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Completed FORUM RECAP | NINGBO, CHINA

Raytron Showcases Copper-Clad Aluminum Wire, Fully Clad Strip and Precision Foil at CCD2026

A copper surface and an aluminum core create engineering value only after resistance, temperature rise, joining, mechanics, environment and lot consistency are validated together.

Date

August 24-26, 2026 (registration on August 24; main program on August 25-26)

Venue

Sheraton Ningbo Hotel, Ningbo, Zhejiang, China

Booth

Company Exhibition Area

Raytron exhibition area at the 2026 Copper Composite Materials Developer Forum
2026 Copper Composite Materials Developer Forum | August 24-26, 2026 | Ningbo, Zhejiang

The 2026 Copper Composite Materials Developer Forum was held in Ningbo, Zhejiang, from August 24 to 26, with registration on August 24 and the main conference and exhibition program on August 25 and 26. Raytron New Energy (Zhejiang) Co., Ltd. presented three product platforms: copper-clad aluminum round and flat wire, fully clad CCA strip and embossed strip, and CCA precision foil.

The forum brought together research institutes, material manufacturers, equipment suppliers and application companies. For Raytron, the most valuable conversation was not a one-line answer to "Can CCA replace copper?" It was a structured review of dimensions, current, voltage drop, temperature rise, forming, joining, environment and lot consistency to determine whether the material fits, how a sample should be designed and how validation should proceed.

CCA Round and Flat Wire

Raytron's CCA wire platform includes round and flat geometries. Copper ratio, core material, conductivity, temper, dimensions, tolerances, tensile strength and elongation can be evaluated for the target project. Potential applications include wire and cable, communications, automotive wiring, electronic interconnections, coils and other conductive structures requiring lower mass or copper consumption.

Manufacturing and inspection priorities include continuous copper coverage, concentricity or cladding symmetry, bond-interface stability, surface quality, dimensional consistency and compatibility with drawing, rolling, tinning, insulation, welding and crimping.

Fully Clad CCA Strip and Embossed Strip

Fully clad CCA strip is produced through multi-pass precision rolling of clad feedstock. The aluminum core remains continuously enclosed by copper, and the material can be supplied in coil form for slitting, stamping, laminating or automated downstream processing. Project specifications may define total thickness, width, copper ratio, temper, surface, edge condition and coil weight.

Embossed strip introduces a controlled surface structure for contact, bonding, lamination, thermal-management or other functional requirements. Flatness, transverse gauge variation, camber, burr, surface cleanliness and coil-to-coil consistency remain critical production controls.

CCA Precision Foil

CCA precision foil is developed for thin-gauge, high width-to-thickness-ratio and high-consistency requirements. Potential applications include electronic shielding, flexible conductive components, lightweight clad foil, precision die-cut or stamped parts and downstream processes requiring a functional copper surface at lower weight.

As gauge decreases, transverse thickness variation, flatness, edge burr, surface cleanliness, interface condition and winding defects become more significant. Sample evaluation should therefore include cross-width data, edge and surface inspection, and post-forming or post-joining condition rather than only average thickness and conductivity.

Not an Unconditional One-for-One Copper Replacement

At the same geometry, CCA and copper have different resistance, density, thermal behavior and mechanical response. Under an equal-resistance comparison, cross-section may need to increase. Under an equal-weight comparison, a different dimensional and economic result appears. The correct design depends on whether space, mass, copper consumption, conductivity, strength or processing is the dominant constraint.

Raytron therefore defines the comparison basis first and then builds the sample and test plan. A material architecture proceeds to pilot and mass production only after electrical, thermal, mechanical, joining, environmental and manufacturing-consistency requirements are met.

From Forum Discussion to Sample Validation

  • Confirm copper-ratio definition, aluminum core, product form, dimensions and temper;
  • Calculate density, conductivity, resistivity, mass per unit length and comparison with the current material;
  • Confirm welding, crimping, stamping, slitting, tinning, insulation or other downstream processes;
  • Define incoming, in-process, finished-product and reliability tests;
  • Set sample, pilot, audit, change-control and production-release gates;
  • Use approved drawings, technical agreements and batch inspection records as the delivery basis.

Raytron Manufacturing and Development Foundation

Founded in 2012, Raytron operates 13 precision rolling lines with annual capacity of approximately 15,000 metric tons under an ISO 9001 quality management system. The company has accumulated 28 patents and related technical experience in precision flat wire, PV ribbon and clad materials.

Clad-feedstock preparation, drawing, precision rolling, annealing, slitting, inspection and batch traceability support the custom development, sampling and production supply of round wire, flat wire, strip and precision foil. Project capability remains subject to the target specification and formal engineering review.

Booth and Exhibits

CCA wire, strip and precision foil samples presented by Raytron at CCD2026
CCA wire, strip and precision foil platforms on display
Clad strip cross-section and engineering data presented by Raytron at CCD2026
Cross-section samples and engineering parameters used on site

Frequently Asked Questions

What does "fully clad" mean?
It means that the copper layer continuously surrounds the aluminum core in the finished cross-section rather than leaving exposed aluminum edges. Uniformity and interface acceptance should follow agreed cross-section and test methods.
Should copper ratio be specified by weight or volume?
Both are used, but they produce different numerical values. The project must state the basis and apply density-based conversion consistently across quotation, drawing and inspection report.
Can precision foil be stamped or welded directly?
The final gauge, copper layer, temper, tooling, joining method and part geometry must be validated. Acceptance of the raw material does not automatically qualify the downstream process.
How does a joint development project begin?
Submit product form, dimensions, copper ratio or conductivity, temper, joining method, environmental requirement, sample quantity and annual demand. Raytron can then review manufacturability and the validation path.

Submit a Specification to Start the Review

Share your basics and current specification highlights. Raytron engineering will run an initial application, electrical, thermal, mechanical, processing, joining and environmental review.

Suggested content: product form, dimensions/tolerances, current material, target resistance or conductivity, temper, joining method, environment, annual demand and current pain point.

Final performance and delivery are subject to mutually confirmed drawings, technical agreements, test methods and lot inspection data.

Contact Raytron Now - Let Every Meter of Material Create Higher Value for You

Raytron focuses on copper-aluminum composite PV ribbon and busbar ribbon, plus CCA, CCS and NCC clad conductors with custom specifications, sample support and production quotations.

13
Precision Rolling Lines

Rolling, slitting and dimensional control

15,000
Tons Annual Capacity

Supports samples, pilot lots and ongoing supply

28
Patents

Clad conductor, rolling and related processes

200 kg
MOQ

Suitable for engineering samples and trial orders

24 business hrs
Initial RFQ Acknowledgement

Initial acknowledgement within 24 business hours.

ISO 9001
Certified

Quality system and lot traceability support

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