JP2505137B2 - Detonation hydraulic pressure generation method and device - Google Patents
Detonation hydraulic pressure generation method and deviceInfo
- Publication number
- JP2505137B2 JP2505137B2 JP3152278A JP15227891A JP2505137B2 JP 2505137 B2 JP2505137 B2 JP 2505137B2 JP 3152278 A JP3152278 A JP 3152278A JP 15227891 A JP15227891 A JP 15227891A JP 2505137 B2 JP2505137 B2 JP 2505137B2
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- hydraulic pressure
- pressure
- combustion chamber
- detonation
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/001—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by explosive charges
Description
【０００１】[0001]
【産業上の利用分野】本発明は簡便に高圧の衝撃液圧を
得られる爆轟液圧発生方法及び装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detonation liquid pressure generating method and device which can easily obtain a high impact liquid pressure.
【０００２】[0002]
【従来の技術】一方の面が金型で支持された板材等の部
材の他方の面に液圧を作用せしめて三次元成形を行う場
合等においては、瞬時ではあるが極めて高い圧力を必要
とする。従来、かかる液圧を得るためにいくつかの手法
が知られている。2. Description of the Related Art In the case of performing three-dimensional molding by applying hydraulic pressure to the other surface of a member such as a plate material, one surface of which is supported by a mold, an extremely high pressure is required although it is instantaneous. To do. Heretofore, some methods are known for obtaining such a hydraulic pressure.
【０００３】例えば、先ず第一に、加圧用の水等の液体
中に弾丸を打ち込んで、衝撃液圧を液体中に発生させ、
その圧力を板材等の部材に印加して該部材を金型へ圧し
て三次元成形せんとする衝撃液圧発生装置が特開平０１
−１５７７２５号にて提案されている。For example, first of all, a bullet is driven into a liquid such as water for pressurization to generate an impact hydraulic pressure in the liquid,
An impact hydraulic pressure generating device that applies the pressure to a member such as a plate material and presses the member against a mold to form a three-dimensional molding screw is disclosed in Japanese Patent Application Laid-Open No. H01-001
It is proposed in 157725.
【０００４】また、第二には、水中で爆薬を燃焼させる
ことによって衝撃水圧を発生せしめ、その圧力で薄板の
三次元成形を行う爆発成形装置も知られている。この装
置は主として大型部品の成形に利用されている。Secondly, there is also known an explosive molding apparatus for producing an impact water pressure by burning explosives in water and performing three-dimensional molding of a thin plate by the pressure. This device is mainly used for molding large parts.
【０００５】さらには第三として、容器に収容された加
圧用の液体の液面に、ガス圧等により高速に加速された
ピストンを衝突させることにより衝撃液圧を発生させる
こととした装置も知られている。Thirdly, there is known a device in which an impact hydraulic pressure is generated by causing a piston accelerated at high speed by gas pressure to collide with the liquid surface of a liquid for pressurization contained in a container. Has been.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上述し
た第一ないし第三の装置による衝撃液圧発生の手法にあ
っては、共通のあるいはそれぞれ個有の問題を次のごと
く有している。 1. 容器内壁全面又は一部が高温高圧場に直接さらされ
ること。 2. 危険でかつ高価な爆薬を使用すること。 3. 大きな騒音を発生すること。 4. 危険性を伴うため、設置場所の制約があること。 5. 到達圧力の大幅変更が難しいこと。 6. 短時間での繰返し運転に適さないこと。 7. 大規模な設備が必要であること。 8. ピストンなどの可動部品の交換が必要であること。 9. 圧力の持続時間が長いため、成形型へのダメージが
大きいこと 10. 液圧室内に固形物等が残留すること。 11. 装置の構造が複雑であるため、保守、点検等がや
りにくいこと。 12. １ショットにて、１回の衝撃水圧しか得られない
こと。However, the above-described methods for generating the impact hydraulic pressure by the first to third devices have common or unique problems as follows. 1. All or part of the inner wall of the container is directly exposed to high temperature and high pressure field. 2. Use dangerous and expensive explosives. 3. Make loud noises. 4. There is a risk that there are restrictions on the installation location. 5. It is difficult to significantly change the ultimate pressure. 6. Not suitable for repeated operation in a short time. 7. Large-scale equipment is required. 8. Moving parts such as pistons need to be replaced. 9. Due to the long duration of pressure, the damage to the mold is large. 10. Solids etc. remain in the hydraulic chamber. 11. Due to the complicated structure of the device, it is difficult to perform maintenance and inspection. 12. Only one impact water pressure can be obtained with one shot.
【０００７】すなわち、上述の第一の手法にあっては１
〜６，８，９〜12、第二の手法では１〜７，９，10，1
2、そして第三の手法では１，４〜９，11，１2の欠点を
有している。That is, in the above first method, 1
~ 6,8,9 ~ 12, 1 ~ 7,9,10,1 in the second method
The second and third methods have the drawbacks of 1,4 to 9,11,12.
【０００８】本発明は、上述の従来の手法による諸問題
を解決し、安全で、短時間で繰返し運転でき、かつ高速
・高圧の衝撃液圧を得る方法及びそのための装置を提供
することを目的とするものである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for solving the above-mentioned problems of the conventional method, a method for obtaining a high-speed and high-pressure impact hydraulic pressure that is safe, can be repeatedly operated in a short time, and an apparatus therefor. It is what
【０００９】[0009]
【課題を解決するための手段】本発明によれば、上記目
的は、先ず爆轟液圧発生方法に関し、可燃性混合気を着
火することにより発生するデトネーション波をその進行
と共に収束し、収束部で得られる高圧を液圧室内の液体
の液面に伝達して液圧に変換することにより達成され
る。According to the present invention, the above-mentioned object relates first to a method for generating a detonation hydraulic pressure, in which a detonation wave generated by igniting a combustible air-fuel mixture is converged with its progress, and a converging section is formed. The high pressure obtained by the liquid in the hydraulic chamber
It is achieved by transmitting to the liquid surface of the and converting into hydraulic pressure.
【００１０】また、上記方法を実施するための装置に関
しては、一端部から他端部へ向け断面積が小さくなる燃
焼室と、燃料の供給を受け点火栓が配設された着火室
と、着火室から分岐して延び上記燃焼室の一端部へ連通
する路程の等しい複数の誘導路と、上記燃焼室の最小断
面積部たる他端部の開口に接続される液圧室とを備える
ことにより得られる。Further, regarding an apparatus for carrying out the above method, a combustion chamber having a smaller cross-sectional area from one end to the other end, an ignition chamber in which a fuel supply is provided and an ignition plug is disposed, and an ignition is performed. By providing a plurality of guide paths having the same path length and branching from the chamber and communicating with one end of the combustion chamber, and a hydraulic chamber connected to the opening of the other end that is the minimum cross-sectional area of the combustion chamber. can get.
【００１１】[0011]
【作用】かかる本発明において、高液圧は次の要領で得
られる。 先ず、互いに連通せる燃焼室、誘導路そし
て着火室にほぼ理論混合比の可燃性混合ガスを充填す
る。 次に、着火室にて着火を行う。 着火すると
火炎は爆轟（デトネーション）により誘導路を経て燃焼
室内を進行する。その際、各誘導路は等しい路程となっ
ているので、燃焼室の一端部には各誘導路火炎が同時に
到達する。 燃焼室では、上記火炎は他端部に向け伝
播するが、燃焼室はその断面積が他端部に向け減少する
ので、火炎の圧力は上昇し他端部にて最大値になる。該
他端部の開口には液圧室が接続されて液面が該開口に臨
んでいるので、上記圧力は液圧室内の液体に伝達され
る。かかる液圧により成形等がなされる。In the present invention, a high hydraulic pressure can be obtained as follows. First, the combustible chamber, the guide passage, and the ignition chamber, which can communicate with each other, are filled with a combustible gas mixture having a substantially theoretical mixing ratio. Next, ignition is performed in the ignition chamber. When ignited, the flame advances in the combustion chamber through the taxiway due to the detonation. At this time, since the respective guide passages have the same path length, the respective guide passage flames simultaneously reach one end of the combustion chamber. In the combustion chamber, the flame propagates toward the other end, but since the cross-sectional area of the combustion chamber decreases toward the other end, the flame pressure rises and reaches the maximum value at the other end. Since the hydraulic chamber is connected to the opening of the other end and the liquid surface faces the opening, the pressure is transmitted to the liquid in the hydraulic chamber. Molding and the like are performed by such liquid pressure.
【００１２】[0012]
【実施例】以下、添付図面にもとづいて本発明の実施例
を説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１３】図１は本実施例装置の縦断面図である。図
において、１は燃焼室で、下方に向け円錐状をなし横断
面における断面積は上端部１Ａで最大、下端部１Ｂで最
小となって収束部を形成するようになっている。FIG. 1 is a vertical sectional view of the apparatus of this embodiment. In the figure, reference numeral 1 denotes a combustion chamber, which has a downward conical shape and has a maximum cross-sectional area at the upper end 1A and a minimum cross-sectional area at the lower end 1B to form a convergent portion.
【００１４】上記燃焼室１の上端部１Ａの内壁はやや上
方に弯曲形成せられ、ここに複数の孔状の誘導路２が連
通している。該複数の誘導路２は上方にて、円板空間状
の分散室３に集束せられている。該分散室３には上方に
延びる着火室４が連通接続されている。そして、該着火
室４の上部には、着火装置６により作動する点火栓５が
設けられていると共に、流量計７，８を経て燃料供給源
９、酸化剤供給源１０がそれぞれ接続されている。な
お、１１は着火室４内の圧力を確認するための圧力計で
ある。The inner wall of the upper end 1A of the combustion chamber 1 is curved slightly upward, and a plurality of hole-shaped guide passages 2 communicate therewith. The plurality of guide paths 2 are focused on a disk-shaped dispersion chamber 3 at the top. An ignition chamber 4 extending upward is connected to the dispersion chamber 3 so as to communicate therewith. An ignition plug 5 which is operated by an ignition device 6 is provided above the ignition chamber 4, and a fuel supply source 9 and an oxidant supply source 10 are connected via flowmeters 7 and 8, respectively. . Reference numeral 11 denotes a pressure gauge for checking the pressure in the ignition chamber 4.
【００１５】上記燃焼室１の下端部１Ｂは開口されてお
り、ここに液圧室１２が接続され、そしてその直下に液
圧使用の一例としての成形装置１３が設けられている。
上記液圧室１２には圧力媒体としての水等の液体が収束
されているが、その液面は図のごとく上記燃焼室１の下
端部１Ｂに直接面していても、強靭かつ変形容易な膜体
で介面を形成していてもよい。上記液圧室１２には弁を
介して空気抜き用の管１４、そして弁を介して液圧用の
水等の液体供給装置１５が接続されている。A lower end portion 1B of the combustion chamber 1 is opened, a hydraulic chamber 12 is connected to the lower end portion 1B, and a molding device 13 as an example of using hydraulic pressure is provided immediately below the hydraulic chamber 12.
A liquid such as water as a pressure medium is converged in the hydraulic chamber 12, but the liquid surface is strong and easily deformable even if it directly faces the lower end portion 1B of the combustion chamber 1 as shown in the drawing. The intermediate surface may be formed by a film body. A pipe 14 for venting air is connected to the hydraulic chamber 12 via a valve, and a liquid supply device 15 such as water for hydraulic pressure is connected via a valve.
【００１６】上記成形装置１３は内部に、上面が成形用
の三次元形状をもった金型１６を交換可能に収容してい
る。該成形装置１３は必要に応じ、上記液圧室１２との
間にて、例えば両者のフランジの間で成形を受けるべき
板材等Ｐの周縁を保持することもできる。上記成形装置
１３には、上記金型１６を貫通してその上部空間に連通
して該空間を真空とするための真空ポンプ装置１７が接
続さている。該真空ポンプ装置１７は既述の着火室４に
も接続されている。The molding apparatus 13 accommodates a mold 16 whose upper surface has a three-dimensional shape for molding in a replaceable manner. If necessary, the molding device 13 can hold the peripheral edge of the plate material P or the like to be subjected to molding between the hydraulic chamber 12 and, for example, both flanges. The molding device 13 is connected to a vacuum pump device 17 that penetrates the mold 16 and communicates with an upper space thereof to evacuate the space. The vacuum pump device 17 is also connected to the ignition chamber 4 described above.
【００１７】かかる本実施例装置において、高圧液圧の
発生そしてこれを利用した成形は次のごとくになされ
る。 先ず、成形を受けるべき板材Ｐが金型１６上にセッ
トされる。 次に、真空ポンプ装置１７によって着火室４、分散
室３、誘導路２そして燃焼室１内が所定の真空度とされ
る。また、これと同時に金型１６と板材Ｐとの間の空間
も同様に所定の真空度となるように吸引される。 しかる後、液圧室１２内には水が充填され、着火室
４、分散室３、誘導路２そして燃焼室１内には、ほぼ理
論混合比の可燃性ガスが、燃料供給源９、酸化剤供給源
１０により充填される。 かかる設定の完了後、着火装置６によって点火栓５
を作動させる。着火室４内では着火により爆轟が起こり
その火炎が分散室３そして誘導路２を経て燃焼室１の上
端部１Ａに伝播される。その際、複数の誘導路２の路程
はそれぞれ等しく設定されているので、複数の誘導路２
の火炎は同時に上記上端部１Ａに達する。 燃焼室１内では火炎は上端部１Ａから下端部１Ｂへ
と進行するが、燃焼室１の断面積は下方に向け次第に小
さくなっているために、その圧力は上昇し下端部１Ｂで
はきわめて高圧となる。 上記燃焼室１の下端部１Ｂの開口部には、液圧室１
２内の液体の液面が臨んでいるため、上記高圧は該液面
から液体中へと伝播され、板材Ｐを金型１６に対して等
圧で圧し成形が行われる。 しかる後、成形品としての板材をとり出すと共に、
上記〜の工程を繰り返すことによって、次々と成形
を行うことができる。In the apparatus of this embodiment, the generation of high-pressure liquid pressure and the molding using this are performed as follows. First, the plate material P to be molded is set on the mold 16. Next, the vacuum pump device 17 brings the ignition chamber 4, the dispersion chamber 3, the guide passage 2 and the combustion chamber 1 to a predetermined vacuum degree. At the same time, the space between the mold 16 and the plate P
Is also sucked so as to have a predetermined degree of vacuum. Thereafter, the hydraulic chamber 12 is filled with water, and in the ignition chamber 4, the dispersion chamber 3, the guide passage 2 and the combustion chamber 1, a combustible gas having a substantially theoretical mixing ratio is supplied to the fuel supply source 9 and the oxidation source. It is filled by the agent supply source 10. After such setting is completed, the ignition device 6 is used to set the spark plug 5
Activate A detonation occurs in the ignition chamber 4 due to the ignition, and the flame is propagated to the upper end 1A of the combustion chamber 1 through the dispersion chamber 3 and the guide path 2. At this time, since the path lengths of the plurality of taxiways 2 are set equal to each other, the plurality of taxiways 2
The flame reaches the upper end 1A at the same time. In the combustion chamber 1, the flame progresses from the upper end portion 1A to the lower end portion 1B, but since the cross-sectional area of the combustion chamber 1 gradually decreases downward, its pressure rises and the lower end portion 1B becomes extremely high pressure. Become. At the opening of the lower end 1B of the combustion chamber 1, the hydraulic chamber 1
Since the liquid surface of the liquid in 2 is exposed, the high pressure is propagated from the liquid surface into the liquid, and the plate material P is pressed against the die 16 at an equal pressure for molding. After that, while taking out the plate material as a molded product,
By repeating steps 1 to 3, molding can be performed one after another.
【００１８】なお、本実施例では、高圧液圧の利用方法
として金型による成形を挙げたが、他の種の加圧、ある
いは駆動源等としての他の分野においても広く利用可能
である。In this embodiment, the molding using the mold is mentioned as the method of utilizing the high-pressure liquid pressure, but it can also be widely used in other fields such as pressurization of other species or a drive source.
【００１９】図２に本実施例における爆轟液圧について
数値をもって具体的に説明する。図は燃焼室１の他端部
１Ｂに臨む液面近傍における圧力測定の結果を示すもの
で、燃焼室中心部でのガス圧を３７万気圧としたとこ
ろ、液圧は約１５μsec の間生じ、その間に一次波と二
次波が得られた。一次波は３２００kgf/cm2 、二次波は
３５００kgf/cm2 であった。なお、この圧力は、燃焼室
内に充填するガス圧（量）や混合比を加減することによ
り容易に調整することができる。The detonation hydraulic pressure in this embodiment will be specifically described with reference to FIG. The figure shows the result of pressure measurement near the liquid surface facing the other end 1B of the combustion chamber 1. When the gas pressure in the center of the combustion chamber was 370,000 atm, the liquid pressure was generated for about 15 μsec. Meanwhile, the primary and secondary waves were obtained. The primary wave was 3200 kgf / cm 2 , and the secondary wave was 3500 kgf / cm 2 . It should be noted that this pressure can be easily adjusted by adjusting the gas pressure (amount) filling the combustion chamber and the mixing ratio.
【００２０】[0020]
【発明の効果】本発明は以上のごとく構成されるので、
その方法にあっては、従来の方法に比して、安価、かつ
容易に立上りが急峻で特性の優れた衝撃液圧を得られる
と共に衝撃液圧のレベルは、爆轟装置の初期充填ガス圧
に依存しているので、圧力制御性に優れているという効
果を得る。Since the present invention is constructed as described above,
In this method, compared with the conventional method, it is possible to obtain an impact hydraulic pressure that is cheaper, easier to rise and has excellent characteristics, and the impact hydraulic pressure level is the initial filling gas pressure of the detonator. Therefore, the effect of excellent pressure controllability is obtained.
【００２１】また、本発明装置によれば、従来の弾丸打
込式、爆発方式のように火薬を用いないため、設定上の
制約を受けない装置となり、又、連続的に衝撃液圧を発
生させることができるようになるという効果を得る。そ
して、容易かつ安全に衝撃液圧を得ることができるの
で、加工分野等の広い工業分野での本格的な応用が可能
になった。Further, according to the device of the present invention, since no explosive is used unlike the conventional bullet driving type and explosive type, the device is not restricted in setting and the impact hydraulic pressure is continuously generated. The effect of being able to be obtained is obtained. Further, since the impact hydraulic pressure can be easily and safely obtained, full-scale application in a wide industrial field such as a processing field becomes possible.
【図１】図１は本発明の一実施例装置の縦断面図であ
る。FIG. 1 is a vertical sectional view of an apparatus according to an embodiment of the present invention.
【図２】図２は図１装置における液圧波形の一例を示す
図である。FIG. 2 is a diagram showing an example of a hydraulic pressure waveform in the apparatus of FIG.
１ 燃焼室 １Ａ 一端部（上端部） １Ｂ 他端部（下端部） ２ 誘導路 ４ 着火室 ５ 点火栓 1 Combustion chamber 1A One end (upper end) 1B The other end (lower end) 2 Taxiway 4 Ignition chamber 5 Spark plug
Claims (2)
するデトネーション波をその進行と共に収束し、収束部
で得られる高圧を液圧室内の液体の液面に伝達して液圧
に変換することとした爆轟液圧発生方法。1. A detonation wave generated by igniting a combustible air-fuel mixture is converged as it progresses, and the high pressure obtained at the converging portion is transmitted to the liquid surface of the liquid in the hydraulic chamber to be converted into hydraulic pressure. The detonation hydraulic pressure generation method.
なる燃焼室と、燃料の供給を受け点火栓が配設された着
火室と、着火室から分岐して延び上記燃焼室の一端部へ
連通する路程の等しい複数の誘導路と、上記燃焼室の最
小断面積部たる他端部の開口に接続される液圧室とを備
えることとした爆轟液圧発生装置。2. A combustion chamber having a cross-sectional area that decreases from one end to the other end, an ignition chamber in which a spark plug is arranged to receive a fuel supply, and one end of the combustion chamber branching from the ignition chamber and extending. A detonation hydraulic pressure generating device comprising: a plurality of guide passages having the same path length communicating with the combustion chamber; and a hydraulic pressure chamber connected to an opening at the other end which is the minimum cross-sectional area of the combustion chamber.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3152278A JP2505137B2 (en) | 1991-05-29 | 1991-05-29 | Detonation hydraulic pressure generation method and device |
| US07/886,717 US5256430A (en) | 1991-05-29 | 1992-05-21 | Method for generating a detonation pressure |
| EP92108940A EP0516080B1 (en) | 1991-05-29 | 1992-05-27 | Method for generating a detonation pressure and apparatus therefor |
| DE69202513T DE69202513T2 (en) | 1991-05-29 | 1992-05-27 | Process for generating an explosion pressure and device therefor. |
| US08/063,160 US5339666A (en) | 1991-05-29 | 1993-05-18 | Apparatus for generating a detonation pressure |
| US08/223,424 US5379621A (en) | 1991-05-29 | 1994-04-05 | Apparatus for generating an underliquid shock pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3152278A JP2505137B2 (en) | 1991-05-29 | 1991-05-29 | Detonation hydraulic pressure generation method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04351299A JPH04351299A (en) | 1992-12-07 |
| JP2505137B2 true JP2505137B2 (en) | 1996-06-05 |
Family
ID=15537019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3152278A Expired - Lifetime JP2505137B2 (en) | 1991-05-29 | 1991-05-29 | Detonation hydraulic pressure generation method and device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2505137B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2755098B2 (en) * | 1993-02-10 | 1998-05-20 | 日本鋼管株式会社 | Detonation pressure processing equipment |
| JP2755110B2 (en) * | 1993-06-11 | 1998-05-20 | 日本鋼管株式会社 | Detonation pressure processing equipment |
| JPH07155858A (en) * | 1993-12-08 | 1995-06-20 | Nkk Corp | Working method and device for composite material by detonation pressure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5311381A (en) * | 1976-07-20 | 1978-02-01 | Max Co Ltd | Head valve mechanism in internal combustion tools |
| JPS5337969A (en) * | 1976-09-20 | 1978-04-07 | Max Co Ltd | Exhaust system for internal combustion type percussive machines |
-
1991
- 1991-05-29 JP JP3152278A patent/JP2505137B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04351299A (en) | 1992-12-07 |
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