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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.
Types in trusses
(a) What are the types of material used for making spanners? What are the uses of spanners? (b) Write down the uses of following tools and make neat sketches of the same : (i
A 1.2 m diameter steel pipe carries oil of relative density 0.822 under a head of 70 m of oil. What minimum thickness of 120 MPa (yield stress) steel would be required for a safety
Q. Show Piping Material Specifications? Piping Material Specifications include the development and / or review of material specifications, and the review of data sheets, materi
what is effectively of longitudinal joint
Q.What is Erosion-Corrosion in Steam Service? Depending on the steam quality, Let-down valves are subject to erosion-corrosion when pressure drop exceeds 1000kPa. Hard facing i
step to draw velocity and accelartion diagram
What is the Drilling operation Drilling operation can only performed in vertical direction. Hence drilling hole at angle is not performed by drilling machine. It is a big drawb
sir/madam, i would like to teach online how can i have to proceed
Commutator The function of a commutator is to change alternating current induced in the armature into unidirectional current. The commutator is of cylindrical shape and is made
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