JPH0729078B2 - Pipe inner surface lining object - Google Patents
Pipe inner surface lining objectInfo
- Publication number
- JPH0729078B2 JPH0729078B2 JP29134086A JP29134086A JPH0729078B2 JP H0729078 B2 JPH0729078 B2 JP H0729078B2 JP 29134086 A JP29134086 A JP 29134086A JP 29134086 A JP29134086 A JP 29134086A JP H0729078 B2 JPH0729078 B2 JP H0729078B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- soft resin
- lining material
- pipe inner
- back pressure
- 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
- 239000011347 resin Substances 0.000 claims description 22
- 229920005989 resin Polymers 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Coating Apparatus (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、軟質樹脂から成り、管内での背圧による移動
に伴って液状ライニング材を押圧移送すると共に管内面
に塗布するための管内面ライニング用物体に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an inner surface of a pipe, which is made of a soft resin, presses and transfers the liquid lining material with movement due to back pressure in the pipe, and applies the inner surface of the pipe. Regarding lining objects.
従来、軟質樹脂は中実状のもの又は独立気泡を有するも
ので、物体に背圧を付与する流体が物体を通過しないよ
うになっており、これは、物体を背圧で管内移動させる
に際して、背圧が抜けない方が物体によるライニング材
押圧移送を良好に行えると観念されていたためである。Conventionally, a soft resin is a solid resin or one having closed cells so that a fluid that gives a back pressure to an object does not pass through the object. This is because it was considered that the lining material pressing transfer by the object can be favorably performed when the pressure does not escape.
しかし、実際には、例えば管の縮径部やコックなどにお
いて、一旦物体が詰まってしまうと施工が不可能になり
やすく、一層の改良の余地があった。However, in practice, for example, in the reduced diameter portion of the pipe, the cock, etc., once the object is clogged, the construction is likely to be impossible, and there is room for further improvement.
本発明の目的は、前述の従来観念から脱却した全く新規
な技術思想によって、物体が一旦管内で詰っても、再び
物体を背圧で管内移動できるようにする点にある。An object of the present invention is to make it possible to move an object again in the tube by back pressure, even if the object is once clogged in the tube, by a completely new technical idea that deviates from the above conventional idea.
〔問題点を解決するための手段〕 本発明の特徴構成は、物体を形成する軟質樹脂の少なく
とも一部が、前面から後面にわたって連続気泡を有する
多孔状に形成されていることにあり、その作用効果は次
の通りである。[Means for Solving Problems] A characteristic configuration of the present invention is that at least a part of a soft resin forming an object is formed into a porous shape having open cells from the front surface to the rear surface, and its action The effects are as follows.
つまり、従来においては回避しなければならないと観念
されていた通気性を備えさせるべく、物体の全部又は一
部を、前面から後面にわたって連続気泡の有る多孔体に
形成することによって、物体が一旦管内で詰まっても、
再び物体を背圧で管内移動できるようになった。In other words, in order to provide air permeability that was conventionally thought to be avoided, all or part of the object is formed into a porous body with open cells from the front surface to the rear surface, so that the object is Even if you get stuck in
Once again, the object can be moved in the tube by back pressure.
さらに詳述すると、物体が通気性であっても、物体で押
圧移送される液状ライニング材の作用で物体の背圧が多
孔状の部分を抜けることを十分に阻止でき、背圧による
物体移動に伴うライニング材の押圧移送及び管内面への
塗布を良好に行えるのであり、そして、管縮径部やコッ
ク等において物体が詰まっても、物体の多孔状部分を通
過した流体でライニング材だけを押進めることができ、
ライニング材が物体から離れると物体の移動及び変形の
抵抗力が十分大巾に減少し、そのために再び粉体が背圧
で押し進められ、再びライニング材が物体で押圧移送さ
れるようになるのである。More specifically, even if the object is breathable, the back pressure of the object can be sufficiently prevented from passing through the porous portion due to the action of the liquid lining material that is pressed and transferred by the object, and the back pressure can prevent the object from moving. Therefore, it is possible to satisfactorily transfer the lining material and apply it to the inner surface of the pipe, and even if the object is clogged in the reduced diameter part of the pipe or the cock, the lining material is pressed only by the fluid that has passed through the porous part of the object. Can proceed,
When the lining material is separated from the object, the resistance force of the movement and deformation of the object is reduced to a sufficiently large degree, so that the powder is again pushed by the back pressure, and the lining material is again pressed and transferred by the object. .
その結果、物体が管内で詰まったために施工が不可能に
なり、物体の取出しに多大の労力と作業時間を費すとい
う不都合な事態を十分に防止でき、背圧による物体移動
を利用しての管内面ライニング処理を、たとえ管縮径部
やコックが存在しても、確実にかつ能率良く行えるよう
になった。As a result, the object becomes clogged inside the pipe, making it impossible to perform construction, and it is possible to sufficiently prevent the inconvenient situation that it takes a lot of labor and work time to take out the object, and it is possible to use the object movement by back pressure. The inner surface of the pipe can be reliably and efficiently processed even if there is a reduced diameter portion or a cock.
次に実施例を示す。 Next, examples will be shown.
第１図に示すように、連続気泡（１）を有する多孔状の
軟質樹脂（２）をほぼ砲弾形に形成し、その砲弾形状の
軟質樹脂（２）の後面に凹部（３）を形成し、管内での
背圧による移動に伴って液状ライニング材を押圧移送す
ると共に管内面に塗布するための管内面ライニング用物
体を形成してある。As shown in FIG. 1, a porous soft resin (2) having open cells (1) is formed into a substantially bullet shape, and a concave portion (3) is formed on the rear surface of the bullet-shaped soft resin (2). The object for pipe inner surface lining is formed to press and transfer the liquid lining material with the movement due to the back pressure in the pipe and to apply the liquid to the inner surface of the pipe.
軟質樹脂（２）は、例えばポリエチレンフォーム、ポリ
ウレタンフォーム、ラバーフォーム、シリコンフォーム
等であり、また、軟質樹脂（２）の気孔率は80〜85％が
望ましく、連続気泡（１）の圧損は２〜5mmH2Oが望まし
く、軟質樹脂（２）の硬さは、0.056kg/cm2以上の圧縮
力で十分に大きく変形する程度が望ましい。The soft resin (2) is, for example, polyethylene foam, polyurethane foam, rubber foam, silicon foam, etc. Further, the porosity of the soft resin (2) is preferably 80 to 85%, and the pressure loss of the open cells (1) is 2. ～5MmH 2 O is preferable, the hardness of the soft resin (2) is desirably extent that sufficiently large deformation 0.056 kg / cm 2 or more compression strength.
凹部（３）の直径は、物体の外径よりも20mm程度小さい
値が望ましく、凹部（３）の深さは20〜25mmが望まし
い。The diameter of the recess (3) is preferably about 20 mm smaller than the outer diameter of the object, and the depth of the recess (3) is preferably 20 to 25 mm.
次に上記物体の利用例を示す。Next, an example of using the above object will be shown.
第２図（イ）に示すように、管（４）内に、その処理長
さや口径などに見合った適量の液状ライニング材（５）
を入れ、そのライニング材（５）の後側で物体（Ａ）を
入れ、コンプレッサー（６）を管（４）に接続する。As shown in FIG. 2 (a), in the pipe (4), an appropriate amount of liquid lining material (5) corresponding to the processing length and diameter of the pipe (4) is provided.
And the object (A) is placed behind the lining material (5) and the compressor (6) is connected to the pipe (4).
第２図（ロ）に示すように、コンプレッサー（６）によ
って空気や都市ガスなどの適当な流体を管（４）内に供
給し、物体（Ａ）を背圧で管内移動させ、物体（Ａ）に
より液状ライニング材（５）を押圧移送すると共に管内
面に塗布して、ライニング層（７）管内面全体に形成す
る。また、凹部（３）と連続気泡（１）の作用で管
（４）と物体（Ａ）の周面との間に位置するライニング
材（5a）に流体圧を均等に付与して、ライニング層
（７）を均等な厚さに仕上げる。As shown in FIG. 2 (b), an appropriate fluid such as air or city gas is supplied into the pipe (4) by the compressor (6), and the object (A) is moved by the back pressure inside the pipe (4). ), The liquid lining material (5) is pressed and transferred and applied to the inner surface of the pipe to form the lining layer (7) on the entire inner surface of the pipe. In addition, the fluid pressure is evenly applied to the lining material (5a) located between the pipe (4) and the peripheral surface of the object (A) by the action of the recess (3) and the open cells (1), and the lining layer Finish (7) to a uniform thickness.
第２図（ハ）に示すように、物体（Ａ）が管（４）の縮
径部（4a）に詰まった場合、第２図（ニ）に示すよう
に、凹部（３）と連続気泡（１）の作用で物体（Ａ）を
通過する流体で物体（Ａ）前方のライニング材（５）を
押進め、物体（Ａ）の移動と変形に対する抵抗力をライ
ニング材（５）の離間で減小させ、第２図（ホ）に示す
ように、物体（Ａ）を縮径部（4a）に対して通過させて
縮径させ、引続き管（４）のライニング処理を行わせ
る。As shown in FIG. 2C, when the object (A) is clogged in the reduced diameter portion (4a) of the pipe (4), as shown in FIG. By the action of (1), the fluid passing through the object (A) pushes the lining material (5) in front of the object (A), and the resistance force against the movement and deformation of the object (A) is separated by the lining material (5). As shown in FIG. 2 (e), the diameter of the pipe (4) is reduced by allowing the object (A) to pass through the reduced diameter portion (4a) to reduce the diameter, and the pipe (4) is subsequently subjected to lining treatment.
次に別実施例を説明する。 Next, another embodiment will be described.
軟質樹脂（２）の全体形状は球状、円柱状、その他であ
ってもよく、また、凹部（３）を省略してもよい。The overall shape of the soft resin (2) may be spherical, cylindrical, or the like, and the recess (3) may be omitted.
軟質樹脂（１）の一部を中実状又は独立気泡の多孔状の
ものから成る非通気性に形成して、物体の圧送性能を向
上してもよく、例えば下記の変形が可能である。A part of the soft resin (1) may be formed into a non-breathing material that is solid or porous with closed cells to improve the pumping performance of the object. For example, the following modifications are possible.
（イ）第３図（イ）に示すように、凹部（３）の底部に
非通気性の軟質樹脂（2a）を接着する。(A) As shown in FIG. 3 (a), a non-breathable soft resin (2a) is adhered to the bottom of the recess (3).
（ロ）第３図（ロ）に示すように、物体の中央部を非通
気性の軟質樹脂（2a）でかつ周部を通気性の軟質樹脂
（２）で形成する。(B) As shown in FIG. 3 (b), the central part of the object is made of a non-breathable soft resin (2a) and the peripheral part is made of a breathable soft resin (2).
（ハ）第３図（ハ）に示すように、物体の中央部を通気
性の軟質樹脂（２）でかつ周部を非通気性の軟質樹脂
（2a）で形成する。(C) As shown in FIG. 3 (c), the central part of the object is made of a breathable soft resin (2) and the peripheral part is made of a non-breathable soft resin (2a).
要するに、軟質樹脂（２）の少なくとも一部が、前面か
ら後面にわたって連続気泡を有する多孔状に形成してあ
ればよい。In short, it suffices that at least a part of the soft resin (2) is formed into a porous shape having open cells from the front surface to the rear surface.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.
第１図は本発明の実施例を示す断面図、第２図（イ）な
いし（ホ）は施工例の説明図、第３図（イ）ないし
（ハ）は本発明の各別の実施例を示す断面図である。 （１）……連続気泡、（２）……軟質樹脂、（３）……
凹部、（４）……管、（５）……液状ライニング材。FIG. 1 is a sectional view showing an embodiment of the present invention, FIGS. 2 (a) to (e) are explanatory views of a construction example, and FIGS. 3 (a) to (c) are different embodiments of the present invention. FIG. (1) …… Open cells, (2) …… Soft resin, (3) ……
Recess, (4) ... tube, (5) ... liquid lining material.
Claims (2)
背圧による移動に伴って液状ライニング材（５）を押圧
移送すると共に管内面に塗布するための管内面ライニン
グ用物体であって、前記軟質樹脂（２）の少なくとも一
部が、前面から後面にわたって連続気泡を有する多孔状
に形成されている管内面ライニング用物体。1. A pipe inner surface lining object made of a soft resin (2) for pressing and transferring a liquid lining material (5) as it moves by back pressure in the pipe (4) and applying it to the pipe inner surface. The pipe inner surface lining object, wherein at least a part of the soft resin (2) is formed into a porous shape having open cells from the front surface to the rear surface.
砲弾形に形成し、その砲弾形状の軟質樹脂（２）の後面
に凹部（３）を形成してある特許請求の範囲第１項に記
載の物体。2. The soft resin (1) as a whole is formed in a porous and almost bullet-like shape, and a concave portion (3) is formed on the rear surface of the bullet-shaped soft resin (2). Item 1. The object according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29134086A JPH0729078B2 (en) | 1986-12-05 | 1986-12-05 | Pipe inner surface lining object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29134086A JPH0729078B2 (en) | 1986-12-05 | 1986-12-05 | Pipe inner surface lining object |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63143966A JPS63143966A (en) | 1988-06-16 |
| JPH0729078B2 true JPH0729078B2 (en) | 1995-04-05 |
Family
ID=17767652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29134086A Expired - Lifetime JPH0729078B2 (en) | 1986-12-05 | 1986-12-05 | Pipe inner surface lining object |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729078B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006049415B4 (en) | 2006-10-16 | 2023-05-11 | Pme Fluidtec Gmbh | Process and device for producing a component made of plastic and having a cavity with at least two sections or a plurality of cavities |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0720646B2 (en) * | 1990-11-30 | 1995-03-08 | アァルピィ東プラ株式会社 | Hollow body manufacturing method |
| US5609186A (en) * | 1994-11-14 | 1997-03-11 | Tokyo Gas Co., Ltd. | Methods of lining the internal surface of a pipe |
| JP4203607B2 (en) * | 1998-08-06 | 2009-01-07 | 荏原テクノサーブ株式会社 | Piping for pipe inner surface lining and pipe inner lining method |
| EP2145747B1 (en) * | 2008-07-16 | 2013-02-27 | Röchling Automotive AG & Co. KG | Molding device and method for producing hollow objects with a projectile formed during the molding process |
| EP2511065B1 (en) * | 2011-04-14 | 2013-12-04 | Röchling Automotive AG & Co. KG | Moulding method and device for producing a hollow moulded object |
-
1986
- 1986-12-05 JP JP29134086A patent/JPH0729078B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006049415B4 (en) | 2006-10-16 | 2023-05-11 | Pme Fluidtec Gmbh | Process and device for producing a component made of plastic and having a cavity with at least two sections or a plurality of cavities |
| DE102006049415B8 (en) | 2006-10-16 | 2023-12-28 | Pme Fluidtec Gmbh | Method and device for producing a plastic component having a cavity with at least two sections or several cavities |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63143966A (en) | 1988-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |