A kind of preparation method of new energy vehicle magnetic core
A new energy vehicle and magnetic core technology, applied in the processing field, can solve the problems of insufficient surface finish, poor performance and high cost of the magnetic core, and achieve the effects of uniform product structure, improved performance and improved yield.
Active Publication Date: 2019-06-14
山东恒瑞磁电股份有限公司
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In previous applications, patent application No. 201210097053.0 introduced a high permeability magnetic core manufacturing method, patent application No. 201510962086.0 introduced a ferrite powder sintering process, and patent application No. 201510962025.4 The application introduces a method for preparing an E-type magnetic core. Although the technical solution of the above patent application can improve productivity and can be used in the manufacture of magnetic cores for charging new energy vehicles, the process mainly includes dipping silver paste at the ends of the magnetic core and high-temperature sintering. , electroplating nickel, tin and other processes, which have the disadvantages of high energy consumption, large pollution, high cost and poor reliability
[0004] Moreover, the current sintered and polished magnetic core has insufficient surface finish and poor performance
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[0027] The concrete implementation of the present invention is described in detail below, it is necessary to point out here that the following implementation is only used for further description of the present invention, and can not be interpreted as limiting the protection scope of the present invention. Some non-essential improvements and adjustments still belong to the protection scope of the present invention.
[0028] The invention provides a new energy vehicle magnetic core polishing method, which specifically includes the following steps:
[0029] Select ferrite powder with uniform particle size and good activity and pour it into the mixer with a rotating speed of 130r / min. The ferrite powder includes ferric oxide, ferrocene and manganese oxide powder. At the same time, the mass The percentage is 2wt% TbF x Add it into the mixer, where x represents the number of atoms, and the mixer can choose a three-dimensional mixer. At a temperature of 120°C in the mixer, evenly ad...
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Abstract
The invention discloses a magnetic core polishing method for a new energy automobile. The magnetic core polishing method comprises the following steps: selecting ferrite powder with uniform granularity and excellent mobility for stirring, adding TbFx and copper-tin alloy powder into a stirrer in steps to be stirred, pouring ingredient additives, performing doping treatment, performing pre-sintering treatment, crushing the obtained granulated product into powder, screening qualified powder, eliminating defective powder, pressing into a strip-shaped green body, cleaning and drying, cutting and abrading to obtain a magnetic core, and performing polishing treatment, thereby obtaining the metal coating. The method is environmentally friendly, low in energy consumption, excellent in performanceof magnetic core products and high in reliability.
Description
technical field [0001] The invention relates to the field of processing, in particular to a method for a magnetic core of a new energy vehicle. Background technique [0002] The automobile industry is one of the important pillar industries of the national economy and plays an important role in the development of the national economy and society. The emergence of new energy electric vehicles can not only effectively alleviate the pressure on energy and the environment, but also promote the urgent task of sustainable development of the automobile industry. It is also a strategic measure to accelerate the transformation and upgrading of the automobile industry and cultivate new economic growth points and international competitive advantages. [0003] The charging of new energy electric vehicles requires supporting charging piles. However, the magnetic core is one of the important components, and its performance directly affects the service life and charging effect of the chargi...
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IPC IPC(8): H02K1/02C04B35/26C04B35/622C04B41/51C04B41/52C04B41/90B24B31/03
CPCB24B31/03C04B35/2658C04B35/622C04B41/009C04B41/51C04B41/52C04B41/90C04B2235/3262C04B2235/40H02K1/02
Inventor 赵铁钧赵序生时洪勇
Owner 山东恒瑞磁电股份有限公司