DK142268B - Fremgangsmåde ved kontinuerlig fremstilling af varmisolerede ledningsrør. - Google Patents
Fremgangsmåde ved kontinuerlig fremstilling af varmisolerede ledningsrør. Download PDFInfo
- Publication number
- DK142268B DK142268B DK253975A DK253975A DK142268B DK 142268 B DK142268 B DK 142268B DK 253975 A DK253975 A DK 253975A DK 253975 A DK253975 A DK 253975A DK 142268 B DK142268 B DK 142268B
- Authority
- DK
- Denmark
- Prior art keywords
- plastic
- foaming
- continuous manufacture
- foam
- tube
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 18
- 238000004519 manufacturing process Methods 0.000 title description 6
- 239000004033 plastic Substances 0.000 description 17
- 229920003023 plastic Polymers 0.000 description 17
- 239000002184 metal Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000006260 foam Substances 0.000 description 10
- 238000005187 foaming Methods 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 239000011888 foil Substances 0.000 description 7
- 238000004132 cross linking Methods 0.000 description 5
- 239000004088 foaming agent Substances 0.000 description 5
- -1 Polyethylene Polymers 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000006261 foam material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK253975A DK142268B (da) | 1975-06-04 | 1975-06-04 | Fremgangsmåde ved kontinuerlig fremstilling af varmisolerede ledningsrør. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK253975 | 1975-06-04 | ||
| DK253975A DK142268B (da) | 1975-06-04 | 1975-06-04 | Fremgangsmåde ved kontinuerlig fremstilling af varmisolerede ledningsrør. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK253975A DK253975A (enExample) | 1976-12-05 |
| DK142268B true DK142268B (da) | 1980-10-06 |
| DK142268C DK142268C (enExample) | 1981-03-02 |
Family
ID=8113090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK253975A DK142268B (da) | 1975-06-04 | 1975-06-04 | Fremgangsmåde ved kontinuerlig fremstilling af varmisolerede ledningsrør. |
Country Status (1)
| Country | Link |
|---|---|
| DK (1) | DK142268B (enExample) |
-
1975
- 1975-06-04 DK DK253975A patent/DK142268B/da not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DK253975A (enExample) | 1976-12-05 |
| DK142268C (enExample) | 1981-03-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |