JPS6324822B2 - - Google Patents
Info
- Publication number
- JPS6324822B2 JPS6324822B2 JP58029895A JP2989583A JPS6324822B2 JP S6324822 B2 JPS6324822 B2 JP S6324822B2 JP 58029895 A JP58029895 A JP 58029895A JP 2989583 A JP2989583 A JP 2989583A JP S6324822 B2 JPS6324822 B2 JP S6324822B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- tip
- feeder
- piston
- eject pin
- 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
- 239000011162 core material Substances 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- -1 polyethylene Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin 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
- B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
- B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/442—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with mechanical ejector or drive means therefor
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3044—Bumpers
Landscapes
- Molding Of Porous Articles (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58029895A JPS59155017A (ja) | 1983-02-24 | 1983-02-24 | 型内成型体の製造法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58029895A JPS59155017A (ja) | 1983-02-24 | 1983-02-24 | 型内成型体の製造法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59155017A JPS59155017A (ja) | 1984-09-04 |
JPS6324822B2 true JPS6324822B2 (da) | 1988-05-23 |
Family
ID=12288705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58029895A Granted JPS59155017A (ja) | 1983-02-24 | 1983-02-24 | 型内成型体の製造法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59155017A (da) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5894899B2 (ja) * | 2012-09-28 | 2016-03-30 | 積水化成品工業株式会社 | 発泡成形体 |
-
1983
- 1983-02-24 JP JP58029895A patent/JPS59155017A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59155017A (ja) | 1984-09-04 |
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