Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Prestressed aluminum-cladding stranded wire

A technology of prestressed steel strands and aluminum-clad steel, applied in the direction of metal extrusion control equipment, bridges, manufacturing tools, etc., can solve the problems of reduced service life of bridges, short service life, easy corrosion, etc., and prolong service life , Improve the effect of corrosion resistance

Active Publication Date: 2007-09-19
XINHUA METAL PROD
View PDF0 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] A prestressed aluminum-clad steel strand production process is: the prestressed steel strand with wire rod, pickling, boronization, drying by conventional methods for surface treatment, and then drawn into the required specifications of steel wire through a wire drawing machine , so that the strength of the steel wire reaches 1800-1900MPa, the steel wire is cleaned, dried, and preheated to 400-450°C, and then enters the continuous extrusion coating machine; at the same time, the electrical aluminum after cleaning, drying, and straightening Rods or aluminum alloy rods enter from the other end of the continuous extrusion coating machine at the same time. The temperature in the mold cavity of the continuous extrusion coating machine is 450-500°C, the pressure is 60-70MPa, and the coating speed is 120-130 M / min, the aluminum extruded by the continuous extrusion coating machine is wrapped on the surface of the steel wire, and the wire is taken up after cooling and drying to f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Strengthaaaaaaaaaa
Login to View More

Abstract

A making process of prestress aluminium enwraping steel strand includes: surface treating the rod bundle by the conventional method of acid pickling, boronising and drying, then drawing to the steel wire with required specification by the drawbench, making the steel wire to a certain intensity, the steel wire enters into continuous extruding cladding machine after cleaning, drying and preheating; at the same time, the electric aluminium bar or aluminium alloy bar being cleaned, dried and straightened enters from the other end of cladding machine, the continuous extruding cladding machine extrudes aluminium enwraping on the outer surface of the steel wire, and closing wire after cooling and drying; stranding the aluminium enwraping steel wire to the steel strand, heating by intermediate frequency furnace and processing stably to form the prestress aluminium enwraping steel strand at last. The prestress aluminium enwraping steel strand of the invention has characteristics of high strength and underrelaxation, also greatly improving unattached property of the strand and prolonging useful life of the product because of compositing a layer of unattacked aluminium with high purity on the surface.

Description

technical field [0001] The invention relates to a bimetallic composite material, in particular to a prestressed aluminum-clad steel strand. Background technique [0002] Prestressed aluminum-clad steel strands 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 prestressed aluminum-clad steel strand of the present inven...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B21C23/24B21C31/00B21C23/01B21C29/00D07B1/08E01D19/16
CPCB21C1/00D07B2201/2011D07B2501/2023D07B1/0693B21C23/24D07B2205/306
Inventor 何玉明
Owner XINHUA METAL PROD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com