DK144635B - PROCEDURE FOR PREPARING HEAT AND SOUND INSULATED CONDUCT - Google Patents
PROCEDURE FOR PREPARING HEAT AND SOUND INSULATED CONDUCT Download PDFInfo
- Publication number
- DK144635B DK144635B DK406772A DK406772A DK144635B DK 144635 B DK144635 B DK 144635B DK 406772 A DK406772 A DK 406772A DK 406772 A DK406772 A DK 406772A DK 144635 B DK144635 B DK 144635B
- Authority
- DK
- Denmark
- Prior art keywords
- film
- copolymer
- tube
- foam
- procedure
- Prior art date
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
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/143—Pre-insulated pipes
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
- B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
- B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
- B29C44/324—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables the preformed parts being tubular or folded to a tubular shape
-
- 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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Description
1 1446351 144635
Opfindelsen angår en fremgangsmåde til fremstilling af varme-og lydisolerede ledningsrør, der består af et metalrør, fortrinsvis af kobber, en isolation af skumformstof og en ydre kappe, ved hvilken fremgangsmåde der på metalrøret anbringes 5 en skruelinieformet afstandsholder, omkring hvilken der af et i længderetningen ført bånd formes et rør med slids, at der i den endnu åbne slids indgives et selvopskummeligt formstof, hvorefter båndets kanter sammenføjes. En sådan teknik kendes fra beskrivelsen til dansk patentansøgnig nr. 5530/70.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a method of producing heat and sound insulated conduits consisting of a metal tube, preferably of copper, an insulation of foam resin and an outer sheath, in which method is provided on the metal tube with a helical spacer around which longitudinally guided strip is formed a tube with slit, in which the still open slit is fed a self-foamable plastic material, after which the edges of the strip are joined together. Such a technique is known from the specification of Danish Patent Application No. 5530/70.
10 Fra beskrivelsen til det tyske offentliggørelsesskrift 1.928.977 kendes et varmeisoleret ledningsrør bestående af to koaksiale rør, hvoraf det ene kan være et metalrør, og mellem hvilke der er anbragt et skumstoflag. Mellem skumstoflaget og plastrørene er der tilvejebragt en vanddampuigennemtrængelig folie.10 From the description to German publication specification 1,928,977 a heat-insulated conduit consisting of two coaxial tubes, one of which may be a metal tube, and between which a foam layer is known. Between the foam layer and the plastic tubes is provided a water vapor permeable foil.
15 Det er foreslået at benytte en metalfolie, der er forsynet med et copolymerlag. Folien forhindrer, at skumstoflaget klæber til rørvæggene og ved rørenes relative forskydning i forhold til hinanden udsættes for forskydningskræfter. Dette rør lader sig ikke bøje, uden at metalfolien krøller eller rives itu, hvor-20 ved skumstoffets isderingsevne nedsættes ved fugtindtrængning.It is proposed to use a metal foil provided with a copolymer layer. The foil prevents the foam layer from adhering to the tube walls and at relative displacement of the tubes relative to each other is subjected to shear forces. This tube does not bend without wrinkling or tearing of the metal foil, whereby the foaming ability of the foam is reduced by moisture penetration.
Det er den foreliggende opfindelses formål at anvise et isoleret metalrør, der, i modsætning til det kendte let lader sig bøje, uden at folien knækkes.It is an object of the present invention to provide an insulated metal tube which, contrary to the known, is easily curved without breaking the foil.
Fremgangsmåden ifølge opfindelsen er ejendommelig ved, at en 25 folie, som i det mindste på den mod skumstoflaget vendende side er forsynet med en ved opvarmning klæbende copolymer, formes omkring den skruelinieformede afstandsholder til røret med slids, og at copolymerlaget ved varmepåvirkning, fortrinsvis hidrørende fra opskumningsprocessen, bringes til at indgå 30 en intim forbindelse med skumformstoffet.The process according to the invention is characterized in that a film, which is provided at least on the side facing the foam layer with a heating copolymer, is formed around the helical spacer to the tube with slit, and that the copolymer layer, when heated, preferably originates from the foaming process is caused to enter into an intimate connection with the foam.
2 1446352 144635
Opfindelsens væsentlige fordel ligger i, at der ved anvendelse af en med en copolymer belagt folie opnås en stabil binding, der både forhindrer en sønderdeling af det relativt skøre skumplastlag, og at folien sønderrives ved bøjning af 5 røret. Det er lykkedes at vikle sådanne fremstillede varme- og lydisolerede ledningsrør i ringbundter af stor længde, ligesom sådanne rør lettere kan installeres i bygninger, idet mange samlinger ved retningsændringer, takket være bøjningsevnen, kan spares. Folien kan enten være helt fremstillet af 10 en copolymer, eller der kan anvendes folier, der ensidigt er belagt med en copolymer.The essential advantage of the invention lies in the fact that by using a copolymer-coated film, a stable bond is obtained which both prevents disintegration of the relatively brittle foam plastic layer and that the film is torn by bending the tube. It has succeeded in winding such manufactured heat and sound insulated conductor pipes into large length bundles, and such pipes can be more easily installed in buildings, saving many joints by change of direction, thanks to the bending ability. The film can either be completely made of a copolymer or films that are unilaterally coated with a copolymer can be used.
Da meget bøjelige skumstoffer ikke er lysbestandige og nedbrydes af indfaldende lys, er det, som anført i krav 2's kendetegnende del, fordelagtigt at anvende en pigmenteret co-15 polymerfolie, men det kan, som anført i den kendetegnende del af krav 3, også være hensigtsmæssigt at forsyne copolymerfo-lien med et lysuigennemtrængeligt laklag. Herved sikres, at skumstoffet ikke nedbrydes og bliver skørt, således at det varme- og lysisolerede ledningsrør bevarer sin fulde bøjelighed.As highly flexible foams are not light resistant and are degraded by incident light, as stated in the characterizing part of claim 2, it is advantageous to use a pigmented copolymer film, but it may also be, as stated in the characterizing part of claim 3 it is convenient to provide the copolymer film with a light impervious lacquer layer. This ensures that the foam does not degrade and become brittle, so that the heat and lysis insulated conduit retains its full flexibility.
20 Dette har den yderligere fordel, at man kan kendetegne de forskellige ledningsrørtyper på enkel måde, f.eks. ved hjælp af forskellige farver.This has the additional advantage of being able to characterize the various types of conduit in a simple manner, e.g. using different colors.
Opfindelsen forklares nærmere nedenfor under henvisning til tegningen, som skematisk viser en udførelsesform for et led-25 ningsrør fremstillet ved fremgangsmåden ifølge opfindelsen.The invention is explained in more detail below with reference to the drawing, which schematically shows an embodiment of a conduit made by the method according to the invention.
Et kobberrør 1 er med henblik på varme- og/eller lydisolering omgivet af et fleksibelt polyurethanskumstoflag 12. Som form under opskumningen og som beskyttelseskappe for skumstoflaget 12 anvendes en copolymerfolie 7, eksempelvis fremstillet 30 af en copolymer på polyethylenbasis, som ved hjælp af en skrue-linieformet afstandsholder 4 holdes i afstand fra kobberrøret 1. Copolymeren har den egenskab at blive klæbende ved forhøjet temperatur, f.eks. ved 130°C, så at den klæber sammen med det færdighærdede skumstoflag 12. Den til sammenklæbningen nødven-35 dige varme frigøres for de fleste skumstoffers vedkommende un-For copper heat and / or sound insulation, a copper tube 1 is surrounded by a flexible polyurethane foam layer 12. As a mold during the foaming and as a protective cap for the foam layer 12, a copolymer film 7, for example made of a polyethylene-based copolymer 30, is used which, by means of a screw -shaped spacer 4 is spaced from the copper tube 1. The copolymer has the property of becoming adhesive at elevated temperature, e.g. at 130 ° C so that it adheres to the ready-cured foam layer 12. The heat required for adhesion is released for most foams.
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712141476 DE2141476A1 (en) | 1971-08-19 | 1971-08-19 | PROCESS FOR MANUFACTURING THERMAL AND SOUND INSULATED PIPES |
| DE2141476 | 1971-08-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK144635B true DK144635B (en) | 1982-04-26 |
| DK144635C DK144635C (en) | 1982-09-27 |
Family
ID=5817120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK406772A DK144635C (en) | 1971-08-19 | 1972-08-17 | PROCEDURE FOR THE MANUFACTURE OF HEAT AND SOUND INSULATED WIRING BEARS |
Country Status (9)
| Country | Link |
|---|---|
| JP (2) | JPS4829856A (en) |
| AR (1) | AR213057A1 (en) |
| BE (1) | BE785258R (en) |
| DE (1) | DE2141476A1 (en) |
| DK (1) | DK144635C (en) |
| FR (1) | FR2144517A6 (en) |
| GB (1) | GB1339118A (en) |
| IT (1) | IT1045419B (en) |
| NL (1) | NL174124C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3242074A1 (en) * | 1982-11-13 | 1984-05-17 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Process for manufacturing a thermally insulated conduit |
| DE3305420A1 (en) * | 1983-02-17 | 1984-08-23 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Process for producing a thermally insulated cable conduit |
| DE3506144A1 (en) * | 1985-02-22 | 1986-08-28 | kabelmetal electro GmbH, 3000 Hannover | Process for producing a heat-insulated line pipe |
| JPS6346615A (en) * | 1986-08-13 | 1988-02-27 | Canon Inc | Rotary head device |
| JPH01259922A (en) * | 1988-04-11 | 1989-10-17 | Toshiba Mach Co Ltd | Vent type injection molding machine |
| GB2419171A (en) * | 2004-10-14 | 2006-04-19 | Crp Group Ltd | Insulated pipe assembly |
-
1971
- 1971-08-19 DE DE19712141476 patent/DE2141476A1/en not_active Withdrawn
-
1972
- 1972-06-16 AR AR24262472A patent/AR213057A1/en active
- 1972-06-17 IT IT5096972A patent/IT1045419B/en active
- 1972-06-20 NL NL7208431A patent/NL174124C/en not_active IP Right Cessation
- 1972-06-22 BE BE785258A patent/BE785258R/en active
- 1972-06-23 JP JP47063126A patent/JPS4829856A/ja active Pending
- 1972-07-31 FR FR7227567A patent/FR2144517A6/fr not_active Expired
- 1972-08-15 GB GB3801672A patent/GB1339118A/en not_active Expired
- 1972-08-17 DK DK406772A patent/DK144635C/en active
-
1982
- 1982-04-08 JP JP57058928A patent/JPS5810223B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1339118A (en) | 1973-11-28 |
| JPS5810223B2 (en) | 1983-02-24 |
| NL174124C (en) | 1984-05-01 |
| JPS4829856A (en) | 1973-04-20 |
| JPS57185127A (en) | 1982-11-15 |
| FR2144517A6 (en) | 1973-02-09 |
| BE785258R (en) | 1972-10-16 |
| IT1045419B (en) | 1980-05-10 |
| DE2141476A1 (en) | 1973-02-22 |
| DK144635C (en) | 1982-09-27 |
| AR213057A1 (en) | 1978-12-15 |
| NL7208431A (en) | 1973-02-21 |
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