Method for producing high-quality forged material by using large-scale vertical type continuous casting round billet, product and application thereof

Abstract

The invention provides a method for producing a high-quality forged material by using a large-scale vertical type continuous casting round billet. The method comprises the following steps of: preparation of billet materials, a hot feeding procedure, a heating procedure, a forging procedure, an annealing procedure, a rectifying procedure and inspection of finished products, wherein the vertical type continuous casting round billet is used in the preparation of the billet materials, and a round forging billet is subjected to hot feeding and forging after continuous casting. By using the method, the conventional mature and new technology which improves the quality of forged materials is used, and the round-section forged materials, of which the diameter is between phi250 and phi1000mm and the length is less than or equal to 12000mm can be produced. Compared with the prior art, the method has the following beneficial effects that the high-quality forged materials of multiple alloy steel can be produced, and the quality is far superior than that of the forging materials produced by die casting, so that the forged materials can be directly used as high-quality steel materials, and also can be used as high-quality billet materials in the downstream pressure machining procedure; and therefore, the large-scale and the half-continuity of the round section forging materials with large diameter and large length are realized, the production rate and the yield are improved, the energy consumption is reduced, and the environment protection is facilitated.

Description

technical field [0001] The invention belongs to the field of metal thermal processing, and in particular relates to a method, a product and an application thereof for producing high-quality forging materials by using a large vertical continuous casting round billet. Background technique [0002] Since the 1960s, in the field of iron and steel smelting, in addition to still relying on blast furnaces to smelt molten iron, many new technologies have gradually matured, including: EBT (Eceenntric Bottom Tapping) - which can be realized when tapping Eccentric bottom tapping electric arc furnace smelting process for slag-iron separation; LF-ladle refining furnace (Ladle Refining Furnace) refining process; and VD (Vacuum Degas sing)-vacuum degassing process. In addition, electroslag smelting has gradually developed into a cross-industry technology. Using its basic principles, the electroslag feeding process for ingot casting has been successfully studied. [0003] On the other hand...

AI Technical Summary

Problems solved by technology

According to the above description, it can be seen that whether it is the outdated and backward technology of using the die-casting steel ingot in the prior art for preliminary rolling and finishing rolling, or using arc-shaped continuous casting to cut out a round billet according to a fixed length, and then forging technology, it is impossible to solve this technical problem

However, the technology of using vertical continuous casting to produce large-diameter and large-length round billets, and then producing large-diameter and super-long high-quality steel products by forging has not been successfully reported so far.

Images