FR2423314A2 - PROCESS FOR OBTAINING HIGH PRECISION MOLDED PARTS BY FILTRATION IN FIBROUS MATERIALS CONTAINING METAL INSERTS - Google Patents

PROCESS FOR OBTAINING HIGH PRECISION MOLDED PARTS BY FILTRATION IN FIBROUS MATERIALS CONTAINING METAL INSERTS

Info

Publication number
FR2423314A2
FR2423314A2 FR7811971A FR7811971A FR2423314A2 FR 2423314 A2 FR2423314 A2 FR 2423314A2 FR 7811971 A FR7811971 A FR 7811971A FR 7811971 A FR7811971 A FR 7811971A FR 2423314 A2 FR2423314 A2 FR 2423314A2
Authority
FR
France
Prior art keywords
molded parts
high precision
fibrous materials
containing metal
obtaining high
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.)
Pending
Application number
FR7811971A
Other languages
French (fr)
Inventor
Jean Baujon
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.)
Societe Europeenne des Produits Refractaires SAS
Original Assignee
Societe Europeenne des Produits Refractaires SAS
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 Societe Europeenne des Produits Refractaires SAS filed Critical Societe Europeenne des Produits Refractaires SAS
Priority to FR7811971A priority Critical patent/FR2423314A2/en
Priority to GB7912486A priority patent/GB2018669B/en
Priority to IT21773/79A priority patent/IT1166739B/en
Priority to BE0/194637A priority patent/BE875620R/en
Priority to CS792615A priority patent/CS207786B2/en
Publication of FR2423314A2 publication Critical patent/FR2423314A2/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • 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
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • 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
    • B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/46—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for humidifying or dehumidifying

Abstract

Procédé d'obtention par filtration de pièces moulées de haute précision en matériaux fibreux contenant des inserts métalliques disposés avec précision dans ces pièces. Selon l'invention, on positionne l'insert métallique dans un cadre. On place le cadre dans un moule dont la perméabilité de la surface filtrante est plus importante dans les zones de grande précision, on immerge l'ensemble dans une suspension fibreuse, on filtre le milieu liquide dans la suspension de façon à former une première couche de fibres sur l'insert, on sépare le cadre des inserts et du moule, on immerge à nouveau l'ensemble insert-moule dans la suspension et on filtre à nouveau le milieu liquide. Application à la fabrication de dalles et tubes équipés de résistances électriques noyées et destinés au chauffage de parois de four ou au maintien en température par immersion de bains métalliques.Process for obtaining high-precision molded parts made of fibrous materials by filtration containing metal inserts precisely placed in these parts. According to the invention, the metal insert is positioned in a frame. The frame is placed in a mold, the permeability of the filtering surface of which is greater in areas of high precision, the whole is immersed in a fibrous suspension, the liquid medium is filtered in the suspension so as to form a first layer of fibers on the insert, the frame is separated from the inserts and from the mold, the insert-mold assembly is again immersed in the suspension and the liquid medium is filtered again. Application to the manufacture of slabs and tubes equipped with embedded electrical resistances and intended for heating furnace walls or for maintaining temperature by immersion of metal baths.

FR7811971A 1978-04-17 1978-04-17 PROCESS FOR OBTAINING HIGH PRECISION MOLDED PARTS BY FILTRATION IN FIBROUS MATERIALS CONTAINING METAL INSERTS Pending FR2423314A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7811971A FR2423314A2 (en) 1978-04-17 1978-04-17 PROCESS FOR OBTAINING HIGH PRECISION MOLDED PARTS BY FILTRATION IN FIBROUS MATERIALS CONTAINING METAL INSERTS
GB7912486A GB2018669B (en) 1978-04-17 1979-04-10 Method of manufacturing a moulded article of fibrous material containing a metal insert
IT21773/79A IT1166739B (en) 1978-04-17 1979-04-11 PROCEDURE FOR OBTAINING FILTERING OF HIGH PRECISION PRINTED PIECES IN FIBROUS MATERIALS CONTAINING METAL INSERTS
BE0/194637A BE875620R (en) 1978-04-17 1979-04-17 PROCESS AND APPARATUS FOR OBTAINING HIGH-PRECISION MOLDED PARTS IN FIBROUS MATERIALS
CS792615A CS207786B2 (en) 1978-04-17 1979-04-17 Filtration method of making the castings from the fibrous materials containing metal components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7811971A FR2423314A2 (en) 1978-04-17 1978-04-17 PROCESS FOR OBTAINING HIGH PRECISION MOLDED PARTS BY FILTRATION IN FIBROUS MATERIALS CONTAINING METAL INSERTS

Publications (1)

Publication Number Publication Date
FR2423314A2 true FR2423314A2 (en) 1979-11-16

Family

ID=9207474

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811971A Pending FR2423314A2 (en) 1978-04-17 1978-04-17 PROCESS FOR OBTAINING HIGH PRECISION MOLDED PARTS BY FILTRATION IN FIBROUS MATERIALS CONTAINING METAL INSERTS

Country Status (5)

Country Link
BE (1) BE875620R (en)
CS (1) CS207786B2 (en)
FR (1) FR2423314A2 (en)
GB (1) GB2018669B (en)
IT (1) IT1166739B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58501316A (en) * 1981-08-12 1983-08-11 ユナイテッド・テクノロジ−ズ・コ−ポレイション Ceramic die manufacturing equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500444A (en) * 1968-01-16 1970-03-10 Johns Manville Electrical heating unit with an insulating refractory support
US3978183A (en) * 1974-06-24 1976-08-31 Sybron Corporation Method of filter molding and electrical heating unit made thereby

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500444A (en) * 1968-01-16 1970-03-10 Johns Manville Electrical heating unit with an insulating refractory support
US3978183A (en) * 1974-06-24 1976-08-31 Sybron Corporation Method of filter molding and electrical heating unit made thereby

Also Published As

Publication number Publication date
BE875620R (en) 1979-08-16
CS207786B2 (en) 1981-08-31
GB2018669B (en) 1982-06-03
IT7921773A0 (en) 1979-04-11
GB2018669A (en) 1979-10-24
IT1166739B (en) 1987-05-06

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