Magnesium alloy has a lower density, generates less heat, and exhibits lower surface tension, better fluidity, and less latent heat release during crystallization compared to aluminum alloy. These properties make it prone to defects like cold shuts and difficulty in molding. Therefore, unlike traditional aluminum alloy die casting—which prioritizes lubrication and basic demolding—magnesium alloy release agents focus primarily on heat retention: their low thermal conductivity better promotes magnesium melt fluidity, maintains casting temperature, improves filling, and enhances surface finish and part density.
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