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Preparation method of high-temperature alloy part

A technology for superalloy and parts, applied in the field of preparation of superalloy parts, can solve the problems of inability to prepare complex parts, poor quality stability, complex process, etc., and achieve the effect of ensuring shape and dimensional accuracy, low production cost, and easy processing

Pending Publication Date: 2021-03-26
无锡科宇模具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional casting methods and mechanical processing methods are complicated in process, poor in quality stability, expensive in materials, and unable to prepare complex parts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for preparing a high-temperature alloy part, the method comprising the following steps:

[0019] Step 1. Weigh the following raw materials by weight: 140 parts of electrolytic copper powder, 60 parts of iron powder, 10 parts of aluminum nitride powder, 8 parts of manganese iron ore powder, 2 parts of alumina, 4-9 parts of chromium powder, fluoride 5 parts of calcium powder, 20 parts of boron nitride ceramic powder, 2 parts of silicon dioxide, 5 parts of molybdenum disulfide, 12 parts of dimethyl trimethylsilyl phosphonate, 2 parts of acrylamide, 2 parts of zinc stearate, 10 parts of glass microspheres, 10 parts of aluminate coupling agent, 15 parts of flake graphite powder, and 5 parts of tungsten carbide powder. The solids in the above raw materials are respectively crushed and ground, and the particle size is 50-150 μm after grinding. powder;

[0020] Step 2. Put the electrolytic copper powder, iron powder, and aluminate coupling agent into the mixer and sti...

Embodiment 2

[0026] A method for preparing a high-temperature alloy part, the method comprising the following steps:

[0027] Step 1. Weigh the following raw materials by weight: 170 parts of electrolytic copper powder, 70 parts of iron powder, 15 parts of aluminum nitride powder, 12 parts of manganese iron ore powder, 5 parts of alumina, 7 parts of chromium powder, calcium fluoride powder 10 parts, 25 parts of boron nitride ceramic powder, 5 parts of silicon dioxide, 7 parts of molybdenum disulfide, 13 parts of dimethyl trimethylsilyl phosphonate, 3 parts of acrylamide, 4 parts of zinc stearate, glass micro 15 parts of beads, 12 parts of aluminate coupling agent, 20 parts of flaky graphite powder, and 7 parts of tungsten carbide powder. The solids in the above raw materials are respectively crushed and ground, and the powder with a particle size of 50-150 μm is obtained after grinding;

[0028] Step 2. Put the electrolytic copper powder, iron powder, and aluminate coupling agent into the ...

Embodiment 3

[0034] A method for preparing a high-temperature alloy part, the method comprising the following steps:

[0035] Step 1. Weigh the following raw materials by weight: 200 parts of electrolytic copper powder, 90 parts of iron powder, 20 parts of aluminum nitride powder, 15 parts of ferromanganese ore powder, 8 parts of alumina, 9 parts of chromium powder, and calcium fluoride powder 15 parts, 30 parts of boron nitride ceramic powder, 7 parts of silicon dioxide, 9 parts of molybdenum disulfide, 15 parts of dimethyl trimethylsilyl phosphonate, 4 parts of acrylamide, 5 parts of zinc stearate, glass micro 20 parts of beads, 14 parts of aluminate coupling agent, 25 parts of flake graphite powder, and 9 parts of tungsten carbide powder, each solid in the above raw materials is crushed and ground respectively, and the powder with a particle size of 50-150 μm is obtained after grinding;

[0036] Step 2. Put the electrolytic copper powder, iron powder, and aluminate coupling agent into t...

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Abstract

The invention discloses a preparation method of a high-temperature alloy part. The preparation method comprises the following steps: firstly, weighing the following raw materials: electrolytic copperpowder, iron powder, aluminum nitride powder, manganite powder, aluminum oxide, chromium powder, calcium fluoride powder, boron nitride ceramic powder, silicon dioxide, molybdenum disulfide, dimethyltrimethylsilyl methylphosphonate, acrylamide, zinc stearate, glass beads, an aluminate coupling agent, flake graphite powder and tungsten carbide powder; adding the raw materials into a stirrer to beuniformly stirred, putting the mixture into a mold, and pressing the mixture into a blank; sintering the pressed blank in a sintering furnace; and conveying the sintered pressed blank into a steam treatment furnace, carrying out steam treatment, cooling the pressed blank after being tempered, grinding the pressed blank after being taken out, and obtaining the high-temperature alloy part. Accordingto the method, machining is easy, the shape and size precision of the powder metallurgy part can be well guaranteed, the high-temperature resistance of the prepared high-temperature alloy part can beimproved, and the part is good in wear resistance, long in service life, low in production cost and high in pressure resistance.

Description

technical field [0001] The invention relates to a preparation method of a superalloy part. [0002] technical background [0003] Superalloys refer to a class of metal materials that can work for a long time at high temperatures above 600°C and under certain stresses. They have excellent high-temperature strength, good oxidation resistance and thermal corrosion resistance, good fatigue performance, fracture toughness and other comprehensive properties. , also known as "super alloys," are mainly used in aerospace and energy fields. Traditional casting methods and mechanical processing methods are complicated in process, poor in quality stability, expensive in materials, and unable to prepare complex parts. However, powder metallurgy is not limited by smelting. It can add alloy components or other structural components, and adjust it according to requirements in a considerable range, so as to achieve the effect of matching the parts in terms of mechanical properties. Powder...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F3/02B22F3/10B22F3/24C22C9/00C22C32/00
CPCB22F3/02B22F3/1017B22F3/24C22C9/00C22C32/0005B22F2003/247B22F2003/248B22F1/102
Inventor 尤秋林
Owner 无锡科宇模具有限公司
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