High purity copper refers to the purity of copper reaches 99.999% or higher 99.9999%, and its various physical properties are greatly improved than those with low purity. Copper has good electrical and thermal conductivity, and it is malleable and malleable. Copper is commonly used to make wires and tubes, but can also be pressed, drawn, and cast into various products. In recent years, high purity copper has been widely used and highly valued.
If the high purity copper will be applied to the integrated circuit of audio equipment, the production of audio cables, will greatly improve the fidelity of the sound; The gold bonding wires used to make semiconductors can also be replaced with copper, which saves costs. High purity copper has low softening temperature, good ductility, and can be easily drawn into thin wire. The use of high purity copper can improve the quality of electronic products and reduce the manufacturing cost.
The high-purity copper purification technology has been started from a long time ago. In 1941, Smart Jr and others carried out research on electrolytic refining, highly purified the electrolyte, and carried out multiple electrolysis combined with copper sulfate solution and copper nitrate solution. The product. From the mid-1950s, the method of purifying metal by zone melting appeared, and it was immediately used to purify copper. In this way, the high-purification technology of copper was further developed. In recent years, a method of purifying copper based on ion exchange has appeared, and good results have been achieved. The development of modern technology has continuously increased the requirements for material properties. High purity copper has many excellent properties, which can meet the requirements of many modern cutting-edge technologies. Technical requirements, and have been applied in many aspects, and achieved good results.
Post time: Jul-28-2022