A surface treatment process for flexible magnetic strips

Abstract

The invention relates to a surface treatment process of a flexible magnetic strip. Among them, the present invention uses parylene as the main raw material component, and uses the method of vacuum vapor deposition to form a layer of protective properties that completely covers the surface of the magnetic strip and has a uniform thickness on the surface of the bonded NdFeB rare earth flexible magnetic strip. The film, after proper modification, can make the magnetic strip fully isolated from water and oxygen, corrosion-resistant, has ideal flexibility and impact resistance, firm attachment, anti-fragmentation, and can withstand ultraviolet radiation and Good touch with the human body and other advantages.

Description

technical field [0001] The invention relates to the field of magnetic therapy products and equipment, more specifically, to a surface treatment process for a flexible magnetic strip that can be used as a magnetic source in magnetic therapy products and equipment. Background technique [0002] A large number of medical studies have shown that the use of magnetic fields to act on human tissues can regulate the nervous system and blood circulation, and has the effect of analgesia and blood stasis. An active extracorporeal physical therapy. For example, the experiments of Sheng Wei Feng et al. published in Med Biol Eng Comput in 2010 in the paper "Static magnetic field exposure promotes differentiation of osteoblastic cells grown on the surface of a poly-L-lactide substrate" proved that at 4000 Gauss (Gs ) strength of the magnetic field in which the cell shape will change significantly and the growth rate will be accelerated. In the paper "Autogenous bone marrowconcurrent with...

AI Technical Summary

Problems solved by technology

The film produced by these materials is too thick, which will affect the performance of the magnetic strip to a certain extent, and the uniformity of the film thickness is relatively poor.

Moreover, the electrophoresis method specifically includes multiple steps such as peeling, degreasing, cleaning, electrophoresis, re-cleaning, solidification, cooling, etc., and it is easy to cause damage to the magnet during the process.

The spraying process is relatively simple, but the uniformity of the film produced is worse than that of the electrophoresis method, and the material loss is also too large

As for surface treatment methods such as metal plating that can produce a uniform thin metal layer, they can only be used for sintered NdFeB rare earth magnets, and are not suitable for bonded magnets used in magnetic therapy products.

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