Hubbed flange production process capable of improving production efficiency

A technology of production efficiency and production process, applied in the field of neck flange production process, can solve the problems of inconvenient process operation, low production efficiency, manual operation, etc., to simplify the process, improve production efficiency, and realize the effect of automatic production

Active Publication Date: 2020-04-10
章丘市普锐锻压有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Hubbed flange production process capable of improving production efficiency
  • Hubbed flange production process capable of improving production efficiency
  • Hubbed flange production process capable of improving production efficiency

Examples

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Comparison scheme
Effect test

Embodiment

[0036] Embodiment: a kind of neck flange production technology that improves production efficiency, as figure 1 shown, including the following steps:

[0037] Step S1: cutting, cutting the round steel with a band sawing machine, and cutting the round steel into a plurality of blanks. The weight of each billet is 1.05 to 1.10 times the weight of the qualified stiffened flange. Through the relationship formula between density and mass, the billet with the required mass can be cut according to the volume.

[0038] Step S2: heating, placing the billet in a natural gas furnace for heating, the temperature of the natural gas heating furnace is 1180°C to 1220°C, so that the temperature of the billet is higher than the recrystallization temperature and lower than the solidus temperature.

[0039] Step S3: free forging, using a press to upset the heated billet. Use a press to apply pressure parallel to its axial direction to the blank to make its diameter larger and its axial length...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 李松柏中
Owner 章丘市普锐锻压有限公司
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