A laser micro-textured surface solid lubrication treatment method for friction pairs

A technology of solid lubrication and treatment method, which is applied in the field of surface lubrication of friction pairs, can solve problems such as poor lubrication and anti-friction effects, poor filling effects, etc., and achieve the effects of reducing plastic flow resistance, enhancing bearing capacity, and saving use costs

Inactive Publication Date: 2018-12-14
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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  • A laser micro-textured surface solid lubrication treatment method for friction pairs
  • A laser micro-textured surface solid lubrication treatment method for friction pairs
  • A laser micro-textured surface solid lubrication treatment method for friction pairs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Same as described in Comparative Example 1.

[0042] (2) Mix the components in the self-lubricating composite material evenly, 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 components in mass percentage: 20% poly Imide (PI) and 80% nano-MoS 2 ;

[0043] (3) After the mold surface is pretreated, the self-lubricating composite material described in the step (2) is pre-filled to the micro pits on the surface of the friction pair described in the step (1) with the mold hot pressing solidification filling method; The press pressurizes the self-lubricating composite material for pressure-holding and hot-pressing solidification and filling; the hot-pressing and solidification filling part of the mold is the same as that described in Comparative Example 1, and then the upper and lower sets of nuts of the simple mold pressurization device that have been tightened are ...

Embodiment 2

[0051] (1) Same as described in Comparative Example 1.

[0052] (2) Mix the components in the self-lubricating composite material evenly, 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 components in mass percentages: 10-15 % Polyimide (PI), 74-80% Nano MoS 2 , 0-12% carbon nanotube additive (CNTs), 0-5% binder;

[0053] (3) After the mold surface is pretreated, the self-lubricating composite material described in the step (2) is pre-filled to the micro pits on the surface of the friction pair described in the step (1) with the mold hot pressing solidification filling method; The press pressurizes the self-lubricating composite material for pressure-holding and hot-pressing solidification and filling; this step (3) is the same as in Example 2.

[0054] (4) Heat the friction pair filled in step (3) at a temperature of 250°C for 20 minutes, and then heat it under 99.9% N...

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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 surface lubrication of friction pairs, in particular to a method for treating solid lubrication on the surface of a friction pair with laser micro-texture. Background technique [0002] Sliding friction pairs are widely used in various mechanical parts, among which sliding bearings are the most widely used, and they have been widely used in various fields such as aircraft, automobiles, and wave power generation equipment. Sliding bearings are important mechanical components mainly used to support shaft parts in mechanical equipment, so it will inevitably cause certain friction and wear on the surface of the bearing pad. 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, vacuu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/04B23K26/00C10M169/04C10N50/08C10N30/06
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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