Raytron Technical Review RESEARCH ARTICLE WP-09-01

Sustainable Development Value of Bimetallic Conductors

RAYTRON Technical Team¹

¹RAYTRON Group, China

Published: March 2026 Version: 1.0

DOI: 10.1000/raytron.WP-09-01

Frequently Asked Questions

How does CCA contribute to sustainable development?

CCA contributes through: copper resource savings (40-83%), reduced carbon footprint with green materials, lower transportation emissions due to lighter weight, and recyclability supporting circular economy. These benefits align with UN SDGs 7, 9, 12, and 13.

What is the recycling value of CCA products?

CCA products have good recycling value due to their metal content. For 1 ton of CCA waste, material value is approximately $2,900 (copper $1,200 + aluminum $1,700), with net recycling value of $2,600 after separation costs, making recycling economically viable.

How to maximize sustainability benefits of CCA?

Maximize benefits by: selecting appropriate conductivity grade for application, sourcing green aluminum from renewable energy smelters, using recycled materials when possible, optimizing product design for longevity, and establishing end-of-life recycling programs.

Gaolei Xu

Senior Materials Scientist

Credentials & Honors

• CTO, Raytron Group
• Zhejiang Provincial High-level Talent Special Support Program - Young Talent
• Shaoxing "Technology Vice President"
• Shaoxing Science and Technology Commissioner
• Member of National Technical Committee 243 on Heavy Metals (SAC/TC 243/SC2)

National Standards (Lead Author) View Official

GB/T 27671-2011 - Copper Profiles for Electrical Conductors
YS/T 1043-2015 - Silver-bearing Oxygen-free Copper Strip for Motor Commutators
YS/T 974-2014 - Copper and Copper Alloy Strip for Composite Contact Materials
YS/T 1082-2015 - Copper Strip for Lamp Lead Stents

Patents (Inventor) Search Patents

CN104959396A - Production Process of Copper Strip for Composite Contact Materials
CN106077125A - Production Process of Copper Profile for Magnetic Pole Coils
CN201410710206 - Conductive Material for High-speed Railway Traction Motors and Production Method
CN201310719717 - Method for Controlling Strip Shape of Copper Strip Blank by Continuous Extrusion
CN201310720126 - Device for Controlling Strip Shape of Copper Strip Blank by Continuous Extrusion
CN201310376884 - Five-in-one Copper Strip Edge Treatment Equipment for Transformers
CN201420184755 - Continuous Extrusion Die Flow Promotion Device
CN201320761640 - Continuous Extrusion Waste Cleaning Device

Areas of Expertise

Copper-Clad Aluminum (CCA) Technology Copper-Clad Steel (CCS) Manufacturing Bimetallic Composite Materials PV Ribbon for Solar Cells Battery Tab Materials for EV Applications Continuous Extrusion Technology

Selected Publications

• Research and Application of Rolling Method for Manufacturing Metal Laminated Composites, Aluminum Processing Journal, 2008
• Annealing Process Research of Copper-Aluminum Composite Strip
• Research on Preparation Process of Copper/Aluminum Composite Strip for Cables
• Interface Microstructure Evolution of Rolled Copper/Aluminum Composite Strip During Annealing

Mr. Xu Gaolei is a distinguished expert in non-ferrous metal processing with over 15 years of experience. He is recognized as a Young Talent under the Zhejiang Provincial High-level Talent Special Support Program. He leads R&D initiatives in bimetallic composite technologies and has contributed significantly to the standardization of copper and bimetallic materials in China.

Click standard/patent codes to view official documents