JPH0890516A - Consolidating method for timber - Google Patents
Consolidating method for timberInfo
- Publication number
- JPH0890516A JPH0890516A JP22714794A JP22714794A JPH0890516A JP H0890516 A JPH0890516 A JP H0890516A JP 22714794 A JP22714794 A JP 22714794A JP 22714794 A JP22714794 A JP 22714794A JP H0890516 A JPH0890516 A JP H0890516A
- Authority
- JP
- Japan
- Prior art keywords
- wood
- closed space
- pressure
- pressing means
- timber
- 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
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は木材の圧密方法に関す
る。FIELD OF THE INVENTION The present invention relates to a method for compacting wood.
【０００２】[0002]
【従来の技術】針葉樹材などの木材に水蒸気などの水分
を供給したうえで熱プレス加工することで、この木材を
繊維と直角な方向に圧密させ、それによって表面性能を
改善する試みがなされている。しかし、このように普通
に水熱圧密処理を行っただけでは、その後に水分と熱が
作用すると木材の厚みが元の状態に回復してしまうこと
が知られている。2. Description of the Related Art An attempt has been made to improve the surface performance of wood such as softwood by supplying water such as steam and then hot pressing the wood to consolidate the wood in a direction perpendicular to the fibers. There is. However, it is known that just by carrying out the normal hydrothermal consolidation treatment as described above, the thickness of the wood will be restored to the original state when water and heat act thereafter.
【０００３】最近、このような元の状態への回復を阻止
して、圧密した木材を圧縮変形状態に永久固定する手法
が開発されている。すなわち、１８０℃程度以上の温度
で熱プレス加工する際に木材の周囲を密閉し、木材に含
まれる水分をその木材中に閉じ込めたうえで高温高圧で
水熱処理すると、顕著な回復抑制効果が現れて、もはや
元の厚みには戻らないことが確認されている。Recently, a method has been developed in which the recovery of the original state is prevented and the consolidated wood is permanently fixed in the compressed deformation state. That is, when heat-pressing at a temperature of about 180 ° C or higher, the periphery of wood is sealed, water contained in wood is confined in the wood, and hydrothermal treatment is performed at high temperature and high pressure, resulting in a remarkable recovery suppressing effect. It has been confirmed that it will no longer return to its original thickness.
【０００４】[0004]
【発明が解決しようとする課題】ところが、このように
高温高圧で水熱処理された木材を、処理後に直ちに熱プ
レス機から取り出すと、木材中に含まれていた高温高圧
の水蒸気の作用によって、この木材の表面にパンクと呼
ばれる膨らみが発生しやすい。However, when the wood hydrothermally treated at high temperature and high pressure as described above is taken out from the hot press immediately after the treatment, the high temperature and high pressure steam contained in the wood causes Swelling called puncture easily occurs on the surface of wood.
【０００５】このため従来は、このような膨らみの発生
を防止するために、水熱処理後にプレス状態を維持した
まま熱プレス機を水冷するなどして、この熱プレス機と
ともに圧密化木材をたとえば６０℃程度まで冷却し、そ
の後に取り出しを行っている。Therefore, conventionally, in order to prevent the occurrence of such a bulge, the hot press machine is water-cooled while maintaining the pressed state after the hydrothermal treatment, and the consolidated wood is heated to 60 with the hot press machine. It is cooled down to about ℃ and then taken out.
【０００６】しかし、一つの木材の処理を行った後に次
の木材の処理を行おうとすると、再び熱プレス機を高温
に加熱しなければならず、そのためにエネルギが必要に
なるとともに、その再加熱に時間を要するという問題点
がある。However, when one wood is processed and then the next wood is processed, the heat press must be heated again to a high temperature, which requires energy and reheats it. There is a problem that it takes time.
【０００７】そこで本発明はこのような問題点を解決
し、エネルギや時間を多大に消費することなしに、圧密
化した木材の表面における膨らみの発生を防止できるよ
うにすることを目的とする。Therefore, an object of the present invention is to solve such a problem and to prevent the occurrence of a bulge on the surface of the consolidated wood without consuming a large amount of energy and time.
【０００８】[0008]
【課題を解決するための手段】この目的を達成するため
本発明は、密閉構造の熱プレス手段によって木材を密閉
空間内で圧縮しながら加熱することで、この木材中の水
分を加圧水蒸気化させて、この木材を水熱処理により圧
縮変形状態に固定させ、その後、前記熱プレス手段によ
るプレス状態を維持したまま前記密閉空間内を減圧させ
るものである。In order to achieve this object, the present invention heats the wood while compressing it in a closed space by means of a hot pressing means having a closed structure, so that the water in the wood is steamed under pressure. Then, the wood is fixed in a compressed and deformed state by hydrothermal treatment, and then the pressure in the closed space is reduced while maintaining the pressed state by the hot pressing means.
【０００９】[0009]
【作用】このようにすれば、密閉空間内を減圧させるこ
とで、木材中に含まれる水蒸気がこの密閉空間内に放出
されるため、水熱処理後にこの木材を加熱状態のまま熱
プレス手段から取り出す際にこの木材の表面に膨らみが
生じることが防止される。このため、従来のように熱プ
レス手段の大幅な冷却や再加熱を行うことが不要となっ
て、エネルギ消費の低減や処理時間の短縮が図られる。In this way, by reducing the pressure in the closed space, the water vapor contained in the wood is released into the closed space. Therefore, after the hydrothermal treatment, the wood is taken out from the hot press means in the heated state. In this case, the bulge on the surface of the wood is prevented. For this reason, it is not necessary to significantly cool or reheat the hot pressing means as in the conventional case, and energy consumption and processing time can be reduced.
【００１０】密閉空間内の減圧は、この空間内を大気に
開放することによって行うことができる。このとき、水
熱処理の直後の密閉空間内は高温かつ高圧の状態にある
ため、たとえば密閉空間内を大気に開放させる管路に絞
り弁を設けて、この絞り弁を徐々に開くなどするのが好
ましい。The decompression in the closed space can be performed by opening the space to the atmosphere. At this time, since the closed space is in a high temperature and high pressure state immediately after the hydrothermal treatment, for example, a throttle valve may be provided in a pipeline that opens the closed space to the atmosphere, and the throttle valve may be gradually opened. preferable.
【００１１】密閉空間内を減圧させるときには、熱プレ
ス手段によるプレス状態を一時的に緩めるのが好まし
い。このようにすると、熱プレス手段のプレス面が木材
からわずかに浮き上がり、その浮き上がり部における木
材の表面から水蒸気が放出されることになって、効率の
良い放出が可能になる。実験によると、熱プレス手段に
よるプレス状態を緩めることと、緩めたプレス状態を再
び強めることとを複数回繰り返すことで、きわめて効率
良く水蒸気を放出させることが可能であった。When the pressure in the closed space is reduced, it is preferable to temporarily loosen the pressed state by the hot pressing means. By doing so, the pressing surface of the hot pressing means is slightly lifted from the wood, and the steam is released from the surface of the wood in the lifted portion, which enables efficient release. According to the experiment, it was possible to release the steam very efficiently by repeating the loosening of the pressed state by the hot pressing means and the strengthening of the loosened pressed state a plurality of times.
【００１２】密閉空間内を減圧させるときに、大気圧未
満の負圧を導入することができる。そうすると、木材の
周囲がよりいっそう減圧されるとともに、木材内の水分
が気化されやすくなるため、さらに効率良く短時間のう
ちに水蒸気を放出させることができる。When decompressing the enclosed space, a negative pressure below atmospheric pressure can be introduced. Then, the pressure around the wood is further reduced, and the moisture in the wood is easily vaporized, so that the steam can be more efficiently released in a short time.
【００１３】密閉空間内を減圧させるときに、熱プレス
手段の内部を水冷するなどしてその温度を低下させる
と、それにつれて木材の温度も低下し、その表面に膨ら
みが発生しなくなる状態に速やかに移行する。したがっ
て、この温度低下効果と前述の減圧効果との相乗効果に
よって、水熱処理後の木材を迅速に熱プレス手段から取
り出すことが可能となる。ただし、熱プレス手段の温度
をあまり大幅に低下させると、従来の場合と同様の再加
熱の問題が発生するため、その低下の程度には限度があ
る。すなわち、再加熱にエネルギや時間を多大に消費せ
ず、しかも迅速な作業が可能なような調和点での処理が
必要になり、この調和点は、生産性や経済性などの観点
にしたがって決定される。When the pressure in the closed space is reduced, the temperature of the wood is lowered by cooling the inside of the hot press means with water or the like, and the temperature of the wood is also lowered accordingly, so that the surface does not bulge quickly. Move to. Therefore, due to the synergistic effect of this temperature lowering effect and the above-mentioned pressure reducing effect, it becomes possible to quickly take out the wood after the hydrothermal treatment from the hot pressing means. However, if the temperature of the hot pressing means is lowered too much, the same reheating problem as in the conventional case occurs, so that the extent of the decrease is limited. That is, it is necessary to perform processing at a harmony point that does not consume much energy or time for reheating and that enables quick work. This harmony point is determined according to the viewpoints of productivity and economical efficiency. To be done.
【００１４】また密閉空間内を減圧させるときに、この
密閉空間内に冷却空気を導入して木材の温度を低下させ
ることによっても、その木材の表面に膨らみが発生しな
くなる状態を早期に実現可能となる。この冷却空気の導
入は、上述のように大気圧未満の負圧を導入しながら行
うのが効果的である。Further, when the pressure in the closed space is reduced, cooling air is introduced into the closed space to lower the temperature of the wood, so that the bulge does not occur on the surface of the wood can be realized at an early stage. Becomes It is effective to introduce the cooling air while introducing a negative pressure below atmospheric pressure as described above.
【００１５】熱プレス手段における木材をプレスする面
をセラミックなどの多孔質の材料で形成すれば、木材か
らの水蒸気は、この多孔質の材料からなるプレス面を通
過して良好に放出される。If the surface of the hot pressing means for pressing the wood is made of a porous material such as ceramics, the water vapor from the wood passes through the pressing surface made of the porous material and is satisfactorily released.
【００１６】[0016]
【実施例】図１および図２において、11は木材の圧密装
置であり、金属製の下側の熱板12と、この下側の熱板12
の上方に昇降可能に設けられた金属製の上側の熱板13と
によって、熱プレス装置を構成している。下側の熱板12
の中央部には凹部14が形成されており、また上側の熱板
13には、凹部14に対応した凸部15が形成されている。凹
部14の中には板状の木材16を収容可能であり、この木材
16は、上側の熱板13が下降して下側の熱板12に接近した
ときに、凹部14と凸部15とで挟み込まれて熱プレスされ
るようになっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2, reference numeral 11 denotes a wood consolidating device, which is a lower metal heating plate 12 and a lower heating plate 12 made of metal.
A heat press device is constituted by the upper metal heat plate 13 which is provided above and below and is movable up and down. Lower heat plate 12
A recess 14 is formed in the center of the
A convex portion 15 corresponding to the concave portion 14 is formed on the portion 13. A plate-shaped wood 16 can be accommodated in the recess 14, and
When the upper heat plate 13 descends and approaches the lower heat plate 12, 16 is sandwiched between the concave portion 14 and the convex portion 15 and hot pressed.
【００１７】下側の熱板12における凹部14の周囲にはＯ
リング17が設けられており、上側の熱板13が下降してこ
のＯリング17を圧縮することによって、このＯリング17
に囲まれた内側の部分に、凹部14と凸部15とを含んだ密
閉空間18が形成されるように構成されている。O around the recess 14 in the lower heating plate 12
A ring 17 is provided, and the upper heating plate 13 descends to compress the O-ring 17 so that the O-ring 17
A closed space 18 including a concave portion 14 and a convex portion 15 is formed in an inner portion surrounded by.
【００１８】凹部14には密閉空間18に連通する一対の連
通孔19、20が形成されており、一方の連通孔19は、熱板
12の外部において圧力計21に接続されている。他方の連
通孔20は大気に開放された排気管22に連通されており、
この排気管22には絞り弁23が設けられている。A pair of communication holes 19 and 20 communicating with the closed space 18 are formed in the recess 14, and one communication hole 19 is a hot plate.
It is connected to a pressure gauge 21 outside of 12. The other communication hole 20 is connected to an exhaust pipe 22 that is open to the atmosphere,
The exhaust pipe 22 is provided with a throttle valve 23.
【００１９】次に木材16の圧密処理を説明する。たとえ
ば木材16が杉板である場合には、上下の熱板12、13をあ
らかじめ 180℃程度に加熱した状態で、凹部14の中にこ
の木材16を収容し、上側の熱板13を降下させて、凹部14
と凸部15との間でこの木材16を圧縮する。このとき、木
材16は水分を含有するものを使用し、30〜50kgf/cm2程
度の圧力で繊維と直角な方向に横圧縮させて、当初に比
べ50％程度以下の板厚となるように圧密する。Next, the consolidation treatment of the wood 16 will be described. For example, when the wood 16 is a cedar board, the wood 16 is housed in the recess 14 with the upper and lower heat plates 12, 13 preheated to about 180 ° C., and the upper heat plate 13 is lowered. The recess 14
The wood 16 is compressed between the convex portion 15 and the convex portion 15. At this time, the wood 16 used contains water, and is laterally compressed in a direction perpendicular to the fibers with a pressure of about 30 to 50 kgf / cm 2 so that the plate thickness is about 50% or less compared to the original. Consolidate.
【００２０】このように木材16をプレスすると、同時に
上下の熱板12、13によってＯリング17が圧縮され、その
内側に密閉空間18が形成される。そこで、その状態で数
分〜十数分おくと、熱板12、13からの熱によって木材16
の内部の水分が蒸発し、密閉空間18内で10kgf/cm2 程度
の活性水蒸気となって木材16に作用する。その結果、木
材16は、水熱処理されてその圧縮変形の状態に固定され
る。このときの密閉空間18内における活性水蒸気の圧力
は、圧力計21によってモニタされる。When the wood 16 is pressed in this manner, the O-ring 17 is simultaneously compressed by the upper and lower heat plates 12 and 13, and the closed space 18 is formed inside thereof. Therefore, if you leave it in that state for a few minutes to a dozen minutes, the wood 16 will be heated by the heat from the heat plates 12 and 13.
The water in the inside of the wood evaporates and becomes active steam of about 10 kgf / cm 2 in the closed space 18 and acts on the wood 16. As a result, the wood 16 is hydrothermally treated and fixed in its compressed and deformed state. The pressure of the active water vapor in the closed space 18 at this time is monitored by the pressure gauge 21.
【００２１】木材16を圧密状態に固定するための水熱処
理に必要な時間、すなわち十数分程度が経過したなら、
上下の熱板12、13による木材16の加熱プレス状態を維持
したまま、絞り弁23を徐々に開放させて密閉空間18内を
減圧させる。そして、密閉空間18内を大気に開放した状
態で一定時間放置すると、その間に木材16内の水蒸気の
圧力も徐々に低下する。If the time required for the hydrothermal treatment for fixing the wood 16 in a consolidated state, that is, about a dozen minutes has passed,
While maintaining the hot-pressed state of the wood 16 by the upper and lower hot plates 12 and 13, the throttle valve 23 is gradually opened to reduce the pressure in the closed space 18. Then, when the closed space 18 is left open to the atmosphere and left for a certain period of time, the pressure of water vapor in the wood 16 gradually decreases during that time.
【００２２】したがって、その後に上側の熱板13を上昇
させると、圧密処理が完了して、しかも内部の水蒸気が
放出されて表面における膨らみの発生が防止された木材
16が取り出されることになる。Therefore, when the upper heating plate 13 is subsequently raised, the consolidation process is completed, and the steam inside is released to prevent the occurrence of bulge on the surface.
16 will be taken out.
【００２３】このようにすれば、従来のように熱板12、
13を大幅に冷却する必要はなくなり、またこのため、次
に圧密処理を施すための木材のために熱板12、13を時間
をかけて再加熱する必要もなくなる。その結果、エネル
ギ消費を低減させることができるとともに、その分の処
理時間を短縮させることもできる。In this way, the heating plate 12,
It is no longer necessary to significantly cool 13 and thus the need to reheat the hot plates 12, 13 over time for the wood to be subsequently consolidated. As a result, energy consumption can be reduced and the processing time can be shortened accordingly.
【００２４】密閉空間18内を減圧させるときには、熱板
12、13による圧縮圧力を低下させることによって、木材
16のプレス状態を一時的に緩めるようにするのが好まし
い。このようにすると、熱板12、13のプレス面が木材16
からわずかに浮き上がり、その浮き上がり部における木
材16の表面から水蒸気が放出されることになって、効率
の良い放出が可能になる。When the pressure inside the closed space 18 is reduced,
Wood by reducing the compression pressure by 12,13
It is preferable to temporarily loosen the 16 pressed states. In this way, the pressing surfaces of the hot plates 12 and 13 are made of wood 16.
The water vapor is slightly lifted from the surface, and water vapor is released from the surface of the wood 16 in the raised portion, which enables efficient release.
【００２５】具体的には、絞り弁23を開放させた当初に
は排気管22からの多量の水蒸気の放出が確認されるが、
ある程度の時間が経過すると、その放出量が低下する。
そこで、上述のようにプレス状態を一時的に緩めると、
再び排気管22からの多量の水蒸気の放出が確認される。Specifically, when the throttle valve 23 is opened, it is confirmed that a large amount of water vapor is discharged from the exhaust pipe 22.
The release amount decreases after a certain amount of time.
Therefore, if you temporarily loosen the press condition as described above,
It is confirmed again that a large amount of water vapor is discharged from the exhaust pipe 22.
【００２６】このように一時的にプレス状態を緩めた場
合にも、時間の経過とともに水蒸気の放出量は低下する
が、その後に再び熱板12、13による圧縮圧力を上昇さ
せ、そのまま一定時間をおき、かつ再度プレス状態を一
時的に緩めることによって、同様に排気管22からの多量
の水蒸気の放出が確認される。結局、熱板12、13による
プレス状態を緩めることと、緩めたプレス状態を再び強
めることとを複数回にわたり繰り返すことで、きわめて
効率良く短時間で水蒸気を放出させることができる。Even when the pressed state is temporarily loosened in this way, the amount of water vapor released decreases with the passage of time, but after that, the compression pressure by the hot plates 12 and 13 is increased again, and the fixed time is maintained as it is. The discharge of a large amount of water vapor from the exhaust pipe 22 is similarly confirmed by holding the press state and then temporarily loosening the pressed state again. After all, by repeating the loosening of the pressed state by the hot plates 12 and 13 and the strengthening of the loosened pressed state a plurality of times, it is possible to release the steam very efficiently in a short time.
【００２７】なお、上記においては、絞り弁23を用いて
密閉空間18内を大気に開放させる場合について説明した
が、他の手法によって高圧の密閉空間18内を減圧させる
ことも、もちろん可能である。さらに、排気管22を利用
するなどして密閉空間18内に大気圧未満の負圧を導入す
ることも可能であり、そのようにすると、木材16の周囲
がいっそう減圧されるとともに、木材16の内部の水分が
気化されやすくなるため、いっそう効率良く水蒸気を放
出させることができる。In the above description, the case where the throttle valve 23 is used to open the closed space 18 to the atmosphere has been described, but it is of course possible to reduce the pressure in the high pressure closed space 18 by another method. . Furthermore, it is also possible to introduce a negative pressure below atmospheric pressure into the closed space 18 by using the exhaust pipe 22, etc., and by doing so, the pressure around the wood 16 is further reduced and at the same time the wood 16 Since the water content inside is easily vaporized, the water vapor can be released more efficiently.
【００２８】密閉空間18内を減圧させるときに、熱板1
2、13の内部をわずかに水冷するなどしてその温度を若
干低下させると、それにつれて木材16の温度も低下し、
この木材16の表面に膨らみが発生しなくなる状態に速や
かに移行させることができる。したがって、温度低下効
果と減圧効果との相乗効果によって、水熱処理後の木材
16を迅速に圧密装置11から取り出すことが可能となる。
ただし、熱板12、13の温度をあまり大幅に低下させる
と、従来の場合と同様の再加熱の問題が発生するため、
上述のように 180℃程度で水熱処理した場合には、 150
℃程度までの冷却に止めておくことが必要である。そう
することで、再加熱時に実質的なエネルギや時間の消費
の問題が発生することが防止される。When the pressure inside the closed space 18 is reduced, the hot plate 1
By slightly cooling the inside of 2, 13 by slightly cooling its temperature, the temperature of the wood 16 also decreases, and
It is possible to quickly shift to a state where no bulge occurs on the surface of the wood 16. Therefore, due to the synergistic effect of the temperature lowering effect and the pressure reducing effect, the wood after hydrothermal treatment is
It is possible to quickly remove 16 from the consolidation device 11.
However, if the temperature of the heating plates 12 and 13 is lowered too much, the same reheating problem as in the conventional case occurs,
When hydrothermally treated at about 180 ° C as described above, 150
It is necessary to keep cooling down to about ℃. By doing so, the problem of substantial energy and time consumption during reheating is prevented.
【００２９】また密閉空間18内を減圧させるときに、こ
の密閉空間18内に冷却空気を導入して木材の温度を低下
させることによっても、その木材の表面に膨らみが発生
しなくなる状態を迅速に実現可能である。この冷却空気
の導入は、たとえば排気管22と同様の構成の空気供給管
を凹部14に連通させることによって実現することができ
る。このような冷却空気の導入は、上述のように大気圧
未満の負圧を導入しながら行うのが効果的である。When the pressure in the closed space 18 is reduced, cooling air is introduced into the closed space 18 to lower the temperature of the wood so that the bulge does not occur on the surface of the wood quickly. It is feasible. The introduction of the cooling air can be realized, for example, by connecting an air supply pipe having the same structure as the exhaust pipe 22 to the recess 14. It is effective to introduce such cooling air while introducing a negative pressure below atmospheric pressure as described above.
【００３０】熱板12、13における木材16をプレスする面
は、セラミックなどの多孔質の材料で形成することがで
きる。このようにすれば、木材16におけるプレスを受け
る面からの水蒸気は、この多孔質の材料からなるプレス
面を通過して良好に放出される。このため、上述のプレ
ス状態を一時的に緩めることを導入しなくても効率良く
水蒸気を排出することができ、またこれを導入して両者
を併用すれば、よりいっそう効率良く水蒸気を放出させ
ることが可能である。The surface of the heating plates 12 and 13 on which the wood 16 is pressed can be formed of a porous material such as ceramics. By doing so, the water vapor from the surface of the wood 16 that receives the press passes satisfactorily and is discharged through the press surface made of this porous material. Therefore, steam can be efficiently discharged without introducing the temporary loosening of the above-mentioned pressed state, and by introducing this and using both in combination, steam can be released more efficiently. Is possible.
【００３１】[0031]
【発明の効果】以上述べたように本発明によると、熱プ
レス手段によって密閉空間内の木材を水熱処理により圧
縮変形状態に固定させた後に、その熱プレス手段による
プレス状態を維持したままその密閉空間内を減圧させる
ため、木材中に含まれる水蒸気をこの密閉空間内に放出
させることができて、水熱処理後にこの木材を熱プレス
手段から取り出す際にこの木材の表面に膨らみが生じる
ことを防止でき、このときに従来のように熱プレス手段
を大幅に冷却する必要がなく、かつそれに伴う熱プレス
手段の再加熱も不要であるため、エネルギ消費の低減や
処理時間の短縮を図ることができる。As described above, according to the present invention, after the wood in the closed space is fixed in the compressed deformation state by the hydrothermal treatment by the hot pressing means, the wood is hermetically closed while the pressed state by the hot pressing means is maintained. Since the space is decompressed, the water vapor contained in the wood can be released into this closed space, preventing bulging of the wood surface when the wood is taken out of the hot pressing means after hydrothermal treatment. At this time, it is not necessary to significantly cool the hot pressing means as in the conventional case, and reheating of the hot pressing means accompanying it is not necessary, so that energy consumption and processing time can be reduced. .
【図１】本発明の方法を実施するための木材の圧密装置
の要部の斜視図である。FIG. 1 is a perspective view of a main part of a wooden compacting device for carrying out the method of the present invention.
【図２】同圧密装置の要部の断面図である。FIG. 2 is a sectional view of a main part of the compaction device.
12 熱板 13 熱板 16 木材 17 Ｏリング 18 密閉空間 22 排気管 23 絞り弁 12 Hot plate 13 Hot plate 16 Wood 17 O-ring 18 Closed space 22 Exhaust pipe 23 Throttle valve
Claims (8)
密閉空間内で圧縮しながら加熱することで、この木材中
の水分を加圧水蒸気化させて、この木材を水熱処理によ
り圧縮変形状態に固定させ、その後、前記熱プレス手段
によるプレス状態を維持したまま前記密閉空間内を減圧
させることを特徴とする木材の圧密方法。1. The wood is heated while being compressed in a closed space by means of a heat-pressing means having a closed structure, whereby water in the wood is pressurized and steamed, and the wood is fixed in a compressed deformation state by hydrothermal treatment. After that, the method for consolidating wood is characterized in that the inside of the closed space is depressurized while maintaining the pressed state by the hot pressing means.
って減圧を行うことを特徴とする請求項１記載の木材の
圧密方法。2. The method for consolidating wood according to claim 1, wherein decompression is performed by opening the closed space to the atmosphere.
ス手段によるプレス状態を一時的に緩めることを特徴と
する請求項１または２記載の木材の圧密方法。3. The method for consolidating wood according to claim 1 or 2, wherein when the pressure in the closed space is reduced, the pressed state by the hot pressing means is temporarily relaxed.
ことと、緩めたプレス状態を再び強めることとを繰り返
すことを特徴とする請求項３記載の木材の圧密方法。4. The method for consolidating wood according to claim 3, wherein loosening the pressed state by the hot pressing means and strengthening the relaxed pressed state are repeated.
満の負圧を導入することを特徴とする請求項１から４ま
でのいずれか１項記載の木材の圧密方法。5. The method for consolidating wood according to any one of claims 1 to 4, wherein a negative pressure less than atmospheric pressure is introduced when decompressing the closed space.
手段の温度を低下させることを特徴とする請求項１から
５までのいずれか１項記載の木材の圧密方法。6. The method for consolidating wood according to claim 1, wherein the temperature of the hot pressing means is lowered when the pressure in the closed space is reduced.
空間内に冷却空気を導入して木材の温度を低下させるこ
とを特徴とする請求項１から６までのいずれか１項記載
の木材の圧密方法。7. The wood according to any one of claims 1 to 6, wherein cooling air is introduced into the closed space to reduce the temperature of the wood when the pressure in the closed space is reduced. Consolidation method.
の木材の圧密方法を実施するための圧密装置であって、
熱プレス手段における木材をプレスする面を多孔質の材
料で形成したことを特徴とする木材の圧密装置。8. A compacting device for carrying out the method for compacting wood according to claim 1.
A wood compacting device, wherein a surface of the hot pressing means for pressing wood is formed of a porous material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22714794A JP2578322B2 (en) | 1994-09-22 | 1994-09-22 | Wood compaction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22714794A JP2578322B2 (en) | 1994-09-22 | 1994-09-22 | Wood compaction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0890516A true JPH0890516A (en) | 1996-04-09 |
| JP2578322B2 JP2578322B2 (en) | 1997-02-05 |
Family
ID=16856234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22714794A Expired - Fee Related JP2578322B2 (en) | 1994-09-22 | 1994-09-22 | Wood compaction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2578322B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007008053A (en) * | 2005-06-30 | 2007-01-18 | Mywood 2 Kk | Manufacturing method of plastic-processed timber and its manufacturing method |
| JP2007008047A (en) * | 2005-06-30 | 2007-01-18 | Aichi Prefecture | Manufacturing apparatus of plastic-processed timber and its manufacturing method |
| JP2007112030A (en) * | 2005-10-21 | 2007-05-10 | Mywood 2 Kk | Laminated plastic-worked lumber |
| JP2007112029A (en) * | 2005-10-21 | 2007-05-10 | Mywood 2 Kk | Surface plastic-worked lumber, apparatus for its manufacture and its manufacturing method |
| JP2007130774A (en) * | 2005-11-08 | 2007-05-31 | Aichi Prefecture | Manufacturing method of plastically processed wood |
| US8216506B2 (en) | 2007-06-11 | 2012-07-10 | National University Corporation Kyoto Institute Of Technology | Method of processing plant |
-
1994
- 1994-09-22 JP JP22714794A patent/JP2578322B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007008053A (en) * | 2005-06-30 | 2007-01-18 | Mywood 2 Kk | Manufacturing method of plastic-processed timber and its manufacturing method |
| JP2007008047A (en) * | 2005-06-30 | 2007-01-18 | Aichi Prefecture | Manufacturing apparatus of plastic-processed timber and its manufacturing method |
| JP2007112030A (en) * | 2005-10-21 | 2007-05-10 | Mywood 2 Kk | Laminated plastic-worked lumber |
| JP2007112029A (en) * | 2005-10-21 | 2007-05-10 | Mywood 2 Kk | Surface plastic-worked lumber, apparatus for its manufacture and its manufacturing method |
| JP2007130774A (en) * | 2005-11-08 | 2007-05-31 | Aichi Prefecture | Manufacturing method of plastically processed wood |
| US8216506B2 (en) | 2007-06-11 | 2012-07-10 | National University Corporation Kyoto Institute Of Technology | Method of processing plant |
| JP4997650B2 (en) * | 2007-06-11 | 2012-08-08 | 国立大学法人京都工芸繊維大学 | Plant processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2578322B2 (en) | 1997-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0339952B1 (en) | Method for steam pressing compressible material | |
| US4162877A (en) | Method and apparatus for consolidating particle board | |
| EP0699120B1 (en) | Method for compressive shape-drying of wood | |
| JPH0890516A (en) | Consolidating method for timber | |
| RU2220841C2 (en) | Method for steam pressing of fiber board having at least one finishing surface | |
| JP2004522623A (en) | How to treat and dry wood | |
| JP3813690B2 (en) | Dimensional stabilization treatment method for wood | |
| AR006036A1 (en) | A PRESSING METHOD OF A TISSUE FORMED OF FINALLY DIVIDED LIGNOCELLULOSIC FIBER MATERIAL PRIOR TO PRESSING THE TISSUE IN A STATE FINISHED IN THE CONTINUOUS MANUFACTURE OF CARDBOARD MATERIAL | |
| RU2001103649A (en) | METHOD FOR STEAM PRESSING OF A WOOD AND FIBROUS PLATE HAVING AT LEAST A ONE FINISHED SURFACE | |
| JP3092966B2 (en) | Wood drying method and drying equipment | |
| JP2000292056A (en) | Method for press drying and press dryer used therefor | |
| JP3986609B2 (en) | Wood drying equipment | |
| JP3002197B1 (en) | Press compression method of wood material and press device used in this method | |
| JP2007261041A (en) | Method for preventing occurrence of wood breaking | |
| JP3148501B2 (en) | Wood material heat treatment method | |
| JP3136048B2 (en) | How to stabilize wood | |
| JP3813938B2 (en) | Dimensional stabilization treatment method for wood | |
| JP3892531B2 (en) | Dimensional stabilization method for wood | |
| JP3442229B2 (en) | Dimensional stabilization method for wood | |
| KR100276108B1 (en) | Manufacturing method of hard wood | |
| JP3062369B2 (en) | Wood material heat treatment method | |
| JP3660096B2 (en) | Dimensional stabilization method for wood | |
| JP2004345175A (en) | Heat treatment method for wood | |
| JP3375521B2 (en) | Wood compression dewatering equipment | |
| JP3179847B2 (en) | Curing method of fiber cement board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 12 Free format text: PAYMENT UNTIL: 20081107 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 13 Free format text: PAYMENT UNTIL: 20091107 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 14 Free format text: PAYMENT UNTIL: 20101107 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101107 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111107 Year of fee payment: 15 |
|
| LAPS | Cancellation because of no payment of annual fees |