CN109518031A - A kind of aluminum melting process - Google Patents
A kind of aluminum melting process Download PDFInfo
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- CN109518031A CN109518031A CN201811602889.5A CN201811602889A CN109518031A CN 109518031 A CN109518031 A CN 109518031A CN 201811602889 A CN201811602889 A CN 201811602889A CN 109518031 A CN109518031 A CN 109518031A
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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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
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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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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Abstract
The present invention relates to aluminum alloy materials preparation technical field, in particular to a kind of aluminum melting process can be effectively relieved during alloy melting, add slag rate when alloy material, reduce workload and work difficulty in fusion process.Technical points include S1: aluminium ingot and silicon materials being added in smelting furnace, firing up fusing；S2: copper wire being added into smelting furnace, continues heating fusing；S3: after the completion of aluminium ingot all fusing, silicon materials and al-sr alloy is added；S4: it is finished to all material fusing, carries out operation of skimming for the first time；S5: after operation of skimming for the first time, molten aluminum is taken to survey ingredient, and add alloy material and ferrous bromide comprising respective element according to testing result；S6: when molten aluminum ingredient is met the requirements, refining agent is added, is refined；S7: the molten aluminum after refining is skimmed operation for the second time；S8: skimming for the second time after operation, and molten aluminum is mixed evenly, and can cast sample.
Description
Technical field
The invention belongs to aluminum alloy materials preparation technical field, in particular to a kind of aluminum melting process.
Background technique
Aluminium alloy ingots is to add other elements according to international standard or particular/special requirement using fine aluminium and recycling aluminium as raw material, such as:
Silicon (Si), copper (Cu), magnesium (Mg), iron (Fe) etc., improve fine aluminium in castability, chemically and physical deficiency is redeployed
Alloy is generally used for foundry industry.
The chemical element type for including required by the alloy product of different model or different purposes is different, every kind of element institute
Required standard content is also different.In the pilot process of practical melting, need to detect the molten aluminum ingredient in smelting furnace, root
The pure simple substance of required element or the intermediate alloy comprising respective element are added into furnace according to testing result.Ding Huaguo et al. is in 2014
Year is published in " light-alloy processing technology ", and Vol42's, No10 " tries to make a comment and substitute intermediate alloy and additive with benefit with pure metal
The necessity of material " it one the article pointed out, during aluminum alloy melt casting, the application cost for adding pure metal will be lower than using intermediate
The feed profile of alloy and metallic addition, meanwhile, for environmental pollution and realize that aluminium alloy standardizes quick ingredient, benefit
The considerations of material etc., adding pure metal is a kind of feed profile being most worthy to be popularized.
But found when actual production, pure element material such as silicon is added, the pure element material molten often occurs and is not thorough
The phenomenon that；And adding siliceous intermediate alloy then causes the dregginess in fusion process higher, the work for increasing melting operation is difficult
Degree and workload.
Summary of the invention
The object of the present invention is to provide a kind of aluminum melting process, can be effectively relieved during alloy melting, mend
Add slag rate when alloy material, reduces workload and work difficulty in fusion process.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of aluminum melting process, comprising the following steps:
S1: aluminium ingot and silicon materials are added in smelting furnace, firing up fusing；
S2: copper wire being added into smelting furnace, continues heating fusing；
S3: after the completion of aluminium ingot all fusing, silicon materials and al-sr alloy is added；
S4: it is finished to all material fusing, carries out operation of skimming for the first time；
S5: after operation of skimming for the first time, molten aluminum is taken to survey ingredient, and added according to testing result comprising respective element
Alloy material and ferrous bromide；
S6: when molten aluminum ingredient is met the requirements, refining agent is added, is refined；
S6: the molten aluminum after refining is skimmed operation for the second time；
S7: skimming for the second time after operation, and molten aluminum is mixed evenly, and can cast sample.
Further, in step S5, while adding ferrous bromide, chromium trioxide is added.
Further, melting in-furnace temperature is between 730-750 DEG C.
Further, in step S2, melting in-furnace temperature is between 730-750 DEG C.
Further, in step S3, melting in-furnace temperature is between 730-750 DEG C.
Further, in step S5, the mass ratio of ferrous bromide and alloy material is 1:10-15.
Further, the mass ratio of the chromium trioxide and ferrous bromide added is 1:5-8.
Further, temperature of aluminum liquid is controlled when casting in step S7 at 690-710 DEG C.
The beneficial effects of the present invention are:
The property of fusion enthalpy required for alloy molten and metallic element itself is closely related, especially the density of element,
Young's modulus, electric conductivity and thermal conductivity etc., and ferrous bromide can influence the electron cloud arrangement of metallic element at high temperature, adjustment
Electric conductivity, the final fusion temperature for changing alloying element.The present invention by while adding alloy material into molten aluminum, to
Ferrous bromide is wherein added, to reduce the fusion temperature of complex alloys element, promotes alloy molten, and finally reduce and skim
The slag amount arrived reduces the workload and work difficulty of melting operation.And occur when avoiding conventional selection pure element material
Feed supplement melts halfway phenomenon.
Meanwhile experimental result comparison is found, individually adds chromium trioxide to the generation of slag substantially without shadow in fusion process
It rings.But when chromium trioxide and ferrous bromide add simultaneously, aluminium alloy that control slag is told on significantly, and obtained
The tensile strength and yield strength of product etc. are higher, illustrate that ferrous bromide can act synergistically with chromium trioxide, reduce slag
Generation.
Specific embodiment
Below in conjunction with specific embodiment, technical solution of the present invention is clearly and completely described.Obviously, it is retouched
The embodiment stated is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work, belongs to the present invention
The range of protection.
A kind of aluminum melting process, specific smelting technology each embodiment as follows.
Embodiment 1
S1: A00 aluminium ingot 15000kg, 533 silicon materials 540kg are added in smelting furnace, and firing up fusing controls melting
In-furnace temperature is between 730-750 DEG C.Oxidizable small piece material such as silicon, iron etc. is added in furnace bottom when feeding intake, it is not oxidizable
Big part material such as aluminium ingot etc. is added in top.When silicon materials are added, charging scffold is placed on fire door, it is flat that metallic silicon is poured on charging
On platform, silicon is slowly pushed into aluminum water with rake, and is sufficiently stirred, is completely immersed in silicon in aluminum water, at interval of 30min in furnace
Molten aluminum is stirred, and whether confirmation metallic silicon is completely melt.
S2: after the fusing of part A00 aluminium ingot, when A00 aluminium ingot is unfused complete, copper wire 350kg is added into smelting furnace, makes
It is immersed in molten aluminum, continues heating fusing, makes melting in-furnace temperature between 730-750 DEG C.
S3: silicon materials 110kg and al-sr alloy 60kg is added after the completion of aluminium ingot all fusing in range estimation, maintains smelting furnace
Interior temperature is at 730-750 DEG C.
S4: it is finished to all material fusing, carries out operation of skimming for the first time.By slag bucket and melting fire door is emitted into when skimming
Mouthful, slag rake is provoked to 2m height with fork truck, is steadily entered in smelting furnace, is taken off outward from smelting furnace innermost end, slag is taken off
To table, then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S5: after operation of skimming for the first time, molten aluminum is taken to survey ingredient, and added according to testing result comprising respective element
Alloy material and ferrous bromide.It is insufficient that magnesium element content is detected in the present embodiment, adds 5052 almag 23kg, meanwhile, it presses
Ferrous bromide 2.3kg is added according to the ratio of mass ratio 1:10.
S6: detection molten aluminum ingredient is met the requirements, and controls melting in-furnace temperature at 690-720 DEG C, and purchase is added from Changshu City
The sodium-free refining agent 10kg of Hong Jia fluorine Science and Technology Ltd. carries out refining operation.Use powder blower by refining agent when refinery process
It sprays into smelting furnace, discharge tube does not stop to move in smelting furnace, it is ensured that covers entire smelting furnace.
S7: after refining, operation of being skimmed for the second time.By slag bucket and it is emitted into melting stove gate when skimming, with fork
Vehicle provokes slag rake to 2m height, steadily enters in smelting furnace, takes off outward from smelting furnace innermost end, slag is taken off to table,
Then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S8: skimming for the second time after operation, and molten aluminum is mixed evenly, and can cast sample, molten aluminum when control is cast
Temperature is between 690-710 DEG C.
Embodiment 2
S1: A00 aluminium ingot 14980kg, 533 silicon materials 520kg are added in smelting furnace, and firing up fusing controls melting
In-furnace temperature is between 730-750 DEG C.Oxidizable small piece material such as silicon, iron etc. is added in furnace bottom when feeding intake, it is not oxidizable
Big part material such as aluminium ingot etc. is added in top.When silicon materials are added, charging scffold is placed on fire door, it is flat that metallic silicon is poured on charging
On platform, silicon is slowly pushed into aluminum water with rake, and is sufficiently stirred, is completely immersed in silicon in aluminum water, at interval of 30min in furnace
Molten aluminum is stirred, and whether confirmation metallic silicon is completely melt.
S2: after the fusing of part A00 aluminium ingot, when A00 aluminium ingot is unfused complete, copper wire 360kg is added into smelting furnace, makes
It is immersed in molten aluminum, continues heating fusing, makes melting in-furnace temperature between 730-750 DEG C.
S3: residue silicon materials 115kg and al-sr alloy 65kg is added after the completion of aluminium ingot all fusing in range estimation, remains molten
In-furnace temperature is refined at 730-750 DEG C.
S4: it is finished to all material fusing, carries out operation of skimming for the first time.By slag bucket and melting fire door is emitted into when skimming
Mouthful, slag rake is provoked to 2m height with fork truck, is steadily entered in smelting furnace, is taken off outward from smelting furnace innermost end, slag is taken off
To table, then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S5: after operation of skimming for the first time, molten aluminum is taken to survey ingredient, and added according to testing result comprising respective element
Alloy material and ferrous bromide.It is insufficient that magnesium element content is detected in the present embodiment, adds 5052 almag 25kg, meanwhile, it presses
Ferrous bromide 2.08kg is added according to the ratio of mass ratio 1:12.
S6: detection molten aluminum ingredient is met the requirements, and controls melting in-furnace temperature at 690-720 DEG C, and purchase is added from Changshu City
The sodium-free refining agent 10kg of Hong Jia fluorine Science and Technology Ltd. carries out refining operation.Use powder blower by refining agent when refinery process
It sprays into smelting furnace, discharge tube does not stop to move in smelting furnace, it is ensured that covers entire smelting furnace.
S7: after refining, operation of being skimmed for the second time.By slag bucket and it is emitted into melting stove gate when skimming, with fork
Vehicle provokes slag rake to 2m height, steadily enters in smelting furnace, takes off outward from smelting furnace innermost end, slag is taken off to table,
Then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S8: skimming for the second time after operation, and molten aluminum is mixed evenly, and can cast sample, molten aluminum when control is cast
Temperature is between 690-710 DEG C.
Embodiment 3
S1: A00 aluminium ingot 15020kg, 533 silicon materials 535kg are added in smelting furnace, and firing up fusing controls melting
In-furnace temperature is between 730-750 DEG C.Oxidizable small piece material such as silicon, iron etc. is added in furnace bottom when feeding intake, it is not oxidizable
Big part material such as aluminium ingot etc. is added in top.When silicon materials are added, charging scffold is placed on fire door, it is flat that metallic silicon is poured on charging
On platform, silicon is slowly pushed into aluminum water with rake, and is sufficiently stirred, is completely immersed in silicon in aluminum water, at interval of 30min in furnace
Molten aluminum is stirred, and whether confirmation metallic silicon is completely melt.
S2: after the fusing of part A00 aluminium ingot, when A00 aluminium ingot is unfused complete, copper wire 330kg is added into smelting furnace, makes
It is immersed in molten aluminum, continues heating fusing, makes melting in-furnace temperature between 730-750 DEG C.
S3: residue silicon materials 105kg and al-sr alloy 70kg is added after the completion of aluminium ingot all fusing in range estimation, remains molten
In-furnace temperature is refined at 730-750 DEG C.
S4: it is finished to all material fusing, carries out operation of skimming for the first time.By slag bucket and melting fire door is emitted into when skimming
Mouthful, slag rake is provoked to 2m height with fork truck, is steadily entered in smelting furnace, is taken off outward from smelting furnace innermost end, slag is taken off
To table, then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S5: after operation of skimming for the first time, molten aluminum is taken to survey ingredient, and added according to testing result comprising respective element
Alloy material and ferrous bromide.It is insufficient that magnesium element content is detected in the present embodiment, adds 5052 almag 25kg, meanwhile, it presses
Ferrous bromide 1.67kg is added according to the ratio of mass ratio 1:15.
S6: detection molten aluminum ingredient is met the requirements, and controls melting in-furnace temperature at 690-720 DEG C, and purchase is added from Changshu City
The sodium-free refining agent 12kg of Hong Jia fluorine Science and Technology Ltd. carries out refining operation.Use powder blower by refining agent when refinery process
It sprays into smelting furnace, discharge tube does not stop to move in smelting furnace, it is ensured that covers entire smelting furnace.
S7: after refining, operation of being skimmed for the second time.By slag bucket and it is emitted into melting stove gate when skimming, with fork
Vehicle provokes slag rake to 2m height, steadily enters in smelting furnace, takes off outward from smelting furnace innermost end, slag is taken off to table,
Then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S8: skimming for the second time after operation, and molten aluminum is mixed evenly, and can cast sample, molten aluminum when control is cast
Temperature is between 690-710 DEG C.
Embodiment 4
S1: A00 aluminium ingot 15050kg, 533 silicon materials 550kg are added in smelting furnace, and firing up fusing controls melting
In-furnace temperature is between 730-750 DEG C.Oxidizable small piece material such as silicon, iron etc. is added in furnace bottom when feeding intake, it is not oxidizable
Big part material such as aluminium ingot etc. is added in top.When silicon materials are added, charging scffold is placed on fire door, it is flat that metallic silicon is poured on charging
On platform, silicon is slowly pushed into aluminum water with rake, and is sufficiently stirred, is completely immersed in silicon in aluminum water, at interval of 30min in furnace
Molten aluminum is stirred, and whether confirmation metallic silicon is completely melt.
S2: after the fusing of part A00 aluminium ingot, when A00 aluminium ingot is unfused complete, copper wire 330kg is added into smelting furnace, makes
It is immersed in molten aluminum, continues heating fusing, makes melting in-furnace temperature between 730-750 DEG C.
S3: residue silicon materials 95kg and al-sr alloy 50kg is added after the completion of aluminium ingot all fusing in range estimation, remains molten
In-furnace temperature is refined at 730-750 DEG C.
S4: it is finished to all material fusing, carries out operation of skimming for the first time.By slag bucket and melting fire door is emitted into when skimming
Mouthful, slag rake is provoked to 2m height with fork truck, is steadily entered in smelting furnace, is taken off outward from smelting furnace innermost end, slag is taken off
To table, then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S5: after operation of skimming for the first time, molten aluminum is taken to survey ingredient, and added according to testing result comprising respective element
Alloy material and chromium trioxide.It is insufficient that magnesium element content is detected in the present embodiment, adds 5052 almag 23kg, meanwhile, it mends
Add chromium trioxide 1.0kg.
S6: detection molten aluminum ingredient is met the requirements, and controls melting in-furnace temperature at 690-720 DEG C, and purchase is added from Changshu City
The sodium-free refining agent 10kg of Hong Jia fluorine Science and Technology Ltd. carries out refining operation.Use powder blower by refining agent when refinery process
It sprays into smelting furnace, discharge tube does not stop to move in smelting furnace, it is ensured that covers entire smelting furnace.
S7: after refining, operation of being skimmed for the second time.By slag bucket and it is emitted into melting stove gate when skimming, with fork
Vehicle provokes slag rake to 2m height, steadily enters in smelting furnace, takes off outward from smelting furnace innermost end, slag is taken off to table,
Then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S8: skimming for the second time after operation, and molten aluminum is mixed evenly, and can cast sample, molten aluminum when control is cast
Temperature is between 690-710 DEG C.
Embodiment 5
S1: A00 aluminium ingot 14900kg, 533 silicon materials 530kg are added in smelting furnace, and firing up fusing controls melting
In-furnace temperature is between 730-750 DEG C.Oxidizable small piece material such as silicon, iron etc. is added in furnace bottom when feeding intake, it is not oxidizable
Big part material such as aluminium ingot etc. is added in top.When silicon materials are added, charging scffold is placed on fire door, it is flat that metallic silicon is poured on charging
On platform, silicon is slowly pushed into aluminum water with rake, and is sufficiently stirred, is completely immersed in silicon in aluminum water, at interval of 30min in furnace
Molten aluminum is stirred, and whether confirmation metallic silicon is completely melt.
S2: after the fusing of part A00 aluminium ingot, when A00 aluminium ingot is unfused complete, copper wire 360kg is added into smelting furnace, makes
It is immersed in molten aluminum, continues heating fusing, makes melting in-furnace temperature between 730-750 DEG C.
S3: silicon materials 100kg and al-sr alloy 50kg is added after the completion of aluminium ingot all fusing in range estimation, maintains smelting furnace
Interior temperature is at 730-750 DEG C.
S4: it is finished to all material fusing, carries out operation of skimming for the first time.By slag bucket and melting fire door is emitted into when skimming
Mouthful, slag rake is provoked to 2m height with fork truck, is steadily entered in smelting furnace, is taken off outward from smelting furnace innermost end, slag is taken off
To table, then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S5: after operation of skimming for the first time, molten aluminum is taken to survey ingredient, and added according to testing result comprising respective element
Alloy material and chromium trioxide.It is insufficient that magnesium element content is detected in the present embodiment, adds 5052 almag 25kg, meanwhile, it mends
Add chromium trioxide 1.0kg.
S6: detection molten aluminum ingredient is met the requirements, and controls melting in-furnace temperature at 690-720 DEG C, and purchase is added from Changshu City
The sodium-free refining agent 12kg of Hong Jia fluorine Science and Technology Ltd. carries out refining operation.Use powder blower by refining agent when refinery process
It sprays into smelting furnace, discharge tube does not stop to move in smelting furnace, it is ensured that covers entire smelting furnace.
S7: after refining, operation of being skimmed for the second time.By slag bucket and it is emitted into melting stove gate when skimming, with fork
Vehicle provokes slag rake to 2m height, steadily enters in smelting furnace, takes off outward from smelting furnace innermost end, slag is taken off to table,
Then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S8: skimming for the second time after operation, and molten aluminum is mixed evenly, and can cast sample, molten aluminum when control is cast
Temperature is between 690-710 DEG C.
Embodiment 6
S1: A00 aluminium ingot 15000kg, 533 silicon materials 530kg are added in smelting furnace, and firing up fusing controls melting
In-furnace temperature is between 730-750 DEG C.Oxidizable small piece material such as silicon, iron etc. is added in furnace bottom when feeding intake, it is not oxidizable
Big part material such as aluminium ingot etc. is added in top.When silicon materials are added, charging scffold is placed on fire door, it is flat that metallic silicon is poured on charging
On platform, silicon is slowly pushed into aluminum water with rake, and is sufficiently stirred, is completely immersed in silicon in aluminum water, at interval of 30min in furnace
Molten aluminum is stirred, and whether confirmation metallic silicon is completely melt.
S2: after the fusing of part A00 aluminium ingot, when A00 aluminium ingot is unfused complete, copper wire 340kg is added into smelting furnace, makes
It is immersed in molten aluminum, continues heating fusing, makes melting in-furnace temperature between 730-750 DEG C.
S3: residue silicon materials 90kg and al-sr alloy 50kg is added after the completion of aluminium ingot all fusing in range estimation, remains molten
In-furnace temperature is refined at 730-750 DEG C.
S4: it is finished to all material fusing, carries out operation of skimming for the first time.By slag bucket and melting fire door is emitted into when skimming
Mouthful, slag rake is provoked to 2m height with fork truck, is steadily entered in smelting furnace, is taken off outward from smelting furnace innermost end, slag is taken off
To table, then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S5: after operation of skimming for the first time, molten aluminum is taken to survey ingredient, and added according to testing result comprising respective element
Alloy material and ferrous bromide and chromium trioxide.It is insufficient that magnesium element content is detected in the present embodiment, adds 5052 almags
23kg, meanwhile, ferrous bromide 2.3kg is added according to the ratio of mass ratio 1:10, according to chromium trioxide and ferrous bromide mass ratio
Chromium trioxide 0.46kg is added for the ratio of 1:5.
S6: detection molten aluminum ingredient is met the requirements, and controls melting in-furnace temperature at 690-720 DEG C, and purchase is added from Changshu City
The sodium-free refining agent 10kg of Hong Jia fluorine Science and Technology Ltd. carries out refining operation.Use powder blower by refining agent when refinery process
It sprays into smelting furnace, discharge tube does not stop to move in smelting furnace, it is ensured that covers entire smelting furnace.
S7: after refining, operation of being skimmed for the second time.By slag bucket and it is emitted into melting stove gate when skimming, with fork
Vehicle provokes slag rake to 2m height, steadily enters in smelting furnace, takes off outward from smelting furnace innermost end, slag is taken off to table,
Then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S8: skimming for the second time after operation, and molten aluminum is mixed evenly, and can cast sample, molten aluminum when control is cast
Temperature is between 690-710 DEG C.
Embodiment 7
S1: A00 aluminium ingot 15000kg, 533 silicon materials 540kg are added in smelting furnace, and firing up fusing controls melting
In-furnace temperature is between 730-750 DEG C.Oxidizable small piece material such as silicon, iron etc. is added in furnace bottom when feeding intake, it is not oxidizable
Big part material such as aluminium ingot etc. is added in top.When silicon materials are added, charging scffold is placed on fire door, it is flat that metallic silicon is poured on charging
On platform, silicon is slowly pushed into aluminum water with rake, and is sufficiently stirred, is completely immersed in silicon in aluminum water, at interval of 30min in furnace
Molten aluminum is stirred, and whether confirmation metallic silicon is completely melt.
S2: after the fusing of part A00 aluminium ingot, when A00 aluminium ingot is unfused complete, copper wire 340kg is added into smelting furnace, makes
It is immersed in molten aluminum, continues heating fusing, makes melting in-furnace temperature between 730-750 DEG C.
S3: residue silicon materials 100kg and al-sr alloy 60kg is added after the completion of aluminium ingot all fusing in range estimation, remains molten
In-furnace temperature is refined at 730-750 DEG C.
S4: it is finished to all material fusing, carries out operation of skimming for the first time.By slag bucket and melting fire door is emitted into when skimming
Mouthful, slag rake is provoked to 2m height with fork truck, is steadily entered in smelting furnace, is taken off outward from smelting furnace innermost end, slag is taken off
To table, then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S5: after operation of skimming for the first time, molten aluminum is taken to survey ingredient, and added according to testing result comprising respective element
Alloy material and ferrous bromide and chromium trioxide.It is insufficient that magnesium element content is detected in the present embodiment, adds 5052 almags
25kg, meanwhile, ferrous bromide 1.67kg is added according to the ratio of mass ratio 1:15, according to chromium trioxide and ferrous bromide mass ratio
Chromium trioxide 0.21kg is added for the ratio of 1:8.
S6: detection molten aluminum ingredient is met the requirements, and controls melting in-furnace temperature at 690-720 DEG C, and purchase is added from Changshu City
The sodium-free refining agent 15kg of Hong Jia fluorine Science and Technology Ltd. carries out refining operation.Use powder blower by refining agent when refinery process
It sprays into smelting furnace, discharge tube does not stop to move in smelting furnace, it is ensured that covers entire smelting furnace.
S7: after refining, operation of being skimmed for the second time.By slag bucket and it is emitted into melting stove gate when skimming, with fork
Vehicle provokes slag rake to 2m height, steadily enters in smelting furnace, takes off outward from smelting furnace innermost end, slag is taken off to table,
Then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S8: skimming for the second time after operation, and molten aluminum is mixed evenly, and can cast sample, molten aluminum when control is cast
Temperature is between 690-710 DEG C.
Embodiment 8
S1: A00 aluminium ingot 15000kg, 533 silicon materials 560kg are added in smelting furnace, and firing up fusing controls melting
In-furnace temperature is between 730-750 DEG C.Oxidizable small piece material such as silicon, iron etc. is added in furnace bottom when feeding intake, it is not oxidizable
Big part material such as aluminium ingot etc. is added in top.When silicon materials are added, charging scffold is placed on fire door, it is flat that metallic silicon is poured on charging
On platform, silicon is slowly pushed into aluminum water with rake, and is sufficiently stirred, is completely immersed in silicon in aluminum water, at interval of 30min in furnace
Molten aluminum is stirred, and whether confirmation metallic silicon is completely melt.
S2: after the fusing of part A00 aluminium ingot, when A00 aluminium ingot is unfused complete, copper wire 340kg is added into smelting furnace, makes
It is immersed in molten aluminum, continues heating fusing, makes melting in-furnace temperature between 730-750 DEG C.
S3: residue silicon materials 95kg and al-sr alloy 60kg is added after the completion of aluminium ingot all fusing in range estimation, remains molten
In-furnace temperature is refined at 730-750 DEG C.
S4: it is finished to all material fusing, carries out operation of skimming for the first time.By slag bucket and melting fire door is emitted into when skimming
Mouthful, slag rake is provoked to 2m height with fork truck, is steadily entered in smelting furnace, is taken off outward from smelting furnace innermost end, slag is taken off
To table, then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S5: after operation of skimming for the first time, molten aluminum is taken to survey ingredient, and added according to testing result comprising respective element
Alloy material and ferrous bromide and chromium trioxide.It is insufficient that magnesium element content is detected in the present embodiment, adds 5052 almags
25kg, meanwhile, ferrous bromide 1.92kg is added according to the ratio of mass ratio 1:13, according to chromium trioxide and ferrous bromide mass ratio
Chromium trioxide 0.32kg is added for the ratio of 1:6.
S6: detection molten aluminum ingredient is met the requirements, and controls melting in-furnace temperature at 690-720 DEG C, and purchase is added from Changshu City
The sodium-free refining agent 15kg of Hong Jia fluorine Science and Technology Ltd. carries out refining operation.Use powder blower by refining agent when refinery process
It sprays into smelting furnace, discharge tube does not stop to move in smelting furnace, it is ensured that covers entire smelting furnace.
S7: after refining, operation of being skimmed for the second time.By slag bucket and it is emitted into melting stove gate when skimming, with fork
Vehicle provokes slag rake to 2m height, steadily enters in smelting furnace, takes off outward from smelting furnace innermost end, slag is taken off to table,
Then slag is all grilled into slag bucket.To slag drying and it is cooled to room temperature, Weighing.
S8: skimming for the second time after operation, and molten aluminum is mixed evenly, and can cast sample, molten aluminum when control is cast
Temperature is between 690-710 DEG C.
Comparative example 1
Comparative example 1 the difference from embodiment 1 is that, ferrous bromide is not added in fusion process.
Comparative example 2
Comparative example 2 the difference from example 2 is that, ferrous bromide is not added in fusion process.
Detection method:
Molten aluminum before removing casting sample is detected.
It is detected according to GB/T 20975.12-2008 " aluminium and aluminum alloy chemically analysis method " in the molten aluminum that melting is completed
Each component content.
Sample mechanical property is detected according to GB/T 228.1-2010 " metal material stretching test ".
Slag rate %=(dry and be cooled to room temperature the slag quality sum)/(substance of addition in the oriented smelting furnace of institute
Quality sum) * 100
Each embodiment of table 1 prepares chemical element content testing result in sample
Each embodiment of table 2 prepares sample mechanical property and slag rate testing result
| Number | Tensile strength/MPa | Yield strength/MPa | Elongation at break/% | Slag rate/% |
| Embodiment 1 | 139.69 | 80 | 3.17 | 2.1 |
| Embodiment 2 | 146.68 | 88 | 2.63 | 3.0 |
| Embodiment 3 | 137.59 | 86 | 1.75 | 2.8 |
| Embodiment 4 | 117.96 | 72 | 2.27 | 5.4 |
| Embodiment 5 | 123.38 | 75 | 2.83 | 5.9 |
| Embodiment 6 | 149.54 | 98 | 3.15 | 1.2 |
| Embodiment 7 | 137.68 | 93 | 2.67 | 1.7 |
| Embodiment 8 | 152.38 | 98 | 2.78 | 1.2 |
| Comparative example 1 | 121.01 | 70 | 3.01 | 5.8 |
| Comparative example 2 | 119.82 | 68 | 2.89 | 6.3 |
According to above-mentioned experimental result it is found that according to technical solution provided by the present invention preparation molten aluminum or aluminium alloy material
Material, constituent content can reach standard substantially, meanwhile, obtained slag rate is substantially reduced.Comparative example 1 and comparative example 2 are adopted
With conventional melting technique, slag rate is higher, and respectively 5.8% and 6.3%.And embodiment 1 is to embodiment 3, in melting, Xiang Qi
Middle addition ferrous bromide, so that slag rate is substantially reduced, between 2.1%-3.0%.The technical side of embodiment 4 and embodiment 5
It is not added with ferrous bromide in case, only adds chromium trioxide, obtained slag rate is compared with comparative example 1 and comparative example 2, without relatively aobvious
The change of work.But in embodiment 6, embodiment 7 and embodiment 8, while ferrous bromide and chromium trioxide are added, as a result, it has been found that,
The obtained slag rate of the technical solution of this three embodiments is compared compared with embodiment 1 to embodiment 3, continues to reduce.Thus right
Than it is found that adding the generation of ferrous bromide and chromium trioxide to control slag simultaneously, effect is more apparent.And while adding bromination
The tensile strength and yield strength of product obtained by ferrous and chromium trioxide are also promoted.
Claims (8)
1. a kind of aluminum melting process, which comprises the following steps:
S1: aluminium ingot and silicon materials are added in smelting furnace, firing up fusing；
S2: copper wire being added into smelting furnace, continues heating fusing；
S3: after the completion of aluminium ingot all fusing, silicon materials and al-sr alloy is added；
S4: it is finished to all material fusing, carries out operation of skimming for the first time；
S5: after operation of skimming for the first time, molten aluminum is taken to survey ingredient, and add the alloy comprising respective element according to testing result
Material and ferrous bromide；
S6: when molten aluminum ingredient is met the requirements, refining agent is added, is refined；
S7: the molten aluminum after refining is skimmed operation for the second time；
S8: skimming for the second time after operation, and molten aluminum is mixed evenly, and can cast sample.
2. a kind of aluminum melting process according to claim 1, it is characterised in that: in step S5, add ferrous bromide
While, add chromium trioxide.
3. a kind of aluminum melting process according to claim 1, it is characterised in that: in step S1, melting in-furnace temperature
Between 730-750 DEG C.
4. a kind of aluminum melting process according to claim 3, it is characterised in that: in step S2, melting in-furnace temperature
Between 730-750 DEG C.
5. a kind of aluminum melting process according to claim 4, it is characterised in that: in step S3, melting in-furnace temperature
Between 730-750 DEG C.
6. a kind of aluminum melting process according to claim 1, it is characterised in that: in step S5, ferrous bromide and conjunction
The mass ratio of golden material is 1:10-15.
7. a kind of aluminum melting process according to claim 2, it is characterised in that: the chromium trioxide and protobromide added
The mass ratio of iron is 1:5-8.
8. a kind of aluminum melting process according to claim 1, it is characterised in that: control molten aluminum when casting in step S7
Temperature is at 690-710 DEG C.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110106377A (en) * | 2019-06-11 | 2019-08-09 | 天津圣金特汽车配件有限公司 | A kind of automobile engine bracket aluminum melting process |
| CN113606944A (en) * | 2021-07-20 | 2021-11-05 | 甘肃酒钢天成彩铝有限责任公司 | Method for controlling temperature of molten aluminum in electric heating smelting furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105838940A (en) * | 2016-04-25 | 2016-08-10 | 深圳市喜德盛自行车有限公司 | Aluminum alloy material used for manufacturing bicycle frame and production process for aluminum alloy material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105838940A (en) * | 2016-04-25 | 2016-08-10 | 深圳市喜德盛自行车有限公司 | Aluminum alloy material used for manufacturing bicycle frame and production process for aluminum alloy material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106377A (en) * | 2019-06-11 | 2019-08-09 | 天津圣金特汽车配件有限公司 | A kind of automobile engine bracket aluminum melting process |
| CN113606944A (en) * | 2021-07-20 | 2021-11-05 | 甘肃酒钢天成彩铝有限责任公司 | Method for controlling temperature of molten aluminum in electric heating smelting furnace |
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