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Ceramic particle-reinforced metal-based composite material prefabricated body forming method and device

A technology of ceramic particles and composite materials, applied in ceramic molding machines, supply devices, molding indenters, etc., can solve the problems of adverse effects on the quality control of composite materials and their parts, unfavorable large-scale industrial production, and low process stability. Achieve the effect of realizing standardized production, improving production efficiency, and reliable equipment guarantee

Active Publication Date: 2019-02-19
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the preform is prepared by manual method, the production efficiency is low, which is not conducive to large-scale industrial production, and the process stability of manual preparation is not high, which will have an adverse effect on the quality control of composite materials and their parts

Method used

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  • Ceramic particle-reinforced metal-based composite material prefabricated body forming method and device
  • Ceramic particle-reinforced metal-based composite material prefabricated body forming method and device
  • Ceramic particle-reinforced metal-based composite material prefabricated body forming method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Fully mix 25-mesh zirconium corundum ceramic particles with water glass and alumina powder in mixer 1, the proportions of the three are 90wt.%, 8wt.%, and 2wt.%, respectively, and the mixing time is 15min. The mixed paste is put into the hopper 2, and the paste is pressurized by the feeding pump 3, so that the paste is sprayed from the injection pipe 4 into the lower mold 8 of the honeycomb model, and the movement of the mechanical arm 5 Drive the injection pipe 4 to move to fill the gap of the lower mold 8; use the lower heating plate 9 to heat the lower mold 8 to realize the drying of the material. The drying conditions are: raise the temperature to 500 ° C, keep it warm for 2 hours, and the heating rate is 80 °C / h; at the same time, the upper heating plate 7 is heated to 500 °C and kept warm for 60 minutes at a heating rate of 100 °C / h to preheat the upper mold 6.

[0023] (2) Vibrate the lower mold 8 (for 2 minutes) by using the flat trolley 10 with the vibratin...

Embodiment 2

[0028] (1) Fully mix 18-mesh alumina ceramic particles with water glass and titanium carbide powder in mixer 1, the proportions of the three are 92wt.%, 5wt.%, and 3wt.%, respectively, and the mixing time is 20min. The mixed paste is put into the hopper 2, and the paste is pressurized by the feeding pump 3, so that the paste is sprayed from the injection pipe 4 into the lower mold 8 of the honeycomb model, and the movement of the mechanical arm 5 Drive the injection pipe 4 to move to fill the gap of the lower mold 8; use the lower heating plate 9 to heat the lower mold 8 to realize the drying of the material. The drying conditions are: raise the temperature to 600°C, keep it warm for 2.5 hours, and the heating rate is 90°C / h; at the same time, the upper heating plate is heated to 650°C and held for 90 minutes at a heating rate of 120°C / h to preheat the upper mold.

[0029] (2) Vibrate the lower mold 8 (32min) by using the flat trolley 10 with the vibrating device 11 to ensure ...

Embodiment 3

[0034] (1) Fully mix 40-mesh boron carbide ceramic particles with water glass and alumina powder in mixer 1, the proportions of the three are 95wt.%, 3wt.%, and 2wt.%, respectively, and the mixing time is 25min. The mixed paste is put into the hopper 2, and the paste is pressurized by the feeding pump 3, so that the paste is sprayed from the injection pipe 4 into the lower mold 8 of the honeycomb model, and the movement of the mechanical arm 5 Drive the injection pipe 4 to move to fill the gap of the lower mold 8; use the lower heating plate 9 to heat the lower mold 8 to realize the drying of the material. The drying conditions are: raise the temperature to 650 ° C, keep it warm for 2 hours, and the heating rate is 95 °C / h; at the same time, the upper heating plate is heated to 700 °C and held for 90 minutes at a heating rate of 110 °C / h to preheat the upper mold.

[0035] (2) Vibrate the lower mold 8 (for 4 minutes) by using the flat trolley 10 with the vibrating device 11 to...

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Abstract

The invention discloses a ceramic particle-reinforced metal-based composite material prefabricated body forming method and device, and belongs to the engineering technical field of ceramic particle-reinforced metal-based composite material industrial production. According to the method, ceramic particles can be mixed with a binding agent and an additive, the mixture can be tamped through a mold, and in combination with vibration and heating curing continuous production, a series of processes such as mixing, spraying, packing, uniform mixing through vibration, mold closing, heating and drying can be carried out continuously. According to the method, honeycomb-shaped porous ceramic prefabricated bodies can be continuously prepared, the labor cost in the production process is reduced, and theproduction efficiency is improved; and meanwhile, it is guaranteed that the factors influencing the product quality in all processes and links are all in a controlled state, so that the reliable equipment guarantee is provided for producing a high-quality honeycomb-shaped ceramic-surface-layer composite component.

Description

technical field [0001] The invention relates to a method and a device for forming a ceramic particle-reinforced metal-matrix composite material prefabricated body, and belongs to the engineering technical field of the industrial production of ceramic particle-reinforced metal-matrix composite materials. Background technique [0002] With the advancement of science and technology and the continuous development of modern industrial technology, the production rhythm of various industries is constantly improving, and the operating speed of mechanical equipment is also gradually increasing, and the wear and tear of mechanical parts is also accelerating. With the continuous mining of high-quality mineral resources, the operating conditions of equipment are deteriorating day by day. Most wear-resistant components such as grinding rollers need to be used under complex conditions such as wear, corrosion, high temperature, and impact. Traditional single-metal alloy wear-resistant mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B3/02B28B13/02C22C1/10
CPCC22C1/1036B28B3/021B28B3/022B28B3/025B28B13/0235C22C1/1021
Inventor 山泉周再峰李祖来蒋业华
Owner KUNMING UNIV OF SCI & TECH