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Container including composite coating

A composite coating and container technology, which is applied in the field of containers containing composite coatings, can solve the problems of insufficient bonding strength, high hardness of ceramic materials, and low particle deposition efficiency, and achieve the effects of high hardness, antibacterial and thermal insulation

Inactive Publication Date: 2020-02-14
厦门佰事兴新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Ceramic materials have high hardness and low plastic deformation ability. It is difficult to directly prepare ceramic coatings by cold spraying. On the one hand, high-speed ceramic particles are prone to breakage when they hit the surface of the substrate, resulting in many internal cracks in the coating; The bonding strength is not enough, the particle deposition efficiency is low, and the porosity of the ceramic coating is also large

Method used

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  • Container including composite coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] according to figure 1 The schematic diagram shown is a mixed powder composed of copper powder with an average particle size of 10 μm, silver powder with an average particle size of 18 μm and aluminum oxide powder with an average particle size of 25 μm in a weight ratio of 1:0.1:5, and is heated to 450 °C with Raoult nozzle acceleration. Nitrogen at -550°C is used as the working carrier gas, and the flow rate of the working carrier gas is 0.8m 3 / min, the high-speed working carrier gas accelerates the mixed powder to be sprayed from the spray gun, and the spray pressure is 2.0MPa. It collides with the inner surface of the aluminum alloy pot to form a composite coating with an average thickness of 300 μm, and the inner surface is coated with Aluminum alloy cookware with silver / copper / alumina composite coating. The microhardness (HV0.2) of the composite coating is 78.4, and the wear rate is 3.5×10 -4 mm 3 m -1 ·N -1 , the bonding strength to the aluminum alloy exceeds...

Embodiment 2

[0026] according to figure 1 The schematic diagram shown is a mixed powder composed of copper powder with an average particle size of 18 μm, silver powder with an average particle size of 30 μm, and silicon carbide powder with an average particle size of 35 μm in a weight ratio of 1:0.09:6. Helium at -600°C is used as the working carrier gas, and the flow rate of the working carrier gas is 1.5m 3 / min, the high-speed working carrier gas accelerates the mixed powder to be sprayed from the spray gun, and the spray pressure is 1.8MPa. It collides with the inner surface of the iron pan to form a composite coating with an average thickness of 700μm, and the inner surface is coated with silver. / Copper / SiC composite coated iron cookware. The microhardness (HV0.2) of the composite coating is 124.7, and the wear rate is 6.1×10 -5 mm 3 m -1 ·N -1 , The bonding strength to iron is 45MPa.

Embodiment 3

[0028] according to figure 1 The schematic diagram shown is a mixed powder composed of copper powder with an average particle size of 10 μm, silver powder with an average particle size of 25 μm and zirconia powder with an average particle size of 33 μm in a weight ratio of 1:0.13:8, and is heated to 500 ℃ with the acceleration of a Raoult nozzle. Helium at -600°C is used as the working carrier gas, and the flow rate of the working carrier gas is 1.2m 3 / min, the high-speed working carrier gas accelerates the mixed powder to be sprayed from the spray gun, the spray pressure is 1.5MPa, and hits the inner surface of the stainless steel thermos cup to form a composite coating with an average thickness of 500μm, and the inner surface is coated with silver / Copper / zirconia composite coating thermos cup. The microhardness (HV0.2) of the composite coating is 82.5, and the wear rate is 8.7×10 -5 mm 3 m -1 ·N -1 , The bonding strength to stainless steel is 48MPa.

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Abstract

The invention relates to the technical field of the coating, specifically a container including a composite coating. The container is selected from a pot, a cooker and a cup, and comprises a base material and the composite coating; the base material is arranged at the external of the container, and the composite coating is arranged in the container; the base material is made of metal base material, and the composite coating is compose of at least one of silver and copper and ceramic, and is prepared by spraying-coating the mixed powder composed of at least one of copper micro-powder and silvermicro-powder and the ceramic micro-powder on the surface of the base material through a cold spraying-coating process. The composite coating disclosed by the invention integrates the comprehensive performance of the copper, the silver and the ceramic, and the features of good wear resistance, antibiosis and heat insulation are provided for the container.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a container containing a composite coating. Background technique [0002] Cold spraying, also known as cold air power spraying, is a new type of spraying technology that makes full use of the principle of aerodynamics. It was discovered by Soviet scientists and has attracted the attention of developed countries such as the United States, Japan, Germany, and France. A lot of research has been carried out. At present The preparation of pure metals, alloys and composite coatings has been successfully realized. [0003] The working principle of cold spraying is that during spraying, solid particles are driven by compressed gas and hit the substrate at high speed through the Raoult nozzle, causing the particles to undergo severe plastic deformation below the melting point temperature, thereby forming a coating. Cold spraying is suitable for deposition of materials sensitive to oxida...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47G19/22A47J36/02A47J27/00C23C24/04
CPCA47G19/2205A47J27/00A47J36/02C23C24/04
Inventor 廖龙辉罗文富
Owner 厦门佰事兴新材料科技有限公司
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