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1. CN101151386 - Ultra-hard alloy and cutting tool

Office Chine
Numéro de la demande 200680009887.4
Date de la demande 23.03.2006
Numéro de publication 101151386
Date de publication 26.03.2008
Numéro de délivrance 101151386
Date de délivrance 19.05.2010
Type de publication B
CIB
C22C 29/08
CCHIMIE; MÉTALLURGIE
22MÉTALLURGIE; ALLIAGES FERREUX OU NON FERREUX; TRAITEMENT DES ALLIAGES OU DES MÉTAUX NON FERREUX
CALLIAGES
29Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p.ex. cermets, ou d'autres composés métalliques, p.ex. oxynitrures, sulfures
02à base de carbures ou de carbonitrures
06à base de carbures mais ne contenant pas d'autres composés métalliques
08à base de carbure de tungstène
CPC
C22C 29/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
29Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
02based on carbides or carbonitrides
B22F 2005/001
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
5Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
001Cutting tools, earth boring or grinding tool other than table ware
B22F 2998/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
2998Supplementary information concerning processes or compositions relating to powder metallurgy
Déposants Kyocera Corp.
京瓷株式会社
Inventeurs Fujino Asako
藤野亚纱子
Tokunaga Takashi
德永隆司
Mandataires lixiang lan
中科专利商标代理有限责任公司 11021
Données relatives à la priorité 091740/2005 28.03.2005 JP
095411/2005 29.03.2005 JP
358450/2005 13.12.2005 JP
370337/2005 22.12.2005 JP
Titre
(EN) Ultra-hard alloy and cutting tool
(ZH) 超硬合金及切削工具
Abrégé
(EN)
Disclosed is a super hard alloy containing 5-10% by mass of cobalt and/or nickel, 0-10% by mass of at least one substance selected from a group consisting of carbides (excluding tungsten carbide), nitrides and carbonitrides of at least one metal selected from group 4, 5 and 6 metals of the periodic table, and the balance of tungsten carbide, wherein hard phases mainly composed of tungsten carbide particles and ss particles of the at least one substance selected from the carbides, nitrides and carbonitrides are bonded together by bonding phases mainly composed of the cobalt and/or nickel. The average particle diameter of the tungsten carbide particles is not more than 1 m, and the super hard alloy has a sea-island structure wherein a plurality of bonding phase agglomerated parts, in which the cobalt and/or nickel mainly agglomerate, are scattered in the supper hard alloy surface in an amount of 10-70% by area relative to the total area of the supper hard alloy surface. Consequently, the super hard alloy is excellent in abrasion resistance and defect resistance.

(ZH)

本发明涉及一种超硬合金,其特征在于,含有5~10质量%的钴及/或镍;和0~10质量%的、从元素周期表第4、5及6族金属的组群中选出的至少一种金属的碳化物(但,除去碳化钨)、氮化物以及碳氮化物中选出的至少一种,余量由碳化钨构成;是用以所述钴及/或镍为主体的结合相,结合以碳化钨粒子和从所述碳化物、氮化物以及碳氮化物中选出的至少一种的β粒子为主体的硬质相而成的超硬合金;所述碳化钨粒子的平均粒径为1μm以下,且多个以钴及/或镍为主凝集的结合相凝集部散布在所述占超硬合金的表面上,占到其总面积的10~70面积%,呈海岛构造。

Également publié en tant que
EP6729770