The invention relates to a box type sand core type pouring
system which comprises a sand box, a pouring
system and a sand core box, and the pouring
system comprises a first mold, a plurality of second molds, a cavity and a
sprue; after sand is put into the sand core box to be solidified, the sand box is opened, and the first mold and the second mold are pulled out, so that channels, left on the sand box and the sand core box, of the first mold and the second mold form a transverse pouring gate and an inner pouring gate respectively; enabling the molten iron to sequentially pass through a straight pouring gate, an inner pouring gate and a transverse pouring gate to enter a cavity, and completing the molding of a
casting; by optimizing the design of the pouring channel, uniform distribution of
molten metal is achieved, the defects, such as air holes and
shrinkage porosity, in a
casting are reduced, and the overall quality of the
casting is improved. By optimizing the design of the pouring channel, the
hardness deviation of the plate surface is obviously reduced to be at least HB10, the sand inclusion and falling defects of the plate surface are eliminated, the use of
consumables such as a
ceramic tube, a rubber bottom and tube sticking glue is reduced, the production cost is greatly reduced, and the production efficiency is improved.