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Answer Posted / shamant
STANNUM
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WHAT IS THE ACTUAL DEFINATION OF PLANET?
Explain the uses of iron ferrite?
What is round-robin scheduling in OS?
What is the hottest part of flame in fire?
What is the use of damper?
Which of different types of cast irons is stronger? Is their strength superior to steels?
how would you find out the type of stailess steel that has been used to make your dish?
Define what is the different between ferrite percentage and ferrite number?
Define what is the metallurgical explanation of effects of chromium, nickel, molybdenum, and carbon in stainless steels?
What is the use od d2?
What are ceramics?
Define what is the strongest metal?
Does case harden steel properties detoriates over time? Especially for guns, parts like bolt carrier, the brand new parts has been kept for 10 year and properly oiled. I am worried about its surface hardness to take the blow during firing.
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.
what should be the exact suction capacity for 3 to 5 mt capacity lead rotary furnace and length of duct line for proper suction for same
