覆材は、火災時に大きく膨張して優れた耐火性能を発揮する耐火材と、それを補強する機能を有する表面材とを予め一体に成形したものであり、全体として充分なる薄層化と軽量化を実現できることはもとより、優れた形状安定性を確保でき、しかも安価に製造することができるものであり、したがって耐火被覆するべき対象物である鉄骨材等の表面に対して通常の手法により装着することができ、耐火被覆工事の施工性を大きく改善し得てそれに関わる工期短縮と工費削減をはかることが可能である。   The fire-resistant coating material of the present invention is formed by integrally integrating a fire-resistant material that expands greatly in the event of a fire and exhibits excellent fire resistance performance and a surface material having a function of reinforcing the fire-resistant material. In addition to being able to realize layering and weight reduction, it can ensure excellent shape stability and can be manufactured at low cost, and is therefore usually applied to the surface of steel frames, etc. that are objects to be fireproof coated It can be installed by this method, and it is possible to greatly improve the workability of the refractory coating work, and to shorten the work period and the work cost related thereto.

本発明の製造方法は、各分野の製造工程において広く採用されている一般的な抄紙工程と同様の工程を基本とするものであって、特殊な工程や複雑な製造設備を必要とせず、したがって簡易な製造施設で簡便に製造することができるし、所定規格で効率的に大量生産することが可能である。特に、簡単な工程で耐火材と表面材とを自ずと強固に一体化し得るし、高価な発泡性耐火塗料や各種の溶剤を用いるものではないから、製造コストを充分に削減できるし、製造時の品質確保も容易である。   The production method of the present invention is based on the same process as a general papermaking process widely adopted in the production process of each field, and does not require a special process or complicated production equipment. It can be easily manufactured at a simple manufacturing facility, and can be mass-produced efficiently with a predetermined standard. In particular, the refractory material and the surface material can be firmly integrated with each other in a simple process, and since expensive foaming refractory paint and various solvents are not used, the manufacturing cost can be reduced sufficiently, Quality assurance is also easy.

本発明の実施形態である耐火被覆材についてその製造方法とともに図1を参照して説明する。
図1に示すように、本実施形態の耐火被覆材1は、耐火性能を発揮する耐火材2と、その耐火材2を補強するために一表面(図1においては上面)に一体に積層された表面材3とにより、全体として薄層シート状に成形されたものである。
A fireproof coating material according to an embodiment of the present invention will be described together with its manufacturing method with reference to FIG.
As shown in FIG. 1, the fireproof covering material 1 of this embodiment is laminated | stacked integrally on one surface (in FIG. 1 upper surface) in order to reinforce the fireproof material 2 which exhibits fireproof performance, and the fireproof material 2. As shown in FIG. The surface material 3 is formed into a thin layer sheet as a whole.

本実施形態における耐火材2は、無機繊維と発泡性材料とを主成分とし、必要に応じて補強用の繊維や有機バインダーが配合されて成形されたものである。
主成分の無機繊維としてはロックウールやセラミックファイバーが好適に採用可能であり、発泡性材料としては膨張黒鉛やひる石等の天然素材が好適に採用可能である。補強用の繊維としてはガラス繊維や有機繊維が好適に採用可能であり、有機バインダーとしてはアクリル樹脂が好適に採用可能である。
The refractory material 2 in the present embodiment is formed by blending reinforcing fibers and organic binders as necessary with inorganic fibers and a foamable material as main components.
Rock wool and ceramic fibers can be suitably used as the main inorganic fiber, and natural materials such as expanded graphite and vermiculite can be suitably used as the foamable material. Glass fiber or organic fiber can be suitably used as the reinforcing fiber, and acrylic resin can be suitably adopted as the organic binder.

一方、本実施形態における表面材3は、補強繊維を主成分とし、必要に応じて添加剤としてアクリル系樹脂、熱硬化性樹脂のエマルジョンが配合されて成形されたものである。
補強繊維としては引き裂き強度が高くかつ柔軟性に優れた繊維が適当であり、具体的には、麻繊維やパルプ等の天然繊維、ポリエステル繊維やポリプロピレン繊維等の有機繊維が好適に採用可能である。なお、パルプとしてはN.BKP(針葉樹さらしパルプ)やL.BKP(広葉樹さらしパルプ)、未ざらしパルプ等が使用可能である。
On the other hand, the surface material 3 in the present embodiment is formed by blending an emulsion of an acrylic resin and a thermosetting resin as an additive as necessary with reinforcing fibers as a main component.
As the reinforcing fiber, a fiber having high tear strength and excellent flexibility is suitable. Specifically, natural fibers such as hemp fiber and pulp, and organic fibers such as polyester fiber and polypropylene fiber can be suitably used. . As the pulp, N.BKP (softwood bleached pulp), L.BKP (hardwood bleached pulp), unbleached pulp and the like can be used.

本実施形態の耐火被覆材1を製造するには、図1に示すように、まず耐火材2となる繊維を主成分とするスラリー(以下、スラリーAと記す)を調製する。その配合例としては、ロックウールやセラミックファイバー等の無機繊維を80〜90%(好ましくは87%)、膨張黒鉛やひる石等の発泡性材料を3〜13%(好ましくは6%)、補強性の繊維として合成繊維を2%、同じくガラス繊維を5%、有機バインダーとしてアクリル樹脂を外添加で4%とすることが良い。
そして、そのスラリーAを通常の抄紙工程と同様の手法により抄いて、所定の耐火性能を得られる厚さになるように(たとえば、1時間耐火であれば、脱水・乾燥後の厚さが約10mmとなるように)、未脱水状態のシート材2aを成形する。
In order to manufacture the fireproof covering material 1 of the present embodiment, as shown in FIG. 1, first, a slurry (hereinafter referred to as “slurry A”) whose main component is a fiber that becomes the fireproof material 2 is prepared. For example, 80 to 90% (preferably 87%) of inorganic fibers such as rock wool and ceramic fibers, 3 to 13% (preferably 6%) of foamable materials such as expanded graphite and vermiculite, and reinforcement It is preferable that the synthetic fiber is 2%, the glass fiber is 5%, and the acrylic resin is added as an organic binder to 4%.
Then, the slurry A is made by a method similar to that of a normal paper making process so as to obtain a predetermined fire resistance (for example, if it is fire resistant for 1 hour, the thickness after dehydration and drying is about The non-dehydrated sheet material 2a is formed so as to be 10 mm.

一方、表面材3となる補強繊維を主成分とするスラリー(以下、スラリーBと記す)を別途調製し、そのスラリーBを上記の未脱水状態のシート材2aの表面上に所定厚さ(たとえば0.1〜2mm程度)となるように流し込む。これにより、双方の境界層ではスラリーAの成分である繊維とスラリーBの成分である補強繊維とが自ずと相互に絡み合う状態になる。   On the other hand, a slurry mainly composed of reinforcing fibers to be the surface material 3 (hereinafter referred to as slurry B) is separately prepared, and the slurry B is formed on the surface of the non-dehydrated sheet material 2a with a predetermined thickness (for example, Pour so that it becomes about 0.1-2mm. Thereby, in both boundary layers, the fiber which is the component of the slurry A and the reinforcing fiber which is the component of the slurry B are entangled with each other.

そして、それらの全体を脱水させ乾燥させる。これにより最終的にスラリーAにより耐火材2が成形されると同時にスラリーBにより表面材3が成形され、それらは自ずと強固に一体化して全体として耐火被覆材1が成形される。以降は所望長さに切断してロール状に巻き取り、製品として完成させる。   Then, all of them are dehydrated and dried. As a result, the refractory material 2 is finally formed by the slurry A and at the same time the surface material 3 is formed by the slurry B, and they are naturally firmly integrated to form the refractory coating material 1 as a whole. Thereafter, it is cut into a desired length, wound up in a roll shape, and completed as a product.

なお、上記の脱水乾燥工程においてはプレス加工によりロール圧力を加えながら乾燥しても良いし、あるいは湿潤状態でホットプレス加工を行っても良い。ホットプレス加工を行う場合にはプレス後の耐火材の厚さを薄くすることができ、ホットプレス加工を行わない場合に脱水・乾燥後の厚さが10mm程度必要な場合でも、ホットプレス加工を行うことにより耐火材の厚さが2〜3mm程度でホットプレス加工を行わない場合と同等の耐火性能が得られる。
また、必要であれば、脱水乾燥工程において表面材3の表面に対する適宜の仕上げを施すことも可能である。たとえばスラリーBを流し込んだ後に適宜の染料や顔料を混和すれば様々に着色することができるし、表面に凹凸等の所望のテクスチャーを付けることも可能であり、それにより意匠上の自由度を向上させることができ、商品価値を高めることができる。スラリーBを着色するためには、容易に入手可能な繊維用染料やパルプ用染料、無機顔料、有機顔料等をそのまま使用することができる。
In the above dehydration drying process, drying may be performed while applying roll pressure by pressing, or hot pressing may be performed in a wet state. When hot pressing is performed, the thickness of the refractory material after pressing can be reduced, and when hot pressing is not performed, hot pressing can be performed even when a thickness of about 10 mm after dehydration and drying is required. By doing so, fire resistance equivalent to the case where the thickness of the refractory material is about 2 to 3 mm and hot pressing is not performed can be obtained.
In addition, if necessary, it is possible to appropriately finish the surface of the surface material 3 in the dehydration drying process. For example, it is possible to add various dyes and pigments after pouring the slurry B, and various colors can be applied, and it is also possible to give the surface a desired texture such as irregularities, thereby improving the degree of freedom in design. Can increase the value of the product. In order to color the slurry B, easily available dyes for fibers, dyes for pulp, inorganic pigments, organic pigments and the like can be used as they are.

本実施形態の耐火被覆材1は、表面材3を含めた全体の厚さを充分に薄くできるものであって、ホットプレスなしの場合には従来の1/2〜1/3程度、ホットプレス加工ありの場合には従来の1/10程度にまで充分に薄層化できるが、そのように薄層化したにも関わらず、火災時には耐火材2が大きく膨張してその厚さが増大することにより充分な耐火性能を発揮するものである。
すなわち、この耐火被覆材1により被覆した対象物(鉄骨材等)が火災により高温にさらされると、耐火材2の成分である発泡性材料(膨張黒鉛やひる石等)が発泡して面外方向に大きく膨張し、それにより耐火材2の厚さが充分に大きくなって優れた耐火断熱性能を発揮し、要求される所定の耐火性能を支障なく確保することができる。勿論、主成分としての発泡性材料として膨張黒鉛やひる石等の天然素材を用いているので、耐火塗料のように火災時に有害ガスが発生するような懸念もない。なお、表面材3は耐火性能には関与するものではなく火災時には自ずと焼失してしまうが、耐火被覆材1全体として耐火性能を確保する上では何ら支障がない。
The fireproof covering material 1 of the present embodiment can sufficiently reduce the entire thickness including the surface material 3, and in the case of no hot press, about 1/2 to 1/3 of the conventional hot press. In the case of processing, the thickness can be sufficiently reduced to about 1/10 of the conventional level. However, in spite of the reduction in thickness, the refractory material 2 expands greatly in the event of a fire and its thickness increases. By this, sufficient fire resistance performance is exhibited.
That is, when an object (steel frame or the like) covered with the fireproof coating material 1 is exposed to a high temperature due to a fire, a foamable material (expanded graphite, granite or the like) which is a component of the fireproof material 2 is foamed and out of plane The refractory material 2 expands greatly in the direction, whereby the thickness of the refractory material 2 becomes sufficiently large to exhibit excellent fireproof heat insulation performance, and the required fireproof performance required can be secured without hindrance. Of course, since natural materials such as expanded graphite and vermiculite are used as the foamable material as the main component, there is no concern that harmful gases are generated during a fire unlike fire-resistant paints. Note that the surface material 3 is not involved in the fire resistance, and is naturally burned off in the event of a fire. However, there is no problem in securing the fire resistance as the fireproof coating 1 as a whole.

上述したように従来一般のシート状耐火被覆材は1時間耐火で20mm程度の厚さが必要であったのに対して、本発明の耐火被覆材1は耐火材2の厚さを従来の1/2〜1/3程度(ホットプレスなしの場合)あるいは1/10程度(ホットプレス加工ありの場合)にまで薄層化でき、表面材3を含めた全体の厚さも10〜12mm程度(ホットプレスなしの場合)あるいは2〜5mm程度(ホットプレス加工ありの場合)で済む。その結果、従来一般のシート状耐火被覆材に比べて充分に軽量化され、かつ嵩が大きく減少するし充分に柔軟なものであるので、対象物への装着作業を格段に容易に行うことができて作業性を大きく改善することができ、以上のことから従来一般のシート状耐火被覆材による場合に比べて充分に工期短縮を図ることができるし、保管スペースや運搬コストの削減も図ることができる。   As described above, the conventional sheet-like fireproof coating material is fire resistant for 1 hour and needs to have a thickness of about 20 mm, whereas the fireproof coating material 1 of the present invention has the thickness of the fireproof material 2 of the conventional one. / 2 to 1/3 (with no hot pressing) or 1/10 (with hot pressing), the total thickness including the surface material 3 is about 10 to 12mm (hot) No press) or 2-5mm (with hot press). As a result, it is sufficiently lighter than conventional sheet-like fireproof coating materials, and its bulk is greatly reduced and it is sufficiently flexible, so that it can be remarkably easily attached to an object. Therefore, workability can be greatly improved, and from the above, the work period can be sufficiently shortened compared to the case of using conventional sheet-like fireproof coating materials, and storage space and transportation costs can also be reduced. Can do.

しかも、耐火材2の表面には表面材3を予め積層してそれらを一体化しているので、その表面材3によって耐火材1が補強されるとともに、意匠的にも好ましいものとなり、それにより装着時の作業性をさらに向上させることができる。
すなわち、耐火性能を確保するうえでは単に耐火材2のみで充分であるが、その場合には形状安定性が充分ではないので装着作業時に容易に破損したり無機繊維が飛散してしまうことが想定されることから、それを装着する際には慎重な作業が必要であるが、耐火材2の表面に予め表面材3を一体に積層しておくことによってその補強効果により耐火材2の形状安定性が自ずと向上し、装着作業の際の取り扱いが格段に容易になって作業効率を大きく改善することができる。しかも、装着後には耐火材2が表面材3により隠蔽されてしまうので見栄えが格段に向上し、従来においては耐火材2の表面に仕上げを施す必要がある場合においてもその作業を省略することができる。
Moreover, since the surface material 3 is laminated in advance on the surface of the refractory material 2 and they are integrated, the refractory material 1 is reinforced by the surface material 3 and is also preferable in terms of design. Workability at the time can be further improved.
That is, in order to ensure the fire resistance performance, the refractory material 2 alone is sufficient, but in that case, the shape stability is not sufficient, so it is assumed that the fiber is easily damaged or the inorganic fibers are scattered. Therefore, careful work is required when mounting it, but the shape of the refractory material 2 can be stabilized due to its reinforcing effect by previously laminating the surface material 3 on the surface of the refractory material 2 in advance. As a result, it is possible to improve the efficiency of the work and to greatly improve the work efficiency. Moreover, since the refractory material 2 is concealed by the surface material 3 after mounting, the appearance is remarkably improved, and in the past, even when it is necessary to finish the surface of the refractory material 2, the work can be omitted. it can.

また、本実施形態の製造方法は、各分野の製造工程において広く採用されている一般的な抄紙工程と同様の工程とを基本とするものであって、何ら特殊な工程や複雑な製造設備を必要とせず、したがって簡易な製造施設で簡便に製造することができるし、所定規格で効率的に大量生産することが可能であるので、充分な低価格化を実現できるし、製造時の品質確保も容易である。
特に、先行成形したスラリーAによる未脱水状体のシート材2a上にスラリーBを流し込むことのみで双方のスラリーA,Bの繊維どうしが自ずと絡み合い、そのため最終的には耐火材2と表面材3とが自ずと強固に一体化してしまい、したがって特許文献1に示される耐火被覆材の製造工程においては必要とされる表面材の接着工程のような格別の一体化工程は一切不要であり、この点においても効率的な製造が可能である。
In addition, the manufacturing method of the present embodiment is based on the same process as the general paper making process widely adopted in the manufacturing process of each field, and has no special process or complicated manufacturing equipment. Therefore, it can be easily manufactured at a simple manufacturing facility, and can be mass-produced efficiently with a predetermined standard, so that it is possible to realize a sufficiently low price and to ensure quality during manufacturing. Is also easy.
In particular, the fibers of both the slurry A and B are entangled with each other only by pouring the slurry B onto the non-dehydrated sheet material 2a of the pre-formed slurry A, so that finally the refractory material 2 and the surface material 3 Therefore, a special integration process such as a bonding process of the surface material required in the manufacturing process of the fireproof coating shown in Patent Document 1 is not necessary at all. Can also be efficiently manufactured.

しかも、耐火材2の主成分としての発泡性材料としては膨張黒鉛やひる石等の天然素材を用いることが可能であり、表面材3の主成分としての補強繊維としても安価な天然繊維や有機繊維を用いることが可能であって、高価な発泡性耐火塗料や各種の溶剤を用いるものではないから、従来の発泡性耐火塗料やそれを含浸させたシート状の耐火被覆材を用いる場合に比べれば製造工程が簡単であることとあいまって製造コストを大きく削減することができる。   Moreover, natural materials such as expanded graphite and granite can be used as the foamable material as the main component of the refractory material 2, and inexpensive natural fibers and organic materials can be used as the reinforcing fiber as the main component of the surface material 3. It is possible to use fibers and not expensive foaming fireproof paints or various solvents. Compared to the conventional foaming fireproof paint or sheet-like fireproof coating material impregnated with it. If the manufacturing process is simple, the manufacturing cost can be greatly reduced.

以上、本発明の一実施形態を説明したが、上記実施形態はあくまで好適な一例であって本発明は上記実施形態に限定されるものではなく、たとえば以下のような変形や応用も可能である。
上記実施形態では表面材3を成形するための好適な補強繊維として、麻繊維やパルプ等の天然繊維、ポリエステル繊維やポリプロピレン繊維等の有機繊維を例示したが、さらにロックウールやセラミックファイバー等の無機繊維を使用することもできる。但し、その場合には、表面材3の引き裂き強度の向上と、耐火材2の成分である無機繊維や膨張黒鉛等の混和物の飛散防止を図るためには、天然繊維や有機繊維を使用する場合に比べてスラリーB中のバインダー樹脂配合率を増量して樹脂量を多くすることが好ましい。
As mentioned above, although one embodiment of the present invention was described, the above-mentioned embodiment is a suitable example to the last, and the present invention is not limited to the above-mentioned embodiment. For example, the following modifications and applications are possible. .
In the above embodiment, natural fibers such as hemp fibers and pulp, and organic fibers such as polyester fibers and polypropylene fibers are exemplified as suitable reinforcing fibers for molding the surface material 3, but inorganic fibers such as rock wool and ceramic fibers are also exemplified. Fiber can also be used. However, in that case, natural fibers or organic fibers are used in order to improve the tear strength of the surface material 3 and to prevent the mixture of inorganic fibers and expanded graphite such as components of the refractory material 2. It is preferable to increase the amount of the resin by increasing the blending ratio of the binder resin in the slurry B as compared with the case.

また、上記実施形態の製造工程ではスラリーAによる耐火材2の成形を先行し、スラリーAによる未脱水状態のシート材2a上にスラリーBを流し込むようにしたが、その工程を逆にすることも可能である。すなわち、まずスラリーBによる表面材3の成形を先行してそれによる未脱水状態のシート材を成形し、その上にスラリーAを流し込んでそれらの全体を一体に脱水し乾燥させても良く、それによっても製造段階で表裏関係が反転しているだけで同様の構成の耐火被覆材を効率的に製造することができる。
さらには、必要であれば、上述した工程を組み合わせることで耐火材2の両面にそれぞれ表面材3を積層した3層構造の耐火被覆材を製造することも可能である。すなわち、まずスラリーBによる表面材3の成形を先行してそれによる未脱水状態のシート材を成形し、その上にスラリーAを流し込み、さらにその上に再びスラリーBを流し込んだ後、それらの全体を一体に脱水させ乾燥させれば良い。
Further, in the manufacturing process of the above embodiment, the refractory material 2 is formed with the slurry A in advance, and the slurry B is poured onto the non-dehydrated sheet material 2a with the slurry A. However, the process may be reversed. Is possible. That is, the surface material 3 may be formed first with the slurry B, and then the non-dehydrated sheet material may be formed, and then the slurry A may be poured onto the whole to dehydrate and dry the whole. Also, the fireproof coating material having the same configuration can be efficiently manufactured simply by reversing the front / back relationship at the manufacturing stage.
Furthermore, if necessary, it is also possible to manufacture a fireproof coating material having a three-layer structure in which the surface material 3 is laminated on both surfaces of the fireproof material 2 by combining the above-described steps. That is, first the surface material 3 is formed with the slurry B, and then the non-dehydrated sheet material is formed. Then, the slurry A is poured thereon, and the slurry B is poured again thereon, and then the whole of them. Can be dehydrated and dried together.

本発明の耐火被覆材の概略構成とその製造工程の概要を示す図である。It is a figure which shows the schematic structure of the fireproof coating material of this invention, and the outline | summary of the manufacturing process.

符号の説明Explanation of symbols

1 耐火被覆材
2 耐火材
2a 未脱水状態のシート材
3 表面材
DESCRIPTION OF SYMBOLS 1 Fireproof covering material 2 Fireproof material 2a Non-dehydrated sheet material 3 Surface material

Claims (3)

耐火性能を付与するべき対象物の表面に装着される薄層シート状の耐火被覆材であって、
無機繊維と発泡性材料とを主成分としてそれらが混和されたスラリーが抄かれて形成されるシート状の耐火材の少なくとも一方の表面に、有機繊維あるいは無機繊維からなる補強繊維を主成分とするスラリーが抄かれて形成されるシート状の表面材が積層されて一体に成形されてなることを特徴とする耐火被覆材。
It is a fireproof covering material in the form of a thin sheet that is attached to the surface of an object to be given fireproof performance,
At least one surface of a sheet-like refractory material formed by making a slurry in which inorganic fibers and a foamable material are mixed as main components is formed, and reinforcing fibers made of organic fibers or inorganic fibers are the main components. A fire-resistant coating material comprising a sheet-like surface material formed by slurrying and formed integrally.
耐火性能を付与するべき対象物の表面に装着される薄層シート状の耐火被覆材を製造する方法であって、
無機繊維と発泡性材料とを主成分としてそれらを混和したスラリーを抄いて未脱水状態のシート材を成形し、有機繊維あるいは無機繊維からなる補強繊維を主成分とするスラリーを前記シート材の表面上に流し込み、それらの全体を一体に脱水させ乾燥させることによりシート状の耐火材とシート状の表面材とを一体に積層して薄層シート状の耐火被覆材を製造することを特徴とする耐火被覆材の製造方法。
A method for producing a thin-layer sheet-like fireproof coating material to be attached to the surface of an object to be imparted with fireproof performance,
A slurry in which inorganic fibers and a foamable material are mixed as main components is made to form a non-dehydrated sheet material, and the slurry mainly composed of organic fibers or inorganic fibers is used as the surface of the sheet material. The sheet-like refractory material and the sheet-like surface material are laminated integrally by pouring up and dehydrating and drying all of them together to produce a thin-layer sheet-like refractory coating material A method for manufacturing a fireproof coating.
耐火性能を付与するべき対象物の表面に装着される薄層シート状の耐火被覆材を製造する方法であって、
有機繊維あるいは無機繊維からなる補強繊維を主成分とするスラリーを抄いて未脱水状態のシート材を成形し、無機繊維と発泡性材料とを主成分としてそれらを混和したスラリーを前記シート材の表面上に流し込み、それらの全体を一体に脱水させ乾燥させることによりシート状の表面材とシート状の耐火材とを一体に積層して薄層シート状の耐火被覆材を製造することを特徴とする耐火被覆材の製造方法。
A method for producing a thin-layer sheet-like fireproof coating material to be attached to the surface of an object to be imparted with fireproof performance,
A sheet mainly composed of reinforcing fibers made of organic fibers or inorganic fibers is formed to form a non-dehydrated sheet material, and a slurry obtained by mixing inorganic fibers and a foamable material as main components is used as the surface of the sheet material. The sheet-like surface material and the sheet-like refractory material are laminated integrally by pouring up and then dehydrating and drying all of them together to produce a thin-layer sheet-like refractory coating material A method for manufacturing a fireproof coating.
JP2008022991A 2008-02-01 2008-02-01 Fire resistive covering material and its manufacturing method Pending JP2009185445A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015021303A (en) * 2013-07-19 2015-02-02 未来工業株式会社 Fireproof treatment material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11140755A (en) * 1997-11-10 1999-05-25 Sekisui Chem Co Ltd Fire-resisting and heat-insulating sheet
JP2000199194A (en) * 1998-11-04 2000-07-18 Nitto Boseki Co Ltd Thermally expandable type inorganic fibrous felt
WO2006082645A1 (en) * 2005-02-04 2006-08-10 Sk Kaken Co., Ltd. Method of forming foam fireproof layer
JP2006213537A (en) * 2005-02-01 2006-08-17 Sekisui Chem Co Ltd Thermally expansive inorganic material
JP2008031797A (en) * 2006-07-31 2008-02-14 Sekisui Chem Co Ltd Steel-frame coating structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11140755A (en) * 1997-11-10 1999-05-25 Sekisui Chem Co Ltd Fire-resisting and heat-insulating sheet
JP2000199194A (en) * 1998-11-04 2000-07-18 Nitto Boseki Co Ltd Thermally expandable type inorganic fibrous felt
JP2006213537A (en) * 2005-02-01 2006-08-17 Sekisui Chem Co Ltd Thermally expansive inorganic material
WO2006082645A1 (en) * 2005-02-04 2006-08-10 Sk Kaken Co., Ltd. Method of forming foam fireproof layer
JP2008031797A (en) * 2006-07-31 2008-02-14 Sekisui Chem Co Ltd Steel-frame coating structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015021303A (en) * 2013-07-19 2015-02-02 未来工業株式会社 Fireproof treatment material

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