What is the hottest part of flame in fire?

0 Answers  

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what is the difference between EN19 & EN24 Grade?

3 Answers   SEIPL,

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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

0 Answers  

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what is the strongest metal?

0 Answers  

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When we do cardonitriding or casehardening operation for a plain carbon steel the case depth, hardness & microstructure are not alike why and what are the basicthing, which makes such a difference.

0 Answers  

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What are the materials used to manufacture Aeroplane Wings?

0 Answers   NIC,

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State some precautions to be taken in case of powder metallurgy?

0 Answers  

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full form of sn

6 Answers  

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carnot cycle has maximum efficiency for ?

0 Answers   NIC,

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difference between sand casting and shell casting

0 Answers  

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Explain some properties of manganese steel?

0 Answers  

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The requirement for ASTM A217 Gr. WC9 castings for valves components like Body and Bonnet were Normalising at 920+/- 20 Deg. C and Tempring 780+/- 20 Deg. C The specification calls furnace shall be calibtated within +/-14 deg. C The Heat Chart shows minimum temperature for normalising 900 to 920 Deg. C, but maximum temperature 960-990 Deg. C Tempering 780+/-20 Deg. C is within limits and accepted. Casting having integral test bars, heat trated along with castings passed in chemical znalysis and mechanical properties. Since normalising maximum temperature is not meeting specification, where castings can be salvaged or renormalised and retempered to meet specification. Whether it will have affect on remechanical properties testing

0 Answers   Leader Valves,

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