Shell mold molding system using artificial sand and shell sand used in the system.

摘要

PROBLEM TO BE SOLVED: To provide a shell mold casting system which does not purchase shell mold sand on the market but forms shell mold sand at site, and also separates and reuses the sand by a method for reducing CO2 after pouring molten metal.;SOLUTION: In the shell mold casting system using artificial sand, shell sand is obtained by kneading artificial sand, a powder resin and kerosene; the shell collection sand is ground by the dry friction system, and is used for the step of obtaining shell sand for the next work. The amount of the powder resin to be kneaded with artificial sand is 2-4% to artificial sand of 100%. The amount of kerosene is 0.1-0.2%. The amount of the reclaimed artificial sand for circulation use is 97-99%, and fresh artificial sand of 1-3% is added thereto.;COPYRIGHT: (C)2012,JPO&INPIT