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

A giant magnetostrictive and rare-earth alloy technology, which is applied in the direction of material selection for magnetostrictive devices, manufacture/assembly of magnetostrictive devices, manufacture/assembly of piezoelectric/electrostrictive devices, etc., can solve the cost Problems such as high difficulty to drop, unloadability, and high material brittleness

Inactive Publication Date: 2011-06-15
四平道宇金属材料研发有限公司
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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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  • Preparation process and equipment of powder metallurgic multicomponent rare-earth alloy giant-magnetostrictive material
  • Preparation process and equipment of powder metallurgic multicomponent rare-earth alloy giant-magnetostrictive material

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Embodiment Construction

[0086] As shown in Figure 1, the preparation process and equipment of the powder-metallurgy multi-element rare earth alloy giant magnetostrictive material of the present invention include multi-element component ratio, ultrasonic solid-phase stirring and mixing, low-temperature isostatic pressing of powder, successive sintering and shaping, and product cleaning Packaging and other 5 relatively independent process technology units.

[0087] As shown in accompanying drawing 1, the described multi-component material proportioning process technology unit is based on the excellent characteristics of single material, abundant resources, low price, easy purification and manufacture, and can interact and compensate each other after combination and combination, so as to obtain the best The composition ratio principle of good magnetostrictive effect and good mechanical and physical properties is based on the existing widely used metal magnetostrictive materials, which are mixed with a la...

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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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Application Information

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IPC IPC(8): C22C1/04H01L41/22H01L41/47
CPCH01L41/20H01L41/47H10N35/85H10N35/01
Inventor 袁红霞孙道宇
Owner 四平道宇金属材料研发有限公司
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