Researchers found that the atmosphere around tungsten alloy billets plays a key and decisive role in sintering quality during sintering. In particular, when tungsten alloys are sintered in large quantities, as tungsten alloys contain alloy additives, a large number of impurities are discharged during sintering, the greater the amount of furnace loading, the greater the impurity of the discharge and the worsening of the sintering atmosphere. The protective gas can take away a large amount of impurities produced in the sintering process and ensure the sintering quality. Therefore, on the one hand, the need for hydrogen excess to meet the requirements of sintering, on the one hand, need to reduce the amount of hydrogen to reduce the cost, which is a dilemma.

At present, a method for manufacturing a yttrium tungsten electrode is mainly to obtain a metal blank by a powder metallurgy method. There are three kinds of traditional mixing processes.

When the tungsten tungsten electrode is welded, the arc beam is slender and has a high degree of compression, especially in the medium and high current penetration. It is mainly used in the military and aerospace industries. Tungsten yttrium electrode has the characteristics of long life and good arc starting performance, and has broad application prospects.

Due to its high density, high melting point, corrosion resistance, and weldability, tungsten-rhenium alloy materials make it a plasma-facing material in nuclear fusion reactors, and it is a very important material for plasma materials in nuclear fusion reactors. It is related to the stability of the plasma in the reactor, the first wall structural materials and components from plasma bombardment and other issues.

Tungsten copper alloy is a pseudo alloy consisting of insoluble tungsten and copper. The alloy has the advantages of high melting point, corrosion resistance, low expansion coefficient, wear resistance and so on. At the same time, it has the advantages of high conductivity and thermal conductivity, good plasticity and easy processing of copper, but in many cases, it is required to tolerate high temperature on one side of the material. The other side is connected to the copper or copper alloy with good thermal conductivity. Because the physical properties of tungsten and copper are quite different, the single component tungsten copper alloy is difficult to relieve the thermal stress inside and on the interface, and the functionally graded material can solve this problem better.

Alkali process is widely used in tungsten smelting in China. In the process of alkali decomposition of tungsten concentrates, a small amount of CaF₂ and NaOH react with sodium fluoride into sodium wolframidotungstic acid solution. Due to the lack of low cost and effective defluorination technology, the cost of sodium fluoride purification treatment in China's tungsten smelting enterprises is higher.