Preparation method of TiC ceramic coating

A technology of ceramic coating and electrode, which is applied in the field of preparation of TiC ceramic coating, can solve the problems of micro cracks, limited application, poor process stability, etc. low effect

Inactive Publication Date: 2006-07-26
GUANGDONG UNIV OF TECH
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  • Abstract
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Problems solved by technology

But it should be pointed out that the disadvantages of this method are: the coating material is only provided by a single anode, the discharge is carried out in the air, there is no liquid phase reaction, the composition of the strengthening layer is uneven and there are microcracks, the thickness of the strengthening layer and the surface roughness Difficult to coordinate, low production efficiency (generally 5-10min / cm 2 ), the process stability is poor, and the existence of these problems limits the application of this technology in the strengthening of tools and molds

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  • Preparation method of TiC ceramic coating
  • Preparation method of TiC ceramic coating

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Embodiment

[0021] The principle diagram of the present invention is as figure 1 As shown, the preparation process is carried out on an ordinary EDM machine tool, the liquid medium is industrial aviation kerosene; the discharge electrode is a metal Ti electrode, and the substrate to be deposited, that is, the workpiece electrode (4) is 45# carbon steel. The deposition area is 80mm 2 , the preparation method of TiC ceramic coating of the present invention comprises the following steps:

[0022] 1) The bulk metal Ti electrode (1) and workpiece electrode (4) are placed in kerosene (2);

[0023] 2) connecting the anode of the pulse power supply (3) to the bulk metal Ti electrode (1), and connecting the cathode of the pulse power supply (3) to the workpiece electrode (4);

[0024] 3) Turn on the pulse power supply (3), the Ti metal ions released by the discharge of the metal Ti electrode (1) in the liquid medium and the C ions ionized in the kerosene (2) perform electrochemical reactions und...

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Abstract

The invention discloses a TiC ceramic coating preparing method, which comprises the following steps: 1) placing block metal Ti electrode(1) and working electrode(4) in coal oil(2); 2) connecting anode of impulsing power source(3) to block metal Ti electrode(1); linking up with cathode of impulsing power source(3) and work electrode(4); 3) making connection with impulsing power source(3); carrying on electrochemical reaction with Ti metallic ion released form metal and C ion ionized from coal oil(2); compounding ceramic coating(5) of ceramic film TiC and depositing on the surface of work electrode. The invention improves the stability of craft and cementing property of basilemma.

Description

1. Technical field: [0001] The invention relates to a preparation method of a TiC ceramic coating, which belongs to the innovative technology of the preparation method of the TiC ceramic coating. 2. Background technology: [0002] With the continuous development of high-tech, the working conditions of construction machinery, equipment and components are becoming increasingly harsh. In many occasions, materials are required to have properties such as wear resistance, corrosion resistance, fatigue resistance, vibration resistance, and rapid temperature change resistance, so that simple Metal materials can no longer meet the requirements of use. Therefore, the method of coating ceramic coatings on the metal surface is used to prepare metal materials that not only have the strength and toughness of metals, but also have high hardness, high wear resistance, high chemical stability and other aspects of ceramic materials. The research work of superiority has been paid more and more...

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Application Information

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IPC IPC(8): C25D9/06
Inventor 揭晓华靖爱卢国辉
Owner GUANGDONG UNIV OF TECH
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