Development and application of titanium welded tube in China
Because of its excellent corrosion resistance and high specific strength, titanium has been processed into various forms and forms of products and applied in various fields. Titanium welded tube is a relatively unique product form in the titanium material family. It is welded by rolling titanium and titanium alloy coil strip or wide plate into tube shape.
Development of titanium welded tube industry in China
Due to the constraints of raw materials and processing technology, the production technology of titanium welded tube has been in the hands of developed countries such as Japan and the United States for many years. The development of titanium welded tube in China started late, and the early development is relatively slow.
In the early stage of the development of titanium welded tube, although China brought in a complete automatic production line of small-diameter titanium welded tube from abroad, the production of domestic titanium welded tube was restrained because the raw material titanium coil was completely imported and the price was relatively expensive; In addition, due to multiple difficulties such as technology introduction and raw material procurement, domestic titanium welded tube has not really had the capacity of mass production.
In the past decade, due to the major breakthrough in the production technology of titanium coil in China, China's titanium welded tube industry has developed rapidly and even realized batch export. It can be seen that the production process and quality level of domestic titanium welded tube have been greatly improved than before.
Application of titanium welded tube
At present, titanium welded tube has become the preferred tube to replace stainless steel tube, copper nickel alloy tube and titanium seamless tube in many industries.
1. Application of in seawater desalination
In the past, most of the condensing tubes in China's seawater desalination equipment were copper alloy tubes, but their corrosion resistance was poor, and with the increase of copper price, the cost also increased a lot.
Later, stainless steel welded tube with good corrosion resistance gradually replaced copper alloy pipe and became the main material for condenser tube. The application of titanium welded tube is also gradually developed. Many countries prefer to use titanium welded tube with high cost but better corrosion resistance.
2. Application in power industry
Both thermal power plants and nuclear power plants need to use a large number of heat exchanger devices, such as condenser, condenser, heat exchanger and so on. Most of these power plants use seawater as the cooling medium. Generally, titanium welded tubes with corrosion resistance and long maintenance cycle are used as the cooling tubes.
3. Application in petrochemical industry
In some fields of petrochemical industry, such as coolers used in crude oil refining and p-xylene production, it is not suitable to use stainless steel welded tube, which is very prone to pitting corrosion, so titanium welded tube must be used.
In the chemical industry, many highly corrosive devices can only use titanium welded tube to ensure the normal operation of the equipment and reduce the maintenance time and frequency.
4. Sports industry
Stainless steel welded tube is mainly used in sports equipment, but titanium welded tube is also widely used in sports goods. At present, golf clubs and bicycle frames are widely used.
5. Application in aerospace industry
In the field of aerospace, titanium welded tube has incomparable advantages compared with stainless steel welded tube. It can not only reduce the weight of the aircraft, but also prolong the service life and reduce the maintenance time.
In short, the practicability of titanium welded tube is very high, but the price is expensive. With the progress of production process and technology, the price of titanium welded tube will be gradually reduced and accepted by the majority of users.
