Ceramic composite material for thermal spraying on metal surface and preparation and application method thereof

A ceramic composite material and metal surface technology, which is applied in the field of ceramic composite materials for thermal spraying on metal surfaces and its production and application, can solve the problems of insufficient strength, low strength, low hardness, and easy occurrence of scratches, wear marks, pits, cracks, etc. problem, to achieve the effect of improving the drop resistance

Inactive Publication Date: 2015-12-09
GUANGDONG JANUS SMART GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] ①The outer frames of existing mobile phones are mainly made of 6-series aluminum alloys, which have low strength and hardness, poor drop resistance, and are prone to defects such as scratches, wear marks, pits, and cracks;
[0004] ② The surface treatment of the aluminum alloy on the outer frame of the mobile phone is mainly anodized, and the thickness of the anodized f

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0048] 1. Weigh TiO according to mass percentage 2 58.0~60.0%, Al 2 o 3 20.0~25.0%, ZrO 2 4.0~6.0%, Y 2 o 3 0.5~1.0%, Cr 2 B0.8~1.0%, Ni8~10%, Mo0.8~1.0% and other ceramic powder materials;

[0049] 2. The above ceramic powder raw materials, the particle size of the ceramic powder raw materials provided by the particle size is 1-3μm, after high-energy ball milling and nano-sand grinding, the particle size of the powder is ground to 500-800nm;

[0050] 3. Evaporate the water in the ceramic slurry prepared above in a spray dryer, where the inlet temperature is set to 280°C and the outlet temperature is set to 80°C;

[0051]4. After the ceramic powder prepared by this method is melted at high temperature in a vacuum thermal spraying machine, it is sprayed and attached to the surface of the aluminum alloy substrate under the push of compressed gas to form a high hardness and high strength with a thickness of 0.1-1.0mm. ceramic coating.

[0052] 5. After the coating is poli...

example 2

[0059] 1. Weigh TiO according to mass percentage 2 50.0~55.0%, Al 2 o 3 25.0~30.0%, ZrO 2 6.0~8.0%, Y 2 o 3 0.5~1.0%, Cr 2 B0.8~1.0%, Ni8~10%, Mo0.8~1.0% and other ceramic powder raw materials.

[0060] 2. The above ceramic powder raw materials, the particle size of the provided ceramic powder raw materials has a particle size of 1-3 μm, and after high-energy ball milling and nano-sand grinding, the particle size of the powder is ground to 500-800nm.

[0061] 3. Evaporate the water in the ceramic slurry prepared above in a spray dryer, wherein the inlet temperature is set to 260°C, and the outlet temperature is set to 100°C.

[0062] 4. After the ceramic powder prepared by this method is melted at high temperature in a vacuum thermal spraying machine, it is sprayed and attached to the surface of the aluminum alloy substrate under the push of compressed gas to form a high hardness and high strength with a thickness of 0.1-1.0mm. ceramic coating.

[0063] 5. After the co...

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Abstract

A ceramic composite material for thermal spraying on metal surface comprises the following components in percentages by weight: 50%-60% of TiO2, 20%-30% of Al2O3, 5%-8% of ZrO2, 0.5%-1.0% of Y2O3, 0.8%-1.0% of Cr2B, 8%-10% of Ni, and 0.8%-1.0% of Mo. A preparation method of the ceramic composite material for thermal spraying on metal surface comprises the following steps of: 1) preparing a ceramic component material; 2) using the ceramic component material to prepare a ceramic slurry that contains composite powder through high-energy ball milling; 3) performing dispersing and ball milling on the composite powder; and 4) evaporating water in the ceramic slurry through ball milling to prepare dry ceramic composite powder. In addition, the ceramic composite material is coated on the metal surface through a thermal spraying method, and thereby forming a dense ceramic coating on the metal surface. The ceramic composite material is applied on products such as mobile phone shells, so that the aesthetic property of the product can be improved while the surface strength of the product is improved.

Description

technical field [0001] The invention relates to a ceramic composite material for thermal spraying on a metal surface and a production and application method. Background technique [0002] The main process and disadvantages of the existing smartphone frame: [0003] ①The outer frame of the existing mobile phone is mainly made of 6-series aluminum alloy, which has low strength and hardness, poor drop resistance, and is prone to defects such as scratches, wear marks, pits, and cracks; [0004] ② The surface treatment of the aluminum alloy on the outer frame of the mobile phone is mainly anodized, and the thickness of the anodized film on the surface is too thin, only about 5 μm, and the film density is low, so the appearance is easy to wear during use; [0005] ③ The chemical substances used in the anodizing process are very harmful to the environment. [0006] In short, the existing aluminum alloy metal mobile phone frame shells have problems such as insufficient strength, e...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/46
Inventor 张宁彭毅萍钟孝贤胡耀斌
Owner GUANGDONG JANUS SMART GRP CO LTD
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