Prestressed aluminum-cladding stranded wire

Abstract

A production process of a prestress aluminum-cladding stranded wire comprises steps as follows of : executing surface treatment to the wire rod by conventional acid pickling, awning and drying, then through a drawbench drawing the steel wire to a desired specification, enabling the steel wire intensity to achieve certain intensity. Before entering a continuous extruding cladding machine, the steel wire is washed, dried, and preheated. Meanwhile, an electrician aluminum pole or an aluminum alloy pole is washed, dried and straightened. The aluminum pole enters from another end of cladding machine, and aluminum material is extruded by the continuous extruding cladding machine to wrap outside the steel wire. The next step is cooling, drying and recovering the wire. Then aluminum-cladding steel wire is intertwisted for forming stranded wire. After heating in an intermediate frequency stove, and carrying on the stabilizing treatment, the prestress aluminum-clad stranded wire is formed finally. The prestress aluminum-clad stranded wire in this invention has high intensity and has low relaxation and corrosion resistant properties.

Description

technical field [0001] The invention relates to a bimetallic composite material, in particular to an aluminum-clad steel strand for prestressing. Background technique [0002] Aluminum-clad steel strands for prestressing are mainly used in the manufacture of bridge cables. Existing bridge cable manufacturing mainly uses prestressed smooth steel wire and steel strand, prestressed galvanized steel wire or steel strand, and prestressed smooth steel wire and steel strand, prestressed galvanized steel wire and steel strand all exist easily to corrode, The problem of short service life, the bridge cables made by them also have these problems, which greatly reduce the service life of the bridge. Contents of the invention [0003] The purpose of the present invention is to provide a high-strength, low-slack, high-corrosion-resistant prestressed aluminum-clad steel strand for bridge cables. [0004] The manufacturing process of the aluminum-clad steel strand for prestressing in t...

AI Technical Summary

Problems solved by technology

Existing bridge cable manufacturing mainly uses prestressed smooth steel wire and steel strand, prestressed galvanized steel wire or steel strand, and prestressed smooth steel wire and steel strand, prestressed galvanized steel wire and steel strand all exist easily to corrode, The problem of short service life, the bridge cables made of them also have these problems, these problems greatly reduce the service life of the bridge