| 发明名称 |
DIAMOND-COATED TOOL MEMBER, SUBSTRATE THEREOF AND METHOD FOR PRODUCING SAME |
| 摘要 |
A tool member includes a tungsten-carbide-based cemented-carbide substrate and a diamond coating deposited on the substrate. The substrate has two diffraction peaks K alpha 1 and K alpha 2 indexed by index of plane (211) for tungsten carbide in X-ray diffraction. The peaks satisfy the relationship of l1/l2 </= 35, where l1 and l2 are heights of the peaks K alpha 1 and K alpha 2 measured from a base of a trough between the two diffraction peaks. For manufacturing the tool member, a green compact is first sintered to provide a tungsten-carbide-based cemented-carbide substrate. Subsequently the substrate is ground and subsequently heat-treated at a temperature between 1000 DEG C and 1600 DEG C in a vacuum or in a non-oxdizing atmosphere. Thereafter, a diamond coating is formed on the substrate by vapor-deposition method. |
| 申请公布号 |
EP0374923(A3) |
申请公布日期 |
1990.09.26 |
| 申请号 |
EP19890123666 |
申请日期 |
1989.12.21 |
| 申请人 |
MITSUBISHI METAL CORPORATION |
发明人 |
NAKAHARA, KEI;SAKURAI, KEIICHI C/O TOKYO-SEISAKUSHO;OKAMURA, TOSHIHIKO C/O TOKYO-SEISAKUSHO;YOSHIMURA, HIRONORI C/O TOKYO-SEISAKUSHO;ETO, HIROYUKI C/O CHUO-KENKYUSHO;KIKUCHI, NORIBUMI C/O CHUO-KENKYUSHO |
| 分类号 |
C23C14/02;C23C14/06;C23C16/02;C23C16/27;(IPC1-7):C23C16/26;C04B35/52 |
主分类号 |
C23C14/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
