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SHIELDING GASES
Shielding gas is directed by the torch to the arc and weld pool to protect the electrode and the molten weld metal from atmospheric contamination.
Argon and helium or mixtures of the two are the most common types of inert gas used for the shielding. Argon hydrogen mixtures are used for special applications.
Safety Organization Each industry must have a safety organisation along with well defined objective and well identified functions. It has been experienced that safety policie
A piece of Al weighing 6 kg and initially at a temperature of 300 O C is suddenly immersed in a fluid at a temperature of 20 O C. The convectice heat transfer coefficient is 58 W/m
Problem: (a) What is the best paper to use when printing metallic inks? Explain your answer. (b) A multiple page printed document such as a book, brochure or booklet needs f
Question: A 3-phase, 15 kV, 4-pole, cylindrical rotor synchronous generator is connected to infinite bus running at 50 Hz. The synchronous reactance of the machine is X s = 0.
Q. Design Safe Areas for plant? A Safe Area in this manual is regarded as a space that is not ranked as being a designated hazardous area by the relevant Regional or Country st
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what is Next Generation Manufacturing Strategy?
discus the method to finding the width of impeller blades in a rotary air compressor
Safety Benefits - Industrial Safety An industry or a company which follows safety programmes is benefitted in several ways. The benefits are shared among employer and employee
Creating 3-d solid models Two basic approaches to create solid models are : (i) Constructive solid geometry (CSG or c-rep), and (ii) Boundary representation (b-rep).
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