CN106399762A - High-strength corrosion-resistant aluminum alloy profile and preparation method thereof - Google Patents

High-strength corrosion-resistant aluminum alloy profile and preparation method thereof Download PDF

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CN106399762A
CN106399762A CN201611063059.0A CN201611063059A CN106399762A CN 106399762 A CN106399762 A CN 106399762A CN 201611063059 A CN201611063059 A CN 201611063059A CN 106399762 A CN106399762 A CN 106399762A
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aluminium alloy
strength corrosion
cast ingot
alloy extrusions
preparation
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CN106399762B (en
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付建华
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ANHUI YUCAN NEW MATERIAL TECHNOLOGY Co.,Ltd.
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Anhui Province Yu Xin Mstar Technology Ltd
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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
    • 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
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
    • 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
    • C22C21/10—Alloys based on aluminium with zinc as the next major constituent
    • 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
    • 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
    • C22F1/047—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 of alloys with magnesium as the next major constituent
    • 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
    • C22F1/053—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 of alloys with zinc as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment

Abstract

The invention discloses a high-strength corrosion-resistant aluminum alloy profile and a preparation method thereof. The aluminum alloy profile comprises an aluminum alloy base body and a ceramic coating. The aluminum alloy base body is prepared from Cu, Si, Fe, Cr, Mg, Mn, Zn, Ti, Li, Ni, Zr, Y, W, V and the balance Al. The ceramic coating is prepared from SiC, Cr2O3, NiO, Cr3C2, Al2O3 and Si3N4. According to the high-strength corrosion-resistant aluminum alloy profile, ceramic powder is arranged on the surface of the aluminum alloy base body through plasma cladding, and then laser remelting is conducted, so that the obtained aluminum alloy profile has good mechanical performance such as strength, hardness and impact toughness; and meanwhile, the high-strength corrosion-resistant aluminum alloy profile has the beneficial effects of being resistant to corrosion, good in abrasion resistance, long in service life and the like.

Description

A kind of high-strength corrosion-resisting aluminium alloy extrusions and preparation method thereof
Technical field
The present invention relates to technical field of aluminum alloy technology, more particularly, to a kind of high-strength corrosion-resisting aluminium alloy extrusions and its preparation side Method.
Background technology
Because aluminium alloy has much excellent physical and chemical performance, therefore it is widely applied to each neck of national economy Domain.When the surface of aluminium alloy exposes in an atmosphere, one layer of very thin natural oxide film can be covered on its surface, but due to its table The natural oxide film in face is easy to be corroded, thus greatly reducing the service life of aluminum alloy materials.Therefore it will usually to aluminum Alloy profile is surface-treated, and existing technique for surface treatment of aluminium alloy sections has anodic oxidation, electrolytic coloring, electrophoresis to apply Paint, powder spray, F-C paint spraying, wire drawing etc., these process of surface treatment all play certain anticorrosion effect, but are as The raising of the performance requirement to aluminium alloy extrusions for the people, existing aluminium alloy extrusions need to be carried in corrosion resistance with intensity High.
Content of the invention
Based on background technology exist technical problem, the present invention propose a kind of high-strength corrosion-resisting aluminium alloy extrusions and its Preparation method, this aluminium alloy extrusions has the mechanical properties such as good intensity, hardness, toughness, also has corrosion resistant simultaneously Corrosion and wearability are good, long service life the advantages of.
A kind of high-strength corrosion-resisting aluminium alloy extrusions proposed by the present invention, it includes alloy matrix aluminum and ceramic coating, institute State alloy matrix aluminum and include following component by mass fraction：Cu：0.35-0.65%, Si：0.16-0.21%, Fe：0.3- 0.5%th, Cr：0.4-0.7%, Mg：0.65-1%, Mn：0.2-0.5%, Zn：0.2-0.7%, Ti：0.1-0.35%, Li： 0.1-0.2%, Ni：0.15-0.4%, Zr：0.06-0.18%, Y：0.04-0.15%, W：0.04-0.09%, V：0.06- 0.12%, remaining is Al.
In specific embodiment, the mass fraction of Cu can also for 0.38%, 0.43%, 0.48%, 0.54%, The mass fraction of 0.62%, Si can also for 0.175%, 0.186%, 0.195%, the mass fraction of 0.202%, Fe acceptable For 0.35%, 0.39%, 0.42%, 0.45%, the mass fraction of 0.48%, Cr can also for 0.45%, 0.52%, 0.58%th, 0.64%, the mass fraction of 0.68%, Mg can also be 0.72%, 0.78%, 0.85%, 0.92%, 0.97%, The mass fraction of Mn can also for 0.25%, 0.35%, 0.42%, the mass fraction of 0.48%, Zn can also for 0.28%, 0.36%th, 0.45%, 0.54%, the mass fraction of 0.68%, Ti can also be 0.16%, 0.22%, 0.28%, 0.32%, The mass fraction of Li can also for 0.12%, 0.15%, 0.17%, the mass fraction of 0.185%, Ni can also for 0.2%, 0.25%th, 0.3%, 0.36%, the mass fraction of 0.385%, Zr can also for 0.09%, 0.11%, 0.13%, 0.15%, The mass fraction of 0.165%, Y can also for 0.06%, 0.08%, 0.1%, 0.12%, the mass fraction of 0.135%, W also may be used Think 0.05%, 0.06%, 0.07%, the mass fraction of 0.08%, V can also for 0.08%, 0.09%, 0.1%, 0.114%, remaining is Al.
Preferably, the raw material of described ceramic coating is nano ceramic powder.
Preferably, the particle diameter of described nano ceramic powder is 55-80nm.
Preferably, the raw material of described nano ceramic powder includes by weight：20-30 part SiC, 10-20 part Cr2O3、15- 25 parts of NiO, 12-20 part Cr3C2, 20-30 part Al2O3, 5-12 part Si3N4.
A kind of preparation method of high-strength corrosion-resisting aluminium alloy extrusions proposed by the present invention, according to following technique system Standby：
S1, raw material is carried out obtaining aluminium alloy cast ingot after melting, obtain primary aluminium alloy cast ingot after Homogenization Treatments；
S2, primary aluminium alloy cast ingot is carried out carrying out after extrusion molding being thermally treated resulting in alloy matrix aluminum；
S3, alloy matrix aluminum is polished after cleaning, plasma cladding process is carried out to aluminium alloy matrix surface, obtains pottery Coating, is cooled to room temperature, then carries out laser remolten to it, is air cooled to room temperature, is then incubated 5-6h at 110-130 DEG C, is cooled to Described high-strength corrosion-resisting aluminium alloy extrusions is obtained after room temperature.
Preferably, in S1, the comprising the following steps that of Homogenization Treatments process：By aluminium alloy cast ingot at 450-470 DEG C Homogenization Treatments 2-3h, then Homogenization Treatments 1.5-2.5h at 490-510 DEG C, then Homogenization Treatments at 530-550 DEG C 1-2h, obtains primary aluminium alloy cast ingot.
Preferably, in S2, the comprising the following steps that of heat treatment：Primary aluminium alloy cast ingot after extrusion molding is placed in It is incubated 2-3h at 300-320 DEG C, then is cooled to 220-240 DEG C, be incubated 3-4h, be then cooled to 150-165 DEG C, be incubated 6-7h, Alloy matrix aluminum is obtained after being air cooled to room temperature.
Preferably, the technological parameter that plasma cladding is processed is as follows：Synchronous powder feeding system, ionized gas flow is 2-5L/min, For argon and argon flow amount is 6-9L/min to protective gas, and transfer arc voltage is 20-35V, and transfer current is 80-120A, spray base For 10-25mm, power is 1.8-3KW, and scanning speed is 5-10mm/s, and plasma arc spot diameter is 2-4mm, plasma cladding Thickness degree is 1.5-2.5mm.
Preferably, the technological parameter of laser remolten is as follows：Single-channel scanning, argon protects laser cell, and spot diameter is 2- 3.5mm, scanning speed is 5-8mm/s, and power is 1.7-2.2KW.
Preferably, the technological parameter of laser remolten is as follows：Single-channel scanning, argon protects laser cell, and spot diameter is 2.5- 3mm, scanning speed is 6-7mm/s, and power is 1.8-2.1KW.
Pass through in the present invention to control the content of Cr, Mn, V, W, Al, be that alloy matrix aluminum has good mechanical property and establishes Basis；Control Y, Si, Zr, Ti, Li content in alloy matrix aluminum, have good during preparing alloy matrix aluminum Deoxidation effect and Grain refinement, be prevented effectively from intercrystalline corrosion, reduce the cracking sensitivity of alloy matrix aluminum, improve aluminum The performance of alloy substrate, wherein, Zr, Li generate hardening constituent Al3Zr、Al2CuLi, improves the strength and toughness of alloy matrix aluminum, Y, Si and Fe cooperation improves the anti-fatigue performance of alloy matrix aluminum；By controlling the content of Al, Cu, Mg, Zn, form Dispersed precipitate Hardening constituent Al2Cu、Al2CuMg、MgZn2, each hardening constituent synergism, refine as-cast grain, improve the position of alloy matrix aluminum Dislocation density and recrystallization temperature it is suppressed that recrystallization, improve the tensile strength of alloy matrix aluminum, yield strength, hardness, toughness Etc. mechanical property；In preparation process, during Homogenization Treatments are carried out to aluminium alloy cast ingot, arrange in the range of different temperatures The Homogenization Treatments time, improve size and the distribution of hardening constituent precipitation, improve the intensity of aluminium alloy, hardness, toughness, corrosion resistant Corrosion and processing characteristics, reduce resistance of deformation, it is to avoid nonequilibrium freezing leads to raw material uneven and nonequilibrium freezing organizational effect The non-equilibrium microstructure leading to is occurred with thick precipitated phase；Subsequently by after primary aluminium alloy cast ingot extrusion molding using progressively lowering the temperature Mode, by controlling temperature and temperature retention time, makes the refinement of primary aluminum alloy organization, stops recrystallization behavior, prevent extrusion molding The cracking phenomenon of alloy matrix aluminum, further enhance intensity, toughness and the decay resistance of aluminium alloy extrusions；Wait from In sub- cladding process, because nano ceramic powder has larger specific surface area, high to energy absorption utilization rate, by rationally setting Put the parameters of plasma cladding, make SiC, Cr3C2The C and Al of decomposed generates the dendrite of fine acicular at high temperature Al4C3, Si, Cr are solid-solubilized in alloy matrix aluminum, improve hardness and the bond strength with alloy matrix aluminum of ceramic coating, Cr2O3、NiO、Al2O3Cooperation, Dispersed precipitate is between the fine subgrain in molten aluminium alloy surface, and constitutes born of the same parents' shape branch together Crystal structure, and nano level Cr2O3、B2O3、Al2O3Also act as the effect of dispersion-strengtherning and refined crystalline strengthening in aluminum alloy surface, change The organizational structure of kind cladding layer so as to have good intensity, hardness and shock resistance, SiC in nano ceramic powder, Cr2O3、NiO、Cr3C2、Al2O3、Si3N4Cooperation, has reinforced effects to each other, improves the intensity of ceramic coating, hard on the whole The mechanical properties such as degree, toughness and corrosion resistance；Again through laser remolten, refining aluminum alloy Surface of profile organizes crystal grain, improves pottery The layer structure of coating, improves the dislocation density of aluminum alloy surface and the bond strength of ceramic coating and alloy matrix aluminum, to aluminum The mechanical property of alloy profile has reinforced effects, improves wearability and the corrosion resistance of aluminium alloy extrusions, extends aluminium alloy The service life of section bar.High-strength corrosion-resisting aluminium alloy extrusions proposed by the present invention, nano ceramic powder plasma melting is overlayed on Aluminium alloy matrix surface, then through laser remolten so as to get aluminium alloy extrusions there is good intensity, hardness, toughness Etc. mechanical property, also have the advantages that corrosion resistance and wearability be good, long service life simultaneously.
Specific embodiment
Below, by specific embodiment, technical scheme is described in detail.
Embodiment 1
A kind of high-strength corrosion-resisting aluminium alloy extrusions proposed by the present invention, it includes alloy matrix aluminum and ceramic coating, institute State alloy matrix aluminum and include following component by mass fraction：Cu：0.35%th, Si：0.21%th, Fe：0.3%th, Cr：0.7%th, Mg： 0.65%th, Mn：0.5%th, Zn：0.2%th, Ti：0.35%th, Li：0.1%th, Ni：0.4%th, Zr：0.06%th, Y：0.15%th, W： 0.04%th, V：0.12%, remaining is Al.
Wherein, the raw material of described ceramic coating is nano ceramic powder, and its raw material includes by weight：20 parts of SiC, 20 parts Cr2O3, 15 parts of NiO, 20 parts of Cr3C2, 20 parts of Al2O3, 12 parts of Si3N4；
The invention allows for a kind of preparation method of high-strength corrosion-resisting aluminium alloy extrusions, according to following technique system Standby：
S1, raw material is carried out obtaining aluminium alloy cast ingot after melting, obtain primary aluminium alloy cast ingot after Homogenization Treatments；
S2, primary aluminium alloy cast ingot is carried out carrying out after extrusion molding being thermally treated resulting in alloy matrix aluminum；
S3, alloy matrix aluminum is polished after cleaning, plasma cladding process is carried out to aluminium alloy matrix surface, obtains pottery Coating, is cooled to room temperature, then carries out laser remolten to it, is air cooled to room temperature, is then incubated 6h at 110 DEG C, after being cooled to room temperature Obtain described high-strength corrosion-resisting aluminium alloy extrusions.
Embodiment 2
A kind of high-strength corrosion-resisting aluminium alloy extrusions proposed by the present invention, it includes alloy matrix aluminum and ceramic coating, institute State alloy matrix aluminum and include following component by mass fraction：Cu：0.65%th, Si：0.16%th, Fe：0.5%th, Cr：0.4%th, Mg： 1%th, Mn：0.2%th, Zn：0.7%th, Ti：0.1%th, Li：0.2%th, Ni：0.15%th, Zr：0.18%th, Y：0.04%th, W： 0.09%th, V：0.06%, remaining is Al.
Wherein, the raw material of described ceramic coating is nano ceramic powder, and its raw material includes by weight：30 parts of SiC, 10 parts Cr2O3, 25 parts of NiO, 12 parts of Cr3C2, 30 parts of Al2O3, 5 parts of Si3N4；
The invention allows for a kind of preparation method of high-strength corrosion-resisting aluminium alloy extrusions, according to following technique system Standby：
S1, raw material is carried out obtaining aluminium alloy cast ingot after melting, obtain primary aluminium alloy cast ingot after Homogenization Treatments；
S2, primary aluminium alloy cast ingot is carried out being placed in insulation 2h at 320 DEG C after extrusion molding, then be cooled to 240 DEG C, insulation 3h, is then cooled to 165 DEG C, is incubated 6h, obtains alloy matrix aluminum after being air cooled to room temperature；
S3, alloy matrix aluminum is polished after cleaning, plasma cladding process is carried out to aluminium alloy matrix surface, obtains pottery Coating, is cooled to room temperature, then carries out laser remolten to it, is air cooled to room temperature, is then incubated 5h at 130 DEG C, after being cooled to room temperature Obtain described high-strength corrosion-resisting aluminium alloy extrusions.
Embodiment 3
A kind of high-strength corrosion-resisting aluminium alloy extrusions proposed by the present invention, it includes alloy matrix aluminum and ceramic coating, institute State alloy matrix aluminum and include following component by mass fraction：Cu：0.53%th, Si：0.18%th, Fe：0.41%th, Cr：0.55%th, Mg：0.82%th, Mn：0.33%th, Zn：0.45%th, Ti：0.22%th, Li：0.15%th, Ni：0.28%th, Zr：0.12%th, Y： 0.11%th, W：0.065%th, V：0.095%, remaining is Al.
Wherein, the raw material of described ceramic coating is nano ceramic powder, and its particle diameter is 70nm, the raw material of nano ceramic powder Include by weight：25 parts of SiC, 15 parts of Cr2O3, 20 parts of NiO, 16 parts of Cr3C2, 25 parts of Al2O3, 8 parts of Si3N4；
The invention allows for a kind of preparation method of high-strength corrosion-resisting aluminium alloy extrusions, according to following technique system Standby：
S1, raw material is carried out obtaining aluminium alloy cast ingot after melting, by aluminium alloy cast ingot at 460 DEG C Homogenization Treatments 2.5h, then Homogenization Treatments 2h at 500 DEG C, then Homogenization Treatments 1.5h at 540 DEG C, obtains primary aluminium alloy cast ingot.；
S2, primary aluminium alloy cast ingot is carried out being placed in insulation 2.5h at 310 DEG C after extrusion molding, then be cooled to 230 DEG C, protect Warm 3.5h, is then cooled to 158 DEG C, is incubated 6.6h, obtains alloy matrix aluminum after being air cooled to room temperature；
S3, alloy matrix aluminum is polished after cleaning, plasma cladding process is carried out to aluminium alloy matrix surface, obtains pottery Coating, is cooled to room temperature, then carries out laser remolten to it, is air cooled to room temperature, is then incubated 5-6h at 110-130 DEG C, is cooled to Described high-strength corrosion-resisting aluminium alloy extrusions is obtained after room temperature；Wherein, the technological parameter that plasma cladding is processed is as follows：Synchronization is sent Powder, ionized gas flow is 3.5L/min, and for argon and argon flow amount is 7.5L/min to protective gas, and transfer arc voltage is 28V, Transfer current is 100A, and spray base is 17mm, and power is 2.4KW, and scanning speed is 7.5mm/s, and plasma arc spot diameter is 3mm, plasma melting coating thickness is 2mm；The technological parameter of laser remolten is as follows：Single-channel scanning, argon protects laser cell, hot spot A diameter of 2.8mm, scanning speed is 6.5mm/s, and power is 1.95KW.
Embodiment 4
A kind of high-strength corrosion-resisting aluminium alloy extrusions proposed by the present invention, it includes alloy matrix aluminum and ceramic coating, institute State alloy matrix aluminum and include following component by mass fraction：Cu：0.42%th, Si：0.195%th, Fe：0.35%th, Cr：0.65%th, Mg：0.78%th, Mn：0.45%th, Zn：0.35%th, Ti：0.28%th, Li：0.12%th, Ni：0.35%th, Zr：0.12%th, Y： 0.12%th, W：0.05%th, V：0.09%, remaining is Al.
Wherein, the raw material of described ceramic coating is nano ceramic powder, and its particle diameter is 55nm, the raw material of nano ceramic powder Include by weight：22 parts of SiC, 17 parts of Cr2O3, 17 parts of NiO, 18 parts of Cr3C2, 23 parts of Al2O3, 10 parts of Si3N4；
The invention allows for a kind of preparation method of high-strength corrosion-resisting aluminium alloy extrusions, according to following technique system Standby：
S1, raw material is carried out obtaining aluminium alloy cast ingot after melting, by aluminium alloy cast ingot at 450 DEG C Homogenization Treatments 3h, Homogenization Treatments 2.5h at 490 DEG C again, then Homogenization Treatments 2h at 530 DEG C, obtains primary aluminium alloy cast ingot；
S2, primary aluminium alloy cast ingot is carried out being placed in insulation 3h at 300 DEG C after extrusion molding, then be cooled to 220 DEG C, insulation 4h, is then cooled to 150 DEG C, is incubated 7h, obtains alloy matrix aluminum after being air cooled to room temperature；
S3, alloy matrix aluminum is polished after cleaning, plasma cladding process is carried out to aluminium alloy matrix surface, obtains pottery Coating, is cooled to room temperature, then carries out laser remolten to it, is air cooled to room temperature, is then incubated 6h at 110 DEG C, after being cooled to room temperature Obtain described high-strength corrosion-resisting aluminium alloy extrusions；Wherein, the technological parameter that plasma cladding is processed is as follows：Synchronous powder feeding system, from Sub- gas flow is 2L/min, and for argon and argon flow amount is 6L/min to protective gas, and transfer arc voltage is 35V, transfer current For 120A, spray base is 10mm, and power is 1.8KW, and scanning speed is 5mm/s, and plasma arc spot diameter is 4mm, plasma melting Coating thickness is 1.5mm；The technological parameter of laser remolten is as follows：Single-channel scanning, argon protects laser cell, and spot diameter is 2mm, Scanning speed is 8mm/s, and power is 1.7KW.
Embodiment 5
A kind of high-strength corrosion-resisting aluminium alloy extrusions proposed by the present invention, it includes alloy matrix aluminum and ceramic coating, institute State alloy matrix aluminum and include following component by mass fraction：Cu：0.6%th, Si：19.2%th, Fe：0.45%th, Cr：0.46%th, Mg： 0.84%th, Mn：0.27%th, Zn：0.67%th, Ti：0.15%th, Li：0.18%th, Ni：0.2%th, Zr：0.14%th, Y：0.06%th, W： 0.08%th, V：0.08%, remaining is Al.
Wherein, the raw material of described ceramic coating is nano ceramic powder, and its particle diameter is 80nm, the raw material of nano ceramic powder Include by weight：27 parts of SiC, 12 parts of Cr2O3, 22 parts of NiO, 14 parts of Cr3C2, 28 parts of Al2O3, 7.5 parts of Si3N4；
The invention allows for a kind of preparation method of high-strength corrosion-resisting aluminium alloy extrusions, according to following technique system Standby：
S1, raw material is carried out obtaining aluminium alloy cast ingot after melting, by aluminium alloy cast ingot at 470 DEG C Homogenization Treatments 2h, Homogenization Treatments 1.5h at 510 DEG C again, then Homogenization Treatments 1h at 550 DEG C, obtains primary aluminium alloy cast ingot；
S2, primary aluminium alloy cast ingot is carried out being placed in insulation 2h at 320 DEG C after extrusion molding, then be cooled to 240 DEG C, insulation 3h, is then cooled to 165 DEG C, is incubated 6h, obtains alloy matrix aluminum after being air cooled to room temperature；
S3, alloy matrix aluminum is polished after cleaning, plasma cladding process is carried out to aluminium alloy matrix surface, obtains pottery Coating, is cooled to room temperature, then carries out laser remolten to it, is air cooled to room temperature, is then incubated 5h at 130 DEG C, after being cooled to room temperature Obtain described high-strength corrosion-resisting aluminium alloy extrusions；Wherein, the technological parameter that plasma cladding is processed is as follows：Synchronous powder feeding system, from Sub- gas flow is 5L/min, and for argon and argon flow amount is 9L/min to protective gas, and transfer arc voltage is 20V, transfer current For 80A, spray base is 25mm, and power is 3KW, and scanning speed is 10mm/s, and plasma arc spot diameter is 2mm, plasma cladding Thickness degree is 2.5mm；The technological parameter of laser remolten is as follows：Single-channel scanning, argon protects laser cell, and spot diameter is 3.5mm, Scanning speed is 5mm/s, and power is 2.2KW.
At normal temperatures and pressures performance test is carried out to high-strength corrosion-resisting aluminium alloy extrusions described in the embodiment of the present invention 5, Compared with prior art result is as shown in the table：
Prior art Embodiment 5
Yield strength/MPa 276 318
Tensile strength/MPa 310 357
Hardness/HRC 95 103.5
Fracture elongation 1.6mm thickness/% 12 13.4
By above table as can be seen that high-strength corrosion-resisting aluminium alloy extrusions of the present invention compared with prior art, It is obtained for lifting in terms of yield strength, tensile strength, hardness and fracture elongation, show more excellent performance, more It is suitable for production and application.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto, Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.

Claims (9)

1. a kind of high-strength corrosion-resisting aluminium alloy extrusions is it is characterised in that it includes alloy matrix aluminum and ceramic coating, described aluminum Alloy substrate includes following component by mass fraction：Cu：0.35-0.65%, Si：0.16-0.21%, Fe：0.3-0.5%, Cr： 0.4-0.7%, Mg：0.65-1%, Mn：0.2-0.5%, Zn：0.2-0.7%, Ti：0.1-0.35%, Li：0.1-0.2%, Ni：0.15-0.4%, Zr：0.06-0.18%, Y：0.04-0.15%, W：0.04-0.09%, V：0.06-0.12%, remaining is Al.
2. according to claim 1 high-strength corrosion-resisting aluminium alloy extrusions it is characterised in that the raw material of described ceramic coating is Nano ceramic powder.
3. according to claim 2 high-strength corrosion-resisting aluminium alloy extrusions it is characterised in that the grain of described nano ceramic powder Footpath is 55-80nm.
4. according to claim 2 high-strength corrosion-resisting aluminium alloy extrusions it is characterised in that described nano ceramic powder former Material includes by weight：20-30 part SiC, 10-20 part Cr2O3, 15-25 part NiO, 12-20 part Cr3C2, 20-30 part Al2O3、5- 12 parts of Si3N4.
5. a kind of preparation method of high-strength corrosion-resisting aluminium alloy extrusions as any one of claim 1-4, its feature exists In being prepared according to following technique：
S1, raw material is carried out obtaining aluminium alloy cast ingot after melting, obtain primary aluminium alloy cast ingot after Homogenization Treatments；
S2, primary aluminium alloy cast ingot is carried out carrying out after extrusion molding being thermally treated resulting in alloy matrix aluminum；
S3, alloy matrix aluminum is polished after cleaning, plasma cladding process is carried out to aluminium alloy matrix surface, obtain pottery painting Layer, is cooled to room temperature, then carries out laser remolten to it, be air cooled to room temperature, is then incubated 5-6h at 110-130 DEG C, is cooled to room Described high-strength corrosion-resisting aluminium alloy extrusions is obtained after temperature.
6. according to claim 5 the preparation method of high-strength corrosion-resisting aluminium alloy extrusions it is characterised in that in S1, all Homogenize comprising the following steps that of processing procedure：By aluminium alloy cast ingot at 450-470 DEG C Homogenization Treatments 2-3h, then in 490- Homogenization Treatments 1.5-2.5h at 510 DEG C, then Homogenization Treatments 1-2h at 530-550 DEG C, obtains primary aluminium alloy cast ingot.
7. according to claim 5 the preparation method of high-strength corrosion-resisting aluminium alloy extrusions it is characterised in that in S2, heat Process comprises the following steps that：It is incubated 2-3h at primary aluminium alloy cast ingot after extrusion molding is placed in 300-320 DEG C, then lower the temperature To 220-240 DEG C, it is incubated 3-4h, is then cooled to 150-165 DEG C, be incubated 6-7h, after being air cooled to room temperature, obtain alloy matrix aluminum.
8. according to claim 5 the preparation method of high-strength corrosion-resisting aluminium alloy extrusions it is characterised in that plasma cladding The technological parameter processing is as follows：Synchronous powder feeding system, ionized gas flow is 2-5L/min, and protective gas is argon and argon flow amount is 6-9L/min, transfer arc voltage is 20-35V, and transfer current is 80-120A, and spray base is 10-25mm, and power is 1.8-3KW, sweeps Retouching speed is 5-10mm/s, and plasma arc spot diameter is 2-4mm, and plasma melting coating thickness is 1.5-2.5mm.
9. according to claim 5 the preparation method of high-strength corrosion-resisting aluminium alloy extrusions it is characterised in that laser remolten Technological parameter is as follows：Single-channel scanning, argon protects laser cell, and spot diameter is 2-3.5mm, and scanning speed is 5-8mm/s, power For 1.7-2.2KW.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1388009A (en) * 2001-05-30 2003-01-01 富士胶片株式会社 Supporting body for lithographic printing plate and lithographic printing plate originals
CN103103413A (en) * 2012-12-11 2013-05-15 芜湖恒坤汽车部件有限公司 Smelting preparation method of high-strength aluminum alloy profile
CN104046861A (en) * 2014-07-16 2014-09-17 江苏佳铝实业股份有限公司 High-strength corrosion-resistant aluminum alloy extruded material and manufacturing method thereof
CN105415212A (en) * 2015-11-25 2016-03-23 宁波大华砂轮有限公司 Metal wire polishing wheel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1388009A (en) * 2001-05-30 2003-01-01 富士胶片株式会社 Supporting body for lithographic printing plate and lithographic printing plate originals
CN103103413A (en) * 2012-12-11 2013-05-15 芜湖恒坤汽车部件有限公司 Smelting preparation method of high-strength aluminum alloy profile
CN104046861A (en) * 2014-07-16 2014-09-17 江苏佳铝实业股份有限公司 High-strength corrosion-resistant aluminum alloy extruded material and manufacturing method thereof
CN105415212A (en) * 2015-11-25 2016-03-23 宁波大华砂轮有限公司 Metal wire polishing wheel

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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