CA2044536A1 - Procede d'extrusion de profiles en polymeres a surface lisse, sans defaut - Google Patents
Procede d'extrusion de profiles en polymeres a surface lisse, sans defautInfo
- Publication number
- CA2044536A1 CA2044536A1 CA 2044536 CA2044536A CA2044536A1 CA 2044536 A1 CA2044536 A1 CA 2044536A1 CA 2044536 CA2044536 CA 2044536 CA 2044536 A CA2044536 A CA 2044536A CA 2044536 A1 CA2044536 A1 CA 2044536A1
- Authority
- CA
- Canada
- Prior art keywords
- polymer
- die
- profile
- temperature
- solid state
- 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.)
- Abandoned
Links
- 229920000642 polymer Polymers 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000008569 process Effects 0.000 title claims abstract description 29
- 238000001125 extrusion Methods 0.000 claims abstract description 61
- 239000007787 solid Substances 0.000 claims abstract description 25
- 239000002344 surface layer Substances 0.000 claims abstract description 13
- -1 polyethylene Polymers 0.000 claims description 29
- 238000002844 melting Methods 0.000 claims description 20
- 230000008018 melting Effects 0.000 claims description 20
- 239000004698 Polyethylene Substances 0.000 claims description 18
- 229920000573 polyethylene Polymers 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000010410 layer Substances 0.000 claims description 10
- 229920006126 semicrystalline polymer Polymers 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000000314 lubricant Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 229920001169 thermoplastic Polymers 0.000 description 9
- 239000012530 fluid Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 239000007858 starting material Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 206010061592 cardiac fibrillation Diseases 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002600 fibrillogenic effect Effects 0.000 description 2
- 238000000886 hydrostatic extrusion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 244000287680 Garcinia dulcis Species 0.000 description 1
- 239000004705 High-molecular-weight polyethylene Substances 0.000 description 1
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 241001208007 Procas Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53907690A | 1990-06-15 | 1990-06-15 | |
| US53888990A | 1990-06-15 | 1990-06-15 | |
| US538,889 | 1990-06-15 | ||
| US539,076 | 1990-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2044536A1 true CA2044536A1 (fr) | 1991-12-16 |
Family
ID=27065953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2044536 Abandoned CA2044536A1 (fr) | 1990-06-15 | 1991-06-13 | Procede d'extrusion de profiles en polymeres a surface lisse, sans defaut |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2044536A1 (fr) |
-
1991
- 1991-06-13 CA CA 2044536 patent/CA2044536A1/fr not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |