Method for splicing and processing sintered neodymium iron boron magnetic balls

Abstract

The invention discloses a method for splicing and processing a magnetic ball through sintered neodymium iron boron, and belongs to the field of sintered neodymium iron boron processing. According to the scheme, a motor drives a heat conduction rod to drive a semi-closed filter cartridge to rotate, impurities in neodymium iron boron magnet blank powder are screened out, and meanwhile, residual impurities on the semi-closed filter cartridge are brushed off through a spherical bag and a cleaning brush; along with work of a motor and heat conduction of a heat conduction rod, a memory extrusion sheet is heated and bent, a spine is driven to pierce a heat insulation film, dry ice is promoted to sublimate into carbon dioxide for heat absorption and cooling, and the carbon dioxide is blown into a telescopic air bag and extends to extrude a spherical bag to be in an ellipsoid shape, so that the cleaning area is increased, and the screening and filtering effect is enhanced; and the rotating fan blades rotate under the flowing of carbon dioxide to drive the cam to rotate, so that the spherical bag is intermittently extruded to do telescopic motion and is intermittently contacted with the semi-closed filter cartridge in the rotating process, the filtering is not easily influenced, and meanwhile, residual impurities on the cleaning brush are conveniently thrown off.

Description

technical field [0001] The invention relates to the field of sintered NdFeB processing, in particular to a method for splicing and processing sintered NdFeB magnetic balls. Background technique [0002] NdFeB magnets are tetragonal crystals formed by neodymium, iron and boron. They have excellent magnetic properties. They are generally divided into sintered NdFeB and bonded NdFeB. Sintered NdFeB has good magnetic properties. It can be widely used in many fields such as military, electronics, energy, medical treatment, light industry, etc., and has become one of the important material foundations for high technology, emerging industries and social progress. In recent years, sintered NdFeB magnets have been widely used in wind power generation, hybrid vehicles It is widely used in low-carbon economic fields such as pure electric vehicles and energy-saving home appliances. The continuous expansion of application fields not only requires magnets to have better magnetic propertie...

AI Technical Summary

Problems solved by technology

[0003] During the processing of spherical sintered NdFeB magnets, it is necessary to go through the process of screening to remove the impurities in the NdFeB magnet blank powder and ensure the processing quality. However, in the existing technology, the impurities are easy to block the screen during screening, which is not conducive to its Screening, reduced screening efficiency

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