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Dual-layer glow ion carbonizing apparatus and process

A double-layer glow ion, carburizing device technology, applied in metal material coating process, ion implantation plating, coating and other directions, can solve the problems of poor composition controllability, long processing time, poor controllability, etc. The effect of increasing penetration speed

Inactive Publication Date: 2004-11-03
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Solid, liquid, gas carburizing speed is slow, the controllability of the composition is poor, and the environment is polluted
Paste carburization, poor working conditions, poor controllability, high labor intensity, long processing time
Vacuum carburizing and glow ion carburizing equipment are complicated and costly, and the carbon supply source is flammable gas, and the gas supply is inconvenient, etc.

Method used

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  • Dual-layer glow ion carbonizing apparatus and process

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Embodiment Construction

[0017] Embodiments of the present invention are as follows: as shown in the accompanying drawings. Place a size of 40mm×20mm (diameter×high) 20 steel workpieces 4 in a hollow steel auxiliary cathode 3 with a size of 80mm×50mm (diameter×high), and hang the size 25mm×20mm along the circumference in the auxiliary cathode 3 5 graphite strips of ×5mm (length×width×thickness), ensuring that the graphite source strip 5 is in the middle of the distance between the inner diameter of the auxiliary cathode 3 and the outer diameter of the workpiece 4 . Vacuum up to 10 -1 After Pa, fill argon gas to 40Pa, add high-voltage DC heating voltage-500V between the workpiece 4 and the vacuum container 6, and add high-voltage DC sputtering voltage-1000V between the graphite source bar 5 and the vacuum container 6, After the workpiece is heated up to 1000°C, keep it warm for 1.5 hours, cool down to room temperature, and take out the sample. The carburizing result with a surface carburized layer th...

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Abstract

An apparatus and process for carbonizing or carbonitriding on the surface of electrically conductive substance by the hollow cathode effect and unequal-potential hollow cathode effect in dual-layer glow ion osmosized metal is disclosed. The graphite is used as carbon source. Its advantages are high speed and uniformity, low cost, and no pollution.

Description

1. Technical field [0001] The double-layer glow ion carburizing device and process of the present invention belong to the category of metal material surface chemical heat treatment process technology. Specifically, it is a technology and device for performing ion carburizing and carbon-nitriding on the surface of conductive materials using double-layer glow ion metalizing technology and hollow cathode effect. The present invention provides a new infiltration device and method using graphite as a carbon source. 2. Background technology [0002] Existing carburizing methods, such as solid carburizing, liquid carburizing, gas carburizing, paste carburizing, controlled atmosphere carburizing, vacuum carburizing and glow ion carburizing methods, all have different shortcomings. Solid, liquid, gas carburizing speed is slow, the controllability of the composition is poor, and the environment is polluted. Ointment carburization, poor working conditions, poor controllability, high ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C8/36C23C14/38
Inventor 高原徐重
Owner TAIYUAN UNIV OF TECH
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