1. High temperature heating and rapid cooling
Since titanium material has a high melting point and special crystal structure, high-temperature heating is required during processing. However, titanium flange has a greater tendency to overheat, and high-temperature heating will cause beta grains to grow rapidly. If the deformation is insufficient, a coarse structure will be formed after cooling, which will significantly reduce the periodicity and fatigue strength of the flange. Therefore, the heating temperature and cooling rate need to be precisely controlled during processing to ensure that the microstructure of the material is uniform and fine, thereby ensuring the mechanical properties of the flange.
2. High deformation resistance
The deformation resistance of titanium flange is very sensitive to the decrease of deformation temperature or the increase of deformation rate. In order to improve the plasticity of titanium flange, it is usually necessary to heat the metal to the β phase region above the phase transformation point and perform so-called β processing. This processing method can improve the plasticity and toughness of the material, but it also increases the processing difficulty and cost.
3. High thermal processing technology requirements
The thermal processing process of titanium flange mainly includes forging, rolling and extrusion. These processes have a significant impact on the dimensional accuracy and intrinsic quality of materials. Due to the particularity of titanium material, the correct selection and mastery of process parameters is not only very important to ensure the dimensional accuracy of the product, but is also a key factor affecting product quality. For example, during the forging process, the forging temperature, deformation amount and cooling rate need to be strictly controlled to ensure uniform structure and stable performance of the material.
4. Surface treatment and quality control
Titanium flanges also need surface treatment after processing to improve their corrosion resistance and aesthetics. Common surface treatment methods include polishing, pickling and electroplating. In addition, in order to ensure product quality and reliability, titanium flanges require strict quality control during the manufacturing process, including raw material inspection, process monitoring, and finished product testing. These quality control measures can effectively prevent defects and ensure product performance and service life.
5. Complex heat treatment process
The heat treatment process of titanium flange is also an important feature of its processing technology. Heat treatment can improve the mechanical properties and microstructure of materials. Common heat treatment methods include annealing, quenching and aging treatment. These heat treatment processes need to be selected and optimized based on specific material composition and performance requirements to ensure the best overall performance of the flange.
To sum up, the processing technology of titanium flange has the characteristics of high temperature heating and rapid cooling, high deformation resistance, high thermal processing process requirements, strict surface treatment and quality control, and complex heat treatment process. These characteristics require the use of advanced technology and equipment in the manufacturing process of titanium flanges, which also increases its manufacturing cost and difficulty. However, it is these unique processing techniques that give titanium flanges excellent performance and wide application prospects.