JPH07167392A - Manufacture of pressure vessel - Google Patents
Manufacture of pressure vesselInfo
- Publication number
- JPH07167392A JPH07167392A JP34410793A JP34410793A JPH07167392A JP H07167392 A JPH07167392 A JP H07167392A JP 34410793 A JP34410793 A JP 34410793A JP 34410793 A JP34410793 A JP 34410793A JP H07167392 A JPH07167392 A JP H07167392A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molding
- metal mold
- molding material
- container body
- 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.)
- Pending
Links
Classifications
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/20—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
- B29C41/06—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould about two or more axes
-
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/005—Using a particular environment, e.g. sterile fluids other than air
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/46—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7154—Barrels, drums, tuns, vats
- B29L2031/7156—Pressure vessels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、容器本体を回転成形法
で形成する圧力容器の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a pressure vessel in which a vessel body is formed by a rotational molding method.
【0002】[0002]
【従来の技術】圧力容器の容器本体を回転成形法で形成
することは、例えば特開平1−299400号公報に公
知である。一般的な回転成形法では、成形用の金型に粉
末状のポリマー化された成形材を投入し、金型を加熱し
て成形材を溶融させ、これを金型の内面に付着成長させ
て成形を行う。このとき、成形材の付着厚みを均一化す
るために、金型を1〜2軸まわりに回転ないしは揺振操
作する。2. Description of the Related Art Forming a container body of a pressure container by a rotational molding method is known, for example, in JP-A-1-299400. In a general rotational molding method, a powdered polymerized molding material is put into a molding die, the mold is heated to melt the molding material, and this is attached and grown on the inner surface of the mold. Perform molding. At this time, in order to make the adhered thickness of the molding material uniform, the mold is rotated or shaken about 1-2 axes.
【0003】[0003]
【発明が解決しようとする課題】従来の回転成形法で
は、粉末状の成形材を金型の内表面に溶融付着させ、付
着厚みを除々に増しながら容器の肉厚を形成して行く。
そのため、他の成形法に比べて、成形品が固化する際の
収縮量が大きく、収縮に伴う成形欠陥を生じやすい。ま
た、成形に長時間を要し、多品種少量生産には適してい
るが、中量ないしは多量生産時には製品コストが高く付
く。圧力容器用の容器本体の成形材としては、ガスバリ
ア性と機械的強度を同時に満足できるポリアミド樹脂を
用いることが多いが、ポリアミド樹脂を成形材にして回
転成形を行う場合には、成形材の適正な加熱温度範囲が
ごく狭い範囲に限られている。そのため、成形時の温度
管理を厳密に行う必要があり、このことも容器本体の成
形コストを増加させる一因であった。溶融した成形材
は、流動しにくく付着成長しやすいように調整されてい
るため、成形した容器の肉壁の厚みにばらつきを生じや
すい不利もある。In the conventional rotational molding method, a powdery molding material is melted and adhered to the inner surface of a mold, and the thickness of the container is gradually increased to form the wall thickness of the container.
Therefore, as compared with other molding methods, the amount of shrinkage when the molded product is solidified is large, and a molding defect due to shrinkage is likely to occur. Further, it requires a long time for molding and is suitable for high-mix low-volume production, but the product cost is high for medium or high volume production. As the molding material of the container body for pressure vessels, polyamide resin that can satisfy both gas barrier properties and mechanical strength is often used. The heating temperature range is limited to a very narrow range. Therefore, it is necessary to strictly control the temperature at the time of molding, which is also one of the reasons for increasing the molding cost of the container body. Since the molten molding material is adjusted so that it does not flow easily and adheres and grows easily, there is also a disadvantage that the thickness of the wall of the molded container tends to vary.
【0004】本発明では、モノマーを成形材にして金型
内で重合と成形を同時に行うが、その基本原理は、反応
射出成形法(RIM)や、筒状体の多品種少量生産に適
した遠心重合成形法に見出すことができる。なお、前者
ではモノマー原料と重合を開始させる触媒等を混合した
後、これらを金型内へ射出供給し、後者ではモノマーを
予備重合して水飴状にした後、これを金型内へ充填す
る。In the present invention, a monomer is used as a molding material, and polymerization and molding are simultaneously carried out in a mold. Its basic principle is suitable for reaction injection molding (RIM) and multi-product small-volume production of cylindrical bodies. It can be found in the centrifugal polymerization molding method. In the former case, after mixing the monomer raw material and the catalyst for initiating the polymerization, these are injected and supplied into the mold, and in the latter case, the monomers are prepolymerized to form a starch syrup and then filled into the mold. .
【0005】本発明の目的は、圧力容器用の容器本体を
回転成形法で成形するについて、固化時の収縮に伴う成
形欠陥を解消できる容器本体の製造方法を提供すること
にある。本発明の他の目的は、圧力容器の容器本体を回
転成形法でより安価に製造し、少量ないしは中量生産時
の容器本体の製造コストを低減化するにある。An object of the present invention is to provide a method of manufacturing a container body for a pressure container, which is capable of eliminating a molding defect caused by shrinkage during solidification when the container body is molded by a rotational molding method. Another object of the present invention is to manufacture the container body of the pressure container more inexpensively by the rotational molding method, and to reduce the manufacturing cost of the container body at the time of small volume or medium volume production.
【0006】[0006]
【課題を解決するための手段】本発明方法では、以下の
製造過程を経て容器本体を形成する。まず、成形用金型
Dの内部に液状のモノマーないしは予備重合された高粘
度流動体状のオリゴマーからなる成形材と重合開始材と
を投入して密閉する。成形用金型Dの全体を直交する二
軸まわりに回転および揺振しながら所定の重合温度で加
熱する。所定の重合時間を経過した後に、成形用金型D
の全体を引き続き回転および揺振しながら所定の成形温
度で加熱する。そして成形用金型Dを冷却した後、型開
きして容器本体1を離型する。In the method of the present invention, the container body is formed through the following manufacturing process. First, a molding material made of a liquid monomer or a prepolymerized high-viscosity fluid-like oligomer and a polymerization initiator are put into the molding die D and sealed. The entire molding die D is heated at a predetermined polymerization temperature while being rotated and vibrated about two orthogonal axes. Molding die D after a predetermined polymerization time
The whole is continuously heated and shaken at a predetermined molding temperature. Then, after cooling the molding die D, the mold is opened and the container body 1 is released.
【0007】[0007]
【作用】液状のモノマーないしは予備重合された高粘度
流動体状のオリゴマーを成形材にして、これを成形用金
型Dに充填して賦形と重合とを同時に行うので、粉末状
のポリマーを成形材とする場合に比べて、成形品が固化
する際の収縮量を減少できる。原料コストも減少でき
る。流動しやすいモノマーないしはオリゴマーを成形材
にして、重合しながら成形を行うので、賦形をより速や
かに行え、成形に要する時間を短縮できる。[Function] A liquid monomer or a prepolymerized high-viscosity fluid oligomer is used as a molding material, which is filled in a molding die D to perform shaping and polymerization at the same time. The amount of shrinkage when the molded product solidifies can be reduced as compared with the case of using a molded material. Raw material costs can also be reduced. Since a monomer or oligomer that is easy to flow is used as a molding material and molding is performed while polymerizing, shaping can be performed more quickly and the time required for molding can be shortened.
【0008】[0008]
【発明の効果】本発明の製造方法においては、ポリマー
原料である液状のモノマーないしは予備重合したオリゴ
マーを成形材にして容器本体1の回転成形を行うので、
成形品が固化する際の収縮量を減少でき、これにより、
粉末回転成形法において不可避であった収縮に伴う成形
欠陥を解消できる。従来の回転成形方法に比べて原料コ
ストを減少できる。成形用金型Dの内部で重合反応と賦
形とを同時進行的に行うので、従来の成形方法に比べて
成形に要する時間を短縮でき、その分だけ容器本体1の
生産量を増加して、全体として圧力容器用の容器本体1
の量産性が良くなり製造コストを低減化できる。In the production method of the present invention, since the liquid monomer or the prepolymerized oligomer, which is a polymer raw material, is used as the molding material to perform the rotational molding of the container body 1,
The amount of shrinkage when the molded product solidifies can be reduced, which allows
Molding defects associated with shrinkage, which were inevitable in the powder rotation molding method, can be eliminated. The raw material cost can be reduced as compared with the conventional rotational molding method. Since the polymerization reaction and shaping are simultaneously performed in the molding die D, the time required for molding can be shortened as compared with the conventional molding method, and the production amount of the container body 1 can be increased accordingly. , Container body 1 for pressure vessel as a whole
The mass productivity is improved and the manufacturing cost can be reduced.
【0009】[0009]
【実施例】図1ないし図3は本発明を液化天然ガス用の
圧力容器の製造に適用した実施例を示す。図2において
圧力容器は、回転成形装置で成形される横長円筒状の容
器本体1と、容器本体1の外面に被覆される補強層2と
からなる。容器本体1の左右端には、部分球殻状の端壁
3・3を胴部と一体に設け、胴部の筒軸中心線と交差す
る両端壁3・3の中央に口金4・4を設けてある。容器
本体1は、ガスバリア性に優れるポリアミド樹脂で形成
する。補強層2はフィラメントワインディング処理を行
って形成し、樹脂が含浸された長繊維を容器本体1の外
面に巻き付けて積層し硬化させるのである。ガラス繊
維、炭素繊維、アラミド繊維等が長繊維の代表例であ
り、これに含浸させる樹脂としてはエポキシ樹脂、フェ
ノール樹脂、不飽和ポリエステル樹脂等が挙げられる。
左右の口金4・4は、長繊維を巻き付ける際の掛止体と
して利用される。1 to 3 show an embodiment in which the present invention is applied to manufacture of a pressure vessel for liquefied natural gas. In FIG. 2, the pressure container is composed of a horizontally elongated cylindrical container body 1 molded by a rotational molding device and a reinforcing layer 2 coated on the outer surface of the container body 1. Partially spherical shell-shaped end walls 3.3 are provided integrally with the body at the left and right ends of the container body 1, and caps 4.4 are provided at the centers of both end walls 3.3 intersecting the cylinder axis center line of the body. It is provided. The container body 1 is formed of a polyamide resin having excellent gas barrier properties. The reinforcing layer 2 is formed by performing a filament winding process, and the long fibers impregnated with the resin are wound around the outer surface of the container body 1 to be laminated and cured. Glass fibers, carbon fibers, aramid fibers and the like are typical examples of the long fibers, and examples of the resin impregnated in the long fibers include epoxy resins, phenol resins, unsaturated polyester resins and the like.
The left and right mouthpieces 4 and 4 are used as hooks when winding the long fibers.
【0010】図3は容器本体1を回転成形するための成
形用金型(以下、単に金型という)Dを示す。この金型
Dは円筒状の胴部型6と、胴部型6の両端にフランジ接
合される左右の端部型7・8とからなり、両端部型7・
8の中央のボス9・9に口金4を固定保持する。詳しく
は、口金4の筒軸4aを各端部型7・8の内面側からボ
ス9の保持穴に内嵌し、ボス9の外端面に外接する止め
金具10で口金4をボス9側へ引き寄せ固定しておく。
止め金具10は二重筒状に形成されており、内筒の外面
にねじ11を形成し、このねじ11を口金4の雌ねじ4
bにねじ込む。符号13は止め金具10に固定した蒸気
供給用のパイプ、14は金型Dの全体を回転させるため
の車輪である。FIG. 3 shows a molding die (hereinafter, simply referred to as a die) D for rotationally molding the container body 1. The mold D is composed of a cylindrical body part mold 6 and left and right end part molds 7 and 8 that are flange-joined to both ends of the body part mold 6.
The base 4 is fixedly held by the boss 9 at the center of 8. Specifically, the cylinder shaft 4a of the base 4 is fitted into the holding hole of the boss 9 from the inner surface side of each end die 7 and 8, and the base 4 is moved to the boss 9 side with a stopper 10 circumscribing the outer end surface of the boss 9. Pull and fix it.
The stopper 10 is formed in a double cylinder shape, and a screw 11 is formed on the outer surface of the inner cylinder.
screw into b. Reference numeral 13 is a pipe for supplying steam fixed to the stopper 10, and 14 is a wheel for rotating the entire mold D.
【0011】容器本体1は上記の金型Dを用いて、図1
に示す成形手順で成形する。すなわち、金型Dの両端部
型7・8に口金4を止め金具10で取り付け、片方の端
部型7を胴部型6に組み付け、胴部型6の他方の開口部
から液状のモノマーからなる成形材Mと重合開始材とを
型内に投入し(図1(a))、胴部型6の他方の端部型
8を組み付けて金型Dを密閉する。成形材としては液状
のイプシロン−カプロラクタム(シックスナイロン(商
標)のモノマー)を用い、重合開始材となる触媒とし
て、適量の水と少量の酸および塩基物を加える。The container body 1 is formed by using the above-mentioned mold D, as shown in FIG.
Mold according to the molding procedure shown in. That is, the die 4 is attached to both end molds 7 and 8 of the mold D by the metal fittings 10, one end mold 7 is assembled to the body mold 6, and the liquid monomer is discharged from the other opening of the body mold 6. Then, the molding material M and the polymerization initiation material are charged into the mold (FIG. 1A), the other end mold 8 of the body mold 6 is assembled, and the mold D is sealed. A liquid epsilon-caprolactam (monomer of Six Nylon (trademark)) is used as a molding material, and an appropriate amount of water and a small amount of an acid and a base substance are added as a catalyst serving as a polymerization initiator.
【0012】止め金具10に設けたパイプ13を介して
水蒸気(不活性ガス)を金型D内へ供給し、金型Dの全
体を直交する二軸のまわりに回転および揺振させ、金型
Dの外面に設けた熱源16で成形材を所定の重合温度
(220〜300℃)に加熱する(図1(b))。熱源
16としては、赤外線ランプ、ヒータ、バーナ、過熱水
蒸気、加熱流体などを適用でき、約10分間加熱状態を
持続する。この重合過程において、成形材は重合しなが
ら賦形される。Water vapor (inert gas) is supplied into the mold D through a pipe 13 provided on the stopper 10, and the whole mold D is rotated and shaken around two axes orthogonal to each other, and the mold is The molding material is heated to a predetermined polymerization temperature (220 to 300 ° C.) by the heat source 16 provided on the outer surface of D (FIG. 1B). An infrared lamp, a heater, a burner, superheated steam, a heating fluid, or the like can be applied as the heat source 16, and the heating state is maintained for about 10 minutes. In this polymerization process, the molding material is shaped while polymerizing.
【0013】所定の重合時間を経過した後に、金型Dの
全体を引き続き回転および揺振しながら、所定の成形温
度(220〜300℃)で成形材を加熱して、胴部型6
に付着したポリマーの厚みを平滑化し、端部型7・8の
内面におけるポリマー厚みを他より分厚くする。この調
整成形過程時には、水蒸気の供給を停止して、成形材か
ら発生するガスをパイプ13を介して排出する。調整成
形に要する時間は約15分である。After the predetermined polymerization time has passed, the molding material is heated at a predetermined molding temperature (220 to 300 ° C.) while the whole mold D is continuously rotated and shaken, so that the body part mold 6
The thickness of the polymer adhered to is smoothed, and the thickness of the polymer on the inner surfaces of the end molds 7 and 8 is made thicker than the others. During this adjustment molding process, the supply of steam is stopped and the gas generated from the molding material is discharged through the pipe 13. The time required for adjustment molding is about 15 minutes.
【0014】金型Dの外面に沿って設けたノズル17で
水を散布して、金型Dおよび成形された容器本体1を常
温まで冷却し(図1(c))、金型Dを成形装置から取
り外して型開きし、容器本体1を離型する(図1
(d))。旋削等によって、口金4の筒軸内面に付着し
た成形材を除去し整形した後、容器本体1の内面に熱水
を噴き付けて、オリゴマーを洗い落とし、同時に旋削屑
を除去する。最後に容器本体1の外面に補強層2を形成
して圧力容器を完成する。口金4には、バルブや内圧指
示用の計器などの外装付属品が装着される。Water is sprayed by a nozzle 17 provided along the outer surface of the mold D, and the mold D and the molded container body 1 are cooled to room temperature (FIG. 1 (c)) to mold the mold D. After removing from the device and opening the mold, the container body 1 is released (see FIG. 1).
(D)). After the molding material attached to the inner surface of the cylinder shaft of the die 4 is removed and shaped by turning or the like, hot water is sprayed on the inner surface of the container body 1 to wash off the oligomer and simultaneously remove turning waste. Finally, the reinforcing layer 2 is formed on the outer surface of the container body 1 to complete the pressure container. Exterior accessories such as valves and measuring instruments for indicating the internal pressure are attached to the base 4.
【0015】上記の実施例では、重合時の不活性ガスと
して水蒸気を用いたが、窒素ガスや炭酸ガスを適用する
ことができる。金型Dは周方向へ分割してあってもよ
い。成形材としては、モノマーを予備重合して水飴状に
した高粘度流動体状のオリゴマーを用いることができ
る。Although water vapor is used as the inert gas during the polymerization in the above embodiments, nitrogen gas or carbon dioxide gas can be applied. The mold D may be divided in the circumferential direction. As the molding material, a high-viscosity fluid-like oligomer obtained by prepolymerizing a monomer to form a starch syrup can be used.
【図1】容器本体の製造過程を示す説明図である。FIG. 1 is an explanatory view showing a manufacturing process of a container body.
【図2】圧力容器の一部破断正面図である。FIG. 2 is a partially cutaway front view of the pressure vessel.
【図3】成形用金型の断面図である。FIG. 3 is a cross-sectional view of a molding die.
1 容器本体 4 口金 16 熱源 17 ノズル 1 container body 4 base 16 heat source 17 nozzle
Claims (1)
いしは予備重合された高粘度流動体状のオリゴマーから
なる成形材と重合開始材とを投入して密閉し、 成形用金型Dの全体を直交する二軸まわりに回転および
揺振しながら所定の重合温度で加熱し、 所定の重合時間を経過した後に、成形用金型Dの全体を
引き続き回転および揺振しながら所定の成形温度で加熱
し、 成形用金型Dを冷却した後、型開きして容器本体1を離
型することを特徴とする圧力容器の製造方法。1. A molding material comprising a liquid monomer or a prepolymerized high-viscosity fluid oligomer and a polymerization initiator are placed in the molding die D and sealed, and the molding die D The whole is heated at a predetermined polymerization temperature while rotating and shaking about two orthogonal axes, and after a predetermined polymerization time has elapsed, the whole molding die D is continuously rotated and shaken at a predetermined molding temperature. The method for producing a pressure container is characterized in that after heating the mold D to cool the molding die D, the mold is opened to release the container body 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34410793A JPH07167392A (en) | 1993-12-16 | 1993-12-16 | Manufacture of pressure vessel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34410793A JPH07167392A (en) | 1993-12-16 | 1993-12-16 | Manufacture of pressure vessel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH07167392A true JPH07167392A (en) | 1995-07-04 |
Family
ID=18366699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP34410793A Pending JPH07167392A (en) | 1993-12-16 | 1993-12-16 | Manufacture of pressure vessel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07167392A (en) |
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KR20020095773A (en) * | 2001-06-15 | 2002-12-28 | 윤광준 | A composite pressure vessel and method for manufacturing the same |
FR2871091A1 (en) * | 2004-06-03 | 2005-12-09 | Commissariat Energie Atomique | METHOD FOR MANUFACTURING A SEAL SPEED OF TYPE IV TANK AND TYPE IV TANK |
WO2007144426A1 (en) * | 2006-06-16 | 2007-12-21 | Commissariat A L'energie Atomique | Method for manufacturing a sealing bladder made of thermosetting polymer for a tank containing a pressurized fluid, such as a composite tank, and a tank |
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-
1993
- 1993-12-16 JP JP34410793A patent/JPH07167392A/en active Pending
Cited By (20)
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---|---|---|---|---|
KR20020095773A (en) * | 2001-06-15 | 2002-12-28 | 윤광준 | A composite pressure vessel and method for manufacturing the same |
AU2005254290B2 (en) * | 2004-06-03 | 2010-10-14 | Commissariat A L'energie Atomique | Process for the manufacture of a leaktight bladder of a type IV tank, and type IV tank |
FR2871091A1 (en) * | 2004-06-03 | 2005-12-09 | Commissariat Energie Atomique | METHOD FOR MANUFACTURING A SEAL SPEED OF TYPE IV TANK AND TYPE IV TANK |
WO2005123359A3 (en) * | 2004-06-03 | 2006-04-13 | Commissariat Energie Atomique | Method for producing a bladder for sealing a type iv reservoir, and corresponding type iv reservoir |
AU2005254290B8 (en) * | 2004-06-03 | 2010-11-11 | Commissariat A L'energie Atomique | Process for the manufacture of a leaktight bladder of a type IV tank, and type IV tank |
JP2008501546A (en) * | 2004-06-03 | 2008-01-24 | コミツサリア タ レネルジー アトミーク | Method for manufacturing leak-proof bladder of type IV tank and type IV tank |
US8981039B2 (en) | 2005-11-24 | 2015-03-17 | Commissariat A L'energie Atomique | Caprolactam-based composition, process for manufacturing an impermeable element, and tank |
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WO2007144426A1 (en) * | 2006-06-16 | 2007-12-21 | Commissariat A L'energie Atomique | Method for manufacturing a sealing bladder made of thermosetting polymer for a tank containing a pressurized fluid, such as a composite tank, and a tank |
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KR20170015355A (en) * | 2015-05-29 | 2017-02-08 | 고요 써모 시스템 가부시끼 가이샤 | Tank cooling device |
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JP2022053579A (en) * | 2020-09-25 | 2022-04-06 | トヨタ自動車株式会社 | Method for manufacturing high pressure tank |
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