JPS5822343B2 - Pipe noseizouhou - Google Patents
Pipe noseizouhouInfo
- Publication number
- JPS5822343B2 JPS5822343B2 JP10739574A JP10739574A JPS5822343B2 JP S5822343 B2 JPS5822343 B2 JP S5822343B2 JP 10739574 A JP10739574 A JP 10739574A JP 10739574 A JP10739574 A JP 10739574A JP S5822343 B2 JPS5822343 B2 JP S5822343B2
- Authority
- JP
- Japan
- Prior art keywords
- core material
- pipe
- thermoplastic resin
- extruder
- noseizouhou
- 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
Links
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明はリブ構造等によって補強を行なう熱可塑性樹脂
パイプの製造法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a thermoplastic resin pipe reinforced with a rib structure or the like.
従来、熱可塑性樹脂パイプは円形ダイスを用いる押出酸
形成は押出機より押出した熱可塑性樹脂シートを金属性
の芯材に該芯材を加熱しながら順次螺旋状に巻き取り、
冷却した後に芯材を除去することにより製造されていた
。Conventionally, thermoplastic resin pipes are formed by extrusion using a circular die.The thermoplastic resin sheet extruded from an extruder is wound around a metal core material in a spiral shape while heating the core material.
It was manufactured by removing the core material after cooling.
円形ダイスを用いる押出成形法においては、パイプの強
度を増すためにはパイプの肉厚を全体的に増す必要があ
るので使用樹脂量が多くなり、従ってコスト高となりパ
イプの重量も重くなるという欠点があった。In the extrusion molding method using circular dies, in order to increase the strength of the pipe, it is necessary to increase the overall wall thickness of the pipe, which increases the amount of resin used, which has the disadvantage of increasing costs and increasing the weight of the pipe. was there.
一方押出機より押出された熱可塑性樹脂のシートを金属
製の芯材に巻き取り、パイプを製造する方法においては
、パイプをリブ構造としているために強度は強いが芯材
の加熱に多大の熱量を要し、更に熱可塑性樹脂のシート
を芯材に巻き取った後冷却工程を経て芯材を除去する工
程を必要とすることおよび芯材の設備費が高いために製
造コストが高くなりまた、芯材が金属製で重量が重いた
めに取り扱いが困難であるし防錆等の管理が必要でる等
の欠点があった。On the other hand, in the method of manufacturing pipes by winding a sheet of thermoplastic resin extruded from an extruder around a metal core material, the pipe has a ribbed structure, which provides strong strength, but requires a large amount of heat to heat the core material. In addition, manufacturing costs are high due to the need for a step of winding the thermoplastic resin sheet around the core material, followed by a cooling process, and then removing the core material, and the high cost of equipment for the core material. The core material is made of metal and is heavy, making it difficult to handle and requiring controls such as rust prevention.
本発明は上述の如き欠点を除去するもので、熱可塑性樹
脂のパイプを芯材とし、該芯材に芯材の六回を加熱、溶
融しなから押出機より押出した熱可塑性樹脂を順次螺旋
状に巻き取り一体化して補強されたパイプを製造するも
のである。The present invention eliminates the above-mentioned drawbacks, and uses a thermoplastic resin pipe as a core material, heats the core material six times, melts it, and then extrudes the thermoplastic resin from an extruder into the core material in a spiral manner. A reinforced pipe is manufactured by winding it into a shape and integrating it into a single piece.
本発明の一実施例を説明すると、熱可塑性樹脂パイプの
芯材１を円周方向に回転させると共に軸方向に移動させ
、芯材１の表面を順次均一に加熱、溶融しなから押出機
より押し出した熱可塑性樹脂の帯状シート２を一部重ね
て螺旋状に巻き取り、重なり部３を熱可塑性樹脂が融点
以上の温度を有している間に圧着ロールで芯材１と圧着
一体化して第２図に示す如き補強されたパイプを製造す
るものである。To explain one embodiment of the present invention, a core material 1 of a thermoplastic resin pipe is rotated in the circumferential direction and moved in the axial direction, and the surface of the core material 1 is sequentially and uniformly heated and melted before being transferred to an extruder. The extruded thermoplastic resin strip sheets 2 are partially overlapped and wound into a spiral shape, and the overlapping portion 3 is crimped and integrated with the core material 1 using a pressure roll while the thermoplastic resin has a temperature higher than its melting point. A reinforced pipe as shown in FIG. 2 is manufactured.
更に、リブ形成用芯材４を使用してリブ構造とした熱可
塑性樹脂の帯状シート２′或は押出機より押し出したリ
ブ構造の熱可塑性樹脂５を実施例と同様の方法で芯材１
に順次螺旋状に巻き取り、第３図或は第４図に示す如き
リブ構造の補強されたパイプも製造できる。Furthermore, a thermoplastic resin strip 2' having a rib structure using the core material 4 for forming ribs or a thermoplastic resin 5 having a rib structure extruded from an extruder is made into the core material 1 in the same manner as in the example.
It is also possible to manufacture a reinforced pipe with a rib structure as shown in FIG. 3 or 4 by sequentially winding the material into a spiral shape.
尚、芯材１を円周方向に回転させると共に押出機を芯材
１の軸方向に移動させ、上記と同様の補強されたパイプ
を製造することもできる。Note that it is also possible to manufacture a reinforced pipe similar to the above by rotating the core material 1 in the circumferential direction and moving the extruder in the axial direction of the core material 1.
上述の如く本発明においては、熱可塑性樹脂パイプを芯
材として更に熱可塑性樹脂のシート等を螺旋状に巻き芯
材と一体化させているためパイプの剛性は増加し、従来
の押出成形パイプに比して半分の樹脂量で同一の偏平荷
重強度を保持することができ、円周方向の引張り強度が
増すために内圧による破壊強度が押出成形パイプよりも
向上した。As mentioned above, in the present invention, a thermoplastic resin pipe is used as a core material, and a thermoplastic resin sheet or the like is spirally wound and integrated with the core material, so that the rigidity of the pipe increases, and it is different from conventional extruded pipes. In comparison, the same flat load strength can be maintained with half the amount of resin, and because the tensile strength in the circumferential direction is increased, the fracture strength due to internal pressure is improved compared to extruded pipes.
また、金属製の芯材に熱可塑性樹脂のシート等を螺旋状
に巻き取り、芯材を除去して製造するパイプに比して製
造工数は２／３に削減可能で製造コストを低くすること
ができ、工業的価値極めて犬なるものである。In addition, compared to pipes that are manufactured by spirally winding a thermoplastic resin sheet around a metal core material and removing the core material, manufacturing man-hours can be reduced to two-thirds, reducing manufacturing costs. It is a dog with great industrial value.
第１図は本発明に使用する熱可塑性樹脂パイプの芯材の
説明図、第２図、第３図および第４図は本発明によるパ
イプの一部欠截断面図である。
１は芯材。FIG. 1 is an explanatory diagram of a core material of a thermoplastic resin pipe used in the present invention, and FIGS. 2, 3, and 4 are partially cutaway sectional views of the pipe according to the present invention. 1 is the core material.
Claims (1)
溶融しなから押出機より押出した熱可塑性樹脂を順次螺
旋状に巻きとり、芯材と一体化することを特徴とするパ
イプの製造法。1 Heat the surface of the core material of the thermoplastic resin pipe,
A pipe manufacturing method characterized by sequentially winding a melted thermoplastic resin extruded from an extruder into a spiral shape and integrating it with a core material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10739574A JPS5822343B2 (en) | 1974-09-18 | 1974-09-18 | Pipe noseizouhou |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10739574A JPS5822343B2 (en) | 1974-09-18 | 1974-09-18 | Pipe noseizouhou |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5134275A JPS5134275A (en) | 1976-03-23 |
| JPS5822343B2 true JPS5822343B2 (en) | 1983-05-09 |
Family
ID=14458041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10739574A Expired JPS5822343B2 (en) | 1974-09-18 | 1974-09-18 | Pipe noseizouhou |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5822343B2 (en) |
-
1974
- 1974-09-18 JP JP10739574A patent/JPS5822343B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5134275A (en) | 1976-03-23 |
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