JP2013180557A - Split mold for molding and molding process - Google Patents
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- JP2013180557A JP2013180557A JP2012047932A JP2012047932A JP2013180557A JP 2013180557 A JP2013180557 A JP 2013180557A JP 2012047932 A JP2012047932 A JP 2012047932A JP 2012047932 A JP2012047932 A JP 2012047932A JP 2013180557 A JP2013180557 A JP 2013180557A
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- 238000000465 moulding Methods 0.000 title abstract description 7
- 238000000034 method Methods 0.000 title abstract description 3
- 238000000071 blow moulding Methods 0.000 claims abstract description 50
- 229920005992 thermoplastic resin Polymers 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 2
- -1 polypropylene Polymers 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 229920010524 Syndiotactic polystyrene Polymers 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920001893 acrylonitrile styrene Polymers 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
本発明は、熱可塑性樹脂のブロー成形用分割金型と成形品のブロー成形方法に関する。 The present invention relates to a split mold for blow molding of a thermoplastic resin and a blow molding method of a molded product.
熱可塑性樹脂のブロー成形用分割金型に関する従来技術としては特許文献１に開示されているようなものがある。
ところで、ブロー成形の常としてブロー成形機への取付け状態における成形品の上下のバリは避けられないが、左右のバリを発生させないことは理論的には可能であった。
As a prior art relating to a split mold for blow molding of a thermoplastic resin, there is one disclosed in Patent Document 1.
By the way, as usual in blow molding, the upper and lower burrs of the molded product in the state of being attached to the blow molding machine are unavoidable, but it is theoretically possible not to generate the left and right burrs.
しかし、ブロー成形用のパリソンは寸法的に不安定であるのが常であるから、
特許文献１に開示されているような方法ではブロー成形機への取付け状態における左右に位置する部分のバリを完全に廃止することは、成形品の形状によっては非常に困難な場合もあった。
However, since parisons for blow molding are usually dimensionally unstable,
In the method disclosed in Patent Document 1, it may be very difficult to completely eliminate burrs in the left and right portions in the state of attachment to the blow molding machine depending on the shape of the molded product.
以下、図によってより詳しく説明する。
図１、図２は従来の自動車用デッキボードのブロー成形用分割金型２，２’の型締め時の、ブロー成形機への取付け状態における水平断面を示す断面図である。
１はパリソン、３はピンチオフ部である。
This will be described in more detail with reference to the drawings.
FIG. 1 and FIG. 2 are cross-sectional views showing a horizontal cross section in a state of being attached to a blow molding machine at the time of mold clamping of blow molding split molds 2 and 2 ′ of a conventional automobile deck board.
1 is a parison and 3 is a pinch-off part.
図１は、成形時の左右に位置する部分のバリを発生させないよう、安全を見て小さめの該パリソン１を適用して型締めをした直後の、該分割金型２，２’の水平断面図である。 FIG. 1 shows a horizontal cross section of the divided molds 2 and 2 ′ immediately after clamping by applying the small parison 1 for safety so as not to generate burrs in the left and right parts during molding. FIG.
この状態で該パリソン１の内部に圧縮空気を吹込むと、該パリソン１の内、該ピンチオフ部３に近い部分は膨張によって大きく伸ばされるため非常な薄肉となり、平たく言えばペラペラとなって商品価値を大きく減じるどころか、場合によっては膨らむ途中で破れ、成形そのものができないこともあった。 If compressed air is blown into the inside of the parison 1 in this state, the portion of the parison 1 that is close to the pinch-off portion 3 is greatly stretched due to expansion, resulting in a very thin wall. On the other hand, sometimes it was broken in the middle of swelling, and the molding itself could not be performed.
また、図２は上記のような該パリソン１の薄肉化を避けるため、大きめの該パリソン１を適用して型締め、吹込みをした場合の、該分割金型２，２’の水平断面図であり、該パリソン１が該ピンチオフ部３の外にはみだして、バリ５，５が発生してしまうことを表している。 FIG. 2 is a horizontal sectional view of the divided molds 2 and 2 ′ when the large parison 1 is applied and clamped and blown in order to avoid the thinning of the parison 1 as described above. This indicates that the parison 1 protrudes outside the pinch-off portion 3 and burrs 5 and 5 are generated.
解決しようとする課題は、
ブロー成形機への取付け状態における左右に位置する部分のバリを発生させないよう、安全を見て小さめのパリソンを適用してパリソンの内部に圧縮空気を吹込むと、パリソンのピンチオフ部に近い部分が大きく伸ばされるため非常な薄肉となり、平たく言えばペラペラとなって商品価値を大きく減じるどころか、場合によっては膨らむ途中で破れ、成形そのものができないことである。
The problem to be solved is
If you apply a small parison and blow compressed air into the parison so that it does not generate burrs on the left and right sides when attached to the blow molding machine, the part close to the pinch-off part of the parison Since it is stretched greatly, it becomes very thin. In other words, the product value is not reduced greatly, but in some cases, it is torn during expansion and cannot be molded.
また、上記のようなパリソンの薄肉化を避けるため、大きめのパリソンを適用して型締めをすると、パリソンがピンチオフ部の外にはみだして、バリが発生してしまうという点である。
本発明は上記の点を解決するためになされた。
In addition, in order to avoid the thinning of the parison as described above, when a large parison is applied and the mold is clamped, the parison protrudes outside the pinch-off portion, and burrs are generated.
The present invention has been made to solve the above-described points.
上記目的を果たすため本発明は、熱可塑性樹脂のブロー成形用分割金型であって、
分割金型のパーティングラインの内、ブロー成形機への取付け状態における左右に位置する部分を含んで構成されるスライド駒を有することを最も主要な特徴とする。
To achieve the above object, the present invention is a split mold for thermoplastic resin blow molding,
The main feature is that it has a slide piece configured to include left and right portions of the parting line of the divided mold in a state of being attached to the blow molding machine.
また、分割金型のパーティングラインの内、ブロー成形機への取付け状態における左右に位置する部分を含んで構成されるスライド駒を有するブロー成形用分割金型を、型開き時に対向する２組のスライド駒を互いに突出させて突合わせた状態とし、その後２組のスライド駒の内側にパリソンを垂下させ、次いで２組のスライド駒の突合わせを維持しながら型締めし、パリソン内部に圧縮空気を吹込んで所望の形状を賦形することを第２の主要な特徴とする。 Further, two sets of split molds having a slide piece including left and right portions of the parting line of the split mold that are attached to the blow molding machine are opposed to each other when the mold is opened. The slide pieces are protruded from each other and brought into contact with each other, and then the parison is suspended inside the two sets of slide pieces, and then the mold is clamped while maintaining the contact of the two sets of slide pieces, and compressed air is blown into the parison. Therefore, the second main feature is to form a desired shape.
本発明によれば、ブロー成形機への取付け状態における成形品の左右のバリを発生させることなく、尚且つ極端な薄肉になることなくブロー成形品を得ることができるという利点がある。 According to the present invention, there is an advantage that a blow-molded product can be obtained without generating left and right burrs of the molded product in an attached state to the blow molding machine and without being extremely thin.
ブロー成形機への取付け状態における成形品の左右のバリを発生させることなく、尚且つ極端な薄肉になることなくブロー成形品を得るという目的を、
分割金型のパーティングラインの内、ブロー成形機への取付け状態における左右に位置する部分を含んで構成されるスライド駒を有するブロー成形用分割金型を、型開き時に対向する２組のスライド駒を互いに突出させて突合わせた状態とし、その後２組のスライド駒の内側にパリソンを垂下させ、次いで２組のスライド駒の突合わせを維持しながら型締めし、パリソン内部に圧縮空気を吹込んで所望の形状を賦形することによって、経済性を損なわずに実現した。
The purpose of obtaining a blow-molded product without causing left and right burrs of the molded product in an attached state to the blow molding machine, and without becoming extremely thin,
Two sets of slides that face each other when the mold is opened with a split mold having slide pieces including left and right portions of the parting line of the split mold in the state of being attached to the blow molding machine The pieces are protruded from each other and brought into contact with each other, then the parison is suspended inside the two sets of slide pieces, and then the mold is clamped while keeping the two pieces of slide pieces in contact, and compressed air is blown into the inside of the parison. By shaping the shape, it was realized without impairing the economy.
本発明の構成を発明の実施の形態に基づいて説明すると次の通りである。尚、従来例と同一の符号は同一の部材を表す。 The configuration of the present invention will be described based on the embodiments of the invention as follows. In addition, the same code | symbol as a prior art example represents the same member.
図３、図４は、本発明の１実施例を示す自動車用デッキボードのブロー成形用分割金型２，２’の内、片方の分割金型２のブロー成形機への取付け状態における斜視図である。
１０及び１１はスライド駒、２０はパーティングラインである。
FIGS. 3 and 4 are perspective views of one of the divided molds 2 and 2 'for blow molding of an automobile deck board according to an embodiment of the present invention, in a state where one of the divided molds 2 is attached to a blow molding machine. It is.
10 and 11 are slide pieces, and 20 is a parting line.
図３は該スライド駒１０，１１が分割金型２内に引っ込められた状態を示している。 FIG. 3 shows a state in which the slide pieces 10 and 11 are retracted into the split mold 2.
図４は、該スライド駒１０，１１を図中の矢印の方向に突出させた状態を示している。 FIG. 4 shows a state in which the slide pieces 10 and 11 are projected in the direction of the arrow in the figure.
図５は、本発明の１実施例を示す自動車用デッキボードのブロー成形用分割金型２，２’の型締め前の、ブロー成形機への取付け状態における水平断面を示す断面図である。 FIG. 5 is a cross-sectional view showing a horizontal cross section of the automobile deck board according to one embodiment of the present invention in a state where it is attached to the blow molding machine before clamping the blow mold split molds 2 and 2 '.
スライド駒１０，１０’，１１，１１’は該分割金型２，２’の母型（おもがた）内でエアシリンダーや油圧シリンダー等のスライド機構（図示せず）により摺動自在に摺設されており、その先端には該分割金型２，２’のパーティングライン２０の内、ブロー成形機への取付け状態における左右に位置する部分を含むように構成されている。
尚、型締め前には対向する２組の該スライド駒１０，１０’及び１１，１１’を互いに突出させて突合わせた状態にしてある。
The slide pieces 10, 10 ', 11, 11' are slidable by a slide mechanism (not shown) such as an air cylinder or a hydraulic cylinder in the mother mold (main body) of the divided molds 2, 2 '. The tip is configured to include a portion located on the left and right of the parting line 20 of the divided molds 2 and 2 'in the state of being attached to the blow molding machine.
Before the mold clamping, the two opposing pairs of slide pieces 10, 10 ′ and 11, 11 ′ are protruded from each other.
次に本発明の作用を説明する。該分割金型２，２’内に半溶融状態にあるポリプロピレン等の熱可塑性樹脂のパリソン１を垂下させ該分割金型を型締めする。
尚、該パリソン１の大きさは該パリソン１の薄肉化を避け得るよう図５に示すように必要十分に大きく設定されている。
Next, the operation of the present invention will be described. A parison 1 of a thermoplastic resin such as polypropylene in a semi-molten state is suspended in the split molds 2 and 2 ', and the split molds are clamped.
The size of the parison 1 is set to be sufficiently large as shown in FIG. 5 so as to avoid the thinning of the parison 1.
図６は、本発明の１実施例を示す自動車用デッキボードのブロー成形用分割金型２，２’の型締め直後の、ブロー成形機への取付け状態における水平断面を示す断面図である。 FIG. 6 is a cross-sectional view showing a horizontal cross section of the automobile deck board according to one embodiment of the present invention in a state where it is attached to the blow molding machine immediately after the molds 2 and 2 'for blow molding have been clamped.
この時、該スライド駒１０，１０’及び１１，１１’は互いに突合わされた状態を維持しながら型締め力により母型（おもがた）内に引っ込む。 At this time, the slide pieces 10, 10 ′ and 11, 11 ′ are retracted into the mother die (main body) by the clamping force while maintaining the state of being abutted against each other.
この場合、該パリソン１の大きさが該パリソン１の薄肉化を避け得るよう十分に大きく設定されているにも拘らず、該パリソン１の該ピンチオフ部３外へのはみだしが、互いに突合わされた該スライド駒１０，１０’及び１１，１１により阻止されるので、従来例のような左右のバリは図６に示すようにまったく発生しない。 In this case, although the size of the parison 1 is set to be large enough to avoid the thinning of the parison 1, the protrusions of the parison 1 to the outside of the pinch-off portion 3 are abutted against each other. Since it is blocked by the slide pieces 10, 10 'and 11, 11, no left and right burrs as in the prior art occur as shown in FIG.
尚、該パリソン１に適用される熱可塑性樹脂としてはポリプロピレンに限らず、ポリエチレンや他のポリオレフィン系樹脂、ポリエチレンテレフタレートやポリブチレンテレフタレート、ポリエチレンナフタレート等のポリエステル系樹脂、ポリアミド系樹脂、ポリアセタール系樹脂、シンジオタクチックポリスチレン、ポリスチレン、ゴム改質ポリスチレン、アクリロニトリル−スチレン共重合体、アクリロニトリル−ブタジエン−スチレン共重合体、変性ポリフェニレンオキサイド、ポリフェニレンサルファイド、ポリカーボネート等、ブロー成形が可能な樹脂であれば何でも良い。また、該熱可塑性樹脂にガラス繊維、炭素繊維、ボロン繊維、硫酸カルシウム粉末、炭酸カルシウム粉末等を混錬させた複合材であってもよい。 The thermoplastic resin applied to the parison 1 is not limited to polypropylene, but polyethylene, other polyolefin resins, polyester resins such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate, polyamide resins, and polyacetal resins. Syndiotactic polystyrene, polystyrene, rubber-modified polystyrene, acrylonitrile-styrene copolymer, acrylonitrile-butadiene-styrene copolymer, modified polyphenylene oxide, polyphenylene sulfide, polycarbonate, etc. . Further, a composite material obtained by kneading glass fiber, carbon fiber, boron fiber, calcium sulfate powder, calcium carbonate powder and the like into the thermoplastic resin may be used.
その後該パリソン１内に圧縮空気を吹き込んでブローアップし、次いで、該スライド駒１０，１０’及び１１，１１’を母型（おもがた）内に引っ込めた状態のまま型開きして自動車用デッキボードを離型する。
この状態を図７に示す。
Thereafter, compressed air is blown into the parison 1 and blown up, and then the slide pieces 10, 10 ′ and 11, 11 ′ are opened in a state where they are retracted into the mother mold (main body), and the automobile is opened. Release the deck board.
This state is shown in FIG.
図７は該分割金型２，２’の型開き後の、該分割金型２，２’及び成形品３０の、ブロー成形機への取付け状態における水平断面を示す断面図である。
図７に示すように、該スライド駒１０，１０’及び１１，１１’の寄与により該成形品３０にバリも発生せず、極端な薄肉にもならない自動車用デッキボードの成形を安定して継続することができる。
FIG. 7 is a cross-sectional view showing a horizontal section of the split molds 2 and 2 ′ and the molded product 30 in a state where they are attached to a blow molding machine after the molds 2 and 2 ′ are opened.
As shown in FIG. 7, the molding of the automobile deck board that does not cause burrs in the molded product 30 and does not become extremely thin due to the contribution of the slide pieces 10, 10 ′ and 11, 11 ′ is continued stably. can do.
尚、上記実施例ではスライド機構にエアシリンダーや油圧シリンダー等を適用した例を説明したが、スプリング等によって押圧、摺動させてもよい。 In the above embodiment, an example in which an air cylinder, a hydraulic cylinder, or the like is applied to the slide mechanism has been described. However, the slide mechanism may be pressed or slid by a spring or the like.
以上実施例に述べたように本発明によれば、
分割金型のパーティングラインの内、ブロー成形機への取付け状態における左右に位置する部分を含んで構成されるスライド駒を有するブロー成形用分割金型を、型開き時に対向する２組のスライド駒を互いに突出させて突合わせた状態とし、その後２組のスライド駒の内側にパリソンを垂下させ、次いで２組のスライド駒の突合わせを維持しながら型締めし、パリソン内部に圧縮空気を吹込んで所望の形状を賦形するとしたため、
ブロー成形機への取付け状態における成形品の左右のバリを発生させることなく、尚且つ極端な薄肉になることなくブロー成形品を安定して得ることができるという効果がある。
As described in the above embodiments, according to the present invention,
Two sets of slides that face each other when the mold is opened with a split mold having slide pieces including left and right portions of the parting line of the split mold in the state of being attached to the blow molding machine The pieces are protruded from each other and brought into contact with each other, then the parison is suspended inside the two sets of slide pieces, and then the mold is clamped while keeping the two pieces of slide pieces in contact, and compressed air is blown into the inside of the parison. Because the shape of
There is an effect that the blow molded product can be stably obtained without generating left and right burrs of the molded product in the state of being attached to the blow molding machine and without being extremely thin.
尚、図１、図２、図５〜図７の説明における「ブロー成形機への取付け状態における水平断面」とは、図３におけるＡ−Ａ断面を意味する。 1, 2, and 5 to 7, the “horizontal section in the state of being attached to the blow molding machine” means the AA section in FIG. 3.
本発明は、自動車用デッキボード用金型に限らず、ブロー成形用分割金型のパーティングラインの内、ブロー成形機への取付け状態における左右に位置する部分を含んで構成されるスライド駒を設定することが可能なブロー成形品の分割金型ならば何にでも利用可能である。 The present invention is not limited to a mold for an automobile deck board, but includes a slide piece configured to include left and right portions of a parting line of a blow mold split mold in an attached state to a blow molding machine. The present invention can be used for any blow mold product divided mold that can be set.
１ パリソン
２，２’ 分割金型
３ ピンチオフ部
５ バリ
１０，１０’ スライド駒
１１，１１’ スライド駒
２０ パーティングライン
３０ 成形品
DESCRIPTION OF SYMBOLS 1 Parison 2,2 'Split mold 3 Pinch-off part 5 Burr 10,10' Slide piece 11,11 'Slide piece 20 Parting line 30 Molded product
Claims (2)
分割金型のパーティングラインの内、ブロー成形機への取付け状態における左右に位置する部分を含んで構成されるスライド駒を有することを特徴とするブロー成形用分割金型 A split mold for blow molding of thermoplastic resin,
1. A split mold for blow molding comprising a slide piece configured to include left and right portions of the parting line of the split mold in a state of being attached to a blow molding machine
分割金型のパーティングラインの内、ブロー成形機への取付け状態における左右に位置する部分を含んで構成されるスライド駒を有するブロー成形用分割金型を、型開き時に対向する２組のスライド駒を互いに突出させて突合わせた状態とし、その後２組のスライド駒の内側にパリソンを垂下させ、次いで２組のスライド駒の突合わせを維持しながら型締めし、パリソン内部に圧縮空気を吹込んで所望の形状を賦形することを特徴とする成形品のブロー成形方法 A blow molding method for a molded article of a thermoplastic resin,
Two sets of slides that face each other when the mold is opened with a split mold having slide pieces including left and right portions of the parting line of the split mold in the state of being attached to the blow molding machine The pieces are protruded from each other and brought into contact with each other, then the parison is suspended inside the two sets of slide pieces, and then the mold is clamped while keeping the two pieces of slide pieces in contact, and compressed air is blown into the inside of the parison. Blow molding method of molded product characterized by shaping the shape of
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| Application Number | Priority Date | Filing Date | Title |
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| JP2012047932A JP2013180557A (en) | 2012-03-05 | 2012-03-05 | Split mold for molding and molding process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012047932A JP2013180557A (en) | 2012-03-05 | 2012-03-05 | Split mold for molding and molding process |
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| JP2013180557A true JP2013180557A (en) | 2013-09-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160064151A (en) * | 2013-09-26 | 2016-06-07 | 플라스틱 옴니엄 어드벤스드 이노베이션 앤드 리서치 | Method for producing a fuel tank from plastic material |
-
2012
- 2012-03-05 JP JP2012047932A patent/JP2013180557A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160064151A (en) * | 2013-09-26 | 2016-06-07 | 플라스틱 옴니엄 어드벤스드 이노베이션 앤드 리서치 | Method for producing a fuel tank from plastic material |
| US20160221245A1 (en) * | 2013-09-26 | 2016-08-04 | Plastic Omnium Advanced Innovation And Research | Method for producing a fuel tank from plastic material |
| JP2016531762A (en) * | 2013-09-26 | 2016-10-13 | プラスチック・オムニウム・アドヴァンスド・イノベーション・アンド・リサーチ | How to produce fuel tanks from plastic materials |
| KR102229494B1 (en) | 2013-09-26 | 2021-03-18 | 플라스틱 옴니엄 어드벤스드 이노베이션 앤드 리서치 | Method for producing a fuel tank from plastic material |
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