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There is hardly 1.5 to 2.0% loss in induction melting of steel but even it can be also avoided with the help of covering of crucibles. just open it at the time of charging only is the best practise to avoid oxidation & heat losses for Induction melting for steel.
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How much loss is considered during gas cutting work for mild steel plate?
Gas cutting & burning loss calculation chart required for mild steel plate?
Why friction and windage loss for an induction motor remain constant with change of stator voltage?
Because the RPM remains same
Core loss of an induction motor?
Just like a transformer, the core losses are a combination of eddy current losses and hysteresis losses.
Disadvantages of a squirrel cage motor?
Squirrel Cage Induction Motor Disadvantages:Some of disadvantages or demerits of squirrel cage induction motors are listed below:Main disadvantage of squirrel cage induction motor is that they have poor starting torque and high starting currents. Starting torque will be in the order of 1.5 to 2 times the full load torque and starting current is as high as 5 to 9 times the full load current. In slip ring induction motors, higher starting torque can be attained by providing an external resistance in the rotor circuits during starting of the slip-ring induction motor. This arrangement in slip-ring induction motors also reduces the high inrush currents during starting of induction motor.Squirrel cage induction motors are more sensitive to the supply voltage fluctuations. When the supply voltage is reduced, induction motor draws more current. During voltage surges, increase in voltage saturates themagnetic components of the squirrel cage induction motor.Speed control is not possible in squirrel cage induction motor. This is one of the major diadvantages of squirrel cage induction motors.The total energy loss during starting of squirrel cage motor is more compared to slip ring motors. This point is significant if the application involves frequent starting
What is the need for semiclosed slots in squirrel cage induction motor?
By using semi closed slots , we can increase the air gap thus by reducing magnetizing current & pulsation of flux in individual teeth by reducing tooth loss. That's why the efficiency is also increased.Mahavirc.v.raman college of engg.Electrical department
What is the melting loss of steel in a cupola furnace?
First of all to correct that Cupola Furnace is used to melt Pig Iron to make Cast Iron not the Steel. As per practice the melting loss in Cupola furnace is cosiderd as arround 4.00 %. Sirajuddin Khan Bolan Castings Ltd. Karachi, Pakistan
What is the Heat loss in blast furnace?
In a furnace large amount of the heat supplied is wasted in the form of exhaust or flue gases.. that s called as heat loss in a furnace..
What is the losses of three phase induction motors?
Iron Loss Copper Loss Frictional loss
What is meant by loss on ignition of lime?
loss of weight in lime in furnace
What is the melting loss for gold in Percentage?
8% loss on average
Does slip of induction motor depend upon core loss component?
No,
What is the equation to calculate power loss in an induction coil?
Kuchiki Rukia - BANKAI :DDDD
Is the Arctic melting?
YES the Arctic has seen ice loss.
Can harmons are used for pcos and high prolectin medicines during Atkins induction will it stop your weight loss?
pl give the answer about using medicines in Atkins induction is wright or wrong
Does candle loss mass when melting down?
Yes off-coarse
Is AOD furnace used in non-ferrous alloy?
AOD furnace is not used in non-ferrous alloys. AOD = Argon-oxygen process. - AOD process is a widely used method for making quality steel. The charge is melted in an electric furnace and after a slag off it is transferred to the AOD vessel for refining, alloying and final finishing. - The tuyers arranged in a semi circle around the side near the bottom blow process gasses inside the AOD vessel. - The slag is reduced and final additions are made after a preliminary analysis. - The vessel is turned down for sampling, temperature measurement, slag off and tapping and the heat is poured into the ladle for further use. In AOD process there is continual thorough stirring of heat. - The method provides a very close control of heat chemistry. - Computer control ensures repetitive uniform melting and refining. - AOD refining reduces the hydrogen content to about half the value in electric furnace melting. - There is minimal loss of chromium to the slag.
What is the melting loss for gold in percent?
it's is a yes and the 2 are magma and granite.
