JPH01160619A - Method for manufacturing vessel - Google Patents
Method for manufacturing vesselInfo
- Publication number
- JPH01160619A JPH01160619A JP62318925A JP31892587A JPH01160619A JP H01160619 A JPH01160619 A JP H01160619A JP 62318925 A JP62318925 A JP 62318925A JP 31892587 A JP31892587 A JP 31892587A JP H01160619 A JPH01160619 A JP H01160619A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- melting point
- layer
- container
- vessel
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000002844 melting Methods 0.000 claims abstract description 20
- 230000008018 melting Effects 0.000 claims abstract description 20
- 239000012778 molding material Substances 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 230000004888 barrier function Effects 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000003973 paint Substances 0.000 claims description 32
- 229920001059 synthetic polymer Polymers 0.000 claims 3
- 239000000463 material Substances 0.000 abstract description 11
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract 4
- 239000007924 injection Substances 0.000 abstract 4
- 238000001746 injection moulding Methods 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 description 9
- 239000002828 fuel tank Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000005033 polyvinylidene chloride Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 235000019809 paraffin wax Nutrition 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、燃料用タンクに代表される可撓性を有する容
器の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for manufacturing a flexible container, typified by a fuel tank.
従来の燃料用タンクの製造方法としては、たとえば第２
図に示す通り、石膏やカードボード等により内部に空洞
部２を有する成形モールド１を作成し、この成形モール
ド１に容器の開口部４となる部分を除いて全面に各種の
塗料を塗付して塗料層３を形成し、通常、その上を補強
材５などで補強し、該塗料層３を硬化（加硫）させた後
、成形モールド１を破壊、除去して、前記塗料層３と補
強層５等からなる容器とする方法が知られている。As a conventional method for manufacturing a fuel tank, for example, the second
As shown in the figure, a mold 1 having a cavity 2 inside is made of plaster, cardboard, etc., and various paints are applied to the entire surface of the mold 1 except for the part that will become the opening 4 of the container. to form a paint layer 3, which is usually reinforced with a reinforcing material 5, etc., and after curing (vulcanization) the paint layer 3, the mold 1 is destroyed and removed, and the paint layer 3 and the paint layer 3 are removed. A method is known in which the container is made of a reinforcing layer 5 or the like.
このような従来の容器の製造方法においては、その製造
工程で成形モールドが破壊されるが、この成形モールド
は破壊されると再利用することができないし、さらに上
記成形モールドを破壊する工程で、その上に形成された
塗料層（容器そのもの）を傷付ける危険があるため、作
業性、生産性に劣り、等外表面が出来るのを避けること
ができなかった。In such conventional container manufacturing methods, the mold is destroyed in the manufacturing process, but once this mold is destroyed, it cannot be reused, and furthermore, in the process of destroying the mold, Since there is a risk of damaging the paint layer formed thereon (the container itself), workability and productivity are poor, and the formation of a rough surface cannot be avoided.
［発明の目的〕
本発明の目的は、上述した成形モールドの除去に伴う容
器の傷の発生を防止することができ、かつ成形モールド
を形成する素材をモールドの成形材料として繰り返し再
利用することができ、前記容器の生産、作業上の欠点を
解消した容器の製造方法を提供するにある。[Object of the Invention] The object of the present invention is to prevent the occurrence of damage to the container due to the removal of the forming mold as described above, and to repeatedly reuse the material forming the forming mold as a molding material for the mold. It is an object of the present invention to provide a method for manufacturing a container which eliminates the disadvantages in production and operation of the container.
〔発明の構成〕２
このような本発明の目的は、融点が約５０〜８０℃であ
るモールド成形材料からなる容器の成形モールドを作成
し、この成形モールドに前記モールド成形材料の融点以
下の温度で硬化する塗料を塗付し、前記塗料を硬化せし
めて該塗料層を形成し、次いで前記モールド成形材料の
融点以上の温度に加熱して成形モールドを融解、除去す
ることにより達成することができる。[Structure of the Invention] 2 The object of the present invention is to create a mold for a container made of a molding material having a melting point of about 50 to 80°C, and to heat the mold to a temperature below the melting point of the molding material. This can be achieved by applying a paint that hardens at a temperature of 100 mL, curing the paint to form the paint layer, and then heating the mold to a temperature higher than the melting point of the molding material to melt and remove the mold. .
第１図は本発明の容器の１製造方法を説明するための断
面図であり、図は熱溶融性の成形材料から作成されたブ
ロック状の成形モールド１の外表面に塗料を塗付して塗
料層３を形成し、さらにその上に補強層５を設けた状態
を示している。FIG. 1 is a cross-sectional view for explaining one manufacturing method of the container of the present invention, and the figure shows a process in which paint is applied to the outer surface of a block-shaped mold 1 made from a hot-melt molding material. A state in which a paint layer 3 is formed and a reinforcing layer 5 is further provided thereon is shown.
本発明の成形モールドは、融点が約５０〜８０℃である
モールド成形材料から形成されていることが必要である
。すなわち、該モールド成形材料の融点が約５０℃より
も低いと、得られる成形モールドの耐熱性が十分ではな
く、成形作業性が悪くなるし、また、８０℃を超えると
、後述するように、該成形モールド面に各種の塗料を塗
布して、容器を形成している層の溶融温度を高くしなけ
ればならず、通用可能な塗料の種類が制限されたり、該
成形モールドを溶融した後の冷却温度差により、容器の
寸法変化を生じ易くなるから好ましくない。The mold of the present invention is required to be formed from a molding material having a melting point of about 50 to 80°C. That is, if the melting point of the molding material is lower than about 50°C, the resulting mold will not have sufficient heat resistance and the molding workability will be poor, and if it exceeds 80°C, as described below, Various paints must be applied to the surface of the mold to raise the melting temperature of the layer forming the container, which may limit the types of paints that can be used or This is not preferable because the cooling temperature difference tends to cause dimensional changes in the container.
そして、該モールド成形材料は離型性および耐薬品性を
有していることが望ましい。すなわち、該モールド成形
材料が離型性を有していないときは、型の形状にマツチ
した成形モールドの作成が困難になったり、容器の成形
時に容器が変形したり、内部の洗浄が煩雑になるために
好ましくないし、また、耐薬品性を有していない時は、
成形モールドに塗付する塗料の種類に制約を受けるので
好ましくない。Further, it is desirable that the molding material has mold releasability and chemical resistance. In other words, if the molding material does not have mold releasability, it may be difficult to create a mold that matches the shape of the mold, the container may be deformed during molding, or cleaning the inside may become complicated. It is undesirable because it becomes chemically resistant, and when it does not have chemical resistance,
This is not preferable because it imposes restrictions on the type of paint applied to the mold.
このようなモールド成形材料の例としては、たとえばポ
リエチレングリコール（以下、ＰＥＧと略す）、パラフ
ィンワックス類、蛾類を代表例として挙げることができ
る。Typical examples of such molding materials include polyethylene glycol (hereinafter abbreviated as PEG), paraffin waxes, and moths.
このようなモールド成形材料は、その溶融温度に加熱さ
れて、所望の形態、形状の型内に流し込まれ、次いで冷
却、離型して前記型を除いて、酸型に対応した形態、形
状の成形モールドにされる。Such a molding material is heated to its melting temperature, poured into a mold having a desired shape and shape, and then cooled and released from the mold to form a shape and shape corresponding to the acid mold. Made into a mold.
かくして得られた成形モールドには、用途に応じた特性
を満足する塗料がスプレー、コーティング等により塗付
される。The mold thus obtained is coated with a paint that satisfies the characteristics required for the purpose by spraying, coating, or the like.
該塗料は、成形モールドに塗付した塗料層が完全に硬化
する前に融解したり、変形し、良好な容器の製造を妨げ
ることがないように、前記モールド成形材料の融点以下
、好ましくは室温で硬化するものを使用する必要がある
。The paint should be kept at a temperature below the melting point of the molding material, preferably at room temperature, so that the paint layer applied to the mold does not melt or deform before it is completely cured, thereby hindering the manufacture of a good container. It is necessary to use a material that hardens with water.
このような塗料としては、特に限定されるものではなく
、各種公知のものを適宜使用することができるが、代表
例としては、室温で硬化するウレタン系塗料、たとえば
二液性エステル系ポリウレタンがある。Such a paint is not particularly limited, and various known paints can be used as appropriate, but typical examples include urethane paints that harden at room temperature, such as two-component ester polyurethane. .
ここで、上記塗料を塗付した後（通常塗料層硬化前に）
、その上にバリア層、繊維補強層およびカバーコート層
を順次形成し、得られる容器の強度を高め、容器に充填
される燃料などの漏洩を防止することが望ましい。Here, after applying the above paint (usually before the paint layer hardens)
It is desirable to sequentially form a barrier layer, a fiber reinforcing layer, and a cover coat layer thereon to increase the strength of the resulting container and prevent leakage of the fuel filled in the container.
ここで、バリア層としては、たとえばナイロン６、ナイ
ロン６６、ナイロン６１０の共重合体もしくはポリ塩化
ビニリデンなどがあり、繊維補強層としては各種繊維、
たとえばナイロン、ポリエステル繊維、アラミド繊維な
ど公知の繊維製織布や不織布、場合によっては編物など
があり、カバーコート層としては、燃料側塗料と同じ塗
料を挙げることができる。Here, the barrier layer includes, for example, a copolymer of nylon 6, nylon 66, nylon 610, or polyvinylidene chloride, and the fiber reinforcement layer includes various fibers,
For example, there are known fiber woven fabrics or non-woven fabrics such as nylon, polyester fibers, aramid fibers, or in some cases knitted fabrics, and the cover coat layer may be the same paint as the fuel side paint.
かくして該塗料層を完全に硬化させた後、そのまま全体
を成形モールドを構成するモールド成形材料の融点以上
温度に加熱し、該モールド成形材料を溶融、液状化し、
容器に形成されている開口部から流出、除去して容器を
得る。After the paint layer is completely cured in this way, the whole is heated to a temperature equal to or higher than the melting point of the molding material constituting the mold to melt and liquefy the molding material,
It flows out from an opening formed in the container and is removed to obtain a container.
また所望により、容器内は温水などの洗浄剤により洗浄
することができる。Further, if desired, the inside of the container can be cleaned with a cleaning agent such as warm water.
第３図は本発明により得られた容器（燃料用タンク）の
１例を示す斜視図である。FIG. 3 is a perspective view showing an example of a container (fuel tank) obtained by the present invention.
以下、実施例により本発明を具体的に説明する。 Hereinafter, the present invention will be specifically explained with reference to Examples.
実施例１
融点が約８０℃のＰＥＧ （三洋化成工業■製ＰＥＧ
２００００）を加熱溶融し、所定の型に流し込んだ後室
温に冷却し、型を離型除去して、燃料用タンクの成形モ
ールドを作成した。Example 1 PEG with a melting point of about 80°C (PEG manufactured by Sanyo Chemical Industries, Ltd.)
20000) was heated and melted, poured into a predetermined mold, cooled to room temperature, and the mold was released and removed to create a mold for a fuel tank.
得られたＰＥＧからなる成形モールドに二液性エステル
系ポリウレタンをスプレーし、燃料用タンクの内層を形
成し、引き続いて、その上にポリ塩化ビニリデンからな
るバリア層、ナイロン織布からなる補強層、および二液
性エステル系ポリウレタンのカバーコート７１を順次形
成した。室温で約１週間放置し、前記ウレタン層の硬化
を完了させた後、約８０℃に加熱して、成形モールドの
ＰＥＧを溶融し、容器の開口部から溶融ＰＥＧを流出さ
せて取り出し、さらに容器内を４０〜５０℃の温水で洗
浄し、内部に残存するＰＥＧを完全に除去し、製品の容
器を得た。Two-component ester-based polyurethane is sprayed onto the resulting mold made of PEG to form the inner layer of the fuel tank, and then a barrier layer made of polyvinylidene chloride, a reinforcing layer made of nylon woven fabric, Then, a two-component ester polyurethane cover coat 71 was sequentially formed. After leaving it at room temperature for about a week to complete curing of the urethane layer, it is heated to about 80°C to melt the PEG in the mold, and the molten PEG flows out from the opening of the container and is taken out. The inside was washed with warm water at 40 to 50°C to completely remove the PEG remaining inside, and a product container was obtained.
本発明方法において、成形モールドを形成する材料とし
て、たとえば前述したＰＥＧやワックス類などの離型性
を有し、耐薬品性、耐溶剤性に優れたものを使用すると
きは、容器を形成する塗膜材料として、トルエン、メチ
ルエチルケトン等のｆ機溶剤に溶解した各種の塗料をそ
のまま該成形モールドにスプレー等により塗付すること
ができるし、その優れた離型性により、前記成形モール
ドの製造並びに容器の成形時の離型処理を省略できるの
で作業性、生産性が向上する。In the method of the present invention, when using a material for forming the mold, such as the above-mentioned PEG or wax, which has mold releasability and has excellent chemical and solvent resistance, the container is formed. As a coating film material, various paints dissolved in organic solvents such as toluene and methyl ethyl ketone can be directly applied to the mold by spraying, etc., and its excellent mold releasability makes it suitable for manufacturing the mold and Workability and productivity are improved because mold release treatment during container molding can be omitted.
第１図および第２図はそれぞれ、本発明および従来の容
器の製造方法を説明するための断面図、第３図は本発明
方法により得られた容器の１例を示す斜視図である。
１・・・成形モールド、２・・・空洞部、３・・・塗料
層、５・・・補強層。
代理人 弁理士 小 川 信 −FIGS. 1 and 2 are cross-sectional views for explaining the present invention and the conventional container manufacturing method, respectively, and FIG. 3 is a perspective view showing an example of a container obtained by the present invention method. DESCRIPTION OF SYMBOLS 1... Molding mold, 2... Cavity part, 3... Paint layer, 5... Reinforcement layer. Agent Patent Attorney Nobuo Ogawa −
Claims (3)
からなる容器の成形モールドに該合成重合体の融点以下
の温度で硬化する塗料を塗付した後、前記塗料層を硬化
せしめ、次いで前記合成重合体の融点以上の温度に加熱
して成形モールドを融解し、成形された容器内部から除
去することを特徴とする容器の製造方法。(1) After applying a paint that hardens at a temperature below the melting point of the synthetic polymer to a mold for a container made of a high molecular weight molding material having a melting point of about 50 to 80°C, the paint layer is cured, and then A method for manufacturing a container, which comprises heating the synthetic polymer to a temperature higher than the melting point of the synthetic polymer to melt the mold and removing it from the inside of the molded container.
ており、前記塗料が室温硬化型塗料である特許請求の範
囲第１項に記載の容器の製造方法。(2) The method for manufacturing a container according to claim 1, wherein the high molecular weight molding material has mold releasability and chemical resistance, and the paint is a room temperature curable paint.
バリア層、繊維補強層およびカバーコート層を順次形成
することを特徴とする特許請求の範囲第１項または第２
項に記載の容器の製造方法。(3) After applying a paint to the mold, a barrier layer, a fiber reinforcing layer, and a cover coat layer are sequentially formed thereon.
Method for manufacturing the container described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62318925A JPH01160619A (en) | 1987-12-18 | 1987-12-18 | Method for manufacturing vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62318925A JPH01160619A (en) | 1987-12-18 | 1987-12-18 | Method for manufacturing vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01160619A true JPH01160619A (en) | 1989-06-23 |
Family
ID=18104511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62318925A Pending JPH01160619A (en) | 1987-12-18 | 1987-12-18 | Method for manufacturing vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01160619A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252273A (en) * | 1990-05-30 | 1993-10-12 | Hitachi, Ltd. | Slip casting method |
| JPH09323365A (en) * | 1996-06-06 | 1997-12-16 | Toyota Autom Loom Works Ltd | Gas fuel tank and its molding method |
-
1987
- 1987-12-18 JP JP62318925A patent/JPH01160619A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252273A (en) * | 1990-05-30 | 1993-10-12 | Hitachi, Ltd. | Slip casting method |
| JPH09323365A (en) * | 1996-06-06 | 1997-12-16 | Toyota Autom Loom Works Ltd | Gas fuel tank and its molding method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BRPI0616918A2 (en) | method for producing a fiber reinforced porous member, use of a porous member, fiber reinforced composite, and wind turbine blade | |
| US3289253A (en) | Molds | |
| JPH01160619A (en) | Method for manufacturing vessel | |
| CA2145967A1 (en) | Casting method using core made of synthetic resin, core made of synthetic resin, and cast product | |
| US4318683A (en) | Apparatus for molding indicia in roto-molded plastic containers | |
| US3391038A (en) | Method of making internally braced structural wall panels | |
| US4069000A (en) | Mold for shaping and curing reinforced plastic material | |
| JPS5949931A (en) | Forming process for hollow vessel made of frp | |
| US3032842A (en) | Method of making a fusible metallic core with woven fiber sleeve | |
| JPS63290715A (en) | Manufacture of synthetic resin hollow molded product | |
| US3699198A (en) | Method of making shaped articles | |
| JPH11138647A (en) | Manufacture of hollow construction | |
| JPH04294132A (en) | Manufacture of hollow product of fiber reinforced thermoplastic plastic | |
| KR20000053798A (en) | Method of coating a pole and the pole maked the same method | |
| JPH01184124A (en) | Preparation of fiber reinforced resin hollow body | |
| JPS6344537B2 (en) | ||
| JPH03272832A (en) | Manufacture of hollow body of fiber reinforced thermoplastic resin | |
| JP2000061959A (en) | Method for forming hollow molded product and core | |
| JP2525744B2 (en) | Composite resin molded product, its manufacturing apparatus, and its use | |
| US4115175A (en) | Method for manufacturing synthetic resin packed product assembly | |
| JP3624956B2 (en) | Method for producing rigid polyurethane foam molded product | |
| JP2609209B2 (en) | Mold manufacturing method | |
| JPH07195147A (en) | Molding method using special core for molding | |
| JPH0375251B2 (en) | ||
| JPH0415731B2 (en) |