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Micro-embedded self-lubricating texture on surfaces of gear and cam and preparation method thereof

A cam surface, self-lubricating technology, applied in the field of gear and cam lubrication, to achieve the effect of saving the use cost, suppressing the negative thermal effect, and stabilizing the pulse

Inactive Publication Date: 2012-08-08
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a micro-embedded self-lubricating texture on the surface of gears and cams and its preparation method, so as to improve the ability of friction pairs such as gears and cams to adapt to complex working conditions

Method used

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  • Micro-embedded self-lubricating texture on surfaces of gear and cam and preparation method thereof
  • Micro-embedded self-lubricating texture on surfaces of gear and cam and preparation method thereof
  • Micro-embedded self-lubricating texture on surfaces of gear and cam and preparation method thereof

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Embodiment Construction

[0045] The ideal microcavity and microgroove were obtained by laser micromachining on the surface of the quenched 45 steel specimen, respectively as figure 1 and figure 2 As shown, the cavities and grooves are neatly arranged and uniform in size. The dimensions of microcavity and microgroove measured by VYKO morphology instrument are as follows: image 3 and Figure 4 As shown, the diameter of the microcavity obtained by laser micromachining on the surface of the sample is 70.8808 μm, the depth is 20 μm, and the width is 50 μm. It shows that the processing quality of the micro-texture is good, which creates good conditions for the embedding of solid lubricants. Through the processes of uniform mixing-powder drying-surface pretreatment-molding embedding of solid lubricant filler-sintering molding-surface post-treatment, the uniform filling and molding of solid lubricants is realized, and the embedding effect is as follows: Figure 5 and Figure 6 As shown, the lubricant i...

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Abstract

The invention discloses a micro-embedded self-lubricating texture on the surfaces of a gear and a cam and a preparation method thereof. The preparation method comprises the following steps of: performing micro texture processing on the surfaces of the gear and the cam by an Nd: YAG laser processing technology; and embedding a solid lubricant into the micro texture on the surfaces of the gear and the cam by a molding bonding technology of a self-lubricating composite material. The self-lubricating composite material comprises the following formula components in percentage by mass: 15 to 85 percent of polyimide (PI), 0 to 85 percent of polytetrafluoroethylene (PTFE), 10 to 40 percent of MoS2, 0 to 15 percent of WS2, 0 to 16 percent of graphite fluoride, 5 to 15 percent of graphite, 0 to 12 percent of PbO, 0 to 6 percent of antimony trioxide, 0 to 10 percent of CaF2 or BaF2, 0 to 15 percent of hexagonal boron nitride, 0 to 15 percent of nano lubricant and 0 to 5 percent of additive. According to the micro-embedded self-lubricating texture, the self-lubricating texture is subjected to micro embedding on the surfaces of the gear and the cam to ensure that the solid lubricant on the friction surface is stably supplied and uniformly coated, so that the lubrication and anti-wear properties of friction pairs such as the gear and the cam under complicated and harsh operating conditions are improved.

Description

technical field [0001] The invention relates to a lubrication method for gears and cams, in particular to a solid self-lubricating treatment method on the surface of a friction pair. It is used to solve the problem of lubrication and wear reduction of gears and cam surfaces under complex and severe working conditions. Background technique [0002] The tribological behavior of friction pairs (such as gears, cams, etc.) directly affects the load-carrying capacity, operating efficiency and service life of the mechanical system. With the rapid development of modern industrial technology, higher and higher requirements are put forward for the ability of friction pairs to adapt to complex and harsh working conditions. Fluid lubrication alone sometimes cannot fully exert its lubricating effect. Solid lubrication has broken through the limit of oil film lubrication and has become an important development direction of lubrication technology at present, and has become a solution to l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16N15/02F16H55/17F16H53/00B23K26/00C10M111/04C10N50/08
Inventor 华希俊张培耘孙建荣刘明吴锦泉陈美云
Owner JIANGSU UNIV
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