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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.
Explan the Drive or traction unit Hydrostatic drive is provided for traction with a two speed gear-box. High speed is for travelling and low speed for working. Speed is in
Use of hartung governor
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A shaft carries three pulleys A,B and C. the pulleys B and C being 1.2m and 2.1m from A. the pulleys are out of balance to the extent of 0.03, 0.05 and 0.04kg.m respectively and ar
How does the maximum the 10'''' flange horizontal offset allowable.
Q. Explain about Surface Preparation? All oil, grease, salts, and any other contaminants detrimental to the formation of a good coating bond or coating quality must be removed
what is atomic vibration
Heat Treatment of Tool Steels This treatment in case of tool steels in a significant step before actually employing the tool. Most properties are attained after heat treatment
Plate clutch lifter bolts for even tightening : Reset clutch assembly using plate lifter clutch alignment tool.
describe equivalence of kelvin planck and clausious statement
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