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A method and device for preparing composite metal materials by spraying and spraying

A technology of composite metal materials and spraying method, which is applied in the field of materials, can solve the problems of difficulty in ensuring safety, low radiation heating efficiency, and affecting heating effects, etc., and achieve the effects of safety assurance, simple equipment, and enhanced bonding effect and strength

Inactive Publication Date: 2016-06-22
卢玉锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the temperature of high-pressure compressed gas puts forward very high technical requirements for equipment design and materials, and safety is difficult to guarantee.
Increasing the temperature of the particles is prone to throat sticking, and at the same time, it is easy to cause changes in the grain length and phase transition of the sprayed particle structure, which affects the performance of the coating, and the radiation heating efficiency is low, and it will be rapidly cooled by the cooling effect of the high-speed airflow; Microwave heating will be reflected by metal particles, affecting the actual heating effect

Method used

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  • A method and device for preparing composite metal materials by spraying and spraying

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1. A crucible and spray gun are arranged above the deposition substrate. At first, the deposition substrate moves from right to left at a speed of 10mm / s, the spray atomized metal is plain carbon steel, the metal atomization temperature is 1600°C, the thickness of the metal deposition layer formed by atomization spray is 12mm, and the metal atomization pressure is 1.5 MPa. After the metal deposition layer is formed, the deposition substrate moves to the bottom of the spray gun. The composite metal is low-carbon steel. The average particle size of the composite metal particles is 50 μm. The temperature of the metal deposition layer before spraying is about 900 ° C. The pressure of the high-pressure compressed gas in the spray gun At 2.0MPa, the thickness of the composite bonding layer is 3mm.

Embodiment 2

[0024]Example 2. Arrange the crucible and spray gun above the deposition substrate. At first, the deposition substrate moves from right to left at a speed of 12mm / s. The atomized metal is ordinary carbon steel. The metal atomization temperature is 1590°C. is 10mm, and the metal atomization pressure is 1.2MPa. After the metal deposition layer is formed, the deposition substrate moves to the bottom of the spray gun. The composite metal is low-carbon steel. The average particle size of the composite metal particles is 60 μm. The temperature of the metal deposition layer before spraying is about 1000°C. At 1.8MPa, the thickness of the composite bonding layer is 2mm.

Embodiment 3

[0025] Example 3. A crucible and spray gun are arranged above the deposition substrate. At first, the deposition substrate moves from right to left at a speed of 13mm / s, the spray atomized metal is plain carbon steel, the metal atomization temperature is 1620°C, the thickness of the metal deposition layer formed by atomization spray is 15mm, and the metal atomization pressure is 1.0 MPa. After the metal deposition layer is formed, the deposition substrate moves to the bottom of the spray gun. The composite metal is low-carbon steel. The average particle size of the composite metal particles is 70 μm. The metal temperature of the metal deposition layer before spraying is about 950 ° C. The pressure of the high-pressure compressed gas in the spray gun Controlled at 1.5MPa, the thickness of the composite bonding layer is 1.5mm.

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Abstract

The invention discloses a method and device for preparing composite metal materials by spraying and spraying. The method is to melt metal A to form molten metal, and then spray and atomize the molten metal through an atomizing nozzle to form metal atomized droplets and Spray onto the deposition substrate to form a metal deposition layer on the deposition substrate; the composite metal B powder particles are carried by a high-pressure compressed gas with a pressure of 1.5-5MPa, and impact on the metal deposition layer at supersonic speed, and the metal B powder particles are on the metal deposition layer. Plastic deformation occurs on the surface of the deposition layer and bonding occurs, and a composite bonding layer is formed on the surface of metal A. The invention has simple process and simple equipment, can carry out large-scale output application and batch production, and has good popularization and application prospect.

Description

technical field [0001] The invention relates to a method and a device for preparing a metal composite material, in particular to a method and a device for preparing a composite metal material by spraying and spraying, and belongs to the field of material technology. Background technique [0002] Composite materials are artificially compounded by matrix materials and composite materials by a special method. It gives full play to the physical and chemical properties of the materials and forms a new type of material with excellent comprehensive performance. It is the fastest growing and most promising in the field of materials today. As a new discipline, the development of composite materials has been listed as a key plan all over the world. In the process of research on composite materials, people have realized that the key to composite materials is the interface bonding between the matrix material and the cladding material. In order to achieve the technical requirements of g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/123C23C4/06C23C24/04
Inventor 卢玉锋刘艳春卢尚工石磊张晓燕张云龙任三兵郭卓团
Owner 卢玉锋
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