Novel steel ingot riser, steel ingot mold and pouring method utilizing steel ingot mold

Abstract

The invention discloses a novel steel ingot riser, a steel ingot mold and a pouring method utilizing the steel ingot mold and belongs to the field of steel ingot pouring. The steel ingot riser comprises a vertical cylinder portion at the upper end and a smooth transition portion at the lower end, wherein the smooth transition portion extends outwards. A cylinder space is arranged in the center of the vertical cylinder portion. The interior and the exterior of the smooth transition portion are each of a cone-shaped skirt-like structure with ridges. The steel ingot mold comprises the steel ingot riser. An ingot body is arranged at the lower end of the riser. Flanges are arranged outside the ingot body. The flanges outside the ingot body correspond to the ridges of the smooth transition portion of the riser. The pouring method utilizing the steel ingot mold comprises the following steps that 1), the height of a heat insulating plate in the riser is determined, and the heat insulating plate is hung on the vertical portion of the riser in an inserted manner; 2), the ingot body and the riser are aligned and closed, and placed into a vacuum chamber as a whole; 3), vacuum pouring is carried out, pouring is conducted up to the marked pouring height of the riser, and pouring is stopped; and 4), the steel ingot is taken off, and transferred to a heat treatment furnace to be subjected to annealing and slow cooling treatment. According to the method, the steel ingot utilization rate is increased, and the opening ring shake phenomenon is reduced.

Description

technical field [0001] The invention relates to the field of steel ingot pouring, in particular to a steel ingot riser, a steel ingot mold and a casting method thereof. Background technique [0002] The current vacuum steel ingot production uses a split conical riser for production, and the ingot body is ribbed and the riser is round. If the ingot shape needs to be adjusted, it can only be realized by making different tooling tools, resulting in a large amount of tool inventory At the same time, due to the high production cost of general ingot molds, enterprises only keep some commonly used ingot body tools, which is not conducive to improving the utilization rate of steel ingots. The box is biased, which leads to the ring cracking problem of the steel ingot, which is not conducive to the subsequent forging production. Based on the need to improve the utilization rate of steel ingots and reduce ring cracks in unpacking, a new type of VC steel ingot riser design drawing was ...

AI Technical Summary

Problems solved by technology

[0002] The current vacuum steel ingot production uses a split conical riser for production, and the ingot body is ribbed and the riser is round. If the ingot shape needs to be adjusted, it can only be realized by making different tooling tools, resulting in a large amount of tool inventory. At the same time, due to the high production cost of the general ingot mold, the enterprise only keeps some commonly used ingot body tools, which is not conducive to improving the utilization rate of the steel ingot. The box is biased, resulting in cracking of the steel ingot out of the box, which is not conducive to subsequent forging production

Images