A kind of sintering device and using method of sintered NdFeB magnet

Abstract

The invention discloses a sintering device of a sintered NdFeB magnet and a method for using the same, and relates to the technical field of NdFeB magnet production, including a furnace body, a furnace chamber and a water-cooled bent pipe. The furnace body includes a furnace chamber, and one side of the furnace chamber is fixedly installed There is a connecting plate, the front of the connecting plate is provided with a groove, and the interior of the groove is provided with a lifting rod, and the outer wall of the lifting rod is slidingly connected with a heating element, the number of the heating element is two, and one side surface of each heating element is Fixed installation with water-cooled elbow. The present invention adopts the combined setting of the internal rotating piece and the drainage rotating piece of the water-cooled elbow, and sets unequal flow guiding pieces at both ends of the rotating piece, so that one end has power, and a certain force is generated under the drive of the water flow to divert the water flow. When turning to the drainage rotor, the water direction will be turbulent due to the filling of the pipe when turning to the drainage rotor, thereby slowing down the water flow rate and increasing the time for the cold water to contact the heating element. The water flow circulates in the pipe in a spiral form, making the water Constantly do heat-absorbing and cooling exercises.

Description

technical field [0001] The invention relates to a sintering device, relates to the technical field of NdFeB magnet production, in particular to a sintering device for sintering NdFeB magnets and a use method thereof. Background technique [0002] The orbital servo motor is mainly composed of a stator and a rotor. The rotor is generally made of permanent magnets, and it uses neodymium magnets. Neodymium magnets are also called neodymium iron boron magnets, which are tetragonal crystal systems formed by neodymium, iron, and boron. Crystal, the magnetic energy product of this kind of magnet is greater than that of samarium cobalt magnet. The magnet is the permanent magnet second only to the absolute zero holmium magnet, and it is also the most commonly used rare earth magnet. NdFeB magnets are widely used in electronic products, such as hard drives, mobile phones, earphones, and battery-powered tools. [0003] Sintering is a necessary step in the production of NdFeB magnets, a...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a sintering device for sintering NdFeB magnets and its use method, one of which is to have a heat dissipation function and solve the problem that the temperature inside the furnace cannot be gradually lowered after sintering is completed; the other The first purpose is to solve the problem of the degree of heating of the magnet in the furnace, so as to achieve the effect of increasing the sintering quality of the magnet without using a stirring device, and the other purpose is to have mechanical feeding, which is convenient for placing and taking out the magnet , to avoid direct contact between the staff and the heating element, which solves the problem of taking

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