New requirements for the application of titanium and titanium alloy plates in the chemical industry
Titanium is an inert metal, its chemical symbol is ti, its atomic number is 22, and it is a silver-colored metal. Specific gravity is 4.51 and melting point is 1668. It is very abundant in the earth's crust, it is second only to iron, aluminum, magnesium, ranking fourth, more than the sum of commonly used metals copper, nickel, lead, zinc more than ten times.The ores used industrially to produce titanium are rutile, ilmenite and titanium magnetite. Due to the difficulty of separation and extraction, titanium metal of industrial significance was not produced until the 1940s. Therefore, titanium is generally referred to as a rare light metal. Due to the different titanium and titanium alloy products needed in different fields, people process them into plates, rods, tubes, strips, wires and other shapes that can be further processed to meet the needs of different fields, among which titanium plates, titanium rings, titanium forgings and other applications are most widely used.
The following shares the specifications and performance of titanium plates commonly used in the chemical industry.
Implementation standard: GB/T3621-2007
The surface of titanium plate should be smooth and metallic in nature. The plate is allowed to be delivered with a sandblasted surface. The surface of titanium plate is allowed to have slight darkening and local water stains, local defects, scratches, indentations, pits and other defects not exceeding half of the thickness tolerance are allowed, but the minimum thickness should be guaranteed. The surface is not allowed to have cracks, peeling, oxide, indentation, metal and non-metal inclusions and other macroscopic defects and traces of over alkali cleaning. Titanium plate is allowed to clear local defects in the direction of rolling, but the thickness of the plate after removal is not less than the minimum allowable thickness.
In addition, the titanium plate should not be delaminated.
Titanium and titanium alloys have low density and high tensile strength, and it has almost the highest specific strength among metallic materials in the range of -253-600 degrees Celsius. It forms a thin, hard oxide film in a suitably oxidizing environment and has excellent corrosion resistance. In addition, it is non-magnetic and has a low coefficient of linear expansion. This makes titanium and alloys preferred as important structural materials for astronautics, and then extended to shipbuilding, chemical industry and other fields, and has been rapidly developed.Especially in the chemical industry, titanium and titanium alloy products are used in more and more products, like petrochemical, fiber, pulp, fertilizer, electrochemical and desalination industries, doing exchangers, reaction towers, synthesizers, autoclaves and so on. Among them, titanium plates are used as electrolytic plates and electrolytic tanks in electrolysis and desalination, and are used as tower bodies and kettle bodies in reaction towers and reactors, etc.
With the development of science and technology, the application field of titanium is also more and more extensive, such as medical, automotive, sports and other aspects. Through these also really reflect the titanium as a light metal, it has excellent characteristics more and more people know and can set, and with the fastest speed to replace other metals and into our production applications, and even our body.