JPH0361577B2 - - Google Patents
Info
- Publication number
- JPH0361577B2 JPH0361577B2 JP58077827A JP7782783A JPH0361577B2 JP H0361577 B2 JPH0361577 B2 JP H0361577B2 JP 58077827 A JP58077827 A JP 58077827A JP 7782783 A JP7782783 A JP 7782783A JP H0361577 B2 JPH0361577 B2 JP H0361577B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molded product
- core
- cavity
- steam chamber
- 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 - Lifetime
Links
- 238000000465 moulding Methods 0.000 claims description 53
- 238000000034 method Methods 0.000 claims description 36
- 229920005989 resin Polymers 0.000 claims description 23
- 239000011347 resin Substances 0.000 claims description 23
- 229920001169 thermoplastic Polymers 0.000 claims description 22
- 239000004416 thermosoftening plastic Substances 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 12
- 239000006260 foam Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 8
- 229920005992 thermoplastic resin Polymers 0.000 claims description 5
- 238000005187 foaming Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims 1
- 239000012815 thermoplastic material Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000011800 void 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
- B29C44/44—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
- 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
- B29C44/3415—Heating or cooling
- B29C44/3426—Heating by introducing steam in the mould
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58077827A JPS59202823A (ja) | 1983-05-02 | 1983-05-02 | 熱可塑性発泡樹脂成形品の成形用金型における成形品の離型方法並びにその離型方法で用いられる成形用金型 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58077827A JPS59202823A (ja) | 1983-05-02 | 1983-05-02 | 熱可塑性発泡樹脂成形品の成形用金型における成形品の離型方法並びにその離型方法で用いられる成形用金型 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59202823A JPS59202823A (ja) | 1984-11-16 |
| JPH0361577B2 true JPH0361577B2 (enrdf_load_stackoverflow) | 1991-09-20 |
Family
ID=13644868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58077827A Granted JPS59202823A (ja) | 1983-05-02 | 1983-05-02 | 熱可塑性発泡樹脂成形品の成形用金型における成形品の離型方法並びにその離型方法で用いられる成形用金型 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59202823A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08194780A (ja) * | 1994-11-18 | 1996-07-30 | Ricoh Co Ltd | 特徴抽出方法 |
-
1983
- 1983-05-02 JP JP58077827A patent/JPS59202823A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59202823A (ja) | 1984-11-16 |
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