High-performance magnetic-conductive alloy for electroacoustic device, and preparation method of high-performance magnetic-conductive alloy

Abstract

The invention relates to high-performance magnetic-conductive alloy for an electroacoustic device, and a preparation method of the high-performance magnetic-conductive alloy. The alloy comprises the following chemical components in percentage by weight: 20.0 to 40.0 percent of Co, 0.2 to 1.5 percent of B, 0.10 to 0.25 percent of Mn, 2.0 to 4.0 percent of Zr, 0.2 to 1.0 percent of Ni, 1.0 to 2.5 percent of V, less than or equal to 0.15 percent of Si, less than or equal to 0.2 percent of Cu, less than or equal to 0.01 percent of C, less than or equal to 0.01 percent of P, less than or equal to 0.01 percent of S and the balance of Fe. The alloy is prepared by the following steps: performing composition proportioning, performing vacuum induction furnace smelting, performing vacuum self-consumption remelting, performing forging processing and performing heat treatment. Compared with the prior art, the alloy improves the temperature stability on the premise of maintaining high-saturation magnetic induction intensity and has two advantages of high saturation and temperature stability, so that the alloy can be used cooperatively with permanent magnetic alloy, the magnetic field intensity and the temperature stability are improved, and the sound intensity and the tone quality of the electroacoustic device are improved.

Description

technical field [0001] The invention belongs to the field of soft magnetic alloys, in particular to a high-performance magnetically permeable alloy for electroacoustic devices and a preparation method thereof. Background technique [0002] Soft magnetic alloys are widely used in the radio electronics industry, precision instruments and meters, remote control and automatic control systems, among which iron-cobalt alloys are suitable for high saturation magnetic induction materials and high-performance soft magnetic materials, but the mechanical properties of binary iron-cobalt alloys Not good, the resistivity is low, and the processability can be improved by adding an appropriate amount of chromium and vanadium. For example, the invention patent application with the Chinese application number No. 201510896915.X discloses 'an ultra-high-strength soft magnetic alloy strip, its preparation method and heat treatment method for its parts'. , improving the mechanical properties of...

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Problems solved by technology

In the prior art, there have been no reports on iron-cobalt-based soft magnetic alloys with high saturation and high temperature stability

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