JP5129279B2 - Insulation - Google Patents
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- JP5129279B2 JP5129279B2 JP2010038435A JP2010038435A JP5129279B2 JP 5129279 B2 JP5129279 B2 JP 5129279B2 JP 2010038435 A JP2010038435 A JP 2010038435A JP 2010038435 A JP2010038435 A JP 2010038435A JP 5129279 B2 JP5129279 B2 JP 5129279B2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
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Description
本発明は、芯材を外被材に被覆してなる断熱材に関する。 The present invention relates to a heat insulating material formed by coating a core material on a jacket material.
この種の断熱材として、例えば特許文献１には、繊維シートを複数枚積層してなる芯材と、この芯材を被覆する外被材とを備え、外被材の内部を減圧密封したものが開示されている。 As this type of heat insulating material, for example, Patent Document 1 includes a core material formed by laminating a plurality of fiber sheets, and a jacket material covering the core material, and the inside of the jacket material is sealed under reduced pressure. Is disclosed.
上記構成において、従来の繊維シートは、脱水側面とは反対の表側面に未繊維化物が多く残存する。そのため、繊維シートの表側面が外被材に接すると、外被材が損傷して、外被材に微小な傷がつき、断熱性能が劣化するため、繊維シートのスラリー濃度を下げようとするが、スラリー濃度が下がるほど脱水に時間を要し、生産性が低下する。 In the above configuration, in the conventional fiber sheet, a large amount of unfibrinated material remains on the front side opposite to the dewatering side. Therefore, when the front side surface of the fiber sheet is in contact with the jacket material, the jacket material is damaged, the jacket material is scratched, and the heat insulation performance is deteriorated, so that the slurry concentration of the fiber sheet is lowered. However, the lower the slurry concentration, the longer the time required for dewatering, and the lower the productivity.
そこで本発明は上記問題点に鑑み、繊維シートの生産性を低下させることなく、断熱性能の信頼性を確保できる断熱材を提供することを目的とする。 Then, in view of the said problem, this invention aims at providing the heat insulating material which can ensure the reliability of heat insulation performance, without reducing the productivity of a fiber sheet.
本発明の断熱材は、ガラス繊維を母材とした繊維シートを複数枚積層してなる芯材と、この芯材を被覆する外被材とを備え、前記外被材の内部を減圧密封した断熱材において、前記外被材に接する前記芯材の面を、前記繊維シートの脱水側面とし、該脱水側面には、前記ガラス繊維が格子状コンベアに載置し運搬されたときに、脱水と共につく跡があることを特徴とする。 The heat insulating material of the present invention comprises a core material formed by laminating a plurality of fiber sheets made of glass fiber as a base material, and a jacket material covering the core material, and the inside of the jacket material is sealed under reduced pressure. In the heat insulating material, the surface of the core material in contact with the jacket material is a dewatering side surface of the fiber sheet, and the dewatering side surface is dehydrated when the glass fiber is placed and transported on a lattice conveyor. It is characterized by a trace.
また本発明では、前記脱水と共につく跡は、メッシュ状であることを特徴とする。 In the present invention, the mark that accompanies the dehydration has a mesh shape.
この場合、未繊維化物が残存する繊維シートの表側面に外被材が接することはなく、積層する各繊維シートの表側面は、何れも芯材の内部に位置することになるので、外被材の損傷を激減させて、断熱性能の劣化を防ぐことができる。また、これは繊維シートのスラリー濃度を低下させることなく達成できるので、脱水時間を増やすことなく生産性を維持できる。さらに、芯材の製造工程において、ガラス繊維が格子状コンベアに載置し運搬されたときに、脱水と共につく跡によって、繊維シートの脱水側面が、表側面ではなく裏側面であることがわかる。 In this case, the outer jacket material does not contact the front side surface of the fiber sheet where the unfibrinated material remains, and the front side surfaces of the laminated fiber sheets are all located inside the core material. The damage of the material can be drastically reduced and the deterioration of the heat insulation performance can be prevented. In addition, since this can be achieved without reducing the slurry concentration of the fiber sheet, productivity can be maintained without increasing the dehydration time. Further, in the manufacturing process of the core material, when the glass fiber is placed and transported on the lattice conveyor, it can be seen that the dewatering side surface of the fiber sheet is not the front side surface but the back side surface.
本発明における上記構成の断熱材であれば、繊維シートの生産性を低下させることなく、断熱性能の信頼性を確保できる。さらに、芯材の製造工程において、ガラス繊維が格子状コンベアに載置し運搬されたときに、脱水と共につく跡によって、繊維シートの脱水側面が、表側面ではなく裏側面であることがわかる。 If it is the heat insulating material of the said structure in this invention, the reliability of heat insulation performance is securable without reducing the productivity of a fiber sheet. Further, in the manufacturing process of the core material, when the glass fiber is placed and transported on the lattice conveyor, it can be seen that the dewatering side surface of the fiber sheet is not the front side surface but the back side surface.
以下、添付図面を参照しつつ、本発明における断熱材の好ましい実施例を説明する。 Hereinafter, preferred embodiments of a heat insulating material according to the present invention will be described with reference to the accompanying drawings.
図１は、完成状態における平板状の断熱材すなわち真空断熱材１の断面図を示している。この真空断熱材１は、繊維状のグラスウールシート２，３，４を積層した断熱体からなる芯材１１と、芯材１１の内部に配置した酸化カルシウムの吸着剤１２とを、バリア材としての外被材１４で真空状態に包装して構成される。芯材１１を構成するグラスウールシート２，３，４は、シート状に製造された無機繊維体を所定の寸法にカットしたもので、これらのグラスウールシート２，３，４を積み重ねて規定の枚数にした芯材１１を、吸着剤１２と共に外被材１４に挿入している。また吸着剤１２は、積層シート状のフィルムで袋状に封止されたもので、その内部には酸化カルシウムが封入されるが、シリカゲルやゼオライトなどの水分吸着機能を有する他の無機物を、酸化カルシウムに代わって封入してもよい。 FIG. 1 shows a cross-sectional view of a flat heat insulating material, that is, a vacuum heat insulating material 1 in a completed state. This vacuum heat insulating material 1 uses a core material 11 made of a heat insulating material in which fibrous glass wool sheets 2, 3, and 4 are laminated, and a calcium oxide adsorbent 12 disposed inside the core material 11 as a barrier material. The outer cover material 14 is packaged in a vacuum state. The glass wool sheets 2, 3 and 4 constituting the core material 11 are obtained by cutting the inorganic fiber body produced in a sheet shape into a predetermined size, and stacking these glass wool sheets 2, 3 and 4 to a specified number of sheets. The core material 11 is inserted into the jacket material 14 together with the adsorbent 12. Further, the adsorbent 12 is sealed in a bag shape with a laminated sheet-like film, and calcium oxide is enclosed therein, but other inorganic substances having a moisture adsorption function such as silica gel and zeolite are oxidized. You may enclose instead of calcium.
抄紙タイプのグラスウールシート２，３，４は、前記無機繊維体の母材をなすガラス繊維が高親水性で、所定時間が経過すると空気中の水分を吸着（吸湿）する性質を有しており、例えば真空断熱材１として組み込む時に、0.5〜１重量パーセント程度の水分を吸着する場合がある。ガラス繊維が水分を多く吸着すると、水分除去が不完全になって断熱性能が低下したり、ガラス繊維内のアルカリ金属成分が溶出して、ガラス繊維そのものが劣化したり、ガラス繊維どうしが接着するなどの問題が発生し、とりわけガラス繊維の劣化は、真空断熱材１への組み込み時に芯材１１の繊維破壊を引き起こす。 The papermaking type glass wool sheets 2, 3, and 4 have the property that the glass fiber that forms the base material of the inorganic fiber body is highly hydrophilic and adsorbs moisture in the air (absorbs moisture) after a predetermined time. For example, when incorporated as the vacuum heat insulating material 1, about 0.5 to 1 weight percent of moisture may be adsorbed. When glass fiber absorbs a lot of moisture, moisture removal becomes incomplete and the heat insulation performance deteriorates, the alkali metal component in the glass fiber elutes, the glass fiber itself deteriorates, and the glass fibers adhere to each other. In particular, the deterioration of the glass fiber causes fiber breakage of the core material 11 when incorporated into the vacuum heat insulating material 1.
こうした問題を避けるために、グラスウールシート２，３，４は外被材１４に包装される前に、その裏側面２ｂ，３ｂ，４ｂからグラスウールシート２，３，４に含まれる水分を除去する脱水が行われる。このとき、各グラスウールシート２，３，４の表側面２ａ，３ａ，４ａは、脱水側面である反対側の裏側面２ｂ，３ｂ，４ｂよりも、多くのショットすなわちガラスショット５が存在することになる。このガラスショット５は、グラスウールシート２，３，４そのものを構成する本来のガラス繊維よりも、比較的大きなサイズを有する粒状物や繊維状物（未繊維化物）で形成され、グラスウールシート２，３，４中に少量混入している。 In order to avoid such a problem, the glass wool sheets 2, 3 and 4 are dehydrated to remove moisture contained in the glass wool sheets 2, 3 and 4 from the back side surfaces 2b, 3b and 4b before being wrapped in the outer covering material 14. Is done. At this time, the front side surfaces 2a, 3a, 4a of the glass wool sheets 2, 3, 4 have more shots, that is, glass shots 5, than the opposite back side surfaces 2b, 3b, 4b, which are dewatering side surfaces. Become. The glass shot 5 is formed of a granular material or a fibrous material (non-fibrous material) having a relatively larger size than the original glass fiber constituting the glass wool sheets 2, 3, 4 itself. , 4 is mixed in a small amount.
本実施例では、外被材１４に接する芯材１１の面すなわち一側面１１ａが、グラスウールシート２の裏側面２ｂとなっており、また一側面１１ａに対向する他側面１１ｂも、別なグラスウールシート４の裏側面４ｂとなっていることが注目される。これにより、ガラスショット５が多く存在するグラスウールシート２，３，４の表側面２ａ，３ａ，４ａは、何れも外被材１４に接する芯材１１の一側面１１ａや他側面１１ｂとはならず、芯材１１の内部に位置するようになる。また、各グラスウールシート２，３，４のスラリー濃度（＝繊維質量／（繊維質量＋水量））は従来と同様程度になっており、ガラスショット５を除去しやすくするために、あえて水量を増やすような処理は行なっていない。これにより、上記脱水に要する時間を必要最小限に止めて、グラスウールシート２，３，４の生産性を低下させないようにしている。 In the present embodiment, the surface of the core material 11 that is in contact with the jacket material 14, that is, one side surface 11 a is the back side surface 2 b of the glass wool sheet 2, and the other side surface 11 b facing the one side surface 11 a is also another glass wool sheet. It is noted that the back side surface 4b of FIG. As a result, the front side surfaces 2a, 3a, 4a of the glass wool sheets 2, 3, 4 in which many glass shots 5 are present do not become the one side surface 11a or the other side surface 11b of the core material 11 in contact with the jacket material 14. It comes to be located inside the core material 11. Moreover, the slurry concentration (= fiber mass / (fiber mass + water content)) of each glass wool sheet 2, 3 and 4 is about the same as the conventional one, and in order to make it easy to remove the glass shot 5, the amount of water is intentionally increased. Such processing is not performed. Thereby, the time required for the dehydration is kept to the minimum necessary so that the productivity of the glass wool sheets 2, 3, 4 is not lowered.
図２は、グラスウールシート２，３，４の表側面２ａ，３ａ，４ａの拡大写真を示し、また図３は、グラスウールシート２，３，４の裏側面２ｂ，３ｂ，４ｂの拡大写真を示しているが、表側面２ａ，３ａ，４ａにはメッシュ（金網）跡が確認できないのに対して、裏側面２ｂ，３ｂ，４ｂにはメッシュ跡が確認できる。このメッシュ跡は、芯材１１の製造工程において、前記無機繊維体のガラス繊維が格子状コンベア（図示せず）に載置し運搬されたときに、脱水と共につく跡であり、これらの図２および図３によれば、グラスウールシート２，３，４の脱水を行なう側の面が、表側面２ａ，３ａ，４ａではなく裏側面２ｂ，３ｂ，４ｂであることがわかる。 FIG. 2 shows an enlarged photograph of the front side surfaces 2a, 3a, 4a of the glass wool sheets 2, 3, 4 and FIG. 3 shows an enlarged photograph of the rear side surfaces 2b, 3b, 4b of the glass wool sheets 2, 3, 4 However, while the mesh (metal mesh) marks cannot be confirmed on the front side surfaces 2a, 3a, 4a, the mesh marks can be confirmed on the back side surfaces 2b, 3b, 4b. This mesh mark is a mark that is attached along with dehydration when the glass fiber of the inorganic fiber body is placed and transported on a lattice conveyor (not shown) in the manufacturing process of the core material 11. According to FIG. 3, it can be seen that the surfaces on the side where the glass wool sheets 2, 3, 4 are dehydrated are not the front side surfaces 2 a, 3 a, 4 a but the back side surfaces 2 b, 3 b, 4 b.
外被材１４は、真空封止前においてその一辺のみを開口した袋状に形成され、この開口部から前記芯材１１と吸着剤１２が挿入された内部が真空封止される。外被材１４は、ガスバリア性および水蒸気バリア性を有し、且つ芯材１１および吸着剤１２を収納して内部を真空に維持できれば、どのような材料であっても構わず、例えばアルミニウムなどの金属を表面に蒸着したプラスチックフィルムなどの積層袋が用いられる。本実施例では、芯材１１の中間に位置するグラスウールシート３に部分的な凹部１５を設け、その凹部１５に吸着剤１２を収納している。外被材１４の個数や収納位置に関しては、本実施例に限定されるものではない。 The jacket material 14 is formed in a bag shape having only one side opened before vacuum sealing, and the inside where the core material 11 and the adsorbent 12 are inserted is vacuum sealed from this opening. The jacket material 14 may be any material as long as it has gas barrier properties and water vapor barrier properties, and can accommodate the core material 11 and the adsorbent 12 and maintain the inside in a vacuum, such as aluminum. A laminated bag such as a plastic film having a metal deposited on its surface is used. In this embodiment, a partial recess 15 is provided in the glass wool sheet 3 located in the middle of the core material 11, and the adsorbent 12 is accommodated in the recess 15. The number and the housing position of the jacket material 14 are not limited to the present embodiment.
次に、従来の真空断熱材（以後、これを断熱材Ａとする）と、上記構成による本実施例の真空断熱材１（以後、これを断熱材Ｂとする）との比較実験について、下の表１を参照しながら説明する。 Next, a comparative experiment between a conventional vacuum heat insulating material (hereinafter referred to as a heat insulating material A) and the vacuum heat insulating material 1 of the present embodiment having the above configuration (hereinafter referred to as a heat insulating material B) will be described below. This will be described with reference to Table 1.
先ず実験を行なうに際して、厚さ５ｍｍを有する抄紙タイプのシート状無機繊維体を所定の寸法（長さ１０００ｍｍ×幅４５０ｍｍ）に切断して、これらを３枚のグラスウールシート２，３，４として重ね、断熱材Ａ，Ｂの芯材１１とした。この芯材１１を乾燥させた後、ＰＥＴ（ポリエチレンテレフタレート），ＯＮ（延伸フィルム），ＡＬ（アルミニウム）およびＨＤＰＥ（高密度ポリエチレン）を順に積層したラミネート袋からなる外被材１４に入れて、内部を数Ｐａに減圧し、外被材１４の開口部を封止することで、完成状態の断熱材Ａ，Ｂを各々200個製作した。また、芯材１１の内部には、吸着剤１２として１０グラムの酸化カルシウムを入れた。 First, when conducting an experiment, a sheet-like inorganic fiber body having a thickness of 5 mm is cut into a predetermined size (length 1000 mm × width 450 mm), and these are stacked as three glass wool sheets 2, 3 and 4. The core material 11 of the heat insulating materials A and B was used. After the core material 11 is dried, the core material 11 is put into a jacket material 14 made of a laminate bag in which PET (polyethylene terephthalate), ON (stretched film), AL (aluminum), and HDPE (high-density polyethylene) are laminated in order. The pressure was reduced to several Pa, and the openings of the jacket material 14 were sealed to produce 200 heat-insulating materials A and B in a completed state. In addition, 10 grams of calcium oxide as the adsorbent 12 was placed inside the core material 11.
従来の断熱材Ａにおける芯材１１は、グラスウールシート２，３，４の表側面２ａ，３ａ，４ａが同一方向となるように積層したもので、この場合は芯材１１の外側部をなすグラスウールシート２の表側面２ａと、同じく芯材１１の外側部をなすグラスウールシート４の裏側面（脱水側面）４ｂが、それぞれ外被材１４との接触面になる。一方、上記実施例に基づく断熱材Ｂの芯材１１は、グラスウールシート２の表側面２ａが、他のグラスウールシート３，４の表側面３ａ，４ａと反対方向になるように裏返して積層され、この場合はグラスウールシート２の裏側面２ｂと、グラスウールシート４の裏側面４ｂが、それぞれ外被材１４との接触面になる。 The core material 11 in the conventional heat insulating material A is laminated so that the front side surfaces 2a, 3a, 4a of the glass wool sheets 2, 3, 4 are in the same direction. In this case, the glass wool forming the outer portion of the core material 11 The front side surface 2a of the sheet 2 and the back side surface (dehydrated side surface) 4b of the glass wool sheet 4 that also forms the outer side of the core material 11 are contact surfaces with the jacket material 14, respectively. On the other hand, the core material 11 of the heat insulating material B based on the above embodiment is laminated so that the front side surface 2a of the glass wool sheet 2 is opposite to the front side surfaces 3a and 4a of the other glass wool sheets 3 and 4, In this case, the back side surface 2b of the glass wool sheet 2 and the back side surface 4b of the glass wool sheet 4 are contact surfaces with the jacket material 14, respectively.
こうして、各々200個の断熱材Ａ，Ｂを、外被材１４の開口部を封止してから72時間後に簡易性能測定器でチェックしたところ、断熱材Ａは200個の中で熱伝導率が2.5ｍＷ／ｍ・ｋを超えるものが85個あり、その中で43個は熱伝導率が10ｍＷ／ｍ・ｋを超えており、明らかにガラスショット５による外被材１４の損傷が認められた。さらに、熱伝導率が10ｍＷ／ｍ・ｋを超える43個について、断熱材Ａを分解して芯材１１を取り出し、外被材１４の内面に浸透液を塗布して、24時間後にリーク箇所を確認したところ、グラスウールシート２の表側面２ａに接する部分で、外被材１４がリークしていることを確認できた。 Thus, each of the 200 heat insulating materials A and B was checked with a simple performance measuring instrument 72 hours after sealing the opening of the jacket material 14, and the heat insulating material A had a thermal conductivity of 200. There are 85 of which exceeds 2.5 mW / m · k, of which 43 have thermal conductivity of more than 10 mW / m · k, and damage to the jacket material 14 due to the glass shot 5 is clearly observed. It was. Furthermore, about 43 pieces having a thermal conductivity exceeding 10 mW / m · k, the heat insulating material A is disassembled, the core material 11 is taken out, the penetrating liquid is applied to the inner surface of the jacket material 14, and the leaked portion is found 24 hours later. As a result of confirmation, it was confirmed that the jacket material 14 was leaking at a portion in contact with the front side surface 2 a of the glass wool sheet 2.
一方、断熱材Ｂは、200個の中で熱伝導率が2.5ｍＷ／ｍ・ｋを超えるものが２個あり、その値は3.5ｍＷ／ｍ・ｋと3.7ｍＷ／ｍ・ｋで、熱伝導率が10ｍＷ／ｍ・ｋを超えるものは存在せず、断熱材Ａとは比較にならないほど外被材１４のリーク不良が激減している。これにより、本実施例における断熱材Ｂの効果が確認できた。 On the other hand, there are two thermal insulation materials B with thermal conductivity exceeding 2.5 mW / m · k out of 200, and the values are 3.5 mW / m · k and 3.7 mW / m · k, respectively. There are no cases where the rate exceeds 10 mW / m · k, and the leakage defects of the jacket material 14 are drastically reduced to a degree that is not comparable to the heat insulating material A. Thereby, the effect of the heat insulating material B in a present Example has been confirmed.
以上のように本実施例では、ガラス繊維を母材とした繊維シートであるグラスウールシート２，３，４を複数枚積層してなる芯材１１と、この芯材１１を内部に被覆する外被材１４とを備え、前記外被材１４の内部を減圧密封した断熱材としての真空断熱材１において、外被材１４に接する芯材１１の面である一側面１１ａと他側面１１ｂが、何れもグラスウールシート２の脱水側面である裏側面２ｂとグラスウールシート４の脱水側面である裏側面４ｂとなるように、各グラスウールシート２，３，４を積層配置しており、グラスウールシート２，３，４の裏側面２ｂ，３ｂ，４ｂには、ガラス繊維が格子状コンベアに載置し運搬されたときに、脱水と共につく跡がある。また、この脱水と共につく跡は、メッシュ状である。 As described above, in this embodiment, the core material 11 formed by laminating a plurality of glass wool sheets 2, 3, and 4, which are fiber sheets made of glass fibers as a base material, and the jacket that covers the core material 11 inside. In the vacuum heat insulating material 1 as a heat insulating material that includes the material 14 and the inside of the jacket material 14 is sealed under reduced pressure, the one side surface 11a and the other side surface 11b that are the surfaces of the core material 11 in contact with the jacket material 14 The glass wool sheets 2, 3, 4 are laminated so as to be the back side 2 b that is the dewatering side of the glass wool sheet 2 and the back side 4 b that is the dewatering side of the glass wool sheet 4. On the back side surfaces 2b, 3b and 4b of No. 4, there is a trace that is attached with dehydration when the glass fiber is placed on a lattice conveyor and transported . Moreover, the trace which accompanies this dehydration is mesh shape.
このようにすると、真空断熱材１を製造する過程で、ガラスショット５が多く残存するグラスウールシート２，３，４の表側面２ａ，３ａ，４ａには、袋状の外被材１４の内面が接することはなく、積層する各グラスウールシート２，３，４の表側面２ａ，３ａ，４ａは、何れも外方に露出せずに芯材１１の内部に位置することになる。そのため、ガラスショット５が外被材１４を損傷することがなくなり、外被材１４の損傷を激減させて、断熱性能の劣化を防ぐことができる。また、これはグラスウールシート２，３，４のスラリー濃度を低下させることなく達成できるので、脱水時間を増やすことなく生産性を維持できる。 If it does in this way, in the process of manufacturing the vacuum heat insulating material 1, the inner surface of the bag-shaped outer covering material 14 will be on the front side surfaces 2a, 3a, 4a of the glass wool sheets 2, 3, 4 where many glass shots 5 remain. The front side surfaces 2a, 3a, and 4a of the glass wool sheets 2, 3, and 4 to be stacked are not exposed to the outside and are positioned inside the core member 11 without being in contact with each other. Therefore, the glass shot 5 does not damage the jacket material 14, and the damage of the jacket material 14 can be drastically reduced to prevent the heat insulation performance from deteriorating. Moreover, since this can be achieved without reducing the slurry concentration of the glass wool sheets 2, 3 and 4, productivity can be maintained without increasing the dehydration time.
したがって、本実施例の真空断熱材１であれば、グラスウールシート２，３，４の生産性を低下させることなく、長期にわたり外被材１４のリークやスローリークを防いで、断熱性能の信頼性を確保できる。 Therefore, with the vacuum heat insulating material 1 of the present embodiment, the reliability of the heat insulating performance can be prevented by preventing the leakage and slow leak of the jacket material 14 over a long period of time without reducing the productivity of the glass wool sheets 2, 3, 4. Can be secured.
また、芯材１１の製造工程において、ガラス繊維が格子状コンベアに載置し運搬されたときに、脱水と共につく跡によって、グラスウールシート２，３，４の脱水側面が、表側面２ａ，３ａ，４ａではなく裏側面２ｂ，３ｂ，４ｂであることがわかる。 Moreover, in the manufacturing process of the core material 11, when the glass fiber is placed and transported on the lattice conveyor, the dewatering side surfaces of the glass wool sheets 2, 3 and 4 become the front side surfaces 2a, 3a, It can be seen that the back side surfaces 2b, 3b, 4b are not 4a.
なお、本発明は上記実施例に限定されるものではなく、本発明の趣旨を逸脱しない範囲で変更可能である。例えば、グラスウールシート２，３，４の積層枚数は実施例に示す３枚に限定されない。また、繊維シートの材質はグラスウールシート２，３，４のようなガラスに限らず、他の材質のものを利用してもよい。 In addition, this invention is not limited to the said Example, It can change in the range which does not deviate from the meaning of this invention. For example, the number of laminated glass wool sheets 2, 3, and 4 is not limited to three as shown in the examples. The material of the fiber sheet is not limited to glass such as the glass wool sheets 2, 3, and 4, and other materials may be used.
１ 真空断熱材（断熱材）
２，３，４ グラスウールシート（繊維シート）
２ｂ，３ｂ，４ｂ 裏側面（脱水側面）
１１ 芯材
１４ 外被材
1 Vacuum insulation (insulation)
2,3,4 glass wool sheet (fiber sheet)
2b, 3b, 4b Back side (dewatering side)
11 Core material 14 Jacket material
Claims (2)
前記外被材に接する前記芯材の面を、前記繊維シートの脱水側面とし、該脱水側面には、前記ガラス繊維が格子状コンベアに載置し運搬されたときに、脱水と共につく跡があることを特徴とする断熱材。 In a heat insulating material comprising a core material formed by laminating a plurality of fiber sheets made of glass fiber as a base material, and a jacket material covering the core material, and the inside of the jacket material being sealed under reduced pressure,
The surface of the core material in contact with the jacket material is a dewatering side surface of the fiber sheet, and the dewatering side surface has a trace that is attached with dehydration when the glass fiber is placed and transported on a lattice conveyor. Insulation characterized by that.
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| JP2010038435A JP5129279B2 (en) | 2010-02-24 | 2010-02-24 | Insulation |
| CN201010176488.5A CN102162567B (en) | 2010-02-24 | 2010-05-10 | Heat-insulating material |
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| WO2014087834A1 (en) * | 2012-12-07 | 2014-06-12 | 旭硝子株式会社 | Heat-insulating material and manufacturing process therefor, and insulation method |
| JP6070269B2 (en) * | 2013-02-27 | 2017-02-01 | 東芝ホームテクノ株式会社 | Insulation |
| CN104089146A (en) * | 2013-03-24 | 2014-10-08 | 苏州维艾普新材料股份有限公司 | Deformable composite insulation board and production method thereof |
| CN104930800A (en) * | 2014-03-19 | 2015-09-23 | 三菱电机株式会社 | Vacuum heat-insulating material, heat-insulating box, and production method for vacuum heat-insulating material |
| JP6486079B2 (en) * | 2014-11-21 | 2019-03-20 | 東芝ライフスタイル株式会社 | Method for maintaining heat insulation performance of vacuum insulation panel and method for maintaining heat insulation performance of refrigerator |
| GB2545212B (en) * | 2015-12-09 | 2018-08-15 | Jaguar Land Rover Ltd | Powertrain system having thermally insulating panel for a vehicle |
| WO2017221687A1 (en) * | 2016-06-21 | 2017-12-28 | パナソニックＩｐマネジメント株式会社 | Heat insulating material and method for manufacturing same |
| SI3508771T1 (en) * | 2016-09-02 | 2022-07-29 | Mag-Isover K.K. | Vacuum insulation panel |
| JP2018200106A (en) * | 2018-08-08 | 2018-12-20 | 東芝ホームテクノ株式会社 | Heat insulation body |
| JP6778774B2 (en) * | 2019-02-18 | 2020-11-04 | 東芝ライフスタイル株式会社 | Manufacturing method of vacuum insulation panel |
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| JP3914908B2 (en) * | 2003-09-29 | 2007-05-16 | 日立アプライアンス株式会社 | Vacuum insulation |
| CN1657282A (en) * | 2004-02-04 | 2005-08-24 | 松下电器产业株式会社 | Vacuum thermally insulating material and method for production thereof, thermally insulated equipment having the vacuum thermally insulating material, and thermally insulated board |
| JP4438466B2 (en) * | 2004-03-18 | 2010-03-24 | 日本板硝子株式会社 | Vacuum heat insulating material and method for producing inorganic fiber sheet for vacuum heat insulating material |
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| CN101469804A (en) * | 2007-12-26 | 2009-07-01 | 成都思摩纳米技术有限公司 | Novel evacuated insulation plate and manufacturing method thereof |
| JP2009210072A (en) * | 2008-03-05 | 2009-09-17 | Nippon Sheet Glass Co Ltd | Vacuum heat insulating material |
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