CN105986141A - Aluminum alloy material achieving safe and environment-friendly production process and preparation method thereof - Google Patents
Aluminum alloy material achieving safe and environment-friendly production process and preparation method thereof Download PDFInfo
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- CN105986141A CN105986141A CN201610077408.8A CN201610077408A CN105986141A CN 105986141 A CN105986141 A CN 105986141A CN 201610077408 A CN201610077408 A CN 201610077408A CN 105986141 A CN105986141 A CN 105986141A
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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
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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Abstract
The invention discloses an aluminum alloy material achieving a safe and environment-friendly production process. The aluminum alloy material achieving the safe and environment-friendly production process is characterized by comprising, by mass, 45%-50% of aluminium scrap intermediate alloy powder, 7%-7.5% of silicon, 0.55%-0.6% of zinc, 0.2%-0.25% of magnesium, 0.1%-0.13% of titanium, 0.04%-0.05% of iron, 0.05%-0.7% of scandium, 0.7% of aluminum-nickel alloy powder and the balance aluminum. According to the aluminum alloy material achieving the safe and environment-friendly production process, because the aluminium scrap intermediate alloy powder and new aluminum are both used as base materials, the production cost is reduced under the condition of guaranteeing the product quality; due to optimization of the alloy ingredients and a scientific and reasonable treatment process, a self-made porous-structure refining agent is added and can adsorb gases in alloy liquid and decompose impurities in reguluses, and meanwhile the aluminum alloy material is safe, free of toxicity and environmentally friendly; and the product made of the aluminum alloy material achieving the safe and environment-friendly production process is good in mechanical performance, heat resistance and machinability, compact in internal organization and free of cracks, and operation is convenient by means of the manufacturing technique of the product.
Description
Technical field
The present invention relates to field of aluminum alloys, in a kind of production process safety and environmental protection aluminum alloy materials and
Preparation method.
Background technology
Cast aluminium alloy gold utensil has that specific volume is little, intensity is high, cast form is good and processing characteristics is excellent, the coefficient of expansion
The series of advantages such as little and good fluidity, are widely used in the industries such as automobile, Aeronautics and Astronautics and household electrical appliances.
Major part Cylinder-Block, cylinder cap uses high-strength aluminum alloy to produce the most substantially the most both at home and abroad, and full aluminum closes
The material of gold, alleviates tare simultaneously, also enhances the radiating effect of electromotor, improve electromotor work
Make efficiency, and the life-span is the most longer.From the point of view of fuel-economizing, cast aluminium electromotor advantage in terms of fuel-economizing is quite subject to
People pay close attention to.Because the weight of automobile often reduces, its fuel consumption can reduce 0.6%-1%.In order to reduce fuel
Consuming, and also to reduce the motor vehicle exhaust emission pollution to atmospheric environment, alleviating automotive dead weight is a weight
The measure wanted.Therefore, automobile casting is constantly replaced by lightweight aluminium foundry goods has become development trend.It is used as car
The material of engine cylinder-body cylinder cap mainly has domestic ZL101, ZL104, ZL702A alloy and the 328.0 of the U.S.,
The A-S5U3 of France, the A4CB aluminium alloy etc. of Japan.Although the alusil alloy of the tradition trade mark is in commonly used property
Can go up and can meet use requirement, but when part is in the stress state of complexity, often there is many not
In place of foot.Although as ZL101 alloying component is simple, but its mechanical property is the highest, is only used for requirement of strength not
High part；The thermostability of ZL104 is poor, and therefore the research and development to Cast aluminium alloy gold has important
Application value.
Aluminium alloy, in casting process, generally requires the compositions such as interpolation refining agent, alterant, coverture, runs into
The aluminium alloy of high temperature can produce a large amount of noxious substance, has strong impulse abnormal smells from the patient, pollutes environment, endangers work
People is physically and mentally healthy.
Summary of the invention
It is an object of the invention to provide aluminum alloy materials and the preparation side thereof of safety and environmental protection in a kind of production process
Method.Add homemade refining agent, nonhazardous, safety and environmental protection, porous material, be beneficial to form negative pressure, it is possible to fill
That divides reacts with gas in molten metal, thus reaches the effect of degassing；Material in regulus can be separated simultaneously
Matter, and decompose impurity in slag, makes regulus dryness and loose, easily takes off slagging-off, prevent molten metal secondary suction and
Oxidation.The internal fine and closely woven pore-free of the aluminum alloy materials produced, flawless, there is good intensity and processability
Energy.
In order to realize the purpose of the present invention, the present invention is implemented by below scheme:
The aluminum alloy materials of safety and environmental protection in a kind of production process, is made up of by mass percentage following each composition:
Aluminium scrap master alloyed powder 45-50, silicon 7-7.5, zinc 0.55-0.6, magnesium 0.2-0.25, titanium 0.1-0.13,
Ferrum 0.04-0.05, scandium 0.05-0.7, al-ni alloy powder 0.7-1, surplus are aluminum；
Described aluminium scrap master alloyed powder is prepared by the raw materials in: aluminium scrap bits 60-65, manganese 15-18,
Copper 10-12, chromium 6-8, zirconium 7-9, graphite powder 2-3, sodium chloride 1.5-2, cryolite powder 1-1.5；Preparation
Method is: aluminium scrap bits first with permanent magnet sucking-off ironwork therein, are then screened out wherein by (1) with ferrum mesh screen
Dust and sand, then with cleaning agent remove surface oil stain, be finally putting into oven for drying moisture stand-by；(2)
Aluminium scrap after being processed on surface adds in crucible electrical resistance furnace, be warming up to 850 DEG C until all melting, then lower the temperature
It is pressed into copper, manganese to when 760 DEG C-770 DEG C with bell jar, is incubated 30 minutes, continue adjusting furnace temperature to 740 DEG C
-750 DEG C, being pressed into chromium, zirconium, after stirring, insulation stands 20 minutes；(3) when furnace temperature reaches 730 DEG C,
Graphite powder, sodium chloride, cryolite powder are joined in molten metal, stands after stirring, be incubated standing 40
Minute；(4) after taking off removing dross, molten metal is poured in powder by gas-atomization equipment, be prepared as particle diameter 100
Powder below μm and get final product.
The aluminum alloy materials of safety and environmental protection in a kind of production process of the present invention, by the preparation of step in detail below
Become:
(1) all the components in addition to aluminium scrap master alloyed powder is each made fine powder standby, by all instruments and mould
Tool is carried out and heat treatment under the conditions of 250 DEG C, standby；
(2) aluminium powder is added in crucible electrical resistance furnace, be warming up to after aluminium powder is completely melt be brought rapidly up to 820 DEG C, so
With bell jar, silica flour it is pressed at twice aluminum liquid afterwards and is gently mixed, until all reducing rapidly furnace temperature after fusing,
It is pressed into aluminium scrap master alloyed powder when 760 DEG C-780 DEG C, is incubated 40-60 minute, continue adjusting furnace temperature to 730 DEG C
-740 DEG C, being pressed into remaining residual components, after stirring, insulation stands 30 minutes；
(3) the refining agent bell jar accounting for quality of molten metal 2-3% is pressed at molten metal intermediate altitude, slowly makees circumference
And become banking motion, and make molten metal uniformly roll, about 8-10 minute action time, after static 4 minutes, then
Carry out refine 6-8 minute by argon, stand 20 minutes, then skim, sample analysis after skimming；
(4), after aluminium alloy qualified for composition being stood 10-20 minute, aluminium alloy is poured in warmed-up mould,
Take out after cooling, employing T6 Technology for Heating Processing (process conditions are: solution treatment is 500 DEG C, 5.5 hours,
Ageing Treatment is 180 DEG C, 5 hours) carry out heat treatment, finally obtain product of the present invention.
The preparation method of the aluminum alloy materials of safety and environmental protection, described refine in a kind of production process of the present invention
Agent is prepared by the raw materials in: sodium fluoride 13-16, sodium nitrate 18-22, carbon dust 9-11, three oxidations
Two boron 9-10, potassium fluotitanate 15-18, sodium bicarbonate 10-13, hexafluoro sodium aluminate 2-4, sodium chloride 8-10,
Light fire brick 6-8；Preparation method is: (1) is by sodium fluoride, sodium nitrate, sodium chloride, potassium fluotitanate mixing
Put into after Jun Yun in high-temperature electric resistance furnace and melt, then cooled and solidified, then it is broken into 200 mesh mixed-powder A；(2)
Pulverizing in pulverizer is jointly put into remaining residual components in addition to sodium bicarbonate after broken for light fire brick
Become 200 mesh mixed powder B stand-by；(3) mixed-powder A is mixed with mixed powder B, add bicarbonate
Pelletize in extruding granulator is put into after sodium；(4) being dried in an oven 120-150 minute by granule, temperature controls
At 230-240 DEG C, take out after cooling and get final product.
The invention has the beneficial effects as follows: the present invention uses aluminium scrap master alloyed powder and new aluminum together as basis material
Material, it is ensured that reduce production cost while the quality of product；By optimized alloy composition and scientific and reasonable place
Science and engineering skill, adds homemade Porous refining agent, it is possible to the gas in absorption aluminium alloy, miscellaneous in decomposing metal slag
Matter, simultaneously safety non-toxic, environmentally friendly；The product that the present invention makes have good mechanicalness, thermostability,
Machinability, dense internal organization, flawless, production technology is convenient to operate.
Detailed description of the invention
Below by instantiation, the present invention is described in detail.
The aluminum alloy materials of safety and environmental protection in a kind of production process, is made up of by mass percentage following each composition:
Aluminium scrap master alloyed powder 45, silicon 7, zinc 0.55, magnesium 0.2, titanium 0.1, ferrum 0.04, scandium 0.05, aluminum nickel
Alloyed powder 0.7, surplus are aluminum；
Described aluminium scrap master alloyed powder is made up of the raw material of following weight portion (kilogram): aluminium scrap bits 60, manganese 15,
Copper 10, chromium 6, zirconium 7, graphite powder 2, sodium chloride 1.5, cryolite powder 1；Preparation method is: (1) will be useless
Aluminum bits, first with permanent magnet sucking-off ironwork therein, then screen out dust therein and sand with ferrum mesh screen, then
Remove the oil stain on surface with cleaning agent, be finally putting into oven for drying moisture stand-by；(2) giving up after surface being processed
Aluminum adds in crucible electrical resistance furnace, be warming up to 850 DEG C until all melting, when being then cooled to 760 DEG C-770 DEG C
Being pressed into copper, manganese with bell jar, be incubated 30 minutes, continuation adjusting furnace temperature, to 740 DEG C-750 DEG C, is pressed into chromium, zirconium,
After stirring, insulation stands 20 minutes；(3) when furnace temperature reaches 730 DEG C, by graphite powder, sodium chloride,
Cryolite powder joins in molten metal, stands after stirring, and insulation stands 40 minutes；(4) removing dross is taken off
After molten metal is poured in powder by gas-atomization equipment, be prepared as particle diameter powder below 100 μm and get final product.
The aluminum alloy materials of safety and environmental protection in a kind of production process of the present invention, by the preparation of step in detail below
Become:
(1) all the components in addition to aluminium scrap master alloyed powder is each made fine powder standby, by all instruments and mould
Tool is carried out and heat treatment under the conditions of 250 DEG C, standby；
(2) aluminium powder is added in crucible electrical resistance furnace, be warming up to after aluminium powder is completely melt be brought rapidly up to 820 DEG C, so
With bell jar, silica flour it is pressed at twice aluminum liquid afterwards and is gently mixed, until all reducing rapidly furnace temperature after fusing,
It is pressed into aluminium scrap master alloyed powder when 760 DEG C-780 DEG C, is incubated 40 minutes, continue adjusting furnace temperature to 730 DEG C
-740 DEG C, being pressed into remaining residual components, after stirring, insulation stands 30 minutes；
(3) the refining agent bell jar accounting for quality of molten metal 3% is pressed at molten metal intermediate altitude, slowly makees circumference also
Become banking motion, make molten metal uniformly roll, about 8 minutes action time, after static 4 minutes, then pass through argon
Gas carries out refine 6 minutes, stands 20 minutes, then skims, sample analysis after skimming；
(4) after aluminium alloy qualified for composition being stood 10 minutes, aluminium alloy is poured in warmed-up mould, cooling
Rear taking-up, employing T6 Technology for Heating Processing (process conditions are: solution treatment is 500 DEG C, 5.5 hours, time
Effect is processed as 180 DEG C, 5 hours) carry out heat treatment, finally obtain product of the present invention.
The preparation method of the aluminum alloy materials of safety and environmental protection, described refine in a kind of production process of the present invention
Agent is made up of the raw material of following weight portion (kilogram): sodium fluoride 13, sodium nitrate 18, carbon dust 9, three oxidation
Two boron 9, potassium fluotitanate 15, sodium bicarbonate 10, hexafluoro sodium aluminate 2, sodium chloride 8, light fire brick 6；
Preparation method is: (1) puts into high-temperature electric after sodium fluoride, sodium nitrate, sodium chloride, potassium fluotitanate mix homogeneously
Stove melts, then cooled and solidified, then be broken into 200 mesh mixed-powder A；(2) light fire brick is crushed
Jointly put in pulverizer with remaining residual components in addition to sodium bicarbonate afterwards and be ground into 200 mesh mixed powder B
Stand-by；(3) mixed-powder A is mixed with mixed powder B, after adding sodium bicarbonate, put into extruding granulator
Middle pelletize；(4) being dried in an oven by granule 120 minutes, temperature controls, at 230-240 DEG C, to take after cooling
Go out and get final product.
Product processing of the present invention is become the standard tensile specimen of a diameter of 6mm, carries out with ZL702A type aluminium alloy
Relatively, according to GB/T228-2002 " metal material tensile testing at ambient temperature " and GB/T4338-2006 " gold
Belong to material at high temperature stretching test method " test room-temperature property and 250 DEG C at high-temperature behavior, high-temperature behavior test
20 minutes, result such as following table:
Claims (3)
1. the aluminum alloy materials of safety and environmental protection in a production process, it is characterized in that, be made up of by mass percentage following each composition: aluminium scrap master alloyed powder 45-50, silicon 7-7.5, zinc 0.55-0.6, magnesium 0.2-0.25, titanium 0.1-0.13, ferrum 0.04-0.05, scandium 0.05-0.7, al-ni alloy powder 0.7-1, surplus are aluminum；
Described aluminium scrap master alloyed powder is prepared by the raw materials in: aluminium scrap bits 60-65, manganese 15-18, copper 10-12, chromium 6-8, zirconium 7-9, graphite powder 2-3, sodium chloride 1.5-2, cryolite powder 1-1.5；Preparation method is: aluminium scrap bits first with permanent magnet sucking-off ironwork therein, are then screened out dust therein and sand, then the oil stain with cleaning agent removing surface with ferrum mesh screen, are finally putting into oven for drying moisture stand-by by (1)；(2) aluminium scrap after being processed on surface adds in crucible electrical resistance furnace, be warming up to 850 DEG C until all melting, be then cooled to 760 DEG C-770 DEG C
Time be pressed into copper, manganese with bell jar, be incubated 30 minutes, continue adjusting furnace temperature to 740 DEG C-750 DEG C, be pressed into chromium, zirconium, after stirring insulation stand 20 minutes；(3) when furnace temperature reaches 730 DEG C, joining in molten metal by graphite powder, sodium chloride, cryolite powder, stand after stirring, insulation stands 40 minutes；(4) after taking off removing dross, molten metal is poured in powder by gas-atomization equipment, be prepared as particle diameter powder below 100 μm and get final product.
The aluminum alloy materials of safety and environmental protection in a kind of production process, it is characterised in that be prepared from by step in detail below:
(1) all the components in addition to aluminium scrap master alloyed powder is each made fine powder standby, all instruments and mould are carried out and heat treatment under the conditions of 250 DEG C, standby；
(2) aluminium powder is added in crucible electrical resistance furnace, it is warming up to after aluminium powder is completely melt be brought rapidly up to 820 DEG C, then with bell jar, silica flour it is pressed at twice aluminum liquid and is gently mixed, until reducing rapidly furnace temperature after all melting, it is pressed into aluminium scrap master alloyed powder when 760 DEG C-780 DEG C, is incubated 40-60 minute, continue adjusting furnace temperature to 730 DEG C-740 DEG C, being pressed into remaining residual components, after stirring, insulation stands 30 minutes；
(3) the refining agent bell jar accounting for quality of molten metal 2-3% is pressed at molten metal intermediate altitude, slowly make circumference and become banking motion, molten metal is made uniformly to roll, about 8-10 minute action time, after static 4 minutes, then carry out refine 6-8 minute by argon, stand 20 minutes, skim again, sample analysis after skimming；
(4) after aluminium alloy qualified for composition being stood 10-20 minute, aluminium alloy is poured in warmed-up mould, take out after cooling, (process conditions are: solution treatment is 500 DEG C to use T6 Technology for Heating Processing, 5.5 hour, Ageing Treatment is 180 DEG C, 5 hours) carry out heat treatment, finally obtain product of the present invention.
The preparation method of the aluminum alloy materials of safety and environmental protection in a kind of production process the most according to claim 2, it is characterized in that, described refining agent is prepared by the raw materials in: sodium fluoride 13-16, sodium nitrate 18-22, carbon dust 9-11, diboron trioxide 9-10, potassium fluotitanate 15-18, sodium bicarbonate 10-13, hexafluoro sodium aluminate 2-4, sodium chloride 8-10, light fire brick 6-8；Preparation method is: (1) melts putting into after sodium fluoride, sodium nitrate, sodium chloride, potassium fluotitanate mix homogeneously in high-temperature electric resistance furnace, then cooled and solidified, then is broken into 200 mesh mixed-powder A；(2) by jointly putting in pulverizer with remaining residual components in addition to sodium bicarbonate after broken for light fire brick, to be ground into 200 mesh mixed powder B stand-by；(3) mixed-powder A is mixed with mixed powder B, after adding sodium bicarbonate, put into pelletize in extruding granulator；(4) being dried in an oven 120-150 minute by granule, temperature controls, at 230-240 DEG C, take out and get final product after cooling.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435240A (en) * | 2016-11-24 | 2017-02-22 | 佛山市吉力达铝材科技有限公司 | Preparation method for refining agent |
| CN110964956A (en) * | 2019-12-30 | 2020-04-07 | 广东润盛科技材料有限公司 | Aluminum alloy material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831097A (en) * | 2015-04-14 | 2015-08-12 | 芜湖市鸿坤汽车零部件有限公司 | Good-weldability cylinder head aluminum alloy material and preparation method thereof |
| CN105063436A (en) * | 2015-07-27 | 2015-11-18 | 黄振东 | Silicon and aluminum alloy material used for novel cylinder cover and preparation method of silicon and aluminum alloy material |
-
2016
- 2016-02-01 CN CN201610077408.8A patent/CN105986141A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831097A (en) * | 2015-04-14 | 2015-08-12 | 芜湖市鸿坤汽车零部件有限公司 | Good-weldability cylinder head aluminum alloy material and preparation method thereof |
| CN105063436A (en) * | 2015-07-27 | 2015-11-18 | 黄振东 | Silicon and aluminum alloy material used for novel cylinder cover and preparation method of silicon and aluminum alloy material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435240A (en) * | 2016-11-24 | 2017-02-22 | 佛山市吉力达铝材科技有限公司 | Preparation method for refining agent |
| CN110964956A (en) * | 2019-12-30 | 2020-04-07 | 广东润盛科技材料有限公司 | Aluminum alloy material and preparation method thereof |
| CN110964956B (en) * | 2019-12-30 | 2021-03-09 | 广东润盛科技材料有限公司 | Aluminum alloy material and preparation method thereof |
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