CN108559888A - A kind of anti-corrosion aluminum lamp stand and its processing method - Google Patents

A kind of anti-corrosion aluminum lamp stand and its processing method Download PDF

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Publication number
CN108559888A
CN108559888A CN201810385393.0A CN201810385393A CN108559888A CN 108559888 A CN108559888 A CN 108559888A CN 201810385393 A CN201810385393 A CN 201810385393A CN 108559888 A CN108559888 A CN 108559888A
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lamp stand
xeptf
aluminium alloy
corrosion aluminum
powder
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叶增辉
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Ningbo Morelux Pole Technology Ltd
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Ningbo Morelux Pole Technology Ltd
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Priority to CN201810385393.0A priority Critical patent/CN108559888A/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/007—Treatment of the fused masses in the supply runners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
    • B22D13/107—Means for feeding molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/20—Measures not previously mentioned for influencing the grain structure or texture; Selection of compositions therefor
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/48—Coating with alloys

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

The invention discloses a kind of anti-corrosion aluminum lamp stand and its processing methods, belong to technical field of metal material.Lamp stand ingredient is special to add FePC and XePtF on the basis of traditional aluminium alloy6The former is relatively easily-synthesized; it is of low cost; with high element adhesive force; Pt can not only be fused into alloy by the latter to be enhanced, and can be decomposited Xe and be protected, and curve is rotten and centrifugal forming is the key that crystal grain thinning; last surface treatment can form P Ni W coating on surface, prolong the service life.

Description

A kind of anti-corrosion aluminum lamp stand and its processing method
Technical field
The present invention relates to a kind of anti-corrosion aluminum lamp stand and its processing methods, belong to metal material field.
Background technology
National economy uplink, living standards of the people step up, and single villa is more and more, social infrastructure Level be also gradually to be promoted, either as the headlamp of garden or street lamp, using effect and service life are by increasingly The lamp stand of more concern, and in specific use environment, either lamps and lanterns itself or support is required for facing complexity more The weather such as the sleet of change, this requires lamp stands to need stronger resistant tarnishing, and therefore, the material and preparation process of lamp stand are basic Determine its quality.
Lamp stand is usually prepared by aluminium alloy, steel etc..Aluminium alloy refer to based on aluminium, be added a certain amount of magnesium, silicon, The addition element such as chromium simultaneously control impurity content and the alloy system that forms.Aluminium alloy has high intensity, high rigidity, light-weight It is therefore widely used in industry, especially in infrastructure, rifle with good ductility particularly suitable for making structural material It is occupied an important position in tool and household electric appliances.But the crackle generated in traditional aluminium alloy casting process be easy to cause material wave Take.
For the shortcomings of conventional aluminum alloy crack is more, elongation percentage is poor, publication number 106048379A disclose it is a kind of by Toughness, elongation percentage that the member such as rare earth, strontium usually improves product are added in aluminium alloy.However, only promoting the toughness of aluminium alloy, prolonging Reply complex environment can not be enabled aluminum alloy to by stretching the performances such as rate.
Invention content
In view of the above problems, the present invention provides high intensity, high rigidity, corrosion resistant aluminum lamp stand.
To achieve the goals above, the present invention uses following technical scheme：
A kind of anti-corrosion aluminum lamp stand, includes the component of following mass percent：Si：0.25-0.29%, FePC： 0.13-0.17%, Mn：0.17-0.23%, Cu：0.1-0.16%, Ni：0.12-0.18%, Mg：0.1-0.2%, XePtF6： 0.15-0.35%, surplus are Al and impurity.
The present invention replaces traditional rare earth element to enhance the comprehensive performance of alloy using FePC.FePC itself is easier to Synthesis, it is of low cost, but property is protruded, and with high element adhesive force, can be formed in alloy preparation process Assemble around " core ", and FePC itself contains the nonmetallic enhancing elements such as a large amount of carbon, nitrogen, then coordinate the big ring center of its molecule Fe elements, can control addition element well will not be excessive, at the same again play enhancing alloy comprehensive performance effect.FePC It is often used as catalyst, and in the present invention, the elements such as Mg and Ni, Si can be promoted to accelerate flowing, mix, form polynary knot Structure enhances alloying element cohesion, is macroscopically showing high intensity.
Meanwhile the present invention is special using addition XePtF6.First, XePtF6Itself carries the Pt elements of enhancing alloy property, And Pt is difficult to react with the impurity element in air.Furthermore XePtF6It is relatively stable at normal temperatures, and when alloy smelting, temperature It certainly will increase, at this point, XePtF6It can decompose and generate Xe gases, and Xe gas properties are extremely stable, will not occur with metal or alloy The gas mixing of H, O for being generated during alloy smelting formation, package alloy system can be discharged together by chemical reaction, Xe gas, And since the density of Xe gas itself is much larger than air, can be enriched with around alloy, a kind of gas blanket is formed, isolation is empty Gas avoids impurity element from being mixed into alloy system.Work as XePtF6Content ＜ 0.16% when, Pt elements enhance alloy property it is unknown It is aobvious, and the Xe gas generated can not also completely cut off alloy and air completely, easily cause Local Cracking；Work as XePtF6Content ＞ 0.36% When, F elements can damage alloy, be easy so that phase constitution is chaotic in alloy, architectural framework collapses.
Preferably, in alloying component, XePtF6Powder is respectively prepared with FePC.Powder processed can increase added material Specific surface area, while requirement of the equipment to added material volume in preparation process can be met.
Further preferably, the grain size of the powder is 30-70 μm.It controls powder diameter and is less than other metals, be conducive to Make when mixing powder be evenly distributed in aluminium alloy or semisolid slurry in.
The present invention additionally provides another technical solution while reasonable selection material mixture ratio：
A kind of preparation method of anti-corrosion aluminum lamp stand, includes the following steps：
(1) dispensing：Raw material is weighed by above-mentioned lamp stand ingredient, XePtF will be removed6It is mixed with all material outside phthalocyanine iron powder Merging is melt into aluminium alloy；
(2) curve is rotten：Aluminium alloy is continued to heat and be kept the temperature, then is cooled down, while being stirred using graphite rod, in song Line passage inner surface is uniformly laid with XePtF6Then aluminium alloy is directly injected into curved channel and collected, obtains semi solid slurry by powder Material；
(3) centrifugal forming：Semi solid slurry is subjected to centrifugal treating, while centrifuge center spray phthalocyanine iron powder, and Dry ice cold shock is carried out to centrifuge outer surface and obtains lamp stand semi-finished product；
(4) it is surface-treated：P-Ni-W coating is formed using chemical plating obtain lamp stand finished product in lamp stand surface of semi-finished.
During traditional alloy smelting, crystal grain refinement is a kind of good method for promoting alloy comprehensive performance, this Invention is by changing the change in shape for flowing through channel of aluminium alloy and carrying out crystal grain refinement using centrifugal force.Due to gravity, So that aluminium alloy is when curved channel by having higher flow velocity, in addition curved channel wall is to the obstruction of aluminium alloy and washes away work With primary grain is easy to be smashed and be evenly distributed in aluminium alloy repeatedly, and nucleus is largely proliferated at this time so that nascent crystalline phase is most It is refined eventually.When the content of addition element is more than the scope of the present invention, the not homoatomic that contains in different alloy liquid phases Cluster quantity increases, and when aluminium alloy flows through curved channel, the nucleation rate of primary grain increases, and the viscosity of aluminium alloy also can be corresponding Increase, mobility reduces, and is unfavorable for the broken of lath-shaped primary grain.Since the path setting in channel is general all longer, at this time By XePtF6Powder is layed on channel inner surface, can be collided with the aluminium alloy flowed through, the die break in aluminium alloy Meanwhile fusing into Pt in aluminium alloy, while Xe is discharged, take the foreign gas in aluminium alloy out of, and completely cuts off aluminium alloy and air Contact, avoids impurity element from being mixed into.
In centrifuge operation process, centrifuge center spray phthalocyanine iron powder.By the effect of centrifugal force, phthalocyanine iron powder End can be moved away from by slowly being oozed close to the semi solid slurry surface of rotation center outside the semi solid slurry of rotation center, at this During one, FePC powder de-agglomeration penetrates into the elements such as Fe, C, N in semi solid slurry, and it is polynary to form class with other compositions Phase, i.e. the metal -- Au symbolic animal of the birth year or metal-non-metal phase of incomplete fusion.And the internal layer of the alloy obtained through centrifugation contains high body The characteristics of single-phase primary crystal crystal grain of fraction and polynary phase particle form complementary enhancing region, macroscopically show high rigidity.Outside Layer is no or contains minute quantity primary crystal crystal grain, forms non-reinforcing region, has general hardness.And a large amount of tiny polynary phases Particle is the key that form this composite material with Gradient Effect.In centrifugal force field, the smaller polynary phase particle of density With the centripetal movement velocity more much bigger than single-phase primary crystal crystal grain, it collides simultaneously with single-phase primary crystal crystal grain during the motion It pushes the latter quickly to move together, both eventually leads to the violent segregation in internal layer.And crystal grain refinement is the basis of crystal grain segregation, There is no the refinement of crystal grain, crystal grain not to have larger density variation yet, stronger segregation can not be formed under centrifugal force.
Since alloy material is in interior of centrifugal device, rate of temperature fall is smaller, can carry out dry ice in centrifugation apparatus outer surface Cold shock, i.e., mix dry ice particles with compressed air, and heat is taken away using spray gun.
Preferably, in step (2), the temperature of the heating is 750-800 DEG C, soaking time 5-7h, cooling Temperature is 700-750 DEG C.Heating temperature general control is conducive to the refinement of crystal grain 15-45 DEG C on higher than aluminium alloy phase line.
Preferably, in step (2), the curved channel is " S " type channel or " bow " type channel.The length base in channel What this temperature-time difference for becoming semi solid slurry by aluminium alloy determined, and arc break or right angle break, all it is Broken Crystal Key.
Preferably, in step (4), the plating solution of the chemical plating is specially：20-30g/L NiCl4·6H2O、50- 70g/LK2WO4·2H2O、80-120g/LNa3C6H5O7、20-40g/LNH4Cl、20-30g/LK2HPO2H2O, pH adjusting agent.
Further preferably, control pH is 8.5-9.3 when step (4) chemical plating, temperature is 85-93 DEG C.Traditional Ni-P platings Although layer has preferable hardness and wearability, it cannot still meet environment complicated and changeable, the present invention, which is especially prepared, to be formed P-Ni-W coating has better hardness and corrosion resistance.
Preferably, in step (4), after the completion of chemical plating, also the organic-molybdenum containing 1-5% is coated in coating surface Basic hydraulic oil, and natural air drying.Coating cannot regenerate after being worn due to P-Ni-W coating, and coating is added with oil-soluble organic molybdenum Agent has good synergistic effect, may make up the duplicate protection to metallic matrix.Chemically react shape rapidly instead in corrosive environment At special overlay film, protective coating is not etched.
Compared with prior art, the invention has the advantages that：
(1) XePtF of the invention6It can decompose and generate Xe gases, and Xe gas properties are extremely stable, it will not be with metal or alloy It chemically reacts, the gas mixing of H, O for being generated during alloy smelting formation, package alloy can be discharged together by Xe gas System.
(2) XePtF of the invention6It can decompose and generate Xe gases, the density of Xe gas itself is much larger than air, can be in alloy week Enrichment is enclosed, a kind of gas blanket is formed, completely cuts off air, that is, avoids impurity element from being mixed into alloy system.
(3) FePC of the invention contains the nonmetallic enhancing element such as a large amount of carbon, nitrogen, coordinates the Fe at the big ring center of its molecule Element can control addition element content well, while play the effect of enhancing alloy comprehensive performance again.
(4) curve modification process of the invention can become alloy material in the time of semi solid slurry from aluminium alloy, into Row other compositions are adulterated, and broken primary grain.
Specific implementation mode
The following is specific embodiments of the present invention, and technical scheme of the present invention will be further described, but the present invention is simultaneously It is not limited to these embodiments.
Embodiment 1
Dispensing：Raw material is weighed by above-mentioned lamp stand ingredient, includes the component of following mass percent：Si：0.27%, phthalocyanine Iron：0.15%, Mn：0.2%, Cu：0.13%, Ni：0.15%, Mg：0.15%, XePtF6：0.26%, surplus is Al and miscellaneous Matter, by XePtF6The powder that grain size is 50 μm is respectively prepared with FePC, XePtF will be removed6With all material outside phthalocyanine iron powder It mixes and is melt into aluminium alloy.
Curve is rotten：Aluminium alloy is continued to be heated to 780 DEG C and keeps the temperature 6h, then is cooled to 730 DEG C, while using graphite rod It is stirred, XePtF is uniformly laid in " S " type curved channel inner surface6Then aluminium alloy is directly injected into curved channel by powder And collect, obtain semi solid slurry.
Centrifugal forming：Semi solid slurry is subjected to centrifugal treating, while centrifuge center spray phthalocyanine iron powder, by dry ice Particle is mixed with compressed air, using lance ejection in centrifuge outer surface, is carried out dry ice cold shock to it and is obtained lamp stand semi-finished product.
Surface treatment：The plating solution of chemical plating is configured, including：25g/L NiCl4·6H2O、60g/LK2WO4·2H2O、100g/ LNa3C6H5O7、30g/LNH4Cl、25g/LK2HPO2H2O, pH adjusting agent, control pH is 8.9, temperature is 88 DEG C, by lamp stand half Finished product immerses formation P-Ni-W coating in plating solution and obtains lamp stand finished product, finally coats the base containing 3% organic-molybdenum in coating surface Plinth hydraulic oil, and natural air drying.
Embodiment 2
Dispensing：Raw material is weighed by above-mentioned lamp stand ingredient, includes the component of following mass percent：Si：0.25%, phthalocyanine Iron：0.13%, Mn：0.17%, Cu：0.1%, Ni：0.12%, Mg：0.1%, XePtF6：0.16%, surplus be Al and impurity, By XePtF6The powder that grain size is 30 μm is respectively prepared with FePC, XePtF will be removed6It is mixed with all material outside phthalocyanine iron powder Merging is melt into aluminium alloy.
Curve is rotten：Aluminium alloy is continued to be heated to 780 DEG C and keeps the temperature 6h, then is cooled to 730 DEG C, while using graphite rod It is stirred, XePtF is uniformly laid in " S " type curved channel inner surface6Then aluminium alloy is directly injected into curved channel by powder And collect, obtain semi solid slurry.
Centrifugal forming：Semi solid slurry is subjected to centrifugal treating, while centrifuge center spray phthalocyanine iron powder, by dry ice Particle is mixed with compressed air, using lance ejection in centrifuge outer surface, is carried out dry ice cold shock to it and is obtained lamp stand semi-finished product.
Surface treatment：The plating solution of chemical plating is configured, including：25g/L NiCl4·6H2O、60g/LK2WO4·2H2O、100g/ LNa3C6H5O7、30g/LNH4Cl、25g/LK2HPO2H2O, pH adjusting agent, control pH is 8.9, temperature is 88 DEG C, by lamp stand half Finished product immerses formation P-Ni-W coating in plating solution and obtains lamp stand finished product, finally coats the base containing 3% organic-molybdenum in coating surface Plinth hydraulic oil, and natural air drying.
Embodiment 3
Dispensing：Raw material is weighed by above-mentioned lamp stand ingredient, includes the component of following mass percent：Si：0.29%, phthalocyanine Iron：0.17%, Mn：0.23%, Cu：0.16%, Ni：0.18%, Mg：0.2%, XePtF6：0.36%, surplus is Al and miscellaneous Matter, by XePtF6The powder that grain size is 70 μm is respectively prepared with FePC, XePtF will be removed6With all material outside phthalocyanine iron powder It mixes and is melt into aluminium alloy.
Curve is rotten：Aluminium alloy is continued to be heated to 780 DEG C and keeps the temperature 6h, then is cooled to 730 DEG C, while using graphite rod It is stirred, XePtF is uniformly laid in " S " type curved channel inner surface6Then aluminium alloy is directly injected into curved channel by powder And collect, obtain semi solid slurry.
Centrifugal forming：Semi solid slurry is subjected to centrifugal treating, while centrifuge center spray phthalocyanine iron powder, by dry ice Particle is mixed with compressed air, using lance ejection in centrifuge outer surface, is carried out dry ice cold shock to it and is obtained lamp stand semi-finished product.
Surface treatment：The plating solution of chemical plating is configured, including：25g/L NiCl4·6H2O、60g/LK2WO4·2H2O、100g/ LNa3C6H5O7、30g/LNH4Cl、25g/LK2HPO2H2O, pH adjusting agent, control pH is 8.9, temperature is 88 DEG C, by lamp stand half Finished product immerses formation P-Ni-W coating in plating solution and obtains lamp stand finished product, finally coats the base containing 3% organic-molybdenum in coating surface Plinth hydraulic oil, and natural air drying.
Embodiment 4
Dispensing：Raw material is weighed by above-mentioned lamp stand ingredient, includes the component of following mass percent：Si：0.27%, phthalocyanine Iron：0.15%, Mn：0.2%, Cu：0.13%, Ni：0.15%, Mg：0.15%, XePtF6：0.26%, surplus is Al and miscellaneous Matter, by XePtF6The powder that grain size is 50 μm is respectively prepared with FePC, XePtF will be removed6With all material outside phthalocyanine iron powder It mixes and is melt into aluminium alloy.
Curve is rotten：Aluminium alloy is continued to be heated to 750 DEG C and keeps the temperature 5h, then is cooled to 700 DEG C, while using graphite rod It is stirred, XePtF is uniformly laid in " bow " type curved channel inner surface6Then aluminium alloy is directly injected into curve and led to by powder Road is simultaneously collected, and semi solid slurry is obtained.
Centrifugal forming：Semi solid slurry is subjected to centrifugal treating, while centrifuge center spray phthalocyanine iron powder, by dry ice Particle is mixed with compressed air, using lance ejection in centrifuge outer surface, is carried out dry ice cold shock to it and is obtained lamp stand semi-finished product.
Surface treatment：The plating solution of chemical plating is configured, including：25g/L NiCl4·6H2O、60g/LK2WO4·2H2O、100g/ LNa3C6H5O7、30g/LNH4Cl、25g/LK2HPO2H2O, pH adjusting agent, control pH is 8.9, temperature is 88 DEG C, by lamp stand half Finished product immerses formation P-Ni-W coating in plating solution and obtains lamp stand finished product, finally coats the base containing 3% organic-molybdenum in coating surface Plinth hydraulic oil, and natural air drying.
Embodiment 5
Dispensing：Raw material is weighed by above-mentioned lamp stand ingredient, includes the component of following mass percent：Si：0.27%, phthalocyanine Iron：0.15%, Mn：0.2%, Cu：0.13%, Ni：0.15%, Mg：0.15%, XePtF6：0.26%, surplus is Al and miscellaneous Matter, by XePtF6The powder that grain size is 50 μm is respectively prepared with FePC, XePtF will be removed6With all material outside phthalocyanine iron powder It mixes and is melt into aluminium alloy.
Curve is rotten：Aluminium alloy is continued to be heated to 800 DEG C and keeps the temperature 7h, then is cooled to 750 DEG C, while using graphite rod It is stirred, XePtF is uniformly laid in " bow " type curved channel inner surface6Then aluminium alloy is directly injected into curve and led to by powder Road is simultaneously collected, and semi solid slurry is obtained.
Centrifugal forming：Semi solid slurry is subjected to centrifugal treating, while centrifuge center spray phthalocyanine iron powder, by dry ice Particle is mixed with compressed air, using lance ejection in centrifuge outer surface, is carried out dry ice cold shock to it and is obtained lamp stand semi-finished product.
Surface treatment：The plating solution of chemical plating is configured, including：25g/L NiCl4·6H2O、60g/LK2WO4·2H2O、100g/ LNa3C6H5O7、30g/LNH4Cl、25g/LK2HPO2H2O, pH adjusting agent, control pH is 8.9, temperature is 88 DEG C, by lamp stand half Finished product immerses formation P-Ni-W coating in plating solution and obtains lamp stand finished product, finally coats the base containing 3% organic-molybdenum in coating surface Plinth hydraulic oil, and natural air drying.
Embodiment 6
Dispensing：Raw material is weighed by above-mentioned lamp stand ingredient, includes the component of following mass percent：Si：0.27%, phthalocyanine Iron：0.15%, Mn：0.2%, Cu：0.13%, Ni：0.15%, Mg：0.15%, XePtF6：0.26%, surplus is Al and miscellaneous Matter, by XePtF6The powder that grain size is 50 μm is respectively prepared with FePC, XePtF will be removed6With all material outside phthalocyanine iron powder It mixes and is melt into aluminium alloy.
Curve is rotten：Aluminium alloy is continued to be heated to 780 DEG C and keeps the temperature 6h, then is cooled to 730 DEG C, while using graphite rod It is stirred, XePtF is uniformly laid in " S " type curved channel inner surface6Then aluminium alloy is directly injected into curved channel by powder And collect, obtain semi solid slurry.
Centrifugal forming：Semi solid slurry is subjected to centrifugal treating, while centrifuge center spray phthalocyanine iron powder, by dry ice Particle is mixed with compressed air, using lance ejection in centrifuge outer surface, is carried out dry ice cold shock to it and is obtained lamp stand semi-finished product.
Surface treatment：The plating solution of chemical plating is configured, including：20g/L NiCl4·6H2O、50g/LK2WO4·2H2O、80g/ LNa3C6H5O7、20g/LNH4Cl、20g/LK2HPO2H2O, pH adjusting agent, control pH is 8.5, temperature is 85 DEG C, by lamp stand half Finished product immerses formation P-Ni-W coating in plating solution and obtains lamp stand finished product, finally coats the base containing 1% organic-molybdenum in coating surface Plinth hydraulic oil, and natural air drying.
Embodiment 7
Dispensing：Raw material is weighed by above-mentioned lamp stand ingredient, includes the component of following mass percent：Si：0.27%, phthalocyanine Iron：0.15%, Mn：0.2%, Cu：0.13%, Ni：0.15%, Mg：0.15%, XePtF6：0.26%, surplus is Al and miscellaneous Matter, by XePtF6The powder that grain size is 50 μm is respectively prepared with FePC, XePtF will be removed6With all material outside phthalocyanine iron powder It mixes and is melt into aluminium alloy.
Curve is rotten：Aluminium alloy is continued to be heated to 780 DEG C and keeps the temperature 6h, then is cooled to 730 DEG C, while using graphite rod It is stirred, XePtF is uniformly laid in " S " type curved channel inner surface6Then aluminium alloy is directly injected into curved channel by powder And collect, obtain semi solid slurry.
Centrifugal forming：Semi solid slurry is subjected to centrifugal treating, while centrifuge center spray phthalocyanine iron powder, by dry ice Particle is mixed with compressed air, using lance ejection in centrifuge outer surface, is carried out dry ice cold shock to it and is obtained lamp stand semi-finished product.
Surface treatment：The plating solution of chemical plating is configured, including：20g/L NiCl4·6H2O、50g/LK2WO4·2H2O、80g/ LNa3C6H5O7、20g/LNH4Cl、20g/LK2HPO2H2O, pH adjusting agent, control pH is 9.3, temperature is 93 DEG C, by lamp stand half Finished product immerses formation P-Ni-W coating in plating solution and obtains lamp stand finished product, finally coats the base containing 5% organic-molybdenum in coating surface Plinth hydraulic oil, and natural air drying.
Embodiment 8
Lamp stand component phthalocyanine iron content with differing only in for embodiment 1, embodiment 8 is 0.01%.
Embodiment 9
Lamp stand component phthalocyanine iron content with differing only in for embodiment 1, embodiment 9 is 0.3%.
Embodiment 10
With differing only in for embodiment 1, the lamp stand component XePtF of embodiment 106Content is 0.01%.
Embodiment 11
With differing only in for embodiment 1, the lamp stand component XePtF of embodiment 116Content is 0.5%.
Comparative example 1
FePC is free of with the lamp stand component of differing only in for embodiment 1, comparative example 1.
Comparative example 2
XePtF is free of with the lamp stand component of differing only in for embodiment 1, comparative example 26。
Comparative example 3
With differing only in for embodiment 1, comparative example 3 is without the rotten operation of curve, directly by XePtF6Powder with Other materials mixed melting is at aluminium alloy.
Comparative example 4
With differing only in for embodiment 1, phthalocyanine iron powder is directly layed in song by comparative example 4 without centrifugal forming Line passage inner surface, by semi solid slurry moulding by casting.
Comparative example 5
Spray painting processing is only carried out with the lamp stand surface of differing only in for embodiment 1, comparative example 5.
The product of embodiment 1-11 and comparative example 1-5 are tested, its intensity, toughness, corrosion resistance and hardness are tested, The results are shown in Table 1：
Table 1：The performance of product in embodiment 1-11 and comparative example 1-5
There it can be seen that the XePtF of the special addition of the present invention6Changes of contents with FePC all can be to the final of product Performance, which generates, greatly to be changed, and the plating solution composition of chemical plating is also the key for extending product corrosion resisting property.
It is skilled to this field although present invention has been described in detail and some specific embodiments have been cited For technical staff, as long as it is obvious that can make various changes or correct without departing from the spirit and scope of the present invention.

Claims (8)

1. a kind of anti-corrosion aluminum lamp stand, which is characterized in that the lamp stand includes the component of following mass percent：Si：0.25- 0.29%, FePC：0.13-0.17%, Mn：0.17-0.23%, Cu：0.1-0.16%, Ni：0.12-0.18%, Mg：0.1- 0.2%, XePtF6：0.16-0.36%, surplus are Al and impurity.
2. a kind of anti-corrosion aluminum lamp stand according to claim 1, which is characterized in that the XePtF6Distinguish with FePC Powder is made.
3. a kind of anti-corrosion aluminum lamp stand according to claim 2, which is characterized in that the grain size of the powder is 30-70 μ m。
4. a kind of preparation method of anti-corrosion aluminum lamp stand as described in claim 1, which is characterized in that the preparation method packet Include following steps：
(1) dispensing：Lamp stand ingredient as described in claim 1 weighs raw material, will remove XePtF6With all materials outside phthalocyanine iron powder Material mixes and is melt into aluminium alloy；
(2) curve is rotten：Aluminium alloy is continued to heat and be kept the temperature, then is cooled down, while being stirred using graphite rod, it is logical in curve Road inner surface is uniformly laid with XePtF6Then aluminium alloy is directly injected into curved channel and collected, obtains semi solid slurry by powder；
(3) centrifugal forming：Semi solid slurry is subjected to centrifugal treating, while centrifuge center spray phthalocyanine iron powder, and to from Scheming outer surface carries out dry ice cold shock and obtains lamp stand semi-finished product；
(4) it is surface-treated：P-Ni-W coating is formed using chemical plating obtain lamp stand finished product in lamp stand surface of semi-finished.
5. a kind of preparation method of anti-corrosion aluminum lamp stand according to claim 4, which is characterized in that step (2) is described The temperature of heating is 750-800 DEG C, soaking time 5-7h, and the temperature of cooling is 700-750 DEG C.
6. a kind of preparation method of anti-corrosion aluminum lamp stand according to claim 4, which is characterized in that step (4) is described The plating solution of chemical plating is specially：20-30g/L NiCl4·6H2O、50-70g/LK2WO4·2H2O、80-120g/LNa3C6H5O7、 20-40g/LNH4Cl、20-30g/LK2HPO2H2O, pH adjusting agent.
7. a kind of preparation method of anti-corrosion aluminum lamp stand according to claim 4, which is characterized in that step (4) is described Control pH is 8.5-9.3 when chemical plating, temperature is 85-93 DEG C.
8. a kind of preparation method of anti-corrosion aluminum lamp stand according to claim 4, which is characterized in that step (4) chemistry After plating, the basic hydraulic oil of the organic-molybdenum containing 1-5%, and natural air drying are also coated in coating surface.
CN201810385393.0A 2018-04-26 2018-04-26 A kind of anti-corrosion aluminum lamp stand and its processing method Pending CN108559888A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102517476A (en) * 2011-12-15 2012-06-27 贵州华科铝材料工程技术研究有限公司 High strength aluminum alloy capable of reducing porosity and dispersed shrinkage and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102517476A (en) * 2011-12-15 2012-06-27 贵州华科铝材料工程技术研究有限公司 High strength aluminum alloy capable of reducing porosity and dispersed shrinkage and preparation method thereof

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