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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.
Forecasting: Forecasts play a vital role in determining material needs that constitute inventories and in establishing production plans. In this unit, you have studied the imp
Q. Can you explain the Mobile bed model? Mobile bed models can again be either geometrically similar or vertically exaggerated. Models of the former type permit study of proble
Q. Derive the expression of torque developed in closely excited magnetic system. Clearly explain then assumption made. Sol. Double - Excited System A doubly - ex
What is an open pair?
a steel bar is
instant center of direct contact slider
Define the nature of force in a member of truss: How can you define the nature of force in a member of truss? Sol.: We know that whenever force is applied on a cross se
Computer-Aided Design (CAD) CAD is used in design and development of new products in a diversity of applications both at commercial/industrial and on a home basis. Illustration
Conve r t following reading of pressure to kPa, supposing that the barometer reads 760mm Hg. (1) 90cm Hg gauge (2) 40cm Hg vacuum (3) 1.2m H 2 O gauge Sol: Given
Compound Stress: Define Compound Stress. Sol.: Simple stresses mean tensile stress or compressive stress or shear stress. The tensile and compressive stresses act on p
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