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1. WO2016181177 - CASTING PROCESS AND SAND MOULD PROVIDED WITH AN INLET SYSTEM FOR PRODUCING AT LEAST PARTLY THIN WALLED ALUMINIUM CASTS WITH SAND MOULDING TECHNOLOGY BY MEANS OF GRAVITY CASTING

Publication Number WO/2016/181177
Publication Date 17.11.2016
International Application No. PCT/HU2016/050019
International Filing Date 12.05.2016
IPC
B22C 9/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
CFOUNDRY MOULDING
9Moulds or cores; Moulding processes
08Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
B22C 9/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
CFOUNDRY MOULDING
9Moulds or cores; Moulding processes
02Sand moulds or like moulds for shaped castings
B22D 21/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
21Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
B22D 25/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
25Special casting characterised by the nature of the product
02by its peculiarity of shape; of works of art
B22D 27/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
27Treating the metal in the mould while it is molten or ductile
04Influencing the temperature of the metal, e.g. by heating or cooling the mould
B22C 9/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
CFOUNDRY MOULDING
9Moulds or cores; Moulding processes
12Treating moulds or cores, e.g. drying, hardening
CPC
B22C 9/02
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
CFOUNDRY MOULDING
9Moulds or cores
02Sand moulds or like moulds for shaped castings
B22C 9/082
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
CFOUNDRY MOULDING
9Moulds or cores
08Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
082Sprues, pouring cups
B22C 9/12
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
CFOUNDRY MOULDING
9Moulds or cores
12Treating moulds or cores, e.g. drying, hardening
B22D 15/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
15Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
B22D 15/04
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
15Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
04Machines or apparatus for chill casting
B22D 21/007
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
21Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
002Castings of light metals
007with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
Applicants
  • ALU-ÖNTÖ KFT. [HU]/[HU]
Inventors
  • HAJAS, Gergely
Agents
  • KACSUKPATENT KFT.
Priority Data
P150023014.05.2015HU
Publication Language English (EN)
Filing Language Hungarian (HU)
Designated States
Title
(EN) CASTING PROCESS AND SAND MOULD PROVIDED WITH AN INLET SYSTEM FOR PRODUCING AT LEAST PARTLY THIN WALLED ALUMINIUM CASTS WITH SAND MOULDING TECHNOLOGY BY MEANS OF GRAVITY CASTING
(FR) PROCÉDÉ DE COULAGE ET MOULE EN SABLE POURVU D'UN SYSTÈME D'ADMISSION POUR PRODUIRE DES PIÈCES COULÉES EN ALUMINIUM À PAROIS AU MOINS PARTIELLEMENT MINCES AVEC LA TECHNOLOGIE DE MOULAGE AU SABLE AU MOYEN D'UN COULAGE PAR GRAVITÉ
Abstract
(EN)
The subject of the invention is a process for the production of at least partly thin-walled and aluminium castings with sand moulding technology by gravity casting, which allows producing casts with 100 times or favourably 200-400 times larger overall dimensions in case of 1-3 mm wall thickness. The main idea of the process is that sand mould containing mould cavity is provided, melt of aluminium content is produced, the melt is introduced into the mould cavity at several points through a gating system of narrowing cross section. A further subject of the invention is a sand mould fitted with a gating system to produce at least partly thin-walled castings with sand moulding technology, by gravity casting. The wall thickness of thin-walled segments is 1-3 mm and the largest dimension is more than a 100 but favourably at least 200-400 multiple of the wall thickness. The main idea behind the sand mould with a gating system is that it contains a mould cavity allowing the production of at least partly thin-walled castings, and is equipped with a gating system, which is composed of at least two sprues and one ingate to each having a porthole into the mould cavity and in liquid contact with the sprues.
(FR)
L'objet de l'invention est un procédé pour la production de pièces à parois au moins partiellement minces et en aluminium avec la technologie de moulage au sable au moyen d'un coulage par gravité, qui permet de produire des pièces coulées avec des dimensions globales 100 fois plus grandes ou de préférence 200 à 400 fois plus grandes dans le cas d'une épaisseur de paroi de 1 à 3 mm. L'idée principale du procédé est qu'un moule en sable contenant la cavité de moule est utilisé, un contenu de fonte d'aluminium est produit, la fonte est introduite dans la cavité de moule au niveau de plusieurs points à travers un système d'attaques de coulée ayant une coupe transversale se rétrécissant. Un autre objet de l'invention est un moule en sable équipé d'un système d'attaques de coulée afin de produire des pièces coulées à parois au moins partiellement minces avec une technologie de moulage au sable, au moyen d'un coulage par gravité. L'épaisseur de paroi des segments à paroi mince est de 1 à 3 mm et la plus grande dimension est supérieure à 100 fois, mais de préférence au moins 200 à 400 fois, l'épaisseur de la paroi. L'idée principale derrière le moule en sable avec un système d'attaques de coulée est qu'il contient une cavité de moule permettant la production de pièces coulées à parois au moins partiellement minces, et qu'il est équipé d'un système d'attaques de coulée, qui est composé d'au moins deux descentes de coulée et d'une amorce de coulée ayant chacune une lumière dans la cavité de moule et en contact liquide avec les descentes de coulée.
Also published as
HUP1700498
Latest bibliographic data on file with the International Bureau