A forming method of a beryllium copper alloy ultrafine wire

Abstract

The application belongs to the technical field of beryllium copper alloy wire processing, and particularly relates to a forming method of beryllium copper alloy ultrafine wire. The method comprises the following steps: alloying and mixing alloying element components of the beryllium copper alloy to form a mixture, melting the mixture by using a vacuum continuous casting method to obtain a base material; performing N-stage drawing on the base material to obtain the beryllium copper alloy ultrafine wire, and the diameter of the beryllium copper alloy ultrafine wire is 0.05-0.015 mm; in the N-stage drawing process, after N-1 stage drawing, an intermediate drawn state wire blank is obtained, when the diameter of the intermediate drawn state wire blank is 0.1 mm, the intermediate drawn state wire blank is subjected to aging solid solution treatment and then drawing, and when the diameter of the intermediate drawn state wire blank is less than 0.1 mm, the intermediate drawn state wire blank is subjected to continuous annealing treatment and then drawing. The application can stably and efficiently prepare the beryllium copper alloy ultrafine wire meeting various strict performance index requirements based on alloy component regulation and through a multi-stage drawing and annealing synergistic process.

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