FR2260433B2 - - Google Patents
Info
- Publication number
- FR2260433B2 FR2260433B2 FR7404327A FR7404327A FR2260433B2 FR 2260433 B2 FR2260433 B2 FR 2260433B2 FR 7404327 A FR7404327 A FR 7404327A FR 7404327 A FR7404327 A FR 7404327A FR 2260433 B2 FR2260433 B2 FR 2260433B2
- Authority
- FR
- France
- 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
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- 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
- B29C33/52—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 soluble or fusible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
- B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
- B28B7/186—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article for plates, panels or similar sheet- or disc-shaped objects, also flat oblong moulded articles with lateral openings, e.g. panels with openings for doors or windows, grated girders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
- B28B7/342—Moulds, cores, or mandrels of special material, e.g. destructible materials which are at least partially destroyed, e.g. broken, molten, before demoulding; Moulding surfaces or spaces shaped by, or in, the ground, or sand or soil, whether bound or not; Cores consisting at least mainly of sand or soil, whether bound or not
-
- 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
- B29C33/52—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 soluble or fusible
- B29C2033/525—Cores made of frozen liquids, e.g. ice
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Floor Finish (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7404327A FR2260433A2 (en) | 1974-02-08 | 1974-02-08 | Method of casting hollow blocks with meltable cores - uses balls, granules etc. in cores to reduce liquid content |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7404327A FR2260433A2 (en) | 1974-02-08 | 1974-02-08 | Method of casting hollow blocks with meltable cores - uses balls, granules etc. in cores to reduce liquid content |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2260433A2 FR2260433A2 (en) | 1975-09-05 |
FR2260433B2 true FR2260433B2 (de) | 1976-11-26 |
Family
ID=9134694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7404327A Granted FR2260433A2 (en) | 1974-02-08 | 1974-02-08 | Method of casting hollow blocks with meltable cores - uses balls, granules etc. in cores to reduce liquid content |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2260433A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4743481A (en) * | 1986-11-26 | 1988-05-10 | Flex Technologies, Inc. | Molding process for articles having an irregular shaped internal passage |
FR2634413B1 (fr) * | 1988-07-21 | 1990-11-16 | Peugeot | Procede de realisation par moulage d'une piece creuse en matiere plastique |
GB2267454A (en) * | 1992-04-24 | 1993-12-08 | Programme 3 Patent Holdings | Forming hollow articles by using ice cores |
-
1974
- 1974-02-08 FR FR7404327A patent/FR2260433A2/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2260433A2 (en) | 1975-09-05 |