OST 88.00.021.228-76. Sheets of fused tantalum.
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Features of fused tantalum
Fused tantalum is a refractory metal produced by the method of casting from powder blanks. The material is used in the electronics industry and metallurgy.
The electronics industry is the largest user, where it uses fused tantalum according to OST
Fused tantalum is well welded, and also subjected to finishing high-speed cutting. If plastic deformation is required from fused tantalum, it is possible to produce a variety of sheet products using the drawing, perforating, extrusion, bending and molding operations. Hardening during pressure treatment is rather low.
Buy sheet fused tantalum, which is produced in accordance with the norms of OST
Punching and stamping operations
Fused tantalum is characterized by an average weldability. Preferably, friction and pressure welding are used. Pressure welding should be carried out under water. Diffusion welding is most successful when the material to be bonded is thoroughly cleaned of contaminants. Fused tantalum does not lend itself to heat treatment.
When hot forging, a preliminary annealing is performed. Recrystallization of the structure in the metal occurs in the temperature range 2000… 2500 0 С, and as the equipment should be used vacuum furnaces. High-vacuum oven is strongly recommended.
Hardening during cold plastic deformation is insignificant.
Buy sheets of fused tantalum, which meet the technical requirements of OST