FR2397246A1 - MOLDING PROCESS AND VACUUM FORM MOLD - Google Patents

MOLDING PROCESS AND VACUUM FORM MOLD

Info

Publication number
FR2397246A1
FR2397246A1 FR7801755A FR7801755A FR2397246A1 FR 2397246 A1 FR2397246 A1 FR 2397246A1 FR 7801755 A FR7801755 A FR 7801755A FR 7801755 A FR7801755 A FR 7801755A FR 2397246 A1 FR2397246 A1 FR 2397246A1
Authority
FR
France
Prior art keywords
weight
mold
molten metal
channel
molding process
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.)
Granted
Application number
FR7801755A
Other languages
French (fr)
Other versions
FR2397246B1 (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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of FR2397246A1 publication Critical patent/FR2397246A1/en
Application granted granted Critical
Publication of FR2397246B1 publication Critical patent/FR2397246B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/03—Sand moulds or like moulds for shaped castings formed by vacuum-sealed moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/088—Feeder heads

Abstract

Procédé de moulage utilisant un moule formé sous vide et comportant un canal pour masselotte, ainsi que le moule utilisé pour la mise en oeuvre du procédé. Un moule selon l'invention est caractérisé en ce que le canal pour masselotte 10 comporte un trou d'évent 12 et un élément 11 en saillie intérieure, dirigé vers le bas et situé au-dessous dû niveau atteint par le métal en fusion après la coulée. En raison du contact entre le métal en fusion et l'élément en saillie, la matière réfractaire du moule est saturée thermiquement autour du canal pour masselotte, ce qui tend à retarder la solidification du métal de la masselotte, cela provoquant une pression intérieure dans la matière réfractaire du moule en favorisant ainsi l'alimentation en métal en fusion à partir de la masselotte à la pièce moulée pour compenser le retrait.Molding process using a mold formed under vacuum and comprising a channel for a weight, as well as the mold used for carrying out the process. A mold according to the invention is characterized in that the feeder channel 10 has a vent hole 12 and an interior projecting element 11, directed downwards and located below the level reached by the molten metal after the casting. Due to the contact between the molten metal and the protruding member, the refractory material of the mold is thermally saturated around the weight channel, which tends to delay the solidification of the weight of the metal, causing internal pressure in the weight. refractory material from the mold thereby promoting the supply of molten metal from the weight to the molded part to compensate for shrinkage.

FR7801755A 1977-07-13 1978-01-23 MOLDING PROCESS AND VACUUM FORM MOLD Granted FR2397246A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8303277A JPS5419422A (en) 1977-07-13 1977-07-13 Casting method using reduceddpressure mold having blind feeder

Publications (2)

Publication Number Publication Date
FR2397246A1 true FR2397246A1 (en) 1979-02-09
FR2397246B1 FR2397246B1 (en) 1981-12-04

Family

ID=13790879

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7801755A Granted FR2397246A1 (en) 1977-07-13 1978-01-23 MOLDING PROCESS AND VACUUM FORM MOLD

Country Status (14)

Country Link
JP (1) JPS5419422A (en)
AT (1) AT357282B (en)
BE (1) BE862744A (en)
CH (1) CH627671A5 (en)
DE (1) DE2802103A1 (en)
DK (1) DK32678A (en)
FI (1) FI63531C (en)
FR (1) FR2397246A1 (en)
GB (1) GB1594270A (en)
IT (1) IT1090298B (en)
NL (1) NL7800104A (en)
NO (1) NO774391L (en)
SE (1) SE7800546L (en)
TR (1) TR20369A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988006501A1 (en) * 1987-03-04 1988-09-07 Eisenwerk Brühl GmbH Process and device for casting moulded metal parts
US5295438A (en) * 1991-12-03 1994-03-22 Plessey Tellumat South Africa Limited Single initiate command system and method for a multi-shot blast

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5433223A (en) * 1977-08-20 1979-03-10 Sintokogio Ltd Method of molding blind feeder in reducedd pressure molding and airrpassing parts for molding blind feeder portion
DE2929397C2 (en) * 1979-07-20 1985-08-08 Klöckner-Humboldt-Deutz AG, 5000 Köln Method for separating a refractory molded mask from a foundry pattern
CN101693282B (en) * 2009-10-22 2011-06-29 南阳市汇森精密仪器铸造有限公司 Method for producing voltage-bearing aluminum alloy tank body of ultra-high voltage switch by V-process
CN102407290A (en) * 2011-12-01 2012-04-11 中核苏阀横店机械有限公司 Blind riser with atmospheric mud core
DE102014201900B4 (en) * 2014-02-03 2022-06-02 Volkswagen Aktiengesellschaft Mold and valve assembly for a mold
CN105499496A (en) * 2015-12-28 2016-04-20 济南圣泉集团股份有限公司 Feeding and exhausting riser bush for V-method casting
CN105598375B (en) * 2016-01-11 2018-08-21 共享装备股份有限公司 Casting outlet system
CN106077517B (en) * 2016-07-27 2017-09-26 三鑫重工机械有限公司 A kind of casting method of high-speed steel roll
CN113351828A (en) * 2021-05-24 2021-09-07 贵州安吉航空精密铸造有限责任公司 Investment casting forming process for embedded ceramic core
CN113732245B (en) * 2021-07-27 2023-05-23 石钢京诚装备技术有限公司 Production method of large hydropower thrust head

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1504965A (en) * 1965-12-16 1967-12-08 Gruenzweig & Hartmann Removable part lost, in particular the spherical weight model in expanded synthetic material
FR1592577A (en) * 1967-10-26 1970-05-19

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5540338B2 (en) * 1974-01-23 1980-10-17

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1504965A (en) * 1965-12-16 1967-12-08 Gruenzweig & Hartmann Removable part lost, in particular the spherical weight model in expanded synthetic material
FR1592577A (en) * 1967-10-26 1970-05-19

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988006501A1 (en) * 1987-03-04 1988-09-07 Eisenwerk Brühl GmbH Process and device for casting moulded metal parts
US5295438A (en) * 1991-12-03 1994-03-22 Plessey Tellumat South Africa Limited Single initiate command system and method for a multi-shot blast

Also Published As

Publication number Publication date
FI63531C (en) 1983-07-11
DK32678A (en) 1979-01-14
AT357282B (en) 1980-06-25
CH627671A5 (en) 1982-01-29
SE7800546L (en) 1979-01-14
TR20369A (en) 1981-05-04
FR2397246B1 (en) 1981-12-04
JPS5419422A (en) 1979-02-14
ATA42578A (en) 1979-11-15
BE862744A (en) 1978-05-02
JPS6110215B2 (en) 1986-03-28
FI63531B (en) 1983-03-31
DE2802103A1 (en) 1979-01-25
GB1594270A (en) 1981-07-30
FI780081A (en) 1979-01-14
IT1090298B (en) 1985-06-26
NL7800104A (en) 1979-01-16
NO774391L (en) 1979-01-16

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Legal Events

Date Code Title Description
DL Decision of the director general to leave to make available licences of right
ST Notification of lapse