JPH031143B2 - - Google Patents
Info
- Publication number
- JPH031143B2 JPH031143B2 JP2745482A JP2745482A JPH031143B2 JP H031143 B2 JPH031143 B2 JP H031143B2 JP 2745482 A JP2745482 A JP 2745482A JP 2745482 A JP2745482 A JP 2745482A JP H031143 B2 JPH031143 B2 JP H031143B2
- Authority
- JP
- Japan
- Prior art keywords
- polyethylene
- mold
- core
- crosslinking agent
- layer
- 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
- 239000004698 Polyethylene Substances 0.000 claims description 38
- 229920000573 polyethylene Polymers 0.000 claims description 38
- -1 Polyethylene Polymers 0.000 claims description 37
- 239000003431 cross linking reagent Substances 0.000 claims description 21
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 15
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 23
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
- B29C61/06—Making preforms having internal stresses, e.g. plastic memory
- B29C61/08—Making preforms having internal stresses, e.g. plastic memory by stretching tubes
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- 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
- B29K2105/25—Solid
- B29K2105/253—Preform
Landscapes
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2745482A JPS58145412A (ja) | 1982-02-24 | 1982-02-24 | 熱収縮性ポリエチレンスリ−ブの製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2745482A JPS58145412A (ja) | 1982-02-24 | 1982-02-24 | 熱収縮性ポリエチレンスリ−ブの製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58145412A JPS58145412A (ja) | 1983-08-30 |
| JPH031143B2 true JPH031143B2 (de) | 1991-01-09 |
Family
ID=12221564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2745482A Granted JPS58145412A (ja) | 1982-02-24 | 1982-02-24 | 熱収縮性ポリエチレンスリ−ブの製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58145412A (de) |
-
1982
- 1982-02-24 JP JP2745482A patent/JPS58145412A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58145412A (ja) | 1983-08-30 |
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