The invention provides a die-
casting mold releasing agent and a preparation method thereof. The die-
casting mold releasing agent is prepared from, by weight, 15%-18% of modified organic
silicone oil, 3.2%-4% of oxidized polyethlene
wax emulsion, 10%-12% of oleate
emulsion, 1%-2% of Turkey
red oil, 3%-5% of emulsifier and the
balance water. The preparation method comprises the steps that (1), the modified organic
silicone oil, the oxidized polyethlene
wax emulsion, the oleate emulsion, the Turkey
red oil, the emulsifier and the water are weighed according to the proportion for use; and (2), the modified organic
silicone oil and the emulsifier are mixed firstly and then put into a high-speed shearing
disperser, the
silicone oil is emulsified through a reverse emulsifying method at normal temperature to obtain a
silicone oil emulsion, then the oxidized polyethlene
wax emulsion, the oleate emulsion and the Turkey
red oil are added into the
silicone oil emulsion, all the materials are mixed to be uniform to obtain a mixed emulsion, and then the mixed emulsion is subjected to homogenization treatment through a
high pressure homogenizer, and therefore the die-
casting mold releasing agent can be obtained. The die-
casting mold releasing agent is good in high
temperature resistance, the spray quantity of the mold releasing agent is small, the die-casting circulating period is shortened, and the production efficiency is improved.