What are the die casting machine metal type preheating methods?
Metal type preheating methods are:
(1) Preheating with a torch or gas flame;
(2) using an electric resistance heater;
(3) using an oven heating, the advantage is that the temperature is uniform, but only for small metal parts;
(4) first place the metal type Bake on the oven and then pour the liquid metal to heat the metal. This method is only suitable for small molds because it wastes some molten metal and also reduces the life of the mold.
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