Define what is widman statten structure?

0 Answers  

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Which type of key is used between shaft and pulley?

0 Answers   NIC,

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Why are the superalloys sometimes subjected to secondary melting processes?

1 Answers  

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What affect would increasing the charpy impact toughness on an object have on the surface of an object it strikes if all else remains the same? Would it cause moredamage to the object it strikes?

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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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white rust formation over zinc plated and passivated fasteners during CED coating. WHY?

1 Answers   Wheels India,

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Why post-heating is done in alloy steel welding?

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What is iron ferite?

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HOW ARC PRODUCE IN ELECTRIC ARC FURNACE

3 Answers  

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What type of grinding is used for harder materials?

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?

0 Answers  

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what are the ores of copper?

4 Answers  

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