Solid lubrication treatment method for friction pair laser micro-texture surface

A technology of solid lubrication and treatment method, applied in the field of friction pair surface lubrication, can solve the problems of poor filling effect, poor lubrication and anti-friction effect, etc., and achieve the effects of enhancing bearing capacity, reducing plastic flow resistance and low friction coefficient

Inactive Publication Date: 2016-07-20
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the disadvantages of poor lubrication and anti-friction effects and poor filling effects in the prior art, the present invention provides a laser micro-textured surface solid lubrication treatment method for friction pairs to improve the performance of friction pairs at high temperatures. Lubricating effect

Method used

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  • Solid lubrication treatment method for friction pair laser micro-texture surface
  • Solid lubrication treatment method for friction pair laser micro-texture surface
  • Solid lubrication treatment method for friction pair laser micro-texture surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) As described in Comparative Example 1.

[0042] (2) Mix the components in the self-lubricating composite material uniformly, and dry them at a temperature of 100-130° C. for 2-3 hours until drying for later use; the self-lubricating composite material includes the following mass percentages of each component: 20% polymer Imide (PI) and 80% nano-MoS 2 ;

[0043] (3) after pre-treating the surface of the mold, the self-lubricating composite material described in step (2) is pre-filled into the micro-dimples on the surface of the friction pair described in step (1) with a mold hot pressing curing filling method; The self-lubricating composite material is pressurized by the press to carry out pressure-holding, hot-pressing, curing and filling; the mold hot-pressing curing and filling part is the same as that described in Comparative Example 1, and then the upper and lower sets of nuts of the simple mold pressing device that have been tightened are sleeved respectively. ...

Embodiment 2

[0051] (1) As described in Comparative Example 1.

[0052] (2) Mix the components in the self-lubricating composite material uniformly, and dry them at a temperature of 100-130° C. for 2-3 hours until they are dry for later use; the self-lubricating composite material includes the following mass percentages of each component: 10-15 % Polyimide (PI), 74-80% Nano MoS 2 , 0-12% carbon nanotube additives (CNTs), 0-5% binder;

[0053] (3) after pre-treating the surface of the mold, the self-lubricating composite material described in step (2) is pre-filled into the micro-dimples on the surface of the friction pair described in step (1) with a mold hot pressing curing filling method; The self-lubricating composite material is pressurized by a press to perform pressure-holding, hot-pressing, curing and filling; this step (3) is the same as that in Example 2.

[0054] (4) The friction pair filled in step (3) was first heated at a temperature of 250° C. for 20 min, and then heated in...

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Abstract

The invention provides a solid lubrication treatment method for a friction pair laser micro-texture surface. The method comprises the steps that a micro-pit shape is machined on the surface of a friction pair through the laser surface texturing technology; all components in a self-lubrication composite are evenly mixed and dried to be used later; the surface micro-pit in a pre-treated die is filled with the self-lubrication composite through a die hot-press curing filling method; pressure maintaining hot-press curing filling is conducted through a hot press; then, the filled friction pair is heated for 20 min at the temperature of 250 DEG C and then protected by 99.9% of N2 to be heated for 30 min at the temperature ranging from 370 DEG C to 385 DEG C, insulating sintering is conducted for 0.5 h-1.0 h, and sintering forming is conducted after cooling; and solid lubrication can be finished after surface posttreatment. According to the method, the high-temperature sliding friction performance of the self-lubrication surface of a micro-texture can be improved, a good lubricating effect can be achieved under the conditions such as the high temperature and the high pressure, the bearing capability of a nanometer composite solid lubricating agent is effectively improved, and the nanometer composite solid lubricating agent can be applied under some complex and strict work conditions.

Description

technical field [0001] The invention belongs to the field of friction pair surface lubrication, in particular to a method for solid lubrication treatment of friction pair laser microtexture surface. Background technique [0002] Sliding friction pairs are widely used in various mechanical parts, among which sliding bearings are the most widely used, which have been widely used in various fields such as aircraft, automobiles, and wave power generation equipment. Sliding bearing is an important mechanical component mainly used to support shaft parts in mechanical equipment, so it will inevitably lead to certain friction and wear on the surface of the bearing bush. Under normal conditions, sliding bearings are often lubricated by water lubrication, oil lubrication and grease lubrication. However, under modern processing conditions, machines are more and more widely used in special working conditions such as high temperature, low temperature, heavy load, vacuum, dust, radiation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/04B23K26/362C10M169/04C10N50/08C10N30/06
CPCB23K26/355C10M169/048C10M2201/041C10M2201/0663C10M2217/04C10N2030/06C10N2050/08F16C33/04F16C2202/54F16C2208/40
Inventor 何镇盐解玄华希俊刘凯孙建国
Owner JIANGSU UNIV
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