Filtering tool for low-pressure casting

Abstract

The invention provides a filtering tool for low-pressure casting. The filtering tool comprises an iron wire net and a net cone main body, and is characterized in that the iron wire net is arranged outside the net cone main body and attracted to a narrow end face of the net cone main body by a high-temperature magnet, and a bolt is connected with an external drive device through a mounting connecting hole. The filtering tool is simple in structure, reasonable in design and convenient and easy to operate, the iron wire net is pressed into an external gate by arranging the net cone main body witha magnetic mounting hole, the high-temperature magnet, the iron wire net and the matching bolt, oxidized slag inclusions, oxide skin and refractory materials in a holding furnace are prevented from entering into a casting, meanwhile the high-temperature magnet is matched with the net cone main body to effectively attract and take away broken iron wires on an iron filter net, the phenomenon that the broken iron wires on the iron filter net enter into the casting and causes the slag inclusions of the casting is avoided, and thus the quality of the casting is improved.

Description

technical field [0001] The invention relates to the technical field of casting auxiliary equipment, in particular to a filtering tool for low-pressure casting. Background technique [0002] Low-pressure casting is a method in which liquid metal fills a cavity under pressure to form a casting. Because of the low pressure used, it is called low-pressure casting. Low-pressure casting generally requires a filter to prevent the oxidation slag, scale, and refractory materials in the holding furnace from entering the casting. At this stage, iron filters are usually used. Although iron filters prevent oxidation in the holding furnace Slag inclusions, oxide scales, refractory materials, etc. enter the castings, but the broken iron wires on the iron filter screen will enter the castings, causing slag inclusions in the castings, which in turn affects the quality of the castings. Therefore, there is an urgent need for a filter for low-pressure casting. tooling. Contents of the inven...

AI Technical Summary

Problems solved by technology

Low-pressure casting generally requires a filter to prevent the oxidation slag, scale, and refractory materials in the holding furnace from entering the casting. At this stage, iron filters are usually used. Although iron filters prevent oxidation in the holding furnace Slag inclusions, oxide scales, refractory materials, etc. enter the castings, but the broken iron wires on the iron filter screen will enter the castings, causing slag inclusions in the castings, which in turn affects the quality of the castings. Therefore, there is an urgent need for a filter for low-pressure casting. tooling

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