JP5505079B2 - High pressure tank liner manufacturing apparatus, high pressure tank liner manufacturing method, and high pressure tank manufacturing method - Google Patents
High pressure tank liner manufacturing apparatus, high pressure tank liner manufacturing method, and high pressure tank manufacturing method Download PDFInfo
- Publication number
- JP5505079B2 JP5505079B2 JP2010116708A JP2010116708A JP5505079B2 JP 5505079 B2 JP5505079 B2 JP 5505079B2 JP 2010116708 A JP2010116708 A JP 2010116708A JP 2010116708 A JP2010116708 A JP 2010116708A JP 5505079 B2 JP5505079 B2 JP 5505079B2
- Authority
- JP
- Japan
- Prior art keywords
- divided body
- reflecting mirror
- laser light
- liner
- welding
- 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 - Fee Related
Links
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Images
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- B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
- B29C66/73751—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized
- B29C66/73752—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized the to-be-joined areas of both parts to be joined being uncured
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
- B29C66/73941—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset characterised by the materials of both parts being thermosets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
本発明は、高圧タンク用ライナーの製造装置、高圧タンク用ライナーの製造方法及び高圧タンクに関する。 The present invention relates to a high-pressure tank liner manufacturing apparatus, a high-pressure tank liner manufacturing method, and a high-pressure tank.
図10に示すように、高圧タンク300等の高圧容器は、鉄等に比べ軽量であって強靱性を有するFRP(Fiber Reinforced Plastic)部材が用いられ、中空のライナー310の表面にFRP部材からなるFRP層320が形成されている。ここで、FRP部材は、例えば、繊維と樹脂を含み、プラスチックが強化されたものである。
As shown in FIG. 10, the high-pressure vessel such as the high-
図11に示すように、FRP層320を形成する方法として、例えば、フィラメントワインディング法(以下「FW法」ともいう)が知られており、このフィラメントワインディング法は、樹脂を含浸した繊維を、中空のライナー310に巻き付けて、FRP層320を形成する方法である。FRP層320を形成したのち、通常、熱硬化処理が施される。
As shown in FIG. 11, as a method for forming the
上記中空のライナーは、例えば、2つ以上の分割体を接合することにより形成することができる。特許文献1には、樹脂組成物からなる2つ以上の分割体を接合して中空のライナーを形成することが記載され、樹脂組成物として、ポリアミド6、共重合ポリアミド、耐衝撃材を含むポリアミド樹脂組成物を用いることが記載されている。 The hollow liner can be formed, for example, by joining two or more divided bodies. Patent Document 1 describes that two or more divided bodies made of a resin composition are joined to form a hollow liner, and the resin composition includes polyamide 6, copolymer polyamide, and a polyamide including an impact resistant material. The use of a resin composition is described.
一方、特許文献2には、レーザー光に対して吸収性を有する樹脂からなる2つの樹脂成形体の溶着端部を対向させてレーザー溶着する方法が記載されている。溶着に際し、レーザー光は、ライナーの外周側から照射されている。
On the other hand,
ところで、従来、樹脂組成物からなる2つの分割体110,120の溶着して中空のライナー200を形成する一般的な方法は、例えば、図8に示すように、2つの分割体110,120の溶着端部を対向させ、さらに、対向接触させた両溶着端部からなるレーザー溶着部30を露出させた状態で分割体110,120の一方を押さえ治具40で押さえ、口金部14,24を貫通する回転軸(図示せず)によって分割体110,120を同時に回転させながら、レーザー源50からのレーザー光52を分割体110,120の外側からレーザー溶着部30に照射し、2つの分割体110,120の溶着端部を溶着して中空のライナー200を形成している。
By the way, conventionally, as a general method for forming the
上記方法をさらに詳細に説明すると、2つの分割体は、レーザー透過材からなる分割体110とレーザー吸収材からなる分割体120とからなり、図9に示すように、例えば、両分割体110,120の溶着端部は、それぞれ嵌合可能な段差切り欠き形状を有し、互いに段差切り欠き部を嵌め合わせることでレーザー溶着部30が形成されている。そして、レーザー溶着部30におけるレーザー透過材からなる分割体110にレーザー光52が照射されると、分割体110を透過したレーザー光52がレーザー吸収材からなる分割体120に到達し、レーザー光52を吸収した分割体120の溶着端部が発熱して溶融するとともに、分割体120の発熱が分割体110の溶着端部に伝わり、分割体110の溶着端部も溶融して、分割体110,120の両溶着端部が溶融し混ざり合うことにより、分割体110,120が接合される。
The above method will be described in more detail. The two divided bodies include a divided
上述した従来の樹脂組成物からなる2つの分割体を溶着して中空のライナーを形成する方法において、2つの分割体を対向接触させた時に、仮に、2つの分割体の両溶着端部の間に少なくとも一個所に隙間が発生した場合、レーザー光が照射されてレーザー吸収材からなる分割体が発熱しても、その熱が隙間のためにレーザー透過材からなる分割体に伝達されず、隙間が発生した個所の両溶着端部の溶着精度が低下するおそれがある。また、2つの分割体の対向接触個所の外側からレーザー光を照射するため、2つの分割体を保持する押さえ治具は、レーザー溶着部を直接押さえることができず、従って直接押さえた場合に比べ隙間の発生を抑制し難く、さらにレーザー照射面は外気に晒され冷却し易いため、溶着端部の発熱溶融個所は比較的狭く、また発熱溶融時間も比較的短くなることから、レーザー光を照射した両溶着端部のみ発熱して溶融接合されるため、仮に、それ以外の両溶着端部間に隙間が発生している場合でも、その状態で溶着による接合が進行してしまうおそれがある。 In the method of forming the hollow liner by welding the two divided bodies made of the conventional resin composition described above, when the two divided bodies are brought into contact with each other, it is temporarily between the weld ends of the two divided bodies. If a gap occurs in at least one place, even if the laser beam is irradiated and the divided body made of the laser absorbing material generates heat, the heat is not transmitted to the divided body made of the laser transmitting material due to the gap, and the gap There is a possibility that the welding accuracy at both welding ends of the portion where the erosion occurs is lowered. In addition, since the laser beam is irradiated from the outside of the contact point between the two divided bodies, the holding jig that holds the two divided bodies cannot directly hold the laser welded part, so compared to the case where it is pressed directly. It is difficult to suppress the generation of gaps, and the laser irradiation surface is exposed to the outside air and is easy to cool. Therefore, the heat-melting point at the weld end is relatively narrow and the heat-melting time is also relatively short. Since only the two welded end portions generate heat and are melt-bonded, even if a gap is generated between the other welded end portions, there is a possibility that the joining by welding proceeds in that state.
本発明は、上記課題に鑑みなされたものであり、少なくとも2つの分割体の両溶着端部の間の隙間を無くすように接合する高圧タンク用ライナーの製造装置、高圧タンク用ライナーの製造方法および高圧タンクを提供する。 The present invention has been made in view of the above-described problem, and a high-pressure tank liner manufacturing apparatus, a high-pressure tank liner manufacturing method, and a high-pressure tank liner manufacturing method for joining so as to eliminate a gap between both welded end portions of at least two divided bodies. Provide high-pressure tank.
上記目的を達成するために、本発明の高圧タンク用ライナーの製造装置、高圧タンク用ライナーの製造方法及び高圧タンクは以下の特徴を有する。 In order to achieve the above object, a high pressure tank liner manufacturing apparatus, a high pressure tank liner manufacturing method, and a high pressure tank according to the present invention have the following characteristics.
(1)レーザー光に対して透過性を有する樹脂からなる第1の分割体の溶着端部とレーザー光に対して吸収性を有する樹脂からなる第2の分割体の溶着端部とを対向接触させてなる周回部を外周側から保持する押さえ治具と、第1の分割体に設けられた口金部を介して第1の分割体の内部にレーザー光を照射するレーザー源と、第2の分割体に設けられた口金部を介して第2の分割体内に挿入され、照射されたレーザー光を前記周回部の内周側に反射する反射鏡が一方端に設けられた反射鏡付き回転軸と、反射鏡付き回転軸を回転させる回転手段と、を有する高圧タンク用ライナーの製造装置である。 (1) The welding end portion of the first divided body made of a resin that is transmissive to laser light and the welding end portion of the second divided body made of a resin that is absorbent to the laser light are opposed to each other. A holding jig for holding the circular portion formed from the outer peripheral side, a laser source for irradiating laser light into the first divided body through a base provided in the first divided body, and a second A rotating shaft with a reflecting mirror provided at one end with a reflecting mirror that is inserted into the second divided body through a base provided in the divided body and reflects the irradiated laser light to the inner peripheral side of the rotating portion. And a high pressure tank liner manufacturing apparatus having a rotating means for rotating a rotating shaft with a reflecting mirror.
第1の分割体の溶着端部と第2の分割体の溶着端部とを対向接触させてなる周回部を外周側から押さえ治具により保持するため、従来に比べ、両溶着端部間の隙間の発生が抑制される。さらに、第2の分割体内に挿入された反射鏡付き回転体を回転させながら、反射鏡によって第1の分割体内に照射されたレーザー光を前記周回部の内周側に反射させ両溶着端部を発熱させるので、発生した熱は第1の分割体及び第2の分割体の内部に籠もり、両溶着端部の溶融時間が従来に比べ長くなる。これにより、仮に対向接触時に両溶着端部間に隙間が生じても、十分に隙間を埋めながら溶着接合することができる。 Since the circumference part formed by making the welding end part of the 1st division object and the welding end part of the 2nd division object counter-contact is held with a pressing jig from the outer circumference side, compared with the past, between both welding edge parts Generation of gaps is suppressed. Further, while rotating the rotating body with the reflector inserted into the second divided body, the laser light irradiated into the first divided body by the reflecting mirror is reflected to the inner peripheral side of the circulating portion, and both welding end portions The generated heat is trapped inside the first divided body and the second divided body, and the melting time of both welded end portions becomes longer than before. Thereby, even if a clearance gap arises between both welding edge parts at the time of opposing contact, it can weld-join, fully filling a clearance gap.
(2)上記(1)に記載の高圧タンク用ライナーの製造装置において、さらに、第2の分割体を把持しながら、第1の分割体の口金部と第2の分割体の口金部を結ぶ軸方向に対して振動を加える振動発振機を有する高圧タンク用ライナーの製造装置である。 (2) In the high-pressure tank liner manufacturing apparatus according to (1), the base part of the first divided body and the base part of the second divided body are connected while the second divided body is gripped. An apparatus for manufacturing a liner for a high-pressure tank having a vibration oscillator that applies vibration to an axial direction.
第2の分割体内に挿入された反射鏡付き回転体を回転させながら、反射鏡によって第1の分割体内に照射されたレーザー光を前記周回部の内周側に反射させ、両溶着端部を発熱させ溶融させて接合する際に、第1の分割体の溶着端部及び第2の分割体の溶着端部のそれぞれの溶融時の溶け込み量に応じて、第1の分割体の口金部と第2の分割体の口金部を結ぶ軸方向に対して振動発振機から振動を加えるので、さらに両溶着端部間の隙間を無くして接合することができる。 While rotating the rotating body with the reflecting mirror inserted in the second divided body, the laser beam irradiated into the first divided body by the reflecting mirror is reflected to the inner peripheral side of the rotating portion, and both welding end portions are When joining by melting and heating, according to the amount of penetration at the time of melting of the welding end of the first divided body and the welding end of the second divided body, Since vibration is applied from the vibration oscillator to the axial direction connecting the base portions of the second divided body, it is possible to join without any gap between both welded end portions.
(3)上記(1)または(2)に記載の高圧タンク用ライナーの製造装置において、さらに、反射鏡の角度を調整する反射鏡角度調整手段が設けられている高圧タンク用ライナーの製造装置である。 (3) In the high pressure tank liner manufacturing apparatus according to (1) or (2), the high pressure tank liner manufacturing apparatus is further provided with reflecting mirror angle adjusting means for adjusting the angle of the reflecting mirror. is there.
第1の分割体の溶着端部と第2の分割端部の溶着端部との対向接触部分の幅に応じて、反射鏡角度調整手段を用いて反射鏡により反射されるレーザー光の幅を調整することができるので、両溶着端部の溶着に必要な量を十分に溶融させ、両溶着端部をより確実に溶着させることができる。 The width of the laser beam reflected by the reflecting mirror using the reflecting mirror angle adjusting means is set according to the width of the facing contact portion between the welding end of the first divided body and the welding end of the second divided end. Since it can adjust, the quantity required for welding of both welding end parts can be sufficiently melted, and both welding end parts can be more reliably welded.
(4)レーザー光に対して透過性を有する樹脂からなる第1の分割体の溶着端部とレーザー光に対して吸収性を有する樹脂からなる第2の分割体の溶着端部とを対向接触させてなる周回部を外周側から保持する工程と、第2の分割体に設けられた口金部を介して挿入された一方端に反射鏡が設けられた反射鏡付き回転軸を回転させるながら、第1の分割体に設けられた口金部を介して反射鏡に対しレーザー光を照射し、照射されたレーザー光を前記周回部の内周側に反射させて両溶着端部を溶着接合する工程と、を有する高圧タンク用ライナーの製造方法である。 (4) The welding end portion of the first divided body made of a resin that is transparent to laser light and the welding end portion of the second divided body made of a resin that is absorbent to the laser light are opposed to each other. While rotating the rotating shaft with a reflecting mirror provided with a reflecting mirror at one end inserted through the base provided in the second divided body, while holding the rotating portion from the outer peripheral side, A step of irradiating the reflecting mirror with laser light through a base provided in the first divided body, reflecting the irradiated laser light to the inner peripheral side of the circulating portion, and welding and bonding both welding end portions. And a method for producing a liner for a high-pressure tank.
第1の分割体の溶着端部と第2の分割体の溶着端部とを対向接触させてなる周回部を外周側から保持するため、従来に比べ、両溶着端部間の隙間の発生が抑制される。さらに、第2の分割体内に挿入された反射鏡付き回転体を回転させながら、反射鏡によって第1の分割体内に照射されたレーザー光を前記周回部の内周側に反射させ両溶着端部を発熱させるので、発生した熱は第1の分割体及び第2の分割体の内部に籠もり、両溶着端部の溶融時間が従来に比べ長くなる。これにより、仮に対向接触時に両溶着端部間に隙間が生じても、十分に隙間を埋めながら溶着接合することができる。 In order to hold the circumference part formed by making the welding end part of the 1st division object and the welding end part of the 2nd division object counter-contact from the outer peripheral side, compared with the past, generation of the gap between both welding edge parts is produced. It is suppressed. Further, while rotating the rotating body with the reflector inserted into the second divided body, the laser light irradiated into the first divided body by the reflecting mirror is reflected to the inner peripheral side of the circulating portion, and both welding end portions The generated heat is trapped inside the first divided body and the second divided body, and the melting time of both welded end portions becomes longer than before. Thereby, even if a clearance gap arises between both welding edge parts at the time of opposing contact, it can weld-join, fully filling a clearance gap.
(5)レーザー光に対して透過性を有する樹脂からなる第1の分割体の溶着端部とレーザー光に対して吸収性を有する樹脂からなる第2の分割体の溶着端部とを対向接触させた周回部を外周側から保持する工程と、第2の分割体に設けられた口金部を介して挿入された一方端に反射鏡が設けられた反射鏡付き回転軸を回転させるながら、第1の分割体に設けられた口金部を介して反射鏡に対しレーザー光を照射し、照射されたレーザー光を前記周回部の内周側に反射させ、且つ、第2の分割体を把持しながら第1の分割体の口金部と第2の分割体の口金部を結ぶ軸方向に対して振動を加え、両溶着端部を溶着接合する工程と、を有する高圧タンク用ライナーの製造方法である。 (5) The welding end portion of the first divided body made of a resin that is transparent to laser light and the welding end portion of the second divided body made of a resin that is absorbent to the laser light are opposed to each other. While rotating the rotating shaft with the reflecting mirror provided with the reflecting mirror at one end inserted through the base provided on the second divided body, The reflecting mirror is irradiated with laser light through a base provided in one divided body, the irradiated laser light is reflected to the inner peripheral side of the rotating portion, and the second divided body is held. A method for producing a liner for a high-pressure tank, including the step of applying vibration to the axial direction connecting the base portion of the first divided body and the base portion of the second divided body, and welding and joining the two welding end portions. is there.
第1の分割体の溶着端部と第2の分割体の溶着端部とを対向接触させてなる周回部を外周側から保持するため、従来に比べ、両溶着端部間の隙間の発生が抑制される。また、第2の分割体内に挿入された反射鏡付き回転体を回転させながら、反射鏡によって第1の分割体内に照射されたレーザー光を前記周回部の内周側に反射させ両溶着端部を発熱させるので、発生した熱は第1の分割体及び第2の分割体の内部に籠もり、両溶着端部の溶融時間が従来に比べ長くなり、さらに、両溶着端部を発熱させ溶融させて接合する際に、第1の分割体の溶着端部及び第2の分割体の溶着端部のそれぞれの溶融時の溶け込み量に応じて、第1の分割体の口金部と第2の分割体の口金部を結ぶ軸方向に対して振動発振機から振動を加えるので、さらに両溶着端部間の隙間を無くして接合することができる。 In order to hold the circumference part formed by making the welding end part of the 1st division object and the welding end part of the 2nd division object counter-contact from the outer peripheral side, compared with the past, generation of the gap between both welding edge parts is produced. It is suppressed. Further, while rotating the rotating body with the reflecting mirror inserted into the second divided body, the laser light irradiated into the first divided body by the reflecting mirror is reflected to the inner peripheral side of the circulating portion, and both welding end portions The generated heat is trapped inside the first divided body and the second divided body, the melting time of both weld ends becomes longer than before, and both the weld ends are heated to melt. When the joining is performed, the base portion of the first divided body and the second portion are in accordance with the amount of fusion at the time of melting of the welding end portion of the first divided body and the welding end portion of the second divided body. Since vibration is applied from the vibration oscillator with respect to the axial direction connecting the base portions of the divided bodies, it is possible to join without any gap between the two welding end portions.
(6)上記(4)又は(5)に記載の高圧タンク用ライナーの製造方法により2つの分割体を接合してなるライナーを得て、前記ライナーに熱硬化性樹脂を含浸した繊維を巻回して硬化させて繊維強化樹脂層を形成する、高圧タンクの製造方法である。 (6) In the above SL (4) or (5) to obtain a liner formed by joining the two divided bodies by the production method of the high-pressure tank liner according to the winding fibers impregnated with a thermosetting resin in the liner cured by turning to form a fiber-reinforced resin layer, a method of manufacturing a high-pressure tank.
本発明によれば、少なくとも2つの分割体の両溶着端部の間の隙間を無くすように接合される。 According to this invention, it joins so that the clearance gap between the both welding edge parts of at least 2 division body may be eliminated.
以下、本発明の実施形態について、図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
本実施の形態の高圧タンク用ライナーの製造装置及び高圧タンク用ライナーの製造方法では、図1A及び図1Bに示すように、レーザー光に対して透過性を有する樹脂からなる第1の分割体10と、レーザー光に対して吸収性を有する樹脂からなる第2の分割体20とを用い、図2に示すように、第1の分割体10の溶着端部12と第2の分割体20の溶着端部22とを対向接触させ、さらに溶着させて接合することにより、高圧タンク用ライナーを製造している。ここで、図2に示す溶着端部12には、溶着端部22の突出部と嵌合可能な切り欠き部が設けられており、両溶着端部12,22は嵌合した状態で溶着されて接合されている。
In the high-pressure tank liner manufacturing apparatus and the high-pressure tank liner manufacturing method of the present embodiment, as shown in FIGS. 1A and 1B, the first divided
レーザー光に対して透過性を有する樹脂からなる第1の分割体10としては、レーザーを透過する樹脂であれば如何なる樹脂でも良いが、例えば、ポリアミド系樹脂組成物が用いられ、ポリアミド系樹脂組成物としては、例えば、ωアミノ酸の重縮合反応で合成されるn−ナイロン、ジアミンとカルボン酸の共縮重合反応で合成されるn,m−ナイロンが挙げられ、n−ナイロンとしては、ナイロン6、ナイロン11、ナイロン12が挙げられ、n,m−ナイロンとしては、ナイロン66、ナイロン610、ナイロン6T、ナイロン6I、ナイロン9T、ナイロンM5Tが挙げられ、その他、ナイロン612,ケプラー(デュポン社の登録商標、poly-p-phenyleneterephthalamide)、ノーメックス(デュポン社の登録商標、poly-m-phenyleneisoephthalamide)などが用いられる。
The first divided
レーザー光に対して吸収性を有する樹脂からなる第2の分割体20としては、レーザー光を吸収する樹脂またはレーザーを吸収する材料を含有する樹脂であれば如何なるものでも良く、例えば、上述したポリアミド系樹脂組成物、ポリエチレン(PE)、ポリプロピレン(PP)、スチレン−アクリロニトリル共重合体、ポリエチレンテレフタレート(PET)、ポリスチレン、ABS、アクリル(PMMA)、ポリカーボネート(PC)、ポリブチレンテレフタレート(PBT)、ポリフェニレンスルファイド(PPS)等の樹脂に、カーボンブラック、染料や顔料等の所定の着色材を混入したものが挙げられる。
The second divided
さらに、本実施の形態では、第1の分割体10に用いるレーザー光に対して透過性を有する樹脂と第2の分割体20に用いるレーザー光に対して吸収性を有する樹脂との透過率(%)の差が、30%〜70%であることが好ましい。ここで、透過率は、半導体レーザー(レーザー光の波長:500〜1000nm)を照射したときの透過率である。
Further, in the present embodiment, the transmittance between the resin having transparency to the laser beam used for the first divided
また、第2の分割体20の全体を、上述したレーザー光に対して吸収性を有する樹脂から成形してもよいが、例えば、第2の分割体20の溶接端部のみをレーザー光に対して吸収性を有する樹脂を用いて成形してもよい。
Further, the entire second divided
本実施の形態における高圧タンク用ライナーの製造装置は、図3に示すように、第1の分割体10の溶着端部と第2の分割体20の溶着端部とを対向接触させてなる周回部であるレーザー溶着部30を直接外周側から保持する押さえ治具40と、第1の分割体10に設けられた口金部を介して第1の分割体10の内部にレーザー光52を照射するレーザー源50と、第2の分割体20に設けられた口金部を介して第2の分割体20内に挿入され、照射されたレーザー光52をレーザー溶着部30の内周側に反射する反射鏡60が一方端に設けられた反射鏡付き回転軸62と、反射鏡付き回転軸62を回転させる回転手段64とを有する。
As shown in FIG. 3, the high-pressure tank liner manufacturing apparatus in the present embodiment is a circuit in which the welding end portion of the first divided
レーザー溶着部30を直接外周側から押さえ治具により保持するため、従来に比べ、両溶着端部間の隙間の発生が抑制される。また、第2の分割体20内に挿入された反射鏡付き回転軸62を回転させながら、反射鏡60によって第1の分割体10内に照射されたレーザー光52をレーザー溶着部30の内周側に反射させ両溶着端部を発熱させるので、発生した熱は第1の分割体10及び第2の分割体20の内部に籠もり、両溶着端部の溶融時間が従来に比べ長くなり、仮に対向接触時に両溶着端部間に隙間が生じても、十分に隙間を埋めながら溶着接合することができる。
Since the
また、反射鏡付き回転軸62を高速回転させることで、所定時間内に、両溶着端部の周回部全体にレーザー光を均一に照射することができるので、両溶接端部の周回部全体にほぼ均一に発熱を生じさせながら溶着を行うことができる。これにより、レーザー光による溶着が高速で且つ安定した溶着品質を確保することができる。ここで、本実施の形態における反射鏡付き回転軸62の回転速度は、例えば、2〜3秒で1回転する速度で、6〜7回転させて溶着させ接合させること好ましいが、これに限るものではなく、レーザー光の強度と第2の分割体20におけるレーザー光を吸収する樹脂の透過率に応じて適宜回転速度及び回転数が選択される。
Further, by rotating the
本実施の形態におけるレーザー源50から照射されるレーザー光52の種類としては、レーザー光を透過させる透過樹脂材の吸収スペクトルや板厚(透過長)等との関係で、透過樹脂材内での透過率が所定値以上となるような波長を有するものが適宜選定される。例えば、ガラス:ネオジム3+レーザー、YAG:ネオジム3+レーザー、ルビーレーザー、ヘリウム−ネオンレーザー、クリプトンレーザー、アルゴンレーザー、H2レーザー、N2レーザー、半導体レーザー等のレーザー光をあげることができる。より好ましいレーザーとしては、YAG:ネオジム3+レーザー(レーザー光の波長:1060nm)や半導体レーザー(レーザー光の波長:500〜1000nm)が挙げられる。
The type of the
本実施の形態における高圧タンク用ライナーの製造装置は、さらに、図3に示すように、第2の分割体20を把持する把持具70と、把持具70に設けられ第1の分割体10の口金部14と第2の分割体20の口金部24を結ぶ軸方向に対して振動を加える振動発振機72とが設けられている。
As shown in FIG. 3, the high-pressure tank liner manufacturing apparatus in the present embodiment further includes a
従って、第2の分割体20内に挿入された反射鏡付き回転軸62を回転させながら、反射鏡60によって第1の分割体10内に照射されたレーザー光52をレーザー溶着部30の内周側に反射させ、両溶着端部を発熱させ溶融させて接合する際に、第1の分割体10の溶着端部及び第2の分割体20の溶着端部のそれぞれの溶融時の溶け込み量に応じて、第1の分割体10の口金部14と第2の分割体20の口金部24を結ぶ軸方向に対して振動発振機72から振動を加えることにより、仮に、両溶着部の間に隙間が発生した場合でも溶着しながら隙間を無くして、常に隙間なしの接合が行われる。このように、反射鏡付き回転軸62を高速回転させ、分割体内部からレーザー光を照射して溶着させ、且つ、分割体に振動を加えることにより、ライナーの生産性は飛躍的に向上する。
Accordingly, the
ここで、上述した把持具70は、例えば、第2の分割体20の口金部24を挟むように把持する把持具であっても、また第2の分割体20の外周部分を把持する把持具であってもよい。また、振動発振機72として、例えば、超音波振動発振機を用いることができる。
Here, the gripping
また、本実施の形態における高圧タンク用ライナーの製造装置は、図4に示すように、さらに、反射鏡60の角度を調整する反射鏡角度調整手段が設けられている。反射鏡角度調整手段は、図4に示すように、反射鏡付き回転軸62に隣接して進退可能に駆動可能な軸66であって、軸の先端には回動可能なヒンジが設けられ、ヒンジを介して反射鏡60と接続されている。
Further, as shown in FIG. 4, the high-pressure tank liner manufacturing apparatus in the present embodiment is further provided with reflecting mirror angle adjusting means for adjusting the angle of the reflecting
これにより、例えば、第1の分割体の溶着端部と第2の分割端部の溶着端部との対向接触部分(例えば嵌合部分)の幅(図2に示す「レーザー照射範囲」に相当する)が狭い場合には、図4に示す軸66を進出させて、図5Aに示すように反射鏡60を角度θ1に調整することで、反射されたレーザー光の幅を狭く調整してレーザー溶着部を効率よく溶着させることができる。一方、対向接触部分の幅が広い場合には、図4に示す軸66を退行させて、図5Bに示すように反射鏡60を角度θ2に調整することで、反射されたレーザー光の幅を広く調整してレーザー溶着端部全体を十分に溶着させることができる。
Thereby, for example, it corresponds to the width (for example, “laser irradiation range” shown in FIG. 2) of the facing contact portion (for example, the fitting portion) between the welding end of the first divided body and the welding end of the second divided end. 4), the
次に、本実施の形態における高圧タンク用ライナーの製造方法の一例は、図6に示すように、レーザー光に対して透過性を有する樹脂からなる第1の分割体の溶着端部とレーザー光に対して吸収性を有する樹脂からなる第2の分割体の溶着端部とを対向接触させてなる周回部を直接外周側から保持する工程(S100)と、第2の分割体に設けられた口金部を介して一方端に反射鏡が設けられた反射鏡付き回転軸を挿入する工程(S102)と、反射鏡付き回転軸を回転させながら、第1の分割体に設けられた口金部を介して反射鏡に対しレーザー光を照射し、照射されたレーザー光を前記周回部の内周側に反射させて両溶着端部を溶着接合する工程(S104)と、を有する。 Next, as shown in FIG. 6, an example of a method for manufacturing a high-pressure tank liner in the present embodiment includes a welded end portion of a first divided body made of a resin that is transparent to laser light, and laser light. A step (S100) of directly holding from the outer peripheral side the circumferential portion formed by bringing the welded end portion of the second divided body made of a resin having absorptivity into contact with each other, and the second divided body is provided. The step of inserting a rotating shaft with a reflecting mirror provided with a reflecting mirror at one end through the base portion (S102), and the rotating base rotating shaft with the reflecting mirror while rotating the rotating base with the reflecting portion. And irradiating the reflecting mirror with laser light, reflecting the irradiated laser light to the inner peripheral side of the circulating portion, and welding and joining both welding end portions (S104).
第1の分割体の溶着端部と第2の分割体の溶着端部とを対向接触させてなる周回部を外周側から保持するため、従来に比べ、両溶着端部間の隙間の発生が抑制される。また、レーザー光を周回部の内周側に反射させ両溶着端部を発熱させるので、発生した熱は第1の分割体及び第2の分割体の内部に籠もり、両溶着端部の溶融時間が従来に比べ長くなり、仮に対向接触時に両溶着端部間に隙間が生じても、十分に隙間を埋めながら溶着接合することができる。 In order to hold the circumference part formed by making the welding end part of the 1st division object and the welding end part of the 2nd division object counter-contact from the outer peripheral side, compared with the past, generation of the gap between both welding edge parts is produced. It is suppressed. In addition, since the laser beam is reflected on the inner peripheral side of the circulating portion and both welding end portions are heated, the generated heat is trapped inside the first divided body and the second divided body, and the fusion end portions are melted. The time is longer than in the conventional case, and even if a gap is generated between the two welding end portions at the time of facing contact, the welding can be performed while sufficiently filling the gap.
本実施の形態における高圧タンク用ライナーの製造方法の他の一例は、図7に示すように、レーザー光に対して透過性を有する樹脂からなる第1の分割体の溶着端部とレーザー光に対して吸収性を有する樹脂からなる第2の分割体の溶着端部とを対向接触させた周回部を外周側から保持する工程(S100)と、第2の分割体に設けられた口金部を介して一方端に反射鏡が設けられた反射鏡付き回転軸を挿入する工程(S102)と、反射鏡付き回転軸を回転させながら、第1の分割体に設けられた口金部を介して反射鏡に対しレーザー光を照射し、照射されたレーザー光を前記周回部の内周側に反射させ、且つ、第2の分割体を把持しながら第1の分割体の口金部と第2の分割体の口金部を結ぶ軸方向に対して振動を与え、両溶着端部を溶着接合する工程(S108)と、を有する。 Another example of the manufacturing method of the high-pressure tank liner in the present embodiment is as shown in FIG. 7 in the welding end portion of the first divided body made of a resin having transparency to the laser beam and the laser beam. In contrast, a step (S100) of holding a circumferential portion in which the welded end portion of the second divided body made of a resin having an absorptivity is opposed to each other from the outer circumferential side, and a base portion provided in the second divided body are provided. Step (S102) of inserting a rotating shaft with a reflecting mirror provided with a reflecting mirror at one end thereof, and reflecting through a base portion provided in the first divided body while rotating the rotating shaft with a reflecting mirror. The mirror is irradiated with laser light, the irradiated laser light is reflected to the inner peripheral side of the rotating part, and the base part of the first divided body and the second divided part are held while holding the second divided body Vibration is applied to the axial direction connecting the base parts of the body, and both welding ends are welded. Having a step (S108) to be joined.
図7に示す高圧タンク用ライナーの製造方法において、さらに、両溶着端部を発熱させ溶融させて接合する際に、第1の分割体の溶着端部及び第2の分割体の溶着端部のそれぞれの溶融時の溶け込み量に応じて、第1の分割体の口金部と第2の分割体の口金部を結ぶ軸方向に対して振動発振機から振動が加えられるので、さらに両溶着端部間の隙間を無くして接合することができる。 In the manufacturing method of the liner for a high-pressure tank shown in FIG. 7, when both the welding end portions are heated and melted and joined, the welding end portions of the first divided body and the welding end portions of the second divided body are connected. Since vibration is applied from the vibration oscillator to the axial direction connecting the base part of the first divided body and the base part of the second divided body according to the amount of penetration at the time of melting, both welding end parts It is possible to join without a gap between them.
本実施の形態における高圧タンクは、図3に示す高圧タンク用ライナーの製造装置または図6,7に示す高圧タンク用ライナーの製造方法により2つの分割体を接合してなるライナーと、ライナーに熱硬化性樹脂を含浸した繊維を巻回して硬化させてなる繊維強化樹脂層と、を有する。 The high-pressure tank according to the present embodiment includes a liner formed by joining two divided bodies by a high-pressure tank liner manufacturing apparatus shown in FIG. 3 or a high-pressure tank liner manufacturing method shown in FIGS. A fiber reinforced resin layer formed by winding and curing a fiber impregnated with a curable resin.
上述したように、従来に比べ、安定した溶着品質を有するライナーを高速で生産することができるので、品質の安定した高圧タンクの生産性が従来に比べ向上する。 As described above, since a liner having stable welding quality can be produced at high speed as compared with the conventional case, the productivity of the high-pressure tank with stable quality is improved as compared with the conventional case.
本発明は、高圧タンクを用いる用途であれば、いかなる用途にも有効であるが、特に車両用の燃料電池に燃料ガスを供給するための高圧タンクに供することができる。 The present invention is effective for any application as long as it uses a high-pressure tank, but can be used particularly for a high-pressure tank for supplying fuel gas to a fuel cell for vehicles.
10 第1の分割体、12,22 溶着端部、14,24 口金部、20 第2の分割体、30 レーザー溶着部、40 押さえ治具、50 レーザー源、52 レーザー光、60 反射鏡、62 反射鏡付き回転軸、64 回転手段、66 軸、70 把持具、72 振動発振機、300 高圧タンク。
DESCRIPTION OF
Claims (6)
第1の分割体に設けられた口金部を介して第1の分割体の内部にレーザー光を照射するレーザー源と、
第2の分割体に設けられた口金部を介して第2の分割体内に挿入され、照射されたレーザー光を前記周回部の内周側に反射する反射鏡が一方端に設けられた反射鏡付き回転軸と、
反射鏡付き回転軸を回転させる回転手段と、
を有することを特徴とする高圧タンク用ライナーの製造装置。 The welding end portion of the first divided body made of a resin that is transmissive to laser light and the welding end portion of the second divided body made of a resin that is absorbent to the laser light are made to face each other. A holding jig for holding the rotating portion from the outer peripheral side;
A laser source for irradiating the inside of the first divided body with a laser beam through a base provided in the first divided body;
A reflecting mirror provided at one end with a reflecting mirror that is inserted into the second divided body through a base provided in the second divided body and reflects the irradiated laser light to the inner peripheral side of the rotating portion. A rotating shaft with
A rotating means for rotating a rotating shaft with a reflecting mirror;
An apparatus for producing a liner for a high-pressure tank, comprising:
さらに、第2の分割体を把持しながら、第1の分割体の口金部と第2の分割体の口金部を結ぶ軸方向に対して振動を加える振動発振機を有することを特徴とする高圧タンク用ライナーの製造装置。 In the manufacturing apparatus of the liner for high pressure tanks of Claim 1,
And a vibration oscillator for applying vibration to an axial direction connecting the base portion of the first divided body and the base portion of the second divided body while holding the second divided body. Tank liner manufacturing equipment.
さらに、反射鏡の角度を調整する反射鏡角度調整手段が設けられていることを特徴とする高圧タンク用ライナーの製造装置。 In the manufacturing apparatus of the liner for high pressure tanks of Claim 1 or Claim 2,
The apparatus for manufacturing a liner for a high-pressure tank is further provided with reflecting mirror angle adjusting means for adjusting the angle of the reflecting mirror.
第2の分割体に設けられた口金部を介して挿入された一方端に反射鏡が設けられた反射鏡付き回転軸を回転させながら、第1の分割体に設けられた口金部を介して反射鏡に対しレーザー光を照射し、照射されたレーザー光を前記周回部の内周側に反射させて両溶着端部を溶着接合する工程と、
を有することを特徴とする高圧タンク用ライナーの製造方法。 The welding end portion of the first divided body made of a resin that is transmissive to laser light and the welding end portion of the second divided body made of a resin that is absorbent to the laser light are made to face each other. A step of holding the rotating portion from the outer peripheral side;
While rotating the rotating shaft with the reflecting mirror provided with the reflecting mirror at one end inserted through the base portion provided in the second divided body, through the base portion provided in the first divided body. Irradiating the reflecting mirror with laser light, reflecting the irradiated laser light to the inner peripheral side of the circulating portion, and welding and bonding both welding ends;
The manufacturing method of the liner for high pressure tanks characterized by having.
第2の分割体に設けられた口金部を介して挿入された一方端に反射鏡が設けられた反射鏡付き回転軸を回転させながら、第1の分割体に設けられた口金部を介して反射鏡に対しレーザー光を照射し、照射されたレーザー光を前記周回部の内周側に反射させ、且つ、第2の分割体を把持しながら第1の分割体の口金部と第2の分割体の口金部を結ぶ軸方向に対して振動を加え、両溶着端部を溶着接合する工程と、
を有することを特徴とする高圧タンク用ライナーの製造方法。 Circulation in which the welding end portion of the first divided body made of a resin that is transparent to laser light and the welding end portion of the second divided body that is made of a resin that is absorbent to the laser light are opposed to each other. Holding the portion from the outer peripheral side;
While rotating the rotating shaft with the reflecting mirror provided with the reflecting mirror at one end inserted through the base portion provided in the second divided body, through the base portion provided in the first divided body. The reflecting mirror is irradiated with laser light, the irradiated laser light is reflected to the inner peripheral side of the rotating part, and the base part of the first divided body and the second part are held while holding the second divided body. A step of applying vibration to the axial direction connecting the base portions of the divided bodies, and welding and bonding both welding end portions;
The manufacturing method of the liner for high pressure tanks characterized by having.
前記ライナーに熱硬化性樹脂を含浸した繊維を巻回して硬化させて繊維強化樹脂層を形成する、
ことを特徴とする高圧タンクの製造方法。 To obtain a liner formed by joining the two divided bodies by the production method of the high-pressure tank liner according to 請 Motomeko 4 or claim 5,
The fibers impregnated with thermosetting resin is cured by winding to form a fiber-reinforced resin layer in the liner,
Method for producing a high-pressure tank, wherein the this.
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