JPS6127172B2 - - Google Patents
Info
- Publication number
- JPS6127172B2 JPS6127172B2 JP56092565A JP9256581A JPS6127172B2 JP S6127172 B2 JPS6127172 B2 JP S6127172B2 JP 56092565 A JP56092565 A JP 56092565A JP 9256581 A JP9256581 A JP 9256581A JP S6127172 B2 JPS6127172 B2 JP S6127172B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- blowing agent
- kneading
- section
- screw
- 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
- 239000004604 Blowing Agent Substances 0.000 claims description 19
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 14
- 238000004898 kneading Methods 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000004088 foaming agent Substances 0.000 claims description 7
- 229920005992 thermoplastic resin Polymers 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000012212 insulator Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008258 liquid foam Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/56—Screws having grooves or cavities other than the thread or the channel
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56092565A JPS57207031A (en) | 1981-06-16 | 1981-06-16 | Extruder for thermoplastic resin highly foamed body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56092565A JPS57207031A (en) | 1981-06-16 | 1981-06-16 | Extruder for thermoplastic resin highly foamed body |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57207031A JPS57207031A (en) | 1982-12-18 |
JPS6127172B2 true JPS6127172B2 (enrdf_load_stackoverflow) | 1986-06-24 |
Family
ID=14057940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56092565A Granted JPS57207031A (en) | 1981-06-16 | 1981-06-16 | Extruder for thermoplastic resin highly foamed body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57207031A (enrdf_load_stackoverflow) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0620587Y2 (ja) * | 1987-10-24 | 1994-06-01 | 株式会社石中鉄工所 | 混練用回転スクリュ |
JP5456430B2 (ja) * | 2009-10-16 | 2014-03-26 | スクリュー精機株式会社 | 成形機用スクリュー |
JP5504201B2 (ja) * | 2011-04-04 | 2014-05-28 | 株式会社日本製鋼所 | スクリュピース構造 |
-
1981
- 1981-06-16 JP JP56092565A patent/JPS57207031A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57207031A (en) | 1982-12-18 |
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