We make aluminum moulds by press casting, can u suggest any thing so that the moulds should shine after casting?

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How would a salt and water solution clean a penny but a vinegar and salt solution will not clean a penny?

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Explain stress corrosion cracking?

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what is the chemical composition of ceramic and define what is its atomic density?

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

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Why do some of the latest 'single crystal' superalloys contain concentrations of the grain boundary strengthening elements, e.g. carbon and boron?

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What is heat treatment?

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Can 1026 steel be welded?

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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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what are the causes of delayed fracture in case hardened steels?

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What are the superalloys used for?

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Please send the Sundar TVS Motors placement papers to this mail id.

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