Vacuum production method for SiOx coating on organic precoating metal sheet

A metal plate and pre-coating technology, which is applied in the direction of metal material coating process, coating, vacuum evaporation plating, etc., can solve the problems that the wear resistance, scratch resistance performance and environmental protection cannot be greatly improved, and achieve environmental protection in the preparation process , good aesthetic performance, and the effect of improving the service life

Inactive Publication Date: 2008-04-02
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that the traditional method of adding SiO to the organic coating cannot greatly improve the wear resistance, scratch resistance and environmental protection. At the same time, the relevant parameters of the film can be flexibly and accurately adjusted according to the needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: SiOx coating is plated on the surface of polyurethane precoated steel sheet for automobiles with MW-PECVD.

[0019] In this embodiment, the MW-PECVD method is used to coat the surface of the polyurethane precoated steel sheet for automobiles with a SiO coating. The specific methods and steps are as follows:

[0020] In the activation section, 80sccm oxygen is passed through the microwave plasma generator, under the condition of 2.46GHz, 400W, the oxygen plasma is made, and the pressure is about 20Pa; Through, the surface is cleaned and revitalized. The C=O bond on the surface increases, NHCONH transforms to NHCOO, and the roughness of the surface increases.

[0021] In the coating section, the ratios of HMDSO and oxygen in the three sub-coating units are 5 / 3, 5 / 2, and 5 / 1, respectively. Through the plasma generator, under the condition of 2.46GHz, 300W, the oxygen plasma is made, and the pressure is about 20Pa; the polyurethane pre-coated board enters th...

Embodiment 2

[0024] Embodiment 2: use EB-PVD to coat SiOx coating on the surface of polyurethane precoated steel sheet for automobiles.

[0025] In this embodiment, reverse magnetron sputtering etching is used as pre-activation treatment, and EB-PVD is used as coating process to deposit SiOx coating on the surface of polyurethane pre-coated steel sheet for automobiles. The specific methods and steps are as follows:

[0026]In the activation section, 80sccm oxygen and 100sccm argon gas are introduced to generate plasma by reverse magnetron sputtering, and the pressure is about 20Pa; Surfaces are cleaned and revitalized. The C=O bond on the surface increases, NHCONH transforms to NHCOO, and the roughness of the surface increases.

[0027] In the coating section, a 50kW electron beam gun is used to heat the quartz to generate SiO2 vapor, and at the same time, oxygen is introduced into the three sub-coating units. 3 / h,, 8m 3 / h, the pressure is about 20Pa; the polyurethane pre-coated board...

Embodiment 3

[0030] Embodiment 3: use plasma enhanced EB-PVD to plate a SiOx coating on an epoxy resin precoated aluminum plate.

[0031] In this embodiment, reverse magnetron sputtering etching is used as pre-activation treatment, and plasma-enhanced EB-PVD is used as coating process to deposit SiOx coating on the surface of epoxy resin pre-coated aluminum plate for automobiles. The specific methods and steps are as follows:

[0032] In the activation section, 80sccm oxygen and 100sccm argon gas are introduced to generate plasma by reverse magnetron sputtering, and the pressure is about 20Pa; the epoxy resin pre-coated plate enters the activation section and passes through it at 20 m / min. Cleans and revitalizes. The C=O bond on the surface increases, and the roughness of the surface increases.

[0033] In the coating section, a 50kW electron beam gun and a hollow cathode plasma generator are used to heat the quartz to generate SiO2 vapor. At the same time, oxygen is introduced to make th...

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PUM

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Abstract

The invention relates to a vacuum preparation method for SiOx plating coat of organic precoat metal plate, including the following steps: firstly, surface cleaning and surface activation are completed under plasma condition; secondly, SiOx filming is completed on an organic coating inside a vacuum filming unit through a vacuum seal device. Based on the two steps, the following steps can also be adopted: thirdly, oxygen plasma is generated by a plasma generator inside a post treatment unit and the outermost surface layer of the film generated by the above steps is converted to SiO2 and tends to a steady state; fourthly, product with steady SiOx surface is formed under nitrogen or inert gas condition. The preparation method improves the anti-wear and anti-scratching performance of organic coating and adopts nonpolluting process; meanwhile, flexible and accurate adjustment of related parameters of the film can be realized.

Description

technical field [0001] The invention relates to a preparation method of a coating on a metal plate, in particular to a vacuum preparation method of a coating on an organic pre-coated metal plate. Background technique [0002] Organically coated metal sheets (including organic pre-coated steel sheets, organic pre-coated aluminum sheets, color-coated sheets, etc.) usually have good aesthetic properties, good corrosion resistance, etc., and are widely used in home appliances, automobiles, construction and other fields. During use, the surface mechanical properties of organic coatings, especially the wear resistance and scratch resistance, have a great impact on their performance and life, and the repair costs after scratches are also very high. Therefore, it is of great significance to improve the surface wear resistance and scratch resistance of organic coatings. [0003] In order to improve the wear resistance and scratch resistance of organic coatings, the following four me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/10C23C14/22C23C14/46C23C14/54C23C16/40C23C16/513C23C16/52
Inventor 杨立红傅建钦张健
Owner BAOSHAN IRON & STEEL CO LTD
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