are used in heat exchangers. Thermometer protection tubes for the petrochemical industry. Corrosion-resistant, high-temperature resistant industries aerospace, electronics industry.Niobium tubes are widely used in chemical, electronics, aviation and aerospace fields due to their high melting point, corrosion resistance, and good cold working performance. 

1.Making corrosion-resistant parts that are resistant to nitric acid, hydrochloric acid, or sulfuric acid corrosion can only be blamed. The addition of zirconium to niobium can significantly improve the oxidation resistance and strength of the material, and niobium and niobium-zirconium alloy wires are widely used in the manufacture of high-pressure sodium lamps and anode leads of electrolytic. 

2. and niobium products are widely wrapped in special processes, such as silicon, and most niobium alloys are made by smelting with electron beams, plasma and vacuum arc with appropriate added elements. For large ingots, it is required to produce suitable ingots with the right composition by two meltings. Today, most common alloy additives are titanium, zinc, tungsten, tantalum and hafnium, which can be stably entered during the melting process.Another promising method for the production of niobium alloys is electrowinning from molten salts, such as deposition from the Kel-KF-K2ZrF6-K2NbF7 series. Niobium-based alloys can also be prepared by powder metallurgy. Several methods can be used to prepare niobium alloy powders, including gas-atomization, quenching, mechanical fusion, high-temperature diffusion, or hydride dehydrogenation. However, oxidation, introduction of impurities, and the cost of oxidation are difficult to avoid when using these methods.

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