What is tack welding ?

0 Answers   Essar,

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What happens to the microstructure during service exposure?

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

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

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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? Whatis the ratio of dbc to oxalic acid solution in this step?

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Why same casting has different hardness and machineability properties? One spot it is found hard for machining and another spot soft? It is FG 260 grade for Cast Iron.

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how can i prevent the backfire occurrence in copper shaft furnaces?

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Explain dislocation theory?

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When austenitized, carbon steel is quenched, why is the bcc crystal elongated into a body-centered tetragonal crystal structure?

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i need manual solution of diffusion in solid(shewmon) if you have plz send for me. tank you my email : alloymail@gmail.com

1 Answers  

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What is iron ferrite?

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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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