Titanium plate has high corrosion resistance and specific strength, and is widely used in electric power, chemical industry, aviation parts, building materials, sports equipment, medical and other fields and is still expanding. From the point of view of use and manufacturing technology, titanium plate has low price, high performance, multiple functions, and easy production. From the point of view of application expansion, titanium alloys represented by Ti-1Fe-0.35O, Ti-5Al-1Fe, Ti-5Al-2Fe-3Mo (mass%) make full use of cheap Fe, O, N and other elements. It is a pure titanium plate that is used for various surface finishing and to improve discoloration resistance. A remarkable feature of titanium plate is its strong corrosion resistance, which is due to its strong affinity for oxygen, which can form a dense oxide film on its surface, which can protect titanium from medium corrosion. , It has good stability in neutral salt solution and oxidizing medium, and has better corrosion resistance than existing stainless steel and other commonly used non-ferrous metals.
The quality of the titanium plate depends to a large extent on the smelting process of the titanium plate manufacturer, including the chemical composition of titanium, the cleanliness of titanium water (gas, harmful elements, inclusions) and the quality of the slab (component segregation, decarburization and Its surface condition), these aspects are the key control points of the smelting operation. In addition, the industrial titanium plate also requires sufficient hardenability to ensure uniform microstructure and mechanical properties of the entire spring section. The main cause of fatigue cracks is oxide inclusions in titanium, and D-type inclusions are more harmful to fatigue life than B-type inclusions. Therefore, the AATI titanium Factory has put forward higher requirements for oxide inclusions in industrial titanium plates. In order to produce high-quality industrial titanium plates, special smelting methods such as electric furnace-electroslag remelting or vacuum arc remelting are usually used in the past.
Due to the special physical and chemical properties of titanium plates and titanium rods, their welding processes are very different from other metals. Titanium welding is a TiG welding process that effectively protects the welding area by inert argon gas. Before using argon gas, check the factory certificate on the bottle body to verify the purity index of argon gas, and then check whether the bottle valve is leaking. or malfunction. The metal in the welding zone is not polluted by the active gas N0H and the harmful impurity element CFeMn above 250 ℃. The purity should not be lower than 99.98% and the water content should be less than 50Mg/m32. Argon: industrial grade pure argon. A coarse-grained structure cannot be formed. The welding process must be in accordance with the predetermined construction sequence, and can not produce large welding residual stress and residual deformation. Therefore, in strict accordance with the quality management standards of the process, the quality control of the whole process is implemented, so that the factors of people, machines, materials and practices are in a good state of control, so as to ensure the welding quality of titanium pipes within a reasonable construction period.