What is the difference between plaster used in gold investment casting and ceramic used in the process of investment casting of automobile engine parts and turbineblades etc. When both are used in the lost-wax method?

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sir please send me previous question papers on metallurgy at vishal.nitrr07@gmail.com .....thank you

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How can you find out define what kind of stainless steel was used in making a stainless object?

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Which type of welding is used for welding of duplex and super duplex steel?

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How is solution annealing carried out? What type of furnace is required? Does one need to be heat in a salt bath?

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What is the metallurgical explanation of effects of chromium, nickel, molybdenum, and carbon in stainless steels?

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What is the function of washer?

0 Answers   NIC,

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

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

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what is the meaning(definition)of EN grade of steel and also tell whats the full name of EN?

15 Answers   Hitachi, Mecon,

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

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What happens to the microstructure during service exposure?

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