To provide a light-weighted capstan block of excellent thermal conductivity for a wire drawing machine having a surface strength equivalent or more to that of one formed of a cast or steel.
A base material M forming the capstan block 2 is formed of duralumin, the base material M of an outer circumferential face is melted up to a prescribed depth by plasma arc, a strengthening particle 4 formed of WC with a specific gravity higher than that of the base material M is sedimented and deposited by the gravity, in a lower part of a molten part of the base material M of the outer circumferential face, a floating layer 6 floated with the molten base material M is formed on an upper side of a deposition layer 5 deposited with the strengthening particle 4, a surface of the floating layer 6 of the base material M is smoothed thereby, and a hard coating film 7 is formed on the surface of the smoothed floating layer 6, by a thermal spraying method.
TOGOSHI KENICHIRO
TANIGUCHI MASAKI
KITANAKA ISAO
OMAE YUKI
KANEKO MASAKAZU
BRIDGESTONE CORP
| JPH07164039A | 1995-06-27 | |||
| JP2002028715A | 2002-01-29 | |||
| JPH08309427A | 1996-11-26 | |||
| JP2008100271A | 2008-05-01 |
Higashio Masahiro
Takayoshi Tagawa