Engine block mold

Abstract

The invention discloses an engine cylinder block casting mould comprising a sand mould, a water pump sand core, a window sand core, a front end sand core and a water sleeve sand core, wherein the sand mould is provided with an inner cavity; the water pump sand core, the window sand core, the front end sand core and the water sleeve sand core are located in the inner cavity; the water pump sand core, the window sand core, the front end sand core and the water sleeve sand core are provided with air exhausting holes; a process gap is reserved between the water pump sand core and the window sand core; and a gasket is arranged inside the process gap. According to the engine cylinder block casting mould disclosed by the invention, a polycrystalline mullite gasket with high-temperature resistance and good ventilation is additionally arranged in the process gap between the water pump sand core and the window sand core so that molten iron is prevented from entering the air exhausting holes in the water pump sand core and the window sand core from the process gap; and therefore, the production of waste castings is reduced and the difficulty which is not solved by workers in the industry is solved.

Description

technical field [0001] The invention relates to the field of casting, in particular to an engine cylinder casting mold. Background technique [0002] In the casting mold of the engine block, because the process gap between the water pump sand core and the window sand core is too large, the molten iron enters the vent holes of the water pump sand core and the window sand core along the process gap during pouring, resulting in a large number of waste castings. This technical problem has puzzled technicians in the industry for a long time, and there has been no effective way to solve it. Contents of the invention [0003] The purpose of the present invention is to provide a simple in structure in order to overcome above-mentioned deficiency, can prevent molten iron from entering the engine block casting mold of water pump sand core and window sand core exhaust hole. [0004] The invention comprises a sand mold provided with an inner cavity and a water pump sand core, a windo...

AI Technical Summary

Problems solved by technology

[0002] In the casting mold of the engine block, because the process gap between the water pump sand core and the window sand core is too large, the molten iron enters the vent hole of the water pump sand core and the window sand core along the process gap during pouring, resulting in a large number of waste castings

This technical problem has plagued technicians in this industry for a long time, and there has been no effective way to solve it.

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