A notable feature of titanium is its high corrosion resistance due to its high affinity for oxygen, which produces a dense oxide film on its surface that protects the titanium from dielectric corrosion. Metal titanium can form a passivation oxide film on the surface in most aqueous solutions. Therefore, titanium has excellent stability in acidic, basic, neutral salt aqueous solutions and oxidizing media, and is superior in corrosion resistance to existing stainless steels and other non-ferrous metals. So what is the corrosion resistance of titanium in various fields? Titanium Alloy Bar Factory will come to tell you.
1. Chemical industry
In chemical production, titanium is used instead of stainless steel, nickel-based alloys and other rare metals as corrosion-resistant materials, which increases production, improves product quality, extends equipment life, reduces consumption, reduces energy consumption, reduces costs, prevents pollution, and improves Labor conditions and productivity improvements are all important.
In recent years, the range of titanium used in China's chemical industry has been expanding, and the amount of titanium has increased year by year. Titanium has become one of the main anti-corrosion materials in chemical equipment. It is mainly used in distillation towers, reactors, pressure vessels, heat exchangers, filters, measuring instruments, steam turbine blades, pumps, valves, pipes, chlor-alkali production electrodes, synthetic tower linings, and other acid-resistant equipment linings. As an excellent corrosion-resistant structural material used in chemical plants, titanium has established its position and has attracted more and more attention from engineers and technicians.
2. the oil industry
Titanium has very good stability in organic compounds except for five organic acids (formic acid, acetic acid, oxalic acid, trichloroacetic acid and trifluoroacetic acid) at higher temperatures. Therefore, titanium is an excellent structural material in petroleum refining and petrochemical industry. Titanium products such as Titanium Bar, titanium tubes, etc. can be used to make various reactors, pressure vessels, heat exchangers, separator piping, and distillation tower top condensation. Lining and so on.
Offshore oil and gas exploration is subject to seawater corrosion and stress corrosion for a long time. Recently, titanium pre-stressed oil pipe joints have been selected abroad. This joint is quick and easy to assemble, light in weight, and maintains elastic sealing. Titanium is the best preferred material. China's offshore oil industry is entering a stage of large-scale development. The structural components and key components and equipment of the current platform are imported from abroad, and domestic materials are rarely used. But it can be expected that titanium will find a broad market here.
3, the metallurgical industry
Titanium is an active metal with good gettering properties. It is an excellent degassing agent in the steel making industry. It can combine the oxygen and nitrogen precipitated by steel during cooling. Adding a small amount of titanium (<0.1%) to the steel makes the steel tough and elastic. Titanium is also an important alloying additive in industries such as steel making and aluminum smelting. Titanium is superconducting and is a common superconducting material. In addition, titanium has good stability in acidic solutions containing metal ions, so titanium in the metallurgical industry, such as copper, nickel, cobalt, manganese and other non-ferrous metals. Since the 1980s, many metallurgical enterprises in China have begun to use Titanium Sheet in technological transformation. The use of these new technologies and new equipment has brought the equipment of China's nonferrous metallurgy industry closer to the world's advanced level. In the electrolytic production of titanium, it has a very wide range of applications.
The above is an analysis of the corrosion resistance of titanium in the chemical, metallurgical and petroleum fields.
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