FR2618720B1 - Moule de preparation de pieces en polystyrene, notamment de modeles pour procede de moulage a mousse perdue - Google Patents
Moule de preparation de pieces en polystyrene, notamment de modeles pour procede de moulage a mousse perdueInfo
- Publication number
- FR2618720B1 FR2618720B1 FR8710764A FR8710764A FR2618720B1 FR 2618720 B1 FR2618720 B1 FR 2618720B1 FR 8710764 A FR8710764 A FR 8710764A FR 8710764 A FR8710764 A FR 8710764A FR 2618720 B1 FR2618720 B1 FR 2618720B1
- Authority
- FR
- France
- Prior art keywords
- mold
- molding process
- foam molding
- preparing polystyrene
- loss foam
- 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
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
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3814—Porous moulds
-
- 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 |
---|---|---|---|
FR8710764A FR2618720B1 (fr) | 1987-07-29 | 1987-07-29 | Moule de preparation de pieces en polystyrene, notamment de modeles pour procede de moulage a mousse perdue |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8710764A FR2618720B1 (fr) | 1987-07-29 | 1987-07-29 | Moule de preparation de pieces en polystyrene, notamment de modeles pour procede de moulage a mousse perdue |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2618720A1 FR2618720A1 (fr) | 1989-02-03 |
FR2618720B1 true FR2618720B1 (fr) | 1989-11-03 |
Family
ID=9353690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8710764A Expired FR2618720B1 (fr) | 1987-07-29 | 1987-07-29 | Moule de preparation de pieces en polystyrene, notamment de modeles pour procede de moulage a mousse perdue |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2618720B1 (fr) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1274755A (fr) * | 1960-10-17 | 1961-10-27 | Wanner Ag | Procédé de conformation de matières à façonner ou à faire mousser dans des moules |
DE1211980B (de) * | 1963-10-02 | 1966-03-03 | Hoeganaes Ab | Verfahren zur Herstellung von Silikasteinen |
DE1778819A1 (de) * | 1968-06-08 | 1972-03-23 | Gruenzweig & Hartmann | Schaeumform zum Aufschaeumen von Kunstharzmassen |
DE3330826A1 (de) * | 1983-08-26 | 1985-03-14 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von schaumstoff-formkoerpern aus polyolefinen |
-
1987
- 1987-07-29 FR FR8710764A patent/FR2618720B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2618720A1 (fr) | 1989-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |