JPH0270424A - Integrally molding apparatus of bend and mold employed therein - Google Patents
Integrally molding apparatus of bend and mold employed thereinInfo
- Publication number
- JPH0270424A JPH0270424A JP63221375A JP22137588A JPH0270424A JP H0270424 A JPH0270424 A JP H0270424A JP 63221375 A JP63221375 A JP 63221375A JP 22137588 A JP22137588 A JP 22137588A JP H0270424 A JPH0270424 A JP H0270424A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- cavity
- split
- split molds
- styrobeads
- 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.)
- Granted
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000012778 molding material Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 229920005989 resin Polymers 0.000 abstract description 10
- 239000011347 resin Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 8
- 238000005266 casting Methods 0.000 abstract description 4
- 239000012809 cooling fluid Substances 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 239000011324 bead Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は曲管成形装置に関し、特に曲管鋳造用模型を成
形する装置並びにその金型に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bent pipe forming apparatus, and more particularly to an apparatus for forming a model for casting a bent pipe, and a mold thereof.
［従来の技術］
従来から、細く長い孔や複雑な中空部分をもつ鋳造品を
製造するときにはソリッドモーノルド法が利用されてい
る。このソリッドモールド法に用いられる鋳型は鋳造し
ようとする製品と同じ形状の模型を樹脂等でつくり、そ
のまわりに耐火物の被覆層を形成させた侵、前記樹脂模
型を溶かし出すことによって形成させているものである
。このような鋳型を用いて製造される鋳造品の一つに水
道管のエルボがある。このエルボを上述のモールド法に
より製造する場合は、第６〜７図に示す如く鋳造しよう
とする製品と同じ形状の模型Ｐをポリスチレン樹脂等の
模型材料から形成している。第７図中、符号１がエルボ
の主体部分を構成する曲管部、２．３は前記曲管部の両
端に連設された直管部、４は一方の直管部３に一体に設
けられたフランジ、５は前記直管部に設けられた受口、
６は他方の直管部に設けられた差し口である。[Prior Art] Conventionally, the solid Molnold method has been used to manufacture cast products having long thin holes or complicated hollow parts. The mold used in this solid molding method is made by making a model of the same shape as the product to be cast out of resin, etc., forming a coating layer of refractory material around it, and then melting the resin model. It is something that exists. One of the cast products manufactured using such a mold is the elbow of a water pipe. When this elbow is manufactured by the above-mentioned molding method, a model P having the same shape as the product to be cast is formed from a model material such as polystyrene resin, as shown in FIGS. 6 and 7. In FIG. 7, reference numeral 1 denotes a bent pipe part constituting the main body of the elbow, 2.3 a straight pipe part connected to both ends of the bent pipe part, and 4 provided integrally with one straight pipe part 3. 5 is a socket provided in the straight pipe portion;
6 is a spout provided on the other straight pipe section.
ところで第６〜７図に示したような樹脂模型Ｐは、形状
が特異であることから従来の方法では、一体の成形品と
して成形することができない。そこで数個の分割成形さ
れた構成部品（図示模型は４部品より形成されている）
を−点鎖線で示す突合せ個所でテープ貼りすることによ
り組み立て、鋳造しようとする製品と同じ形状の模型を
得ているが、このような従来方法には後記のような問題
点があって、賞月に値するものといえなかった。By the way, since the resin model P shown in FIGS. 6 and 7 has a unique shape, it cannot be molded as an integral molded product using conventional methods. Therefore, several component parts were molded separately (the illustrated model is made up of four parts).
-A model with the same shape as the product to be assembled and cast is obtained by pasting tape at the butt points shown by the dotted chain lines, but this conventional method has the problems described below, and has not been awarded an award. It wasn't worth the moon.
［発明が解決しようとする問題点］
すなわち、従来の樹脂模型はその形状が特異であるため
、一体の成形品として形成させることができず、数個の
成形品を貼合せて組み立てているため、その組立作業に
多くの手間が掛るという問題点があり、その上、貼合せ
に際して突合せ個所がズレ易いという欠点があった。ま
た、水道管のエルボはその種類が多く、特に小形管にな
ると貼合せ作業が行ないづらく、寸法ならび形状精度の
高いものが得られにくいという難点もあった。[Problems to be solved by the invention] In other words, because the conventional resin model has a unique shape, it cannot be formed as an integral molded product, but is assembled by pasting together several molded products. However, there is a problem in that the assembly work requires a lot of time and effort, and in addition, there is a drawback that the butted parts are easily misaligned during bonding. In addition, there are many types of elbows for water pipes, and it is difficult to attach them, especially when it comes to small pipes, and it is difficult to obtain elbows with high dimensional and shape accuracy.
本発明は、かかる問題点を解決することができる樹脂模
型の一体成形装置を提供することを目的とする。すなわ
ち本発明は、前記エルボを鋳造するための樹脂模型を、
一体成形法により製作しつる装置を提案するものである
。An object of the present invention is to provide an apparatus for integrally molding a resin model that can solve such problems. That is, the present invention provides a resin model for casting the elbow,
This paper proposes a hanging device manufactured using an integral molding method.
［課題を解決するための手段］
上記目的を達成するために、本発明の曲管成形装置は、
曲管形成用キャビティを備え且つ該キャビティ内に成形
材料を充填するための手段並びに該キャピテイを選択的
に加熱又は冷却するための手段を備えた一対の割型と、
その割型の上方より廻動アームを介して前記キャビティ
に挿入配置されるとともに前記割型の上部突当部に突当
て固定できる円筒状の中型と、前記割型の型締装置とを
組合せなるものである。[Means for Solving the Problems] In order to achieve the above object, the bent pipe forming apparatus of the present invention includes a bent pipe forming cavity, a means for filling the molding material into the cavity, and a means for filling the cavity with the molding material. a pair of split molds with means for selectively heating or cooling;
A cylindrical medium mold that is inserted into the cavity from above the split mold via a rotating arm and can be fixed against the upper abutting part of the split mold, and a mold clamping device for the split mold are combined. It is something.
また、前記中型の取付端周面には割型のキャビティに向
って進退可能のスライド型を設け、更にまた前記割型の
後方にはキャビティに挿入される中子と、中子引扱装置
を設けることが好ましい。Further, a sliding mold that can move forward and backward toward the cavity of the split mold is provided on the circumferential surface of the mounting end of the medium mold, and furthermore, a core to be inserted into the cavity and a core handling device are installed behind the split mold. It is preferable to provide one.
［実施例］
次に本発明の構成を図示の実施例に基づいて具体的に説
明する。第１図は本発明における金型の主要部を示した
縦断側面図、第２図は一部を省略した正面図である。本
発明による金型を用いた成形装置は、フレーム１０に左
右一対の割型１１ａ、 １１ｂが載置されている。そし
て一方の割型は固定型とされ、他方のそれは可動型とさ
れている。前記割型の分割面（境界面）にはエルボを形
成するためにそれぞれキャビティ１２が形成されている
。このキャビティは、それぞれ曲管形成部１２ａと、曲
管形成部の両端に配置された直管形成部１２ｂ、 １２
ｃとを備えているとともに、固定側割型１１ａのキャビ
ティの略中央部には、スチロビーズ等の模型材料充填用
の注入口１３が形成されている。該注入口は割型１１ａ
を貫通して該割型の側面に取付けられた前記材料の供給
管１４に接続されている。可動側割型１１ｂの側方には
、型締シリンダ１５がフレーム１０に固着されている。[Example] Next, the configuration of the present invention will be specifically described based on the illustrated example. FIG. 1 is a longitudinal sectional side view showing the main parts of a mold according to the present invention, and FIG. 2 is a partially omitted front view. In the molding apparatus using the mold according to the present invention, a pair of left and right split molds 11a and 11b are mounted on a frame 10. One split mold is fixed, and the other is movable. A cavity 12 is formed in each dividing surface (boundary surface) of the split mold to form an elbow. This cavity includes a bent pipe forming part 12a and straight pipe forming parts 12b, 12 disposed at both ends of the bent pipe forming part.
In addition, an injection port 13 for filling a model material such as Styro beads is formed approximately in the center of the cavity of the fixed side split mold 11a. The injection port is in the split mold 11a.
The material supply pipe 14 is connected to the material supply pipe 14 which is attached to the side surface of the split mold. A mold clamping cylinder 15 is fixed to the frame 10 on the side of the movable split mold 11b.
この実施例では、フレーム１０と固定側割型１１ａ
との間に水平で、上下一対のガイドシャフト１６がが横
架されている。このガイドシャフトを案内部材として前
記型締シリンダのロッドを作動させることにより、前記
一対の割型を開閉させることができるようになっている
。In this embodiment, the frame 10 and the fixed side split mold 11a
A pair of upper and lower guide shafts 16 are horizontally suspended between the two. By operating the rod of the clamping cylinder using this guide shaft as a guide member, the pair of split molds can be opened and closed.
符号１７で示すものは、前記割型の上部隅角部を面取り
して形成したエルボ端部のフランジ形成面である。この
フランジ形成面１７は後記する中型の可動天盤１８の突
当て面となる。可動天盤１８は、廻動アーム１９にピン
ジヨイントを介して片持式に支承されており、またこの
廻動アームは前記割型の上部中央に設けた回転軸２０を
中心として上下方向に廻動するようになっている。２１
は前記アームを廻動させるための作動用シリンダであり
、フレーム１０に固定されている。Reference numeral 17 indicates a flange forming surface of the elbow end formed by chamfering the upper corner of the split mold. This flange forming surface 17 becomes a contact surface of a medium-sized movable top plate 18, which will be described later. The movable top plate 18 is supported in a cantilever manner by a rotating arm 19 via a pin joint, and this rotating arm rotates in the vertical direction about a rotating shaft 20 provided at the center of the upper part of the split mold. It is supposed to be done. 21
is an operating cylinder for rotating the arm, and is fixed to the frame 10.
符号２２は前記キャビティの内部に回転挿入することが
できるように構成された中型である。この中型は前記キ
ャピテイの曲管形成部が有する曲率半径と同じ曲率半径
の中心軸をもつ中空円筒体より形成されていると共にそ
の一端に直管部が延設されこの直管部が可動天盤１８の
下面中央に連結吊持されている。このように構成されて
いる中型２２及びこれを吊持する可動天盤１８は、前記
ｌｌ！動アーム１９の下向きの回動時に、型閉じされた
割型のキャビティ中心に中型２２が挿入配置されるとと
もに、天Ｉ！Ａ１８の下面と前記フランジ形成面１７と
が突き当てられるように設定されている。Reference numeral 22 denotes a medium-sized member configured to be rotatably inserted into the cavity. This medium-sized body is formed of a hollow cylinder having a central axis with the same radius of curvature as the radius of curvature of the curved pipe forming part of the above-mentioned capacity, and a straight pipe part is extended from one end of the body. It is connected and suspended at the center of the lower surface of 18. The medium size 22 configured in this way and the movable top plate 18 that suspends it are the same as the above-mentioned ll! When the movable arm 19 rotates downward, the middle mold 22 is inserted into the center of the closed split mold cavity, and the top I! The lower surface of A18 is set so as to abut against the flange forming surface 17.
なお、前記中型の取付は端部外周には、第３図及び第５
図に示す如く可動天盤１８内より中型の直管部外面に沿
って下方に進出しうるリング状のスライド型２３が備え
られている。このスライド型は前記スライド形成面１７
と共働し、エルボ端部の受口５を形成することができる
ようになっている。In addition, when attaching the medium size, the outer periphery of the end is as shown in Figures 3 and 5.
As shown in the figure, a ring-shaped slide mold 23 is provided that can extend downward from inside the movable top plate 18 along the outer surface of the medium-sized straight pipe section. This slide mold has the slide forming surface 17
The socket 5 at the end of the elbow can be formed by working together with the socket 5 at the end of the elbow.
符号２４は前記可動天盤の上面に固着された一対の小型
シリンダであり、そのシリンダロッド端に前記スライド
型が連結されている。このスライド型は第５図に示す如
く模型成形作業の際に前記シリンダロッドを伸長させる
ことにより割型のキャビティ内に進出させ、成形後は前
記シリンダロッドを縮少させて成形製品から取り外すよ
うに運用するものである。Reference numeral 24 denotes a pair of small cylinders fixed to the upper surface of the movable top plate, and the slide mold is connected to the ends of the cylinder rods. As shown in Fig. 5, this slide mold is designed to advance into the cavity of the split mold by extending the cylinder rod during model molding work, and after molding, the cylinder rod is retracted and removed from the molded product. It is to be operated.
符号２５は、前記割型の後方に配置され、キャごティの
直管形成部１２ｄに挿入して、エルボ端部の差し口６を
形成することができる円筒状の可動中子であり、その先
端には中型２２の端部と嵌合する際に芯合せを可能とす
るテーパ部２６が形成されている。２７は前記可動中子
の後方に設けた用法装置である。この用法装置は中子を
水平に保持する可動盤２８と、該可動盤を割型１１に対
して接離させるための引抜シリンダ２９と、可動盤の進
退用ガイドシャフト３０とから構成されている。Reference numeral 25 denotes a cylindrical movable core that is placed behind the split mold and that can be inserted into the straight pipe forming portion 12d of the cavity to form the spigot 6 at the elbow end. A tapered part 26 is formed at the tip to enable alignment when fitting with the end of the medium mold 22. 27 is a usage device provided behind the movable core. This usage device is composed of a movable platen 28 that holds the core horizontally, a drawing cylinder 29 for moving the movable platen toward and away from the split mold 11, and a guide shaft 30 for advancing and retracting the movable platen. .
なお、図示省略したが本装置の金型の内部にはキャビテ
ィ１２を加熱及び冷却するための加熱流体及び冷ｍ流体
の導入用ブヤンバーが配設されている。また、中型２２
並びに可動中子２５を構成する筒体内部にも該部材の加
熱流体及び冷却流体の噴出管を配設するものであるが、
これらについては、上記チャンバーと同様に図示を省略
した。また、第４図中符号３１は、成形作業時において
、割型上部の突当て而１７に対する可動天盤１８の型締
め力を増加させるための増圧シリンダであるが、本発明
に必須のものではない。Although not shown in the drawings, a chamber bar for introducing heating fluid and cold fluid for heating and cooling the cavity 12 is provided inside the mold of this device. Also, medium size 22
Furthermore, ejection pipes for the heating fluid and cooling fluid of the member are arranged inside the cylindrical body constituting the movable core 25.
As with the above-mentioned chamber, illustration of these components is omitted. Further, reference numeral 31 in FIG. 4 is a pressure increasing cylinder for increasing the mold clamping force of the movable top plate 18 against the abutment 17 of the upper part of the split mold during the molding operation, which is essential to the present invention. isn't it.
［作 用］
次に以上のように構成されている本発明装置の作用を説
明する。本発明が目的とするエルボの樹脂模型を成形す
るためには、先ず、第４図に示す如く型閉じされた割型
１１ａと１１ｂのキャビティ１２に中型２２を回転挿入
し、可動天盤１８を割型の上面隅角部１７に突当て固定
する。またキャビティ後部の直管形成部１２ｃ 内に
可動中子２５を挿入して該中子の端部と中型２２の端部
とを連結し固定すると共に、スライド型２４を進出させ
る。こうして密閉された前記キャビティ内に材料供給管
１４よりスチロビーズ等の模型材料を充填した後、前記
チャンバー等にスチームを導入してスチロビースを加熱
彫版させ粒子相互を融着させる。このようにして原料樹
脂を成形発泡させてから、チャンバー内に冷却流体を導
入して成形製品を冷却する。なお冷却後、成形製品の取
出す場合は、上記とは逆の手順で型を開くと、型内より
製品を取出すことができる。[Function] Next, the function of the device of the present invention configured as above will be explained. In order to mold the resin model of the elbow that is the object of the present invention, first, as shown in FIG. It is fixed by abutting against the upper corner portion 17 of the split mold. Further, a movable core 25 is inserted into the straight pipe forming portion 12c at the rear of the cavity, and the end of the core and the end of the middle mold 22 are connected and fixed, and the slide mold 24 is advanced. After filling the thus sealed cavity with model material such as Styro beads through the material supply pipe 14, steam is introduced into the chamber etc. to heat engrave the Styro beads and fuse the particles together. After the raw resin is molded and foamed in this manner, a cooling fluid is introduced into the chamber to cool the molded product. To take out the molded product after cooling, open the mold in the reverse order to the above, and the product can be taken out from inside the mold.
［発明の効果］
本発明は、以上説明したように構成されているから、従
来数個の成形品を貼合せて組み立てていたエルボｖＩ造
用の＠脂模型を一体成形法によって極めて迅速に製作す
ることができる。従って従来法と異なり、特異な中空部
分をもった成形品を貼合せなどの加工を要することなく
、高い寸法精度や形状精度をもって廉価に量産すること
ができる効果がある。[Effects of the Invention] Since the present invention is configured as explained above, it is possible to extremely quickly produce an @fat model for elbow VI construction using an integral molding method, which was conventionally assembled by pasting together several molded products. can do. Therefore, unlike conventional methods, it is possible to mass-produce molded products with unique hollow portions at low cost with high dimensional and shape accuracy without requiring processing such as bonding.
第１図は本発明における金型の主要部を示した部分切欠
側面図、第２図は同じく一部省略正面図、第３図は割型
を閉じた状態を示す斜視図、第４図は型閉じ後の成形時
における金型を示す斜視図、第５図は中型とスライド型
を示す拡大断面図、第６図はエルボ鋳造用模型の平面図
、第７図は同上縦断面図である。
１・・・曲管部、２，３・・・直管部、４・・・フラン
ジ５・・・受口、６・・・差口、１０・・・フレーム、
１１ａ、 １１ｂ・・・割型、１２・・・キャビデイ、
１２ａ・・・曲管形成部、１２ｂ１２ｃ・・・直管形成
部、１３・・・注入口、１４・・・材料注入管、１５・
・・型締シリンダ、１６・・・ガイドシャフト、１７・
・・フランジ形成面、１８・・・可動天盤、１９・・・
廻動アーム、２０・・・回転軸、２１・・・作動シリン
ダ、２２・・・中型、２３・・・スライド型、２４・・
・小型シリンダ、２５・・・可動中子、２６・・・テー
パ部、２７・・・中子引抜装置、２８・・・可動盤、２
９・・・引抜シリンダ、３０・・・ガイドシャフト、３
１・・・増圧シリンダFig. 1 is a partially cutaway side view showing the main parts of the mold according to the present invention, Fig. 2 is a partially omitted front view, Fig. 3 is a perspective view showing the split mold in a closed state, and Fig. 4 is a partially cutaway side view showing the main parts of the mold according to the present invention. FIG. 5 is an enlarged sectional view showing the middle mold and slide mold, FIG. 6 is a plan view of the elbow casting model, and FIG. 7 is a longitudinal sectional view of the same as above. . DESCRIPTION OF SYMBOLS 1... Bent pipe part, 2, 3... Straight pipe part, 4... Flange 5... Socket, 6... Socket, 10... Frame,
11a, 11b... split mold, 12... cavity,
12a... Bent pipe forming part, 12b12c... Straight pipe forming part, 13... Inlet, 14... Material injection pipe, 15.
...Mold clamping cylinder, 16...Guide shaft, 17.
...Flange forming surface, 18...Movable top plate, 19...
Rotating arm, 20... Rotating shaft, 21... Operating cylinder, 22... Medium size, 23... Slide type, 24...
- Small cylinder, 25... Movable core, 26... Taper part, 27... Core extraction device, 28... Movable platen, 2
9... Pulling cylinder, 30... Guide shaft, 3
1... Pressure boosting cylinder
Claims (1)
に成形材料を充填するための手段並びに該キャビティを
選択的に加熱又は冷却するための手段を備えた一対の割
型と、その割型の上方より廻動アームを介して前記キャ
ビティに挿入配置されるとともに前記割型の上部突当部
に突当て固定できる円筒状の中型と、前記割型の型締装
置とを組合せて成る曲管の一体成形装置。 ２、中型の取付端周面に割型のキャビティに向つて進退
可能に備えられているスライド型と、前記割型の後方よ
りキャビティに挿入される中子と、中子引抜装置とを備
えた請求項１記載の成形装置。 ３、少なくとも曲管形成用キャビティを備えた一対の割
型と、割型上方に回転中心をもつて前記キャビティに挿
入配置されるとともに、前記割型の上部突当部分に突当
て固定できるようにされた中型とから成る曲管成形用金
型。[Claims] 1. A pair of split molds each having a cavity for forming a curved pipe, and also having means for filling the cavity with a molding material and means for selectively heating or cooling the cavity. a cylindrical medium mold that is inserted into the cavity from above the split mold via a rotating arm and can be fixed against an upper abutting portion of the split mold; and a mold clamping device for the split mold. An integrated molding device for bent pipes. 2. A slide mold is provided on the circumferential surface of the installation end of the medium size so as to be movable toward the cavity of the split mold, a core inserted into the cavity from the rear of the split mold, and a core extraction device. The molding apparatus according to claim 1. 3. A pair of split molds each having at least a cavity for forming a curved pipe; and a pair of split molds having a center of rotation above the split molds, inserted into the cavities, and capable of being fixed by abutting against the upper abutting portion of the split molds. A mold for forming curved pipes consisting of a medium-sized mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63221375A JP2694655B2 (en) | 1988-09-06 | 1988-09-06 | Bending tube integrated molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63221375A JP2694655B2 (en) | 1988-09-06 | 1988-09-06 | Bending tube integrated molding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0270424A true JPH0270424A (en) | 1990-03-09 |
| JP2694655B2 JP2694655B2 (en) | 1997-12-24 |
Family
ID=16765808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63221375A Expired - Lifetime JP2694655B2 (en) | 1988-09-06 | 1988-09-06 | Bending tube integrated molding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2694655B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004221544A (en) * | 2002-12-03 | 2004-08-05 | Sanyo Electric Co Ltd | Solid electrolytic capacitor |
| CN111483105A (en) * | 2020-04-23 | 2020-08-04 | 合肥荣丰包装制品有限公司 | EPS foam material forming device and process |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61220828A (en) * | 1985-03-27 | 1986-10-01 | Sumitomo Electric Ind Ltd | Manufacture of curved pipe, made of fiber reinforced plastic and having square section |
-
1988
- 1988-09-06 JP JP63221375A patent/JP2694655B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61220828A (en) * | 1985-03-27 | 1986-10-01 | Sumitomo Electric Ind Ltd | Manufacture of curved pipe, made of fiber reinforced plastic and having square section |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004221544A (en) * | 2002-12-03 | 2004-08-05 | Sanyo Electric Co Ltd | Solid electrolytic capacitor |
| CN111483105A (en) * | 2020-04-23 | 2020-08-04 | 合肥荣丰包装制品有限公司 | EPS foam material forming device and process |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2694655B2 (en) | 1997-12-24 |
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