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LOW ALLOY CREEP RESISTING ELECTRODES AND ELECTRODES FOR CRYOGENIC APPLICATIONSThe flux coating contains small amount of alloying elements like Cr, Mo and sometimes V for creep resistance. By addition of these alloys these steels become air hardening and therefore preheating and stress relieving after the welding are a must. The electrodes in this category are known as 5 Cr-½ Mo. For cryogenic applications the addition of Ni 3.5 % is very useful. Such steels can be used u p t o ( i . e ) 5 0° C to - 60 ° C with 2.5 % Ni and upto 100 ° C with 3.5% Ni.
Q. Local operator panel for steam generator? A local operator's panel is required for operator use during Steam Generator light off. This panel shall contain the following equ
MIG / CO 2 WELDING In MIG / CO 2 welding the feeding of filler wire is machanised. If the welder moves the MIG / CO 2 torch the process is called semi automatic MIG / CO 2
‘coefficient of insensitiveness’ of governors
This components extensively used teh specialized and / or general purpose software. Often it may development for typical application and to perform calculations in the design
Evaluate the specific enthalpy - thermodynamics: Steam is being generated in a boiler at a pressure of 15.25 bar. Calculate the specific enthalpy when ( i ) Steam i
STEP S FOR SOLVING PROBLEM FOR FINDING POWER: 1. Use formula stress (s) = force (Maximum Tension)/Area Where; Area = b.t that is, Tmax = σ.b.t 2. Unit mass (m) = r.b.t.
what are the functions of a lubricating system
Q. Show the design of the control rooms? The design of the control rooms in any plant is very important. The control room operator(s) must be able to control and manage safety
Tension in the strings: Sol.: When weight is attached to string then it will be in tension. The diagrams are shown below to describe this particular concept.
Foil Butt Seam Welding This is a modification of seam welding, in which thin narrow strips of metal arc introduced between one or both of the circular electrodes and the work p
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