Title:
超硬合金工具材料、およびその製造方法
Document Type and Number:
Japanese Patent JP4403286
Kind Code:
B2
Abstract:
To provide a material for cutting, to which higher toughness and higher hardness are desired in applications such as a cutting tool and an abrasion-resistant and impact-resistant tool, and specifically a hard metal material containing carbon nanotubes for the tool, and to provide a manufacturing method therefor.
The tungsten-carbide-cobalt-based hard metal material for a tool is obtained by adding the carbon nanotube of 0.01 to 1.00 wt% to a raw powder comprising a tungsten carbide powder of 85 to 95 wt% and the balance of a cobalt powder, and liquid-phase sintering it; and has a deflection strength of 2,700 MPa or higher.
COPYRIGHT: (C)2006,JPO&NCIPI
Inventors:
Katagiri Tetsuya
Application Number:
JP2005074138A
Publication Date:
January 27, 2010
Filing Date:
March 15, 2005
Export Citation:
Assignee:
Katagiri Manufacturing Co., Ltd.
International Classes:
C22C29/08; B22F3/10; C22C1/05; C22C47/14; C22C49/12; C22C49/14; C22C101/10
Domestic Patent References:
| JP7216491A | ||||
| JP6041672A | ||||
| JP1176010A | ||||
| JP64055357A |
Attorney, Agent or Firm:
Minoru Sasaki