Method for producing Hard Metal Powder and Hard Metal Powder

Juha Lagerbom; Marjaana Karhu; Hanna-Mari Sinilehto; Ulla Kanerva

Method for producing Hard Metal Powder and Hard Metal Powder

Juha Lagerbom (Inventor), Marjaana Karhu (Inventor), Hanna-Mari Sinilehto (Inventor), Ulla Kanerva (Inventor)

Research output: Patent › Patent

Abstract

The invention relates to a method for producing hard metal powder suitable for manufacturing hard metal products comprising metal carbides and a binder. To provide a method which is easy to carry out and which provides high quality hard metal powder, the method is characterized by the steps of: a) dissolving in water, water soluble raw materials and a binder source to form an aqueous solution, b) drying the aqueous solution to form a precursor powder having the raw materials homogenously distributed throughout the precursor powder, c) decomposing the precursor powder by heating the powder in an inert atmosphere to remove gas evolved in the decomposition of the raw materials, d) grinding the precursor powder and mixing it with a liquid media to produce a suspension, e) spray drying the suspension to agglomerate the precursor powder, and f) heat treating the agglomerated precursor powder to form a hard metal powder containing agglomerates of carbides evenly distributed and bonded to a metallic matrix.

Patent family as of 14.12.2021
DE602018015850 D1 20210506 DE201860015850T 20180216
EP3582916 A1 20191225 EP20180709060 20180216
EP3582916 B1 20210421 EP20180709060 20180216
FI128311 B 20200313 FI20170005140 20170217
FI20175140 L 20180818 FI20170005140 20170217
US2020230702 AA 20200723 US20180486581 20180216
WO18150100 A1 20180823 WO2018FI50116 20180216

Link to current patent family on right

Original language	English
Patent number	EP3582916
IPC	C22C 29/ 10 A I
Priority date	16/02/18
Publication status	Published - 25 Dec 2019
MoE publication type	H1 Granted patent

Cite this

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title = "Method for producing Hard Metal Powder and Hard Metal Powder",

abstract = "The invention relates to a method for producing hard metal powder suitable for manufacturing hard metal products comprising metal carbides and a binder. To provide a method which is easy to carry out and which provides high quality hard metal powder, the method is characterized by the steps of: a) dissolving in water, water soluble raw materials and a binder source to form an aqueous solution, b) drying the aqueous solution to form a precursor powder having the raw materials homogenously distributed throughout the precursor powder, c) decomposing the precursor powder by heating the powder in an inert atmosphere to remove gas evolved in the decomposition of the raw materials, d) grinding the precursor powder and mixing it with a liquid media to produce a suspension, e) spray drying the suspension to agglomerate the precursor powder, and f) heat treating the agglomerated precursor powder to form a hard metal powder containing agglomerates of carbides evenly distributed and bonded to a metallic matrix.Patent family as of 14.12.2021DE602018015850 D1 20210506 DE201860015850T 20180216 EP3582916 A1 20191225 EP20180709060 20180216 EP3582916 B1 20210421 EP20180709060 20180216 FI128311 B 20200313 FI20170005140 20170217 FI20175140 L 20180818 FI20170005140 20170217 US2020230702 AA 20200723 US20180486581 20180216 WO18150100 A1 20180823 WO2018FI50116 20180216Link to current patent family on right ",

author = "Juha Lagerbom and Marjaana Karhu and Hanna-Mari Sinilehto and Ulla Kanerva",

year = "2019",

month = dec,

day = "25",

language = "English",

type = "Patent",

note = "EP3582916; C22C 29/ 10 A I",

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T1 - Method for producing Hard Metal Powder and Hard Metal Powder

AU - Lagerbom, Juha

AU - Karhu, Marjaana

AU - Sinilehto, Hanna-Mari

AU - Kanerva, Ulla

PY - 2019/12/25

Y1 - 2019/12/25

N2 - The invention relates to a method for producing hard metal powder suitable for manufacturing hard metal products comprising metal carbides and a binder. To provide a method which is easy to carry out and which provides high quality hard metal powder, the method is characterized by the steps of: a) dissolving in water, water soluble raw materials and a binder source to form an aqueous solution, b) drying the aqueous solution to form a precursor powder having the raw materials homogenously distributed throughout the precursor powder, c) decomposing the precursor powder by heating the powder in an inert atmosphere to remove gas evolved in the decomposition of the raw materials, d) grinding the precursor powder and mixing it with a liquid media to produce a suspension, e) spray drying the suspension to agglomerate the precursor powder, and f) heat treating the agglomerated precursor powder to form a hard metal powder containing agglomerates of carbides evenly distributed and bonded to a metallic matrix.Patent family as of 14.12.2021DE602018015850 D1 20210506 DE201860015850T 20180216 EP3582916 A1 20191225 EP20180709060 20180216 EP3582916 B1 20210421 EP20180709060 20180216 FI128311 B 20200313 FI20170005140 20170217 FI20175140 L 20180818 FI20170005140 20170217 US2020230702 AA 20200723 US20180486581 20180216 WO18150100 A1 20180823 WO2018FI50116 20180216Link to current patent family on right

AB - The invention relates to a method for producing hard metal powder suitable for manufacturing hard metal products comprising metal carbides and a binder. To provide a method which is easy to carry out and which provides high quality hard metal powder, the method is characterized by the steps of: a) dissolving in water, water soluble raw materials and a binder source to form an aqueous solution, b) drying the aqueous solution to form a precursor powder having the raw materials homogenously distributed throughout the precursor powder, c) decomposing the precursor powder by heating the powder in an inert atmosphere to remove gas evolved in the decomposition of the raw materials, d) grinding the precursor powder and mixing it with a liquid media to produce a suspension, e) spray drying the suspension to agglomerate the precursor powder, and f) heat treating the agglomerated precursor powder to form a hard metal powder containing agglomerates of carbides evenly distributed and bonded to a metallic matrix.Patent family as of 14.12.2021DE602018015850 D1 20210506 DE201860015850T 20180216 EP3582916 A1 20191225 EP20180709060 20180216 EP3582916 B1 20210421 EP20180709060 20180216 FI128311 B 20200313 FI20170005140 20170217 FI20175140 L 20180818 FI20170005140 20170217 US2020230702 AA 20200723 US20180486581 20180216 WO18150100 A1 20180823 WO2018FI50116 20180216Link to current patent family on right

UR - https://worldwide.espacenet.com/patent/search/family/061569290/publication/EP3582916A1?q=EP3582916

M3 - Patent

M1 - EP3582916

ER -

Method for producing Hard Metal Powder and Hard Metal Powder

Abstract

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