Spliced random sand box and splicing method of random sand box

Abstract

The invention relates to a spliced random sand box and a splicing method of the random sand box in the technical field of casting. The spliced random sand box comprises a plurality of layers of stacked commonly-used sand boxes, wherein a plurality of sand partition plates and a plurality of supporting plates for supporting the sand partition plates and the commonly-used sand boxes are spliced in the commonly-used sand boxes; the sand partition plates are spliced and superposed in the commonly-used sand boxes to form the continuous inner walls of the random sand box. According to the random sand box, under the condition that the commonly-used sand boxes are used, appropriate partition areas can be arranged in the commonly-used sand boxes through the sand partition plates and bottom layer sand partition plates according to the shape and the size of a casting, the sand consumption in the molding process of quick sand is reduced, the sand metal ratio in the casting is reduced, the production cost is reduced, the press box cooling time of the casting is shortened, and the production period is shortened; moreover, after being spliced once, the random sand box for the same casting product can be reused, so that the batch production efficiency is improved, and the random sand box has an important significance on reduction of the casting cost and improvement of the productivity in the production of large castings.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to an assembled molding-type flask used for reducing the amount of sand used in castings in the molding or core-making process and a method for assembling the molding-type flask. Background technique [0002] Large-scale rotary and large-scale castings have various shapes, but for a long time, due to the restriction of the production quantity and the production cost of special flasks, the casting production process of such castings has widely used several layers of stacked general-purpose flasks. When using a general-purpose sandbox, since the shape and size of each part of the casting are different from the size of the general-purpose sandbox, when the casting is placed in the sandbox and filled with sand, the small-sized parts correspond to a larger amount of sand in the general-purpose sandbox, and the local sandfill The amount of sand is larger, and the waste of sand around and...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems of large sand-iron ratio, high production cost, long quicksand molding time and slow cooling speed when using a general-purpose sand box for casti

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