BR9900164A - Process for obtaining non-ferrous metal foundries by casting in green sand mold. - Google Patents

Process for obtaining non-ferrous metal foundries by casting in green sand mold.

Info

Publication number
BR9900164A
BR9900164A BR9900164-0A BR9900164A BR9900164A BR 9900164 A BR9900164 A BR 9900164A BR 9900164 A BR9900164 A BR 9900164A BR 9900164 A BR9900164 A BR 9900164A
Authority
BR
Brazil
Prior art keywords
molds
recesses
mold
casting
green sand
Prior art date
Application number
BR9900164-0A
Other languages
Portuguese (pt)
Inventor
Aguastin Lara Erana
Original Assignee
Loramendi Sa
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
Priority claimed from ES9800071A external-priority patent/ES2143391B1/en
Application filed by Loramendi Sa filed Critical Loramendi Sa
Publication of BR9900164A publication Critical patent/BR9900164A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C11/00—Moulding machines characterised by the relative arrangement of the parts of same
    • B22C11/10—Moulding machines characterised by the relative arrangement of the parts of same with one or more flasks forming part of the machine, from which only the sand moulds made by compacting are removed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/15—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D33/00—Equipment for handling moulds
    • B22D33/005—Transporting flaskless moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D47/00—Casting plants
    • B22D47/02—Casting plants for both moulding and casting

Abstract

Patente de Invenção:<B>"PROCESSO PARA A OBTENçãO DE FUNDIçõES DE METAL NãO-FERROSO POR FUNDIçãO EM MOLDE DE AREIA VERDE"<D>. O processo resume-se à secagem da cavidade (3) dos moldes de areia verde (1) nos quais metal derretido é fundido para a obtenção das respectivas fundições, no qual a secagem da dita cavidade (3) é feita antes da etapa de enchimento do molde a fim de eliminar a umidade e impedir que porosidades sejam formadas na fundição acabada. A fim de que a cavidade dos moldes (1) seja seca, os moldes são providos com recessos (2) no sentido de que ar quente possa ser aplicado através da cobertura de topo (4) de uma estação de secagem e que uma pressão negativa ou vácuo possa ser aplicado através de uma pia de fundo (6), o que resulta em um fluxo de ar quente que flui entre as cavidades (3) nos moldes (1), direcionado através dos recessos de molde (2), extraindo a umidade de tais moldes (1) e redirecionando a água extraída em direção à pia de fundo (6). Em uma modalidade diferente, os moldes (1')possuem recessos de saída (2'), recessos estes providos no setor da instalação na qual os próprios moldes (1') são transportados da câmara de moldagem para a estação de enchimento, os recessos de saída (2') sendo providos por meio das extremidades ou pontas perfuradoras (21) das respectivas hastes (20) que podem ser movidas para cima e para baixo.Invention Patent: <B> "PROCESS FOR OBTAINING NON-FERROUS METAL FOUNDRIES BY CASTING IN GREEN SAND MOLD" <D>. The process is limited to drying the cavity (3) of the green sand molds (1) in which molten metal is melted to obtain the respective foundries, in which the drying of said cavity (3) is done before the filling step of the mold in order to eliminate moisture and prevent porosities from forming in the finished casting. In order that the mold cavity (1) is dry, the molds are provided with recesses (2) in the sense that hot air can be applied through the top cover (4) of a drying station and that a negative pressure or vacuum can be applied through a bottom sink (6), which results in a flow of hot air flowing between the cavities (3) in the molds (1), directed through the mold recesses (2), extracting the moisture from such molds (1) and redirecting the extracted water towards the bottom sink (6). In a different embodiment, the molds (1 ') have outlet recesses (2'), which are provided in the installation sector in which the molds (1 ') themselves are transported from the molding chamber to the filling station, the recesses outlet (2 ') being provided by means of the perforating ends or tips (21) of the respective rods (20) that can be moved up and down.

BR9900164-0A 1998-01-16 1999-01-15 Process for obtaining non-ferrous metal foundries by casting in green sand mold. BR9900164A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9800071A ES2143391B1 (en) 1998-01-16 1998-01-16 PROCEDURE FOR OBTAINING NON-IRON METAL PIECES THROUGH CASTING IN GREEN SAND MOLDS.
ES009802242A ES2156508B1 (en) 1998-01-16 1998-10-26 "PROCEDURE FOR OBTAINING NON-FERREAL METAL PARTS BY COLADA IN GREEN SAND MOLDS".

Publications (1)

Publication Number Publication Date
BR9900164A true BR9900164A (en) 2000-01-18

Family

ID=26155116

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9900164-0A BR9900164A (en) 1998-01-16 1999-01-15 Process for obtaining non-ferrous metal foundries by casting in green sand mold.

Country Status (5)

Country Link
JP (1) JP3103345B2 (en)
KR (1) KR19990067941A (en)
CN (1) CN1227777A (en)
BR (1) BR9900164A (en)
ES (1) ES2156508B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102211140A (en) * 2011-05-13 2011-10-12 无锡小天鹅精密铸造有限公司 Casting mold for molding fine-deep hole and resin sand molding method thereof
CN102218505B (en) * 2011-07-08 2013-02-20 嘉禾县众合铸业有限公司 Precise casting technology for green sand vacuum sealing model
CN103028696A (en) * 2011-09-28 2013-04-10 通用汽车环球科技运作有限责任公司 Method for drilling in casting object
CN104057062B (en) * 2012-08-27 2016-01-20 济南铸造锻压机械研究所有限公司 The method of sand mold low pressure casting shutoff gating apparatus and sand mold low pressure casting
CN103934435B (en) * 2014-05-19 2017-01-04 海门市沪海有色铸造有限公司 Method for solving problem of hot spot generated at wall thickness of aluminum alloy casting by using chilling coating and dark air hole in matched mode
JP6406617B2 (en) * 2015-01-21 2018-10-17 日産自動車株式会社 Low pressure casting method and low pressure casting apparatus
CN112548034A (en) * 2021-01-07 2021-03-26 山东理工大学 Casting sand mold, process and sand mold water content control system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470651A1 (en) * 1979-11-28 1981-06-12 Merrien Pierre METHOD AND DEVICE FOR AUTOMATING A HOT AIR DRYING CYCLE OF SAND MOLDS
US4620584A (en) * 1985-05-24 1986-11-04 Witt Raymond H Green sand mold filling system
CN1099927C (en) * 1995-09-08 2003-01-29 新东工业株式会社 Casting equipment

Also Published As

Publication number Publication date
KR19990067941A (en) 1999-08-25
JPH11285781A (en) 1999-10-19
CN1227777A (en) 1999-09-08
ES2156508A1 (en) 2001-06-16
JP3103345B2 (en) 2000-10-30
ES2156508B1 (en) 2002-02-01

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired