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Method for upsetting high-temperature alloy round ingot

A technology of superalloy and round ingot, which is applied in the field of hot working and forging of superalloy in metallurgical industry, can solve the problems of large energy consumption, large cross-sectional area difference, large temperature drop at both ends of alloy round ingot, etc., so as to improve the finished product. efficiency, improving the quality of forgings, and reducing energy consumption

Inactive Publication Date: 2010-01-27
江苏苏南特种金属保温锻造研发中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has the following disadvantages: it takes a lot of energy to heat the alloy ingot outside the furnace; The lateral deformation of both ends of the intermediate billet is relatively small, resulting in a large difference in cross-sectional area between the upset intermediate billet and the two ends of the round ingot, which limits the efficiency of upsetting round ingots with large height-to-diameter ratios

Method used

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  • Method for upsetting high-temperature alloy round ingot
  • Method for upsetting high-temperature alloy round ingot
  • Method for upsetting high-temperature alloy round ingot

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: Upsetting of GH80A alloy round ingot.

[0027] A) Alloy round ingot pre-processing, first cut the head and tail of the alloy round ingot with a diameter of 340mm and the brand name GH80A, and then use a lathe to flatten the two ends of the alloy round ingot, and make the car flat The end faces of both ends of the alloy round ingot are perpendicular to the axis of the alloy round ingot to ensure that the sagittal direction of the pressure is parallel to the axis of the alloy round ingot during upsetting, so as to avoid bending during upsetting, resulting in a diameter of 340mm and a length of 1265mm Alloy round ingot, measure and calculate the height-diameter ratio to be upset, that is, height-diameter ratio = 1265 / 340 = 3.72:1;

[0028] B) Covering the ceramic thermal insulation blanket 1, at first making or claiming to be prepared by figure 2 In the shown ceramic insulation blanket 1, the width of the ceramic insulation blanket 1 is 1 / 2 of the height of...

Embodiment 2

[0031] Embodiment 2: Upsetting of GH4169 alloy round ingot.

[0032] A) Alloy round ingot pre-processing, first cut the head and tail of the alloy round ingot with a diameter of 360mm and the brand name GH4169, and then use a lathe to flatten the two ends of the alloy round ingot, and make the car flat The end faces of both ends of the alloy round ingot are perpendicular to the axis of the alloy round ingot to ensure that the sagittal direction of the pressure is parallel to the axis of the alloy round ingot during upsetting, and an alloy round ingot with a diameter of 360 mm and a length of 1020 mm is obtained. The height-to-diameter ratio, that is, the height-to-diameter ratio=1020 / 360=2.83:1;

[0033] B) Covering the ceramic thermal insulation blanket 1, at first making or claiming to be prepared by figure 2 In the shown ceramic heat insulating blanket 1, the width of the ceramic heat insulating blanket 1 is 1 / 3 of the height of the alloy round ingot, namely 340 mm, and t...

Embodiment 3

[0036] Embodiment 3: Upsetting of GH4145 alloy round ingot.

[0037] A) Alloy round ingot pre-processing, first cut the head and tail of the alloy round ingot with a diameter of 460mm and the brand name GH4145, and then use a lathe to flatten the two ends of the alloy round ingot, and make the flat surface after turning The end faces of the two ends of the alloy round ingot are perpendicular to the axis of the alloy round ingot, ensuring that the sagittal direction of the pressure is parallel to the axis of the alloy round ingot during upsetting, and an alloy round ingot with a diameter of 460 mm and a length of 1160 mm is obtained. The height-to-diameter ratio, that is, the height-to-diameter ratio=1160 / 460=2.52:1;

[0038] B) Covering the ceramic thermal insulation blanket 1, at first making or claiming to be prepared by figure 2 In the ceramic heat insulating blanket 1 shown, the width of the ceramic heat insulating blanket 1 is 1 / 3 of the height of the alloy round ingot,...

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Abstract

The invention provides a method for upsetting a high-temperature alloy round ingot, belonging to the technical field of hot processing forging of high-temperature alloy in the metal industry. The method comprises the following steps that an alloy round ingot blank is preprocessed, before the blank is heated in a furnace, the alloy round ingot is subjected to top crops and end crops, so that end faces of two ends of the alloy round ingot blank which is subjected to top crops and end crops are flat to a degree vertical to the axial line of the alloy round ingot, thereby obtaining an alloy round ingot to be heated in the furnace; a ceramic insulation blanket is coated, the ceramic insulation blanket is coated in the middle of the alloy round ingot to be heated in the furnace so as to obtain a ceramic insulation blanket coated alloy round ingot to be heated in the furnace; the ingot is heated in the furnace, the ceramic insulation blanket coated alloy round ingot to be heated in the furnace is fed into the furnace for heating; the ingot is discharged from the furnace; the time from discharging to upsetting is controlled to obtain the alloy round ingot to be upset; the ingot is upset, the alloy round ingot to be upset is upset to obtain an upset intermediate blank. The method has the advantages of improving the yield and forging efficiency of alloy forging, improving the quality of a forge piece, and reducing energy consumption.

Description

technical field [0001] The invention belongs to the technical field of thermal processing and forging of high-temperature alloys in the metallurgical industry, and in particular relates to an upsetting method for high-temperature alloy round ingots. Background technique [0002] As known in the industry, upsetting is a process in which the height of an alloy ingot is reduced and the cross-section is increased by a forging press, and it is a common process in the metallurgical industry to deform metal materials. The forging of high-temperature alloy round ingot mainly includes two aspects, but not limited to: one is to upset the round ingot into a round cake by means of upsetting hot processing; The total deformation ratio (or called forging ratio) is used to combine the transverse deformation of the superalloy ingot with the longitudinal large deformation of the intermediate billet after upsetting to fully improve the anisotropy of the forged rod or forging product, and sign...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/08
Inventor 周奠华
Owner 江苏苏南特种金属保温锻造研发中心有限公司
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