With the rapid development of the electronics and electrical industry, the miniaturization and high performance of electronic components, there is an increasing demand for high-performance copper alloy special-shaped copper strips. Due to the conductivity and heat dissipation of thick plates and the workability of thin plates, special-shaped copper strips have been used in electronic materials. At the same time, the lead frames and high-current terminals of high-power ICs will also be widely used. It is expected that there will be a large demand for special-shaped copper strips for high-conductivity projects in the future. With the continuous development of high-tech technology and adapting to the multiple needs of the national economy for copper materials, special processing technologies have been developed, including high-precision special-shaped copper strips, internal oxide particle strengthening, multiple metals, and laser surface strengthening , Semi-solid molding.
It can be said that the development of special-shaped copper materials has provided a lot of convenience for our lives, which also proves that the development prospects of special-shaped copper materials are immeasurable. Therefore, we are more optimistic about the market prospects of special-shaped copper strips.
The main application characteristics of special-shaped copper tape:
Use less material to obtain higher contact pressure.
Heat dissipation in high-current applications; the thicker part dissipates heat slowly, and the temperature rises slowly, which prolongs the life of electronic components.
Use the rigidity of thick-walled parts to increase the contact pressure and use the machinability of thin plates.
Processing technology type:
The types of special-shaped copper strips that can be provided: milling, extruding, and drawing are completed by molds and matching blades.
The first type: milling
Processed alloy: CuSn6 (C5191), CuSn8 (C5210), C7025, C18070, CuSn0.15, CuZn30..
Main applications: various automotive connectors, terminals, sensors, etc.
Cutting thickness: 0.02-1.0mm
Cutting thickness: 0.2mm, thickness tolerance: ±0.005mm, width tolerance: ±0.1mm
Cutting thickness: 1.0mm, thickness tolerance: ±0.03mm, width tolerance: ±0.15mm
The second type: forging and rolling method
Forging-rolling method is to use continuous stepping high-speed forging processing method to first forge the flat belt into the shape and size close to the finished product, then perform on-line annealing and cleaning, and finally shape and roll the finished product by forming rolls.
Process flow: casting copper ingot → forging → rolling → annealing → cleaning → finishing rolling → shaping
Processing alloy: C1020 oxygen-free copper, silver copper series, red copper series, C14415 alloy copper, low iron alloy copper series, etc.
Main applications: power transistors, semiconductor LEDs, car inverters, car inverter modules, etc.
For more detailed technical issues, people from all walks of life are welcome to come and discuss.
Jiangsu Fuwei Technology Co., Ltd. was established in 2004, focusing on the research, development, production and sales of two series of high-end copper based new material products, including high-end electronic copper foil and high-precision copper belt, which are widely used in 5G, new energy, electronics, computer, communication, electric power, automobile, railway, aerospace and other fields.
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