Gating system sprue combined device for full mold casting and using method of gating system sprue combined device

Abstract

The invention discloses a gating system sprue combined device for full mold casting and a using method of the gating system sprue combined device, belongs to the field of casting, particularly relatesto a gating system sprue combined device used in lost foam full mold casting and a using method of the gating system sprue combined device, and comprise a sprue, a sprue seat, a base body, a buffer bulge, a coating layer and a corresponding using method. According to the device and the method, it can be guaranteed that a gap in the joint of the sprue and the sprue seat can be covered with the coating, and workers can use the device more conveniently and rapidly; in terms of quality, the defect of sand washing below the sprue in the pouring process is reduced; in terms of cost, extra electricenergy consumed for smelting of impurities when the sprue is used as foundry returns for smelting in the later period is reduced; and in terms of operation, due to the fact that the device is easy tooperate, the production efficiency of modeling workers is greatly improved.

Description

technical field [0001] The invention belongs to the field of casting, and in particular relates to a gating system sprue combination device used in lost foam solid mold casting and a method for using the same. Background technique [0002] Full mold casting refers to the use of polystyrene foamed plastic patterns to replace ordinary patterns. After the mold is made, it is poured into molten metal without taking out the pattern. Under the action of molten metal, the plastic pattern burns, gasifies, and disappears, and the molten metal replaces the original shape. The space occupied by the plastic mold, the casting method to obtain the required casting after cooling and solidification. [0003] In the production process of solid mold casting, the gating system needs to be designed to introduce liquid metal into the mold cavity. Now the sprue is generally used in the process of placing the sprue vertically in the sand box, and placing the polystyrene foam block At the top of t...

AI Technical Summary

Problems solved by technology

During the pouring process, the sprue impacts downward due to gravity, and the sand under the sprue is easily washed into the mold from the joint between the sprue and the polystyrene foam, resulting in sand washing defects on the bottom surface of the casting, and causing There is molding sand inside the solidified sprue, which increases the energy consumption when the sprue is used as a return material for smelting in the later stage, and the operation process is also relatively cumbersome

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