Casting equipment and method for steel ingots for wide and thick plates

Abstract

The invention provides equipment and method for casting steel ingots applied to wide thick plates. The equipment for casting the steel ingots applied to the wide thick plates comprises a mold body for containing and solidifying the steel ingots. The mold body comprises a pouring chassis with a pouring gate and an enclosure wall vertically connected to the pouring chassis; a casting cavity with an upper opening is formed by sealing of the enclosure wall and the pouring chassis; the enclosure wall comprises two first vertical plates oppositely arranged at intervals and two second vertical plates oppositely arranged at intervals, and the first vertical plates and the second vertical plates are perpendicular to each other and are leaned against each other; the casting cavity takes the shape of a rectangular solid, and the length of the casting cavity is greater than or equal to the height of the casting cavity; and the length and width of the casting cavity are adjusted by changing the size of the cross section of the enclosure wall, and the height of the casting cavity is adjusted by changing the height of the enclosure wall. The equipment has the beneficial effects that the equipment is horizontal; the feeding distance of a feeder head is shortened; secondary shrinkage cavities are avoided; and the steel ingots of different sizes, specifications and piece weight can also be manufactured on the equipment.

Description

technical field [0001] The invention relates to the technical field of metallurgy and casting, in particular to a casting equipment for steel ingots for wide and thick plates and a corresponding casting method. Background technique [0002] In the prior art, the steel ingots used for rolling wide and thick plates mainly come from continuous casting slabs and cast steel ingots. According to the process regulations of longitudinal rolling extension and cross rolling widening, the height dimension of the steel ingot blank (the dimension perpendicular to the horizontal plane of the steel ingot blank) Greater than the length dimension (the longer side of the ingot blank section parallel to the horizontal plane), the casting method of this ingot is vertical, that is, the aspect ratio or aspect ratio is greater than 1. The specification range of wide and thick plates is as follows: the length size is 3 meters to 25 meters, the width size is 900 mm to 5300 mm, and the thickness rang...

AI Technical Summary

Problems solved by technology

Moreover, for large-tonnage steel ingots, due to the limitation of the width of the rolling mill or the width of the descaling box, the height of the steel ingot is often more than 3 meters, which results in a long feeding distance at the cap opening, resulting in a long feeding time

In order to improve the feeding effect of the cap mouth, it is usually required to have a large cap volume ratio. The increase of the cap volume ratio greatly reduces the metal yield when casting steel ingots. Formation of secondary shrinkage cavities, leading to the scrapping of steel ingots

Images