Solid particle, solid lubricant, and metal member

• US 9,771,539 B2
• Filed: 02/06/2014
• Issued: 09/26/2017
• Est. Priority Date: 02/06/2013
• Status: Active Grant

• Current Assignee: Daikin Industries Ltd
• Original Assignee: Daikin Industries Ltd
• Inventors: Koh, Meiten, Shigenai, Fumiko, Isogai, Tomohiro
• Primary Examiner(s): WEISS, PAMELA HL
• Application Number:
  US14/762,851
• Publication Number:
  US 20150368577A1
• Time in Patent Office: 1,328 Days
• CPC Class Codes: C10M 103/00 Lubricating compositions characterised by the base-material being an inorganic material containing more than 10% water C10M173/00
• CPC Class Codes: C10M 103/04 Metals; Alloys
• CPC Class Codes: C10M 103/06 Metal compounds
• CPC Class Codes: C10M 159/12 Reaction products
• CPC Class Codes: C10M 2201/042 halogenated, i.e. graphite fluoride
• CPC Class Codes: C10M 2201/0423 used as base material
• CPC Class Codes: C10M 2201/061 Carbides; Hydrides; Nitrides
• CPC Class Codes: C10M 2201/0613 used as base material
• CPC Class Codes: C10M 2201/0623 used as base material
• CPC Class Codes: C10M 2201/0653 used as base material
• CPC Class Codes: C10M 2201/066 Molybdenum sulfide
• CPC Class Codes: C10M 2201/0663 used as base material
• CPC Class Codes: C10M 2201/1023 used as base material
• CPC Class Codes: C10M 2201/1053 used as base material
• CPC Class Codes: C10M 2205/0225 used as base material
• CPC Class Codes: C10M 2209/1033 used as base material
• CPC Class Codes: C10M 2217/0443 used as base material
• CPC Class Codes: C10N 2020/06 Particles of special shape or size
• CPC Class Codes: C10N 2020/061 Coated particles
• CPC Class Codes: C10N 2030/06 Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
• CPC Class Codes: C10N 2030/08 : Resistance to extreme temperature
• CPC Class Codes: C10N 2040/02 : Bearings
• CPC Class Codes: C10N 2040/18 : in connection with recordings on magnetic tape or disc
• CPC Class Codes: C10N 2050/08 : Solids
• CPC Class Codes: C10N 2050/14 : Composite materials or sliding materials in which lubricants are integrally molded
• CPC Class Codes: F16C 2220/20 : by sintering pulverised material, e.g. powder metallurgy in general B22F
• CPC Class Codes: F16C 33/1095 : with solids as lubricant, e.g. dry coatings, powder
• CPC Class Codes: F16C 33/121 : Use of special materials
• CPC Class Codes: F16C 33/14 : Special methods of manufacture; Running-in
• CPC Class Codes: F16C 33/6696 : with solids as lubricant, e.g. dry coatings, powder

Abstract

The present invention aims to provide solid particles with improved lubrication, a solid lubricant including the solid particles, and a metal member including, on the surface thereof, the solid particles or the solid lubricant. The solid particles of the present invention include base particles and carbon fluoride particles attached to surfaces of the base particles.

Claims

1. Solid particles, comprising:

base particles, and

carbon fluoride particles attached to surfaces of the base particles,

wherein the carbon fluoride particles are attached to and form a composite with the base particles by mechanochemical processing,

an average particle size of the base particles in the solid particles is 1 to 80 μ

m,

an average particle size of the carbon fluoride particles in the solid particles is 0.01 to 40 μ

m, and

the base particles comprise molybdenum disulfide.

2. The solid particles according to claim 1,

wherein the carbon fluoride particles and the base particles give a ratio by mass of 60/40 to 1/99.

3. A solid lubricant, comprising:

the solid particles according to claim 1, and

a material different than the solid particles.

4. A metal member comprising, on a surface thereof, the solid particles according to claim 1.

5. A metal member comprising, on a surface thereof, the solid lubricant according to claim 3.

6. The solid particles according to claim 1, wherein the average particle size of the base particles in the solid particles is 2 to 50 μ

m.

7. The solid particles according to claim 1, wherein the average particle size of the carbon fluoride particles in the solid particles is 0.1 to 20 μ

m.

8. The solid particles according to claim 1, wherein the average particle size of the solid particles is 1.01 to 100 μ

m.

9. The solid particles according to claim 1, wherein the mechanochemical processing is a process of compositing the carbon fluoride particles and base particles by applying at least one force selected from a compression force, a shearing force, a frictional force and a stretching force.

10. The solid lubricant of claim 3, wherein the material different than the solid particles comprises at least one selected from the group consisting of a plastic, a grease and an adhesive.

11. The solid particles according to claim 1, wherein the average particle size of the base particles in the solid particles is 3 to 50 μ

m.

12. The solid particles according to claim 1, wherein the average particle size of the base particles in the solid particles is 7 to 50 μ

m.

13. The solid particles according to claim 1, wherein the average particle size of the base particles in the solid particles is 15 to 50 μ

m.

14. The solid particles according to claim 1, wherein the average particle size of the base particles in the solid particles is 25 to 50 μ

m.

15. The solid particles according to claim 1, wherein the average particle size of the carbon fluoride particles in the solid particles is less than the average particle size of the base particles in the solid particles.

16. The solid particles according to claim 6, wherein the average particle size of the carbon fluoride particles in the solid particles is less than the average particle size of the base particles in the solid particles.

17. The solid particles according to claim 11, wherein the average particle size of the carbon fluoride particles in the solid particles is less than the average particle size of the base particles in the solid particles.

18. The solid particles according to claim 12, wherein the average particle size of the carbon fluoride particles in the solid particles is less than the average particle size of the base particles in the solid particles.

19. The solid particles according to claim 13, wherein the average particle size of the carbon fluoride particles in the solid particles is less than the average particle size of the base particles in the solid particles.

20. The solid particles according to claim 1, wherein the average particle size of the carbon fluoride particles in the solid particles is 0.2 to 3 μ

m.