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

Annealing method for aluminum used for cable and aluminum alloy belt and foil

A technology of aluminum alloy strips and aluminum alloy materials, applied in the direction of metal/alloy conductors, root rods/rods/wires/strip conductors, etc., can solve problems such as poor degreasing effect of aluminum foil, lengthened production process cycle, and increased production cost , to achieve good plasticity, improve production efficiency, and reduce annealing time

Active Publication Date: 2013-01-30
JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
View PDF1 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the annealing of aluminum and aluminum alloy strips and foils for cables mainly adopts the secondary annealing process, and the annealing of finished products adopts the low-temperature and long-term heat preservation annealing method. The phenomenon of grain growth and low elongation; the surface degreasing effect of aluminum foil is not good; at the same time, it causes the lengthening of the production process cycle, the increase of production cost, and the reduction of production efficiency

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 1

[0013] Anneal the finished products of 8011 aluminum alloy strips and foils produced by casting and cold rolling. The annealing method: quickly heat the furnace temperature to 190°C and keep it for 1 hour; continue to heat it to 390°C and keep it for 15 hours, then cool down To 345°C, keep warm for 12 hours; continue to cool down to 195°C, keep warm for 2 hours. After annealing, the mechanical properties of aluminum and aluminum alloy strips and foils for cables are tested: 109-112MPa, elongation ≥ 18%; the surface is brushed with water to reach Class A.

Embodiment 2

[0015] Anneal the finished products of 8011 aluminum alloy strips and foils produced by casting and cold rolling. The annealing method: quickly heat the furnace temperature to 200°C and keep it for 2 hours; continue to heat it to 400°C and keep it for 16 hours, then cool down To 350 ℃, keep warm for 10 hours; continue to cool down to 200 ℃, keep warm for 2 hours. After annealing, the mechanical properties of aluminum and aluminum alloy strips and foils for cables are tested: 107-110MPa, elongation ≥ 20%; the surface brushed with water reaches Class A.

Embodiment 3

[0017] Anneal the finished products of 8079 aluminum alloy strips and foils produced by casting and cold rolling. The annealing method: quickly heat the furnace temperature to 210°C and keep it for 3 hours; continue to heat it to 410°C and keep it for 14 hours, then cool down To 360°C, keep warm for 8 hours; continue to cool down to 190°C, keep warm for 3 hours. After annealing, the mechanical properties of aluminum and aluminum alloy strips and foils for cables are tested: 105-107MPa, elongation ≥ 22%; surface brushing water reaches A level.

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
elongationaaaaaaaaaa
elongationaaaaaaaaaa
elongationaaaaaaaaaa
Login to View More

Abstract

The invention relates to an annealing method for aluminum used for a cable and an aluminum alloy belt and foil. The annealing method comprises the following four steps: step one, heating the furnace temperature of a box-type annealing furnace to 190-250 DEG C, with the temperature rise gradient of 2-3 DEG C per hour, and the heat preservation time of 60-250 minutes; step two, heating the furnace temperature of the box-type annealing furnace to 380-435 DEG C, with the temperature rise gradient of 2-3 DEG C per hour, and the heat preservation time of 10-20 hours; step three, reducing the furnace temperature of the box-type annealing furnace to 340-370 DEG C, with the temperature fall gradient of 5-6 DEG C per hour, and the heat preservation time of 4-15 hours; and step four, reducing the furnace temperature of the box-type annealing furnace to 190-220 DEG C, with the temperature fall gradient of 5-6 DEG C per hour, and the heat preservation time of 1-4 hours; and adopting air cooling outside the furnace as a cooling mode. The annealing method can effectively prevent oil stain on material surface and improve the elongation, and is short in production cycle and low in production cost.

Description

technical field [0001] The invention relates to an annealing method for aluminum and aluminum alloy strips and foils for cables, in particular to a finished annealing method for producing aluminum and aluminum alloy strips and foils for cables by casting and rolling + cold rolling. Background technique [0002] Aluminum and aluminum alloy strips and foils for cables use the airtightness and shielding properties of aluminum foil. After one or both sides are coated with plastic film, the aluminum-plastic composite foil is composed of aluminum-plastic composite foil. It is used as a shield for cables and can prevent cables from Destructive impact, and play a corrosion-resistant, moisture-proof, waterproof, and protect the safety of the inner cable. Aluminum and aluminum alloy strips and foils for cables require no inclusions and holes on the surface, high comprehensive mechanical properties, and extremely strict requirements on the amount of oil on the surface and oil spots. A...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/04H01B1/02H01B5/02
Inventor 胡珂万宝伟陆佳彭丽
Owner JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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