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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.
INTRODUCTION: At any point of time, it may be required to disassemble the whole or any part of motorcycle. Whenever a part of motorcycle malfunctions or is damaged then it may be
Internal combustion models of engine: The engines which develop power by combustion of fuel within the engine are called internal combustion engines. The examples of internal
Brass is an alloy of (A) Copper and zinc. (B) Copper and iron. (C) copper and Aluminium. (D) Copper and tin. Ans: Brass is an alloy of copper and zin
Drynes s Fraction of Steam: Dryness fraction of steam is factor which used to specify the quality of steam. It can be defined as the ratio of weight of dry steam W d s pr
Find out the centroid of an area of a semicircle: Find out the centroid of an area of a semicircle illustrated in Figure. Solution You shall note that it is not p
Cylinder Head: It is fitted at top of the cylinder block. It provides space for the arrangement of spark plug, combustion chamber, camshaft, cam chain, valves and intake and exha
(a) Draw neatly and accurately the Merchant force circle diagram. Mention clearly the forces involved, the constructional steps and the assumptions made [do not derive the forces]
WIRE MELTING CHARACTERISTICS A non linear relationship exists between the rate at which the wire is fed into the arc and the current required to burn it off to maintain a constan
Find out power transmitted by belt: A belt is running over pulley of 1.5m diameters at 250RPM. The angle of contact is 120º and coefficient of friction is 0.30. If maximum te
The joint bevels shall be prepared in accordance with the registered and approved weld procedure. Internal and external surfaces to be welded shall be clean and free from paint, o
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