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Forging method for unloading and temporary storage device-end flange

A flange and forging technology is applied in the field of fuel loading and unloading equipment, which can solve the problems of many forging processes, high manufacturing costs, and many times of fire, and achieve the effect of simple process, less times of fire, and avoiding the concave center of forgings.

Inactive Publication Date: 2016-04-06
JIANGSU RUNYANG FITTING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the large diameter and thin thickness of the workpiece, in order to make the forging firm, most forging factories generally adopt the scheme of three times of upsetting + two times of elongation, so that the forging ratio is greater than 3. Although this scheme can be successfully forged, but due to There are many forging processes and multiple fires, resulting in high manufacturing costs

Method used

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  • Forging method for unloading and temporary storage device-end flange
  • Forging method for unloading and temporary storage device-end flange
  • Forging method for unloading and temporary storage device-end flange

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Embodiment Construction

[0013] Such as figure 1 , 2 , 3, a kind of forging method of unloading temporary storage device-end flange, the specific steps are as follows: a. The upsetting round cake or steel ingot with smaller thickness and diameter-to-height ratio greater than 2.5 is sawed and cut into blank according to metal The fiber direction is parallel to the upper and lower wide flat anvils on the press; b. The flat anvil is in contact with the billet as a whole and drawn out, just like the upsetting operation, the steel billet is drawn from the initial thickness of 390mm to 1360mm long; c. The billet is returned to the furnace for heating, and upsetting to the size of the forging after being released from the furnace.

[0014] When the flat anvil is in contact with the blank as a whole, it is the same as the upsetting operation, and the deformation speed of the forging and the deformation of the first anvil are increased. Upsetting means that after the blank is heated, the axis of the blank is ...

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Abstract

The invention relates to the technical field of fuel loading and unloading devices, in particular to a forging method for an unloading and temporary storage device-end flange. The forging method for the end flange specifically comprises the following steps that a, an upsetting round cake with the small thickness and the diameter height ratio being larger than 2.5 or a steel ingot with the small thickness and the diameter height ratio being larger than 2.5 is sawn into blanks arranged parallel to an upper wide flat platen and a lower wide flat platen which are arranged on a pressing machine in the metal fiber direction; b, the flat platen makes contact with the blanks entirely and the blanks are drawn out, like upsetting operating, and the steel ingot is drawn out to 1360 mm from initial 390 mm; and c, the drawn out steel ingot is put into a furnace again and heated, after being taken out of the furnace, the steel ingot is upset to the size of a forge piece. The improved forging method is simple in process and small in heating number, the manufacturing cost is reduced, the center of the forge piece is prevented from being sunken, and the forge piece can be forged sufficiently and solidly.

Description

technical field [0001] The invention relates to the technical field of fuel loading and unloading equipment, in particular to a forging method of an end flange of an unloading temporary storage device. Background technique [0002] The fuel loading and unloading system is one of the core systems of the high-temperature gas-cooled reactor independently developed for the first time in China, in which the unloading temporary storage device-end flange is a key part. Due to the large diameter and thin thickness of the workpiece, in order to make the forging firm, most forging factories generally adopt the scheme of three times of upsetting + two times of elongation, so that the forging ratio is greater than 3. Although this scheme can be successfully forged, but due to There are many forging processes and multiple fires, resulting in high manufacturing costs. Contents of the invention [0003] In order to overcome the existing above-mentioned deficiencies, the present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/16
Inventor 杨献元
Owner JIANGSU RUNYANG FITTING
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