Composite material of injection-molded plastic and soft magnetic powder and preparation method of composite material

A composite material and injection molding technology, which is applied in the fields of inorganic material magnetism, inductor/transformer/magnet manufacturing, electrical components, etc. Problems, improve the filling rate, the method is simple and easy to control the effect
CN105741997AActive Publication Date: 2016-07-06SHENZHEN PENGHUI FUNCTIONAL MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN PENGHUI FUNCTIONAL MATERIAL CO LTD
Publication Date
2016-07-06

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Abstract

The invention provides a composite material of injection-molded plastic and soft magnetic powder and a preparation method of the composite material. The composite material comprises the following components in parts by weight: 80-90 parts of soft magnetic powder, 8-18 parts of high-fluidity plastic, 0.08-0.09 part of a coupling agent, 8-9 parts of a solvent, 1-2 parts of a plasticizer and 0.1-0.3 part of an antioxidant, wherein the melt index of the high-fluidity plastic under the conditions of 300 DEG C and 2.16Kg is greater than or equal to 30g / 10min; and the soft magnetic powder is coated with the coupling agent and the solvent to form a soft magnetic powder coating in the composite material.
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Description

technical field

[0001] The invention belongs to the field of soft magnetic materials, in particular to an injection-molded plastic and soft magnetic powder composite material and a preparation method thereof. Background technique

[0002] Soft magnetic materials refer to magnetic materials with low coercive force and high magnetic permeability, which are widely used in the fields of inductive materials, wave absorbing materials and magnetic isolation materials. The composition of soft magnetic materials mainly includes iron-based metal alloys, ferrite, and carbonyl iron powder. Among them, iron-based metal alloys mainly include iron-silicon, iron-silicon-aluminum, iron-silicon-chromium, iron-nickel, iron-nickel-molybdenum, etc. Ferrite mainly includes manganese zinc ferrite and nickel zinc ferrite.

[0003] At present, there are many soft magnetic molding processes, mainly including the following: compression molding + sintering process; tape casting + sintering process; ta...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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