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Environmental friendly energy-saving spraying type liquid phase plasma rust and stain removal and surface modification method

A liquid plasma ionization, environmental protection and energy-saving technology, which is applied in the field of ion rust removal and surface modification, can solve the problems that biological cleaning technology is in the research and development stage, and achieve the effects of reducing damage, reducing stress concentration, and increasing resistance

Inactive Publication Date: 2016-05-04
CHONGQING ACADEMY OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Microbial cleaning technology has made great progress abroad and has been successfully applied in many fields, but domestic biological cleaning technology is still in the research and development stage

Method used

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  • Environmental friendly energy-saving spraying type liquid phase plasma rust and stain removal and surface modification method
  • Environmental friendly energy-saving spraying type liquid phase plasma rust and stain removal and surface modification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, it is a schematic diagram of spraying liquid plasma ion cleaning liquid, the cathode (or anode) of the power supply is connected to the workpiece 3 to be cleaned, and the other pole of the power supply is connected to the nozzle 1 (see figure 1 , the base material is made of titanium plate, carbon plate or stainless steel plate), and the liquid phase ion cleaning solution 4 ejected from the nozzle 1 is a neutral salt solution based on sodium bicarbonate, sodium carbonate and sodium sulfate. It is 5% sodium bicarbonate, 3% sodium carbonate, and 3% sodium sulfate (mass concentration, the same below). The nozzle 1 is connected with the air compressor, which can accelerate the ejection of the liquid and bring huge impact force. The injection pressure ≥1MPa; the ejected liquid flow directly contacts the workpiece 3 to be cleaned under the action of an appropriate electric field, and plasma 2 is generated on the surface of the workpiece 3, and the...

Embodiment 2

[0027] The difference from Example 1 is that zirconia ceramic particles with a diameter of 0.001-2.0 mm are doped with a mass fraction of 5% in the liquid plasma cleaning solution.

Embodiment 3

[0029] The difference from Example 1 is: the content of the liquid phase ion cleaning solution is 15% sodium bicarbonate, 1% sodium carbonate, and 2% sodium sulfate. And doping quartz sand particles with a diameter of 0.001-2.0mm in the liquid plasma ion cleaning solution with a mass fraction of 3%.

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Abstract

The invention aims at providing an environmental friendly energy-saving spraying type liquid phase plasma rust and stain removal and surface modification method. The environmental friendly energy-saving spraying type liquid phase plasma rust and stain removal and surface modification method is characterized in that a negative pole or a positive pole of a power source is connected to a workpiece to be cleaned; and the other end of the power source is connected to a spraying head; and a liquid phase plasma cleaning solution is sprayed on the surface of a workpiece to be cleaned in a spraying manner. The environmental friendly energy-saving spraying type liquid phase plasma rust and stain removal and surface modification method is used for removing stain on the surfaces of products, solves the problem that a conventional method only can be used for cleaning relatively small products, is wide in range of application, does not endanger environments, meanwhile can cause a hardened layer with the depth of 0.1-0.4mm to be formed on the surface of a part, improves the resistance of the part surface to plastic deformation and fracture, causes the surface layer to generate compressional stress, improves the fatigue strength of the surface layer and reduces stress concentration.

Description

technical field [0001] The invention relates to the field of metal surface oil stain cleaning, in particular to a liquid phase ion derusting and decontamination method and a surface modification method. Background technique [0002] Metal surface cleaning is mainly to remove oil, rust, scale and other pollutants on the metal surface. According to the principle of cleaning, the main cleaning technologies at home and abroad are as follows: [0003] 1) Physical cleaning method [0004] Physical cleaning is to use various forces, heat, sound, light, electricity and other physical effects to remove dirt. Its technical level is mainly reflected in the equipment and its optimized configuration and comprehensive application. Physical cleaning does not need to consume various raw materials, but only consumes a certain amount of energy, and will not produce various waste liquids to pollute the environment. Including manual cleaning method, mechanical cleaning method, spray cleaning ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G5/00
CPCC23G5/00
Inventor 王开阳刘林森陈奉文罗远新李雷霆
Owner CHONGQING ACADEMY OF SCI & TECH
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