Squeeze casting method for mixed-particle-reinforced type aluminum matrix composite

An aluminum matrix composite material and particle reinforcement technology, which is applied in the field of metal matrix composite material preparation, can solve the problems of thermal expansion mismatch between particles and aluminum matrix, low oxidation resistance and friction coefficient, non-wetting of particles and aluminum matrix, etc. Advanced, accurate and detailed data, and the effect of improving mechanical properties

Active Publication Date: 2017-11-07
WENXI COUNTY REGAL MAGNESIUM
View PDF5 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Particle-reinforced aluminum-matrix composites are an effective method to improve the performance of aluminum alloys. At present, ceramic-reinforced aluminum-matrix composites have attracted much attention. When ceramic particles are added to the aluminum matrix, there are particle agglomerations, non-wetting of particles and aluminum matrix, and particles and aluminum matrix. Phenomena such as thermal expansion mismatch of the matrix severely limit the application of aluminum matrix composites
[0004] Quasicrystals have the properties of high hardness, wear resistance, corrosion resistance, oxidation resistance and low friction coefficient, and are often used as reinforcement phases of composite materials. However, with the development of science and technology, the performance of quasicrystal reinforced aluminum matrix composites can no longer Product needs, at present, mixed particles synergistically reinforced aluminum matrix composites are still in the research stage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Squeeze casting method for mixed-particle-reinforced type aluminum matrix composite
  • Squeeze casting method for mixed-particle-reinforced type aluminum matrix composite
  • Squeeze casting method for mixed-particle-reinforced type aluminum matrix composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0060] The principle of squeeze casting of mixed particle reinforced aluminum matrix composites is as follows:

[0061] During the squeeze casting process of composite materials, there are alumina, zirconium aluminide and aluminum-copper-iron-beryllium quasicrystal reinforcement phases in the alloy melt, the alloy melt is cast into the cavity of the extrusion mold, the squeeze casting machine is turned on, and the extrusion Molded into the molten metal, the extrusion pressure is 230MPa, and the holding time is 20s, so that the metal melt is crystallized under this pressure, the grain structure of the casting is refined, the distribution of the reinforcing phase is improved, and the uniformity of the alloy structure is improved. , so as to obtain the mixed particle reinforced aluminum matrix composite with dense structure and excellent performance.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
surface roughnessaaaaaaaaaa
tensile strengthaaaaaaaaaa
hardnessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a squeeze casting method for a mixed-particle-reinforced type aluminum matrix composite. The squeeze casting method for the mixed-particle-reinforced type aluminum matrix composite aims at the problem that the tension strength and the hardness of an aluminum matrix composite are low. According to the squeeze casting method, an aluminum alloy serves as a matrix material, aluminum-copper-iron-beryllium quasicrystal and zirconium carbonate serve as reinforcing agents, an al-sc master alloy serves as a modificator, the aluminum alloy, aluminum-copper-iron-beryllium quasicrystal, the zirconium carbonate and the al-sc master alloy are subjected to melting in a vacuum melting furnace, mechanical stirring, argon bottom blowing protecting, squeezing and heat treatment, and then the mixed-particle-reinforced type aluminum matrix composite is prepared. According to the squeeze casting method, the technology is advanced, the processes are rigorous, and data are precise, full and accurate; the mechanical performance of the aluminum matrix composite is enhanced greatly, the tension strength reaches to 409 MPa, the hardness reaches to 150.2 HV, and the elongation reaches to 4.7%; and the squeeze casting method for the mixed-particle-reinforced type aluminum matrix composite is an advanced method.

Description

technical field [0001] The invention relates to a extrusion casting method of a mixed particle reinforced aluminum-based composite material, which belongs to the technical field of metal-based composite material preparation. Background technique [0002] Aluminum-silicon alloy has good casting performance, good corrosion resistance, and low expansion coefficient. It is an alloy with more varieties and wider uses in cast aluminum alloys. It has been widely used in aerospace, ships, automobiles and other fields. [0003] Particle-reinforced aluminum-matrix composites are an effective method to improve the performance of aluminum alloys. At present, ceramic-reinforced aluminum-matrix composites have attracted much attention. When ceramic particles are added to the aluminum matrix, there are particle agglomerations, non-wetting of particles and aluminum matrix, and particles and aluminum matrix. Phenomena such as thermal expansion mismatch of the matrix severely limit the applic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10C22C1/03C22C32/00C22C21/00C22F1/04B22D18/02
CPCC22C1/1036C22C21/00C22C32/0089C22F1/04B22D18/02C22C1/1073
Inventor 侯华田晋忠文志勤邓世杰赵宇宏
Owner WENXI COUNTY REGAL MAGNESIUM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products