CN107723495A - Aluminium section bar founding aluminium bar preparation method - Google Patents
Aluminium section bar founding aluminium bar preparation method Download PDFInfo
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- CN107723495A CN107723495A CN201710958097.0A CN201710958097A CN107723495A CN 107723495 A CN107723495 A CN 107723495A CN 201710958097 A CN201710958097 A CN 201710958097A CN 107723495 A CN107723495 A CN 107723495A
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
-
- 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
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/02—Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic waves
- C22B9/023—By filtering
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/16—Pretreatment, e.g. desmutting
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
-
- 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
Abstract
The invention discloses a kind of aluminium section bar founding aluminium bar preparation method, including weigh aluminium bar preparation raw material, melting aluminium bar raw material, refining, founding, extruding, mechanical pretreatment, degreasing, alkali cleaning, washing, oxidation, surface treatment, coloring process, spraying coating process, curing process, anticorrosive coat is coated with the outer surface of aluminium bar, the thickness of the anticorrosive coat is 20 50 μm.Founding aluminium bar weatherability prepared by the present invention is strong, and the performance of aluminium bar is improved, and energy-conserving and environment-protective, favorable anti-corrosion effect, can ensure that aluminium bar has preferable antioxygenic property;Aluminium bar dregginess is low in the present invention, carries out removing Slag treatment to spray refining agent inside alloy aluminium liquid using conche, then is filtered by ceramic filter plate and carry out removing Slag treatment, effectively removes the slag inclusion in alloy aluminium liquid, greatly reduces the dregginess in aluminium bar.
Description
Technical field
The invention belongs to aluminium section bar processing technique field, in particular to a kind of aluminium section bar founding aluminium bar preparation method.
Background technology
Titanium-plating technology for aluminium section material, belonging to coating technique, it is to increase preplating and galvanizer on the basis of conventional technology for plating titanium
Skill step, aluminium section bar technique are that the plating piece after activation is placed in the aqueous solution of salt and hydrochloric acid to be chemically treated.Galvanizer
The solution composition of skill includes nickel sulfate, nickel chloride, boric acid, lauryl sodium sulfate, saccharin, brightener, this technique have it is simple,
Practical, the advantages that effect is good, than plating 22K under Ticoated aluminium shaped material its film hardness HV ≈ 1500, equal conditions made from this technique
Wear-resisting 150 times of gold, the bright a variety of serial aluminium profile products of gold, the colour, black etc. of various forms can be processed into.Aluminium section bar
Density there was only 2.7g/cm3, the density of about steel, copper or brass (is respectively 7.83g/ cm3, 8.93g/ cm3) 1/3.
Under most of environmental conditions, it is included in sky gas and water (or salt solution), petrochemistry and many chemical systems, aluminium can show excellent
Corrosion resistance.Aluminium section bar is often selected due to its excellent conductivity.On the basis of being equal in weight, the electrical conductivity of aluminium is near
In twice of copper.The thermal conductivity dose rate of aluminium alloy is about the 50-60% of copper, this to manufacture heat exchanger, evaporator, heating electrical appliance,
Cooking utensils, and the cylinder cap of automobile are all favourable with radiator.Aluminium section bar is non-ferromagnetic, and this is to electrical industry and electronics
It is a key property for industry.Aluminium section bar is unable to spontaneous combustion, and this is to being related to handling or the application of contact equipment of Flammable and Explosive Materials
For be important.The machinable of aluminium section bar is excellent.In various modifications aluminium alloy and cast aluminium alloy gold, Yi Ji
In the various states that these alloy output Hous have, the change of machining characteristicses is quite big, and this just needs special lathe or skill
Art.
In the prior art, aluminium alloy smelting, castability are relatively low, and product quality and production efficiency cannot be guaranteed.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, devises a kind of aluminium section bar founding aluminium bar preparation side
Method.
The present invention is to be achieved through the following technical solutions:
A kind of aluminium section bar founding aluminium bar preparation method, comprises the following steps:
Step a, the raw material of aluminium bar preparation is weighed:According to the component requirements of aluminium bar, mainly including aluminium, copper, magnesium, zinc, silicon metal member
Element, calculate and weigh aluminium, copper, magnesium, zinc, the weight of silicon metallic element, and chromium is added in the form of aluminium-chromium intermediate alloy;
Step b, the raw material of melting aluminium bar:The aluminium weighed in step a, copper, magnesium, zinc, element silicon are added in smelting furnace and carried out
Stirring, slagging agent is spilt on aluminium liquid surface while melting, after melting terminates, the aluminium slag on aluminium liquid surface is removed, obtains alloy aluminium liquid;
Step c, refine:Refining agent is filled with alloy aluminium liquid with inert gas using conche, alloy aluminium liquid is carried out in stove
Refining;
Step d, founding:Real-time degasification is carried out with depassing unit in fusion-casting process, is filtered with potsherd;
Step e, extrude:The aluminium bar of founding is sent into extruder, aluminium bar is through extruder extrusion forming;
Step f, mechanical pretreatment:The mechanical pretreatment includes mechanical sandblasting and mechanical polishing, and the mechanical sandblasting is to obtain
The founding aluminium bar of sand face section bar is obtained, is completed by aluminium section bar sand-blasting machine, the mechanical polishing is carried out on aluminium profile polishing machine;
Step g, degreasing:At normal temperatures, aluminium bar is placed in the phosphoric acid solution that mass fraction is 80% and soaks 8-12min;
Step h, alkali cleaning:Slowly lower groove will be tilted by the aluminium bar of water-washing step, groove basicity is PH<10, after the time arrives, immediately
Sling, in order to avoid cause alkali lye to be attached to because temperature is too high on founding aluminium bar, it is next difficult to neutral zone, in the laggard water-filling of alkaline etching step
Wash, neutralize, water washing operations;
Step i, wash:Aluminium bar is taken out, the surface of aluminium bar is rinsed with water;
Step j, aoxidize:Aluminium section bar after washing is placed in the H of concentration 98%2SO4Anode is used as in solution, uses impressed current
Make anodic oxidation, be passivated aluminium shape surface, form the oxide-film of 10-15 μ m thicks;
Step k, it is surface-treated:Aluminium bar Jing Guo anodic oxidation is sequentially placed into acetone, ethanol, deionized water, then uses nitrogen
Air-blowing is done;65 DEG C of waters bath with thermostatic control in chemical pretreatment solution are put into impregnate, dry, obtaining the aluminium bar with protective layer.
A kind of aluminium section bar also includes coloring process with founding aluminium bar preparation method, by the aluminium bar through peroxidating be immersed in containing
In the solution of dyestuff, due to the suction-operated of oxide-film porous layer, therefore dye molecule develops the color into hole.
A kind of aluminium section bar also includes spraying coating process with founding aluminium bar preparation method, and the aluminium bar through surface is dried in drying oven
It is completely dry to water, after drying, anti-fouling paint is uniformly smeared on aluminium bar surface using spraying, roller coating and/or brushing mode, painted
Film, film thickness are 5-15 μm.
A kind of aluminium section bar also includes curing process with founding aluminium bar preparation method, in the baking oven that temperature is 200-260 DEG C
After toasting 30min, natural cooling.
Anticorrosive coat is coated with the outer surface of aluminium bar;The anticorrosive coat prepares sodium fluoride 20-40 parts, hydrogen fluoride by weight
Ammonium 30-60 parts, potassium permanganate 10-20 parts, potassium chromate 40-50 parts, trbasic zinc phosphate 15-25 parts, sodium nitrate 8-18 parts, praseodymium chloride 5-12
Part, ethylenediamine tetra-acetic acid 10-16 parts, dodecyl phenenyl sulfate 8-12 parts, nickel sulfate 6-13 parts, triethanolamine 15-25 parts, water
500-900 parts;The thickness of the anticorrosive coat is 20-50 μm.
Compared with prior art, the beneficial effects of the invention are as follows:Founding aluminium bar weatherability prepared by the present invention is strong, aluminium bar
Performance be improved, and energy-conserving and environment-protective, favorable anti-corrosion effect can ensure that aluminium bar has preferable antioxygenic property;This hair
Bright middle aluminium bar dregginess is low, carries out removing Slag treatment to spray refining agent inside alloy aluminium liquid using conche, then pass through ceramic filter
Plate filtering carries out removing Slag treatment, effectively removes the slag inclusion in alloy aluminium liquid, greatly reduces the dregginess in aluminium bar.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
A kind of aluminium section bar founding aluminium bar preparation method, comprises the following steps:
Step a, the raw material of aluminium bar preparation is weighed:According to the component requirements of aluminium bar, mainly including aluminium, copper, magnesium, zinc, silicon metal member
Element, calculate and weigh aluminium, copper, magnesium, zinc, the weight of silicon metallic element, and chromium is added in the form of aluminium-chromium intermediate alloy;
Step b, the raw material of melting aluminium bar:The aluminium weighed in step a, copper, magnesium, zinc, element silicon are added in smelting furnace and carried out
Stirring, slagging agent is spilt on aluminium liquid surface while melting, after melting terminates, the aluminium slag on aluminium liquid surface is removed, obtains alloy aluminium liquid;
Step c, refine:Refining agent is filled with alloy aluminium liquid with inert gas using conche, alloy aluminium liquid is carried out in stove
Refining;
Step d, founding:Real-time degasification is carried out with depassing unit in fusion-casting process, is filtered with potsherd;
Step e, extrude:The aluminium bar of founding is sent into extruder, aluminium bar is through extruder extrusion forming;
Step f, mechanical pretreatment:The mechanical pretreatment includes mechanical sandblasting and mechanical polishing, and the mechanical sandblasting is to obtain
The founding aluminium bar of sand face section bar is obtained, is completed by aluminium section bar sand-blasting machine, the mechanical polishing is carried out on aluminium profile polishing machine;
Step g, degreasing:At normal temperatures, aluminium bar is placed in the phosphoric acid solution that mass fraction is 80% and soaks 8-12min;
Step h, alkali cleaning:Slowly lower groove will be tilted by the aluminium bar of water-washing step, groove basicity is PH<10, after the time arrives, immediately
Sling, in order to avoid cause alkali lye to be attached to because temperature is too high on founding aluminium bar, it is next difficult to neutral zone, in the laggard water-filling of alkaline etching step
Wash, neutralize, water washing operations;
Step i, wash:Aluminium bar is taken out, the surface of aluminium bar is rinsed with water;
Step j, aoxidize:Aluminium section bar after washing is placed in the H of concentration 98%2SO4Anode is used as in solution, uses impressed current
Make anodic oxidation, be passivated aluminium shape surface, form the oxide-film of 10-15 μ m thicks;
Step k, it is surface-treated:Aluminium bar Jing Guo anodic oxidation is sequentially placed into acetone, ethanol, deionized water, then uses nitrogen
Air-blowing is done;65 DEG C of waters bath with thermostatic control in chemical pretreatment solution are put into impregnate, dry, obtaining the aluminium bar with protective layer.
A kind of aluminium section bar also includes coloring process with founding aluminium bar preparation method, by the aluminium bar through peroxidating be immersed in containing
In the solution of dyestuff, due to the suction-operated of oxide-film porous layer, therefore dye molecule develops the color into hole.
A kind of aluminium section bar also includes spraying coating process with founding aluminium bar preparation method, and the aluminium bar through surface is dried in drying oven
It is completely dry to water, after drying, anti-fouling paint is uniformly smeared on aluminium bar surface using spraying, roller coating and/or brushing mode, painted
Film, film thickness are 5-15 μm.
A kind of aluminium section bar also includes curing process with founding aluminium bar preparation method, in the baking oven that temperature is 200-260 DEG C
After toasting 30min, natural cooling.
Anticorrosive coat is coated with the outer surface of aluminium bar;The anticorrosive coat prepares sodium fluoride 20-40 parts, hydrogen fluoride by weight
Ammonium 30-60 parts, potassium permanganate 10-20 parts, potassium chromate 40-50 parts, trbasic zinc phosphate 15-25 parts, sodium nitrate 8-18 parts, praseodymium chloride 5-12
Part, ethylenediamine tetra-acetic acid 10-16 parts, dodecyl phenenyl sulfate 8-12 parts, nickel sulfate 6-13 parts, triethanolamine 15-25 parts, water
500-900 parts;The thickness of the anticorrosive coat is 20-50 μm.
Founding aluminium bar weatherability prepared by the present invention is strong, and the performance of aluminium bar is improved, and energy-conserving and environment-protective, antiseptic effect
It is good, it can ensure that aluminium bar has preferable antioxygenic property;Aluminium bar dregginess is low in the present invention, using conche to alloy aluminium liquid
Inside spray refining agent carries out removing Slag treatment, then carries out removing Slag treatment by ceramic filter plate filtering, effectively removes alloy aluminium liquid
Interior slag inclusion, greatly reduce the dregginess in aluminium bar.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (7)
1. a kind of aluminium section bar founding aluminium bar preparation method, it is characterised in that comprise the following steps:
Step a, the raw material of aluminium bar preparation is weighed:According to the component requirements of aluminium bar, mainly including aluminium, copper, magnesium, zinc, silicon metal member
Element, calculate and weigh aluminium, copper, magnesium, zinc, the weight of silicon metallic element, and chromium is added in the form of aluminium-chromium intermediate alloy;
Step b, the raw material of melting aluminium bar:The aluminium weighed in step a, copper, magnesium, zinc, element silicon are added in smelting furnace and carried out
Stirring, slagging agent is spilt on aluminium liquid surface while melting, after melting terminates, the aluminium slag on aluminium liquid surface is removed, obtains alloy aluminium liquid;
Step c, refine:Refining agent is filled with alloy aluminium liquid with inert gas using conche, alloy aluminium liquid is carried out in stove
Refining;
Step d, founding:Real-time degasification is carried out with depassing unit in fusion-casting process, is filtered with potsherd;
Step e, extrude:The aluminium bar of founding is sent into extruder, aluminium bar is through extruder extrusion forming;
Step f, mechanical pretreatment:The mechanical pretreatment includes mechanical sandblasting and mechanical polishing, and the mechanical sandblasting is to obtain
The founding aluminium bar of sand face section bar is obtained, is completed by aluminium section bar sand-blasting machine, the mechanical polishing is carried out on aluminium profile polishing machine;
Step g, degreasing:At normal temperatures, aluminium bar is placed in the phosphoric acid solution that mass fraction is 80% and soaks 8-12min;
Step h, alkali cleaning:Slowly lower groove will be tilted by the aluminium bar of water-washing step, groove basicity is PH<10, after the time arrives, immediately
Sling, in order to avoid cause alkali lye to be attached to because temperature is too high on founding aluminium bar, it is next difficult to neutral zone, in the laggard water-filling of alkaline etching step
Wash, neutralize, water washing operations;
Step i, wash:Aluminium bar is taken out, the surface of aluminium bar is rinsed with water;
Step j, aoxidize:Aluminium section bar after washing is placed in the H of concentration 98%2SO4Anode is used as in solution, is made with impressed current
Anodic oxidation, aluminium shape surface is passivated, forms the oxide-film of 10-15 μ m thicks;
Step k, it is surface-treated:Aluminium bar Jing Guo anodic oxidation is sequentially placed into acetone, ethanol, deionized water, then uses nitrogen
Air-blowing is done;65 DEG C of waters bath with thermostatic control in chemical pretreatment solution are put into impregnate, dry, obtaining the aluminium bar with protective layer.
2. aluminium section bar according to claim 1 founding aluminium bar preparation method, it is characterised in that:Also include coloring process,
Aluminium bar through peroxidating is immersed in the solution containing dyestuff, due to the suction-operated of oxide-film porous layer, dye molecule because
This enters hole and developed the color.
3. aluminium section bar according to claim 2 founding aluminium bar preparation method, it is characterised in that:Also include spraying coating process,
It is completely dry that aluminium bar through surface is dried to water in drying oven, after drying, by anti-fouling paint on aluminium bar surface using spraying, roller coating
And/or brush mode and uniformly smear, paint film is obtained, film thickness is 5-15 μm.
4. aluminium section bar according to claim 3 founding aluminium bar preparation method, it is characterised in that:Also include curing process,
After 30min being toasted in the baking oven that temperature is 200-260 DEG C, natural cooling.
5. aluminium section bar according to claim 4 founding aluminium bar preparation method, it is characterised in that:Applied in the outer surface of aluminium bar
It is covered with anticorrosive coat.
6. aluminium section bar according to claim 5 founding aluminium bar preparation method, it is characterised in that:The anticorrosive coat is by weight
Part prepares sodium fluoride 20-40 parts, ammonium acid fluoride 30-60 parts, potassium permanganate 10-20 parts, potassium chromate 40-50 parts, trbasic zinc phosphate 15-25
Part, sodium nitrate 8-18 parts, praseodymium chloride 5-12 parts, ethylenediamine tetra-acetic acid 10-16 parts, dodecyl phenenyl sulfate 8-12 parts, sulfuric acid
Nickel 6-13 parts, triethanolamine 15-25 parts, water 500-900 parts.
7. aluminium section bar according to claim 6 founding aluminium bar preparation method, it is characterised in that:The thickness of the anticorrosive coat
For 20-50 μm.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108588698A (en) * | 2018-06-15 | 2018-09-28 | 南通富尔特金属制品有限公司 | A kind of aluminium section bar erosion resistant coating |
CN109397107A (en) * | 2018-11-06 | 2019-03-01 | 广东江晟铝业有限公司 | Oxidation aluminium processing method |
CN110303292A (en) * | 2019-04-17 | 2019-10-08 | 东莞市德铫实业有限公司 | A kind of aluminium radiator fin production moulding process |
CN110586894A (en) * | 2019-10-22 | 2019-12-20 | 徐州轩辕铝业有限公司 | Hot-press casting processing technology for aluminum profile |
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CN105671616A (en) * | 2016-03-16 | 2016-06-15 | 浙江鸿昌铝业有限公司 | Anticorrosive treatment technology for surface of aluminum profile |
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CN102719871A (en) * | 2012-07-13 | 2012-10-10 | 天津市煜德隆铝业制造有限公司 | Aluminum profile oxidization operating method |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108588698A (en) * | 2018-06-15 | 2018-09-28 | 南通富尔特金属制品有限公司 | A kind of aluminium section bar erosion resistant coating |
CN109397107A (en) * | 2018-11-06 | 2019-03-01 | 广东江晟铝业有限公司 | Oxidation aluminium processing method |
CN110303292A (en) * | 2019-04-17 | 2019-10-08 | 东莞市德铫实业有限公司 | A kind of aluminium radiator fin production moulding process |
CN110586894A (en) * | 2019-10-22 | 2019-12-20 | 徐州轩辕铝业有限公司 | Hot-press casting processing technology for aluminum profile |
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Application publication date: 20180223 |