CN1974815A - Compounded material for smelting flat 3104 aluminium alloy ingot and its material throwing process - Google Patents

Compounded material for smelting flat 3104 aluminium alloy ingot and its material throwing process Download PDF

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CN1974815A
CN1974815A CN 200610165066 CN200610165066A CN1974815A CN 1974815 A CN1974815 A CN 1974815A CN 200610165066 CN200610165066 CN 200610165066 CN 200610165066 A CN200610165066 A CN 200610165066A CN 1974815 A CN1974815 A CN 1974815A
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batching
alloy
aluminium alloy
fusing point
smelting
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CN100445406C (en
Inventor
朱永松
周新林
张忠玉
郭峰
胡俊杰
钟向文
曹鹏
王广稳
孙继陶
董江
龚海军
何建涛
郭刚
梁鲁清
蒋建平
张新奎
蔡有萍
张机琴
王世学
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Aluminum Corp of China Ltd
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Aluminum Corp of China Ltd
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Abstract

The present invention relates to aluminum and aluminum alloy casting technology, and is especially material for smelting flat 3104 aluminum alloy ingot and its material throwing process. The materials include Si 0.17-0.25 %, Fe 0.35-0.45 %, Cu 0.15-0.20 %, Mn 0.85-0.95 %, Mg 1.16-1.25 %, Zn 0.10 %, Ti 0.090-0.10 %, V 0.05 %, Pb not more than 0.01 %, As not more than 0.01 %, Ge not more than 0.01 %, and Al for the rest; and the materials are thrown from high smelting point one to lower smelting point one, that is in the Mn-Si-Fe-Cu-Mg order. Owing to the optimized components, the alloy has no Mn segregation, less cracking tendency, high Mg yield and stable quality. The present invention is suitable for various aluminum and aluminum alloy casting fields.

Description

3104 aluminium alloy flat bloom melting batching and feeding methods
Technical field
The present invention relates to a kind of aluminium and aluminium alloy casting industry, particularly relate to a kind of 3104 aluminium alloy flat bloom melting batching and feeding methods.
Background technology
In aluminium alloy flat bloom was produced, existing batching was mainly based on artificial batching, hand mixing.3104 alloying constituent complexity, the batching difficulty is big, and the one, manganese belongs to heavy metal, and segregation easily takes place, and the 2nd, the magnesium ingot scaling loss is big, and composition is wayward, causes magnesium elements not enough.The component segregation of manganese finally causes waste product because of chemical ingredients is defective.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiency that prior art exists, and a kind of each alloying element reasonably feeding sequence, 3104 aluminium alloy flat bloom melting batching and feeding methods of suitable batch temperature of batching value, science are provided.
The present invention's 3104 aluminium alloy flat bloom melting batchings and feeding method are achieved by following technical proposals: the present invention's 3104 aluminium alloy flat bloom melting batching and feeding methods, and described batching is: Si 0.17~0.25%; Fe 0.35~0.45%; Cu 0.15~0.20%; Mn 0.85~0.95%; Mg 1.16~1.25%; Zn 0.10%; Ti 0.090~0.10%; V 0.05%; Pb is not more than 0.01%; As is not more than 0.01%; Ge is not more than 0.01%; Surplus is Al; Release sequence is for to be followed successively by Mn-Si-Fe-Cu-Mg from the fusing point high alloy to the fusing point low-alloy.
The present invention's 3104 aluminium alloy flat bloom melting batchings and feeding method have following beneficial effect compared with prior art: owing to optimized food ingredient and each component content, the content of Mg increases, and Mg combines with Si and forms Mg 2The Si compound has reduced the crackle tendency thereby reduced the free quantity of Si; Fe content increases, and has generated some and has contained the impurity compound of FeSi Mn, makes the Mg of crystal boundary and dendrite circle 2Si measures minimizing, thereby reduces the red brittleness of alloy; Mn adds with the form of master alloy, and Mn enters aluminium liquid with compound form, and grain fineness number is little, dissolving easily, and be difficult for producing gravity segregation.3104 alloying ingredient smelting temperatures reach 760~780 ℃ in addition, make the higher Mn enhanced dissolution rate of fusing point, reduce the segregation of Mn.The present invention's every stove of preparing burden has reduced 60 minutes than former batching method, prepared burden the number of times decreased average 2 times, the aluminium scaling loss has on average reduced by 3%, the segregation of manganese thoroughly disappears, and crackle tendency significantly reduces, and the casting yield of magnesium brings up to 95% from original 92%, 20 yuan of production cost reductions per ton, the slab ingot constant product quality, yield rate improves 25%, has reduced labor strength simultaneously.The present invention's 3104 aluminium alloy flat bloom melting batchings and feeding method are applicable to various aluminium and aluminium alloy casting industry.
Embodiment
Below in conjunction with embodiment the present invention's 3104 aluminium alloy flat bloom melting batchings and feeding method technical scheme are further described.
The present invention's 3104 aluminium alloy flat bloom melting batchings and feeding method technical scheme are: described batching is: Si 0.17~0.25%; Fe 0.35~0.45%; Cu 0.15~0.20%; Mn 0.85~0.95%; Mg 1.16~1.25%; Zn 0.10%; Ti 0.090~0.10%; V 0.05%; Pb is not more than 0.01%; As is not more than 0.01%; Ge is not more than 0.01%; Surplus is Al; Release sequence is for to be followed successively by Mn-Si-Fe-Cu-Mg from the fusing point high alloy to the fusing point low-alloy.
Described batching is Si 0.20~0.22%; Fe 0.38~0.42%; Cu 0.17~0.18%; Mn 0.89~0.91%; Mg 1.23~1.25%; Zn 0.10%; Ti 0.090~0.098%; V 0.05%; Pb is not more than 0.01%; As is not more than 0.01%; Ge is not more than 0.01%; Surplus is Al; Release sequence is for to be followed successively by Mn-Si-Fe-Cu-Mg from the fusing point high alloy to the fusing point low-alloy.
The interior temperature of smelting furnace is not more than 780 ℃ during described feeding intake, and it is 20min that batching adds the back fusing time.
Described batching adds with the master alloy form.
Embodiment 1.
Get batching and be Si 0.20%; Fe 0.38%; Cu 0.17%; Mn 0.89%; Mg 1.23%; Zn 0.10%; Ti 0.090%; V 0.05%; Pb is not more than 0.01%; As is not more than 0.01%; Ge is not more than 0.01%; Surplus is Al; Add feeding sequence for be followed successively by Mn-Si-Fe-Cu-Mg from the fusing point high alloy to the fusing point low-alloy, all the other batchings are mainly pressed the alloy content descending order, and scaling loss is added by the big order in earlier little back.More than batching all adds with the master alloy form; The interior temperature of smelting furnace is 760 ℃ when feeding intake, and makes the higher Mn enhanced dissolution rate of fusing point, reduces the segregation of Mn; It is 20min that batching adds the back fusing time.
The three-phase alternating current that magnetic stirrer uses frequency transformer to produce, low-frequency current in the agitator coil produces a travelling-magnetic-field, this journey ripple magnetic field penetration stainless steel plate, and in al molten bath, produce whipping force, whipping force drives aluminium liquid, evenly aluminium liquid upper and lower surface temperature is impelled on molten intravital inclusion, the gas to float to bath surface, and the uniform alloy chemical ingredients reduces the segregation of Mn simultaneously.Magnesium ingot adds when preparing burden, and magnesium ingot is bundled to add to be positioned in high temperature resistant, the corrosion resistant Rotating Stainless Steel Cage add, and prevents the come-up oxidization burning loss of magnesium.
Embodiment 2.
Get batching and be Si 0.21%; Fe 0.40%; Cu 0.175%; Mn 0.90%; Mg 1.24%; Zn 0.10%; Ti 0.094%; V 0.05%; Pb is not more than 0.01%; As is not more than 0.01%; Ge is not more than 0.01%; Surplus is Al; Add feeding sequence for be followed successively by Mn-Si-Fe-Cu-Mg from the fusing point high alloy to the fusing point low-alloy, all the other batchings are mainly pressed the alloy content descending order, and scaling loss is added by the big order in earlier little back.More than batching all adds with the master alloy form; The interior temperature of smelting furnace is 770 ℃ when feeding intake, and makes the higher Mn enhanced dissolution rate of fusing point, reduces the segregation of Mn; It is 20min that batching adds the back fusing time.
The three-phase alternating current that magnetic stirrer uses frequency transformer to produce, low-frequency current in the agitator coil produces a travelling-magnetic-field, this journey ripple magnetic field penetration stainless steel plate, and in al molten bath, produce whipping force, whipping force drives aluminium liquid, evenly aluminium liquid upper and lower surface temperature is impelled on molten intravital inclusion, the gas to float to bath surface, and the uniform alloy chemical ingredients reduces the segregation of Mn simultaneously.Magnesium ingot adds when preparing burden, and magnesium ingot is bundled to add to be positioned in high temperature resistant, the corrosion resistant Rotating Stainless Steel Cage add, and prevents the come-up oxidization burning loss of magnesium.
Embodiment 3.
Get batching and be Si 0.22%; Fe 0.42%; Cu 0.18%; Mn 0.91%; Mg 1.25%; Zn 0.10%; Ti 0.098%; V 0.05%; Pb is not more than 0.01%; As is not more than 0.01%; Ge is not more than 0.01%; Surplus is Al; Add feeding sequence for be followed successively by Mn-Si-Fe-Cu-Mg from the fusing point high alloy to the fusing point low-alloy, all the other batchings are mainly pressed the alloy content descending order, and scaling loss is added by the big order in earlier little back.More than batching all adds with the master alloy form; The interior temperature of smelting furnace is 780 ℃ when feeding intake, and makes the higher Mn enhanced dissolution rate of fusing point, reduces the segregation of Mn; It is 20min that batching adds the back fusing time.
The three-phase alternating current that magnetic stirrer uses frequency transformer to produce, low-frequency current in the agitator coil produces a travelling-magnetic-field, this journey ripple magnetic field penetration stainless steel plate, and in al molten bath, produce whipping force, whipping force drives aluminium liquid, evenly aluminium liquid upper and lower surface temperature is impelled on molten intravital inclusion, the gas to float to bath surface, and the uniform alloy chemical ingredients reduces the segregation of Mn simultaneously.Magnesium ingot adds when preparing burden, and magnesium ingot is bundled to add to be positioned in high temperature resistant, the corrosion resistant Rotating Stainless Steel Cage add, and prevents the come-up oxidization burning loss of magnesium.

Claims (4)

1, a kind of 3104 aluminium alloy flat bloom melting batching and feeding methods, it is characterized in that: described batching is: Si 0.17~0.25%; Fe 0.35~0.45%; Cu 0.15~0.20%; Mn 0.85~0.95%; Mg 1.16~1.25%; Zn 0.10%; Ti 0.090~0.10%; V 0.05%; Pb is not more than 0.01%; As is not more than 0.01%; Ge is not more than 0.01%; Surplus is Al; Release sequence is for to be followed successively by Mn-Si-Fe-Cu-Mg from the fusing point high alloy to the fusing point low-alloy.
2,3104 aluminium alloy flat bloom melting batching and feeding methods according to claim 1, it is characterized in that: described batching is Si 0.20~0.22%; Fe 0.38~0.42%; Cu 0.17~0.18%; Mn 0.89~0.91%; Mg 1.23~1.25%; Zn 0.10%; Ti 0.090~0.098%; V 0.05%; Pb is not more than 0.01%; As is not more than 0.01%; Ge is not more than 0.01%; Surplus is Al; Release sequence is for to be followed successively by Mn-Si-Fe-Cu-Mg from the fusing point high alloy to the fusing point low-alloy.
3,3104 aluminium alloy flat bloom melting batching and feeding methods according to claim 1 is characterized in that: the interior temperature of smelting furnace is not more than 780 ℃ during described feeding intake, and it is 20min that batching adds the back fusing time.
4,3104 aluminium alloy flat bloom melting batching and feeding methods according to claim 1, it is characterized in that: described batching adds with the master alloy form.
CNB2006101650661A 2006-12-13 2006-12-13 Compounded material for smelting flat 3104 aluminium alloy ingot and its material throwing process Active CN100445406C (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104588606A (en) * 2014-12-31 2015-05-06 青海大学 Prevention device and method for longitudinal cracking in continuous casting of large-sized aluminum alloy flat ingot
CN105441746A (en) * 2015-11-29 2016-03-30 惠州卫生职业技术学院 Method for producing aluminum alloy ingot

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0617205A (en) * 1992-06-30 1994-01-25 Sky Alum Co Ltd Manufacture of aluminum alloy sheet for di can
JP3550259B2 (en) * 1996-10-11 2004-08-04 古河スカイ株式会社 Aluminum alloy plate for DI can body excellent in high-speed ironing formability and method for producing the same
EP1158063A1 (en) * 2000-05-22 2001-11-28 Norsk Hydro A/S Corrosion resistant aluminium alloy
JP4001007B2 (en) * 2002-12-19 2007-10-31 日本軽金属株式会社 Aluminum alloy plate for rectangular cross-section battery container
JP2006283113A (en) * 2005-03-31 2006-10-19 Furukawa Sky Kk Aluminum alloy sheet for drink can barrel, and method for producing the same
CN100460544C (en) * 2005-09-29 2009-02-11 郑州大学 Deformed Al-Mn series alloy and preparing process thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104588606A (en) * 2014-12-31 2015-05-06 青海大学 Prevention device and method for longitudinal cracking in continuous casting of large-sized aluminum alloy flat ingot
CN104588606B (en) * 2014-12-31 2016-09-07 青海大学 A kind of large aluminum alloy slab ingot casts preventing mean and the method for longitudinal cracking continuously
CN105441746A (en) * 2015-11-29 2016-03-30 惠州卫生职业技术学院 Method for producing aluminum alloy ingot

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