Preparation process and equipment of powder metallurgic multicomponent rare-earth alloy giant-magnetostrictive material

Abstract

The invention provides a preparation process and equipment of a powder metallurgic multicomponent rare-earth alloy giant-magnetostrictive material. The preparation process comprises the steps of multicomponent blended material matching, ultraphonic solid-phase stirring and mixing, powder low-temperature isostatic pressing forming, successive sintering shaping and product cleaning and packaging. In the preparation process and equipment, a blended material matching scheme that lanthanide series ductile light rare-earth element monoatomic microbead powder is blended in a high proportion on the basis of metal magnetostrictive material monoatomic microbead powder is designed and selected and the powder metallurgic multicomponent rare-earth alloy giant-magnetostrictive material is successfully produced and manufactured through innovative technologies, i.e. the ultraphonic solid-phase stirring and dispersive mixing, forming mold charging heating, the powder low-temperature isostatic pressing forming, the successive sintering shaping, and the like, equipment and process parameters, and various technical performance indexes already reach a leading domestic level. Nowadays, the powder metallurgic multicomponent rare-earth alloy giant-magnetostrictive material already becomes an important basic function material in the information age and is widely used for the fields of industry, national defense, marine exploration, environmental protection, medicine and health, and the like.

Description

technical field [0001] The invention relates to a magnetostrictive material, in particular to a preparation process and equipment for a powder metallurgy multi-element rare earth alloy giant magnetostrictive material. Background technique [0002] Magnetostrictive materials can realize the conversion between electromagnetic energy (or electromagnetic information) and mechanical energy or acoustic energy (or mechanical displacement information and acoustic information). Therefore, magnetostrictive materials have become the necessary materials for the production and manufacture of power electric-ultrasonic transducers, electric-machine transducers, sensors, oscillators and other core functional components. It has been widely used in industries such as environmental protection and ocean exploration; and with the continuous improvement of the performance and quality of magnetostrictive materials, the application field is constantly expanding. [0003] Since the development of m...

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Problems solved by technology

[0028] The present invention aims at the deficiencies or weaknesses existing in the current technical field of rare earth giant magnetostrictive materials, especially in terms of material composition ratio, since the foreign ternary rare earth alloy TbDyFe chemical composition structure pattern is used, the material itself has resistivity Low, it will produce large hysteresis loss and eddy current loss, resulting in poo

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