In the low pressure die casting (LPDC) process, a liquefied natural gas (LNG) burner is used to raise and maintain the temperature of the die. However, it became clear that this method loses great amounts of energy.
Electric heater preheating uses a closed thermal insulation system to maintain the heat of the die in a completely closed state, preventing heat dissipation. Additionally, the upper die heater prevents heat dissipation through a combination of insulation board and the heater, promoting a better increase in temperature. For the lower die heater, to improve thermal conductivity, we made a compact heater in the shape of the die and a heater in the shape of the gate. At the prototype stage, these parts were made by hand.
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