A kind of samarium cobalt permanent magnet material ball mill wet powder rapid drying device and method

Abstract

A device and method for rapidly drying samarium-cobalt permanent magnet material ball mill wet powder, the method comprising the following steps: (1) connecting and arranging a vacuum filtration device; (2) pouring samarium cobalt permanent magnet material ball mill wet powder into the Buchner funnel powder, turn on the vacuum pump, and filter the ball mill wet powder; (3) Pour most of the filtered gasoline powder into a flat-bottomed stainless steel pan and spread it completely, and place it under a cabinet air conditioner for further drying. This method can quickly realize the drying of the ball-milled wet powder of samarium-cobalt permanent magnet material, and the content of residual gasoline in the powder can be reduced to less than 5%, which meets the requirements of the subsequent process, and can replace the traditional method of heating in a vacuum oven and extracting air for drying. The operation is simple, the energy consumption is low, and the production efficiency is high. It can be used in the batch continuous production line of samarium cobalt permanent magnet materials, and has strong practicability.

Description

technical field [0001] The invention relates to a fast drying device and method for ball milled wet powder of samarium cobalt permanent magnet material. Background technique [0002] Samarium cobalt permanent magnet material is a new type of functional material developed since the 1960s. It is widely used in motors, instruments, sensors, detectors, engines, radars and other high-tech fields. The method of preparing samarium-cobalt permanent magnet materials in industrial production is mainly powder metallurgy. The general production process is: batching → smelting → powder making → molding → sintering → tempering → magnetic detection → post-processing → surface treatment → inspection → finished product. [0003] Ball milling is one of the milling methods of samarium cobalt permanent magnet materials, and it is a wet grinding method using aviation gasoline as the grinding medium. The powder must be dried before it can be molded and pressed. At present, the vacuum drying met...

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Problems solved by technology

However, experiments have proved that this method is inefficient, takes a long time, and consumes a lot of energy. It is only suitable for laboratory research and is not suitable for industrial mass production.

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