China Nonferrous Metal Industry Association titanium zirconium hafnium branch
1 titanium industry development present situation and the situation that face
1.1 of the properties and application of titanium
Titanium content in the crust is extremely rich in iron, magnesium, aluminum, after fourth, easy exploitation. Titanium and its alloys have high specific strength, corrosion resistance, no magnetism, low damping, high and low temperature performance, and carbon composites have good compatibility, good biocompatibility and other advantages, and has a superconducting, shape memory and storage characteristics of hydrogen, in space, land, sea and in the human body are widely used, is a contemporary most of the charm of technical metal material, by people praise for " space metal"," marine metal"," omnipotent metal".
Titanium is a modern metal, is an important strategic metal. Titanium application in national economy, reflect a country's comprehensive national strength, economic strength, national defense strength, new and high technology is the indispensable key material, currently the world's major economies are competing for the development of titanium industry. Throughout the history of the development of titanium industry in the world, the higher the degree of social modernization, the greater the amount of titanium, in other words, how much is a country advanced degree symbol.
Titanium is widely used, its largest application market of aviation and spaceflight fields, mainly for the wing, the wing box parts, fasteners, front and rear fuselage parts, ground beam, as the track, a rib in a wing, door and door frame, engine parts, gear, and airborne equipment, rocket, satellite, missile etc..
In the titanium market, mainly including petroleum, energy, metallurgy, light industry, pharmaceutical, medical, marine engineering and architectural decoration, automobile manufacturing, sports and other fields, several covers all of the industry. China's titanium market, development potential is the largest aerospace, but at present the biggest market is the titanium market, only chemical industry with titanium quantity occupies the titanium market of about 45%, iron and steel, electric power, medical, automotive and other fields with titanium quantity will also have great growth expectations.
1.2 foreign and domestic titanium smelting processing equipment, technology, quality current situation
1.2.1 titanium smelting
( 1) chloride production {aspcms: page}
CIS titanium rich materials since the two titanium dioxide content is low, calcium, magnesium oxide content is higher, using molten salt method, it is money the metallurgical workers composition using native resource paradigm. But its fatal weakness is also obviously, deputy produce a lot of waste salt.
At present the United States, Japan by boiling chlorination production technology the most advanced, the large scale for sponge titanium, titanium dioxide mass production has created favorable conditions, the United States of America 's biggest boiling chlorination furnace hearth diameter to a coarse TiCl4 5000mm, Nissan reached 500t / station. Due to the Japanese, America is using natural and artificial rutile, titanium rich materials of high taste, fewer impurities, so the high yield, low consumption," three wastes" little, labor productivity is tall. Beautiful day, using computer control of production.
As the raw material the reason, in addition to domestic CITIC Jinzhou ferroalloy limited liability company by fused salt chlorination, all manufacturers are using a sieve, sieve plate of boiling chlorination technology without production of crude TiCl4, because the hearth reaction section of smaller diameter, thus the furnace with low productivity, in order to overcome this problem, Zunyi the industry of titanium, titanium industry Fushun design the hearth diameter ( diameter 2400mm design capacity on the 97t / Taiwan, chlorine consumption per ton TiCl4 1.05t ), a 2560mm without sieve large boiling chlorination furnace, but so far, these two chlorination furnace have failed to reach design capacity. Due to various reasons, China in the nineteen eighties began large-scale chlorination furnace industrial test stops, cause our country in a large-scale chlorination furnace design and lack of basic data. The chloride is the China and foreign advanced technology gap larger procedure.
" Eleven five" period, Luoyang double end Wanji, according to Bao industry were introduced from abroad a full set of diameter 2400mm ( design capacity on the 125t / Taiwan, chlorine consumption per ton TiCl4 0.95t ) large boiling chlorination furnace production technology, is currently undertakes the technology tackles key problem, through digestion and absorption of foreign advanced technology, in order to reduce our chlorination technology the gap with foreign countries.