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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.
what is internal combustion engine
Q. Wind Induced Vibration of Vertical Vessels? Vertical vessels having a height-to-diameter ratio (h/D) (does not include insulation thickness but does include skirt height) gr
Q. Corrosion in Boiler? With proper BFW treatment, and maintaining pH within a certain range (9.2 to 9.4) and removing oxygen from the system, a stable passive film will be for
Q. Flange Facing and Surface Finish? Raised face flange facings are preferred. Flat face flanges to be used only when mating with like equipment (fabricated from brittle mat
Due Diligent: There are many literatures on sand blasting and manufacturing processes. Historically, sand blasting had been used for many tasks before. It was pretty famous
Define the term Miller Indices. Miller Indices are a process of explaining the orientation of a plane or set of planes into a lattice within relation to the unit cell. They wer
A double shoe brake as shown in the figure is capable of absorbing a torque of 1400 N-m. The diameter of the brake drum is 350mm and the angle of contact of each shoe is 100°. If t
In a 15 TR ammonia refrigerator plant the condensing temperature is 25 0 C and the evaporative temperature is -10 0 C. The refrigerant ammonia is subcooled by 50C before passing th
Determine hardness of material: Hardness is surface property. It can be defined as resistance of material against permanent deformation of surface in the form of scratch, inde
GAS METAL ARC WELDING-PRINCIPLE OF OPERATION Gas Metal Arc Welding (GMAW) is one of the arc welding processes in which an electric arc is formed and maintained between a continuo
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