Steel wire drawing method

Abstract

The invention provides a steel wire drawing method. The steel wire drawing method comprises the following steps of: applying a lubricating cooling agent to the surfaces of raw metal wires, and then carrying out first-stage drawing, annealing treatment, second-stage drawing and heat treatment in sequence to obtain steel wires, wherein the lubricating cooling agent is prepared from carbon nanotubes, epoxy resin, an aminosilane coupling agent, an emulsifying agent and water. The lubricating cooling agent adopted by the steel wire drawing method has the effects of lubrication and cooling in a drawing process, ensures the smooth finish of steel wires in the drawing process, reduces friction and prevents tensile failure. As the lubricating cooling agent contains the carbon nanotubes, the lubricating cooling agent prevents the steel wires from being oxidized at a high temperature. The steel wire drawing method has the beneficial effects that the preparation method has good operation continuity; the surfaces of prepared steel wires have good smoothness, and the prepared steel wires have relatively good toughness, relatively thin diameter and relatively high strength; the internal stress is reduced through intermediate annealing treatment, so that the steel wires are less likely to suffer tensile failure during secondary drawing; and the quench tempering after drawing ensures that the steel wire finished products have higher hardness than existing steel wires.

Description

technical field [0001] The invention relates to the technical field of metal processing, and more specifically, to a steel wire drawing method. Background technique [0002] With the development of the economy and society, people put forward higher requirements for steel wire, one of the materials often used in daily life. In addition to the good mechanical properties of other metal materials, it also adds higher strength, Greater toughness, thinner diameter and other requirements. Only by producing ultra-fine steel wires with higher strength and higher hardness can people meet the material requirements of people in different environments in daily life. [0003] At present, the main process of commonly used steel wire production includes raw material selection, scale removal, drying, coating treatment, heat treatment, wire drawing, coating treatment and other complex processes, and the total compression rate of the finished steel wire is only 78-80%. Insufficient drawing a...

AI Technical Summary

Problems solved by technology

This method does not carry out intermediate heat treatment, which cannot avoid excessive work hardening of finished silk, and cannot be used for products requiring low tensile strength.

In addition, this method has special requirements for the wire drawing machine and higher requirements for the concentration of the phosphating solution, and it is difficult to control it in actual production, so this method is not easy to popularize and use