Copper Strip

Making embryos
According to the predetermined production target, different amounts of zinc blocks are added to the waste copper material to prepare copper raw materials of different specifications.

Laboratory test
In order to ensure the production of finished products that are both qualified and economically efficient, the accuracy of the test results is still important. The responsibility of the laboratory is to quickly and accurately analyze the test results based on the copper blocks submitted for inspectiontell the furnace master.

Cut off
The complete copper strip is towed by the suspension rope, placed on a special cutting table, and then cut off by a cutting wheel saw, and then the copper strip surface washing machine smoothes the uneven surface of the copper strip, which is beneficial to the surface of the copper strip processed later flatness and smoothness.

Hot rolling
The cut copper strip is heated at a high temperature of 1000 ℃, and then overheated and rolled into a copper strip with a thickness of about 2.3 cm.

Washing
Each copper block is passed through the preliminary rolling step. Due to the existence of surface impurities, in order to avoid affecting the quality of the finished product, it must go through the sealing furnace and then go through the washing process. The washing area is divided into two pools according to the acidity. High concentration is 6-8 degrees, low concentration is 3-5 degrees. Among them, the middle red patches on the surface of the copper strip can be washed away by the acid in the washing pool, while the dark red patches are removed by the fine iron brush during washing. The copper strip after this series of treatments obviously shines the inherent gloss of copper itself. Similarly, there are still red plaques and red plaques during the rolling process, so we need to repeat the washing step again. During the washing, the acidity in the pool should be checked regularly, and the acid should be added in time to avoid the acid content being too low, resulting in insufficient washing.

Rolling the plate
The rolling area is divided into 180 rolling and 110 intermediate rolling according to the wheel roll. According to the size of various wheel rollers, the copper strip hot rolled down and forged in the sealing furnace is processed from rough to fine through the above two steps.

Differences in material composition
Copper strip
Copper strip, also known as electrolytic copper strip, is mainly composed of pure copper, with a purity generally above 99.9%. The remarkable feature of copper strip is its excellent electrical and thermal conductivity, thanks to the physical properties of pure copper. The chemical properties of pure copper are stable, except gradually oxidizing into green copper rust in moist environments, it remains relatively stable under other conditions.

Brass strip
Brass strip is a copper-zinc alloy, mainly composed of copper and zinc. The properties of brass vary depending on the zinc content. Generally, the copper content in brass is between 55% and 70%, and the zinc content is between 45% and 30%. Compared to copper strip, brass strip has better mechanical processing properties and wear resistance, but lags slightly behind in terms of electrical and thermal conductivity. Jintian stands out as one of the professional brass strip suppliers, providing high-quality products for diverse needs.

Comparison of physical properties
Electrical and thermal conductivity
Due to its high purity copper quality, copper strip has excellent electrical and thermal conductivity, making it very popular in the fields of power and electronics. In contrast, although brass strip falls short in electrical and thermal conductivity, it still meets certain industrial demands.

Mechanical properties
Due to the addition of zinc, brass strip not only has higher hardness but also good corrosion resistance and processing properties. This makes brass strip excel in applications that require certain strength and plasticity. Although copper strip has relatively low hardness, its plasticity is excellent, making it suitable for cold and hot working.

Corrosion resistance
Both copper strip and brass strip have certain corrosion resistance, but due to different compositions, their performances differ. Copper strip performs stably in most environments, while brass strip, due to the presence of zinc, exhibits better corrosion resistance in specific environments.

Differences in application areas
Applications of copper strip
Copper strip is mainly used in the electrical and electronics industries, such as making cables, electromagnetic wires, motor, and transformer conducting components. Additionally, it is widely used in the decorative field, such as the production of art pieces and architectural decorations. Due to its excellent conductivity, copper strip is a key material for manufacturing circuit boards and other electronic devices. Moreover, copper strip is commonly used in the production of heat exchangers and radiators, utilizing its outstanding heat conductivity to improve equipment cooling efficiency.

Applications of brass strip
Due to its excellent mechanical performance and processing properties, brass strip is widely used in mechanical manufacturing, shipbuilding, automotive, construction, and decoration industries. In the mechanical manufacturing field, brass strip is often used to produce various precision components such as gears, bearings, and valves. In the construction field, due to its good corrosion resistance and aesthetic appearance, brass strip is frequently used for making door and window fittings, decorative strips, and railings. Additionally, brass strip also plays a role in the music field, such as in the production of various brass instruments, providing unique tones.