Self-cooling forming steel mold for casting steel ingot

Abstract

Disclosed are self-cooled moulding steel moulds for casting steel ingots. Interlayer mould walls are employed; inner walls of inner layer mould walls (N) are high temperature resistant casting mould chambers (M); outer layer mould walls (Y) are provided with upper pipe orifices (G1) and lower pipe orifices (G2); the upper pipe orifices (G1) and the lower pipe orifices (G2) are connected with infusion pipes (L); sealing is performed between the inner layer mould walls (N) and the outer layer mould walls (Y) to form into cooling cabins (Q); and moulding steel moulds (3) are matched with steel mould bases (2), a casting base layer (1) and a casting machine (5) to use. Heated cooling fluid (S) is input into the cooling cabins (Q) before casting; liquid steel is injected into the casting machine (5) through a casting ladle (7), passes through a casting channel (U) of the casting base layer (1) and enters into the moulding steel moulds (3) through channel openings (H) and base sprues (T) of the steel mould bases (2); the liquid steel is cooled to 80 to 90 DEG C in the moulding steel moulds (3); the cooling fluid (S) is stopped inputting; the cooling fluid (S) in the cooling cabins (Q) is discharged; and a crane lifts the moulding steel moulds (3) away to deal with cast steel ingots. According to the self-cooled moulding steel moulds for casting the steel ingots, the cast steel ingots are good in quality and high in efficiency, the defective rate is decreased from 5 to 0.2% and the service life of moulds is extended by 10 times.

Description

technical field [0001] The present invention relates to a metal casting device, in particular to a steel mold for casting. Background technique [0002] Metal casting is one of the important basic technologies of machinery manufacturing. At present, casting molds made of solid cast iron are mostly used in domestic ingot forming casting, which are heavy in weight, thick in mold walls and high in cost. The mold weight for casting 1 ton of steel ingots is 1.5 tons, which is time-consuming and laborious for hoisting and pouring. The cast iron mold needs to be preheated before pouring. , After pouring, the mold must be naturally cooled for more than three hours before the next round of pouring can be used. The effective use of a set of molds is only about 80 times. The mold life is short, the scrap is fast, and the loss of manpower and material resources is large. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a mold for casting steel ing...

AI Technical Summary

Problems solved by technology

At present, domestic steel ingot molding casting mostly uses casting molds made of solid cast iron, which are heavy in weight, thick in mold walls, and high in cost. The mold for casting 1 ton of steel ingots weighs 1.5 tons. It is time-consuming and laborious to hoist and pour. After pouring, the mold must be naturally cooled for more than three hours before it can be used for the next round of pouring. The effective use of a set of molds is only about 80 times

The mold life is short, scrapped quickly, and the loss of manpower and material resources is large

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