Process optimization method for continuous drawing die of copper wire

Abstract

The invention provides a process optimization method for a continuous drawing die of a copper wire. The process optimization method comprises the steps that S1, the diameter of a die sizing belt is determined according to the wire inlet diameter d0 and the wire outlet diameter dm of a copper wire needing drawing production, and the diameter d of the die sizing belt is equal to the wire outlet diameter dm; and S2, the effective contact length L1 of the selected die and the copper wire is determined according to the diameter d of the die sizing belt determined in the step S1. According to the method, the influence of the structural composition of an existing die and parameters of all parts on the quality of the copper wire drawing process is researched, the range value of the parameters of the drawing die is controlled, uneven deformation in the copper wire drawing machining process can be reduced to the maximum extent, meanwhile, elastic storage energy is stable in the copper wire drawing machining process, and meanwhile, the residual stress is low, and the cone length is twice of the actual deformation area length of the die, so that the die cone can completely participate in lubrication, and the wire processing quality is improved by setting the die with corresponding proportions and parameters.

Description

technical field [0001] One or more embodiments of this specification relate to the technical field of drawing dies, in particular to a process optimization method for copper wire continuous drawing dies. Background technique [0002] The continuous drawing process of copper wire mainly includes three parts: drawing, on-line annealing after drawing, and stranding. The drawing of copper wire is to make the copper wire plastically deform through the drawing die, so as to realize the drawing. The selection and the quality of the mold itself play a leading role in the continuous cold drawing process of copper wire, which determines whether the drawing process is carried out stably and continuously. The wire drawing die is a very important consumable in the production of various metal wire drawing. The cost of molds and wire drawing dies accounts for a very large proportion of the drawing cost. As a wire rod manufacturer, how to reduce costs, obtain stable and long-term drawing, a...

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Problems solved by technology

[0004] In view of this, the purpose of one or more embodiments of this specification is to propose a process optimization method for copper wire continuous drawing dies to solve the problem that the life of the drawing die is short, and it is necessary to determine the appropriate geometric parameters of the die to prolong the service life of the drawing die The problem

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