Development status of domestic titanium strips

Titanium and titanium alloys are processed into products such as plates, strips, foils, tubes, rods, wires, forgings, castings, and composite materials. Titanium plates and strips are the most important product forms, but the processing of titanium plates and strips The process performance is poor, and the cutting process is difficult. In hot processing, it is very easy to absorb impurities such as hydrogen, oxygen, carbon, and nitrogen. At the same time, the wear resistance of the titanium plate and strip is poor, and the production process is complicated. Before 2007, the industrial production of titanium foil sheet in China was in a blank state. Titanium strips and coils were completely dependent on imports. The procurement costs were high, the cycle was long and the quality was unstable, which seriously affected the development of the downstream application fields of titanium strips and welded pipes. In recent years, many domestic enterprises represented by Hunan Xiangtou Jintian Technology Group have successively rolled hot-rolled titanium strips and cold-rolled titanium strips, the production technology of hot-rolled and cold-rolled pure titanium strips, and the heat treatment of strips. Technology, rolling process control technology, and other aspects have made great progress. With the acceleration of the construction of domestic nuclear power and PTA projects and the demand for localization, the demand for thin-walled titanium welded pipes, chemicals, and plates to replace titanium plates is becoming more and more strong. The total amount of processed materials is 59.2%, of which the output of titanium coils accounts for more than half. For applications in the field of nuclear power condensers and heat exchangers, the use of titanium coils has the advantages of high-quality stability, suitable for batch continuous production, short production cycle, and cost reduction compared with the use of block single sheets. The product has become the preferred material for welded pipes and plate heat exchangers for nuclear power.