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A method for preparing ultra-fine grain gh4169 alloy rods from recycled materials

A GH4169, alloy bar technology, applied in metal processing equipment and other directions, can solve problems such as uncontrollable and unstable composition, and achieve the effect of improving accuracy, ensuring cleanliness and uniform cooling

Active Publication Date: 2021-11-02
AVIC SHANGDA METAL REGENERATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, domestically produced GH4169 alloys are all new materials with unstable and uncontrollable components.

Method used

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  • A method for preparing ultra-fine grain gh4169 alloy rods from recycled materials
  • A method for preparing ultra-fine grain gh4169 alloy rods from recycled materials
  • A method for preparing ultra-fine grain gh4169 alloy rods from recycled materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Alloy ingot ingot shape: Φ508mm, forging specification: Φ250mm, finished material specification: Φ230mm after lathe removal of black skin.

[0035] Recycled GH4169 alloy is ultrasonically cleaned, (1) frequency: 40-60kHz; (2) power density: 0.5-2W / cm 2 (3) Cleaning temperature: 30-40°C; (4) The cleaning liquid includes 12wt% sodium lauryl sulfate, 5wt% methyl amyl alcohol, 1.5wt% sulfuric acid, and the balance is water; 70wt% of GH4169 Alloy recycled materials. Firstly, the raw material is smelted by vacuum induction, then the raw material is remelted by electroslag in a protective atmosphere, and finally the raw material is smelted by vacuum self-consumption to obtain the finished product.

[0036]

[0037]

[0038] Heat the consumable ingot to 600°C and keep it warm for 2 hours;

[0039] After 9 hours, the consumable ingot is heated to 1000°C, and then kept for 2 hours;

[0040] After 4 hours, the consumable ingot is heated to 1160±10°C, and then kept for 25 ...

Embodiment 2

[0050] Alloy ingot shape: Φ508mm, forging specification: Φ260mm, finished material specification: Φ240mm after lathe removal of black skin.

[0051] Recycled GH4169 alloy is ultrasonically cleaned, (1) frequency: 40-60kHz; (2) power density: 0.5-2W / cm 2 ; (3) Cleaning temperature: 40-60°C; (4) The cleaning solution includes 12wt% sodium lauryl sulfate, 5wt% methyl amyl alcohol, 1.5wt% sulfuric acid, and the balance is water; 70wt% of GH4169 Alloy recycled materials. Firstly, the raw material is smelted by vacuum induction, then the raw material is remelted by electroslag in a protective atmosphere, and finally the raw material is smelted by vacuum self-consumption to obtain the finished product.

[0052]

[0053] Heat the consumable ingot to 600°C and keep it warm for 2 hours;

[0054] After 9 hours, the consumable ingot is heated to 1000°C, and then kept for 2 hours;

[0055] After 4 hours, the consumable ingot is heated to 1160±10°C, and then kept for 25 hours;

[005...

Embodiment 3

[0067] Alloy ingot shape: Φ508mm, forging specification: Φ250mm, finished material specification: Φ220mm after lathe removal of black skin. Recycled GH4169 alloy is ultrasonically cleaned, (1) frequency: 50-60kHz; (2) power density: 2-3W / cm 2 ; (3) Cleaning temperature: 30-50°C; (4) The cleaning solution includes 12wt% sodium lauryl sulfate, 5wt% methyl amyl alcohol, 1.5wt% sulfuric acid, and the balance is water; 70wt% GH4169 is used Alloy recycled materials are carried out. Firstly, the raw material is smelted by vacuum induction, then the raw material is remelted by electroslag in a protective atmosphere, and finally the raw material is smelted by vacuum self-consumption to obtain the finished product.

[0068]

[0069]

[0070] Heat the consumable ingot to 600°C and keep it warm for 2 hours;

[0071] After 9 hours, the consumable ingot is heated to 1000°C, and then kept for 2 hours;

[0072] After 4 hours, the consumable ingot is heated to 1160±10°C, and then kept...

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Abstract

The invention discloses a method for preparing ultra-fine-grained GH4169 alloy rods by utilizing recycled materials, comprising the following steps: A, cleaning recycled materials; B, smelting raw materials; C, realizing consumable ingot lathing through surface planing treatment; D , Homogenization annealing; E, forging processing. The invention can improve the deficiencies of the prior art and realize the purpose of producing high-quality ultrafine-grained GH4169 alloy rods by using recycled materials.

Description

technical field [0001] The invention relates to the technical field of alloy material preparation, in particular to a method for preparing ultrafine-grained GH4169 alloy rods from recycled materials. Background technique [0002] GH4169 alloy is a nickel-based deformed superalloy, which is widely used in turbine disks, turbine shafts, compressor blades and other components. At present, GH4169 for aero-engines is all produced with new materials, while foreign aero-engines use GH4169 alloy recycled materials. Already very common and well established. The United States produces high-temperature alloys as the first choice of recycled materials. At present, the proportion of returned materials from ATI in the United States is >70%. The chief engineer of ATI in the United States said: ATI is more willing to use recycled materials. The content of impurity elements such as O and S is low, and the quality of the products produced is better and the production is simpler. . Howeve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C19/05C22C1/02C22F1/10C23G1/10B21C37/04B21J5/00
CPCB21C37/04B21J5/002C22C1/023C22C19/056C22F1/10C23G1/10
Inventor 刘猛栾吉哲李爱民张欢欢田水仙王涛耿长建
Owner AVIC SHANGDA METAL REGENERATION TECH