Seamless Titanium Tube Production Process And Product Characteristics Analysis

Seamless titanium tubes produced in the market at present generally use cold rolling vacuum annealing process, from titanium ingots through forging bar billets, made into billets, billets through multiple rolling and annealing process, and finally molded into seamless titanium tubes. In the production of billet, mainly divided into two production processes, one way is drilling and extrusion production of billet. This way of titanium metal consumption, billet wall thickness uniformity, the selection of suitable glass lubricant becomes the key to extrusion, and requires a larger tonnage of the extruder, the equipment investment is larger; the other way is the production of steel pipe commonly used in the slanting roll perforation. The way of titanium metal consumption is small, the billet thickness tolerance is slightly larger, the piercing process sometimes appears through the phenomenon, the top head is stuck in the billet, which is the current production technology is worth studying the technical difficulties. Although the processing technology of seamless titanium alloy pipe is relatively mature, but due to the limitations of the existing equipment, the current titanium tubing is still mainly low-strength, low-alloyed pure titanium, titanium, molybdenum and nickel and other low-intensity titanium tubing as the main material, the processing technology is still mainly cold-rolled. The production of medium and high-strength titanium alloy tubes, such as Ti-6Al-4V tubes, it is necessary to use warm rolling technology, that is, in the rolling mill to increase the induction heating device, the titanium tube for further heating, and then rolling.