FR2433400A1 - METHOD AND DEVICE FOR INJECTION MOLDING OF CERAMIC MATERIALS - Google Patents

METHOD AND DEVICE FOR INJECTION MOLDING OF CERAMIC MATERIALS

Info

Publication number
FR2433400A1
FR2433400A1 FR7920759A FR7920759A FR2433400A1 FR 2433400 A1 FR2433400 A1 FR 2433400A1 FR 7920759 A FR7920759 A FR 7920759A FR 7920759 A FR7920759 A FR 7920759A FR 2433400 A1 FR2433400 A1 FR 2433400A1
Authority
FR
France
Prior art keywords
molding
mold
injection molding
parts
ceramic materials
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.)
Withdrawn
Application number
FR7920759A
Other languages
French (fr)
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.)
Demag Kunststofftechnik Zweigniederlassung der Demag AG
Original Assignee
Demag Kunststofftechnik Zweigniederlassung der Demag AG
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 Demag Kunststofftechnik Zweigniederlassung der Demag AG filed Critical Demag Kunststofftechnik Zweigniederlassung der Demag AG
Publication of FR2433400A1 publication Critical patent/FR2433400A1/en
Withdrawn legal-status Critical Current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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0058—Moulds, cores or mandrels with provisions concerning the elimination of superfluous material; Moulds with burr-removing means provided therein or carried thereby
    • 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
    • B28B1/24—Producing shaped prefabricated articles from the material by injection moulding

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

L'invention concerne l'industrie du moulage par injection. Un moule 1 comporte deux parties mobiles 2, 3 et une cavité de moulage 8. La dose de matière introduite dépasse le volume strictement nécessaire pour le moulage, et l'excès de matière est éjecté hors du moule par un effet de matriçage obtenu en rapprochant les parties de moule l'une contre l'autre, en position finale de moulage, après avoir fermé le canal d'entrée au moyen d'un obturateur 7, associé par exemple à une vis sans fin d'injection 6, mobile axialement. On exerce un effet de compression différenciée au sein de la matière malléable en cours de mise en forme, aux endroits de la cavité de moulage 8 correspondant aux zones de bordure 11, 11a, de la pièce moulée particulièrement sujettes à des risques d'irrégularites de retrait à la cuisson. Application au moulage de pièces en matière céramique.The invention relates to the injection molding industry. A mold 1 comprises two moving parts 2, 3 and a molding cavity 8. The dose of material introduced exceeds the volume strictly necessary for molding, and the excess material is ejected out of the mold by a stamping effect obtained by bringing together the mold parts against each other, in the final molding position, after having closed the inlet channel by means of a shutter 7, associated for example with an endless injection screw 6, movable axially. A differentiated compression effect is exerted within the malleable material being shaped, at the locations of the molding cavity 8 corresponding to the edge zones 11, 11a, of the molded part which is particularly subject to risks of irregularities in shrinkage during cooking. Application to the molding of ceramic parts.

FR7920759A 1978-08-17 1979-08-16 METHOD AND DEVICE FOR INJECTION MOLDING OF CERAMIC MATERIALS Withdrawn FR2433400A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782836096 DE2836096A1 (en) 1978-08-17 1978-08-17 METHOD AND DEVICE FOR PRODUCING CERAMIC MOLDINGS IN THE WAY OF INJECTION MOLDING

Publications (1)

Publication Number Publication Date
FR2433400A1 true FR2433400A1 (en) 1980-03-14

Family

ID=6047304

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7920759A Withdrawn FR2433400A1 (en) 1978-08-17 1979-08-16 METHOD AND DEVICE FOR INJECTION MOLDING OF CERAMIC MATERIALS

Country Status (3)

Country Link
DE (1) DE2836096A1 (en)
FR (1) FR2433400A1 (en)
GB (1) GB2030509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0440965A2 (en) * 1990-02-08 1991-08-14 Erich Netzsch GmbH & Co. Holding KG Process and apparatus for making bowl-shaped ceramic products

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009044730A1 (en) * 2007-10-05 2009-04-09 Ngk Insulators, Ltd. Shaping mold and method of shaping
SE533916C2 (en) * 2008-05-13 2011-03-01 Seco Tools Ab Form for injection molding of cutter tools having an air gap of controlled width and a method of making such cutters
DE102013201785B3 (en) 2013-02-04 2014-05-22 Lechler Gmbh Mold, useful for producing atomizing spray nozzles, comprises flow chamber, adjoining nozzles, flow chamber core mold part for defining inner wall of flow chamber, and nozzle core mold part for defining inner wall of adjoining nozzles
DE102017220409A1 (en) * 2017-11-15 2019-05-16 Robert Bosch Gmbh Sealing element for a sensor element of a sensor for detecting at least one property of a sample gas in a sample gas space and method for its production

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR520592A (en) * 1920-07-15 1921-06-28 Friedrich Brettschneider Process and mold for the press manufacture of stones molded into plastic pastes
US2627641A (en) * 1949-07-14 1953-02-10 Ram Inc Multiple gutter mold
FR1033602A (en) * 1951-01-20 1953-07-13 St Regis Paper Co Plastic molding method and apparatus
GB792351A (en) * 1954-12-27 1958-03-26 Shenango China Inc Dies for pressing green ceramic objects
GB1132209A (en) * 1965-11-12 1968-10-30 Hermann Ahrens Method and means for the manufacture of moulded blanks

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR520592A (en) * 1920-07-15 1921-06-28 Friedrich Brettschneider Process and mold for the press manufacture of stones molded into plastic pastes
US2627641A (en) * 1949-07-14 1953-02-10 Ram Inc Multiple gutter mold
FR1033602A (en) * 1951-01-20 1953-07-13 St Regis Paper Co Plastic molding method and apparatus
GB792351A (en) * 1954-12-27 1958-03-26 Shenango China Inc Dies for pressing green ceramic objects
GB1132209A (en) * 1965-11-12 1968-10-30 Hermann Ahrens Method and means for the manufacture of moulded blanks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0440965A2 (en) * 1990-02-08 1991-08-14 Erich Netzsch GmbH & Co. Holding KG Process and apparatus for making bowl-shaped ceramic products
EP0440965A3 (en) * 1990-02-08 1991-11-21 Erich Netzsch Gmbh & Co. Holding Kg Process and apparatus for making bowl-shaped ceramic products

Also Published As

Publication number Publication date
GB2030509A (en) 1980-04-10
DE2836096A1 (en) 1980-03-06

Similar Documents

Publication Publication Date Title
DE3063915D1 (en) Injection mould with high capacity sprue bushing
MY118885A (en) Molding method and apparatus
JP2004520984A5 (en)
JP2000084655A (en) Method for closing flow inlet after non-gravitational casting with non-ferrous alloy of green sand mold in continuous casting plant
FR2378626A1 (en) INJECTION MOLDING PROCESS OF PARTS IN PLASTIC MATERIAL
MX162626A (en) PROCEDURE AND DEVICE FOR STAMPING AND REMOVING THE MAZAROTA PART OF AN INJECTION CASTING TOOL
FR2433400A1 (en) METHOD AND DEVICE FOR INJECTION MOLDING OF CERAMIC MATERIALS
US4352388A (en) Die vent for mold cavities
JPS5577545A (en) Injection-compression molding method
JPS59146806A (en) Mold apparatus
JPH04327921A (en) Manufacture of resin molded product
DK0914238T3 (en) Method and apparatus for manufacturing movable elements for a plastic component
JP2007190871A (en) Molding method for injection-molded article and injection molding machine
JPH0136583Y2 (en)
US3840065A (en) Apparatus for forming a cast hinge
JPS57195683A (en) Manufacture of molded product having pattern on its surface
JPH05425A (en) Molding method
JPH0899333A (en) Two-layer injection molding device
FR2419806A1 (en) PRESSURE MOLDING PROCESS AND APPARATUS
KR920004588Y1 (en) Slide core
JPH06106307A (en) Method for sealing dummy bar head in continuous casting
JPS634488B2 (en)
JPS58222829A (en) Gate cut molding
JPH06344402A (en) Metal mold for injection compression molding
JPS5772831A (en) Device for preventing back flow of resin in mold

Legal Events

Date Code Title Description
ST Notification of lapse