Copper strip is a very common metal component, often seen in electrical components, lamp heads, battery caps, buttons, seals, connectors, etc. Its main function is to conduct electricity, heat, and corrosion-resistant equipment. The production process of copper strips is very complex, requiring the extraction of pure copper from underground ores, followed by high-temperature melting to turn the copper into a liquid state. The liquid copper is then cooled and shaped into the desired strip structure through molds. After a series of refining and processing, the copper strip can finally be completed.
Copper strip
The copper strip has a wide range of applications in the construction industry, where it is used to make various decorations, doors and windows. In the electronics industry, copper strips are used as wires and cables. In the automotive industry, copper strips are used to manufacture radiators and other important mechanical components. Due to their excellent oxidation resistance and corrosion resistance, copper strips are also widely used in fields such as food packaging and medical devices.
Copper strips are used in the construction industry to make doors and windows
In addition to practical value, copper strips also have high artistic value. Many ancient civilizations used copper strips to decorate their buildings and artworks, and the ancient Egyptians used copper strips to decorate their tombs and temples. The ancient Greeks used copper ribbons to create sculptures and murals, which were not only material cultural heritage but also symbols of human creativity.
The solution to common problems with copper strips
Solution to discoloration of copper strip：
- Control the concentration of acid solution during acid washing. In the case of washing away the oxide layer on the surface of the annealed copper strip, a high acid concentration is meaningless. On the contrary, if the concentration is too high, the residual acid attached to the surface of the copper strip is difficult to wash off and accelerates the pollution of the cleaning water, resulting in a high concentration of residual acid in the cleaning water and making the cleaned copper strip more prone to discoloration. Therefore, when determining the concentration of the pickling solution, the principle should be followed: while the oxide layer on the surface of the copper strip can be cleaned off, the concentration should be minimized as much as possible.
- Control the conductivity of pure water. Control the conductivity of pure water that is, control the content of harmful substances such as chloride ions in pure water. It is generally safer to control the conductivity below 50 μ S/cm.
- Control the conductivity of hot cleaning water and passivating agents. The increase in conductivity of hot cleaning water and passivating agents mainly comes from the residual acid brought in by the running copper strip. Therefore, while ensuring the quality of pure water used for cleaning, controlling the conductivity is also controlling the amount of residual acid. According to multiple experiments, it is safe to control the conductivity of hot cleaning water and passivating agent below 200 μ S/cm.
(4) Ensure that the copper strip is dry. Partial closure is carried out at the outlet of the air cushion furnace winding, and dehumidifiers and air conditioners are used in the local closure device to control the humidity and temperature of the copper strip winding within a certain range.
(5) Use passivating agents to passivate. Nowadays, most copper processing plants use benzotriazole, also known as BTA (molecular formula: C6H5N3), as a passivator. Practice has proven that it is a convenient, economical, and practical passivating agent. When the copper strip passes through the BTA solution, the surface oxide film reacts with BTA to form a dense complex, which protects the copper substrate.
Solution to Shear Indentation of Copper Strip
To prevent the occurrence of blade indentation, it is mainly necessary to choose a reasonable outer diameter difference between the circular knife and the rubber peeling ring based on the thickness and softness of the strip. The hardness of the rubber stripping ring meets the requirements for the use of the cut strip; When the width of the cut strip is small, the thickness of the circular knife should be reasonably selected to increase the width of the rubber peeling ring.
Supplier
CopperGroup is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high-quality copper and relative materials. The company export to many countries, such as USA, Canada,Europe,UAE,South Africa, etc. As a leading nanotechnology development manufacturer, Copperchannel dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are looking for XXX, please send an email to: nanotrun@yahoo.com
