Application of titanium in civilian areas

Application of titanium in civilian areas

The use of titanium analysis
Titanium is the youngest of the new project of metal, the successful development of titanium from the sixties, through forty years of development
Titanium has been known only to a third metal iron, aluminum, and the reason is not only that it has a high specific strength, but also because it has
Exceptional corrosion resistance and good mechanical properties and comprehensive process performance;
The inception of the company in the production of precision parts titanium and titanium alloy materials and titanium responsibility, specializing in titanium and
Manufacturing process development of titanium standard parts, non-standard parts, special-shaped pieces; the main production of titanium alloy forgings, forged bars, a variety of titanium alloy
Gold hex, hex bolts, nuts, non-standard auto parts, flanges, pipe fittings, elbow etc;
Thanks to titanium feedstock titanium sponge production process improvements and advances in alloy melting and forging process, making
Titanium costs dropped significantly from the original military and aerospace industry gradually shifted general industrial applications, the most important
Is as corrosion resistant structural materials in the petrochemical industry, the soda industry, electrolytic plating industry, pharmaceutical industry, and environmental
Protection, medical devices are widely used;
In the chemical and related industries and corrosive media project, a large number of compromised machines and equipment corrosion; it is estimated that
There are several million tons per year worldwide due to corrosion of steel scrap, accounting for about one-tenth of the total production loss due to corrosion and can not be recovered, rot
Eclipse not only scrapped a lot of metal materials, but also causes pollution and hazards; due to corrosion, can cause an explosion,
Combustion, resulting in accidents caused by the disaster;
Modern society is generally based on corrosion-resistant stainless steel as the best material in manufacturing various types of production materials, with titanium technology
Mature and progress, the price has dropped significantly, showing a good price, titanium and stainless steel corrosion resistance comparison:
(1) stainless steel prone to corrosion and stress corrosion cracking in the oxide,
(2) has a tendency to intergranular corrosion in many media, weld and heat affected zone is particularly sensitive to intergranular corrosion,
Localized corrosion resistance of titanium, titanium and experiments show that stainless steel, aluminum, copper alloy, nickel alloy, compared with a superior
Resistance to localized corrosion:
(1) Good resistance to crevice corrosion;
(2) resistance to seawater and oxide pitting;
(3) corrosion resistance of welded joints, prone to intergranular corrosion of stainless steel;
(4) high corrosion fatigue strength, corrosion fatigue phenomenon is relatively rare titanium, titanium corrosion fatigue limit in seawater is equal
Or slightly higher than the fatigue limit in air;
(5) resistance to stress corrosion cracking of titanium in chemical plant, in general, do not stress corrosion cracking occurred, and stainless steel to stress
More sensitive to corrosion cracking;
(6) due to abrasion medical grade titanium alloy oxide surface protective film layer of dense, oxide film in a certain environment, as well as the rapid birth
Long and repair capacity, and thus the titanium is in the passive state of the environment, such as seawater, neutral hydrochloric acid solution, gasification has good acid
Anti-abrasion capability;
Corrosion resistance of titanium gr 2 can be further enhanced to improve, a new titanium now constantly synthesized successfully in some special
Special environment, according to the requirements of the various properties of synthetic titanium; such as: titanium-palladium alloy, titanium, molybdenum-nickel alloy ......
Titanium in seawater, ordinary water, wet chlorine chlorine, chlorine dioxide, nitric acid, chromic acid, acetic acid, ferric chloride, copper chloride, melting
Melting sulfur, chlorinated hydrocarbons, hypochlorous acid, hypochlorite, chlorine bleach, lactic acid, phthalic acid, urea, a variety of organic compounds, below
3% and less than 4% H2SO4 HCL has excellent corrosion resistance;
Hydrofluoric acid, fluosilicic acid, a fluorine-containing compound solution, the concentration of more than 3% HCL, more than 4% H2SO4, not inflated boiling formic acid,
Boiling concentrated aluminum chloride, phosphoric acid, oxalic acid, dry chlorine, fuming nitric acid corrosion reducing these poor, so the need to synthesize titanium
Alloy to improve corrosion resistance, such as titanium palladium alloys, nickel-titanium-molybdenum alloys have a very stable performance in particular aspects of corrosion resistance.