Unlock instant, AI-driven research and patent intelligence for your innovation.

A device and method for preparing carbon-reinforced aluminum matrix composites

A technology for strengthening aluminum-based and composite materials, which is applied in chemical instruments and methods, mixers with rotary stirring devices, mixers, etc. , the production cost is low, the effect of improving performance

Active Publication Date: 2021-11-16
SHANDONG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are some technical problems in the preparation of aluminum-carbon composite materials. First, graphene and other materials with graphite structure (such as carbon nanotubes, carbon fibers, graphite particles, etc.) are easy to agglomerate in the aluminum matrix: such as graphene and carbon nanotubes As a nanomaterial, its dispersion is poor, and it is easy to cause agglomeration in the aluminum matrix.
The second is the formation of the interface compound Al4C3: the interface reaction of aluminum-carbon composites is difficult to control, and it is easy to form Al4C3 brittle compounds, which will damage the mechanical properties of the composite material.
The third is that the wettability of carbon materials and aluminum substrates is poor, and it is not easy to form a strong interfacial bond
However, the inventors found that due to the shift of the center of gravity of the liquid during the stirring process, the phenomenon of component segregation is very easy to occur, which has a great impact on the performance of the composite material
And because the density of carbon materials is lower than that of the aluminum matrix and nano-carbon materials are very easy to agglomerate, it is very difficult to directly add them into the aluminum liquid and uniformly disperse them, and there is also the problem of poor interface bonding

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
  • A device and method for preparing carbon-reinforced aluminum matrix composites

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] The preparation chambers described in this disclosure are conventional containers capable of stirring.

[0034] The rotational speed input module described in the present disclosure is a rotational speed controller capable of inputting rotational speed.

Embodiment 1

[0036] Such as figure 1 As shown, this embodiment provides a device for preparing carbon-reinforced aluminum matrix composites, which includes a rotation speed control system, a stirring system, and a lifting system connected in sequence.

[0037] The rotational speed control system includes a rotational speed input module 11 and a motor 10 connected thereto.

[0038] The stirring system includes a preparation chamber 6, and the preparation chamber 6 is covered with a heating and heat preservation device 7, which facilitates stirring immediately after heating, and keeps the temperature during the stirring process to prevent the molten metal from cooling down.

[0039] There is a stirring rod 4 in the preparation chamber 6, and a detachable stirring head 8 is arranged at the lower end of the stirring rod 4. The stirring head 8 is composed of 2 to 4 evenly distributed blades, preferably 4 blades, and the length of the blades is the inner diameter of the preparation chamber 7. 0...

Embodiment 2

[0044] This embodiment provides a method for preparing a carbon-reinforced aluminum-based composite material, and the implementation steps of the method are as follows:

[0045] 1) Melting pure aluminum or aluminum alloy (including forged aluminum alloy, cast aluminum alloy, etc.) in an intermediate frequency induction furnace and removing slag and gas from the molten metal, the melting time is 5-30min.

[0046] 2) Wrap the materials with graphite structure (such as graphene, carbon nanotubes, carbon fibers, graphite particles, etc.) to be added with aluminum foil, or directly add graphite materials and aluminum powder mixed compacts, or other forms of graphite materials and The block formed by mixing aluminum is used as the added phase, and the added phase is placed at the end of the hand-held powder adding device, or the added phase is conveyed by a screw conveyor.

[0047] Because graphene is a nano-particle and its density is lower than that of aluminum liquid, if the powd...

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

No PUM Login to View More

Abstract

The disclosure relates to the field of composite material preparation, mainly relates to carbon-reinforced aluminum-based composite materials, and specifically provides a device and method for preparing carbon-reinforced aluminum-based composite materials. The device includes a speed control system, a stirring system and a lifting system connected in sequence. The stirring system includes a preparation chamber and a stirring rod. The stirring rod is covered with a detachable gland, and the gland is inserted into The baffle in the preparation chamber solution, the gland fits tightly to the edge of the preparation chamber. Avoid the component segregation phenomenon caused by the existence of the stirring center of gravity in the liquid stirring casting method, realize the uniform dispersion of carbon in the aluminum liquid, and improve the bonding between the interfaces.

Description

technical field [0001] The disclosure relates to the field of composite material preparation, mainly relates to carbon-reinforced aluminum-based composite materials, and specifically provides a device and method for preparing carbon-reinforced aluminum-based composite materials. Background technique [0002] With the development of the economy, people's demand for metal materials is increasing. Among them, aluminum is widely used due to its low price, and pure aluminum or aluminum alloys are the most widely used. Although aluminum alloy has excellent mechanical properties, as well as good electrical and thermal conductivity, with the complexity of application scenarios, the requirements for material performance are getting higher and higher, and it is difficult for pure aluminum alloy materials to meet many specific requirements. application in the scene. In the prior art, graphene and other materials with graphite structure (such as carbon nanotubes, carbon fibers, graphit...

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 Patents(China)
IPC IPC(8): C22C1/10C22C21/00C22C32/00B01F15/00B01F7/16C22C47/08C22C47/06C22C49/06C22C49/14C22C101/10C22C121/00
CPCC22C1/1005C22C1/1036C22C21/00C22C32/0084C22C26/00C22C47/08C22C47/06C22C49/06C22C49/14C22C2026/002B01F27/80B01F35/40C22C1/1047
Inventor 田学雷仇法文张效夫蔡武豪郑洪亮
Owner SHANDONG UNIV