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

Copper plating process of aluminum wire material

A technology of wire rod and copper plating, applied in the direction of metal material coating process, coating, solid-state diffusion coating, etc., can solve the problems of complex process, high cost, expensive price, etc., and achieve simple production process, low production cost and low price cheap effect

Inactive Publication Date: 2009-04-29
JIANGSU JIACHENG TECH
View PDF0 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, copper wire has good electrical conductivity, but the price is more expensive; while aluminum wire is cheaper, but its electrical conductivity is not as good as copper wire; copper-clad aluminum wire is between the two, and its price and electrical conductivity are relatively moderate.
Traditional copper-clad aluminum wires are wrapped by a cladding machine. This process is more complicated and costly, and the cladding machine can only coat aluminum wires with a thicker diameter (8-12mm), but not Aluminum wire with a thinner diameter (1-2mm), and the tensile strength of the finished wire drawn by the copper plating process is significantly higher than that obtained by the cladding process

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

[0015] The copper plating process of aluminum wire rod of the present invention, its steps are:

[0016] 1) Degreasing: put the aluminum wire rod with a diameter of 1.5 mm into the degreasing pool containing 600 liters of phosphate, 12 kg of carbonate and an appropriate amount of degreasing and film removing additives plus water at a temperature of 30 ° C. , remove the oil on the surface of the aluminum wire, then take the aluminum wire out of the degreasing tank, and rinse it with water at a temperature above 20°C;

[0017] 2) Pickling: Put the degreased aluminum wire into a pickling tank containing 250 liters of solution prepared by adding 50 liters of nitric acid, 12.5 liters of hydrofluoric acid and an appropriate amount of buffer with water. flushing;

[0018] 3) One-time galvanizing: Put the pickled aluminum wire into a pool containing 800 liters of solution prepared by adding 80kg of sodium hydroxide, 16kg of zinc oxide and an appropriate amount of additives to add wat...

Embodiment 2

[0025] The copper plating process of aluminum wire rod of the present invention, its steps are:

[0026] 1) Degreasing: Put the aluminum wire with a diameter of 3 mm into the degreasing pool containing 600 liters of solution prepared by adding 30 kg of phosphate, 48 kg of carbonate, and an appropriate amount of degreasing and film removal additive with water, and the temperature is 80 ° C. , remove the oil on the surface of the aluminum wire, then take the aluminum wire out of the degreasing tank, and rinse it with water at a temperature above 40 °C;

[0027] 2) Pickling: Put the degreased aluminum wire into a pickling tank containing 250 liters of solution prepared by adding 125 liters of nitric acid, 37.5 liters of hydrofluoric acid and an appropriate amount of buffer with water. flushing;

[0028] 3) One-time galvanizing: Put the pickled aluminum wire into a pool containing 800 liters of solution prepared by adding 400kg of sodium hydroxide, 96kg of zinc oxide and an appro...

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
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a copper plating process for aluminum wires, which is low in cost and capable of producing copper-coated aluminum wires in various specifications. The process comprises the following steps of subjecting the aluminum wires to alkali washing, washing, acid washing, washing, primary zinc dipping, washing, zinc removal, washing, secondary zinc dipping, washing, nickel plating, washing, copper plating, hot-water washing and drying in turn. The copper plating process has the advantages that the process can produce the copper-coated aluminum wires in various specifications, is simple in production process, adopts no cyanide, is simple in treatment for wastewater and waste steam, and is low in production cost, thereby ensuring the lower price of the copper-coated aluminum wires.

Description

technical field [0001] The invention relates to a copper plating process for aluminum wires in the electroplating industry. Background technique [0002] As we all know, copper wire has good electrical conductivity, but its price is more expensive; while aluminum wire is cheaper, but its electrical conductivity is not as good as copper wire; copper-clad aluminum wire is in between, and its price and electrical conductivity are relatively moderate. Traditional copper-clad aluminum wires are wrapped by a cladding machine. This process is more complicated and costly, and the cladding machine can only coat aluminum wires with a thicker diameter (8-12mm), but not Aluminum wire with a thinner diameter (1-2mm), and the tensile strength of the finished wire drawn by the copper plating process is significantly higher than that obtained by the cladding process. Contents of the invention [0003] A technical problem to be solved by the present invention is to provide a low-cost copp...

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): C23F17/00C23G1/24C23G1/04C23G1/12C23C10/20C25D3/12C25D3/38
Inventor 钱国平
Owner JIANGSU JIACHENG TECH
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com