what is the difference between digital signal and discrete signal?

1 Answers  

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What is spcc material?

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Explain super alloys. What makes them useful for land-based turbines?

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I currently use 17-7 PH stainless which is hardened to condition CH after forming. raw matl is .1.75"X .12" X .008". Its main usage after hardening is silicon wafer retainer where it's contantly cycled up and down to putin and remove wafer after 40-60 sec process at 400C temp. At this high temperature this part seemed to deform after a a couple of hundred wafer which is what it was designed for in the first place. THere is a proposal to go to a different material to increase lifeline of this part. My question is..... can 321 SST be a plugin replacement. I know this has a higher temp rating but how about its forming characteristics, will it have spring properties, and wont become brittle after prolonged exposure to 400C.

0 Answers   Novellus,

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while calculating Steel Round Pipes, if one pipe costs 51.125 per meter then what will be the price per kg?

3 Answers   Jindal,

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Why is non-destructive testing necessary?

9 Answers  

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On which basis annealing cycle of steel bars of UpTo 6 MTR can be decided.we r charging 40-45 metric ton load for annealing in bogie furnace?

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What is iron ferrite, define what is it used for, and where is it found?

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What is the specific heat value for liquid ?

0 Answers   NIC,

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Throw some light on hardening abilities of metals?

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What is a gray surface?

0 Answers   Essar,

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A plain carbon steel contains 45 wt% of proeutectoid ferrite. What is its average carbon content in weight percent? I know that you need to use a tie line in the phasediagram, but my book does not really give a good example to go by?

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