CN115094293A - High-temperature alloy bar and preparation method thereof - Google Patents
High-temperature alloy bar and preparation method thereof Download PDFInfo
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 118
- 239000000956 alloy Substances 0.000 title claims abstract description 118
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 92
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 8
- 238000005266 casting Methods 0.000 claims description 60
- 238000003723 Smelting Methods 0.000 claims description 34
- 238000005406 washing Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 18
- 230000006698 induction Effects 0.000 claims description 15
- 238000009749 continuous casting Methods 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 238000007872 degassing Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 5
- 229910000601 superalloy Inorganic materials 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007670 refining Methods 0.000 claims description 4
- 238000000265 homogenisation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 15
- 238000009529 body temperature measurement Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a high-temperature alloy bar and a preparation method thereof, wherein the high-temperature alloy bar comprises the following chemical components in percentage by weight: cr20-25%, Co23-25%, Mo18-20%, W1-2%, C0.04-0.10%, Al2-5%, Fe5-8%, Ni8-12%, and the balance of unavoidable impurities. The high-temperature alloy bar and the preparation method thereof can work for a long time in an environment of about 1000 ℃, rare elements are not added, the raw material cost and the production cost are greatly reduced compared with other high-temperature alloys, the whole step is simple, the high-temperature alloy bar produced by the step is uniform in texture, high in product percent of pass and low in production cost, cannot be easily broken in use, and has high production efficiency, low production cost, high popularization significance and good prospect.
Description
Technical Field
The invention belongs to the field of steel materials, and particularly relates to a high-temperature alloy bar and a preparation method thereof.
Background
The high-temperature alloy is a metal material which takes iron, nickel and cobalt as the base and can work for a long time at a high temperature of more than 600 ℃ under the action of certain stress, and has excellent high-temperature strength, good oxidation resistance and hot corrosion resistance, good fatigue performance, good fracture toughness and other comprehensive properties.
With the rapid development of national economy, the use and design range of steel is wide, the application scenes are gradually increased, the requirements on the functionality are continuously improved, and high-temperature alloy suitable for high-temperature scenes exists;
however, half of the existing high-temperature alloys suitable for high-temperature scenes are suitable for ultrahigh-temperature alloys in the aerospace field scenes, and the types of the high-temperature alloys suitable for being used in the environment of 1000 ℃ are few, so that the high-temperature alloys with higher temperature are generally adopted, but the high-temperature alloys with higher temperature have high production cost and high price, so that the use cost ratio is lower, and therefore, a high-temperature alloy bar and a preparation method thereof are provided.
Disclosure of Invention
The invention mainly aims to provide a high-temperature alloy bar and a preparation method thereof, which can effectively solve the problems in the background art.
In order to achieve the purpose, the invention adopts the technical scheme that:
a high-temperature alloy bar comprises the following chemical components in percentage by weight: cr20-25%, Co23-25%, Mo18-20%, W1-2%, C0.04-0.10%, Al2-5%, Fe5-8%, Ni8-12%, and the balance of unavoidable impurities.
The present invention in a preferred example may be further configured to: a high-temperature alloy bar comprises the following chemical components in percentage by weight: cr23%, Co24%, Mo19%, W1%, C0.05%, Al3%, Fe7%, Ni10%, and the balance of other unavoidable impurities.
The invention in a preferred example may be further configured to: a preparation method of a high-temperature alloy bar comprises the following steps:
(1) and alloy preparation: preparing alloy raw materials according to the components of the high-temperature alloy bar;
(2) and (3) raw material treatment: pretreating the prepared raw materials;
(3) smelting raw materials: vacuum smelting is carried out on the pretreated raw materials;
(4) and casting raw materials: casting the smelted alloy ingot into an alloy ingot;
(5) and (3) bar processing: and further processing the alloy cast ingot to obtain the high-temperature alloy bar.
Preferably, the step of pretreating the raw material in the step (2) comprises the following steps:
acid washing of raw materials: the prepared raw materials are independently subjected to acid washing;
washing raw materials: washing the pickled raw materials by using running water;
drying raw materials: and drying the washed raw materials by adopting a dryer.
The invention in a preferred example may be further configured to: and (4) smelting by adopting a vacuum induction furnace, and applying a rotating magnetic field by installing a magnetic field generating device in the vacuum induction furnace.
The present invention in a preferred example may be further configured to: the temperature for the high-temperature smelting in the vacuum induction furnace in the step (3) is 1600-.
The present invention in a preferred example may be further configured to: and (4) before casting the raw materials, sequentially performing degassing treatment and multistage filtration treatment on the smelted raw materials.
The present invention in a preferred example may be further configured to: and (4) adopting semi-continuous casting when the raw materials are cast, wherein the casting speed of the semi-continuous casting is 20-30mm/min in the first 5 minutes, the casting speed of the semi-continuous casting is 30-50mm/min in 5-10 minutes, the casting speed of the semi-continuous casting is 50-80mm/min in 10-15 minutes, the subsequent casting speed is 80-100mm/min, the flow rate of cooling water in the casting process is 1800 plus 2200L/min, and the cooling water is atomized and then injected.
The present invention in a preferred example may be further configured to: and (4) after the raw materials are cast, homogenizing the alloy ingot, wherein the temperature of the alloy ingot is raised to 600-650 ℃ during the homogenization treatment, and then the alloy ingot is naturally cooled after heat preservation for 6-8 h.
The present invention in a preferred example may be further configured to: and (5) heating the alloy cast ingot to 1200 ℃ before processing the bar, and extruding the alloy cast ingot into the high-temperature alloy bar by using an extruder.
Compared with the prior art, the high-temperature alloy bar and the preparation method thereof have the following beneficial effects:
the high-temperature alloy bar has good tensile strength and yield strength in an environment of about 1000 ℃, can work for a long time in an environment of about 1000 ℃, is not added with rare elements, greatly reduces the raw material cost and the production cost compared with other high-temperature alloys, and has higher popularization significance;
the invention also provides a preparation method of the high-temperature alloy bar, which has the advantages that the whole steps are simple, the high-temperature alloy bar produced by adopting the steps is uniform in texture, the product percent of pass is high, the high-temperature alloy bar cannot be easily broken in use, the production efficiency is high, the production cost is low, and the popularization significance is high.
Drawings
FIG. 1 is a flow chart of a method of manufacturing a superalloy rod of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
A high-temperature alloy bar and a preparation method thereof are disclosed, wherein the high-temperature alloy bar comprises the following chemical components in percentage by weight: cr 21%, Co 23%, Mo 18%, W1.3%, C0.05%, Al3%, Fe 6%, Ni 9%, and the balance of other unavoidable impurities.
A preparation method of a high-temperature alloy bar comprises the following steps:
(1) and alloy preparation: preparing alloy raw materials according to the components of the high-temperature alloy bar;
(2) and (3) raw material treatment: pretreating the prepared raw materials;
the raw material pretreatment method comprises the following steps:
acid washing of raw materials: the prepared raw materials are independently subjected to acid washing;
washing raw materials: washing the pickled raw materials by using running water;
drying raw materials: and drying the washed raw materials by adopting a dryer.
(3) Smelting raw materials: vacuum smelting is carried out on the pretreated raw materials;
smelting by adopting a vacuum induction furnace, installing a magnetic field generating device in the vacuum induction furnace, and applying a rotating magnetic field;
the raw materials contain aluminum components, and the weak magnetism of the aluminum is utilized, and a rotating magnetic field is added, so that the raw materials can be driven to move mutually, and the effect of fully blending the raw materials is realized.
The temperature for high-temperature smelting in the vacuum induction furnace is 1630 +/-10 ℃, the refining temperature is 1620 +/-5 ℃, and infrared temperature measurement is adopted during smelting, so that the temperature measurement precision is higher, and the smelting temperature is ensured;
(4) and casting raw materials: casting the smelted alloy ingot into an alloy ingot;
the smelting raw materials are sequentially subjected to degassing treatment before the raw materials are cast, so that the influence of gas on casting and multistage filtration treatment are reduced, impurities generated by smelting are filtered, and the processing precision of the alloy is further improved;
the raw material casting adopts semi-continuous casting, the casting speed of the first 5 minutes is 20-30mm/min, the casting speed per minute is increased by 1mm/min, the casting speed of 5-10 minutes is 30-50mm/min, the casting speed per minute is increased by 2mm/min, the casting speed of 10-15 minutes is 50-80mm/min, the casting speed per minute is increased by 3mm/min, the subsequent casting speed is 90mm/min, the constant casting speed is kept, the flow rate of cooling water in the casting process is 1800 plus one hundred fifty percent (L) of 2200L/min, the cooling water is atomized and then injected, the cooling effect is good, and the cooling is faster;
after the raw materials are cast, homogenizing the alloy cast ingot, wherein the alloy cast ingot is heated to 600 ℃ during homogenizing treatment, and then naturally cooled after heat preservation for 6-8 h.
(5) And (3) bar processing: further processing the alloy cast ingot to obtain a high-temperature alloy bar;
heating the alloy ingot to 1200 ℃ before processing the bar, and extruding the alloy ingot into a high-temperature alloy bar by an extruder, wherein the extrusion pressure of the extruder is 6000T.
Example 2
A high-temperature alloy bar and a preparation method thereof are disclosed, wherein the high-temperature alloy bar comprises the following chemical components in percentage by weight: cr23%, Co24%, Mo19%, W1%, C0.05%, Al3%, Fe7%, Ni10%, and the balance of other unavoidable impurities.
A preparation method of a high-temperature alloy bar comprises the following steps:
(1) and alloy preparation: preparing alloy raw materials according to the components of the high-temperature alloy bar;
(2) and (3) raw material treatment: pretreating the prepared raw materials;
the raw material pretreatment steps comprise:
acid washing of raw materials: the prepared raw materials are independently subjected to acid washing;
washing raw materials: washing the pickled raw materials by using flowing water;
drying raw materials: and drying the washed raw materials by adopting a dryer.
(3) Smelting raw materials: vacuum smelting is carried out on the pretreated raw materials;
smelting by adopting a vacuum induction furnace, installing a magnetic field generating device in the vacuum induction furnace, and applying a rotating magnetic field;
the temperature for high-temperature smelting in the vacuum induction furnace is 1640 +/-10 ℃, the refining temperature is 1620 +/-5 ℃, and infrared temperature measurement is adopted during smelting, so that the temperature measurement precision is higher, and the smelting temperature is ensured;
(4) and casting raw materials: casting the smelted alloy ingot;
the smelting raw materials are sequentially subjected to degassing treatment before casting, so that the influence of gas on casting is reduced, multi-stage filtration treatment is performed, impurities generated by smelting are filtered, and the processing precision of the alloy is further improved;
the raw material casting adopts semi-continuous casting, the casting speed of the first 5 minutes is 20-30mm/min, the casting speed per minute is increased by 1mm/min, the casting speed of 5-10 minutes is 30-50mm/min, the casting speed per minute is increased by 2mm/min, the casting speed of 10-15 minutes is 50-80mm/min, the casting speed per minute is increased by 3mm/min, the subsequent casting speed is 90mm/min, the constant casting speed is kept, the flow rate of cooling water in the casting process is 1800 plus one hundred fifty percent (L) of 2200L/min, the cooling water is atomized and then injected, the cooling effect is good, and the cooling is faster;
after the raw materials are cast, homogenizing the alloy cast ingot, wherein the alloy cast ingot is heated to 600 ℃ during homogenizing treatment, and then naturally cooled after heat preservation for 6-8 h.
(6) And (3) bar processing: further processing the alloy cast ingot to obtain a high-temperature alloy bar;
before the bar is processed, the alloy cast ingot is heated to 1200 ℃, and then the alloy cast ingot is extruded into a high-temperature alloy bar by an extruder, wherein the extrusion pressure of the extruder is 6000T.
Example 3
A high-temperature alloy bar and a preparation method thereof are disclosed, wherein the high-temperature alloy bar comprises the following chemical components in percentage by weight: cr 25%, Co24%, Mo19%, W1.6%, C0.06%, Al 4%, Fe7%, Ni 9%, and the balance of other unavoidable impurities.
A preparation method of a high-temperature alloy bar comprises the following steps:
(1) and alloy preparation: preparing alloy raw materials according to the components of the high-temperature alloy bar;
(2) and (3) raw material treatment: pretreating the prepared raw materials;
the raw material pretreatment method comprises the following steps:
acid washing of raw materials: the prepared raw materials are independently subjected to acid washing;
washing raw materials: washing the pickled raw materials by using running water;
drying raw materials: and drying the washed raw materials by adopting a dryer.
(3) Smelting raw materials: vacuum smelting is carried out on the pretreated raw materials;
smelting by adopting a vacuum induction furnace, installing a magnetic field generating device in the vacuum induction furnace, and applying a rotating magnetic field;
the temperature for high-temperature smelting in the vacuum induction furnace is 1650 +/-10 ℃, the refining temperature is 1620 +/-5 ℃, and infrared temperature measurement is adopted during smelting, so that the temperature measurement precision is higher, and the smelting temperature is ensured;
(4) and casting raw materials: casting the smelted alloy ingot into an alloy ingot;
the smelting raw materials are sequentially subjected to degassing treatment before casting, so that the influence of gas on casting is reduced, multi-stage filtration treatment is performed, impurities generated by smelting are filtered, and the processing precision of the alloy is further improved;
the raw material casting adopts semi-continuous casting, the casting speed of the first 5 minutes is 20-30mm/min, the casting speed per minute is increased by 1mm/min, the casting speed of 5-10 minutes is 30-50mm/min, the casting speed per minute is increased by 2mm/min, the casting speed of 10-15 minutes is 50-80mm/min, the casting speed per minute is increased by 3mm/min, the subsequent casting speed is 90mm/min, the constant casting speed is kept, the flow rate of cooling water in the casting process is 1800 plus one hundred fifty percent (L) of 2200L/min, the cooling water is atomized and then injected, the cooling effect is good, and the cooling is faster;
after the raw materials are cast, homogenizing the alloy cast ingot, wherein the alloy cast ingot is heated to 600 ℃ during homogenizing treatment, and then naturally cooled after heat preservation for 6-8 h.
(7) And (3) bar processing: further processing the alloy ingot to obtain a high-temperature alloy bar;
heating the alloy ingot to 1200 ℃ before processing the bar, and extruding the alloy ingot into a high-temperature alloy bar by an extruder, wherein the extrusion pressure of the extruder is 6000T.
Corresponding high-temperature alloy bars are produced according to the preparation methods of the embodiment 1, the embodiment 2 and the embodiment 3, and then the parameters of the high-temperature alloy bars are detected under the environment of 1000 ℃, and the detection results are as follows:
| tensile strength (MPa) | Yield strength (MPa) | Load 1000MPa service life (h) | |
| Example 1 | 1325 | 1285 | 475 |
| Example 2 | 1356 | 1294 | 521 |
| Example 3 | 1352 | 1297 | 518 |
It should be noted that, in the preparation method of the high-temperature alloy bar, the weak magnetism of aluminum is utilized during smelting, a rotating magnetic field is added, and the raw materials can be driven to move mutually, so that the effect of fully blending the raw materials is realized, the smelted raw materials are sequentially subjected to degassing treatment before casting, the influence of gas on casting and multistage filtration treatment are reduced, impurities generated by smelting are filtered, the processing precision of the alloy is further improved, and the produced alloy has better quality by being matched with homogenization treatment performed after casting.
The high-temperature alloy bar has good tensile strength and yield strength in an environment of about 1000 ℃, can work for a long time in an environment of about 1000 ℃, is not added with rare elements, greatly reduces the raw material cost and the production cost compared with other high-temperature alloys, and has higher popularization significance;
the whole steps of the preparation method of the high-temperature alloy bar are simple, the high-temperature alloy bar produced by the steps is uniform in texture, high in product percent of pass and low in production cost, and meanwhile the high-temperature alloy bar cannot be easily broken in use, and the preparation method has high production efficiency and high popularization significance.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A high-temperature alloy bar and a preparation method thereof are characterized in that the high-temperature alloy bar comprises the following chemical components in percentage by weight: cr20-25%, Co23-25%, Mo18-20%, W1-2%, C0.04-0.10%, Al2-5%, Fe5-8%, Ni8-12%, and the balance of unavoidable impurities.
2. The high-temperature alloy bar and the preparation method thereof according to claim 1, wherein the high-temperature alloy bar is characterized in that: the high-temperature alloy bar comprises the following chemical components in percentage by weight: cr23%, Co24%, Mo19%, W1%, C0.05%, Al3%, Fe7%, Ni10%, and the balance of other unavoidable impurities.
3. A method for producing a superalloy rod according to any of claims 1 to 2, comprising the steps of:
(1) and alloy preparation: preparing alloy raw materials according to the components of the high-temperature alloy bar;
(2) and (3) raw material treatment: pretreating the prepared raw materials;
(3) smelting raw materials: vacuum smelting is carried out on the pretreated raw materials;
(4) and casting raw materials: casting the smelted alloy ingot into an alloy ingot;
(5) and (3) bar processing: and further processing the alloy ingot to obtain the high-temperature alloy bar.
4. A method of producing a superalloy rod and a method of making the same according to claim 3, wherein: the raw material pretreatment step in the step (2) comprises the following steps:
acid washing of raw materials: the prepared raw materials are independently subjected to acid washing;
washing raw materials: washing the pickled raw materials by using running water;
drying raw materials: and drying the washed raw materials by adopting a dryer.
5. The method for preparing a high-temperature alloy bar and the method for preparing the same according to claim 3, wherein the method comprises the following steps: and (3) smelting by adopting a vacuum induction furnace, and applying a rotating magnetic field by installing a magnetic field generating device in the vacuum induction furnace.
6. The method for preparing a high-temperature alloy bar and the method for preparing the same according to claim 5, wherein the method comprises the following steps: the temperature for the high-temperature smelting in the vacuum induction furnace in the step (3) is 1600-1650 ℃, and the refining temperature is 1600-1630 ℃.
7. The method of claim 3, wherein the method of manufacturing the superalloy rod comprises: and (4) before casting the raw materials, sequentially performing degassing treatment and multistage filtration treatment on the smelted raw materials.
8. The method for preparing a high-temperature alloy bar and the method for preparing the same according to claim 3, wherein the method comprises the following steps: and (4) adopting semi-continuous casting when the raw materials are cast, wherein the casting speed of the semi-continuous casting is 20-30mm/min in the first 5 minutes, the casting speed of the semi-continuous casting is 30-50mm/min in 5-10 minutes, the casting speed of the semi-continuous casting is 50-80mm/min in 10-15 minutes, the subsequent casting speed is 80-100mm/min, the flow rate of cooling water in the casting process is 1800 plus 2200L/min, and the cooling water is atomized and then injected.
9. The method for preparing a high-temperature alloy bar and the method for preparing the same according to claim 3, wherein the method comprises the following steps: and (4) after the raw materials are cast, homogenizing the alloy ingot, wherein the temperature of the alloy ingot is raised to 600-650 ℃ during the homogenization treatment, and then the alloy ingot is naturally cooled after heat preservation for 6-8 h.
10. The method of claim 3, wherein the method of manufacturing the superalloy rod comprises: and (5) heating the alloy cast ingot to 1200 ℃ before processing the bar, and extruding the alloy cast ingot into the high-temperature alloy bar by using an extruder.
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| GB1331007A (en) * | 1971-04-01 | 1973-09-19 | United Aircraft Corp | Coated cobalt-base super alloys |
| KR20190140286A (en) * | 2018-06-11 | 2019-12-19 | 한국기계연구원 | Nickel-based alloy with excellent creep property and oxidation resistance at high temperature and method for manufacturing the same |
| CN110468361A (en) * | 2019-07-22 | 2019-11-19 | 中国航发北京航空材料研究院 | A kind of preparation method of wrought superalloy fine grain bar |
| WO2021248755A1 (en) * | 2020-06-12 | 2021-12-16 | 江苏银环精密钢管有限公司 | Novel nickel-chromium-cobalt-molybdenum high-temperature alloy seamless pipe for use in power station and manufacturing method therefor |
| CN112080670A (en) * | 2020-09-10 | 2020-12-15 | 中国科学院金属研究所 | High-temperature alloy and preparation method thereof |
| CN114231765A (en) * | 2021-11-26 | 2022-03-25 | 北京北冶功能材料有限公司 | Preparation method and application of high-temperature alloy bar |
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