Green sand mold for most ancient casting formation method, uses the green sand mold formation magnesium alloy casting, can save the cost and produce the big casting. The magnesium alloy is the flammable metal, Magnesium alloy fluid casting to green sand mold, easily has the chemical reaction with the moisture, therefore must increase inhibitor for protects the casting outward appearance and the production magnesium alloy security problem in the green sand mold. This study discussed the different inhibitor concentration and the moisture content to the magnesium alloy casting surface influence. The result showed that pores at casting surface increases with the moisture of green sand mold. It is also shown that the inhibitor has a beneficial effect on surface quality of the magnesium alloy castings.
Magnesium alloy Green sand mold Inhibitor