CH625994A5 - Process and device for producing mouldings, in particular pipe bends, from pipes of thermoplastic foam - Google Patents
Process and device for producing mouldings, in particular pipe bends, from pipes of thermoplastic foam Download PDFInfo
- Publication number
- CH625994A5 CH625994A5 CH1040377A CH1040377A CH625994A5 CH 625994 A5 CH625994 A5 CH 625994A5 CH 1040377 A CH1040377 A CH 1040377A CH 1040377 A CH1040377 A CH 1040377A CH 625994 A5 CH625994 A5 CH 625994A5
- Authority
- CH
- Switzerland
- Prior art keywords
- foam
- pipe
- vacuum
- inner mold
- inner shape
- Prior art date
Links
- 239000006260 foam Substances 0.000 title claims description 53
- 238000000034 method Methods 0.000 title claims description 29
- 229920001169 thermoplastic Polymers 0.000 title claims description 9
- 239000004416 thermosoftening plastic Substances 0.000 title claims description 9
- 238000000465 moulding Methods 0.000 title description 4
- 238000001816 cooling Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000005496 tempering Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 2
- 230000006378 damage Effects 0.000 claims description 2
- 210000000497 foam cell Anatomy 0.000 claims description 2
- 239000004922 lacquer Substances 0.000 claims description 2
- 238000000137 annealing Methods 0.000 claims 2
- 230000001464 adherent effect Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 9
- 238000009413 insulation Methods 0.000 description 5
- -1 for example Polymers 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene 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
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000003466 welding 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/0029—Cold deforming of thermoplastics material
-
- 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
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
- B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
- B29C44/5636—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching with the addition of heat
-
- 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
- B29C53/02—Bending or folding
- B29C53/08—Bending or folding of tubes or other profiled members
- B29C53/083—Bending or folding of tubes or other profiled members bending longitudinally, i.e. modifying the curvature of the tube axis
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
-
- 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
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/22—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for bends
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1616—Cooling using liquids
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1658—Cooling using gas
-
- 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
- B29C53/02—Bending or folding
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/005—Hoses, i.e. flexible
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermal Insulation (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762638447 DE2638447C3 (de) | 1976-08-26 | 1976-08-26 | Verfahren und Vorrichtung zur Herstellung von Rohrbögen aus thermoplastischem Schaumstoff zum Isolieren von Rohrleitungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH625994A5 true CH625994A5 (en) | 1981-10-30 |
Family
ID=5986438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1040377A CH625994A5 (en) | 1976-08-26 | 1977-08-25 | Process and device for producing mouldings, in particular pipe bends, from pipes of thermoplastic foam |
Country Status (10)
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981003145A1 (en) * | 1980-05-07 | 1981-11-12 | P Mitchell | Thermoforming tubular articles |
| US4422999A (en) | 1981-12-31 | 1983-12-27 | Mitchell Peter R | Thermoforming tubular articles |
| FR2520664A1 (fr) * | 1982-01-29 | 1983-08-05 | Caoutchouc Manuf Plastique | Procede de fabrication de tuyaux souples de raccordement |
| US4506795A (en) * | 1983-02-18 | 1985-03-26 | Kerr Glass Manufacturing Corporation | Tamper-evident closure |
| GB9024619D0 (en) * | 1990-11-13 | 1991-01-02 | Mckechnie Plastics Ltd | Thermoplastic hoses and tubes |
| DE102006022876B4 (de) | 2006-05-15 | 2019-08-14 | Vector Foiltec Gmbh | Gekrümmtes Formteil und Verfahren zur Herstellung eines solchen Formteils |
| CN103507239B (zh) * | 2013-09-05 | 2015-10-14 | 广州中国科学院先进技术研究所 | 一种基于激光选择性成型技术的随形冷却装置 |
| EP3647018B1 (en) * | 2018-11-02 | 2025-05-14 | MSV SYSTEMS CZ s.r.o. | Mould for the spatial shaping of plastic parts made of hdpe or pa or similar plastics, in particular hdpe or pa tubes |
| CN110978517A (zh) * | 2019-12-26 | 2020-04-10 | 深圳市极光尔沃科技股份有限公司 | 一种lcd 3d打印机恒温系统 |
| DE102021200908A1 (de) | 2021-02-01 | 2022-08-04 | Conti Tech Techno-Chemie Gmbh | Vorrichtung und Verfahren zur Herstellung von gekrümmten Schläuchen oder Rohren aus thermoplastischen Halbzeugen |
| CN115583029A (zh) * | 2022-10-11 | 2023-01-10 | 北京工业大学 | 一种选择性激光烧结成型超高分子量聚乙烯的热处理方法 |
| CN115592984A (zh) * | 2022-10-11 | 2023-01-13 | 北京工业大学（Cn） | 一种选择性激光烧结成型尼龙材料的热处理方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1149747A (fr) * | 1955-05-10 | 1957-12-31 | Kaiserslautern Guss Armatur | Procédé et dispositif pour fabriquer des pièces moulées en matière plastique, par exemple en chlorure de polyvinyle, polyéthylène, etc., et articles divers ainsi obtenus |
| US2964796A (en) * | 1955-12-15 | 1960-12-20 | Resistoflex Corp | Preformed flexible hose and method of making it |
| GB902745A (en) * | 1958-01-08 | 1962-08-09 | Hilmor Ltd | Improvements in or relating to the bending of thermoplastic tubes |
| DE1679947A1 (de) * | 1967-10-07 | 1971-04-22 | Bolenz & Schaefer Maschf | Vorrichtung zum Herstellen von Rohrbogen aus vorgeschnittenen Kunststoffrohren |
| US3656233A (en) * | 1968-11-19 | 1972-04-18 | Dynalectron Corp | Making polytetrafluoroethylene articles including tubes, and fittings employing such tubes, having improved concentricity and dimensional stability |
| US3719737A (en) * | 1970-12-09 | 1973-03-06 | Bard Inc C R | Method of making a preformed curved epidural catheter |
| FR2216082A1 (en) * | 1973-02-07 | 1974-08-30 | Klein Ets Georges | Bending extruded PVC section - in which workpiece is heated while in bent condition, followed by cooling |
-
1976
- 1976-08-26 DE DE19762638447 patent/DE2638447C3/de not_active Expired
-
1977
- 1977-08-24 IT IT5076377A patent/IT1115771B/it active
- 1977-08-24 GB GB3559077A patent/GB1589667A/en not_active Expired
- 1977-08-25 DK DK377177A patent/DK377177A/da not_active Application Discontinuation
- 1977-08-25 BE BE180411A patent/BE858089A/xx unknown
- 1977-08-25 CH CH1040377A patent/CH625994A5/de not_active IP Right Cessation
- 1977-08-25 NL NL7709402A patent/NL7709402A/xx not_active Application Discontinuation
- 1977-08-25 SE SE7709561A patent/SE7709561L/xx not_active Application Discontinuation
- 1977-08-25 FR FR7725994A patent/FR2362712A1/fr active Granted
- 1977-08-26 IE IE178877A patent/IE45573B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE7709561L (sv) | 1978-02-27 |
| IE45573B1 (en) | 1982-10-06 |
| FR2362712B1 (enrdf_load_stackoverflow) | 1982-03-19 |
| GB1589667A (en) | 1981-05-20 |
| NL7709402A (nl) | 1978-02-28 |
| DE2638447A1 (de) | 1978-04-06 |
| IE45573L (en) | 1978-02-26 |
| IT1115771B (it) | 1986-02-03 |
| DE2638447B2 (de) | 1980-07-10 |
| BE858089A (fr) | 1977-12-16 |
| DE2638447C3 (de) | 1981-03-26 |
| FR2362712A1 (fr) | 1978-03-24 |
| DK377177A (da) | 1978-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |