How much gold concentration should be in the organic phase (dbc) before reduction by oxalic acid solution?

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Why same casting has different hardness and machine-ability properties?

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What is the composition of cast grade iron 35?

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What is the specific speed of a pump ?

0 Answers   NIC,

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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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Define 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 turbine blades etc. When both are used in the lost-wax method?

0 Answers  

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What is the function of washer?

0 Answers   NIC,

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What are the materials used to manufacture Aeroplane Wings?

0 Answers   NIC,

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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? What is the cause of this?

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Define what is the metallurgy use? Define what is the casting and forging?

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What are the compositions of brass, how can this metal be heat-treated, what is the melting point of this metal?

0 Answers  

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what are the ores of copper?

4 Answers  

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