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Welding HeadSubmerged arc welding head consists of the wire spool, wire feed system, flux delivery hopper and electrical contact nozzle. The electrode wire is unwound from the spool by the power driven rolls, straightened by a set of pressure rolls and fed through the contact nozzle into the weld pool. The drive for wire feed is from a motor with speed control provided either by means of a gear box or by means of thyristor controls.
vacuum gauge indicates that the pressure of air in a closed chamber is 0.2bar(vacuum).The pressure of the surrounding atmosphere is equilent to a 750-mm column of mercury.The densi
draw the projection of pentagonal pyramid have 30 mm edge and axis 50 mm long having base on hp and an edge of the box parallel to vp
TUNGSTEN INERT GAS WELDING (TIG) In this process, an arc is struck between a non consumable tungsten electrode and the base metal. The tungsten electrode is called non consumab
Q. Determine the Bolt Torque? The value of the bolt torque, which will give the desired bolt stress, can be calculated from Equation. The friction coefficient (K) is for a well
Induction Pressure Welding In this process, the current is induced by high frequency induction process in the job. Due to electrical induction the job is heated. When a suitabl
Grinding Wheels Implicated to be rotated at relatively high rotational velocities within grinding machines, grinding wheels contain a surface of rotation about a central axis.
extraction of refractories
Find out the effort required to run this machine: The efficiency of a machine is 75% while an effort of 20 N is required to lift a load of 160 N. Compute the velocity ratio an
Steel Rule: A steel rule is used to measure length. It has two scales - in millimeters and inches. These rules are available in market in discrete lengths such as 15, 30, 60 cms.
The Ordinate Dimension Command We can use The Ordinate command to annotate co-ordinate points with X or Y values. This might be useful for setting-out on site plans.
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