JPS5841734B2 - Manufacturing method of insulation material for pipes - Google Patents
Manufacturing method of insulation material for pipesInfo
- Publication number
- JPS5841734B2 JPS5841734B2 JP53102139A JP10213978A JPS5841734B2 JP S5841734 B2 JPS5841734 B2 JP S5841734B2 JP 53102139 A JP53102139 A JP 53102139A JP 10213978 A JP10213978 A JP 10213978A JP S5841734 B2 JPS5841734 B2 JP S5841734B2
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- locking
- manufacturing
- foam
- resin foam
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/12—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Thermal Insulation (AREA)
Description
【発明の詳細な説明】 本発明はパイプ用保温材の製造方法に関する。[Detailed description of the invention] The present invention relates to a method of manufacturing a heat insulating material for pipes.
従来より、熱可塑性樹脂発泡体よりなる保温材は軽量で
あるとか断熱効果が優れている等の理由により広く利用
されており、その製造方法も種々知られている。BACKGROUND ART Conventionally, heat insulating materials made of thermoplastic resin foams have been widely used because they are lightweight and have excellent heat insulating effects, and various methods for producing them are also known.
たとえばパイプ状熱可塑性樹脂発泡体の外周全面に接着
剤層を有するフィルムをその１端が上記パイプ状発泡体
の長手方向に直線状になり、他端が係止可能なように遊
端を有するように積層し、その後（製造直後ないしパイ
プ等に装着する直前）前記直線状に積層されたフィルム
の一端に沿って発泡体の長手方向に直線状に切開するこ
とにより製造する方法が知られている。For example, a film having an adhesive layer all over the outer periphery of a tubular thermoplastic resin foam has one end that is linear in the longitudinal direction of the tubular foam and the other end that has a free end so that it can be locked. There is a known manufacturing method in which the foam is laminated as shown in FIG. There is.
しかしながら上記の如き方法ではパイプ状に成形し、定
尺に切断した後フィルムを被覆接着する工程と一担パイ
ブ状に成形した発泡体とその長手方向に切開する工程と
が必要であり製造工程が複雑になり、最終的には不良品
の発生や製造コストの増加にむすびついていた。However, the method described above requires a step of forming the foam into a pipe shape, cutting it to a regular length, and then covering and adhering it with a film, and a step of forming the foam into a single pipe shape and cutting it in the longitudinal direction, which makes the manufacturing process time-consuming. This increased complexity, ultimately leading to the occurrence of defective products and increased manufacturing costs.
本発明はより簡略化された工程で、係止具を備えたパイ
プ用保温材を製造する方法を提供することを目的として
なされたものであってその要旨は、長手方向に沿った直
線状の切開部を有する筒状熱可塑性樹脂発泡体の切開部
付近の外表面に、互に係止しうる係止部を有する２片の
係止具のうちの１片を、上記切開部付近の外表面に上記
係止具の他片を、上記２片の係止具の係止部同志が係止
された状態で固着することを特徴とするパイプ用保温材
の製造方法に存する。The present invention was made for the purpose of providing a method of manufacturing a pipe heat insulating material equipped with a locking tool using a more simplified process. One piece of the locking tool, which has locking parts that can be locked to each other, is attached to the outer surface of the cylindrical thermoplastic resin foam near the cutout. The method of manufacturing a heat insulating material for a pipe is characterized in that the other piece of the locking tool is fixed to the surface with the locking portions of the two pieces of the locking tool being locked together.
本発明において使用される筒状熱可塑性樹脂発泡体は熱
可塑性樹脂で製された筒状発泡体であって、熱可塑性樹
脂としてはたとえばポリエチレン、ポリプロピレン、ポ
リ塩化ビニル、ポリスチレン等があげられポリエチレン
が好適に使用され、特に架橋ポリエチレンが好ましい。The cylindrical thermoplastic resin foam used in the present invention is a cylindrical foam made of a thermoplastic resin, and examples of the thermoplastic resin include polyethylene, polypropylene, polyvinyl chloride, and polystyrene. It is preferably used, and crosslinked polyethylene is particularly preferred.
発泡体は独立気泡を有しているほうが断熱効果が優れて
いるので好ましく又発泡倍率は特に限定されるものでは
ないが１０〜４０倍が好ましい。It is preferable for the foam to have closed cells because it has an excellent heat insulating effect, and the expansion ratio is not particularly limited, but is preferably 10 to 40 times.
又発泡体の切開部付近の両側の外表面に２片よりなる係
止具が１片ずつ固着されるのであるから発泡体の外表面
は強度が犬であるのが好ましく、ポリエチレン等の熱可
塑性樹脂等のフィルムが積層された発泡体、特願昭５３
−４２１３７号に記載の如くインテグラルスキンを有す
る発泡体が好ましい。In addition, since two pieces of fasteners are fixed to the outer surface of the foam on both sides near the incision, it is preferable that the outer surface of the foam has a high strength and is made of thermoplastic material such as polyethylene. Foamed material laminated with films of resin, etc., patent application 1983
Foams with integral skins, such as those described in US Pat.
又切開部を有する筒状熱可塑性樹脂発泡体の製造方法は
特に限定されるものではなく公知の任意の方法で製造さ
れればよく、たとえば板状熱可塑性樹脂発泡体から切開
部を有する筒状熱可塑性樹脂発泡体を製造するには板状
熱可塑性樹脂発泡体の両側面をつき合せ、円筒状に変形
して、加熱することにより発泡体が板状に復元しようと
する応力を除去したのち、円筒状に保った状態で冷却す
ればよい。Further, the method for manufacturing the cylindrical thermoplastic resin foam having cut portions is not particularly limited and may be manufactured by any known method. To produce a thermoplastic resin foam, both sides of a plate-shaped thermoplastic resin foam are brought together, deformed into a cylindrical shape, and heated to remove the stress that causes the foam to restore its shape to a plate. , it is sufficient to cool it while keeping it in a cylindrical shape.
又筒状熱可塑性樹脂発泡体を押出成形等公知の方法で製
造し、次にカッター等で発泡体の長手方向に切開しても
よい。Alternatively, a cylindrical thermoplastic resin foam may be manufactured by a known method such as extrusion molding, and then the foam may be cut in the longitudinal direction with a cutter or the like.
本発明において使用される２片の係止具は互に係止しう
る係止部を有する任意の２片の係止具が使用できるが、
熱可塑性樹脂発泡体に固着されるのであるから、ポリエ
チレン、ポリプロピレン、ナイロン等の熱可塑性樹脂製
のものが好ましい。As the two-piece locking device used in the present invention, any two-piece locking device having locking portions that can lock each other can be used, but
Since it is fixed to the thermoplastic resin foam, it is preferably made of thermoplastic resin such as polyethylene, polypropylene, or nylon.
次に本発明の製造方法を図面により説明する。Next, the manufacturing method of the present invention will be explained with reference to the drawings.
第１図は本発明の製造方法の一例を示す工程図である。FIG. 1 is a process diagram showing an example of the manufacturing method of the present invention.
第１図において１は筒状熱可塑性樹脂発泡体であり送り
ロール２及び２１で送られ、カッター３で筒状熱可塑性
樹脂発泡体１はその長手方向に沿って直線状に切開かれ
、切開かれた筒状熱可塑性樹脂発泡体１は切開部合せ具
４により切開部が合されて圧着ロール９に送られる。In FIG. 1, a cylindrical thermoplastic resin foam 1 is fed by feed rolls 2 and 21, and a cutter 3 cuts the cylindrical thermoplastic resin foam 1 linearly along its longitudinal direction. The incisions of the cylindrical thermoplastic resin foam 1 are brought together by an incision part matching tool 4 and sent to a pressure roll 9 .
Ｔは巻ロール６に巻かれた係止部同志が係止された係止
具である。T is a locking tool in which locking portions wound around the winding roll 6 are locked together.
係止具７は送りロール８により送られ、熱風供給装置５
から供給された３００〜４００℃の熱風により加熱され
、前記切開かれた筒状熱可塑性樹脂発泡体１の切開部の
両側付近の外表面に固着するように圧着ロール９，９１
，９２，９３゜９４及び９５によって圧着される。The locking tool 7 is sent by a feed roll 8, and the hot air supply device 5
The pressure rolls 9 and 91 are heated by hot air of 300 to 400° C. supplied from the cylindrical thermoplastic resin foam 1 and fixed to the outer surface of the cut cylindrical thermoplastic resin foam 1 near both sides of the cut portion.
, 92, 93° 94 and 95.
この際係止具７の１片は筒状熱可塑性樹脂発泡体１の切
開部付近の一方の外表面に固着され、係止具７の他方は
前記切開部付近の他方の外表面に固着される。At this time, one piece of the locking device 7 is fixed to one outer surface of the cylindrical thermoplastic resin foam 1 near the incision, and the other piece of the locking device 7 is fixed to the other outer surface of the tubular thermoplastic resin foam 1 near the cutout. Ru.
又圧着ロール９と９１．９２と９３及び９４と９５の間
隔は係止具７が筒状熱可塑性樹脂発泡体１によりよく固
着されるように筒状熱可塑性樹脂発泡体１の外径より若
干小さくなされるのが好ましい。In addition, the distances between the pressure rolls 9 and 91, 92 and 93, and 94 and 95 are slightly larger than the outer diameter of the cylindrical thermoplastic resin foam 1 so that the locking tool 7 is better fixed to the cylindrical thermoplastic resin foam 1. Preferably, it is made small.
第２図は第１図Ａ−ににおける断面図であり、筒状熱可
塑性樹脂発泡体１は扁平状になり、切開部１１は合さっ
ている。FIG. 2 is a cross-sectional view taken in FIG. 1A-, in which the cylindrical thermoplastic resin foam 1 is flattened and the cutouts 11 meet.
又係止具７の各々の片は筒状熱可塑性樹脂発泡体１の切
開部１１の両側付近の各々の外表面に熱融着されかつ係
止部７１は係止されている。Further, each piece of the locking member 7 is heat-sealed to the outer surface of the tubular thermoplastic resin foam 1 near both sides of the cutout 11, and the locking portion 71 is locked.
係止具７が熱融着された筒状熱可塑性樹脂発泡体はカッ
ター１０により適宜の長さに切断されパイプ用保温材と
なされる。The cylindrical thermoplastic resin foam to which the locking tool 7 is heat-sealed is cut into a suitable length by a cutter 10 to form a heat insulating material for a pipe.
上記製造方法においては係止具を筒状熱可塑性樹脂発泡
体に固着する方法として熱融着する方法が採用されてい
るが溶液型接着剤、ホットメルト型接着剤等で接着され
てもよい。In the above manufacturing method, a method of heat fusing is adopted as a method of fixing the fastener to the cylindrical thermoplastic resin foam, but the fastener may be bonded with a solution type adhesive, a hot melt type adhesive, or the like.
第３図は本発明の製造方法で得られたパイプ用保温材の
断面図であり、係止部７１．７１が分離された状態であ
る。FIG. 3 is a sectional view of the heat insulating material for pipes obtained by the manufacturing method of the present invention, with the locking portions 71 and 71 separated.
該パイプ用保温材は係止部を分離し、切開部１１を押し
開いてパイプに装着した後係止具を係止することにより
被覆を完了するのである。The pipe heat insulating material is coated by separating the locking portion, pushing open the cutout 11, attaching it to the pipe, and then locking the locking tool.
本発明の製造方法は上述の通りであるから切開部に係止
具が固着された筒状熱可塑性樹脂発泡体からなるパイプ
用保温材が容易にかつ連続的に製造されることができる
。Since the manufacturing method of the present invention is as described above, it is possible to easily and continuously manufacture a pipe heat insulating material made of a cylindrical thermoplastic resin foam with a locking tool fixed to the incision.
％に筒状熱可塑性樹脂発泡体の成型装置と連結して製造
すれば連続的に長尺物が製造できる。If the process is connected to a molding device for cylindrical thermoplastic resin foam, long products can be manufactured continuously.
又短尺物は得られた長尺物を切断することにより得られ
、この場合には係止具の端部が発泡体より長すぎたり短
かすぎたりすることがないので端部の後処理加工する必
要がない。In addition, short pieces can be obtained by cutting the obtained long pieces, and in this case, the ends of the locking tool are not too long or too short than the foam, so post-processing of the ends is required. There's no need to.
又、本発明方法では係止具の係止部同志が係止された状
態で発泡体の切開部付近に固着するものであるから、係
止具の係止部同志を係止できる適切な発泡体の位置に固
着することができ、係止部同志を係止せずに係止具の２
片のうちの一辺づつを発泡体に固着する場合のように、
２片を相互に離し過ぎて固着して係止部同志の係止が不
能となったり、２片を相互に接近させ過ぎて固着して、
係止部同志を係止させても切開部に於いて発泡体の端線
間に間隙が生じたりするおそれは全くない。In addition, in the method of the present invention, since the locking parts of the locking tool are fixed to the vicinity of the incision of the foam in a locked state, an appropriate foam that can lock the locking parts of the locking tool to each other is used. It can be fixed to the position of the body, and the two locking parts can be fixed without locking the locking parts together.
As in the case of adhering one side of each piece to foam,
If the two pieces are placed too far apart and stuck together, making it impossible for the locking parts to lock together, or if the two pieces are placed too close to each other and stuck,
Even if the locking parts are locked together, there is no possibility that a gap will be created between the end lines of the foam at the incision.
又得られた保温材は熱可塑性樹脂発泡体であり筒状に成
形されているものであるから、軽量であり、断熱効果が
すぐれており又常に筒状に保たれているのでパイプに容
易に装着することができ、従ってパイプ用保温材として
好適に使用できるのである。In addition, the obtained heat insulating material is a thermoplastic resin foam and is molded into a cylindrical shape, so it is lightweight and has excellent heat insulation effects.Also, since it is always kept in a cylindrical shape, it can be easily attached to pipes. Therefore, it can be suitably used as a heat insulating material for pipes.
第１図は本発明の製造方法の一例を示す工程図である。
第２図は第１図Ａ−Ａ′における断面図であり、第３図
は得られたパイプ用保温材の断面図である。
１・・・筒状熱可塑性樹脂発泡体、１１・・・切開部、
２．２１・・・送りロール、３・・・カッター ４・・
・切開部合せ具、５・・・熱風供給装置、６・・・巻ロ
ール、７・・・係止Ｊｊ、７１・・・係止部、８・・・
送りロール、９、・・９１．９２，９３，９４．９５・
・・圧着ロール、１０・・・カッター。FIG. 1 is a process diagram showing an example of the manufacturing method of the present invention. FIG. 2 is a sectional view taken along line AA' in FIG. 1, and FIG. 3 is a sectional view of the obtained heat insulating material for pipes. 1... Cylindrical thermoplastic resin foam, 11... Cutout,
2.21...Feed roll, 3...Cutter 4...
- Incision fitting tool, 5... Hot air supply device, 6... Winding roll, 7... Locking Jj, 71... Locking part, 8...
Feed roll, 9,...91.92,93,94.95.
...Crimping roll, 10...Cutter.
Claims (1)
塑性樹脂発泡体の切開部付近の一方の外表面に、互に係
止しうる係止部を有する２片の係止具のうちの１片を、
上記切開部付近の他方の外表面に上記係止具の他片を、
上記２片の係止具の係止部同志が係止された状態で固着
することを特徴とするパイプ用保温材の製造方法。 ２ 熱可塑性樹脂がポリエチレンである特許請求の範囲
第１項記載の製造方法。 ３ 係止具が熱可塑性樹脂製のものである特許請求の範
囲第１項記載の製造方法。 ４ 係止具の固着が熱融着によってなされる特許請求の
範囲第１項記載の製造方法。[Claims] 1. Two pieces having a locking portion that can be locked to each other on one outer surface near the cutout of a cylindrical thermoplastic resin foam having a linear cutout along the longitudinal direction. One piece of the locking tool,
Place the other piece of the locking tool on the other outer surface near the incision,
A method for manufacturing a heat insulating material for a pipe, characterized in that the locking portions of the two pieces of locking tools are fixed together in a locked state. 2. The manufacturing method according to claim 1, wherein the thermoplastic resin is polyethylene. 3. The manufacturing method according to claim 1, wherein the fastener is made of thermoplastic resin. 4. The manufacturing method according to claim 1, wherein the fastening device is fixed by heat fusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53102139A JPS5841734B2 (en) | 1978-08-21 | 1978-08-21 | Manufacturing method of insulation material for pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53102139A JPS5841734B2 (en) | 1978-08-21 | 1978-08-21 | Manufacturing method of insulation material for pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5528834A JPS5528834A (en) | 1980-02-29 |
| JPS5841734B2 true JPS5841734B2 (en) | 1983-09-14 |
Family
ID=14319426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53102139A Expired JPS5841734B2 (en) | 1978-08-21 | 1978-08-21 | Manufacturing method of insulation material for pipes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5841734B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6128558Y2 (en) * | 1981-05-29 | 1986-08-23 | ||
| US5980800A (en) * | 1998-03-24 | 1999-11-09 | Tsai; Shih Fan | Method for making a bracket of a brake lever |
| CN110549634A (en) * | 2019-07-31 | 2019-12-10 | 临海伟星新型建材有限公司 | Continuous composite set of insulating tube |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS532904A (en) * | 1976-06-29 | 1978-01-12 | Tokuzou Kuruto | Method of laying pile for poor subsoil with much spring water |
| JPS604653Y2 (en) * | 1976-06-29 | 1985-02-12 | 本田技研工業株式会社 | Automatic transfer device |
-
1978
- 1978-08-21 JP JP53102139A patent/JPS5841734B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5528834A (en) | 1980-02-29 |
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