There are currently 6 sponge titanium production plants in foreign countries. Except for the US Timet company's production capacity of 8000t/a, other annual production capacity is above 10,000 tons. Among them, the titanium consumption of Japanese titanium sponge is 0.9t/t sponge titanium, and the steaming power consumption is 2500kWh/t sponge titanium, which is lower than the similar indicators of domestic enterprises.
The fundamental problem in the application of titanium is to reduce costs. For this purpose, on the basis of TiO 2 in Cambridge, UK electrolysis preparation of titanium metal, the United States Timet company has invested heavily in active industrial test of the method, while Japan is engaged in the improvement of industrial Cambridge test method, it is possible After 5 years, it was put into preliminary industrial production. This new approach will reduce the cost of titanium from one-third to one-half, which could lead to a revolution in the titanium industry.
Titanium processing materials in the United States, Europe and Russia are mainly used in large-scale civil aviation aircraft, military aircraft, space rockets, missiles, ships, armored artillery, electric power, chemicals, automobiles and other fields. Typical products are aircraft structural parts, titanium brake components, compressor blades and pedestals, hydrofoils, propellers and shafts, brackets, floats, torpedo launchers, high pressure gas cylinders and all-titanium condensers. To this end, they have developed large-scale electron beam or plasma cold-bed furnace smelting furnaces, large-scale profile production lines, and large forging production lines (Russian Salda has the world's largest 75,000-ton hydraulic press capable of producing titanium forgings weighing 3.2 tons). Large casting production line with a single piece weight of 770Kg or more. In the new titanium alloy, they developed a high temperature titanium alloy of 600 ° C (IMI834 alloy in the United Kingdom, Ti-1100 titanium alloy in the United States), high-strength titanium alloy (such as Ti-1023, Ti-15-3, β21S in the United States, etc.) , flame retardant titanium alloy Al-loyC (Ti-35V-15Cr), TiAl alloy, and low cost titanium alloy (such as Ti-4.5Fe-6.8Mo-1.5Al in the United States).
The civilian technology of Japan's titanium industry is at the forefront of the world. If there is a sponge titanium enterprise with the best economic indicators, there is a large coiled titanium belt production line of Yigang and Titanium. Its civilian titanium products are used in chemical, petrochemical, construction, metallurgy, medical (human implants, wheelchairs, etc.), transportation (automobiles, motorcycles), sports (golf tools, tennis rackets, fishing gear, fishing boats, etc.), daily use. Electronic products (cameras, watches, copiers, typewriters, mobile phones, laptops, etc.), cookware (knives, forks, pots, shovel, etc.).
From the development status of world titanium technology, its development trend can be summarized as follows:
1. Low-cost preparation and processing technology of titanium, including low-cost production of titanium sponge, titanium alloy material design and processing, which is a prerequisite for further expansion of titanium.
2. Large-scale high-quality titanium alloy billet preparation technology, including new electron beam and plasma cold bed furnace smelting technology.
3, high-efficiency, short-flow titanium alloy processing technology, including single cold bed furnace smelting direct rolling technology, titanium belt continuous processing technology production.
4, near net forming technology, including laser forming, precision casting, precision die forging, superplastic forming / diffusion bonding, powder metallurgy, spray forming.
5. Promotion and application of titanium, including biomedical titanium, titanium for automobiles, titanium for construction, etc.
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