Which of the following materials are commonly used as flux in the casting process to prevent oxidation?
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Degassing process during the formation of castings can prevent inclusion of hydrogen absolutely.
What should be the melting point (in ?C) of flux used for mixing with aluminium casting?
The fluxes used in the casting process must have low vapour pressure.
Which of the following devices is mainly used for thermal analysis of flux?
What is the water content in light to medium size malleable iron castings?
Refractory materials are basically used for strengthening the casting materials used in the casting process.
Refractories are generally inorganic non-metallic materials which can resist very high temperature.
Silicon carbide is widely used as refractory material in the mould making for casting processes.
Refractoriness of a material should always be greater than its application temperatures.
What is the amount of green permeability in light to medium size malleable iron castings?
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