To provide technology capable of increasing a life of a metal product covered with a composition for a double-layered lubricating film even when the composition for a double-layered lubricating film is scratched.
The composition for a double-layered lubricating film composes a double-layered lubricating film 23 comprising a lower layer film 19 covering an object 11 to be covered and an upper layer film 22 covering the lower layer film 19. A lower layer film composition composing the lower layer film 19 has higher Vickers hardness than the object 11 to be covered. The lower layer film 19 having high Vickers hardness is hardly scratched. Exposure of the object 11 to be covered is easily prevented since the lower layer film 19 is hardly scratched. The life of a covered metal product 20 is increased by preventing the exposure.
| JPS63131502 | FLUORINATED MAGNETIC FLUID COMPOSITION |
| WO/2020/194548 | LUBRICATING OIL COMPOSITION FOR AUTOMOBILE GEARS AND METHOD FOR PRODUCING SAME |
| WO/2023/053204 | AIR CONDITIONER |
SAITO TOMONORI
TOKUBI KOTA
KURODA YOSHIMI
SUMIKO JUNKATSUZAI KK
| JP2001031906A | 2001-02-06 | |||
| JP2004149622A | 2004-05-27 | |||
| JPS6263628A | 1987-03-20 | |||
| JP2002053883A | 2002-02-19 | |||
| JP2008308595A | 2008-12-25 | |||
| JP2001031906A | 2001-02-06 | |||
| JP2004149622A | 2004-05-27 | |||
| JPS6263628A | 1987-03-20 | |||
| JP2002053883A | 2002-02-19 | |||
| JP2008308595A | 2008-12-25 |