Research On Iron-based Amorphous Alloy High Efficient Three-phase Asynchronous Motor

As a new type of double green soft magnetic functional material, iron-based amorphous alloy has excellent magnetic properties, corrosion resistance, wear resis-tance, high hardness, high resistivity, electromechanical coupling performance and many other powerful performances. Its use for motor stator core instead of traditional silicon steel sheet can develop energy-saving, green, environmental protection and efficient motors. These motors can be widely used in aviation and military equipment, electronic and computer equipment, vehicles, wind and hydroelectric generator, in-duction and permanent magnet motor and other fields. This paper reviews the present situation of iron-based amorphous alloys, iron-based amorphous alloy motor, amorphous alloy stator core forming process research and analyzes the future devel-opment of iron-based amorphous alloy and related products, consideres that iron-based amorphous alloy motor will be a new kind of efficient motor in the near future, its wide application will be more beneficial to save energy and protect envi-ronment.This paper mainly focuses on the research on iron-based amorphous alloy high efficient three-phase asynchronous motor, the main contents include properties of iron-based amorphous alloy, iron-based amorphous alloy stator core, iron-based amorphous alloy stator core forming process and the test method of motor.The research on properties of iron-based amorphous alloy is mainly on annealing treatment for the Metglas2605SA1iron-based amorphous alloy, to obtain a relatively constant permeability. This research in view of the amorphous alloy properties de-signed a special protective atmosphere annealing furnace, and through a series of ex-periments to obtain the best heat treatment annealing temperature, the annealing time, heating rate and cooling mode.Design of amorphous alloy stator core includes stator slot type selection and the groove size determination. In this study, semi-closed pear shaped groove was selected, specific design of groove size is the first selection of stator teeth flux density, yoke flux density and air gap flux density. calculates the required width of teeth and height of voke. then by drawing to get all the groove size. at last check the slot filling rate and make the necessary adjustment. From the check result, the designed stator core satisfied the requirements.Forming process of iron-based amorphous alloy stator core is the key technology of iron-based amorphous alloy motor development, including shearing of amorphous strip, stacking and clamping of amorphous sheet, impregnating of amorphous alloy laminated rods, bonding and curing of amorphous alloy laminated rods and forming process of stator core, in which the impregnating of amorphous alloy laminated rods and the forming process of stator core are the key technologies. In this study we de-signed the amorphous alloy sheet clamping device, vacuum impregnating device, and the iron-based amorphous alloy stator core was manufactured by electric spark line cutting machining. In the experiments, two impregnation process, vacuum impregna-tion process and use steel plate clamping the amorphous alloy laminated rods before cutting improve the processing quality of amorphous alloy stator core effectively.Motor test mainly to measure electrical quantities, non-electrical quantities, magnetic quantities, motor parameters and some related properties. Performance test is accomplished through type test. This paper selects some parameters and perfprmance the amorphous alloy motor need to mesure and the testing method, test-ing instruments, related standards are studied. The testing method. testing instruments and related standards for amorphous alloy motor are chosen and discussed in detail.