CN108265202A - A kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots and preparation method thereof - Google Patents

A kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots and preparation method thereof Download PDF

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Publication number
CN108265202A
CN108265202A CN201810191757.1A CN201810191757A CN108265202A CN 108265202 A CN108265202 A CN 108265202A CN 201810191757 A CN201810191757 A CN 201810191757A CN 108265202 A CN108265202 A CN 108265202A
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alloy
ingot
aluminium
alloys
preparation
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Inventor
雷金琴
徐涛
路丽英
王英君
张云龙
王金花
吕丹
殷云霞
佟有志
刘世雷
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Northeast Light Alloy Co Ltd
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Northeast Light Alloy 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
    • C22C21/00—Alloys based on aluminium
    • 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
    • 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
    • C22C1/03—Making non-ferrous alloys by melting using master 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent

Abstract

A kind of Al 1.0Si 0.6Cu 0.75Mg 0.35Mn alloy cast ingots and preparation method thereof, the present invention relates to alloy cast ingot and preparation method thereof fields.The invention solves the element segregations and cracking technical problem in the poor mechanical property of existing 6111 aluminium alloy and big specification rectangle ingot casting process.The alloy cast ingot quality is made of 0.50%~1.0%, Zn of 0.10%~0.45%, Cu of 0.50%~1.0%, Mn of 0.7%~1.2%, Mg by by Si of 0.08%~0.15%, Ti of the Al of 0.02%~0.04%, Fe ﹤ 0.4% and surplus；Method：First, raw material is weighed；2nd, melt raw material, mixing；3rd, filter, four, casting.The present invention is on the basis of existing 6111 alloy, pass through Microalloying Effect, realize the molding of big size ingot-casting, simultaneously, the alloy is as soldering honeycomb panel core material, plank generates enough ageing strengthening effects after natrual ageing after high temperature brazing, hence it is evident that improves the intensity of honeycomb panel, meets user's requirement.Al 1.0Si 0.6Cu 0.75Mg 0.35Mn alloy cast ingots of the present invention are used to prepare soldering honeycomb panel, which is four layers of composite plate.

Description

A kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots and preparation method thereof
Technical field
The present invention relates to alloy cast ingot and preparation method thereof fields.
Background technology
Brazed aluminum honeycomb panel has that light, environmental protection is recyclable, node strength is high, compression strength is high, shock resistance, fire-retardant And the excellent performances such as sound insulation, there is wide application space and prospect, become a kind of brand-new material.Currently on the market it is existing with The aluminium honeycomb cellular structure member of brazing mode combination, panel core material is mostly 6061 and 6063 alloys, but using two kinds of alloys as core material The loss of strength of plank after high temperature brazing of honeycomb panel is big, and reinforcing effect is slow after natrual ageing, and intensity cannot Meet the requirement of user, have significantly after high temperature brazing to improve existing soldering honeycomb panel core alloy Ageing strengthening effect, improve the intensity of panel, provide a kind of novel soldering honeycomb panel core alloy and its system Preparation Method, the alloy are on the basis of existing 6111 alloy, by Microalloying Effect, put forward the intensity of its sheet alloy It is high.The ambient temperature mechanical properties of current 6111 alloy are：Tensile strength is 295.3MPa, yield strength 150.8MPa, elongation percentage It is 23.29%.
Invention content
The invention solves the elements in the poor mechanical property of existing 6111 aluminium alloy and big specification rectangle ingot casting process Segregation and cracking technical problem, and a kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots and its preparation side are provided Method.
A kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots, each element mass percent in the alloy cast ingot It is as follows：Si is 0.7%~1.2%, Mg is 0.50%~1.0%, Mn is 0.10%~0.45%, Cu is 0.50%~1.0%, Zn is 0.08%~0.15%, Ti is 0.02%~0.04%, Fe ﹤ 0.4% and surplus are Al.Wherein, single impurity≤ 0.05%th, add up to impurity≤0.15%.
The preparation method of a kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots, specifically by following step It is rapid to carry out：
First, according to each element mass percent：Si is 0.7%~1.2%, Mg is 0.50%~1.0%, Mn 0.10% ~0.45%, Cu is 0.50%~1.0%, Zn is 0.08%~0.15%, Ti is 0.02%~0.04%, Fe ﹤ 0.4% and remaining It measures as Al, weighs fine aluminium ingot, pure magnesium ingot, pure zinc ingot, aluminium silicon intermediate alloy, aluminium manganese intermediate alloy, aluminum bronze intermediate alloy and aluminium titanium Boron filament grain refiner；
2nd, it is closed among fine aluminium ingot, pure zinc ingot, aluminium silicon intermediate alloy, aluminium manganese intermediate alloy and the aluminum bronze weighed step 1 Gold is added in smelting furnace, is warming up to 740~760 DEG C, and fusing, stirring add in pure magnesium ingot, add in No. 1 coverture, melt after slagging-off 15min~30min is refined, then using Ar-Cl2Gaseous mixture is refined to hydrogen content≤0.25mL in every 100 grams of aluminium alloy melts, 30min is stood, obtains molten aluminium alloy；
3rd, the molten aluminium alloy for obtaining step 2 filters successively by the ceramic filter of 30ppi and 50ppi, then It is poured into crystallizer, and aluminium titanium boron wire grain refiner is inserted into chute simultaneously, uniformly fuse into molten aluminium alloy；
4th, fine aluminium ingot is separately taken again, aluminum melt is poured into shop fixtures on the pedestal in the crystallizer described in step 3 after fusing, so Afterwards under conditions of temperature is 710 DEG C~730 DEG C, hydraulic pressure is 0.045~0.20MPa, speed is 22~60mm/min, it is cast as The Al-1.0Si-0.6Cu-0.75Mg-0.35Mn that thickness is 420mm, width 1620mm, length are 1500mm~5500mm is closed Golden ingot casting.
Single impurity≤0.05% in Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots of the present invention adds up to impurity ≤ 0.15%.
The beneficial effects of the invention are as follows：Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloys of the present invention are as soldering honeycomb Structure panel core material, plank generates enough ageing strengthening effects after natrual ageing after high temperature brazing, hence it is evident that improves The intensity of honeycomb panel solves the problems, such as that existing honeycomb panel intensity is low, provides and a kind of prepares soldering honeycomb Panel core material Al-1.0Si-0.6Cu-0.75Mg-0.35Mn large-size aluminum alloy ingots and its manufacturing method.
The present invention, by Microalloying Effect, realizes the molding of big size ingot-casting, together on the basis of existing 6111 alloy When, the tensile strength of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn sheet alloys is 356.3MPa, yield strength is 234.5MPa, elongation percentage 22.7% have apparent ageing strengthening effect, and are used as soldering honeycomb panel core material, Plank also produces enough ageing strengthening effects after natrual ageing after high temperature brazing, hence it is evident that improves honeycomb panel Intensity meets user's requirement.
Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots of the present invention are used to prepare soldering honeycomb panel, should Panel is four layers of composite plate.
Description of the drawings
Fig. 1 is the macro morphology photo of alloy cast ingot prepared by embodiment one.
Specific embodiment
Technical solution of the present invention is not limited to the specific embodiment of act set forth below, further include each specific embodiment it Between arbitrary combination.
Specific embodiment one：A kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots of present embodiment, institute It is as follows to state each element mass percent in Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots：Si for 0.7%~ 1.2%th, Mg is 0.50%~1.0%, Mn is 0.10%~0.45%, Cu is 0.50%~1.0%, Zn be 0.08%~ 0.15%th, Ti is 0.02%~0.04%, Fe ﹤ 0.4% and surplus are Al.
Specific embodiment two：The present embodiment is different from the first embodiment in that：The Al-1.0Si-0.6Cu- Each element mass percent is as follows in 0.75Mg-0.35Mn alloy cast ingots：Si is 1.0%, Cu 0.60%, Mn 0.35%, Mg is 0.75%, Zn is 0.10~0.15%, Fe is 0.20~0.25%, Ti：0.025% and surplus be Al.It is other with it is specific Embodiment one is identical.
Specific embodiment three：A kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn described in specific embodiment one is closed The preparation method of golden ingot casting specifically carries out according to the following steps：
First, according to each element mass percent：Si is 0.7%~1.2%, Mg is 0.50%~1.0%, Mn 0.10% ~0.45%, Cu is 0.50%~1.0%, Zn is 0.08%~0.15%, Ti is 0.02%~0.04%, Fe ﹤ 0.4% and remaining It measures as Al, weighs fine aluminium ingot, pure magnesium ingot, pure zinc ingot, aluminium silicon intermediate alloy, aluminium manganese intermediate alloy, aluminum bronze intermediate alloy and aluminium titanium Boron filament grain refiner；
2nd, it is closed among fine aluminium ingot, pure zinc ingot, aluminium silicon intermediate alloy, aluminium manganese intermediate alloy and the aluminum bronze weighed step 1 Gold is added in smelting furnace, is warming up to 740~760 DEG C, and fusing, stirring add in pure magnesium ingot, add in No. 1 coverture, melt after slagging-off 15min~30min is refined, then using Ar-Cl2Gaseous mixture is refined to hydrogen content≤0.25mL in every 100 grams of aluminium alloy melts, 30min is stood, obtains molten aluminium alloy；
3rd, the molten aluminium alloy for obtaining step 2 filters successively by the ceramic filter of 30ppi and 50ppi, then It is poured into crystallizer, and aluminium titanium boron wire grain refiner is inserted into chute simultaneously, uniformly fuse into molten aluminium alloy；
4th, fine aluminium ingot is separately taken again, aluminum melt is poured into shop fixtures on the pedestal in the crystallizer described in step 3 after fusing, so Afterwards under conditions of temperature is 710 DEG C~730 DEG C, hydraulic pressure is 0.045~0.20MPa, speed is 22~60mm/min, it is cast as The Al-1.0Si-0.6Cu-0.75Mg-0.35Mn that thickness is 420mm, width 1620mm, length are 1500mm~5500mm is closed Golden ingot casting.
Specific embodiment four：Present embodiment is unlike specific embodiment three：It is closed among aluminium silicon in step 1 Gold is Al-22%Si alloys, and aluminium manganese intermediate alloy is Al-10%Mn alloys, and aluminum bronze intermediate alloy is Al-40%Cu alloys, aluminium Titanium intermediate alloy is Al-5%Ti alloys, and aluminium titanium boron wire grain refiner is Al-5%Ti-1%B alloys.Other and specific implementation Mode three is identical.
Specific embodiment five：Present embodiment is unlike specific embodiment three or four：No. 1 described in step 2 Coverture is 1# flux, and 1# flux is by weight percentage by 50%KCl, 26%NaCl and 24%NaAlF6Composition.Other and tool Body embodiment three or four is identical.
Specific embodiment six：Unlike one of present embodiment and specific embodiment three to five：No. 1 in step 2 The dosage of coverture is 0.4~0.6% of melt gross mass in smelting furnace.Other phases one of with specific embodiment three to five Together.
Specific embodiment seven：Unlike one of present embodiment and specific embodiment three to six：Ar- in step 2 Cl2The volume ratio of argon gas and chlorine is (31~33.5) in gaseous mixture: 1.It is other identical with one of specific embodiment three to six.
Specific embodiment eight：Unlike one of present embodiment and specific embodiment three to seven：Aluminium in step 3 The insertion speed of titanium boron wire grain refiner is 300mm/min.It is other identical with one of specific embodiment three to seven.
Specific embodiment nine：Unlike one of present embodiment and specific embodiment three to eight：It is cast in step 4 The Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloys that thickness is 420mm, width 1620mm, length are 5100mm is caused to cast Ingot.It is other identical with one of specific embodiment three to eight.
Beneficial effects of the present invention are verified using following embodiment：
Embodiment one：
A kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots of the present embodiment：
Each element mass percent is as follows in the Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots：Si is 1.0%th, Cu 0.60%, Mn 0.35%, Mg 0.75%, Zn 0.10%, Fe 0.20%, Ti：0.025% and surplus For Al.
A kind of preparation method of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots specifically presses following step It is rapid to carry out：
First, according to each element mass percent：Si is 1.0%, Mg 0.75%, Mn 0.35%, Cu 0.6%, Zn For 0.10%, Ti 0.025%, Fe be 0.20% and surplus is Al, weighs fine aluminium ingot, pure magnesium ingot, pure zinc ingot, the conjunction of aluminium silicon centre Gold, aluminium manganese intermediate alloy, aluminum bronze intermediate alloy and aluminium titanium boron wire grain refiner；Wherein, aluminium silicon intermediate alloy is Al-22%Si Alloy, aluminium manganese intermediate alloy are Al-10%Mn alloys, and aluminum bronze intermediate alloy is Al-40%Cu alloys, and aluminium titanium intermediate alloy is Al-5%Ti alloys, aluminium titanium boron wire grain refiner are Al-5%Ti-1%B alloys；
2nd, it is closed among fine aluminium ingot, pure zinc ingot, aluminium silicon intermediate alloy, aluminium manganese intermediate alloy and the aluminum bronze weighed step 1 Gold is added in smelting furnace, is warming up to 750 DEG C, and fusing, stirring add in pure magnesium ingot, add in No. 1 coverture, melting after slagging-off 30min, then using Ar-Cl2Gaseous mixture is refined to hydrogen content≤0.25mL in every 100 grams of aluminium alloy melts, stands 30min obtains molten aluminium alloy；No. 1 coverture is 1# flux, 1# flux by weight percentage by 50%KCl, 26%NaCl and 24%NaAlF6Composition；The dosage of No. 1 coverture is 0.5% of melt gross mass in smelting furnace；
3rd, the molten aluminium alloy for obtaining step 2 filters successively by the ceramic filter of 30ppi and 50ppi, then It is poured into crystallizer, and aluminium titanium boron wire grain refiner is inserted into chute simultaneously, uniformly fuse into molten aluminium alloy；Aluminium titanium boron The insertion speed of silk grain refiner is 300mm/min；
4th, fine aluminium ingot is separately taken again, aluminum melt is poured into shop fixtures on the pedestal in the crystallizer described in step 3 after fusing, so Afterwards under conditions of temperature is 710 DEG C, hydraulic pressure 0.045MPa, speed are 22mm/min, thickness is cast as 420mm, width The Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots for being 5100mm for 1620mm, length.
The macro morphology photo of alloy cast ingot manufactured in the present embodiment is as shown in Figure 1.Specification for 420mm × 1620mm × 5100mm, the ingot casting are rolled into the mechanical property that thickness is 1.5mm planks：Tensile strength is 356.3MPa, yield strength is 234.5MPa, elongation percentage 22.7%, intensity significantly improves, and wherein tensile strength improves 17%, and yield strength improves 31%.

Claims (9)

  1. A kind of 1. Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots, it is characterised in that the Al-1.0Si-0.6Cu- Each element mass percent is as follows in 0.75Mg-0.35Mn alloy cast ingots：Si is 0.7%~1.2%, Mg be 0.50%~ 1.0%th, Mn is 0.10%~0.45%, Cu is 0.50%~1.0%, Zn is 0.08%~0.15%, Ti be 0.02%~ 0.04%th, Fe ﹤ 0.4% and surplus are Al.
  2. 2. a kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots according to claim 1, it is characterised in that Each element mass percent is as follows in the Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots：Si is 1.0%, Cu is 0.60%th, Mn 0.35%, Mg 0.75%, Zn are 0.10~0.15%, Fe is 0.20~0.25%, Ti：0.025% and remaining It measures as Al.
  3. 3. a kind of preparation method of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots as described in claim 1, It is characterized in that this method specifically carries out according to the following steps：
    First, according to each element mass percent：Si is 0.7%~1.2%, Mg is 0.50%~1.0%, Mn be 0.10%~ 0.45%th, Cu is 0.50%~1.0%, Zn is 0.08%~0.15%, Ti is 0.02%~0.04%, Fe ﹤ 0.4% and surplus For Al, fine aluminium ingot, pure magnesium ingot, pure zinc ingot, aluminium silicon intermediate alloy, aluminium manganese intermediate alloy, aluminum bronze intermediate alloy and aluminium titanium boron are weighed Silk grain refiner；
    2nd, fine aluminium ingot, pure zinc ingot, aluminium silicon intermediate alloy, aluminium manganese intermediate alloy and aluminum bronze intermediate alloy that step 1 weighs are added Enter into smelting furnace, be warming up to 740~760 DEG C, fusing, stirring add in pure magnesium ingot, add in No. 1 coverture, melting after slagging-off 15min~30min, then using Ar-Cl2Gaseous mixture is refined to hydrogen content≤0.25mL in every 100 grams of aluminium alloy melts, quiet 30min is put, obtains molten aluminium alloy；
    3rd, the molten aluminium alloy for obtaining step 2 filters successively by the ceramic filter of 30ppi and 50ppi, then pours into a mould Into crystallizer, and aluminium titanium boron wire grain refiner is inserted into chute simultaneously, uniformly fused into molten aluminium alloy；
    4th, fine aluminium ingot is separately taken again, and aluminum melt is poured into shop fixtures on the pedestal in the crystallizer described in step 3, Ran Hou after fusing Under conditions of temperature is 710 DEG C~730 DEG C, hydraulic pressure is 0.045~0.20MPa, speed is 22~60mm/min, it is cast as thickness The Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloys casting for being 1500mm~5500mm for 420mm, width 1620mm, length Ingot.
  4. 4. a kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloys casting described in step 1 according to claim 3 The preparation method of ingot, it is characterised in that aluminium silicon intermediate alloy is Al-22%Si alloys in step 1, and aluminium manganese intermediate alloy is Al- 10%Mn alloys, aluminum bronze intermediate alloy are Al-40%Cu alloys, and aluminium titanium intermediate alloy is Al-5%Ti alloys, and aluminium titanium boron wire is brilliant Grain fining agent is Al-5%Ti-1%B alloys.
  5. 5. a kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloys casting described in step 1 according to claim 3 The preparation method of ingot, it is characterised in that No. 1 coverture described in step 2 is 1# flux, and 1# flux is by weight percentage by 50% KCl, 26%NaCl and 24%NaAlF6Composition.
  6. 6. a kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloys casting described in step 1 according to claim 3 The preparation method of ingot, it is characterised in that in step 2 the dosage of No. 1 coverture for melt gross mass in smelting furnace 0.4~ 0.6%.
  7. 7. a kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloys casting described in step 1 according to claim 3 The preparation method of ingot, it is characterised in that Ar-Cl in step 22The volume ratio of argon gas and chlorine is (31~33.5) in gaseous mixture: 1。
  8. 8. a kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloys casting described in step 1 according to claim 3 The preparation method of ingot, it is characterised in that the insertion speed of aluminium titanium boron wire grain refiner is 300mm/min in step 3.
  9. 9. a kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloys casting described in step 1 according to claim 3 The preparation method of ingot, it is characterised in that be cast as that thickness is 420mm, width 1620mm, length are 5100mm's in step 4 Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots.
CN201810191757.1A 2018-03-08 2018-03-08 A kind of Al-1.0Si-0.6Cu-0.75Mg-0.35Mn alloy cast ingots and preparation method thereof Pending CN108265202A (en)

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CN101831578A (en) * 2010-06-02 2010-09-15 东北轻合金有限责任公司 Aluminum-magnesium-erbium alloy cast ingot and preparation method thereof
CN102337435A (en) * 2011-10-31 2012-02-01 哈尔滨中飞新技术股份有限公司 Aluminum alloy pipe and manufacture method thereof
CN103205610A (en) * 2013-03-27 2013-07-17 成都阳光铝制品有限公司 6A02 aluminum alloy round ingot and production process thereof
CN104046859A (en) * 2014-06-26 2014-09-17 龙口市丛林铝材有限公司 Grain-refined extruded aluminum alloy tubular product with large wall thickness and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN101717882A (en) * 2009-12-28 2010-06-02 东北轻合金有限责任公司 Aluminum alloy bar for rail wagon body rivets
CN101831578A (en) * 2010-06-02 2010-09-15 东北轻合金有限责任公司 Aluminum-magnesium-erbium alloy cast ingot and preparation method thereof
CN102337435A (en) * 2011-10-31 2012-02-01 哈尔滨中飞新技术股份有限公司 Aluminum alloy pipe and manufacture method thereof
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109266888A (en) * 2018-12-03 2019-01-25 东北轻合金有限责任公司 A kind of 308 alloy cast ingot and its preparation method and application

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Application publication date: 20180710