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
Application number
FR7404327A
Other languages
French (fr)
Other versions
FR2260433A2 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR7404327A priority Critical patent/FR2260433A2/fr
Publication of FR2260433A2 publication Critical patent/FR2260433A2/fr
Application granted granted Critical
Publication of FR2260433B2 publication Critical patent/FR2260433B2/fr
Granted legal-status Critical Current

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
    • 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
    • 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)
FR7404327A 1974-02-08 1974-02-08 Method of casting hollow blocks with meltable cores - uses balls, granules etc. in cores to reduce liquid content Granted FR2260433A2 (en)

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 (ro) 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 (ro)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR2260433A2 (en) 1975-09-05

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