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Method for producing wear-resistant repair coating of porous structure

A porous structure and coating technology, which is applied in the field of generating anti-friction porous structure repair coatings, can solve the problems of unpopularity, and achieve the effect of easy operation, fast speed, simple and direct operation

Active Publication Date: 2017-05-31
XUZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of method is currently used more in military equipment, but it has not been popularized in civilian equipment manufacturing.

Method used

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  • Method for producing wear-resistant repair coating of porous structure
  • Method for producing wear-resistant repair coating of porous structure
  • Method for producing wear-resistant repair coating of porous structure

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Embodiment Construction

[0045] The operation steps are as follows:

[0046] 1. For the surface treatment of the workpiece, grinding, degreasing, passivation, washing and drying are carried out in sequence.

[0047] 2. Configure the electrolyte. The composition and process parameters of the electrolyte in the present embodiment are respectively:

[0048] CuSO 4 ·5H 2 O 250g / L, 98% concentrated sulfuric acid 50g / L, electrolyte temperature is 25°C. The electrolyte solution is prepared with analytical pure or chemical pure reagents plus distilled water.

[0049] 3. Place the workpiece in the deposition tank, and align the nozzle to the corresponding position of the wear.

[0050] 4. The selection of process parameters is a rectangular nozzle diameter of 10×1mm, and the distance between the nozzle and the substrate is 5mm;

[0051] Electrolyte flow rate 300L / h, machine tool scanning speed 1000mm / min;

[0052] Pulse current, peak density 450A / dm 2 , the duty ratio is 1:5, and the pulse frequency is...

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Abstract

A method for producing a wear-resistant repair coating of a porous structure comprises the following steps: pretreating the surface of a base body, carrying out polishing treatment, washing the surface, washing the surface of the base body by using distilled water, and then, carrying out de-oiling treatment by using acetone to wipe for about five minutes; preparing an electrolyte by using 250-300g / L of cupric sulfate pentahydrate and 50g / L of concentrated sulfuric acid, wherein the temperature of the electrolyte is 25DEG C; setting technical parameters as follows: the aperture of a rectangular nozzle is 10*1mm, the aperture of a round nozzle is 1-3mm, and distances between the nozzles and the base body are 2-10mm; separately configuring current into the two forms of direct current and pulse, and controlling the two parameters on purpose; and scanning the number of layers, and setting the parameters of numerical control equipment.

Description

technical field [0001] The present invention relates to a method of producing a friction-reducing porous structure repair coating. Background technique [0002] At present, large-scale equipment in various fields of the national economy, such as construction machinery, mining machinery, and heavy vehicle parts, cause huge losses due to friction and wear every year. In 2008, the national loss due to friction and wear was as high as 950 billion yuan. For worn parts, the treatment method is often to simply replace them with new ones, which is extensive and wasteful, and is contrary to the green manufacturing and circular economy strategies advocated by the country. [0003] The analysis found that the parts with the most serious wear and tear are generally dominated by sliding friction pairs, such as sliders and guide rails, pistons and cavity walls, sliding bearings and journals, etc., which are characterized by: large impact and vibration loads during use, frequent Due to va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/08C25D5/18
CPCC25D5/08C25D5/18
Inventor 范晖赵阳培黄因慧田宗军邢邦圣王善奎姜海波
Owner XUZHOU NORMAL UNIVERSITY
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