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NUCLEAR APPLICATIONS OF ELECTRON BEAM WELDING
Electron beam has been applied to the fabrication of fuel elements for pressurised water reactors and the distinct advantages are:Vacuum environment prevents contamination of the weld joint and ensures that the weld metal possesses good corrosion resistance & mechanical properties. High concentration of weld heat, the concentration of thermal energy is an important advantage of EBW of plate t ype fuel element s. High concentration of heat reduces shrinkage and thermal distortion for example, in fuel elements welding, total transverse shrinkage weld seam is only 0:02 mm to 0:04 mm for electron beam welds. Complex welded structures of molybdenum are being EB welded.
Welding is a material joining process used in making welds and a weld is a localised coalescence of metals or non metals produced either by heating the materials to suitable temper
Q. Pressure Relief Valve Application? A general comparison of operational characteristics is given for the different types of pressure relief valves in common industrial use.
when correction couple should be applied?
Consider a simple single machine system. It consists of workpieces that enter the system, wait their turn to be processed on a single machine, and then depart the system. The workp
Helium Helium (He) is an inert, very light monoatomic gas, of atomic weight of 4. It is obtained by separation from natural gas. Helium is refined to a purity of min. 99.99
A 1.5m long column has circular cross-section of 5cm diameter. One of the end of the column is fixed in the position and direction and other end is free. Taking factor of safety as
Q. Show the Welding processes The following welding processes are permitted: Shielded Metal-Arc Welding (SMAW) - Do not use SMAW for the root pass of single side groove we
Comparison of Disc and Drum type Brakes Drum Brake Disc Brake Drum brakes have cooling problem because the friction occurs at internal surfaces,
First we focus on the inner region fluid (0 (solid body rotation) around the z-axis. The steady incompressible velocity field is given by ur=0 utheta=rw uz= 0. The pressure at th
Q. Show Material selection process? • Design life shall be based on project design criteria and normally 10 to 15 years' service life specified for well pads, 20-25 years for C
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