1. Use the right Tungsten Wires
There are many kinds of tungsten wire materials, such as aerobic copper tungsten alloy, powder metallurgy tungsten wire. The correct selection of tungsten wire is crucial to its service life and effect. For example, the high melting point, oxidation resistance and high temperature resistance of the aerobic copper tungsten alloy tungsten wire are suitable for the production of electrodes and thermocouples that emphasize high temperature and corrosion resistance. The powder metallurgy tungsten wire is suitable for gas emission electrode and EDM cutting element under high pressure atmosphere because of its good density and strong corrosion resistance.
2. Apply the correct diameter of Tungsten Wires
The correct choice of tungsten wire diameter ensures stable performance and increased service life. In most cases, the choice of a finer tungsten wire diameter can reduce the arc voltage, reduce the operating temperature, and thus reduce the thermal stress. If the thicker tungsten wire is used, it is not only easy to waste energy, but also affect its service life and stability.
3. Keep it dry
Tungsten wire electrodes should always be kept dry during use. Prolonged exposure to moisture will cause the surface of the tungsten wire to oxidize, thereby reducing its electrical conductivity and service life. Therefore, it is necessary to store it in dry conditions for a period of time before use, avoid its use after moisture, and check and dry the electrode regularly during the working process.
4. Pay attention to avoid excessive burning
The use of tungsten wire strength is very high, will produce a very high operating temperature. If not paid attention to, it is easy to appear excessive burning and melting problems. Excessive burning will cause the tungsten wire to break and melt, affecting its service life and thrust. Therefore, the electrode depth, arc length and current of the tungsten wire should be controlled transparently to maintain a suitable working temperature. In high-power processing, attention should also be paid to controlling the working time of tungsten wire to avoid overheating and excessive burning.
5. Pay attention to the environment
Changes in the environment will affect its quality and service life. For example, when used in the air, oxidation reaction is easy to occur, affecting the conductive properties of tungsten wire and even leading to tungsten wire breakage. When used in a hot environment, it is also necessary to pay attention to excessive smoke in the air and accelerate the melting and burning of tungsten wire. Therefore, when using tungsten wire, it is necessary to pay attention to its heat resistance and corrosion resistance, and avoid use in too harsh environments.
