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Do you know define what metal might be considered the “most environmental”? I say aluminum because it can be recycled others on my team say brass.
1114How is solution annealing carried out? Define what type of furnace is required? Does one need to be heat in a salt bath?
1051Define what is the melting point of e70 steel, 304,308,316 stainless steels? In addition, define what is the hottest part of the flame in a fire?
996Is there a possibility of inducing stress cracking in an insulated stainless road tanker vessel (20 tonne capacity) if the vessel is subject to rapid filling (10 tonne /hr) with liquid methane (-160 c) assuming the vessel is at ambient. If so, where could I obtain suggested cooling rates?
1080Is there any way through hardening and anodizing some type of aluminum, it could be as hard as steel? I have hardened steel rollers that run up and down on a ramp along with spring pressure. Alternatively, if you are familiar with snowmobiles, the rollers run on the helix on the secondary clutch.
1021When we do cardonitriding or casehardening operation for a plain carbon steel the case depth, hardness & microstructure are not alike why and define what are the basic thing, which makes such a difference.
1037Define what is special about the properties of chromium molybdenum steels that make them ideal for pressure vessels?
1031Does 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.
1319
What is the hottest part of flame in fire?
what is the difference between stainless steel and alloy steel?
How to calculate heat affected zone in weld?
What does allotropic mean?
For define what reason would an aluminum casting, when applied with a powder coated paint finish, cause a poor finish to the paintwork.
How much gold concentration should be in the organic phase (dbc) before reduction by oxalic acid solution? Is it effective on purity of gold in reduction step? Define what is the ratio of dbc to oxalic acid solution in this step?
What are the allotropes of iron and carbon?
Why is chromium molybdenum steels used to build pressure vessels? What is special about the properties of chromium molybdenum steels that make them ideal forpressure vessels?
What is the composition of d2?
Why is chromium molybdenum steels used to build pressure vessels? Define what is special about the properties of chromium molybdenum steels that make them ideal for pressure vessels?
acetylene is stored in ?
Why cutting fluid is used in machining?
Which is the only liquid in which gold is dissolved?
What is hot working of metals? Give some of its principal methods.
Which type of welding is used for welding of duplex and super duplex steel?
