Hubbed flange production process capable of improving production efficiency

Abstract

The invention discloses a hubbed flange production process capable of improving production efficiency, and belongs to the technical field of flange production. According to the technical scheme, the hubbed flange production process is characterized by comprising the following steps that S1, cutting is conducted, specifically, a blank is cut from round steel; S2, heating is conducted, specifically,the blank is heated in a heating furnace to enable the temperature of the blank to be higher than a recrystallization temperature and lower than a temperature of a solidus; S3, free forging is conducted, specifically, the heated blank is upset through a press machine, and then the blank is punched through a punch; S4, ring rolling is conducted, specifically, the blank is installed on a ring rolling machine to be subjected to ring rolling, axial pressure is applied to the edge, close to an outer circle, of the end face side wall of the blank while ring rolling is conducted, and a flange neck is formed on the end face side wall of the blank; S5, annealing is conducted, specifically, the blank is placed in a resistance furnace to be annealed; and S6, turning is conducted, specifically, the flange is turned through a lathe. The hubbed flange production process has the effect of improving the production efficiency.

Description

technical field [0001] The invention relates to the technical field of flange production, more specifically, it relates to a neck flange production process for improving production efficiency. Background technique [0002] Ring rolling is the step of processing ring parts with a central hole in the forging process. It is a plastic processing process in which ring parts are continuously and locally plastically deformed by means of a ring rolling machine, and then the wall thickness is reduced, the diameter is enlarged, and the cross-sectional profile is formed. . In the process of flange processing, ring rolling operation is often used. [0003] At present, the invention patent with the publication number CN110343950A discloses a large-diameter titanium and zirconium high-neck flange forging process, which includes the following steps: Step 1: Add the raw materials in proportion to the melting furnace, Under certain conditions, the smelting time is 2-4 hours to obtain the a...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: first use free forging to form the flange neck, and then use the rolling ring to expand the hole and reshape, but the free forging needs to artificially place the cushion block when forging the flange neck on the edge of the flange, and then use the punch of the press to hit the pad to compress the edge of the flange. After repeating the above operations many times, the edge of the flange is compressed to form a flange neck, but The above operations require manual operations, resulting in inconvenient process operations and low production efficiency.

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