CN108531755A - A kind of vacuum induction furnace smelting technique of high aluminium profiles high temperature alloy GH6783 - Google Patents

A kind of vacuum induction furnace smelting technique of high aluminium profiles high temperature alloy GH6783 Download PDF

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CN108531755A
CN108531755A CN201810316210.XA CN201810316210A CN108531755A CN 108531755 A CN108531755 A CN 108531755A CN 201810316210 A CN201810316210 A CN 201810316210A CN 108531755 A CN108531755 A CN 108531755A
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aluminium
stove
added
content
before adding
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CN108531755B (en
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王志刚
闫森
侯智鹏
张玉春
杨玉军
张佳维
田水仙
于杰
李成龙
秋立鹏
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FUSHUN SPECIAL STEEL SHARES Co Ltd
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    • 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
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C22B4/06—Alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/04—Refining by applying a vacuum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
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Abstract

The present invention discloses a kind of vacuum induction furnace smelting technique of high aluminium profiles high temperature alloy GH6783, it is therefore an objective to be controlled by rational smelting process, can reach stable aluminium element recovery rate, produce the qualified GH6783 alloy electrodes of ingredient, tissue.Technical solution of the present invention：Technological process：Aluminium dispensing → stock → evacuation → charging → stands → is tuned into point → cast to electricity → charging → fine melt → stirring →；It feeds according to the sequence of aluminium, titanium, niobium after the refining period of the fine melt；Gas content analysis in stove is carried out before adding aluminium, ensures that oxygen content is less than 15 × 10‑6, nitrogen content is less than 20 × 10‑6；Before adding aluminium, temperature is reduced to 1480 DEG C~1500 DEG C in stove, ensures that the recovery rate of aluminium and reduction form field trash.The present invention reaches stability contorting aluminium element recovery rate using rational smelting process, effectively prevents excessively forming field trash containing aluminium profiles.

Description

A kind of vacuum induction furnace smelting technique of high aluminium profiles high temperature alloy GH6783
Technical field
The invention belongs to specific alloy smelting processes, and in particular to a kind of vacuum induction of high aluminium profiles high temperature alloy GH6783 Stove smelting process.
Background technology
GH6783 alloys are the iron-cobalt-nickel base anti-oxidative low-expansion alloy that need to strengthen element based on niobium, aluminium, titanium, are to answer It is characterized in aluminium content height with the most typically of widest ferrimagnet, the alloy, is 5.0%~6.0%, since aluminium element is lived It is high to sprinkle property, element recovery rate and the control difficulty of field trash are very big in smelt production, the external production to GH6783 alloys Technique is bottled up, and related data, the more only research about material structure and performance are can not find out, and is not had still both at home and abroad at present About the introduction of the research work of the type high temperature alloy smelting process, no relevant documents and materials record GH6783 alloy smeltings The related content of sweetening process.
Invention content
The present invention discloses a kind of vacuum induction furnace smelting technique of high aluminium profiles high temperature alloy GH6783, by reasonably smelting Technology controlling and process can reach stable aluminium element recovery rate, produce the qualified GH6783 alloy electrodes of ingredient, tissue.
Technical solution of the present invention：
1. technological process
Aluminium dispensing → stock → evacuation → charging → stands → is tuned into point → cast to electricity → charging → fine melt → stirring →.
2. concrete technology measure
1. the chemical composition (weight percent, %) of GH6783 alloys should meet the regulation of table 1, matched according to chemical composition Material.
Table 1
1 (Continued) of table
2. controlling the amount for requiring to calculate and smelting required various raw material according to alloying component.
3. selecting high-quality smart steel, metallic nickel, metallic cobalt, crome metal, metal niobium, metallic aluminium, Titanium, ferro-boron, graphite The materials such as electrode and the accurate intermediate alloy of ingredient, ensure chemical composition it is accurate, it is all enter stove raw material keep cleaning, oil-free It is dirty.
4. charging sequence will be according to the sequence of intermediate alloy after first simple metal.
5. pumping high vacuum in fusion process ensures that vacuum degree is not more than 30Pa；Charging by batches enters stove, after being packed into the first batch of material Expect to electrification.
6. refining period vacuum degree control, in 1Pa~5Pa, refining period is more than 90min, refining temperature control 1500 DEG C~ Between 1550 DEG C.
7. feeding according to the sequence of aluminium, titanium, niobium after refining period.
8. plus gas content is analyzed in progress stove before aluminium, ensures that oxygen content is less than 15 × 10-6, nitrogen content is less than 20 × 10-6；Before adding aluminium, temperature is reduced to 1480 DEG C~1500 DEG C in stove, and aluminium is divided to two to three batches of additions, single addition to be no more than 150kg, 5min~10min is stirred after being added every time；The amount of allocating of aluminium is controlled 5.7%~5.9%, and electrode aluminium content stability contorting is made to exist 5.5% or so, ensure that the recovery rate of aluminium and reduction form field trash.
9. electrode casting carries out under vacuum, 1470 DEG C~1490 DEG C of pouring temperature.
To the explanation of inventive point：
1. GH6783 alloy aluminium contents are most in current all wrought superalloys, the current nothing of control of recovery rate Related data introduction；Oxygen content before present invention control plus aluminium is less than 15 × 10-6, nitrogen content is less than 20 × 10-6；Aluminium is divided to two to arrive Three batches of additions, single addition are no more than 150kg；Molten steel temperature is reduced before adding aluminium simultaneously to 1480 DEG C~1490 DEG C or so etc. Measure, reasonably controls the recovery rate of aluminium element, and the amount of allocating control of aluminium makes electrode aluminium content stablize 5.7%~5.9% Control is 5.5% or so
2. aluminium element activity in smelt production is very strong, by adding the control before aluminium to gas content, ensure Oxygen content is less than 15 × 10-6, nitrogen content is less than 20 × 10-6, it is possible to reduce aluminium element scaling loss effectively prevents excessively formation and contains Aluminium profiles field trash.
The present invention reaches stability contorting aluminium element recovery rate using rational smelting process, effectively prevents excessively formation and contains Aluminium profiles field trash.
Specific implementation mode
The present invention is described in detail below by embodiment.
Embodiment 1, embodiment 1 and embodiment 3 execute jointly：
Technological process：Aluminium dispensing → stock → evacuation → charging → stand → be tuned into electricity → charging → fine melt → stirring → Point → cast.
Processing step：
2. controlling the amount for requiring to calculate and smelting required various raw material according to alloying component.
3. selecting high-quality smart steel, metallic nickel, metallic cobalt, crome metal, metal niobium, metallic aluminium, Titanium, ferro-boron, graphite The materials such as electrode and the accurate intermediate alloy of ingredient, all raw material is by examining, and chemical composition is accurate, surface cleaning, oil-free It is dirty.
4. charging sequence will be according to the sequence of intermediate alloy after first simple metal.
5. normal material, whole vacuum degree is not more than 30Pa.
6. refining period vacuum degree control, in 1Pa~5Pa, refining period is more than 90min, refining temperature control 1500 DEG C~ Between 1550 DEG C.
8. plus aluminium, plus titanium, niobium and ferro-boron, carry out alloying.
Embodiment 1
GH6783 alloys, electrode ingot shape Φ 250mm, heat (batch) number 15240160636
Processing step：
1. practical food ingredient is carried out according to the following table 2.
Table 2
2 (Continued) of table
7. sampling analysis gas, oxygen content 10.5 × 10-6, nitrogen content 15 × 10-6。
8. thermometric is 1495 DEG C, metallic aluminium is averagely added in two portions according to calculation amount, and 5min is stirred after being added every time.
9. pouring into a mould Φ 250mm electrodes, 1480 DEG C of pouring temperature.
Constituent analysis：
Constituent analysis is carried out to pouring injecting electrode, as a result such as table 3.
Table 3
3 (Continued) of table
Embodiment 2
GH6783 alloys, electrode ingot shape Φ 340mm, heat (batch) number 15240170473
Processing step：
1. practical food ingredient is carried out according to the following table 4 ingredient.
Table 4
4 (Continued) of table
7. sampling analysis gas, oxygen content 12.5 × 10-6, nitrogen content 13 × 10-6。
8. thermometric is 1480 DEG C, metallic aluminium is averagely added in two portions according to calculation amount, and 10min is stirred after being added every time.
9. pouring into a mould Φ 340mm electrodes, 1490 DEG C of pouring temperature.
Constituent analysis：
Constituent analysis is carried out to pouring injecting electrode, as a result such as table 5.
Table 5
5 (Continued) of table
Embodiment 3
GH6783 alloys, electrode ingot shape Φ 340mm, heat (batch) number 17240410025
Processing step：
1. practical food ingredient is carried out according to the following table 6 ingredient
Table 6
6 (Continued) of table
7. sampling analysis gas, oxygen content 15 × 10-6, nitrogen content 18 × 10-6。
8. thermometric is 1480 DEG C, metallic aluminium is averagely added in two portions according to calculation amount, and 10min is stirred after being added every time.
9. pouring into a mould Φ 340mm electrodes, 1490 DEG C of pouring temperature.
Constituent analysis：
Constituent analysis is carried out to pouring injecting electrode, as a result such as table 7.
Table 7
7 (Continued) of table

Claims (4)

1. a kind of vacuum induction furnace smelting technique of high aluminium profiles high temperature alloy GH6783, it is characterised in that：The smelting process：Aluminium Dispensing → stock → evacuation → charging → is tuned into point → cast to electricity → charging → fine melt → stirring is stood →；The essence of the fine melt It feeds according to the sequence of aluminium, titanium, niobium after the refining phase；Gas content analysis in stove is carried out before adding aluminium, ensures that oxygen content is small In 15 × 10-6, nitrogen content is less than 20 × 10-6；Before adding aluminium, temperature is reduced to 1480 DEG C~1500 DEG C in stove, and aluminium is divided to two to three batches It is added, 5min~10min is stirred after being added every time；Single addition is no more than 150kg, the amount of allocating control of aluminium 5.7%~ 5.9%, make electrode aluminium content stability contorting 5.5% or so, ensures that the recovery rate of aluminium and reduction form field trash.
2. a kind of vacuum induction furnace smelting technique of high aluminium profiles high temperature alloy GH6783, feature exist according to claim 1 In：Gas content is analyzed in the stove, oxygen content 10.5 × 10-6, nitrogen content 15 × 10-6；Before adding aluminium, thermometric is 1495 in stove DEG C, aluminium is added in two batches according to calculation amount is average, and 5min is stirred after being added every time.
3. a kind of vacuum induction furnace smelting technique of high aluminium profiles high temperature alloy GH6783, feature exist according to claim 1 In：Gas content is analyzed in the stove, oxygen content 12.5 × 10-6, nitrogen content 13 × 10-6；Before adding aluminium, thermometric is 1480 in stove DEG C, aluminium is added in two batches according to calculation amount is average, and 10min is stirred after being added every time.
4. a kind of vacuum induction furnace smelting technique of high aluminium profiles high temperature alloy GH6783, feature exist according to claim 1 In：Gas content is analyzed in the stove, oxygen content 15 × 10-6, nitrogen content 18 × 10-6；Before adding aluminium, thermometric is 1480 DEG C in stove, Aluminium is added in two batches according to calculation amount is average, and 10min is stirred after being added every time.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111455199A (en) * 2020-04-16 2020-07-28 江苏星火特钢有限公司 Smelting process of high-temperature alloy vacuum induction furnace
CN111531158A (en) * 2020-06-16 2020-08-14 江苏兴湖耐火材料有限公司 Manufacturing method of high-strength scouring-resistant stopper rod for continuous casting
CN114317996A (en) * 2021-12-08 2022-04-12 抚顺特殊钢股份有限公司 Method for manufacturing low-gas-content high-titanium low-aluminum nickel-cobalt alloy electroslag remelting electrode
CN114990344A (en) * 2022-06-07 2022-09-02 大冶特殊钢有限公司 Method for producing high-Al alloy by adopting vacuum consumable melting
CN117363913A (en) * 2023-12-08 2024-01-09 成都先进金属材料产业技术研究院股份有限公司 Low-carbon high-aluminum niobium-containing cobalt-based superalloy and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078922A (en) * 1975-12-08 1978-03-14 United Technologies Corporation Oxidation resistant cobalt base alloy
JPS57161046A (en) * 1981-03-05 1982-10-04 Cabot Corp Alloy
CN101440436A (en) * 2007-11-21 2009-05-27 中国科学院金属研究所 Purified smelting technique for high-temperature superalloy
CN104532027A (en) * 2014-12-09 2015-04-22 抚顺特殊钢股份有限公司 Production technology of tube blank alloy CN617 for ultra-supercritical thermal power unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078922A (en) * 1975-12-08 1978-03-14 United Technologies Corporation Oxidation resistant cobalt base alloy
JPS57161046A (en) * 1981-03-05 1982-10-04 Cabot Corp Alloy
CN101440436A (en) * 2007-11-21 2009-05-27 中国科学院金属研究所 Purified smelting technique for high-temperature superalloy
CN104532027A (en) * 2014-12-09 2015-04-22 抚顺特殊钢股份有限公司 Production technology of tube blank alloy CN617 for ultra-supercritical thermal power unit

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
杨玉军等: "高温合金真空感应熔炼过程中的脱氧反应", 《钢铁研究学报》 *
韩光炜等: "《动力与能源用高温结构材料，第十一届中国高温合金年会论文集》", 31 May 2007, 冶金工业出版社 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111455199A (en) * 2020-04-16 2020-07-28 江苏星火特钢有限公司 Smelting process of high-temperature alloy vacuum induction furnace
CN111531158A (en) * 2020-06-16 2020-08-14 江苏兴湖耐火材料有限公司 Manufacturing method of high-strength scouring-resistant stopper rod for continuous casting
CN111531158B (en) * 2020-06-16 2021-08-13 江苏兴湖耐火材料有限公司 Manufacturing method of high-strength scouring-resistant stopper rod for continuous casting
CN114317996A (en) * 2021-12-08 2022-04-12 抚顺特殊钢股份有限公司 Method for manufacturing low-gas-content high-titanium low-aluminum nickel-cobalt alloy electroslag remelting electrode
CN114317996B (en) * 2021-12-08 2023-04-28 抚顺特殊钢股份有限公司 Manufacturing method of low-gas-content high-titanium low-aluminum nickel cobalt alloy electroslag remelting electrode
CN114990344A (en) * 2022-06-07 2022-09-02 大冶特殊钢有限公司 Method for producing high-Al alloy by adopting vacuum consumable melting
CN114990344B (en) * 2022-06-07 2023-11-24 大冶特殊钢有限公司 Method for producing high Al alloy by adopting vacuum consumable smelting
CN117363913A (en) * 2023-12-08 2024-01-09 成都先进金属材料产业技术研究院股份有限公司 Low-carbon high-aluminum niobium-containing cobalt-based superalloy and preparation method thereof
CN117363913B (en) * 2023-12-08 2024-03-08 成都先进金属材料产业技术研究院股份有限公司 Low-carbon high-aluminum niobium-containing cobalt-based superalloy and preparation method thereof

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