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Micro-nano bubble enhanced plasma polishing method

A technology of micro-nano bubbles and plasma, which is applied in the field of plasma polishing, can solve problems such as hard and brittle materials that are difficult to meet

Active Publication Date: 2021-05-18
SHANGI INST FOR ADVANCED MATERIALSNANJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the microbubbles of this device act on the surface of the workpiece while the tool is processing the surface of the workpiece, so it is difficult to meet the polishing requirements for hard and brittle materials.

Method used

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  • Micro-nano bubble enhanced plasma polishing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Implementation conditions: The processed workpiece is a SUS316L stainless steel cylinder with a length of 50mm and a diameter of 50mm with an original roughness of 12μm.

[0072] Step 1: Configure an appropriate amount of electrolyte 5 in the working tank 1, start the control system 6, set the electrolyte preheating temperature to 55°C, and start processing after confirming that the preheating temperature has reached. The electrolytic solution is a 2wt% water-soluble solution with a pH of 5-7.

[0073]Step 2: Connect the cathode tool 3 and the anode workpiece 4 to the cathode and anode of the power supply system 2 respectively to ensure that the anode workpiece 4 is in close contact with the power supply system 2 and the workpiece movement mechanism 9 and has good conductivity. And the anode workpiece 4 is fixed in a proper position in the working tank 1, and rotates around the axis of the workpiece at a rotation speed of 50 rpm.

[0074] Step 3: Start the micro-nano b...

Embodiment 2

[0080] Implementation conditions: The workpiece to be processed is an In718 plate with a length of 200mm, a width of 20mm, a thickness of 2mm, and an original roughness of 2μm.

[0081] Step 1: Configure an appropriate amount of electrolyte 5 in the working tank 1, start the control system 6, set the electrolyte preheating temperature to 70°C, and start processing after confirming that the preheating temperature has reached. The electrolytic solution is a 4wt% water-soluble solution with a pH of 6-8.

[0082] Step 2: Connect the cathode tool 3 and the anode workpiece 4 to the cathode and anode of the power supply system 2 respectively to ensure that the anode workpiece 4 is in close contact with the power supply system 2 and the workpiece movement mechanism 9 and has good conductivity. And the anode workpiece 4 is vertically fixed in an appropriate position in the working tank 1, and the rotation speed of the workpiece is set at 5 rpm.

[0083] Step 3: Start the micro-nano bu...

Embodiment 3

[0089] Implementation conditions: The processed workpiece is a TC4 cylinder with a length of 30mm and a diameter of 60mm. There is a circular groove with a depth of 20mm and a width of 10mm in the center of the cylinder length. The original roughness of the entire workpiece surface is 3μm.

[0090] Step 1: Configure an appropriate amount of electrolyte 5 in the working tank 1, start the control system 6, set the electrolyte preheating temperature to 55°C, and start processing after confirming that the preheating temperature has reached. The electrolytic solution is a 5wt% water-soluble solution with a pH of 6-7.

[0091] Step 2: Connect the cathode tool 3 and the anode workpiece 4 to the cathode and anode of the power supply system 2 respectively to ensure that the anode workpiece 4 is in close contact with the power supply system 2 and the workpiece movement mechanism 9 and has good conductivity. And the anode workpiece 4 is vertically fixed in a proper position in the workin...

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Abstract

The invention relates to the technical field of surface precision treatment, and particularly relates to a micro-nano bubble enhanced plasma polishing method. The method comprises the following steps that electrolyte containing micro-nano bubbles are conveyed into a working tank by utilizing a micro-nano bubble generating device; in the working tank of the electrolyte containing the micro-nano bubbles, a cathode tool is connected with a cathode of a power supply system, an anode workpiece is connected with an anode of the power supply system, the electrolyte is electrolyzed to separate out gas, and the gas forms a gas film layer on the surface of the anode workpiece; and a part of the gas film layer is punctured and ionized by electric field energy provided by the power supply system to form a plasma layer, and the micro-nano bubbles and the plasma layer jointly perform surface treatment on the anode workpiece. According to the micro-nano bubble enhanced plasma polishing method, by combining the comprehensive effect of the plasma layer and the micro-nano bubbles on the surface of the anode workpiece, the polishing effect on the surface of the anode workpiece is enhanced; and the micro-nano bubble collapse and the plasma layer discharge are mutually promoted and mutually beneficial, so that the polishing efficiency is greatly improved, and the polishing effect is improved.

Description

technical field [0001] The invention relates to the technical field of surface precision treatment, in particular to a method for micronano-bubble-enhanced plasma polishing. Background technique [0002] Plasma polishing is a surface treatment technology that uses plasma discharge energy to bombard the surface of the workpiece to achieve bump removal. In a specific electrolyte, a tightly wrapped gas layer can be formed on the surface of the workpiece through electric field regulation and plasma discharge can be excited to achieve surface smoothing of the workpiece. The electrolyte used in this method for polishing the workpiece surface is a low-concentration water-soluble salt, which avoids the use of toxic and harmful substances in traditional electrochemical polishing. The discharge of waste water and waste gas is reduced, and it is safer and more environmentally friendly. At the same time, compared with traditional electrochemical machining, it does not require complex ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00
CPCB24B1/00Y02P70/10
Inventor 张晓静屠学波常辉李永华唐明亮
Owner SHANGI INST FOR ADVANCED MATERIALSNANJING CO LTD
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