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It is not possible to bake dry sand cores by dielectric core bakers.(a) True(b) FalseThis question was posed to me in a national level competition.The query is from Dielectric Core Bakers topic in section Core and Core Making of Casting-Forming-Welding I

Answer»

The correct answer is (b) False

The explanation is: Dry sand cores are basically produced by HEATING the green sand cores nearly about 110 ⁰C. These cores have high strength rigidity and excellent thermal STABILITY. These cores can be easily baked by dielectric CORE bakers and NORMALLY stored for a long period of TIME to make them more stable than the green sand cores. Dry sand cores generally used for large castings production.



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