JPH0417B2 - - Google Patents
Info
- Publication number
- JPH0417B2 JPH0417B2 JP59252440A JP25244084A JPH0417B2 JP H0417 B2 JPH0417 B2 JP H0417B2 JP 59252440 A JP59252440 A JP 59252440A JP 25244084 A JP25244084 A JP 25244084A JP H0417 B2 JPH0417 B2 JP H0417B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- expanded particles
- particles
- density
- cavity
- 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
- 239000002245 particle Substances 0.000 claims description 46
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 40
- 239000006260 foam Substances 0.000 claims description 20
- 230000035939 shock Effects 0.000 claims description 17
- 238000000465 moulding Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 12
- 210000001061 forehead Anatomy 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 4
- 210000003128 head Anatomy 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 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
- B29C44/3415—Heating or cooling
- B29C44/3426—Heating by introducing steam in the mould
-
- 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
- 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
- B29C44/58—Moulds
- B29C44/585—Moulds with adjustable size of the mould cavity
Landscapes
- Helmets And Other Head Coverings (AREA)
- Molding Of Porous Articles (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59252440A JPS61130026A (ja) | 1984-11-29 | 1984-11-29 | 異種層をもつフオ−ムスチレンの成形方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59252440A JPS61130026A (ja) | 1984-11-29 | 1984-11-29 | 異種層をもつフオ−ムスチレンの成形方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61130026A JPS61130026A (ja) | 1986-06-17 |
| JPH0417B2 true JPH0417B2 (fr) | 1992-01-06 |
Family
ID=17237399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59252440A Granted JPS61130026A (ja) | 1984-11-29 | 1984-11-29 | 異種層をもつフオ−ムスチレンの成形方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61130026A (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013075369A (ja) * | 2011-09-29 | 2013-04-25 | Sekisui Plastics Co Ltd | 発泡成形体の製造方法 |
| JP2013248847A (ja) * | 2012-06-04 | 2013-12-12 | Toyo Cork Kk | 複合発泡成型体の製造方法 |
| JP6722428B2 (ja) * | 2015-07-02 | 2020-07-15 | 東北資材工業株式会社 | 発泡樹脂成形体 |
| JP6080275B1 (ja) | 2015-08-12 | 2017-02-15 | 株式会社ジェイエスピー | 車両用シート芯材、および車両用シート部材 |
| DE102020113838A1 (de) * | 2020-05-22 | 2021-11-25 | Siegfried Hofmann Gmbh | Formwerkzeug zur Verarbeitung von expandierbaren oder expandierten Kunststoffpartikeln |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5476667A (en) * | 1977-11-30 | 1979-06-19 | Sekisui Plastics | Coomolding method and apparatus by different raw material |
-
1984
- 1984-11-29 JP JP59252440A patent/JPS61130026A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5476667A (en) * | 1977-11-30 | 1979-06-19 | Sekisui Plastics | Coomolding method and apparatus by different raw material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61130026A (ja) | 1986-06-17 |
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