Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020111948 - MOULD POWDER AND MOULD COATING

Publication Number WO/2020/111948
Publication Date 04.06.2020
International Application No. PCT/NO2019/050261
International Filing Date 28.11.2019
IPC
B22C 3/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
CFOUNDRY MOULDING
3Selection of compositions for coating the surfaces of moulds, cores, or patterns
B22D 13/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
13Centrifugal casting; Casting by using centrifugal force
10Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor; Means for feeding molten metal, cleansing moulds or removing castings
CPC
B22C 3/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
CFOUNDRY MOULDING
3Selection of compositions for coating the surfaces of moulds, cores, or patterns
B22D 13/102
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
13Centrifugal casting; Casting by using centrifugal force
10Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
101Moulds
102Linings for moulds
Applicants
  • ELKEM ASA [NO]/[NO]
Inventors
  • GUILLEMIN, François
  • TOUMI, Mourad
Agents
  • ZACCO NORWAY AS
Priority Data
187208229.11.2018FR
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MOULD POWDER AND MOULD COATING
(FR) POUDRE POUR MOULE ET REVÊTEMENT DE MOULE
Abstract
(EN)
The present invention relates to a mould powder for coating cast moulds for reducing surface defects, such as pinholes, in ductile cast iron products. The mould powder comprises10 –99.5% by weight of a ferrosilicon alloy, 0.5-50% by weight of iron sulphide,and optionally1-30% by weight of CaSi, and/or 1-10% by weight of CaF2. The invention further relates to a mould coating on and internal surface of a casting mould comprising 10 –99.5% by weight of a ferrosilicon alloy, 0.5-50% by weight of iron sulphide,and optionally1-30% by weight of CaSi, and/or 1-10% by weight of CaF2.
(FR)
La présente invention concerne une poudre pour moule destinée à revêtir des moules de coulée afin de réduire des défauts de surface, tels que des trous d'épingle, dans des produits en fonte ductile. La poudre pour moule comprend de 10 à 99,5 % en poids d'un alliage de ferrosilicium, de 0,5 à 50 % en poids de sulfure de fer, et éventuellement de 1 à 30 % en poids de CaSi, et/ou de 1 à 10 % en poids de CaF2. L'invention concerne en outre un revêtement de moule sur une surface interne d'un moule de coulée comprenant de 10 à 99,5 % en poids d'un alliage de ferrosilicium, de 0,5 à 50 % en poids de sulfure de fer, et éventuellement de 1 à 30 % en poids de CaSi, et/ou de 1 à 10 % en poids de CaF2.
Latest bibliographic data on file with the International Bureau