Sprue basin and manufacturing and using method

Abstract

The invention relates to a sprue basin. The sprue basin comprises a sprue basin sand box, a sprue basin sand mold and an inflow plugging piece, wherein the sprue basin sand mold is arranged in the sprue basin sand box, the sprue basin sand mold is a hollow groove body, a liquid containing chamber is formed in the sprue basin sand mold, a pouring gate connecting port is formed in the lower portion of the sprue basin sand mold, the pouring gate connecting port communicates with a straight pouring gate of a pouring system, the inflow plugging piece is arranged in the pouring gate connecting port and plugs the straight pouring gate, and under the condition that pouring liquid enters the liquid containing chamber, the pouring liquid fuses the inflow plugging piece, so that the pouring gate connecting port communicates with the straight pouring gate. According to the sprue basin, the melting inflow time is effectively controlled through the inflow plugging pieces with different sizes, automatic fusing is carried out at the specified time, the effect of the sprue basin is fully exerted, and the defects of timed pouring, slag inclusion reduction, air entrapment, cold shut and the like are overcome; and the sprue basin is simple to operate, flexible and reliable, and low in manufacturing cost, the efficiency is effectively improved, and the quality is guaranteed.

Description

technical field [0001] The invention relates to a sprue basin, in particular to a sprue basin with an inlet blocked. Background technique [0002] Casting refers to the processing method of melting solid metal into liquid and pouring it into a mold of a specific shape, and waiting for it to solidify and form, in order to obtain the structural shape of the part. The sprue basin is connected to the top of the sprue, and is used to receive and introduce molten metal into the container, so that the molten metal reaches a suitable pouring speed before flowing into the sprue. The sprue basin is the throat part of the entire pouring process, and its quality has an important impact on the quality of the casting. A good sprue basin should play the following roles: On the one hand, it can smoothly receive the molten iron from the ladle; on the other hand, it can accommodate a certain amount of molten iron so that the molten iron entering the sprue does not stop flowing; on the other ...

AI Technical Summary

Problems solved by technology

[0003] During the pouring process, when the first molten iron in the ladle enters the sprue basin, the temperature of the molten iron will drop rapidly and come into contact with the sprue basin, which will have a cleaning effect on the sprue basin, and will easily form a large amount of cold molten iron and dirty molten iron , if this part of molten iron enters the cavity first, it will cause serious defects such as cold shut and slag inclusion

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