Multistage motion magnetic field device for gradient material preparation

Abstract

The invention provides a multistage motion magnetic field device for gradient material preparation. The device comprises a substrate, optoelectronic switches, an optoelectronic switch sliding groove, a stepping motor, a controller, a coupler, a lead screw and a multistage magnetic ring system. The device is characterized in that the substrate is located at the lowest portion of the whole device; the controller is connected with the stepping motor and used for controlling the working parameters of the stepping motor; the stepping motor is connected with the lead screw through the coupler and used for controlling rotation of the lead screw; the lead screw is connected with the multistage magnetic ring system and controls the motion speed and the motion direction of the multistage magnetic ring system; the optoelectronic switch sliding groove and the lead screw are placed in parallel; the two optoelectronic switches are located at the two ends of the sliding groove; and the multistage magnetic ring system is composed of 2 to 10 axially-magnetized magnetic rings, the adjacent magnetic rings are coaxially and reversely arranged, and the interval between the adjacent magnetic rings ranges from 5 mm to 50 mm. By the adoption of the device, the defect that the drive force of a magnetic field adopted in a traditional method is small is overcome, and a functional gradient material with the large component gradient is conveniently and controllably prepared.

Description

technical field [0001] The invention relates to a moving magnetic field device, in particular to a multi-stage moving magnetic field device for gradient material preparation. Background technique [0002] Gradient materials are a class of new materials whose components and microstructures change in gradients, which can relieve thermal stress, so that they can continue to operate in harsh high-temperature environments. It was first proposed by Japanese scholars in 1987, and scientific research institutions in various countries have carried out such research projects one after another. People have made many achievements in the research on the composite theoretical design of thermal stress relaxation FGM, material synthesis technology and structure control methods, and material property evaluation. Important progress and results. Today, the application of functionally graded materials has entered many fields such as aerospace, optical electronics, biomedicine, new energy, and ...

AI Technical Summary

Problems solved by technology

The use of superconducting magnets can generate several 10T gradient magnetic fields, but the equipment is complex and difficult to popularize; the magnetic field strength and magnetic field gradient generated by the electromagnetic coils used are relatively weak; multi-level axially magnetized magnetic rings are used, and the magnetic poles of adjacent magnetic rings Arranged in reverse, the magnetic field of the magnetic ring is effectively compressed to form a multi-level magnetic circuit. The multi-level magnetic circuit design can greatly increase the magnetic field gradient and increase the magnetic driving force of the magnetic field on the magnetic components.

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