Preparation device and method of annular electromagnetic material sample piece

Abstract

The invention discloses a preparation device and method of an annular electromagnetic material sample piece. The device comprises a base, an inner seat, an inner rod and a filling cylinder. One through hole is formed in the base, the inner seat and the filling cylinder respectively. The inner rod is movably connected in the through hole of the base and has a protruding part. The inner seat sleeves on protruding part of the inner rod and the lower end of the inner seat is fixed in the through hole of the base. The inner rod still has an additional height relative to the inner seat. The filling cylinder sleeves the outer parts of the inner seat and the inner rod. A gap is formed respectively between the through hole inner edge of the filling cylinder and the outer edges of the inner rod and the inner seat. The electromagnetic material is filled into the filling cylinder and is compacted downwards to form an annular sample piece. According to the invention, the interest of students on the experiment course can be improved, the teaching experiment effect is improved, and the practical operation capacity and the engineering application capacity of the students are improved.

Description

technical field [0001] The invention relates to a preparation device and method for an annular electromagnetic material sample. Background technique [0002] In the teaching experiment activities of relevant courses of materials major in colleges and universities, in order to deepen students' understanding of the knowledge points of electromagnetic materials, improve students' interest in experimental courses, improve the effect of teaching experiments, and cultivate students' practical operation ability and engineering application ability, in the experiment process, let It is an effective method for students to make experimental samples of electromagnetic materials and carry out testing and verification teaching experiments. At present, in order to carry out teaching experiments, the prepared teaching experiment samples of solid medium materials are usually provided, which mainly have the following disadvantages: [0003] (1) Since the experimental samples of solid materia...

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Problems solved by technology

[0003] (1) Since the experimental samples of solid materials need to be processed by CNC machine tools through turning, planing and other processes, only the finished teaching experimental samples can be provided, and it is difficult to realize the on-site production of electromagnetic material teaching experimental samples in teaching experimental activities

[0004] (2) The participation of students in the experiment is low, which cannot effectively improve the effect of teaching experiments

[0005] (3) Only confirmatory experiments can be carried out, which has certain limitations on the cultivation of students' practical operation ability

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