Preparation method of low-temperature multi-component composite coating based on plasma enhancement and rare earth modification technology

A rare earth modification, plasma technology, applied in coating, ion implantation plating, metal material coating process, etc., can solve the problems of short service life, low temperature coating adhesion, etc., to improve the adhesion, bombardment The effect of low power and strong bombardment effect

Inactive Publication Date: 2013-03-27
GUANGDONG STRONG METAL TECH
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Problems solved by technology

[0003] The purpose of the present invention is to provide a low-temperature multi-component composite coating preparation method based on plasma enhancement

Method used

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  • Preparation method of low-temperature multi-component composite coating based on plasma enhancement and rare earth modification technology

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specific Embodiment 1

[0021] This implementation takes a sewing machine shuttle as an example to conduct a low-temperature multi-component composite coating based on plasma enhancement and rare earth modification technology.

[0022] refer to figure 1 , the plasma-enhanced coating device that the present invention relates to comprises a vacuum chamber 1 and a vacuum obtaining device, a rotating workpiece table 12 is provided in the center of the vacuum chamber 1, and three cathode arc targets (2 , 4, 10); the cathodic arc target 2 has a blocking screen 3, and an auxiliary anode device 11 is provided directly opposite the cathodic arc target 2. A rotary arc ion plating plasma enhanced coating system is composed of a rotary workpiece table 12, three cathode arc targets, an auxiliary anode and a vacuum chamber 1.

[0023] The principle of plasma enhanced coating deposition method of the present invention is:

[0024] The vacuum chamber of the plasma-enhanced coating device is equipped with a cathodi...

specific Embodiment 2

[0031] This embodiment relates to a paper cutter used on a receipt machine of a certain type, which is divided into an upper blade and a lower blade. It was originally made of imported high-speed steel sheets. When cutting about 400,000 bills, the tip of the blade was blunted, and the edges of the cut bills were fuzzy and irregular, which did not meet customer requirements.

[0032] Due to the high hardness of the high-speed steel sheet and the difficulty in processing, the production cost of this paper cutter is high. However, end customers require that the service life of the blade be more than 600,000 pieces, and hope to reduce processing difficulty and cost. In order to meet customer requirements, not only reduce costs, but also improve the service life of blades, consider replacing materials, and adopt plasma multi-component composite coating technology. Considering the service conditions of the blade and the requirements for strength and toughness, it is appropriate to ...

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Abstract

The invention relates to a preparation method of a low-temperature multi-component composite coating based on a plasma enhancement and rare earth modification technology. The method is characterized by comprising the following steps of: 1) in a process of preparing a rare earth modified multi-component composite coating, performing the preparation process (ion plating) of the rear earth modified multi-component composite coating in gas discharge and arc discharge through a set of plasma enhanced coating device; performing omnibearing bombardment on a workpiece by use of ions in a coating technology; and soaking the workpiece in the plasma to increase the binding force of the coating and the frictional wear performance and improve the binding force, wear resistance and oxidation resistance of the coating; and 2) in the process of preparing the rare earth modified multi-component composite coating, performing low-temperature deposition at a temperature of 200-400 DEG C to form a low-temperature multi-component composite coating based on the plasma enhancement and rare earth modification technology and having high hardness, good binding force and long service life under low-temperature conditions. According to the invention, by adopting the plasma enhanced coating and rare earth modification technology, the product performance is remarkably improved, and the service life is prolonged by more than twice over an uncoated shuttle of a sewing machine.

Description

technical field [0001] The invention relates to a method for preparing a low-temperature multi-component composite coating, in particular to a method for preparing a low-temperature multi-component composite coating based on plasma enhancement and rare earth modification technology. It belongs to the technical field of new materials and surface engineering. Background technique [0002] Low-temperature coating refers to the application of ion plating low-temperature deposition technology to coat a layer of wear-resistant coating on the surface of the product at a lower temperature, which is of great significance in metal heat treatment and surface technology applications. The technical points of preparing low-temperature coatings are to improve the film / substrate bonding force and reduce large particles (droplets) to improve wear resistance. When implementing the coating process, a lower pulse bias voltage is used to reduce the substrate temperature. However, using the exi...

Claims

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Application Information

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IPC IPC(8): C23C14/32C23C14/06C23C8/36
Inventor 董小虹张中弦梁航黄拿灿
Owner GUANGDONG STRONG METAL TECH
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