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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.
There is risk of wet H 2 S corrosion in all emulsion and gas lines from the Inlet Separator up to and including the Treater. Full compliance to NACE is highly recommended to contro
(a) What is value of drive chain slackness? (b) Write about cleaning procedure and adjustment of drive chain. (c) What is the wear of drive chain, sprocket and adjustment of
Two similar heavy spheres of 50mm radius are in equilibrium within a smooth cup of 150mm radius. Give that the reaction between the cup of one sphere is just double than that betwe
temparature stresses in composite bars
WRITE THE SHORT NOTES ON SLUDGE AND SCALE
A piston and a cylinder machine obtains a fluid system, which passes through a complete cycle of four processes. In the mean while a cycle the sum of all heat transfer is 150KJ and
The Specifications for use on a project will be as defined in the ‘Project Execution Plan'. The specification requirements will be clarified in the Engineering Estimate or at the
Brake Wear Inspection and Free Play Adjustment: Brake wear inspection is very important because worn out brake shoe does not provide good braking. At some point of time they need
Example of Wedge friction: T wo blocks A and B are employed to raise load of 2000 N resting on another block C by the application of force P as shown in the figure g
Q. External coatings on vessels? All pressure vessels that will be installed underground shall have an external coating applied according to the following procedure: • All e
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