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Continuous casting forming device and method for ceramic particle reinforced metal matrix composites

A technology of ceramic particles and composite materials, which is applied in the direction of metal processing equipment, casting equipment, casting melt containers, etc., can solve the problem of uniform distribution of ceramic hard particles, time-consuming and high process stability requirements, material structure and Uneven mechanical properties and other problems, to achieve the effects of large-scale production and continuous production, improve production economic benefits, and save production time

Active Publication Date: 2018-12-18
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It takes time and requires high process stability, and its preparation process is complicated and involves many steps
The method of preparing ceramic particle preforms mainly includes manual preparation and mechanical industrial preparation. If the preform is prepared by manual method, the production efficiency is very low, which is not conducive to large-scale industrial production, and the stability of the prepared preform is not high.
If the method of mechanical industrialization is used to prepare, although the production efficiency is improved, the problem of uniform distribution of ceramic hard particles in the metal matrix cannot be solved, and the structure and mechanical properties of the prepared material are not uniform.

Method used

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  • Continuous casting forming device and method for ceramic particle reinforced metal matrix composites
  • Continuous casting forming device and method for ceramic particle reinforced metal matrix composites
  • Continuous casting forming device and method for ceramic particle reinforced metal matrix composites

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Before feeding the mixing bag 14, turn on the igniter at the port 1 of the fuel delivery pipe, use the internal pressure device of the fuel storage tank 2 to inject fuel to the port 1 of the fuel delivery pipe, and dry and preheat the mixing bag 14, The front end of the fuel delivery pipe 1 is a telescopic delivery pipe. The height of the flame can be controlled by extending or shrinking the length of the delivery pipe. The temperature of the injection flame is 1200°C. The flame continuously sprays and heats the mixing bag for 60 minutes until the temperature of the inner wall of the mixing bag reaches 1100°C After shrinking the fuel delivery pipe 1 to the outside of the mixing bag 14, add 20-mesh alumina ceramic particles into the mixing bag 14 through the ceramic particle feeding pipe 3, dry it for 5 minutes by the heat in the mixing bag, and then feed it through molten steel Pipe 13 is quickly filled with molten steel, and the tapping temperature is set at 1700°C;...

Embodiment 2

[0047] (1) Before feeding the mixing bag 14, turn on the igniter at the port 1 of the fuel delivery pipe, use the internal pressure device of the fuel storage tank 2 to inject fuel to the port 1 of the fuel delivery pipe, and dry and preheat the mixing bag 14, The front end of the fuel delivery pipe 1 is a telescopic delivery pipe. The height of the flame can be controlled by extending or shrinking the length of the delivery pipe. The temperature of the injection flame is 1300°C. The flame continuously sprays and heats the mixing bag for 50 minutes until the temperature of the inner wall of the mixing bag reaches 1200°C After shrinking the fuel delivery pipe 1 to the outside of the mixing bag 14, add 16-mesh boron carbide ceramic particles into the mixing bag 14 through the ceramic particle feeding pipe 3, and then transfer the material through the molten steel after drying by the heat in the mixing bag for 5 minutes Pipe 13 is quickly filled with molten steel, and the tapping ...

Embodiment 3

[0058] (1) Before feeding the mixing bag 14, turn on the igniter at the port 1 of the fuel delivery pipe, use the internal pressure device of the fuel storage tank 2 to inject fuel to the port 1 of the fuel delivery pipe, and dry and preheat the mixing bag 14, The front end of the fuel delivery pipe 1 is a telescopic delivery pipe. The height of the flame can be controlled by extending or shrinking the length of the delivery pipe. The temperature of the injection flame is 1400°C. The flame continuously sprays and heats the mixing bag for 60 minutes, until the temperature of the inner wall of the mixing bag reaches 1100°C After shrinking the fuel delivery pipe 1 to the outside of the mixing bag 14, add 30-mesh zirconium corundum ceramic particles into the mixing bag 14 through the ceramic particle feeding pipe 3, dry the heat in the mixing bag for 5 minutes, and then transfer the material through molten steel Pipe 13 is quickly filled with molten steel, and the tapping temperatu...

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Abstract

The invention discloses a continuous casting forming device and method for ceramic particle reinforced metal matrix composites, and belongs to the technical field of continuous casting. The device mainly comprises a preheating drying device, a delivering tube, a mixing ladle, a sliding nozzle, a stirring tundish, an electromagnetic stirring device, a stopper, a crystallizer, crystallizer electromagnetic stirring device, a secondary cooling device, a dummy ingot device, a withdrawal and straightening machine, a flame cutting machine and the like. The drying device and the delivering tube are arranged at the position of the mixing ladle, feeding, drying integration and automatic production can be realized, the production efficiency is improved, and the labor cost is saved; and the tundish and the crystallizer are provided with a mixing tank and the electromagnetic stirring device, thus, ceramic particles in molten steel are distributed uniformly, an effect of dispersed distribution of hard particle phases in a solidified metal matrix is achieved, the quality of a continuous casting composite blank is improved favorably, and the composites with uniform structures and mechanical properties are obtained. By the continuous casting forming device and method for the ceramic particle reinforced metal matrix composites, the metal matrix composites with uniformly distributed ceramic particles can be effectively produced in a continuous casting manner, the production time is saved, the automation level of production is improved, and it ensures that factors which affect quality of products in various working procedures and various links are in a controlled state.

Description

technical field [0001] The invention discloses a continuous casting forming device and method for a ceramic particle reinforced metal matrix composite material, belonging to the technical field of continuous casting. Background technique [0002] With the development of modern science and the advancement of technology, higher requirements are placed on the performance of materials, which not only require some special properties, but also have good comprehensive properties. Because in modern industrial production, due to the continuous improvement of the production rhythm and the gradual increase of the operating speed of mechanical equipment, the wear of mechanical parts is continuously accelerated, and the operating conditions of equipment are deteriorating day by day. Traditional, single metal alloy wear-resistant materials can no longer meet the requirements. The needs of daily production have become a short board that restricts the progress of industrial technology. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/115B22D11/12B22D11/126B22D11/22B22D41/24B22D11/14
CPCB22D11/001B22D11/115B22D11/1226B22D11/126B22D11/141B22D11/225B22D41/24
Inventor 李祖来王卓山泉周再峰蒋业华
Owner KUNMING UNIV OF SCI & TECH
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