JPS6258293B2 - - Google Patents
Info
- Publication number
- JPS6258293B2 JPS6258293B2 JP55168364A JP16836480A JPS6258293B2 JP S6258293 B2 JPS6258293 B2 JP S6258293B2 JP 55168364 A JP55168364 A JP 55168364A JP 16836480 A JP16836480 A JP 16836480A JP S6258293 B2 JPS6258293 B2 JP S6258293B2
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- pressure
- resin
- screw
- molded product
- 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
- 229920005989 resin Polymers 0.000 claims description 29
- 239000011347 resin Substances 0.000 claims description 29
- 239000004604 Blowing Agent Substances 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 9
- 239000004088 foaming agent Substances 0.000 claims description 6
- 229920005992 thermoplastic resin Polymers 0.000 claims description 6
- 238000000034 method Methods 0.000 description 9
- 239000012778 molding material Substances 0.000 description 8
- 238000000465 moulding Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 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
- 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
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55168364A JPS5791241A (en) | 1980-11-28 | 1980-11-28 | Injection molding method of thick article |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55168364A JPS5791241A (en) | 1980-11-28 | 1980-11-28 | Injection molding method of thick article |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5791241A JPS5791241A (en) | 1982-06-07 |
JPS6258293B2 true JPS6258293B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-12-04 |
Family
ID=15866708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55168364A Granted JPS5791241A (en) | 1980-11-28 | 1980-11-28 | Injection molding method of thick article |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5791241A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992013699A1 (fr) * | 1991-01-30 | 1992-08-20 | Asahi Kasei Kogyo Kabushiki Kaisha | Moule de moulage par injection-soufflage, procede de moulage par soufflage et moule metallique |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3029622B2 (ja) * | 1988-04-08 | 2000-04-04 | アンドレアス シュティール | 可搬式パワーチェーンソーの湾曲グリップ |
DE3913109C5 (de) * | 1989-04-21 | 2010-03-18 | Ferromatik Milacron Maschinenbau Gmbh | Verfahren zum Spritzgießen fluidgefüllter Kunststoffkörper und Vorrichtung zur Durchführung des Verfahrens |
US5139714A (en) * | 1991-06-03 | 1992-08-18 | Siebolt Hettinga | Process for injection molding a hollow plastic article |
JP2001198942A (ja) * | 2000-01-24 | 2001-07-24 | Sumitomo Heavy Ind Ltd | 発泡成形品の成形方法及び射出成形機 |
-
1980
- 1980-11-28 JP JP55168364A patent/JPS5791241A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992013699A1 (fr) * | 1991-01-30 | 1992-08-20 | Asahi Kasei Kogyo Kabushiki Kaisha | Moule de moulage par injection-soufflage, procede de moulage par soufflage et moule metallique |
Also Published As
Publication number | Publication date |
---|---|
JPS5791241A (en) | 1982-06-07 |