Structure characteristics and technology of house of electric distribution device in die casting was analyzed.A available design sketch of die casting die by verification in practice was introduced based on the part structure.By using taken-out device to draw core and recycling water-cooling system in die design

the long-distance drawn-core for internal hole was resolved

and the defects of gas-hole and porosity in castings resulting from uneven castings thickness and superheat in formed parts as well as difficult exhaust were effectively overcome

which has the important role for improving the quality of the die castings.