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We make aluminum moulds by press casting, can you suggest any thing so that the moulds should shine after casting?
1062How is solution annealing carried out? What type of furnace is required? Does one need to be heat in a salt bath?
896What 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?
1047When using mercury to recover very, fine gold from ore, what is the best way to separate the gold laden mercury from the ore?
1005What 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?
991What are the compositions of brass, how can this metal be heat-treated, what is the melting point of this metal?
1053How much gold concentration should be in the organic phase (dbc) before reduction by oxalic acid solution?
1044A plain carbon steel contains 45 wt% of proeutectoid ferrite. What is its average carbon content in weight percent? I know that you need to use a tie line in the phasediagram, but my book does not really give a good example to go by?
1202For what reason would an aluminum casting, when applied with a powder coated paint finish, cause a poor finish to the paintwork.
997When we do cardonitriding or casehardening operation for a plain carbon steel the case depth, hardness & microstructure are not alike why and what are the basicthing, which makes such a difference.
1009How 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?
1103
What is the use of piezometer
What is the Equivalent for 9.81 kgf= ?
Which plaster is used in gold investment casting?
Explain the concept of casting and forging?
Discuss the otto cycle with diagram.
What is hardest cutting tool material?
A plain carbon steel contains 45 wt% of proeutectoid ferrite. Define what is its average carbon content in weight percent? I know that you need to use a tie line in the phase diagram, but my book does not really give a good example to go by
In welding, arc is too long due to ?
What is the critical speed of shaft?
How is solution annealing carried out? Define what type of furnace is required? Does one need to be heat in a salt bath?
Discuss advantage of different types of screw.
What is iron ferrite and where is it found?
Where is iron ferite used?
The hardness of steel depends on
What is the difference between diagrams of it and ct in heat treatment of steels?
