JPH0556259B2 - - Google Patents
Info
- Publication number
- JPH0556259B2 JPH0556259B2 JP18189187A JP18189187A JPH0556259B2 JP H0556259 B2 JPH0556259 B2 JP H0556259B2 JP 18189187 A JP18189187 A JP 18189187A JP 18189187 A JP18189187 A JP 18189187A JP H0556259 B2 JPH0556259 B2 JP H0556259B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- composite
- metal
- synthetic resin
- elastic 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.)
- Expired - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 38
- 239000002131 composite material Substances 0.000 claims description 34
- 229920003002 synthetic resin Polymers 0.000 claims description 23
- 239000000057 synthetic resin Substances 0.000 claims description 23
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- -1 polyethylene Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012968 tube insertion method Methods 0.000 description 1
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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/22—Corrugating
- B29C53/30—Corrugating of tubes
-
- 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
- B29L2009/00—Layered products
- B29L2009/003—Layered products comprising a metal layer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- 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】
〔産業上の利用分野〕
本発明は外側の金属管の内周面に樹脂製チユー
ブを密着せしめ、これを波形状に形成する複合フ
レキシブルチユーブの製造法に関するものであ
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing a composite flexible tube in which a resin tube is closely attached to the inner circumferential surface of an outer metal tube and formed into a corrugated shape. .
金属製フレキシブルチユーブに耐食性・耐薬品
性を保有せしめるために該金属チユーブの内周面
に樹脂をコーテイングする方法、あるいは樹脂チ
ユーブを嵌挿する方法が提案されている。しかし
コーテイング法では製造に手数を要し、コスト高
となる。また樹脂チユーブ嵌挿法では金属管と樹
脂チユーブとの密着が完全でなく、両管間に〓間
が生じ、該〓間に流体の一部が侵入するおそれが
あり、さらには強度的にも問題がある。
In order to make a metal flexible tube have corrosion resistance and chemical resistance, a method has been proposed in which the inner peripheral surface of the metal tube is coated with resin, or a method in which a resin tube is inserted. However, the coating method requires time and effort to manufacture, resulting in high costs. In addition, in the resin tube insertion method, the metal tube and the resin tube do not adhere completely, and a gap is created between the two tubes, and there is a risk that some fluid may enter between the two tubes. There's a problem.
本発明では樹脂チユーブが金属管内周面に密着
した複合フレキシブルチユーブを簡単に製造する
ことを目的とする。 An object of the present invention is to easily manufacture a composite flexible tube in which a resin tube is in close contact with the inner circumferential surface of a metal tube.
フレキシブルチユーブを構成する所望の径と長
さを有する直管状の金属管内に、この金属管の内
径より大なる外径を有する合成樹脂チユーブを伸
長させて金属管内径より少し小径として挿通した
後、該チユーブの伸長力を解除し、これにより合
成樹脂チユーブのもつ弾性復元力にて膨出復帰さ
せて金属管内周面に密接させて複合管とし、次に
この複合管内に芯金を挿通し、この芯金と複合管
間に嵌挿した弾性体をその両端より加圧すること
により弾性体の変形にて複合管を外周方向に膨出
せしめた後、該弾性体の加圧力を解除して、この
膨出部を複合管の外周に嵌挿する２つの対向する
挾持成形型にて挾持し、所望形の山形に成形する
と共に次にこの挾持成形型を抜き、この動作を順
次複数回繰り返して膨出部を連続して波形に形成
して複合フレキシブルチユーブを製造する。
After inserting a synthetic resin tube having an outer diameter larger than the inner diameter of the metal tube into a straight metal tube having a desired diameter and length constituting the flexible tube and inserting the tube into the tube with a diameter slightly smaller than the inner diameter of the metal tube, The stretching force of the tube is released, and the elastic restoring force of the synthetic resin tube causes it to expand and return to form a composite tube by bringing it into close contact with the inner peripheral surface of the metal tube, and then inserting a cored metal into the composite tube. The elastic body inserted between the core metal and the composite tube is pressurized from both ends to cause the composite tube to bulge in the outer circumferential direction due to the deformation of the elastic body, and then the pressing force of the elastic body is released, This bulging part is clamped between two opposing clamping molds that are fitted onto the outer periphery of the composite pipe, and formed into a desired mountain shape, and then the clamping molds are removed, and this operation is repeated several times in sequence. A composite flexible tube is manufactured by forming the bulges into a continuous wave shape.
次に本発明複合フレキシブルチユーブの製造法
を図示の実施例にもとづいて説明する。
Next, a method for manufacturing the composite flexible tube of the present invention will be explained based on the illustrated embodiments.
用途等に応じた外径、板厚、及び長さを有する
直管状の金属管１と、耐食性・耐薬品性に優れた
合成樹脂チユーブ２とを用いて複合フレキシブル
チユーブを製造する。この金属管は用途に応じて
アルミニウム・銅・ステンレス鋼・その他の金属
にて製造されたもので、また合成樹脂チユーブ２
はその外径を前記金属管１の内径より大となるよ
うにし、この両端部を互いに離反方向に伸長する
ことにより素材のもつ性質にて許容範囲内にて伸
長可能な合成樹脂にて製作される。例えば金属管
１の内径をd1、外径D1とし、合成樹脂チユーブ
２の内径をd2、外径をD2とすると
D2＞d1
の関係になるようにして金属管１、合成樹脂チユ
ーブ２を定める。この合成樹脂チユーブ２は複合
フレキシブルチユーブの用途に合つた樹脂例えば
フツソ樹脂・ポリエチレン・塩化ビニール等が選
定される。 A composite flexible tube is manufactured using a straight metal tube 1 having an outer diameter, thickness, and length according to the intended use, and a synthetic resin tube 2 having excellent corrosion resistance and chemical resistance. This metal tube is made of aluminum, copper, stainless steel, or other metals depending on the purpose, and synthetic resin tube 2
is made of a synthetic resin whose outer diameter is larger than the inner diameter of the metal tube 1 and which can be stretched within an allowable range due to the properties of the material by stretching both ends in directions away from each other. Ru. For example, if the inner diameter of the metal tube 1 is d 1 and the outer diameter D 1 , and the inner diameter of the synthetic resin tube 2 is d 2 and the outer diameter is D 2 , then the metal tube 1 and the synthetic resin tube 1 are Define resin tube 2. For this synthetic resin tube 2, a resin suitable for the purpose of the composite flexible tube, such as fluorocarbon resin, polyethylene, vinyl chloride, etc., is selected.
次にこの合成樹脂チユーブ２の両端部に互いに
離反する方向の軸方向すなわち第２図の矢符方向
に引張力を加える。このとき合成樹脂チユーブ２
は常温状態でもよく、また材質変化を生じない樹
脂であり、かつ加温により伸張性のあるものなら
ば加熱しながら引張る。そしてこのチユーブ２の
外径がD2′、内径がd2′となるようにする。この外
径D2′と金属管１の内径d1との関係は
D2′＞d1
となるようにする。 Next, a tensile force is applied to both ends of the synthetic resin tube 2 in the axial direction away from each other, that is, in the direction of the arrow in FIG. At this time, synthetic resin tube 2
may be kept at room temperature, and if it is a resin that does not change its material properties and is stretchable when heated, it can be stretched while being heated. The outer diameter of this tube 2 is set to be D 2 ′, and the inner diameter is set to d 2 ′. The relationship between this outer diameter D 2 ′ and the inner diameter d 1 of the metal tube 1 is set such that D 2 ′>d 1 .
次にこの合成樹脂チユーブ２の両端を引張した
状態で前記金属管１内に挿通する。これは引張状
態にある合成樹脂チユーブに金属管１を外嵌して
もよい。その後、チユーブ２の引張力を解除する
とこのチユーブ２のもつ復元性にて伸長されたチ
ユーブは縮少せんとする。このときチユーブ２の
外径も元の径になろうとする。これにて金属管１
の内周面に合成樹脂チユーブ２の外周面は密接さ
れるものとなる。しかし合成樹脂チユーブの外径
D2は金属管１の内径d1より大きいため、金属管
の内周面には合成樹脂チユーブの外周方向に膨出
せんとする復元力が作用しているので金属管と合
成樹脂チユーブは常に密接状態が維持される。 Next, the synthetic resin tube 2 is inserted into the metal tube 1 with both ends thereof being stretched. This may be done by fitting the metal tube 1 onto a synthetic resin tube that is in tension. Thereafter, when the tensile force on the tube 2 is released, the elongated tube will shrink due to the restorability of the tube 2. At this time, the outer diameter of the tube 2 also tries to return to its original diameter. With this, metal pipe 1
The outer circumferential surface of the synthetic resin tube 2 is brought into close contact with the inner circumferential surface of the synthetic resin tube 2. However, the outer diameter of the synthetic resin tube
Since D 2 is larger than the inner diameter d 1 of the metal tube 1, a restoring force is acting on the inner circumferential surface of the metal tube to prevent the synthetic resin tube from expanding in the outer circumferential direction, so the metal tube and the synthetic resin tube are always Close contact will be maintained.
このようにして複合管３を構成するとともにこ
の複合管３を用いて、次にこれを連続波形状に屈
曲形成して可撓性を有するようにする。 The composite tube 3 is constructed in this manner and is then bent into a continuous wave shape to provide flexibility.
この波形の形成は種々の方法例えばダイスによ
る成形法、ローラによる成形法、油圧成形法等が
適宜採用可能である。 Various methods such as die molding, roller molding, hydraulic molding, etc. can be appropriately used to form this waveform.
本発明では弾性体の加圧変形による方法につい
て以下第４図にもとづき説明する。 In the present invention, a method using pressure deformation of an elastic body will be explained below based on FIG. 4.
上記複合管３を芯金４の外周に嵌挿する。この
芯金４にはゴム・合成コム・合成樹脂等にて厚肉
管状に成形した弾性体５を嵌合支持しておく。そ
してこの複合管３の外周に挾持成形型６，７を具
備せしめるが、この挾持成形型６，７はその対向
面を成形するフレキシブルチユーブの断面形に合
うような凹凸面例えば波形等に形成しておくと共
に複合管外周にて二乃至三以上に分割できるよう
になし、弾性体５の嵌挿された複合管外周面をこ
の対向する両成形型６，７にて挾持し一方の成形
型７を固定しておき他方の成形型６では複合管３
を挾持しない状態とし、次に一端が固定された弾
性体の他方端より圧力を加えるとこの弾性体は印
加圧力に応じて変形をきたし第４図１の状態より
第４図２の状態に弾性体は軸外周方向に膨出す
る。この時弾性体に嵌挿された複合管も弾性体膨
出により同時に変形される。次に弾性体への印加
圧力を解除すると弾性体は自己即ちその弾発性に
より自動的に元の形状に戻るが膨出変形した複合
管はそのままの形状である。次に対向する二つの
挾持成形型６，７にてこの複合管外周膨出部両側
を挾持し、かつ両型間を狭小せしめると先に膨出
した複合管の膨出部はこの両型間にて挾持変形さ
れ所望の波形等に第４図３の如く成形される。次
に挾持成形型７による複合管の挾管を解除すると
共に該型を分解して複合管外周面より離間させ他
方の型６にて、あるいはその他により一ピツチの
み複合管を送り出し先に成形した波形部を越えた
位置で再び成形型７をセツトし、複合管の外周を
挾持し、成形型６を後退せしめる。 The composite tube 3 is fitted onto the outer periphery of the core metal 4. An elastic body 5 formed into a thick-walled tubular shape from rubber, synthetic comb, synthetic resin, etc. is fitted and supported on the core metal 4. The outer periphery of the composite tube 3 is provided with clamping molds 6 and 7, and the opposing surfaces of the clamping molds 6 and 7 are formed into an uneven surface, such as a corrugated shape, that matches the cross-sectional shape of the flexible tube to be molded. At the same time, the outer circumference of the composite tube is divided into two or three or more parts, and the outer circumferential surface of the composite tube with the elastic body 5 fitted therein is held between the two opposing molds 6 and 7, and one mold 7 is formed. is fixed, and in the other mold 6, the composite pipe 3 is
When the elastic body is not clamped and then pressure is applied from the other end of the elastic body whose one end is fixed, the elastic body deforms according to the applied pressure and changes from the state shown in Fig. 4 1 to the state shown in Fig. 4 2. The body bulges in the direction of the outer circumference of the axis. At this time, the composite tube fitted into the elastic body is also simultaneously deformed by the expansion of the elastic body. Next, when the pressure applied to the elastic body is released, the elastic body automatically returns to its original shape due to its elasticity, but the bulging and deformed composite tube remains in the same shape. Next, the opposing molding molds 6 and 7 are used to clamp both sides of the bulge on the outer periphery of the composite tube, and the space between the molds is narrowed. It is clamped and deformed at the holder and formed into a desired waveform as shown in FIG. 4 and 3. Next, the clamping of the composite tube by the clamping mold 7 was released, the mold was disassembled, the composite tube was separated from the outer peripheral surface of the composite tube, and the composite tube was molded in only one pitch to the destination using the other mold 6 or other means. The mold 7 is set again at a position beyond the corrugated portion, the outer periphery of the composite tube is clamped, and the mold 6 is retracted.
次に弾性体を加圧し複合管を膨出させる。この
動作を順次繰り返して連続的に自動的にフレキシ
ブルチユーブを形成する。この時フレキシブルチ
ユーブのスパン・ピツチ等は弾性体の印加圧力に
よる変形量、パイプ径及びパイプ、弾性体の許容
変化量等によつて予め定められる。 Next, the elastic body is pressurized to expand the composite tube. This operation is repeated in sequence to continuously and automatically form a flexible tube. At this time, the span, pitch, etc. of the flexible tube are determined in advance based on the amount of deformation of the elastic body due to the applied pressure, the pipe diameter, and the allowable amount of change of the pipe and the elastic body.
このようにして複合管の全長に亘つて波形状を
成形した後芯金を弾性体とともに引き抜くか又は
複合管を引き抜くことにより所望の複合フレキシ
ブルチユーブが製造されるものである。 After shaping the composite tube into a wave shape over its entire length in this manner, the desired composite flexible tube is manufactured by pulling out the core metal together with the elastic body or pulling out the composite tube.
本発明による時は金属管内周面に合成樹脂チユ
ーブを密接状態にある状態で波形に成形するた
め、金属管と樹脂チユーブとは一体となり、強度
が向上し、かつ耐圧性・耐食性が向上し、かつ製
造も従来の金属管のフレキシブルチユーブと同様
にして簡易に行える利点がある。
According to the present invention, since the synthetic resin tube is molded in a corrugated state in close contact with the inner peripheral surface of the metal tube, the metal tube and the resin tube are integrated, improving strength, pressure resistance, and corrosion resistance. It also has the advantage of being easy to manufacture in the same way as conventional metal flexible tubes.
第１図は金属管及び合成樹脂チユーブの素材の
断面図、第２図は引張状態の説明図、第３図は本
発明による方法で製造した複合管の断面図、第４
図はフレキシブルチユーブ製造工程の説明図であ
る。
１は金属管、２は合成樹脂チユーブ、３は複合
管、４は芯金、５は弾性体、６，７は挾持成形
型。
Fig. 1 is a cross-sectional view of the material of the metal pipe and synthetic resin tube, Fig. 2 is an explanatory view of the tensile state, Fig. 3 is a cross-sectional view of the composite pipe manufactured by the method according to the present invention, and Fig. 4 is a cross-sectional view of the material of the metal pipe and synthetic resin tube.
The figure is an explanatory diagram of the flexible tube manufacturing process. 1 is a metal tube, 2 is a synthetic resin tube, 3 is a composite tube, 4 is a metal core, 5 is an elastic body, and 6 and 7 are a clamping mold.
Claims (1)
大なる外径を有する合成樹脂チユーブを伸長させ
て金属管内径より少し小径として挿通した後、該
チユーブの伸長力を解除し、これにより合成樹脂
チユーブのもつ弾性復元力にて膨出復帰させて金
属管内周面に密接させて複合管とし、次にこの複
合管を所定ピツチの波形に形成することを特徴と
する複合フレキシブルチユーブの製造法。1. A synthetic resin tube having an outer diameter larger than the inner diameter of the metal tube is stretched into a straight metal tube and inserted into the tube with a diameter slightly smaller than the inner diameter of the metal tube, and then the stretching force of the tube is released. A method for producing a composite flexible tube, which comprises: expanding and returning the resin tube using its elastic restoring force and bringing it into close contact with the inner circumferential surface of a metal tube to form a composite tube; and then forming this composite tube into a corrugated shape with a predetermined pitch. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18189187A JPS6424726A (en) | 1987-07-20 | 1987-07-20 | Preparation of composite flexible tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18189187A JPS6424726A (en) | 1987-07-20 | 1987-07-20 | Preparation of composite flexible tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6424726A JPS6424726A (en) | 1989-01-26 |
| JPH0556259B2 true JPH0556259B2 (en) | 1993-08-19 |
Family
ID=16108688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18189187A Granted JPS6424726A (en) | 1987-07-20 | 1987-07-20 | Preparation of composite flexible tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6424726A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5830277A (en) * | 1995-05-26 | 1998-11-03 | Mattson Technology, Inc. | Thermal processing system with supplemental resistive heater and shielded optical pyrometry |
-
1987
- 1987-07-20 JP JP18189187A patent/JPS6424726A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6424726A (en) | 1989-01-26 |
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|---|---|---|---|
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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