A method for strengthening the super-lubricating surface of high-speed gear-like graphite carbon film
A technology for surface strengthening and high-speed gears, which is applied in the field of high-speed gear graphite carbon film super-lubricating surface strengthening, which can solve the problems of low lubricant film life, improve friction and wear performance, improve film-base bonding strength, and increase bonding strength Effect
Active Publication Date: 2015-09-16
CSIC NO 12 RES INST
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[0004] In order to overcome the defects of the above-mentioned prior art, the object of the present invention is to provide a method for strengthening the super-lubricating surface of the high-speed gear graphite carbon film. Balanced magnetron sputtering composite target technology prepares a graphite-like carbon film with an ultra-low friction coefficient, which is deposited on the surface of the micro-sprayed and fluid-polished gear, which solves the problem of high-speed and low service life of the solid lubricant film of the gear, and effectively reduces the high-speed, gear vibration noise
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[0025] The present invention will be described in detail below with reference to the drawings and specific embodiments.
[0026] A high-speed gear-like graphite carbon film super-lubricating surface strengthening method includes the following steps:
[0027] Step 1: Use conventional shot peening and enhanced shot peening to perform shot peening on the gear surface, improve the gear surface stress state, remove gear burrs, oxides and surface machining tool marks, and use ceramic particles with a particle size in the range of 10-60 μm to perform the gear After surface sandblasting treatment to remove oxides and improve the gear surface roughness, fluid polishing technology should be used to make the gear surface smoothness less than 0.2μm, and the fluid polishing amount of the gear surface should be controlled within 5μm, and then use ultrasonic dewaxing and degreasing cleaning Treat the gear surface for 10-15 minutes each, then rinse it with acetone reagent and air dry or dry it;
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Abstract
The invention relates to a super-lubricated surface strengthening method of a graphite-like carbon film for a high-speed gear. The method comprises the following steps: firstly, sequentially carrying out shot blasting, micro-jetting and fluid polishing pre-treatment on the surface of the gear to enable the surface smoothness of the gear to be less than 0.2 micron; then, by adopting an unbalanced magnetron sputtering composite target technology, introducing elements such as Y and Ta into a graphite-like carbon film preparation technology to prepare a graphite-like carbon film with ultralow friction coefficient on the surface of the gear, namely carrying out sputter cleaning on the surface of a base metal 1; and sequentially preparing a Cr transitional layer 3, a Cr / C gradient layer 4 and a graphite-like composite work layer 5 with ultralow friction coefficient on a fluid polishing surface layer 2. The method provided by the invention solves the problem that a solid lubricating film of the high-speed gear is short in service life, and the vibrating noise of the high-speed gear is effectively reduced. The vibrating noise of a transmission gear by adopting the technology is reduced by 10-15%, so that the method provides a novel technical path for reducing the vibrating noise of the gear.
Description
Technical field [0001] The invention belongs to the technical field of physical vapor deposition of thin film materials and modern surface engineering technology, and relates to a method for preparing an ultra-low friction coefficient graphite-like carbon film by unbalanced magnetron sputtering, and in particular to a high-speed gear-like graphite based on reducing transmission noise Carbon film super lubricating surface strengthening method. Background technique [0002] Gear transmission continues to develop in the fields of high speed, light weight and heavy load. How to reduce the vibration and noise of gear transmission is an important research field of modern industrial technology. Gear surface solid lubrication is an important means to reduce gear transmission noise. Because the life of general solid lubricating film can not meet the needs of high-speed gear transmission life, its application research is severely restricted. [0003] In order to improve the coating life of ...
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IPC IPC(8): C23F17/00
Inventor 王佐平陈喜锋宇文江涛
Owner CSIC NO 12 RES INST
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