Titanium tube is mainly divided into seamless titanium tubes and welded titanium tubes. In the production of Titanium Alloy Pipe Wholesale, in recent years, due to the improvement of the mill body and the level of automation, the specifications of seamless titanium tubes will be further expanded, and the dimensional accuracy and product quality will be further improved, to produce more characteristic products to meet the needs of different industries. At the same time, the current titanium industry is not highly concentrated, the production enterprises should be based on the existing equipment, equipment renovation and upgrading gradually, and actively seek cooperation, through cooperation with large metallurgical equipment manufacturers, the use of large-scale equipment to expand the range of product specifications, the development of new products, and at the same time to improve product quality. In the titanium welded pipe, with the establishment of a titanium strip production line, titanium strip production process improvement, the quality of the strip product steadily improved, so that the titanium welded pipe itself reduced the cost of production and price stability. With the improvement of the welding quality of titanium pipe, will further expand the market share of titanium welded pipe, and gradually replace the use of seamless titanium pipe.
1, seamless titanium tube production process and product characteristics analysis
The current market production of Titanium Alloy Pipe Wholesale generally uses a cold rolling vacuum annealing process, from titanium ingots after forging billets, made into billets, billets after multiple rolling and annealing processes, and ultimately molded into seamless titanium tubes. the production of billet is 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, and the selection of suitable glass lubricant becomes the key in the 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, and the top head is stuck in the billet, this is the current production technology that is worth studying the technical difficulties. Although the processing technology of seamless titanium alloy pipe is relatively mature, 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. In 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.
2, welded titanium tube production process and product characteristics analysis
Titanium welded tube is a relatively unique Titanium Alloy Pipe Wholesale product, its production process is supported by cold rolled titanium coil tube shape, the use of tungsten inert gas shielded welding welded together. Due to the excellent seawater corrosion resistance of titanium, titanium welded tubes have gradually replaced stainless steel and copper alloy tubes as the preferred material for condensers and heat exchangers since the product was put into the market, and are therefore widely used in coastal power stations, desalination, marine oil and other condensers and heat exchangers that require seawater as the cooling medium. Compared with the titanium seamless pipe, titanium welded pipe can be used to manufacture thinner wall thickness of the pipe fittings, the minimum wall thickness can reach 0.3 ~ 0.5mm, while the minimum wall thickness of the titanium seamless pipe is about 0.9mm; at the same time, titanium welded pipe production of raw materials, high utilization rate, high production efficiency, good economic efficiency. At the same time, due to the titanium welded pipe has long length, and stable performance characteristics, petrochemical and other industries have a great demand for thick-walled titanium welded pipe, and the domestic development of thick-walled titanium welded pipe at present has made some breakthroughs, but the industrial production technology of thick-walled titanium welded pipe is not yet mature, which will be the next direction of development of the titanium welded pipe.
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