CN107058772A - The manufacture method of 6101 aluminum alloy round ingot - Google Patents
The manufacture method of 6101 aluminum alloy round ingot Download PDFInfo
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- CN107058772A CN107058772A CN201710241052.1A CN201710241052A CN107058772A CN 107058772 A CN107058772 A CN 107058772A CN 201710241052 A CN201710241052 A CN 201710241052A CN 107058772 A CN107058772 A CN 107058772A
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- refining
- aluminum alloy
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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
- C22C1/026—Alloys based on aluminium
-
- 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
- B22D11/003—Aluminium 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
Abstract
The invention discloses a kind of manufacture method of 6101 aluminum alloy round ingot, it is related to aluminum alloy melt casting technique, this method includes dispensing, melting, melt temperature is 740 760 DEG C during melting, and refining temperature is 720 730 DEG C, and refinery gas is N2‑Cl2Mixed gas；20min 30min are stood after refining, with Al Ti C line bar online refinement crystal grain, the ceramic filter plate configured using 30/60ppi is removed the gred online；Aluminum alloy melt is discharged into distribution chute, big specification Gas Curtain Casting crystallizer is imported and is cast, casting temperature is 690 710 DEG C.The present invention provides high-quality aluminum alloy round ingot to produce the hot-short of high intensity with aluminum alloy junction component, so as to solve the problem of existing 6101 aluminium alloy extrusions extruding has low production efficiency and low yield rate.
Description
Technical field
The present invention relates to the manufacture method of aluminium alloy manufacturing technology field, especially 6101 aluminum alloy round ingot.
Background technology
It is the novel high speed vehicle material developed on the basis of alloy that 6101 aluminium alloys, which are 1980s 6000, is belonged to
Al-Mg-Si-type aluminum alloy, existing at a relatively high intensity, excellent processability, there is good welding performance, extensive use again
In on bullet train, subway train, double train and passenger-cargo automobile, be manufacture car body needed for thin wall hollow heavy section it is good
Good material.Because the production of 6101 extrudates is that a kind of technology content difficulty is high, production difficulty is big, the higher product of added value,
The section bar is extruded from 6101 billets, and billet quality quality directly affects the quality of extrudate, and the current country only has
Several Large size Aluminium processing enterprises can produce 6101 aluminium alloy large-size round ingot in batches, with China's track transportation industry
Develop rapidly, the need for the production capacity of such current section bar can not meet market.For above-mentioned situation, the present invention is developed
A kind of production technology of 6101 aluminum alloy round ingot, the aluminum alloy round ingot grain size that is produced using this method is good, slag inclusion amount is few, dredges
Looseness is few, and surface is smooth, segregation-free knurl, and lumber recovery is high, fullys meet the quality requirement of extruding high-strength aluminum alloy billet,
So as to provide high-quality aluminum alloy round ingot with aluminum alloy junction component to produce high performance hot-short, China's track traffic is met
The growth requirement of cause.
The content of the invention
It is an object of the invention to provide a kind of manufacture method of 6101 aluminum alloy round ingot, to produce high performance aluminium extrusion production
Product provide high-quality aluminum alloy round ingot, there is low production efficiency and finished product so as to solve existing 6101 aluminium alloy extrusions extruding
The problem of rate is low, meets the growth requirement of China's track traffic cause.To reach above-mentioned purpose, the technical solution adopted by the present invention
It is as follows：A kind of manufacture method of 6101 aluminum alloy round ingot, is comprised the steps of：
A, dispensing：Using 99.7% fine aluminium ingot, chalybeate, magnesium ingot and with grade aluminium alloy waste material as raw material carry out dispensing, it is described
Waste material accounts for raw and auxiliary material sum-rate for 15%-25%；
B, melting：Dispensing is put into smelting furnace and carries out melting, melt is stirred after solid material is completely melt, it is ensured that is closed
Golden bath composition and temperature homogeneity, are refined after stirring to melt, nonmetallic slag content, hydrogen content in reduction melt
And alkali metal content；
C, turn holding furnace refining：10min sampling analyses are stood after the completion of melting refining, treat that composition is suitable and temperature reaches 720 DEG C
When be transferred to after holding furnace and refined, 20min-30min is stood after refining；
D, online processing：With Al-Ti-C line bar online refinement crystal grain, carried out using the 30/60ppi ceramic filter plates configured online
Slagging-off；
E, casting：The obtained melts of step D are discharged into distribution chute, big specification Gas Curtain Casting crystallizer is imported and is cast.
In the technical scheme of the manufacture method of above-mentioned 6101 aluminum alloy round ingot, more specifically technical scheme is：Raw material are pressed
Following mass fraction carries out dispensing：Si：0.40%-0.60%, Fe：0.2-0.40%, Cu：＜ 0.05%, Mg：0.4%-0.9%,
Single impurity≤0.03%, adds up to impurity≤0.10%, remaining is Al.
Further, step B fusion process strictly controls smelting temperature to be 740 ~ 760 DEG C, and refining work is carried out to melt
Skill state modulator is as follows：Refining temperature is 720 DEG C -730 DEG C, and refining time is 40min, and refinery gas is N2-Cl2Mixed gas,
N2-Cl2Mixing ratio is 7：3.
Further, refinery practice state modulator is as follows in step C：Refining temperature is 700 DEG C -720 DEG C, and refining time is
15min, is dusted, jet is refined using nitrogen and refining agent.
Further, it is as follows using casting technological parameter in step E：Casting temperature：690-710 DEG C, casting speed：
50mm/min-56mm/min, cooling water flow：2000L/min-2400L/min, coolant water temperature≤30 DEG C.
By adopting the above-described technical solution, the present invention has the advantages that compared with prior art：
1st, refining time and refinery gas species ratio optimization, it is possible to decrease hydrogen content and nonmetallic slag inclusion, alkali metal content in stove,
Improve melt quality.
2nd, with Al-Ti-C line bar online refinement crystal grain, it is ensured that the grain size of ingot casting meets the requirements, while effectively suppressing ingot casting
Crackle tendency.This production to major diameter ingot casting is particularly significant.
3rd, cast using big specification Gas Curtain Casting crystallizer, improve surface quality, optimize casting speed, cooling
Water, casting temperature, it is to avoid brilliant and pile displacement the generation of casting crack, feather.
Embodiment
With reference to embodiment, the invention will be further described：
Embodiment 1
A kind of manufacture method of 6101 aluminum alloy round ingot, is comprised the steps of：
Dispensing：Using 99.7% fine aluminium ingot, chalybeate, magnesium ingot and with grade aluminium alloy waste material as raw material dispensing is carried out, it is described useless
It is 25% that material, which accounts for raw and auxiliary material sum-rate,.Dispensing chemical composition mass fraction is as follows：Si：0.40%-0.60%, Fe：0.2-
0.40%, Cu：0.05%, Mg：0.4%-0.9%, single impurity≤0.03% adds up to impurity≤0.10%, remaining is Al.
Melting：Dispensing is put into melting is carried out in smelting furnace, fusion process strictly controls smelting temperature to be 760 DEG C.Solid
Material is stirred after being completely melt to melt, it is ensured that alloy melt composition and temperature homogeneity, and melt is carried out after stirring
Refining, refining temperature is 730 DEG C, and refining time is 40min, and refinery gas is N2-Cl2Mixed gas, N2-Cl2Mixing ratio is 7:
3, reduce nonmetallic slag content, hydrogen content and alkali metal content in melt.
Turn holding furnace refining：10min sampling analyses are stood after the completion of melting refining, treat that composition is suitable and temperature reaches 720
DEG C when be transferred to after holding furnace and refined, refining temperature is 720 DEG C, and refining time is 15min, is carried out using nitrogen and refining agent
Dust, jet is refined, and 30min is stood after refining.
Online processing：With Al-Ti-C line bar online refinement crystal grain, carried out using the 30/60ppi ceramic filter plates configured
Line removes the gred.
Casting：Melt is discharged into distribution chute, big specification Gas Curtain Casting crystallizer is imported and is cast, specific founder
Skill parameter is as follows：Casting temperature：700 DEG C, casting speed：56mm/min, cooling water flow：2400L/min, coolant water temperature 25
℃。
Embodiment 2
A kind of manufacture method of 6101 aluminum alloy round ingot, is comprised the steps of：
Dispensing：Using 99.7% fine aluminium ingot, chalybeate, magnesium ingot and with grade aluminium alloy waste material as raw material dispensing is carried out, it is described useless
It is 15% that material, which accounts for raw and auxiliary material sum-rate,.Dispensing chemical composition mass fraction is as follows：Si：0.40%-0.60%, Fe：0.2-
0.40%, Cu：0.05%, Mg：0.4%-0.9%, single impurity≤0.03% adds up to impurity≤0.10%, remaining is Al.
Melting：Dispensing is put into melting is carried out in smelting furnace, fusion process strictly controls smelting temperature to be 740 DEG C.Solid
Material is stirred after being completely melt to melt, it is ensured that alloy melt composition and temperature homogeneity, and melt is carried out after stirring
Refining, refining temperature is 720 DEG C, and refining time is 40min, and refinery gas is N2-Cl2Mixed gas, N2-Cl2Mixing ratio is 7:
3, reduce nonmetallic slag content, hydrogen content and alkali metal content in melt.
Turn holding furnace refining：10min sampling analyses are stood after the completion of melting refining, treat that composition is suitable and temperature reaches 720
DEG C when be transferred to after holding furnace and refined, refining temperature is 700 DEG C DEG C, and refining time is 15min, is entered using nitrogen and refining agent
Row is dusted, jet refining, and 30min is stood after refining.
Online processing：With Al-Ti-C line bar online refinement crystal grain, carried out using the 30/60ppi ceramic filter plates configured
Line removes the gred.
Casting：Melt is discharged into distribution chute, big specification Gas Curtain Casting crystallizer is imported and is cast, specific founder
Skill parameter is as follows：Casting temperature：700 DEG C, casting speed：50mm/min, cooling water flow：2000L/min, coolant water temperature 25
℃。
Taking up an official post in finished product takes a test piece to carry out low power, mirco structure, surface quality detection, and testing result is as follows：
Macrostructure：Without the defects such as nonmetallic slag inclusion, crackle, feather crystalline substance are found on macro coupon, ingot casting grain size is less than
One-level.
Mirco structure：Grain-boundary crack defect is had no in high power photo, inside ingot rarefaction defect is less than one-level.
Surface quality detection：Surface-brightening, flawless, segregation-free knurl.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, but one of ordinary skill in the art is carried out to technical scheme
Modification or equivalent substitution, without departing from the objective and scope of technical solution of the present invention, it all should cover the right in the present invention
Among claimed range.
Claims (5)
1. a kind of manufacture method of 6101 aluminum alloy round ingot, it is characterised in that comprise the steps of：
A, dispensing：Using 99.7% fine aluminium ingot, chalybeate, magnesium ingot and with grade aluminium alloy waste material as raw material carry out dispensing, it is described
Waste material accounts for raw and auxiliary material sum-rate for 15%-25%；
B, melting：Dispensing is put into smelting furnace and carries out melting, melt is stirred after solid material is completely melt, it is ensured that is closed
Golden bath composition and temperature homogeneity, are tentatively refined after stirring to melt, nonmetallic slag content, hydrogen in reduction melt
Content and alkali metal content；
C, turn holding furnace refining：10min sampling analyses are stood after the completion of melting refining, treat that composition is suitable and temperature reaches 720 DEG C
When be transferred to after holding furnace and refined again, 20min-30min is stood after refining；
D, online processing：Al-Ti-C line bar online refinement crystal grain is used after refining, is entered using the 30/60ppi ceramic filter plates configured
The online slagging-off of row, obtains melt；
E, casting：The obtained melts of step D are discharged into distribution chute, big specification Gas Curtain Casting crystallizer is imported and is cast.
2. the manufacture method of 6101 aluminum alloy round ingot according to claim 1, it is characterised in that：Step A raw material are pressed
Following mass fraction carries out dispensing：Si：0.40%-0.60%, Fe：0.2%-0.40%, Cu：＜ 0.05%, Mg：0.4%-
0.9%, single impurity≤0.03% adds up to impurity≤0.10%, remaining is Al.
3. the manufacture method of 6101 aluminum alloy round ingot according to claim 1, it is characterised in that：Step B fusion process
It is strict to control smelting temperature to be 740-760 DEG C, preliminary refinery practice state modulator is carried out to melt as follows：Refining temperature is 720
DEG C -730 DEG C, refining time is 40min, and refinery gas is N2-Cl2Mixed gas, N2-Cl2Mixing ratio is 7：3.
4. the manufacture method of 6101 aluminum alloy round ingot according to claim 1, it is characterised in that：Refinery practice in step C
State modulator is as follows：Refining temperature is 700 DEG C -720 DEG C, and refining time is 15min, dusted using nitrogen and refining agent,
Jet is refined.
5. the manufacture method of 6101 aluminum alloy round ingot according to claim 1, it is characterised in that：Using casting in step E
Technological parameter is as follows：Casting temperature：690-710 DEG C, casting speed：50mm/min-56mm/min, cooling water flow：2000L/
Min-2400L/min, coolant water temperature≤30 DEG C.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107805723A (en) * | 2017-09-15 | 2018-03-16 | 广西平果铝合金精密铸件有限公司 | A kind of purifying aluminium alloy melt method |
| CN108220637A (en) * | 2017-12-29 | 2018-06-29 | 河南明泰科技发展有限公司 | 5A03 aluminium alloy cast ingots production method and 5A03 aluminium alloy cast ingots and application |
| CN108546850A (en) * | 2018-05-03 | 2018-09-18 | 广西南南铝加工有限公司 | A kind of production method of 6101 aluminum alloy plate materials of high conductivity |
| CN111168021A (en) * | 2019-12-11 | 2020-05-19 | 山东创新金属科技有限公司 | Casting process of aluminum alloy round ingot for forging hub |
| CN112342414A (en) * | 2020-11-06 | 2021-02-09 | 辽宁忠旺集团有限公司 | 6101B aluminium alloy casting production process |
| CN115233005A (en) * | 2022-08-04 | 2022-10-25 | 山东南山铝业股份有限公司 | Production method of circulation grade-keeping 3-series unscrewing cover material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107805723A (en) * | 2017-09-15 | 2018-03-16 | 广西平果铝合金精密铸件有限公司 | A kind of purifying aluminium alloy melt method |
| CN108220637A (en) * | 2017-12-29 | 2018-06-29 | 河南明泰科技发展有限公司 | 5A03 aluminium alloy cast ingots production method and 5A03 aluminium alloy cast ingots and application |
| CN108546850A (en) * | 2018-05-03 | 2018-09-18 | 广西南南铝加工有限公司 | A kind of production method of 6101 aluminum alloy plate materials of high conductivity |
| CN111168021A (en) * | 2019-12-11 | 2020-05-19 | 山东创新金属科技有限公司 | Casting process of aluminum alloy round ingot for forging hub |
| CN111168021B (en) * | 2019-12-11 | 2022-01-25 | 山东创新金属科技有限公司 | Casting process of aluminum alloy round ingot for forging hub |
| CN112342414A (en) * | 2020-11-06 | 2021-02-09 | 辽宁忠旺集团有限公司 | 6101B aluminium alloy casting production process |
| CN115233005A (en) * | 2022-08-04 | 2022-10-25 | 山东南山铝业股份有限公司 | Production method of circulation grade-keeping 3-series unscrewing cover material |
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Application publication date: 20170818 |