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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 physics ?
Explain about structural design of combined footing. Structural Design of Combined Footing The rectangular and trapezoidal combined footings are designed assuming uniform so
A steel pipe with 50 mm OD is covered with a 6.4 mm asbestos insulation followed by a 25 mm layer of fiber-glass insulation [K = 0.0485 Wmk]. The pipe temperature is 393 K and the
Q. Alloy materials control? All low alloy and high alloy equipment components including fittings, flanges and sections of pipe and all welds shall be individually tested by Ven
A helical compression spring prepared of oil tempered carbon steel, is subjected to a load which goes from 600 N to 1600 N. The spring index is 6 and the design factor of safety is
MODERN ARC WELDING POWER SOURCES Recent advances in the field of solid state power electronics have helped to improve the status of welding power sources. With the development rel
Q. Show Piping Material Specifications? Piping Material Specifications include the development and / or review of material specifications, and the review of data sheets, materi
Q. Illustrate types of pipe racks? The following types of pipe racks may be required: • Interconnecting pipe rack (elevated). • Unit pipe rack (elevated). • Pipe ra
what is Direct and Reverse crank method of balancing
temperature measurement by thermocouple
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