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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.
Orthographic Projections: As you learned previously about the theory of projection of points, planes and lines, the next significant is the projection of solids that have thre
Q. Explain about Corrosion Rates? Corrosion rates of Corrosion data presented in these standards are in graphical form. The corrosion curves for the majority of the metals
Forces working on sphere: Let a sphere of mass m, suspended by means of a string, resting against a smooth wall, as illustrated in Figure (a). What are the forces working on i
Multiple Spot Welding This is a modification of spot welding, in which two or more than two welds can be obtained simultaneously from each transformer secondary. For specific pro
An unsymmetrical I-Section as shown in figure below. If maximum bending stress is not extend more than 40MPa in the section than find out the moment which it can bear
venturimeter
Q. Examination requirements and acceptance criteria for weld? Examination requirements and acceptance criteria shall be in accordance with ASME Code, and the requirements of th
Use s of Carnot Cycle: 1. It helping us to appreciate what factors is desirable in the design of practical cycle; namely a maximum possible temperature range. 1 maximum p
Advantages and disadvantages of solid fuels
Instantaneous stress and elongation: What shall be the instantaneous stress & elongation of a 25 mm diameter bar, 2.6 m long, suspended vertically, if any mass of 10 kg falls
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