A method of polishing magnetic cores of different sizes

Abstract

The invention relates to the field of magnetic core processing, in particular to a method for polishing magnetic cores with different sizes, and aims to provide a magnetic core polishing method which selects different polishing materials according to the magnetic cores of different sizes, ensures polishing effect and decreases breakage ratio of the magnetic cores. The method includes the steps: determining a set value for distinguishing large magnetic cores and small magnetic cores, and comparing the lengths of long edges of the magnetic cores with the set value; adding the magnetic cores into a roller of a polishing machine; adding polishing materials into the roller; adjusting polishing time and frequency, and starting the polishing machine to polish the magnetic cores; cleaning the polished magnetic cores by the aid of diluting agents, and drying the magnetic cores by the aid of a baking oven. When the larger magnetic cores are added into the roller of the polishing machine, the added polishing materials are emery, when the small magnetic cores are added into the roller of the polishing machine, and the added polishing materials are water. The method solves the problem that the breakage ratio of the magnetic cores is high when the magnetic cores are polished by the aid of a mechanical device in the prior art.

Description

technical field

[0001] The invention relates to the field of magnetic core processing, in particular to a method for polishing magnetic cores of different sizes. Background technique

[0002] With the development of electronic information technology, components made of magnetic materials are required to develop in the direction of high frequency, miniaturization and intelligence. As the key components of the circuit, components made of magnetic materials have a strong demand for increasing the frequency of use. They are widely used in computers, mobile phones, automation equipment and electronic transformers. In the production process of ferrite core, it needs to go through the process of powder making, pressing, sintering and so on. In the traditional pressing process, because the mold will have a gap after a period of time, the pressed magnetic core will have burrs, which will affect the appearance. In severe cases, the wire-clad copper wire will be scratched, resulting i...