To provide a tightening tool capable of obtaining an axial force required when tightening with a predetermined tightening torque in tightening a tightened body formed of thermal spraying coatings for rust prevention.
In the tightening tool which is employed for tightening of the tightened body 100 formed of the thermal spraying coatings 101b, 102b, 103b for rust prevention, it includes a bolt 1 formed with the thermal spraying coating 10 for rust prevention on the whole surface containing a head 1a and a thread 1c, a nut 2 which is tightened in the thread 1c of the bolt 1 by interposing the tightened body 100 and is formed with the thermal spraying coating 20 for rust prevention on the whole surface excepting the thread 1c and contact surface (seat surface 2b) of tightened body 100 side, and washers 3, 4 which are washers disposed between the head 1a of the bolt 1 or the nut 2 and the tightened body 100 and are formed with thermal spraying coatings 30, 40 for rust prevention on the whole surface excepting contact surfaces 3a, 4a of the tightened body 100 side.
| WO/2022/126157 | TITANIUM BORIDE COATED REFRACTORY METAL COMPONENT |
OSHIRO SOSHI
GENYA AKIYOSHI
SUGIMOTO MASANOBU
YAMADA KENICHI
FUJI ENGINEERING KK
YAMADA KINZOKU BOSHOKU KK
| JP2004176901A | 2004-06-24 | |||
| JP2009052602A | 2009-03-12 | |||
| JP2001304219A | 2001-10-31 | |||
| JPH0473611U | 1992-06-29 | |||
| JPH0341207A | 1991-02-21 | |||
| JP2000120183A | 2000-04-25 |
Takashi Kuboyama