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Liquid-phase plasma electrolysis osmosis treatment device

A liquid-phase plasma and treatment device technology, applied in the direction of electrolytic coatings, surface reaction electrolytic coatings, coatings, etc. The effect of large degree, simple operation and low cost

Inactive Publication Date: 2012-10-17
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a liquid-phase plasma electrolytic infiltration treatment device, which is to improve the current density in the direct current non-frequency mode. Eclipse and other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: in (NH 2 ) 2 CO+KCl+H 2 In the electrolyte system of O, the anode is a titanium plate, the cathode is 38CrMoAl steel, the size is 2mmx12mmx15mm, the concentration of urea is 20% to 60% (mass fraction), and a pulse-free voltage of 160V to 300V is applied between the anode and cathode, then A liquid-phase plasma arc discharge is formed on the surface of the cathode 38CrMoAl steel, and the discharge time is 2 to 10 minutes. The solitary light and temperature of the sample surface are controlled by adjusting the depth of the first and second wires with scale values ​​in the electrolyte solution. On the 38CrMoAl steel surface of the cathode, a permeated layer with a thickness of 20 μm to 80 μm is formed, the surface is relatively smooth, and the microhardness of the permeated layer is about 600 to 1040HV 0.1 .

Embodiment 2

[0024] Example 2: In HCONH 2 +KCl+H 2 In the electrolyte system of O, the anode is an aluminum plate, the cathode is 38CrMoAl steel, the size is 2mmx12mmx15mm, the concentration of formamide is 20% to 80% (mass fraction), and a pulse-free voltage of 160V to 300V is applied between the anode and cathode, then A liquid-phase plasma arc discharge is formed on the surface of the 38CrMoAl steel at the cathode, and the discharge time is 2 to 10 minutes. When HCONH 2When the concentration is low (the water content has a great influence on the temperature), or when the voltage is high, the temperature and arc are controlled by adjusting the double wires, and a permeation layer with a thickness of 20 μm to 130 μm is formed on the surface of the cathode 38CrMoAl steel, and the surface is dark gray. , bright and clean, the microhardness of the seepage layer is about 600~980HV 0.1 .

Embodiment 3

[0025] Example 3: In NH 3 .H 2 O+KCl+H 2 Under the electrolyte system of O, the anode is stainless steel, the cathode is 38CrMoAl steel, the size is 2mmx12mmx15mm, the concentration of ammonia water is 20% to 80% (mass fraction), and a pulse-free voltage of 160V to 300V is applied between the anode and cathode, then the The 38CrMoAl steel surface of the cathode forms a liquid-phase plasma arc discharge, and the discharge time is 2 to 10 minutes. When NH 3 .H 2 When the concentration of O is low (the water content has a great influence on the temperature), or when the voltage is high, the temperature and arc are controlled by adjusting the double wires, and a permeation layer with a thickness of 20 μm to 180 μm is formed on the surface of the cathode 38CrMoAl steel. The surface is gray, very smooth, and the microhardness of the seepage layer is about 600-950HV 0.1 .

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Abstract

The invention relates to a liquid-phase plasma electrolysis osmosis treatment device. An anode of a pulseless power supply is connected with one ends of a switch, a voltage meter and a stainless steel tank respectively, a calibrated conductor I and a calibrated conductor II are respectively inserted in the stainless steel tank filled with electrolyte solution, the other ends of the calibrated conductor I and the calibrated conductor II and the other ends of the voltage meter and the switch are connected with an anode electrode, a cathode is connected with a cathode workpiece, the anode electrode and the cathode workpiece are respectively inserted in an insulating electrolytic bath filled with impregnant electrolysis solution. The liquid-phase plasma electrolysis osmosis treatment device has the technical effects of being obvious in improvement effect, simple in structure, simple and convenient to operate and lower in cost; the key point lies in a temperature and arc control part, namely the two conductors are connected in parallel to conduct temperature and arc control, and the degree of freedom is larger and the precision is higher compared with a single-conductor temperature and arc control device and a slide rheostat for differential pressure arc control. The liquid-phase plasma electrolysis osmosis treatment device can effectively control the arc light and temperature on the surface of a test sample in liquid-phase plasma electrolysis osmosis process, and is beneficial to stability of arc light on the surface of the test sample, thereby forming uniform compact thicker osmosis layers.

Description

technical field [0001] The invention relates to a processing device, in particular to a liquid-phase plasma electrolytic osmosis processing device. Background technique [0002] At present, plasma surface treatment technology has become one of the most active research directions in the field of material science because of its advantages in performance and low cost. Liquid-phase plasma electrolytic infiltration technology has opened up a new way to solve these problems. It is carried out in an open atmospheric environment and in a specific electrolyte. The overall workpiece is slightly heated, and it can be completed after nitriding, carburizing or Quenching directly after carbonitriding treatment can obtain a high hardness, wear-resistant and corrosion-resistant carburized layer within a few minutes. Compared with the traditional ion carbonitriding technology, it has low energy consumption (60-85% power saving compared with the traditional process), no pollution, short proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C8/36C25D11/00
Inventor 华小珍周浪郭文廷周贤良崔霞董应虎
Owner NANCHANG HANGKONG UNIVERSITY
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