Preparation method and system device of metal-based composite board

Abstract

The invention provides a preparation method and system device of a metal-based composite board, according to the preparation method, a metal-based melt is cooled to be semi-solid slurry, the semi-solid slurry is mixed with reinforced particles, cast rolling is conducted after electromagnetic vibration, and the metal-based composite board with small crystal grains is obtained. The grain size of the composite board is reduced, and the tensile strength and elongation at break are improved; the system device for the preparation method comprises a mixing device, an outlet channel arranged on one side of the lower portion of the mixing device, an electromagnetic vibration device and a cast rolling device, wherein the electromagnetic vibration device and the cast rolling device are sequentially connected with the outlet channel. The device is simple in structure and high in efficiency.

Description

technical field [0001] The invention relates to the technical field of material forming, in particular to a preparation method and a system device of a metal matrix composite plate. Background technique [0002] Continuous casting and rolling of metal alloys refers to the process in which metal alloy melts undergo rolling deformation at the same time as continuous casting and solidification. The liquid metal alloy is directly poured into the roll gap, and the roll not only acts as a mold, but also presses and deforms the metal at the same time. This process is also called liquid rolling or ingotless rolling. The distance from the front edge of the feeding nozzle to the center line of the casting roll becomes the casting area. When the liquid metal enters the casting area through the feeding nozzle, it immediately meets the two rotating casting rolls, and the heat of the liquid metal continuously flows from the vertical direction. It is transmitted to the casting roll in the...

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Problems solved by technology

[0004] CN105312520B discloses a continuous casting and rolling method for manufacturing silicon carbide particle-reinforced aluminum-based composite profiles. The silicon carbide particle-reinforced aluminum-based composite slurry is prepared by a mechanical stirring method, and is continuously and evenly injected into the two castings through the flow distribution assembly. In the casting-rolling molten pool composed of roll units, the continuous casting-rolling forming of silicon carbide particle-reinforced aluminum-based composite profiles is realized, but the grains of the metal alloy are coarse, and the mechanical properties of the metal alloy casting-rolling sheet are poor

[0005] CN110935852A discloses a continuous fiber-reinforced metal-matrix composite strip preparation equipment and method. The manufacturing equipment includes a fiber wire feeding mechanism, a pouring front box, a casting and rolling mechanism, and a cooling system. The fiber wire feeding mechanism is provided with a front pressing plate, The rear platen and fiber protection gas circulation system have the functions of fiber gas protection and tensioning, but the grains of the metal alloy are coarse, and the mechanical properties of the metal alloy cast-rolled sheet are poor

[0006] CN1325197C discloses a twin-roll ultra-high-speed continuous casting machine for magnesium thin plate strip, which consists of coagulation rolls, forming rolls, and integrated front box overflow nozzles, and is a twin-roller that drags liquid metal by rotating coagulation rolls In the continuous casting machine, the solidification and forming of the magnesium sheet and strip are completed at different positions on the solidification roll and the forming roll, but the grains of the metal alloy are coarse, and the mechanical properties of the metal alloy cast-rolled plate are poor

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