The surface of titanium plate should be smooth and clean, showing metallic nature. The plates are allowed to be delivered on a sandblasted surface. The surface of titanium plate is allowed to have slight darkening and local water trace. Local defects are allowed, such as scratches, indentation, pits and other defects not exceeding half of the thickness tolerance, but the minimum thickness shall be guaranteed. The surface is not allowed to have cracks, peeling, oxidation, folding, metal and non-metallic inclusion and other macroscopic defects and alkali washing traces. The titanium plate is allowed to clear the local defect along the rolling direction, but the thickness of the plate after removal shall not be less than the minimum allowable thickness.
Titanium and titanium alloys have low density and high tensile strength. In the range of -253-600 degrees Celsius, their specific strength is almost the highest among metal materials. They can form a thin and hard oxide film in the appropriate oxidizing environment, with excellent corrosion resistance. In addition, it also has the characteristics of non-magnetic, linear expansion coefficient is small. As a result, titanium and alloy were first referred to as important aerospace structural materials, and then extended to the shipbuilding, chemical industry and other fields, and got rapid development. Especially in the chemical industry, more and more products are used in titanium and titanium alloy products, such as petrochemical industry, fiber, pulp, fertilizer, electrochemical and desalination industries, such as the exchange, reaction tower, synthesizer, autoclair, etc. Titanium plate is used in electrolysis and wastewater desalination as electrolytic plate, electrolytic cell, reaction tower, reactor body and so on.
With the development of science and technology, the application field of titanium is becoming more and more wide, such as medical, automotive, sports, etc., out by the reaction of these themes titanium as a kind of light metals, it has the good characteristics of more and more cognitive and can be set by people, and with the fastest speed into our production applications instead of other metals, even in our body.
