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SHIELDING GASES
Shielding gas is directed by the torch to the arc and weld pool to protect the electrode and the molten weld metal from atmospheric contamination.
Argon and helium or mixtures of the two are the most common types of inert gas used for the shielding. Argon hydrogen mixtures are used for special applications.
A 3-phase, 15-kV, 4-pole, cylindrical rotor synchronous generator is connected to a 50-Hz infinite bus. The synchronous reactance of the machine is X s = 0.6 ohms per phase and th
Orthographic Projections: As you learned previously about the theory of projection of points, planes and lines, the next significant is the projection of solids that have thre
Q. Applications of high temperature materials? A brief description of materials of construction used for common high temperature components in furnaces, boilers, superheaters,
General Phase of Radial Drilling Machine Steps- 1. Prepare a strong foundation for the value study. In radial drilling machine hole can not be produce in any angle.
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An experiment to determine the convection coefficient associated with airflow over the surface of a thick stainless steel casting involves insertion of thermocouples in the casting
Explain POINT ANGLE - Angle of drills It is also known as a cutting angle. Its most commonly used value for a large variety of materials is 118.Though,its varies from 80 to 140
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