Preparation method of high performance halogen free environment-friendly extruded magnetic stripe made of rubber&plastic ferrite and magnetic stripe

Abstract

The invention discloses a preparation method of a high performance halogen free environment-friendly extruded magnetic stripe made of rubber&plastic ferrite. The method is characterized by comprising the following steps: (1) preparing raw material mixture, to be more specific, preparing uniform raw material mixture by mixing ferrite powder, the size of which is between 10 and 200 nanometers, cladding agent and adhesive; (2) extruding a sheet, to be more specific, setting a scope of extrusion thickness for an extruder, feeding the raw material mixture into the extruder, and successively extruding to obtain a plastic magnetic sheet; (3) cutting, to be more specific, cutting the plastic magnetic sheet into predetermined shape and dimension; (4) UV glazing, to be more specific, spraying UV oil polish on a surface of the magnetic sheet, thereby forming a protection film on the surface; (5) magnetizing, to be more specific, magnetizing by placing the magnetic sheet in a magnetic field to obtain a magnetic stripe. The invention also discloses an extruded magnetic stripe of high performance halogen free environment-friendly rubber&plastic ferrite prepared by the method. The invention can be widely applied to the manufacturing field of flexible rubber&plastic magnetic products.

Description

technical field [0001] The invention relates to a polymer composite mixture, in particular to a preparation method and a magnetic strip for manufacturing a high-performance halogen-free environment-friendly rubber-plastic ferrite extruded magnetic strip using nanotechnology for manufacturing high-performance electromagnetic power equipment. Background technique [0002] With the development of society, especially the rapid development of various electric vehicles, maglev trains, high-performance motors, generators and other technologies, the demand for high-performance magnetic products is increasing, and the requirements for product characteristics are also increasing. . [0003] In the prior art, molding, injection and extrusion processes are mostly used in the processing of bonded rare earth magnets, and the magnets produced are rigid and inelastic. However, the molding and injection molding processes require a large number of molds of different specifications, and in In...

AI Technical Summary

Problems solved by technology

[0007] In the prior art, the ferrite powder produced and sold mostly has a particle size of 100-200 mesh, which can meet the production of sintered ferrite magnets, but cannot meet the production of bonded magnets, especially the Production requirements of high-performance plastic magnetic products

Existing plastic magnetic products have deficiencies in many aspects such as flexibility, impact resistance, high temperature resistance, etc., and the thickness of the products produced is relatively large, usually above 1mm, which cannot meet the requirements of micro motors, micro motors and other products. needs

[0008] The preparation method of bonded rubber-plastic magnets in the prior art has been disclosed by many literatures. It generally needs to mix the binder, ferrite magnetic powder and processing aids evenly in proportion. The mixing method adopts the internal mixing method, Open refining method, stirring method or screw mixing method, and then the uniformly mixed rubber material is made into a magnet with a certain thickness by calendering method or flat plate pressing method, and then magnetized and crosslinked. The steps are complicated and the required equipment and raw materials Many, the process and product quality cannot be accurately controlled, and impurities will inevitably be generated during the production process, which affects the final quality of the magnet