JPS57181834A - Method and apparatus for molding synthetic resin foam - Google Patents
Method and apparatus for molding synthetic resin foamInfo
- Publication number
- JPS57181834A JPS57181834A JP56067476A JP6747681A JPS57181834A JP S57181834 A JPS57181834 A JP S57181834A JP 56067476 A JP56067476 A JP 56067476A JP 6747681 A JP6747681 A JP 6747681A JP S57181834 A JPS57181834 A JP S57181834A
- Authority
- JP
- Japan
- Prior art keywords
- molded object
- steam
- mold
- water
- torr
- 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.)
- Granted
Links
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
- 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
Landscapes
- Molding Of Porous Articles (AREA)
Abstract
PURPOSE:To omit a drying process following a mold release, by evacuating the inside of the mold by a stabilizing process after steam supply, evaporating water in a molded object and drying the molded objected. CONSTITUTION:After the raw material bead in a mold is foamed and fusion- bonded by supply of steam, the molds 1, 1' and a molded object are cooled by cooling water and air, then the inside of chambers 4, 4' and a pressure reducing apparatus 16 are connected by opening only the valves 21, 21' when the molded object is cooled to a certain temperature. If the pressure of the inside of chambers 4, 4' is lowered below 600 Torr, preferably below 100 Torr, condensed water from steam for foaming and cooling water or water contained in the molded object are evaporated at a relatively low temperature due to a reduced pressure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56067476A JPS57181834A (en) | 1981-05-01 | 1981-05-01 | Method and apparatus for molding synthetic resin foam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56067476A JPS57181834A (en) | 1981-05-01 | 1981-05-01 | Method and apparatus for molding synthetic resin foam |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57181834A true JPS57181834A (en) | 1982-11-09 |
JPS6145941B2 JPS6145941B2 (en) | 1986-10-11 |
Family
ID=13346049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56067476A Granted JPS57181834A (en) | 1981-05-01 | 1981-05-01 | Method and apparatus for molding synthetic resin foam |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57181834A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62150128U (en) * | 1986-03-14 | 1987-09-22 | ||
JPS63276530A (en) * | 1987-03-12 | 1988-11-14 | Kanegafuchi Chem Ind Co Ltd | Foaming method for thermoplastic synthetic resin block |
JPH01148534A (en) * | 1987-12-07 | 1989-06-09 | Toyo Mach & Metal Co Ltd | Foam molding device |
JPH01148533A (en) * | 1987-12-07 | 1989-06-09 | Toyo Mach & Metal Co Ltd | Foam molding device |
JP2011509198A (en) * | 2008-01-12 | 2011-03-24 | ベール ゲーエムベーハー | Method for producing molded product made of foamed synthetic resin and apparatus for carrying out this method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55109633A (en) * | 1979-02-16 | 1980-08-23 | Sekisui Plastics Co Ltd | Method of foam-shaping |
JPS55128438A (en) * | 1979-03-28 | 1980-10-04 | Badische Yuka Co Ltd | Cooling method and device fit for forming foamed synthetic resin |
-
1981
- 1981-05-01 JP JP56067476A patent/JPS57181834A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55109633A (en) * | 1979-02-16 | 1980-08-23 | Sekisui Plastics Co Ltd | Method of foam-shaping |
JPS55128438A (en) * | 1979-03-28 | 1980-10-04 | Badische Yuka Co Ltd | Cooling method and device fit for forming foamed synthetic resin |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62150128U (en) * | 1986-03-14 | 1987-09-22 | ||
JPS63276530A (en) * | 1987-03-12 | 1988-11-14 | Kanegafuchi Chem Ind Co Ltd | Foaming method for thermoplastic synthetic resin block |
JPH01148534A (en) * | 1987-12-07 | 1989-06-09 | Toyo Mach & Metal Co Ltd | Foam molding device |
JPH01148533A (en) * | 1987-12-07 | 1989-06-09 | Toyo Mach & Metal Co Ltd | Foam molding device |
JP2011509198A (en) * | 2008-01-12 | 2011-03-24 | ベール ゲーエムベーハー | Method for producing molded product made of foamed synthetic resin and apparatus for carrying out this method |
Also Published As
Publication number | Publication date |
---|---|
JPS6145941B2 (en) | 1986-10-11 |
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