CN106591684A - Preparation method for iron, chromium and aluminum alloy ingot castings - Google Patents
Preparation method for iron, chromium and aluminum alloy ingot castings Download PDFInfo
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- CN106591684A CN106591684A CN201611239320.8A CN201611239320A CN106591684A CN 106591684 A CN106591684 A CN 106591684A CN 201611239320 A CN201611239320 A CN 201611239320A CN 106591684 A CN106591684 A CN 106591684A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making 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
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/003—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals by induction
-
- 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
- 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
- C22B9/16—Remelting metals
- C22B9/20—Arc remelting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- 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)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a preparation method for iron, chromium and aluminum alloy ingot castings. The preparation method includes the steps that, by mass, 3-5 parts of aluminum, 10-20 parts of chromium and 75-87 parts of iron are taken; then, a vacuum induction smelting furnace is used for alignment to perform smelting, and the iron and the chromium are sequentially smelted; then the aluminum is smelted under the argon gas environment; then two times of smelting processes are performed; and finally, a riser is cut off after skin removing and flaw detection, and then the iron, chromium and aluminum alloy ingot castings are obtained. The iron, chromium and aluminum alloy ingot castings prepared through the method are free of the metallurgical deflects of segregation, porosity, shrinkage cavity and the like, good blank materials are provided for subsequent heat working, and the method is easy to control, small in pollution and low in production cost.
Description
Technical field
The invention belongs to alloy material preparing technical field, is related to a kind of preparation method of Aludirome ingot casting.
Background technology
Aludirome has the advantages that high-fire resistance, thermal conductance, oxidisability and good machining, in all trades and professions
It is used widely, its demand is increasingly increased.Meanwhile, the cleanliness factor and internal soundness to Aludirome ingot casting is required
Also more and more higher.
The alloy is typically prepared using the method for electroslag remelting or vacuum induction melting.Wherein esr process technique control
Difficulty processed is big, and inside ingot is also easy to produce crackle, has a strong impact on the mechanical property of material, and the method power consumption is larger, cost compared with
Height, slag charge easily pollutes environment in reflow process.Inside ingot prepared by vacuum induction melting is also easy to produce the metallurgy such as loose, shrinkage cavity
Defect, it is impossible to carry out follow-up hot-working.Therefore, developing efficient, low cost, and meet the preparation technology of material homogeneity becomes
The focus of research.
The content of the invention
It is an object of the invention to provide a kind of preparation method of Aludirome ingot casting.Ferrum-chromium-aluminum prepared by the method is closed
Golden ingot casting does not have the metallurgical imperfection such as segregation, loose, shrinkage cavity, and for follow-up hot-working good blank, and the method control are provided
System is simple, pollutes little, low production cost.
The purpose of the present invention is achieved through the following technical solutions：
The preparation method of this Aludirome ingot casting, comprises the following steps：
Step 1, by mass fraction 3-5% aluminium, 10-20% chromium, 75-87% iron are taken；
Step 2, iron and chromium are carried out under vacuum conditions melting, after iron and chromium fusing, then are added under ar gas environment
Aluminium, carries out pouring into ingot mould operation after aluminium is completely melt, an ingot casting is obtained after cooling；
Step 3, melting is carried out by an ingot using vacuum consumable smelting method, and secondary ingot casting is obtained after cooling；
Step 4, three meltings are carried out by secondary ingot using consutrode, and finished product ingot casting is obtained after cooling.
Further, of the invention the characteristics of, also resides in：
The purity of the aluminium wherein in step 1 is 99.99%, and the purity of chromium is 99.2%.
Wherein vacuum induction melting furnace carries out melting used in step 2.
Melting vacuum wherein in step 2 is 5.0 × 100～8.0 × 100Pa, monitor system is 40～60kw, is cooled down
Time is 0.5～1h.
Melting vacuum is 1.0 × 10 wherein in step 3-1～1.0 × 100Pa, melting electric current be 3.0～7.0KA, melting
Voltage is controlled in 23～30V, 1～2h of cool time.
Melting vacuum is 1.0 × 10 wherein in step 4-1～1.0 × 100Pa, melting electric current be 4.0～8.0KA, melting
Voltage is controlled in 25～35V, 2～4h of cool time.
Wherein this method also includes step 5, and after finished product ingot casting is stripped off the skin, detected a flaw rising head is cut off.
The invention has the beneficial effects as follows：Melting once is carried out using vacuum induction melting, plays a part of refining, can be obtained
To the uniform vacuum consumable smelting electrode of composition, then vacuum consumable smelting twice is carried out, further homogenizes alloy,
Meanwhile, vacuum consumable smelting can realize good feeding effect, it is to avoid the metallurgical imperfections such as segregation, loose, shrinkage cavity be produced, after being
Continuous hot-working and machining provide good blank.
Simultaneously the method for the present invention is combined two kinds of conventional method of smelting of vacuum induction melting and vacuum consumable smelting,
Purifying, homogenization the purpose of Aludirome ingot casting, and above two method of smelting technology maturation are realized, technique is certainly
Dynamicization degree is high, simple to operate, low cost, is capable of achieving the preparation of commercial scale ingot casting.
Specific embodiment
Below specific embodiment is described in further detail to the present invention：
The invention provides a kind of preparation method of Aludirome ingot casting, comprises the following steps：
Step 1, takes by mass percentage the aluminium of following metal material 3-5%, the chromium of 10-20%, and remaining is iron, the above into
The mass percent sum divided is 100%；Wherein the purity of aluminium is 99.99%, and the purity of chromium is 99.2%.
Step 2, iron and chromium are placed in vacuum induction melting furnace, are 5.0 × 10 in vacuum0～8.0 × 100Pa, melts
Downlink power is to melt iron and chromium under conditions of 40～60kw；Then argon gas is filled with vacuum induction melting furnace, in argon gas ring
Aluminium is added in border, carries out pouring into ingot mould operation after aluminium is completely melt, after cooling 0.5-1h an ingot casting is obtained.
Step 3, melting, melting vacuum are carried out using vacuum induction melting furnace using vacuum consumable smelting method to an ingot casting
Spend for 1.0 × 10-1～1.0 × 100Pa, melting electric current is 3.0～7.0KA, and melting voltage was controlled in 23～30V, cool time 1
Secondary ingot is obtained after～2h.
Step 4, three meltings are carried out to secondary ingot using vacuum induction melting furnace using consutrode, and melting vacuum is
1.0×10-1～1.0 × 100Pa, melting electric current is 4.0～8.0KA, and the control of melting voltage is obtained after 25～35V, cooling 2-4h
To finished ingot.
Step 5, finished ingot is stripped off the skin, detect a flaw after cut off rising head.
The present invention specific embodiment be：
Embodiment 1
Alloy cast ingot as a example by the Fe-3.0%Al-10.0%Cr alloys of 30kg is prepared, its preparation process is as follows：
Step 1 is taken respectively the aluminium that 0.9kg purity is 99.99% by quality, and 3kg purity is 99.2% chromium, 26.1kg's
Ingot iron.
Step 2, ingot iron and chromium are added in vacuum induction melting furnace, and its vacuum is 5.0 × 100Pa, melting
Power is 50kw so as to after being completely melt, aluminium is added thereto, and after aluminium is completely melt, carries out pouring into ingot mould operation, cooling
An ingot is obtained after 0.5h.
Step 3, an ingot is continuing with into vacuum induction melting furnace carries out melting, and the vacuum of melting is 1.0 × 10- 1Pa, melting electric current is 4.0KA, and the control of melting voltage obtains secondary ingot after 23V, cool time 1h.
Step 4, three meltings are carried out to secondary ingot using vacuum induction melting furnace using consutrode, and melting vacuum is
1.0×10-1Pa, melting electric current is 4.0KA, and the control of melting voltage obtains finished ingot after 28V, cooling 2h.
Step 5, finished ingot is stripped off the skin, detect a flaw after cut off rising head, finally obtain Aludirome ingot casting.
The Aludirome ingot casting obtained to step 5 carries out chemical composition analysis, its essential element aluminium, the testing result of chromium
It is as shown in the table：
Fe-3.0%Al-10.0%Cr alloy cast ingot contents (%)
| Position | Head | Tail |
| Aluminium content | 2.86 | 2.95 |
| Chromium content | 10.13 | 10.06 |
Embodiment 2
Alloy cast ingot as a example by the Fe-4.0%Al-13.0%Cr alloys of 100kg is prepared, its preparation process is as follows：
Step 1 is taken respectively the aluminium that 4kg purity is 99.99% by quality, and 13kg purity is 99.2% chromium, the industry of 83kg
Pure iron.
Step 2, ingot iron and chromium are added in vacuum induction melting furnace, and its vacuum is 6.0 × 100Pa, melting
Power is 40kw so as to after being completely melt, aluminium is added thereto, and after aluminium is completely melt, carries out pouring into ingot mould operation, cools down 1h
After obtain an ingot.
Step 3, ingot is continuing with into vacuum induction melting furnace carries out melting, and the vacuum of melting is 1.0 ×
100Pa, melting electric current is 6.0KA, and the control of melting voltage obtains secondary ingot after 23V, cool time 1.5h.
Step 4, three meltings are carried out to secondary ingot using vacuum induction melting furnace using consutrode, and melting vacuum is
1.0×100Pa, melting electric current is 8.0KA, and the control of melting voltage obtains finished ingot after 25V, cooling 4h.
Step 5, finished ingot is stripped off the skin, detect a flaw after cut off rising head, finally obtain Aludirome ingot casting.
The Aludirome ingot casting obtained to step 5 carries out chemical composition analysis, its essential element aluminium, the testing result of chromium
It is as shown in the table：
Fe-4.0%Al-13.0%Cr alloy cast ingot contents (%)
| Position | Head | Tail |
| Aluminium content | 3.85 | 3.92 |
| Chromium content | 13.10 | 13.22 |
Embodiment 3
Alloy cast ingot as a example by the Fe-4.5%Al-15.0%Cr alloys of 200kg is prepared, its preparation process is as follows：
Step 1 is taken respectively the aluminium that 9kg purity is 99.99% by quality, and 30kg purity is 99.2% chromium, the work of 161kg
Industry pure iron.
Step 2, ingot iron and chromium are added in vacuum induction melting furnace, and its vacuum is 8.0 × 100Pa, melting
Power is 60kw so as to after being completely melt, aluminium is added thereto, and after aluminium is completely melt, carries out pouring into ingot mould operation, cooling
An ingot is obtained after 40min.
Step 3, ingot is continuing with into vacuum induction melting furnace carries out melting, and the vacuum of melting is 0.8 ×
100Pa, melting electric current is 7KA, and the control of melting voltage obtains secondary ingot after 30V, cool time 2h.
Step 4, three meltings are carried out to secondary ingot using vacuum induction melting furnace using consutrode, and melting vacuum is
0.5×100Pa, melting electric current is 7.0KA, and the control of melting voltage obtains finished ingot after 35V, cooling 3h.
Step 5, finished ingot is stripped off the skin, detect a flaw after cut off rising head, finally obtain Aludirome ingot casting.
The Aludirome ingot casting obtained to step 5 carries out chemical composition analysis, its essential element aluminium, the testing result of chromium
It is as shown in the table：
Fe-4.5%Al-15.0%Cr alloy cast ingot contents (%)
| Position | Head | Tail |
| Aluminium content | 4.36 | 4.43 |
| Chromium content | 15.20 | 15.26 |
Embodiment 4
Alloy cast ingot as a example by the Fe-5%Al-20.0%Cr alloys of 100kg is prepared, its preparation process is as follows：
Step 1 is taken respectively the aluminium that 5kg purity is 99.99% by quality, and 25kg purity is 99.2% chromium, the industry of 70kg
Pure iron.
Step 2, ingot iron and chromium are added in vacuum induction melting furnace, and its vacuum is 7.0 × 100Pa, melting
Power is 45kw so as to after being completely melt, aluminium is added thereto, and after aluminium is completely melt, carries out pouring into ingot mould operation, cooling
An ingot is obtained after 50min.
Step 3, ingot is continuing with into vacuum induction melting furnace carries out melting, and the vacuum of melting is 0.8 ×
100Pa, melting electric current is 5KA, and the control of melting voltage obtains secondary ingot after 27V, cool time 80min.
Step 4, three meltings are carried out to secondary ingot using vacuum induction melting furnace using consutrode, and melting vacuum is
0.8×100Pa, melting electric current is 8.0KA, and the control of melting voltage obtains finished ingot after 31V, cooling 2.5h.
Step 5, finished ingot is stripped off the skin, detect a flaw after cut off rising head, finally obtain Aludirome ingot casting.
The Aludirome ingot casting obtained to step 5 carries out chemical composition analysis, its essential element aluminium, the testing result of chromium
It is as shown in the table：
Fe-5.0%Al-20.0%Cr alloy cast ingot contents (%)
| Position | Head | Tail |
| Aluminium content | 4.78 | 4.83 |
| Chromium content | 20.21 | 20.16 |
Claims (7)
1. a kind of preparation method of Aludirome ingot casting, it is characterised in that comprise the following steps：
Step 1, by mass fraction 3-5% aluminium is taken, 10-20% chromium, and remaining is iron；
Step 2, iron and chromium are carried out under vacuum conditions melting, after iron and chromium fusing, then add aluminium under ar gas environment, are treated
Aluminium carries out pouring into ingot mould operation after being completely melt, an ingot casting is obtained after cooling；
Step 3, melting is carried out by an ingot using vacuum consumable smelting method, and secondary ingot casting is obtained after cooling；
Step 4, three meltings are carried out by secondary ingot using consutrode, and finished product ingot casting is obtained after cooling.
2. the preparation method of Aludirome ingot casting according to claim 1, it is characterised in that the aluminium in the step 1
Purity be 99.99%, the purity of chromium is 99.2%.
3. the preparation method of Aludirome ingot casting according to claim 1, it is characterised in that used in the step 2
Vacuum induction melting furnace carries out melting.
4. the preparation method of Aludirome ingot casting according to claim 1, it is characterised in that molten in the step 2
Refining vacuum is 5.0 × 100～8.0 × 100Pa, monitor system is 40～60kw, and cool time is 0.5～1h.
5. the preparation method of Aludirome ingot casting according to claim 1, it is characterised in that melting in the step 3
Vacuum is 1.0 × 10-1～1.0 × 100Pa, melting electric current is 3.0～7.0KA, and the control of melting voltage is in 23～30V, cooling
1～2h of time.
6. the preparation method of Aludirome ingot casting according to claim 1, it is characterised in that melting in the step 4
Vacuum is 1.0 × 10-1～1.0 × 100Pa, melting electric current is 4.0～8.0KA, and the control of melting voltage is in 25～35V, cooling
2～4h of time.
7. the preparation method of the Aludirome ingot casting according to claim 1-6 any one, it is characterised in that also include
Step 5, after finished product ingot casting is stripped off the skin, detected a flaw rising head is cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611239320.8A CN106591684A (en) | 2016-12-28 | 2016-12-28 | Preparation method for iron, chromium and aluminum alloy ingot castings |
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| CN201611239320.8A CN106591684A (en) | 2016-12-28 | 2016-12-28 | Preparation method for iron, chromium and aluminum alloy ingot castings |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330373A (en) * | 2018-03-08 | 2018-07-27 | 盐城市鑫洋电热材料有限公司 | A kind of surface is rich in the ferrochrome aluminium alloy of aluminium |
| CN108441748A (en) * | 2018-03-08 | 2018-08-24 | 盐城市鑫洋电热材料有限公司 | A kind of preparation method of the Aludirome of high aluminium content |
| WO2019153772A1 (en) * | 2018-02-08 | 2019-08-15 | 盐城市鑫洋电热材料有限公司 | Method for increasing dimple fracture probability of iron-chromium-aluminum ternary alloy |
| CN111440993A (en) * | 2019-12-12 | 2020-07-24 | 广东省钢铁研究所 | Iron-chromium-aluminum alloy bar and preparation method thereof |
| CN112609132A (en) * | 2020-11-18 | 2021-04-06 | 江苏申源集团有限公司 | Production and preparation method of iron-chromium-aluminum electrothermal alloy wire rod |
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| JP2009172672A (en) * | 2008-01-28 | 2009-08-06 | Niigata Univ | Diffusion bonding method |
| CN103966511A (en) * | 2014-05-22 | 2014-08-06 | 哈尔滨工业大学 | Large-size gradient-aluminum-content iron-chromium-aluminum alloy sheet material, and preparation method and application thereof |
| CN104630603A (en) * | 2013-11-07 | 2015-05-20 | 丹阳智盛合金有限公司 | Iron-chromium-aluminum alloy manufacturing technology |
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2016
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009172672A (en) * | 2008-01-28 | 2009-08-06 | Niigata Univ | Diffusion bonding method |
| CN104630603A (en) * | 2013-11-07 | 2015-05-20 | 丹阳智盛合金有限公司 | Iron-chromium-aluminum alloy manufacturing technology |
| CN103966511A (en) * | 2014-05-22 | 2014-08-06 | 哈尔滨工业大学 | Large-size gradient-aluminum-content iron-chromium-aluminum alloy sheet material, and preparation method and application thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019153772A1 (en) * | 2018-02-08 | 2019-08-15 | 盐城市鑫洋电热材料有限公司 | Method for increasing dimple fracture probability of iron-chromium-aluminum ternary alloy |
| CN108330373A (en) * | 2018-03-08 | 2018-07-27 | 盐城市鑫洋电热材料有限公司 | A kind of surface is rich in the ferrochrome aluminium alloy of aluminium |
| CN108441748A (en) * | 2018-03-08 | 2018-08-24 | 盐城市鑫洋电热材料有限公司 | A kind of preparation method of the Aludirome of high aluminium content |
| WO2019169861A1 (en) * | 2018-03-08 | 2019-09-12 | 盐城市鑫洋电热材料有限公司 | Method for preparing high-aluminum content iron-chromium-aluminum alloy |
| CN111440993A (en) * | 2019-12-12 | 2020-07-24 | 广东省钢铁研究所 | Iron-chromium-aluminum alloy bar and preparation method thereof |
| CN111440993B (en) * | 2019-12-12 | 2021-06-18 | 广东省钢铁研究所 | Iron-chromium-aluminum alloy bar and preparation method thereof |
| CN112609132A (en) * | 2020-11-18 | 2021-04-06 | 江苏申源集团有限公司 | Production and preparation method of iron-chromium-aluminum electrothermal alloy wire rod |
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