A magnetic ring based on engineering plastics as a carrier

Abstract

The invention discloses a high-performance magnetic ring based on engineering plastics as a carrier, which includes a ring-shaped engineering plastic layer containing ferrite materials and a metal ring skeleton, and the ring-shaped engineering plastic layer is wrapped in the metal ring through an injection molding process of an injection molding machine On the skeleton, the metal ring skeleton is a "T" or "half T" shaped metal ring skeleton, and the chamfer at the lower part is the inner diameter of the assembly; the ring-shaped engineering plastic layer containing ferrite material is injected by an injection molding machine Immediately after orientation, demagnetization, machining and re-magnetization of the magnetic powder in all directions, it can continuously emit signals perpendicular to the N / S pole phase of the engineering plastic layer. The patent of this invention mainly solves the problems of ozone resistance, aging resistance, oil resistance, chemical corrosion resistance, and poor impact resistance of the magnetic ring with NBR as the main rubber and plastic material as the base material. In addition, the residual magnetism, maximum magnetic energy product, The magnetic properties such as intrinsic coercive force have been greatly improved.

Description

technical field [0001] The invention belongs to the field of magnetic rings, and in particular relates to a magnetic ring based on engineering plastics as a carrier. Background technique [0002] The magnetic ring with engineering plastic as the carrier is mainly composed of a metal ring skeleton and a ring-shaped engineering plastic layer containing ferrite material. After the engineering plastic layer is magnetized, it will continuously emit N / S pole phase signals perpendicular to the engineering plastic layer, usually in the form of NBR as the main body of rubber and plastic material as the base material of the magnetic circle ozone resistance, aging resistance, oil resistance, chemical corrosion resistance, impact resistance and other problems, while the magnetic properties of rubber and plastic magnetic powder is relatively weak, can not meet the requirements of automobile bearings or Hub unit requirements. [0003] The role of the magnetic ring: [0004] 1. It can re...

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Problems solved by technology

[0008] In order to solve the problems of poor ozone resistance, aging resistance, oil resistance, chemical corrosion resistance and impact resistance of the magnetic ring with NBR as the base material, the present invention provides a magnetic ring based on engineering plastics, which greatly improves the remanence , maximum magnetic energy product, intrinsic coercive force and other magnetic properties, and 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 at the same time, and The sealing ring works together to play a sealing role and reduce costs

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