CN109487111A - A kind of eutectic slag rate metal smelt technique - Google Patents
A kind of eutectic slag rate metal smelt technique Download PDFInfo
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- CN109487111A CN109487111A CN201811602842.9A CN201811602842A CN109487111A CN 109487111 A CN109487111 A CN 109487111A CN 201811602842 A CN201811602842 A CN 201811602842A CN 109487111 A CN109487111 A CN 109487111A
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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 eutectic slag rate metal smelt technique 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 copper 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 eutectic slag rate metal smelt technique.
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 eutectic slag rate metal smelt techniques, and alloy melting process can be effectively relieved
In, slag rate when alloy material is added, workload and work difficulty in fusion process are reduced.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of eutectic slag rate metal smelt technique, 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 copper 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.
Further, in step S5, while adding copper 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 mole of copper bromide and the mass ratio of alloy material are 1:13-20.
Further, the molar ratio of the chromium trioxide and copper bromide added is 1:3-8.
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 copper bromide can influence the electron cloud arrangement of metallic element at high temperature, adjustment is led
Electrical property, the final fusion temperature for changing alloying element.The present invention is by while adding alloy material into molten aluminum, Xiang Qi
Middle addition copper bromide promotes alloy molten to reduce the fusion temperature of complex alloys element, and finally reduces and skim
Slag amount reduces the workload and work difficulty of melting operation.And the feed supplement occurred when avoiding conventional selection pure element material
Melt 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 copper bromide add simultaneously, the aluminium alloy that control slag is told on significantly, and obtained is produced
The tensile strength and yield strength of product etc. are higher, illustrate that copper bromide can act synergistically with chromium trioxide, reduce the life of slag
At.Compared with the experimental result in the other application documents applied on the same day, additive is replaced in the application, but final right
The treatment effect of slag is not much different, and the generation of slag can effectively be inhibited by illustrating two kinds of substances.
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 eutectic slag rate metal smelt technique, specific smelting technology each embodiment as follows.
Embodiment 1
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 80kg 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 copper bromide.It is insufficient that iron content is detected in the present embodiment, adds 1J16 trade mark alfer 17kg, meanwhile,
Copper bromide is added according to the ratio that the mole of copper bromide and the mass ratio of alloy material are 1:13.
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 14090kg, 533 silicon materials 500kg 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: 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 copper bromide.It is insufficient that iron content is detected in the present embodiment, adds 1J16 trade mark alfer 21kg, meanwhile,
Copper bromide is added according to the ratio that the mole of copper bromide and the mass ratio of alloy material are 1:17.
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 at 710 DEG C or so.
Embodiment 3
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 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 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 copper bromide.It is insufficient that iron content is detected in the present embodiment, adds 1J16 trade mark alfer 25kg, meanwhile,
Copper bromide is added according to the ratio that the mole of copper bromide and the mass ratio of alloy material are 1:20.
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 at 710 DEG C or so.
Embodiment 4
S1: A00 aluminium ingot 14990kg, 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 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 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 chromium trioxide.It is insufficient that iron content is detected in the present embodiment, adds 1J16 trade mark alfer 23kg, together
When, 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 at 700 DEG C or so.
Embodiment 5
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 300kg 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 110kg 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 chromium trioxide.It is insufficient that iron content is detected in the present embodiment, adds 1J16 trade mark alfer 25kg, together
When, 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 at 690 DEG C or so.
Embodiment 6
S1: A00 aluminium ingot 15010kg, 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 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 55kg 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 copper bromide and chromium trioxide.It is insufficient that iron content is detected in the present embodiment, adds 1J16 trade mark alfer
23kg, meanwhile, copper bromide is added according to the ratio that the mole of copper bromide and the mass ratio of alloy material are 1:13, according to three oxygen
Change chromium and copper bromide molar ratio and adds chromium trioxide for the ratio of 1:3.
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 at 700 DEG C or so.
Embodiment 7
S1: A00 aluminium ingot 14900kg, 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 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 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 copper bromide and chromium trioxide.It is insufficient that iron content is detected in the present embodiment, adds 1J16 trade mark alfer
25kg, meanwhile, copper bromide is added according to the ratio that the mole of copper bromide and the mass ratio of alloy material are 1:16, according to three oxygen
Change chromium and copper bromide molar ratio and adds chromium trioxide 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 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 at 700 DEG C or so.
Embodiment 8
S1: A00 aluminium ingot 15000kg, 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 100kg 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 copper bromide and chromium trioxide.It is insufficient that iron content is detected in the present embodiment, adds 1J16 trade mark alfer
25kg, meanwhile, copper bromide is added according to the ratio that the mole of copper bromide and the mass ratio of alloy material are 1:20, according to three oxygen
Change chromium and copper bromide molar ratio and adds chromium trioxide 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 at 700 DEG C or so.
Comparative example 1
Comparative example 1 the difference from embodiment 1 is that, copper bromide is not added in fusion process.
Comparative example 2
Comparative example 2 the difference from example 2 is that, copper 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 | 138.39 | 81 | 3.27 | 2.7 |
| Embodiment 2 | 145.48 | 88 | 2.67 | 2.9 |
| Embodiment 3 | 136.89 | 85 | 1.65 | 2.8 |
| Embodiment 4 | 117.66 | 77 | 2.27 | 5.5 |
| Embodiment 5 | 123.38 | 75 | 2.93 | 5.9 |
| Embodiment 6 | 148.94 | 97 | 3.15 | 1.3 |
| Embodiment 7 | 137.68 | 93 | 2.64 | 1.7 |
| Embodiment 8 | 152.88 | 97 | 2.78 | 1.4 |
| Comparative example 1 | 121.21 | 75 | 3.11 | 5.9 |
| Comparative example 2 | 118.72 | 67 | 2.99 | 5.8 |
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 5.9% and 5.8%.And embodiment 1 is to embodiment 3, in melting, Xiang Qi
Middle addition copper bromide, so that slag rate is substantially reduced, 2.8% or so.Do not add in the technical solution of embodiment 4 and embodiment 5
Add copper bromide, only add chromium trioxide, obtained slag rate is compared with comparative example 1 and comparative example 2, without more significant change.
But in embodiment 6, embodiment 7 and embodiment 8, while copper bromide and chromium trioxide are added, as a result, it has been found that, this three implementations
The obtained slag rate of technical solution of example is compared compared with embodiment 1 to embodiment 3, is continued to reduce by a relatively large margin.Thus right
Than it is found that adding the generation of copper bromide and chromium trioxide to control slag simultaneously, effect is more apparent.And while adding copper bromide
It is also promoted with the tensile strength and yield strength of product obtained by chromium trioxide.
Claims (8)
1. a kind of eutectic slag rate metal smelt technique, 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 copper 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 eutectic slag rate metal smelt technique according to claim 1, it is characterised in that: in step S5, add bromine
While changing copper, chromium trioxide is added.
3. a kind of eutectic slag rate metal smelt technique according to claim 1, it is characterised in that: in step S1, smelting furnace
Interior temperature is between 730-750 DEG C.
4. a kind of eutectic slag rate metal smelt technique according to claim 3, it is characterised in that: in step S2, smelting furnace
Interior temperature is between 730-750 DEG C.
5. a kind of eutectic slag rate metal smelt technique according to claim 4, it is characterised in that: in step S3, smelting furnace
Interior temperature is between 730-750 DEG C.
6. a kind of eutectic slag rate metal smelt technique according to claim 1, it is characterised in that: in step S5, copper bromide
Mole and alloy material mass ratio be 1:13-20.
7. a kind of eutectic slag rate metal smelt technique according to claim 2, it is characterised in that: the chromium trioxide added with
The molar ratio of copper bromide is 1:3-8.
8. a kind of eutectic slag rate metal smelt technique according to claim 1, it is characterised in that: time control of casting in step S7
Temperature of aluminum liquid processed is at 690-710 DEG C.
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