Aqueous releasing agent is extensively used in the die casting because of its series of advantages. Based on the selection of raw materials

through optimizing the composition proportion

the optimized proportion of aqueous releasing agent is composed of 25%machie oil

12.5% lipid

3.3% lanolin

1.6% span 80

3.2% OP-10

0.2% xanthan gum

0.3% antiseptic

0.3% antioxidant

0.3% defoamer and 53.4% water. The releasing agent prepared by phase conversion emulsion method exhibits a better stability

and high temperature wettability and film properties. The practical application shows that the releasing agent exhibits a preferable releasing ability with being diluted as 1∶90 ratio

which is equivalent to an abroad releasing agent in comprehensive properties

however

showing the better glossiness. Meanwhile

the releasing agent has the lower cost than that of two kinds of abroad ones

decreased by 40%

5

0%.