The problem of oxidation of CCA PV RIBBON is mainly concentrated on the surfaces of the copper and aluminum layers, as oxidation leads to a loss of electrical conductivity, poor surfaces and other quality problems. In order to prevent oxidation of CCA PV RIBBON, some effective protective measures are required during production and storage. The following are some common methods to prevent oxidation of CCA PV RIBBON:
- Surface treatment
Clean aluminum core surface:
During the production of CCA PV RIBBON, the oxidized layer on the surface of the aluminum core must be completely removed. Commonly used methods are chemical polishing, mechanical polishing, or acid washing (e.g., sulfuric or hydrofluoric acid cleaning). This effectively removes the aluminum oxide layer and ensures that the copper layer can form a good metallurgical bond with the aluminum core.
If there is an oxide film on the surface of the aluminum core, the copper cladding layer can’t have a good bond with the aluminum, and it is easy to be peeled off or partially detached during subsequent use.
Surface treatment of the copper layer:
The copper layer of CCA PV RIBBON should be protected from exposure to air as much as possible during production to reduce the possibility of oxidation. If CCA PV RIBBON is exposed to humid air for a long period of time, the copper layer is susceptible to oxidation, resulting in discoloration of the surface, which in turn affects the electrical conductivity.
Oxidation of the copper layer can be prevented by applying a protective film (e.g. transparent polymer coating) or by using atmosphere protection (e.g. nitrogen or inert gas protection) for production.
- Control of the production environment
Low oxygen, low humidity environment:
Ensure a low humidity environment during production to minimize the effect of moisture in the air on the oxidation of CCA PV RIBBON. The surface of CCA PV RIBBON can be protected by the use of dry gases such as nitrogen.
Temperature and humidity control equipment can help maintain proper environmental conditions during manufacturing and storage, preventing copper and aluminum surfaces from being exposed to moisture and oxygen in the air.
Control oxygen exposure:
Minimize exposure to air during the manufacturing and processing of CCA PV RIBBON. For example, inert gases such as nitrogen can be used to inflate protection during drawing or rolling to minimize the exposure of the copper layer to oxygen.
- Packaging and Storage
Antioxidant packaging:
CCA PV RIBBON should be packaged in moisture- and oxidation-resistant packaging materials, such as wrapped in aluminum foil, plastic film, or other impermeable packaging materials. Especially for CCA PV RIBBON stored or transported for a long period of time, make sure that the package is complete and tight to avoid moisture and oxygen from entering the package.
For transportation in high humidity environments, desiccants can be used or nitrogen can be injected into the package to further prevent oxidation.
Storage conditions:
For storage, CCA PV RIBBON should be placed in a dry, ventilated place with stable temperature, avoiding direct sunlight or humid environment.
Regularly check the humidity and temperature of the storage environment to ensure that they are within the appropriate range.
- Use anti-oxidation coating
Copper layer protective coating:
To prevent oxidation of the copper layer, an antioxidant coating, such as an oil-based antioxidant, polymer coating, etc., can be applied to the surface of CCA PV RIBBON. These coatings effectively insulate the copper layer from moisture and oxygen in the air and prevent oxidation of the copper layer.
The coating material should have good adhesion, not affect the electrical conductivity of the copper layer, and be able to withstand friction and pressure during use.
Aluminum core anti-oxidation:
Aluminum cores can also be protected against oxidation by measures such as coating a thin film or surface treatment. Although the surface of aluminum is susceptible to oxidation, the effect of oxidation on performance can be reduced by reasonable surface treatment and protective measures.
- Quick measures against oxidation in the short term
Application of antioxidants:
Antioxidants can be applied to the surface of the copper layer of CCA PV RIBBON during the production process or before storage. The antioxidant forms a protective film on the copper surface and prevents direct contact of oxygen with the copper layer.
Protection with inert gas:
Protecting CCA PV RIBBON with inert gases (e.g. nitrogen, argon, etc.) during storage and transportation significantly reduces the possibility of oxidation.By filling the interior of the package with inert gas, oxygen in the air is isolated, keeping the surface of CCA PV RIBBON clean.
- Fine process control
Fusing temperature and pressure control:
During the production of CCA PV RIBBON, make sure that the temperature and pressure control of copper and aluminum cladding are in the right range. Excessive temperatures may lead to excessive oxidation of the copper and aluminum materials, resulting in a loss of quality of the metal.Optimization of temperature and pressure can effectively avoid oxidation and improve cladding quality.
Cooling control:
During the rolling or drawing process of CCA PV RIBBON, ensure that the cooling process is smooth and uniform. Excessive temperature differences during cooling can lead to surface cracks or bubbles, which in turn affect the oxidation resistance.
Summarizing
The oxidation resistance of CCA PV RIBBON is a matter of raw material treatment, production process, environmental control, packaging and storage. By adopting appropriate surface treatment, using anti-oxidation coating, controlling humidity and temperature, packaging sealing and using inert gas protection, the oxidation of CCA PV RIBBON can be effectively reduced to ensure its long-term stable electrical performance and good surface quality.
