CN105483390B - A kind of aluminium scrap bits regeneration short route manufacturing process - Google Patents
A kind of aluminium scrap bits regeneration short route manufacturing process Download PDFInfo
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- CN105483390B CN105483390B CN201610057672.5A CN201610057672A CN105483390B CN 105483390 B CN105483390 B CN 105483390B CN 201610057672 A CN201610057672 A CN 201610057672A CN 105483390 B CN105483390 B CN 105483390B
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- aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/005—Separation by a physical processing technique only, e.g. by mechanical breaking
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0007—Preliminary treatment of ores or scrap or any other metal source
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
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- Manufacture And Refinement Of Metals (AREA)
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Abstract
The present invention provides a kind of aluminium scrap bits regeneration short route manufacturing process, and aluminium scrap bits are put into disintegrating machine first, aluminium scrap bits are crushed, and heavier debris during aluminium scrap is considered to be worth doing is thrown away；Then, drying removal of impurities is carried out to the aluminium scrap bits handled by crusher in crushing, removes the impurity such as the greasy dirt and water on aluminium skimmings surface；Then, the aluminium scrap bits after drying removal of impurities are put into inside high-pressure rotary companding recipient, and the recipient is heated；Afterwards, rotary press is started, carrying out rotary compression to the aluminium scrap bits in recipient extends big ram pressing；Finally product is cooled down；The present invention realizes from aluminium scrap bits and is directly processed into Al-alloy products, overcome in traditional aluminium scrap bits removal process the problems such as aluminium skimmings scaling loss is high, efficiency is low, seriously polluted, the links such as melting in conventional art, ingot casting are eliminated, it is short with flow, the advantages of energy-conserving and environment-protective.
Description
Technical field
The invention belongs to aluminium scrap bits regeneration shaping processing technique field, more particularly, to using large plastometric set method to useless
Aluminium skimmings carry out the method for reclaiming reprocessing shaping, belong to non ferrous metal and their alloy waste recovery and reshape method, specifically one
Plant aluminium scrap bits regeneration short route manufacturing process.
Technical background
Aluminium alloy produces a large amount of scrap in process.In recent years, wheel hub production center in the world's is shifted to China, domestic
Automotive hub yield grows at top speed.Domestic automobile wheel hub yield is about 2.08 hundred million within 2014, by car aluminium alloy wheel hub 10Kg/
Part, allowance 10% is calculated, and 2014 are only the aluminium skimmings of aluminium alloy wheel hub machining generation just up to 20.8 ten thousand tons.On 2015
Half a year China's passenger vehicle engine yield is about 976.3 ten thousand, and according to engine cylinder-body blank 30Kg/ platforms, allowance 10% is counted
Calculate, upper half in 2015 is only the aluminium skimmings of engine cylinder-body machining generation up to 30,000 tons.
At present, aluminium alloy scrap is reclaimed mainly by remelting process, vacuum distillation method and electrolytic refining process.Vacuum distillation method
With electrolytic refining process complex process, strictly, cost is high for technology controlling and process.Remelting process reclaim aluminium waste mainly using rotary furnace, shaft furnace,
The mode reclaimings such as reverberatory furnace, dry type stove and electric induction furnace.Aluminium scrap is in reflow process, and oxidation is serious, and loss amount is big,
Organic efficiency is low.In order to solve above-mentioned problem, just actively inquire into the world, the aluminium alloy scrap of the more reasonable science of exploitation regenerates
Technology.Direct reclaiming can be prevented effectively from the shortcoming in reflow process, and short with flow, and energy consumption is low, waste gas discharge
Few the advantages of, get more and more people's extensive concerning.Direct Regeneration method, which reclaims aluminium alloy scrap, reduces process, improves efficiency, drops
Low cost, has the advantages that energy-conserving and environment-protective.
The content of the invention
It is an object of the invention to provide a kind of aluminium scrap bits regeneration short route manufacturing process, the aluminium scrap by pretreatment is considered to be worth doing
Be compressed-large plastometric set is extended, it is combined together waste material by metallurgical binding aluminium scrap bits in deformation process, then
Extrusion molding is carried out to it, wire rod, section bar and tubing is prepared.
The present invention uses following technical scheme to achieve these goals：
A kind of aluminium scrap bits regeneration short route manufacturing process：
Aluminium scrap bits are put into disintegrating machine by the first step, aluminium scrap bits are crushed, while debris heavier during aluminium scrap is considered to be worth doing is got rid of
Go out；
Second step, the aluminium scrap bits handled by crusher in crushing are put into drying knot screen and carry out drying removal of impurities, are gone
Except aluminium scrap considers the impurity such as the greasy dirt and water on surface to be worth doing；Drying knot screen is inclined revolving burner, and inclination angle is 30-45 °, rotation speed
Spend for 1-10r/min, drying removal of impurities temperature is 100-500 DEG C, drying is 10-120min except miscellaneous time；
Aluminium scrap bits after drying removal of impurities are put into high-pressure rotary compression-expending extrusion cylinder inside by the 3rd step, and to this
Recipient is heated, and heating-up temperature is 100-600 DEG C, and the heat time is 10-100min.
4th step, starts rotary press, to high-pressure rotary compression, and-the aluminium scrap bits in expending extrusion cylinder are compressed-expands
Open up big plastic extrusion, rotary press carries out rotational shear deformation to aluminium scrap bits first, aluminium scrap bits enter high-pressure rotary compression-
Column aluminium block is compressed to before the compressing hole of expending extrusion cylinder, aluminium scrap bits are internal to there occurs larger deformation, with rotation
The pressure of forcing press is continuously increased, and the aluminium block for being pressed into column enters the compressing hole of high-pressure rotary compression-expending extrusion cylinder, aluminium block
Inside proceeds compression, and the aluminium block diameter of column further reduces, and the column aluminium block that diameter reduces enters from compressing hole
Chamber is expanded, now the diameter increase of aluminium block, installs shaping dies, aluminium block is formed using shaping dies in extended cavity outlet；
In forming process, high-pressure rotary compression-expending extrusion cylinder a diameter of 20-400mm, a diameter of 10-300mm of compressing hole, extension
Bore dia is 20-1000mm；Shaping dies can be wire rod, section bar and tubing etc..
5th step, aluminum products carry out on-line cooling by cooling system, and cooling uses water-cooling pattern, and cooling water flow is 1-
20L/min。
Beneficial effects of the present invention are：
The present invention is pre-processed to aluminium alloy scrap first, and aluminium scrap bits are loaded into disintegrating machine, aluminium skimmings crushed, together
When debris heavier in aluminium skimmings is thrown away, being directly entered drying unit by broken aluminium skimmings carries out drying heating, makes in aluminium skimmings
Greasy dirt and the evaporation of the debris such as water, so as to prepare the higher aluminium skimmings of degree of purity；Then the aluminium scrap by pretreatment is pressed
Contraction-expansion opens up large plastometric set, and realization is directly shaped from aluminium scrap；Advantage of the present invention is as follows：
（1）The present invention realizes from aluminium scrap bits and is directly processed into Al-alloy products, eliminates melting in conventional art, ingot casting
Etc. link, have the advantages that flow is short, energy consumption is low, energy-conserving and environment-protective.
（2）Instant invention overcomes the problem such as aluminium skimmings scaling loss in traditional aluminium skimmings removal process is high, efficiency is low, seriously polluted, have
Effect adds the utilization rate of aluminium skimmings, has saved the aluminium energy.
（3）Aluminum products prepared by the present invention, consistency is high, and structure property is excellent.
Brief description of the drawings
Fig. 1 is a kind of aluminium scrap bits regeneration short route manufacturing process schematic diagram of the invention；
In figure：1st, aluminium scrap is considered to be worth doing；2nd, disintegrating machine；3rd, wheel is crushed；4th, knot screen is dried；5th, high-pressure rotary compression-extension
Recipient；6th, refractory brick；7th, resistance wire；8th, rotary press；9th, pressure ram；10th, compressing hole；11st, extended cavity；12nd, finishing die
Tool；13rd, cooling system.
Embodiment
With reference to embodiment and accompanying drawing, the invention will be further described：
A kind of aluminium scrap bits regeneration short route manufacturing process, its flow as shown in figure 1,
First, aluminium scrap bits 1 are put into disintegrating machine 2, aluminium scrap bits 1 is crushed, while aluminium scrap is considered to be worth doing debris heavier in 1
Throw away；Described disintegrating machine 1 is mainly including the broken wheel 3 in disintegrating machine shell and shell, and disintegrating machine 2 is carried out to aluminium scrap bits 1
It is broken, aluminium scrap is considered 1 size uniform to be worth doing；
Then, the aluminium scrap bits 1 Jing Guo the break process of disintegrating machine 2 are put into drying knot screen 4 and carry out drying removal of impurities, gone
Except aluminium scrap considers the impurity such as the greasy dirt and water on 1 surface to be worth doing；The drying knot screen 4 is inclined revolving burner, and inclination angle is 30-45 °,
Rotary speed is 1-10r/min, and drying removal of impurities temperature is 100-500 DEG C, and drying is 10-120min except miscellaneous time；
Then, the aluminium scrap bits 1 after drying removal of impurities are put into inside high-pressure rotary compression-expending extrusion cylinder 5, and to height
Pressure rotary compression-expending extrusion cylinder 5 is heated, and heating uses the combined heated of refractory brick 6 and heating wire 7, and heating-up temperature is
100-600 DEG C, the heat time is 10-100min.
Afterwards, rotary press 8 is started ,-the aluminium scrap bits 1 in expending extrusion cylinder 5 are compressed-expands to high-pressure rotary compression
Big plastic extrusion is opened up, rotary press 8 drives the pressure ram 9 being arranged in high-pressure rotary compression-expending extrusion cylinder 5 to consider aluminium scrap to be worth doing
1 carries out rotational shear deformation, is compressed before aluminium scrap considers 1 compressing hole 10 for entering high-pressure rotary compression-expending extrusion cylinder 5 to be worth doing
For column aluminium block, aluminium scrap is considered to be worth doing and there occurs larger deformation inside 1, as the pressure of rotary press 8 is continuously increased, is pressed into post
The aluminium block of shape, which enters inside the compressing hole 10 of high-pressure rotary compression-expending extrusion cylinder 5, aluminium block, proceeds compression, column
Aluminium block diameter further reduce, diameter reduce column aluminium block from compressing hole 10 enter expand chamber 11, now aluminium block diameter
Increase, installs shaping dies 12, aluminium block is formed using shaping dies 12 in the outlet of extended cavity 11；It is high in forming process
Press a diameter of 20-400mm of recipient, a diameter of 10-300mm of compressing hole 10, extended cavity 11 of rotary compression-expending extrusion cylinder 5
A diameter of 20-1000mm；Shaping dies 12 can be wire rod, section bar and tubing etc..
5th step, aluminum products carry out on-line cooling by cooling system 13, and cooling uses water-cooling pattern, and cooling water flow is
1-20L/min。
Embodiment 1：
A356 aluminium alloy wires steps are prepared using this method as follows：
Aluminium scrap bits are put into disintegrating machine, bulk aluminium skimmings crushed, while debris heavier in aluminium skimmings is got rid of by the first step
Go out；
The aluminium scrap bits handled by crusher in crushing are put into drying knot screen and carry out drying removal of impurities, removed by second step
The impurity such as the greasy dirt and water on aluminium scrap bits surface, drying knot screen is inclined revolving burner, and inclination angle is 30 °, and rotary speed is
5-6r/min, drying removal of impurities temperature is 100-200 DEG C, and drying is 20-50min except miscellaneous time；
Aluminium skimmings after drying removal of impurities are put into high-pressure rotary compression-expending extrusion cylinder internal and crowded to this by the 3rd step
Pressure cylinder is heated, and heating-up temperature is 300-400 DEG C, and the heat time is 10-20min；
4th step, starts forcing press, and big ram pressing is compressed-extends to the aluminium skimmings in recipient；In shaping
During, a diameter of 100mm of recipient, a diameter of 50mm of compressing hole, a diameter of 100mm of extended cavity；Using wire forming mould；
5th step, carries out on-line cooling, cooling water flow is 10L/min to the aluminium alloy wires of preparation.
Embodiment 2：
A356 aluminium alloy pipe steps are prepared using the inventive method as follows：
Aluminium scrap bits are put into disintegrating machine, bulk aluminium skimmings crushed, while debris heavier during aluminium scrap is considered to be worth doing by the first step
Throw away；
The aluminium scrap bits handled by crusher in crushing are put into drying knot screen and carry out drying removal of impurities, mainly by second step
It is to remove the impurity such as the greasy dirt and water on aluminium scrap bits surface；Drying knot screen is inclined revolving burner, and inclination angle is 40 °, rotation
Speed is 8-10r/min, and drying removal of impurities temperature is 100-200 DEG C, and drying is 20-50min except miscellaneous time；
Aluminium skimmings after drying removal of impurities are put into inside in high-pressure rotary compression-expending extrusion by the 3rd step, and to extruding
Cylinder is heated, and heating-up temperature is 400-450 DEG C, and the heat time is 20-40min；
4th step, starts forcing press, and big ram pressing is compressed-extends to the aluminium skimmings in recipient；In shaping
During, a diameter of 60mm of recipient, a diameter of 50mm of compressing hole, a diameter of 60mm of extended cavity；Using forming die for pipe；
5th step, carries out on-line cooling, cooling water flow is 20L/min to product.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, this area is common
Other modifications or equivalent substitution that technical staff is made to technical scheme, without departing from technical solution of the present invention
Spirit and scope, all should cover among scope of the presently claimed invention.
Claims (1)
1. a kind of aluminium scrap bits regeneration short route manufacturing process, it is characterised in that：Comprise the following steps：
Aluminium scrap bits are put into disintegrating machine by the first step, aluminium scrap bits are crushed, while debris heavier during aluminium scrap is considered to be worth doing is thrown away；
Second step, the aluminium scrap bits handled by crusher in crushing are put into drying knot screen and carry out drying removal of impurities, are removed useless
The impurity such as the greasy dirt and water on aluminium skimmings surface；The drying knot screen is inclined revolving burner, and inclination angle is 30-45 °, rotation speed
Spend for 1-10r/min, the temperature for drying removal of impurities is 100-500 DEG C, and drying is 10-120min except miscellaneous time；
Aluminium scrap bits after drying removal of impurities are put into high-pressure rotary compression-expending extrusion cylinder inside, and high pressure is revolved by the 3rd step
Turn compression-expending extrusion cylinder to be heated；The high-pressure rotary compression-expending extrusion cylinder heating-up temperature is 100-600 DEG C, heating
Time is 10-100min；
4th step, starts rotary press, to high-pressure rotary compression, and-the aluminium scrap bits in expending extrusion cylinder are compressed-extends big
Plastic extrusion, rotary press carries out rotational shear deformation to aluminium scrap bits first, enters high-pressure rotary compression-extension in aluminium scrap bits
Column aluminium block has been compressed to before the compressing hole of recipient, has been continuously increased with the pressure of rotary press, is pressed into column
Aluminium block enter the compressing hole of high-pressure rotary compression-expending extrusion cylinder, the aluminium block diameter of column further reduces, what diameter reduced
Column aluminium block enters from compressing hole expands chamber, installs shaping dies in extended cavity outlet, aluminium block is formed using shaping dies；
In the extrusion process, high-pressure rotary compression-expending extrusion cylinder a diameter of 20-400mm, a diameter of 10- of compressing hole
300mm, a diameter of 20-1000mm of extending bore；The shaping dies can be wire rod, section bar and pipe mold；
The aluminum products of shaping are carried out online water cooling, the water-carrying capacity of water cooling is 1-20L/min by the 5th step.
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| CN201610057672.5A CN105483390B (en) | 2016-01-28 | 2016-01-28 | A kind of aluminium scrap bits regeneration short route manufacturing process |
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| CN201610057672.5A CN105483390B (en) | 2016-01-28 | 2016-01-28 | A kind of aluminium scrap bits regeneration short route manufacturing process |
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| CN106148707A (en) * | 2016-07-31 | 2016-11-23 | 吴雪梅 | A kind of Full-automatic aluminum alloyed scrap reclaims forming machine |
| CN106350691A (en) * | 2016-09-18 | 2017-01-25 | 湘西自治州丰达合金科技有限公司 | Integrated manganese-aluminum alloy preparation device and manganese-aluminum alloy preparation method |
| CN106944627A (en) * | 2017-02-19 | 2017-07-14 | 山东银光钰源轻金属精密成型有限公司 | A kind of method of use magnesium alloy scrap extruding production sacrificial anode section bar |
| CN109848190A (en) * | 2019-04-08 | 2019-06-07 | 马鞍山旭阳机械有限公司 | A kind of machined metal clast recycling and forming integrated equipment |
| CN110153343A (en) * | 2019-06-05 | 2019-08-23 | 浙江蔚华汽车科技有限公司 | A kind of novel aluminum alloy formed solid method |
| CN111570484A (en) * | 2020-05-27 | 2020-08-25 | 浙江新祥铝业股份有限公司 | Aluminum scrap residue recovery treatment process |
| CN113333555B (en) * | 2021-05-26 | 2023-06-30 | 北京科技大学 | Metal chip solid recovery device |
| CN117305603A (en) * | 2023-10-17 | 2023-12-29 | 中信戴卡股份有限公司 | Solid-phase synthesis recovery method for aluminum scraps of automobile parts |
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Effective date of registration: 20191114 Address after: 526200 Asian Metal Resource Recycling Industrial Base D32, Zhaoqing, Longfu Town, Sihui City, Zhaoqing City, Guangdong Province Patentee after: Zhaoqing great Zheng Aluminum company limited Address before: 030051, Xueyuan Road, Shanxi Province, Taiyuan Province, No. 3 Patentee before: Zhongbei Univ |