Molybdenum rods are used in exercise, steel, glass, porcelain, refractory material, crystal, electronic components and other aspects, especially in view of the high performance fine porcelain, high-grade others force crystal, fine structure of metal porcelain, glass fiber, optical fiber and production of high-grade alloy steel.

The use of the molybdenum bar must be equipped with a voltage regulator and voltage, current meter and temperature active operation meter

In the selection process, the resistance increases gradually because of the combination of rods, in order to adhere to the normal temperature, the voltage should be mobilized.
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When the new furnace has been power transmission, in order to avoid the break of bars, the voltage should be gradually deepened. In general, it is appropriate that the current voltage is half of the additional voltage, and then gradually increase the normal voltage. As a new electric furnace or unused furnace for a long time, before using them, they should be baked, when baking them, the old bars should be used as far as possible.

For example, you may find that the tungsten rod cracking or the heat of bar is not  uniform, some parts are white or dark orange, which shows that the rod is aging and not consistent, and the difference of resistance is too large, if some old bars or new single rods are changed, because the resistance of new bars and used bars is inappropriate, which will be result in disturbing load balance and the unequal furnace temperature. Because the big difference of resistance, so the difference of rod temperature is also large, it will seriously affect the choice of furnace.