Copper Tube Target Pure 99.97 155OD*125ID*888 oxygen-free copper

Pure copper without oxygen and without any deoxidizer residue. But it actually contains very small amounts of oxygen and some impurities. According to the standard, the content of oxygen is not more than 0.003%, the total content of impurities is not more than 0.05%, and the purity of copper is more than 99.95%. Anaerobic copper products are mainly used in the electronics industry. Often made of oxygen-free copper plate, oxygen-free copper belt, oxygen-free copper wire and other copper materials. Strictly distinguish, anaerobic copper should be divided into ordinary anaerobic copper and high purity anaerobic copper. Ordinary copper without oxygen can be smelted in the power frequency induction furnace with iron core, while high purity copper without oxygen should be smelted in the vacuum induction furnace. Vacuum smelting should be the best choice for smelting high quality anaerobic copper.
Vacuum melting can greatly reduce not only oxygen content, but also hydrogen and some other impurity elements.
In vacuum medium frequency coreless induction furnace smelting, graphite crucible and high purity cathode copper after twice refining or remelting copper are used as raw materials. A flake graphite powder for deoxidation is also included in the furnace with the cathode copper. In fact, deoxidation is mainly through the carbon in the graphite crucible material. The carbon consumption can be calculated, for example, 1 kg of copper consumes 100 grams of carbon. Experience shows that the higher the oxygen content in copper liquid at the beginning, the faster the deoxidation reaction at the initial stage of smelting.
The oxygen content of the oxygen-free copper obtained by vacuum smelting can be less than 0.0005%, and the hydrogen content is less than 0.0001% ~ 0.0003%. In fact, only in a certain degree of vacuum smelting and casting of copper, it is possible to get completely free of oxygen and other gases castings, so the production of electronic tube copper vacuum furnace vacuum degree should be above 10-6

Advantages:
1, high conductivity
2. Good thermal conductivity
3, good weldability
4, excellent plasticity and ductility
5, excellent cold working performance