Glass bottle die casting piece manufacturing process cyclically using molding sand

Abstract

The invention discloses a glass bottle die casting piece manufacturing process cyclically using molding sand. According to the invention, a manufactured glass bottle die casting piece has an accurate size and no subcutaneous blowholes; sand discharging of castings is convenient after molding, used sand can be regenerated and reused and has a low breakage rate and small loss in the process of regeneration of the used sand, and the reuse rate of the used sand is high; the process produces little dust, little pollution and no phenol and formaldehyde.

Description

technical field [0001] The invention relates to a glass bottle mold casting manufacturing process with recyclable molding sand. Background technique [0002] The glass bottle mold is made of alloy cast iron, and the castings generally weigh about 30kg, and there are four pieces for one type. Sand molds are used in the manufacturing process of glass bottle mold castings. At present, the commonly used sand molds for glass bottle mold castings include clay sand, resin sand and water glass sand. Clay sand is used, and the casting is severely swelled after pouring, which not only wastes molten iron, but also increases the amount of subsequent machining. The use of resin sand will release irritating, toxic and harmful gases during pouring, which will cause pollution. After pouring, there will be a large number of subcutaneous pores in the casting, and the scrap rate will increase. Using sodium silicate sand, it is difficult to produce sand after pouring, and the old sand cannot ...

AI Technical Summary

Problems solved by technology

Clay sand is used, and the casting is seriously swelled after pouring, which not only wastes molten iron, but also increases the amount of subsequent machining

The use of resin sand will release irritating, toxic and harmful gases during pouring, which will cause pollution, and after pouring, there will be a large number of subcutaneous pores in the casting, and the scrap rate will increase.

Using sodium silicate sand, it is difficult to produce sand after pouring, and the old sand cannot be recycled, resulting in waste of sand resources

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