1.

In hot box process, core box is heated up to what temperature?(a) 220°F – 300°F(b) 250°F – 320°F(c) 350°F – 500°F(d) 420°F – 550°FThe question was asked in an interview for internship.My question is taken from Types of Cores in portion Core and Core Making of Casting-Forming-Welding I

Answer»

Right choice is (c) 350°F – 500°F

To explain: In the hot box process, core box is known to be made up of cast irons or STEELS or aluminium METAL. It is heated in between the TEMPERATURE RANGE of 350°F – 500°F.



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