Oxinal Aluminum Coils

OXINAL ALUMINUM COILS have many benefits*

• Light weight in performance ratio vs. copper coils
• Extremely high temperature applications
• Inert masses can be accelerated faster and with less energy
• Reducing applied kinetic energy
• All manufacturing requirements are performed in-house by Oxinal
• Performance data is measured against copper coils

OXINAL, A PROCESS FOR SUPERIOR RESULTS

Generally a challenge exists to produce an anodized aluminum strip or coil when the edges have burrs after slitting. This can lead to voltage flashovers and short circuiting.

We have invented an edge treatment which will remove physically burrs and will eliminate any possible electrical shorting. The edges will have a slight radius and are in proportions with the thickness of the aluminum strip.

WELDING METHODS FOR CONDUCTOR TERMINATION

To terminate for conductivity a coil with a different metal alloy as required in most instances, there are two methods available. The least expensive method is cold pressure welding whereas an other metal i.e. copper is used but not limited to such metal. It has been proven of excellent performance; no mechanical weakening at the weld points. The conductivity from one metal to the other remains virtually the same.

The second method is Ultrasonic Welding. Here the advantages are when thin film or strip is used for coil construction. Ultrasonic welding will eliminate any mechanical distortion due to the lower contact pressure. This method is very desirable on critical electronic applications.

COIL WINDING

The optimal beneficial winding of aluminum strip for high performance transformers and inductors is achieved with OXINAL's anodized aluminum strip. Our strip material will produce very significant advantages over copper:

• Higher Space Factor
• Superior Heat Dissipation during performance
• Thermal Load will reduce performance sensitivity
• Cost of coil is lower vs. copper
• Lifetime of our coils beyond many decades

MATERIAL

All aluminum alloys used in our production for coils and strips are either 1350-0 or 1145-0 when high conductivity is at issue.

Other alloys are available upon request.

ADDITIONAL COATINGS AVAILABLE

In the event that a B-Stage coating is required to form a free standing coil without a core, OXINAL can provide as well for these applications a top coating which will reduce the weight of the finished coil further.

Free standing coils are of superior design where the inertia of the coil, for example voice coils, is an energy related issue and will produce a high fidelity acoustic reproduction.

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