High-performance magnetic ring with engineering plastic as carrier

Abstract

The invention discloses a high-performance magnetic ring with engineering plastic as a carrier. The high-performance magnetic ring comprises an annular engineering plastic layer containing ferrite materials and a metal ring skeleton. The annular engineering plastic layer is arranged on the metal ring skeleton through an injection molding technology of an injection molding machine in a wrapping mode. The metal ring skeleton is in a T or semi-T shape, and the chamfering position of the lower portion of the metal ring skeleton serves as an assembling inner diameter. The annular engineering plastic layer containing the ferrite materials conducts orientation, demagnetization, machining and remagnetization on magnetic powder in four directions immediately after injection molding is conducted on the annular engineering plastic layer through the injection molding machine and then can continuously transmit signals perpendicular to phases of N / S electrodes of the engineering plastic layer. The high-performance magnetic ring mainly solves the problems that a magnetic ring with NBR-based rubber and plastic materials serving as base materials is poor in ozone resistance, aging resistance, oil and chemical medicine corrosion resistance, impact resistance and the like; besides, residual magnetism, the maximum magnetic energy product, the intrinsic coercive field and other magnetic performance are greatly improved.

Description

technical field [0001] The invention belongs to the field of magnetic rings, and in particular relates to a high-performance magnetic ring based on engineering plastics as a carrier. Background technique [0002] The high-performance magnetic ring with engineering plastics as the carrier is mainly composed of a metal ring skeleton and a ring-shaped engineering plastic layer containing ferrite materials. After the engineering plastic layer is magnetized, it will continuously emit signals perpendicular to the N / S poles of the engineering plastic layer. Usually, the magnetic ring with NBR as the main rubber and plastic material as the base material has problems such as ozone resistance, aging resistance, oil resistance, chemical corrosion resistance, and poor impact resistance. High performance requirements for bearings or hub units. [0003] The role of high-performance magnetic circle: [0004] 1. It can reduce the outer diameter of the matching steel parts, reduce the cost...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of ozone resistance, aging resistance, oil resistance, chemical corrosion resistance and impact resistance of magnetic rings based on NBR, the present invention provides a high-performance magnetic ring based on engineering plastics, which greatly improves Magnetic properties such as residual magnetism, maximum magnetic energy product, intrinsic coercive force, etc., at the same time obtain a larger area of ​​continuous signal, reduce the outer diameter of the matching steel parts, reduce costs, save energy, and replace a single sealing ring cover , work together with the sealing ring to play a sealing role and reduce costs

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