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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.
Q. Formed heads of vessels? Formed heads are generally of 2:1 semi ellipsoidal form, but other heads may be used, such as hemispherical, torispherical, conical and toriconical.
A shaft transmits 200kw at 180rev/min between a prime mover and a water pump. calculate the strain energy stored perunit length of the shaft and hence the angle of twist in the sha
To select the project, if not already done - Radial Drilling Machine Due to above Problem?s in RADIALL DRILLING machine, now the select the project and solves the problems and
what absorber
A small producer of specialist vehicles is building a new workshop to meet expected demand for its products over a period of 5 years. The workshop will contain three workcentres,
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The joint bevels shall be prepared in accordance with the registered and approved weld procedure. Internal and external surfaces to be welded shall be clean and free from paint, o
Find out the centre of gravity of a wire: Find out the C. G. of a wire of uniform cross-section bent into shape of a semicircle as illustrated in Figure. Solution
Drive Chain Cleaning and Adjustment : The service life of the drive chain depends on proper lubrication and adjustment. Poor maintenance can cause premature wear or damage to driv
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