

Add to Cart
Copper Tube Target Pure 99.97 155OD*125ID*888 oxygen-free copper
Product | Copper Tube Target |
Size | φ155*φ125*888 |
Grade | Oxygen-free copper |
Packaging | Vacuum package in wooden case |
Port of delivery | Xi'an port, Beijing port, Shanghai port, Guangzhou port, Shenzhen port |
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