Carbon structure film and graphene additive solid-liquid composite anti-friction and anti-abrasion method

A solid-liquid composite, graphene technology, used in additives, petroleum industry, lubricating compositions, etc., can solve the problems of limited life and limited film, achieve lower friction coefficient and wear rate, excellent friction and wear performance, and improve service life. effect of life

Active Publication Date: 2018-05-18
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation of the superhard and superslip film is limited by the working conditions such as high speed and high load, and the thickness of the film is limited by the gap tolerance of moving parts.

Method used

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  • Carbon structure film and graphene additive solid-liquid composite anti-friction and anti-abrasion method
  • Carbon structure film and graphene additive solid-liquid composite anti-friction and anti-abrasion method
  • Carbon structure film and graphene additive solid-liquid composite anti-friction and anti-abrasion method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take high-polished stainless steel sheets or steel balls, go through routine cleaning: degreasing, derusting, drying and put them into a vacuum chamber;

[0031] When the vacuum chamber vacuum reaches 1×10 -4 Start coating at this time, clean with argon ion bombardment, argon controlled at 3-8 Pa, bias voltage 800-1000V, conduction ratio 0.2-0.7, frequency 15-50KHz, clean for 10-30 minutes;

[0032] In-situ nitriding with nitrogen, nitrogen controlled at 10-30 Pa, bias voltage 800-1500V, conduction ratio 0.2-0.7, frequency 15-50KHz, cleaning for 30-80 minutes;

[0033] Adjust pulse bias to 800-1000 V, conduction ratio 0.5-0.8, frequency 30-50 KHz, methane gas pressure at 15-18 Pa, methane-hydrogen pressure ratio 1:1-1:3 adjustable, preparation Fullerene carbon film, time 2-4 hours; test results film hardness 18-30GPa, thickness 1-2 microns, surface finish 0.1-0.2nm.

[0034] Such as figure 1 As shown, the typical Raman spectrum of fullerene-like carbon films includes a...

Embodiment 2

[0036] Take high-polished stainless steel sheets or steel balls, go through routine cleaning: degreasing, derusting, drying and put them into a vacuum chamber;

[0037] When the vacuum chamber vacuum reaches 1×10 -4 Start coating at this time, clean with argon ion bombardment, argon controlled at 3-8 Pa, bias voltage 800-1000V, conduction ratio 0.2-0.7, frequency 15-50KHz, clean for 10-30 minutes;

[0038] In-situ nitriding with nitrogen, nitrogen controlled at 10-30 Pa, bias voltage 800-1500V, conduction ratio 0.2-0.7, frequency 15-50KHz, cleaning for 30-80 minutes;

[0039] Adjust pulse bias voltage to 800-1000 V, conduction ratio 0.5-0.8, frequency 30-50 KHz, methane gas pressure at 15-18 Pa, methane-hydrogen pressure ratio 1:0-1:1 adjustable, using auxiliary Power supply heating is to control the substrate temperature at 150-350°C, and prepare graphite-like carbon film for 2-4 hours; the test results show that the film has a hardness of 8-15GPa, a thickness of 1-2 microns...

Embodiment 3

[0042] Take high-polished stainless steel sheets or steel balls, go through routine cleaning: degreasing, derusting, drying and put them into a vacuum chamber;

[0043] When the vacuum chamber vacuum reaches 1×10 -4 Start coating at this time, clean with argon ion bombardment, argon controlled at 3-8 Pa, bias voltage 800-1000V, conduction ratio 0.2-0.7, frequency 15-50KHz, clean for 10-30 minutes;

[0044] In-situ nitriding with nitrogen, nitrogen controlled at 10-30 Pa, bias voltage 800-1500V, conduction ratio 0.2-0.7, frequency 15-50KHz, cleaning for 30-80 minutes;

[0045] Adjust pulse bias voltage to 1200-1500V, conduction ratio 0.5-0.8, frequency 80-150 KHz, methane gas pressure at 15-18 Pa, methane-hydrogen pressure ratio 1:1-1:3 adjustable, preparation Onion carbon film, time 2-4 hours; test results film hardness 25-32GPa, thickness 0.8-1.8 microns, surface finish 0.1-0.2nm.

[0046] Such as figure 2 As shown, the typical Raman spectrum of onion carbon film includes...

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Abstract

The invention discloses a carbon structure film and graphene additive solid-liquid composite anti-friction and anti-abrasion method. Nano-structure films made of fullerene-like carbon, graphite-like carbon, onion-like carbon, graphene and the like are prepared and matched in pairs to form friction pairs, and graphene nano-particles serve as lubricating oil additives, so that the friction coefficient and the wear rate are remarkably reduced, the service life is prolonged, and the sensitivity and the reliability are improved. Carbon structure films and graphene additives can efficiently and lastingly form a friction film easy to shear in a friction interface. The film can be used for resisting abrasion on surfaces of metal, ceramic and polymer materials and reducing the friction coefficient,the graphene additive in use can be various sold or self-made products. The method aims to solve the problem that the service life, sensitivity and reliability of existing high-end equipment, aerospace parts and the like can not meet the requirements in 10-15 years.

Description

technical field [0001] The invention relates to a method for reducing friction and antiwear through solid-liquid composite of carbon structure film and graphene additive. Background technique [0002] The scale of my country's manufacturing industry has jumped to the first place in the world, but it is large but not strong and not refined. Key components and core [0003] Due to the lack of stability and reliability of technology and high-end equipment, there is a high degree of external dependence, which has become a bottleneck restricting the development of high-tech industries. Reducing the friction and wear of mechanical moving parts has been regarded as one of the ways to effectively prolong its working life and improve its reliability and stability. [0004] According to the reports of BP, EU Environment Agency, Argonne National Laboratory and Academy of Finland: China’s motor vehicle consumption accounted for 40% of the world’s oil consumption in 2010, and its emissi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M125/02C10M169/04C10N30/06
CPCC10M125/02C10M169/04C10M2201/041C10M2201/066C10M2205/0285C10N2030/06C10N2030/56C10N2020/06
Inventor 张俊彦王永富王兆龙王彦
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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