CN105734370A - Novel high-strength corrosion-resistant data recorder - Google Patents

Novel high-strength corrosion-resistant data recorder Download PDF

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CN105734370A
CN105734370A CN201610220084.9A CN201610220084A CN105734370A CN 105734370 A CN105734370 A CN 105734370A CN 201610220084 A CN201610220084 A CN 201610220084A CN 105734370 A CN105734370 A CN 105734370A
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protective housing
alloy
aluminum
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sheet material
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董超超
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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
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
    • 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
    • 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
    • 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
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
    • 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
    • C22F1/057—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 copper 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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a novel high-strength corrosion-resistant data recorder. The novel high-strength corrosion-resistant data recorder comprises a protection shell. The protection shell is composed of, by weight, 0.2% of Mg, 2.0% of Si, 4.0% of Cu, 0.2% of Mn, 0.2% of Fe, 0.1% of Zr, 0.1% of Er, 0.01% of Cr, 0.01% of Ni, 0.1% of Ti, and the balance Al. The protection shell is obtained through the steps that (1) smelting is conducted; (2) refining modifying agents are added, that is, the three metal refining modifying agents of Al-5Ti-B, Al-1OSr and Re are added; (3) a cast ingot is formed through 2-h standing at 100 MPa; (4) five-pass hot rolling is conducted, and three-pass cold rolling is conducted under ultrasonic vibration; (5) C laser and V laser are used for modification; and (6) surface treatment is conducted with an octadecyltrichlorosilane solution, and a finished product is obtained. Many measures are used for modifying and treating materials of the protection shell, the protection shell is made to maintain the integrity of an oxidation film under severe working condition of corrosion, failures of metal are avoided, and the requirement of current industrial development is met.

Description

The anticorrosive data logger of novel high-strength
Technical field
The present invention relates to electronic device field, particularly relate to the anticorrosive data logger of novel high-strength.
Background technology
Aluminium alloy is a most widely used class non-ferrous metal structural material in industry, Aeronautics and Astronautics, automobile, machine-building, Boats and ships and chemical industry are widely applied, is divided into 1000 series, 2000 series, 3000 series ... 9000 series.Relevant In technology, 6000 series alloys mainly contain magnesium and two kinds of elements of silicon, have, low melting point, corrosion resistance, heat-resisting, wear-resisting, Easily coating and the advantage such as processability is good, but, 6000 series alloys seldom have steel strength and mouldability so that aluminum conjunction Gold cannot replace the steel weight with alleviator equipment completely, reduces energy resource consumption and pollutant emission.And along with aluminium alloy The development of application, it is desirable to aluminium alloy and can apply different field and environment, and therefore requirement corrosion proof to aluminium alloy is more and more higher. Although aluminium alloy its surface under natural environment can generate layer oxide film to resist corrosion, but aluminum alloy surface in natural environment The thickness of oxidation film about 4nm generated, loose porous and structure is the most uneven, corrodes under severe operating conditions or from oxide-film Hole, or occur from the fray of oxide-film, cause metal failure, it is impossible to meet the requirement of current industrial development.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide the anticorrosive data logger of novel high-strength, solve aluminium alloy and do not have Steel strength and the technical problem of mouldability.
For solving above-mentioned technical problem, the technical solution used in the present invention is the anticorrosive data logger of novel high-strength, including protecting Protective case body, described protective housing includes Mg0.2%, Si 2.0%, Cu4.0%, Mn0.2%, Fe0.2%, Zr0.1% by weight percentage, Er0.1%, Cr0.01%, Ni0.01%, Ti0.1%, Al surplus.
Novel high-strength anticorrosive data logger preparation method, described protective housing is the shell being made up of following steps:
(1) heating furnace used in pre-hot smelting at 300 DEG C and fine aluminium 1～2h；(2) fine aluminium after preheating is at decompression state Lower smelting temperature be the heating furnace of 750 DEG C is completely melt after add monocrystal silicon granule, add in aluminum bronze after monocrystal silicon particles fuse Between alloy, aluminum manganese intermediate alloy, aluminium chromium hardener, aluminum nickel intermediate alloy, ferro-aluminum intermediate alloy, aluminium zirconium hardener and A small amount of rare earth element er, and be incubated a period of time and be completely melt to intermediate alloy, after being sufficiently stirred for, heating furnace is heated up, add aluminum Titanium intermediate alloy is completely melt to aluminum titanium intermediate alloy, is cooled to 750 DEG C, skims, and adds pure magnesium, protects under conditions of vacuum Temperature 30～40min；(4) tri-kinds of metal fining modifiers of Al-5Ti-B, Al-lOSr and RE are added, the weight hundred that three adds Proportion by subtraction ratio is 8:1:3；(5) add refining agent fully to react, degasification, slagging-off,；(6) melted pouring metal melt is to Preheated to the crucible of about 300 DEG C stands under conditions of 100MPa 2h, form ingot casting；(7) described ingot casting cuts into conjunction Carrying out the homogenizing annealing of 12 hours after suitable size under conditions of 550 DEG C, stove is cooled to room temperature；(8) described ingot casting is warming up to It is incubated 3 hours after 420 DEG C, carries out the hot rolling of five passages, after each passage hot rolling is complete, be incubated half an hour at 530 DEG C；(9) heat Carrying out the cold rolling of three passages after rolling, aluminium alloy one end is relatively fixed and connects ultrasonic vibration apparatus, and the other end enters in milling train, Excited frequency is 12kHz, aluminium alloy supersonic vibration pressurized extend, cold rolling after carry out 2 hours moving back at 240 DEG C to alloy Fire processes, and obtains certain thickness aluminum alloy plate materials；(10) aluminum alloy plate materials is carried out halfhour solution treatment at 540 DEG C, Then shrend；(11) aluminum alloy plate materials carries out the artificial aging of 5 hours at 180 DEG C；(12) by equal for mixed-powder C and V The even surface being applied in aluminum alloy plate materials, uses crossing current continuous wave Cq laser instrument that aluminum alloy plate materials carries out laser treatment modified, makes Obtain and while aluminum alloy sheet material surface forms nanoscale impression, mixed-powder C and V melted the surface being covered in aluminum alloy plate materials, Using argon to protect in processing procedure, its laser process parameter area is: laser power 1.7kw, sweep speed 13mn/s, Beam spot diameter, is 4mm.(13) configuration hydrochloric acid volume is the hydrochloric acid solution of 2:1 with deionized water volume ratio, with ethanol as solute The octadecyl trichlorosilane alkane solution of configuration 5mM, puts into process 2min in hydrochloric acid solution by the aluminium alloy obtained, use after having processed Sample, to remove unnecessary hydrochloric acid, is positioned over octadecyl trichlorosilane alkane solution by a large amount of deionized water rinsing aluminum alloy surface subsequently Middle immersion 12h, the sample of preparation is dried 30min at 80 DEG C；(14) punching press plastotype.
Beneficial effects of the present invention:
1, the ratio of each element weight percent of Reasonable adjustment so that formed in protective housing and keep peak aging strengthening ability Mg2Si phase, increases its elongation percentage while strengthening protective housing intensity.Add the Cu element of proper proportion, reduce natrual ageing pair The adverse effect of material property, forms Mg more tiny, more2Si phase (acicular beta " phase), after avoiding adding Cu element simultaneously Reduce protective housing corrosion stability.Add trace Mn and Cr, disperse phase can be produced, suppress alloy recrystallization, improve alloy strength, Increase Alloy Anti intercrystalline corrosion ability, improve alloy property.Appropriate rare earth element adds in protective housing, can be reduced or eliminated Gas in fusion-casting process and objectionable impurities, increase mobility, crystal grain thinning, accelerated ag(e)ing process, and appropriate rare earth unit Element and other elements cooperate and can effectively improve mechanical property and the corrosive nature of alloy.
2, under decompression state, melting protective housing can be effectively reduced smelting temperature, saves resource.In simultaneously in order to keep heater Pressure, heater needs to pour into a certain amount of noble gas discharging while gas, and first noble gas is passed directly into metal In liquation, form bubble, drive the impurity in molten metal to move up, jointly discharge with gas, go the removal of impurity, the most lazy Property gas force in fusion process produce harmful gas discharge therewith, prevent oxygen etc. have oxidizing property gas enter heating Oxidized metal liquation in device.
3, three kinds of fining modifiers have positive role to protective housing, but have some limitations when being single use, such as list Solely add Sr and make Metamorphism treatment, the tendency aggravation of alloy air-breathing, drop low-alloyed compactness, be easily formed serious columanar structure, lead Causing mechanical property to decline on the contrary, rare earth easily aoxidizes, and modification effect is held time short etc.；And the fade resistance of Al-5Ti-B fining agent Can be the most unsatisfactory, and easily poisoned by Zr atom and lose the ability of crystal grain thinning, it is impossible to give full play to it respective Advantage.And triplicity is used and can give full play to respective advantage while overcoming the defect itself having.
4, melted pouring metal melt is to having been warmed up standing under conditions of 100MPa 2h to the crucible of about 300 DEG C, Can prevent from metal liquid process of setting is formed the ingot casting of open structure, thus affect the intensity of protective housing, simultaneously at high pressure Under the conditions of advantageously form the ingot casting of compact texture, strengthen the intensity of protective housing.
5, protective housing supersonic vibration pressurized at the vibrating amplitude extends, and can reduce the frictional force being subject in the operation of rolling, thus drop The low-frictional force impact on protective housing plate surface, cold rolling relative to static state, the cold rolling protective housing surface of supersonic vibration is more Smooth, be conducive to carrying out the operation of next step.
6, by mixed-powder C and V uniform application in the surface of protective housing sheet material, use crossing current continuous wave Cq laser instrument to guarantor It is modified that protective case body sheet material carries out laser treatment, will mixing while effectively making protective housing plate surface form nanoscale impression Powder C and V melts the surface being covered in protective housing sheet material, and protective housing plate surface forms nano level pit, increases and protects The surface area of protective case body sheet material, makes the octadecyl trichlorosilane alkane solution of next step be easier to enter while improving frictional force Protective housing plate surface, forms the micro structure of different morphologies on protective housing surface, and self assembly possesses anticorrosion the most from the teeth outwards The silane film of anti-wear performance, thus change the surface nature of protective housing sheet material, and the C-V that protective housing plate surface is formed covers Film can be effectively improved protective housing sheet material antioxygenic property at high temperature, changes the surface nature of protective housing sheet material.
Detailed description of the invention
The invention will be further described with the following Examples.
Embodiment one
The anticorrosive data logger of novel high-strength, including protective housing, described protective housing includes Mg0.2% by weight percentage, Si 2.0%, more than Cu4.0%, Mn0.2%, Fe0.2%, Zr0.1%, Er0.1%, Cr0.01%, Ni0.01%, Ti0.1%, Al Amount.
Novel high-strength anticorrosive data logger preparation method, described protective housing is the shell being made up of following steps:
(1) heating furnace used in pre-hot smelting at 300 DEG C and fine aluminium 1～2h；(2) fine aluminium after preheating is at decompression state Lower smelting temperature be the heating furnace of 750 DEG C is completely melt after add monocrystal silicon granule, add in aluminum bronze after monocrystal silicon particles fuse Between alloy, aluminum manganese intermediate alloy, aluminium chromium hardener, aluminum nickel intermediate alloy, ferro-aluminum intermediate alloy, aluminium zirconium hardener and A small amount of rare earth element er, and be incubated a period of time and be completely melt to intermediate alloy, after being sufficiently stirred for, heating furnace is heated up, add aluminum Titanium intermediate alloy is completely melt to aluminum titanium intermediate alloy, is cooled to 750 DEG C, skims, and adds pure magnesium, protects under conditions of vacuum Temperature 30～40min；(4) tri-kinds of metal fining modifiers of Al-5Ti-B, Al-lOSr and RE are added, the weight hundred that three adds Proportion by subtraction ratio is 8:1:3；(5) add refining agent fully to react, degasification, slagging-off,；(6) melted pouring metal melt is to Preheated to the crucible of about 300 DEG C stands under conditions of 100MPa 2h, form ingot casting；(7) described ingot casting cuts into conjunction Carrying out the homogenizing annealing of 12 hours after suitable size under conditions of 550 DEG C, stove is cooled to room temperature；(8) described ingot casting is warming up to It is incubated 3 hours after 420 DEG C, carries out the hot rolling of five passages, after each passage hot rolling is complete, be incubated half an hour at 530 DEG C；(9) heat Carrying out the cold rolling of three passages after rolling, aluminium alloy one end is relatively fixed and connects ultrasonic vibration apparatus, and the other end enters in milling train, Excited frequency is 12kHz, aluminium alloy supersonic vibration pressurized extend, cold rolling after carry out 2 hours moving back at 240 DEG C to alloy Fire processes, and obtains certain thickness aluminum alloy plate materials；(10) aluminum alloy plate materials is carried out halfhour solution treatment at 540 DEG C, Then shrend；(11) aluminum alloy plate materials carries out the artificial aging of 5 hours at 180 DEG C；(12) by equal for mixed-powder C and V The even surface being applied in aluminum alloy plate materials, uses crossing current continuous wave Cq laser instrument that aluminum alloy plate materials carries out laser treatment modified, makes Obtain and while aluminum alloy sheet material surface forms nanoscale impression, mixed-powder C and V melted the surface being covered in aluminum alloy plate materials, Using argon to protect in processing procedure, its laser process parameter area is: laser power 1.7kw, sweep speed 13mn/s, Beam spot diameter, is 4mm.(13) configuration hydrochloric acid volume is the hydrochloric acid solution of 2:1 with deionized water volume ratio, with ethanol as solute The octadecyl trichlorosilane alkane solution of configuration 5mM, puts into process 2min in hydrochloric acid solution by the aluminium alloy obtained, use after having processed Sample, to remove unnecessary hydrochloric acid, is positioned over octadecyl trichlorosilane alkane solution by a large amount of deionized water rinsing aluminum alloy surface subsequently Middle immersion 12h, the sample of preparation is dried 30min at 80 DEG C；(14) punching press plastotype.
The tensile strength of protective housing sheet material, yield strength, percentage elongation and the Brinell hardness made be respectively 398.4MPa, 325.8MPa, 20%, 112HB.
The ratio of each element weight percent of Reasonable adjustment so that formed in protective housing and keep peak aging strengthening ability Mg2Si phase, increases its elongation percentage while strengthening protective housing intensity.Add the Cu element of proper proportion, reduce natrual ageing pair The adverse effect of material property, forms Mg more tiny, more2Si phase (acicular beta " phase), after avoiding adding Cu element simultaneously Reduce protective housing corrosion stability.Add trace Mn and Cr, disperse phase can be produced, suppress alloy recrystallization, improve alloy strength, Increase Alloy Anti intercrystalline corrosion ability, improve alloy property.Appropriate rare earth element adds in protective housing, can be reduced or eliminated Gas in fusion-casting process and objectionable impurities, increase mobility, crystal grain thinning, accelerated ag(e)ing process, and appropriate rare earth unit Element and other elements cooperate and can effectively improve mechanical property and the corrosive nature of alloy.
Under decompression state, melting protective housing can be effectively reduced smelting temperature, saves resource.In simultaneously in order to keep heater Pressure, heater needs to pour into a certain amount of noble gas while discharging gas, and first noble gas is passed directly into metal and melts In liquid, form bubble, drive the impurity in molten metal to move up, jointly discharge with gas, go the removal of impurity, additionally inertia Gas forces the harmful gas produced in fusion process to be discharged therewith, and the gas preventing oxygen etc. to have oxidizing property enters heater Middle oxidized metal liquation.
Three kinds of fining modifiers have positive role to protective housing, but have some limitations when being single use, as individually Add Sr and make Metamorphism treatment, the tendency aggravation of alloy air-breathing, drop low-alloyed compactness, be easily formed serious columanar structure, cause Mechanical property declines on the contrary, and rare earth easily aoxidizes, and modification effect is held time short etc.；And the anti-decay property of Al-5Ti-B fining agent The most unsatisfactory, and easily poisoned by Zr atom and lose the ability of crystal grain thinning, it is impossible to give full play to it respective excellent Point.And triplicity is used and can give full play to respective advantage while overcoming the defect itself having.From form, Relative to single use fining modifier, use three kinds of fining modifiers can strengthen the tensile strength of protective housing, surrender by force simultaneously Degree, percentage elongation and Brinell hardness, after wherein in table, data are interpolation fining modifier and without protective housing after fining modifier Comparison in various performance indications, uses the tensile strength of the protective housing of three kinds of fining modifiers to add 6.892% simultaneously, Yield strength adds 5.974%, percentage elongation add 18.0% and Brinell hardness add 9.821%.
Melted pouring metal melt, to having been warmed up standing under conditions of 100MPa 2h to the crucible of about 300 DEG C, can be prevented Metal liquid process of setting is only formed the ingot casting of open structure, thus affects the intensity of protective housing sheet material, simultaneously at high pressure Under the conditions of advantageously form the ingot casting of compact texture, strengthen the intensity of protective housing.
Protective housing supersonic vibration pressurized at the vibrating amplitude extends, and can reduce the frictional force being subject in the operation of rolling, thus reduce The frictional force impact on protective housing plate surface, cold rolling relative to static state, protective housing surface more light that supersonic vibration is cold rolling Sliding, be conducive to carrying out the operation of next step.
By mixed-powder C and V uniform application in the surface of protective housing sheet material, use crossing current continuous wave Cq laser instrument to containment vessel It is modified that body sheet material carries out laser treatment, can effectively make protective housing plate surface be formed mixed-powder while nanoscale impression C and V melts the surface being covered in protective housing sheet material, and protective housing plate surface forms nano level pit, increases containment vessel The surface area of body sheet material, makes the octadecyl trichlorosilane alkane solution of next step be easier to enter protection while improving frictional force Housing plate surface, forms the micro structure of different morphologies on protective housing surface, and self assembly possesses anticorrosion antiwear the most from the teeth outwards The silane film of performance, thus change the surface nature of protective housing sheet material, and the C-V overlay film that protective housing plate surface is formed can It is effectively improved protective housing sheet material antioxygenic property at high temperature, changes the surface nature of protective housing sheet material.
In order to measure protective housing Surface Creation film layer corrosion resisting property in saline solution, use Tafel curve and electrochemical impedance spectroscopy Evaluating the antiseptic property of thin film, before carrying out electro-chemical test, all samples all soaks a period of time in NaCl solution, electricity Chemical impedance spectrum and Plan Curve stably measure afterwards at open circuit point position (OCP), obtain the corrosion potential of protective housing sheet material (Ecorr) and corrosion electric current density (Icorr) numerical value, it is considered that the tendency of the highest sample etches of corrosion potential is the least, and rotten The corrosion rate of erosion electric current density the least expression sample is the least, and corrosion resisting property is the best.Measure the corrosion of the protective housing sheet material obtained Current potential (Ecorr) it is-545.8mV, the corrosion electric current density (I of protective housing sheet materialcorr) it is 1.421 μ Acm-2, and without place The protective housing of reason is-1057mV, the corrosion electric current density (I of undressed protective housingcorr) it is 4.303 μ Acm-2, by This understands, and the protective housing sheet material corrosion resistance of the present invention has promoted compared to untreated protective housing.
Embodiment two
The anticorrosive data logger of novel high-strength, including protective housing, described protective housing includes Mg0.6% by weight percentage, Si3.5%, Cu6.0%, Mn0.3%, Fe0.3%, Zr0.5%, Er0.5%, Cr0.02%, Ni0.02%, Ti0.2%, Al surplus.
Novel high-strength anticorrosive data logger preparation method, described protective housing is the shell being made up of following steps:
(1) heating furnace used in 320 times pre-hot smeltings and fine aluminium 1～2h；(2) the fine aluminium melting under a reduced pressure after preheating Temperature be the heating furnace of 750 DEG C is completely melt after add monocrystal silicon granule, add after monocrystal silicon particles fuse aluminum bronze intermediate alloy, Aluminum manganese intermediate alloy, aluminium chromium hardener, aluminum nickel intermediate alloy, ferro-aluminum intermediate alloy, aluminium zirconium hardener and a small amount of rare earth Element erbium, and be incubated a period of time and be completely melt to intermediate alloy, after being sufficiently stirred for, heating furnace is heated up, add and close in the middle of aluminum titanium Gold is completely melt to aluminum titanium intermediate alloy, is cooled to 750 DEG C, skims, adds pure magnesium, is incubated 30～40min under conditions of vacuum； (4) adding tri-kinds of metal fining modifiers of Al-5Ti-B, Al-lOSr and RE, the percentage by weight ratio that three adds is 8:1:3； (5) add refining agent fully to react, degasification, slagging-off,；(6) melted pouring metal melt is to having been warmed up to 300 DEG C of left sides Right crucible stands under conditions of 100MPa 2.5h, forms ingot casting；(7) in 550 DEG C after described ingot casting cuts into suitable dimension Under conditions of carry out the homogenizing annealing of 12 hours, stove is cooled to room temperature；(8) it is incubated 3 hours after described ingot casting is warming up to 420 DEG C, Carry out the hot rolling of five passages, after each passage hot rolling is complete, be incubated half an hour at 530 DEG C；(9) three passages are carried out after hot rolling Cold rolling, aluminium alloy one end is relatively fixed and connects ultrasonic vibration apparatus, and the other end enters in milling train, and excited frequency is 14kHz, Aluminium alloy supersonic vibration pressurized extends, cold rolling after alloy carried out at 240 DEG C the annealing of 2～3 hours, obtain certain The aluminum alloy plate materials of thickness；(10) aluminum alloy plate materials is carried out halfhour solution treatment, then shrend at 540 DEG C；(11) Aluminum alloy plate materials carries out the artificial aging of 5 hours at 180 DEG C；(12) by mixed-powder C and V uniform application in aluminium alloy plate The surface of material, uses crossing current continuous wave Cq laser instrument that aluminum alloy plate materials carries out laser treatment modified so that aluminum alloy sheet material surface While forming nanoscale impression, mixed-powder C and V is melted the surface being covered in aluminum alloy plate materials, processing procedure uses argon Gas is protected, and its laser process parameter area is: laser power 2.0kw, sweep speed 15mn/s, beam spot diameter, is 4mm. (13) configuration hydrochloric acid volume is the hydrochloric acid solution of 2:1 with deionized water volume ratio, the octadecane being solute configuration 5mM with ethanol Base trichlorosilane solution, puts into the aluminium alloy obtained process 2min in hydrochloric acid solution, uses a large amount of deionized water rinsing after having processed Sample, to remove unnecessary hydrochloric acid, is positioned in octadecyl trichlorosilane alkane solution immersion 12h, preparation by aluminum alloy surface subsequently Sample at 80 DEG C be dried 30min；(14) punching press plastotype.
The tensile strength of protective housing sheet material, yield strength, percentage elongation and the Brinell hardness made be respectively 427.2MPa, 341.8MPa, 16%, 107HB.
Three kinds of fining modifiers have positive role to protective housing, but have some limitations when being single use, as individually Add Sr and make Metamorphism treatment, the tendency aggravation of alloy air-breathing, drop low-alloyed compactness, be easily formed serious columanar structure, cause Mechanical property declines on the contrary, and rare earth easily aoxidizes, and modification effect is held time short etc.；And the anti-decay property of Al-5Ti-B fining agent The most unsatisfactory, and easily poisoned by Zr atom and lose the ability of crystal grain thinning, it is impossible to give full play to it respective excellent Point.And triplicity is used and can give full play to respective advantage while overcoming the defect itself having.From form, Relative to single use fining modifier, use three kinds of fining modifiers can strengthen the tensile strength of protective housing, surrender by force simultaneously Degree, percentage elongation and Brinell hardness, after wherein in table, data are interpolation fining modifier and without protective housing after fining modifier Comparison in various performance indications.
The ratio of each element weight percent of Reasonable adjustment so that formed in protective housing and keep peak aging strengthening ability Mg2Si phase, increases its elongation percentage while strengthening protective housing intensity.Add the Cu element of proper proportion, reduce natrual ageing pair The adverse effect of material property, forms Mg more tiny, more2Si phase (acicular beta " phase), after avoiding adding Cu element simultaneously Reduce protective housing corrosion stability.Add trace Mn and Cr, disperse phase can be produced, suppress alloy recrystallization, improve alloy strength, Increase Alloy Anti intercrystalline corrosion ability, improve alloy property.Appropriate rare earth element adds in protective housing, can be reduced or eliminated Gas in fusion-casting process and objectionable impurities, increase mobility, crystal grain thinning, accelerated ag(e)ing process, and appropriate rare earth unit Element and other elements cooperate and can effectively improve mechanical property and the corrosive nature of alloy.
Under decompression state, melting protective housing can be effectively reduced smelting temperature, saves resource.In simultaneously in order to keep heater Pressure, heater needs to pour into a certain amount of noble gas while discharging gas, and first noble gas is passed directly into metal and melts In liquid, form bubble, drive the impurity in molten metal to move up, jointly discharge with gas, go the removal of impurity, additionally inertia Gas forces the harmful gas produced in fusion process to be discharged therewith, and the gas preventing oxygen etc. to have oxidizing property enters heater Middle oxidized metal liquation.
Three kinds of fining modifiers have positive role to protective housing, but have some limitations when being single use, as individually Add Sr and make Metamorphism treatment, the tendency aggravation of alloy air-breathing, drop low-alloyed compactness, be easily formed serious columanar structure, cause Mechanical property declines on the contrary, and rare earth easily aoxidizes, and modification effect is held time short etc.；And the anti-decay property of Al-5Ti-B fining agent The most unsatisfactory, and easily poisoned by Zr atom and lose the ability of crystal grain thinning, it is impossible to give full play to it respective excellent Point.And triplicity is used and can give full play to respective advantage while overcoming the defect itself having.From form, Relative to single use fining modifier, use three kinds of fining modifiers can strengthen the tensile strength of protective housing, surrender by force simultaneously Degree, percentage elongation and Brinell hardness, after wherein in table, data are interpolation fining modifier and without protective housing after fining modifier Comparison in various performance indications, uses the tensile strength of the protective housing of three kinds of fining modifiers to add 7.234% simultaneously, Yield strength adds 6.704%, percentage elongation add 20.0% and Brinell hardness add 10.758%.
Melted pouring metal melt, can to having been warmed up standing under conditions of 100MPa 2.5h to the crucible of about 300 DEG C Prevent from metal liquid process of setting is formed the ingot casting of open structure, thus affect the intensity of protective housing sheet material, simultaneously at high pressure Under conditions of advantageously form the ingot casting of compact texture, strengthen the intensity of protective housing.
Protective housing supersonic vibration pressurized at the vibrating amplitude extends, and can reduce the frictional force being subject in the operation of rolling, thus reduce The frictional force impact on protective housing plate surface, cold rolling relative to static state, protective housing surface more light that supersonic vibration is cold rolling Sliding, be conducive to carrying out the operation of next step.
By mixed-powder C and V uniform application in the surface of protective housing sheet material, use crossing current continuous wave Cq laser instrument to containment vessel It is modified that body sheet material carries out laser treatment, can effectively make protective housing plate surface be formed mixed-powder while nanoscale impression C and V melts the surface being covered in protective housing sheet material, and protective housing plate surface forms nano level pit, increases containment vessel The surface area of body sheet material, makes the octadecyl trichlorosilane alkane solution of next step be easier to enter protection while improving frictional force Housing plate surface, forms the micro structure of different morphologies on protective housing surface, and self assembly possesses anticorrosion antiwear the most from the teeth outwards The silane film of performance, thus change the surface nature of protective housing sheet material, and the C-V overlay film that protective housing plate surface is formed can It is effectively improved protective housing sheet material antioxygenic property at high temperature, changes the surface nature of protective housing sheet material.
In order to measure protective housing Surface Creation film layer corrosion resisting property in saline solution, use Tafel curve and electrochemical impedance spectroscopy Evaluating the antiseptic property of thin film, before carrying out electro-chemical test, all samples all soaks a period of time in NaCl solution, electricity Chemical impedance spectrum and Plan Curve stably measure afterwards at open circuit point position (OCP), obtain the corrosion potential of protective housing sheet material (Ecorr) and corrosion electric current density (Icorr) numerical value, it is considered that the tendency of the highest sample etches of corrosion potential is the least, and rotten The corrosion rate of erosion electric current density the least expression sample is the least, and corrosion resisting property is the best.Measure the corrosion of the protective housing sheet material obtained Current potential (Ecorr) it is-564.2mV, the corrosion electric current density (I of protective housing sheet materialcorr) it is 1.145 μ Acm-2, and without place The protective housing of reason is-1057mV, the corrosion electric current density (I of undressed protective housingcorr) it is 4.303 μ Acm-2, by This understands, and the protective housing sheet material corrosion resistance of the present invention has promoted compared to untreated protective housing.
Embodiment three
The anticorrosive data logger of novel high-strength, including protective housing, described protective housing includes Mg0.6% by weight percentage, Si2.0%, Cu5.0%, Mn0.25%, Fe0.25%, Zr0.3%, Er0.3%, Cr0.015%, Ni0.015%, Ti0.015%, Al surplus.
Novel high-strength anticorrosive data logger preparation method, described protective housing is the shell being made up of following steps:
(1) heating furnace used in pre-hot smelting at 330 DEG C and fine aluminium 1～2h；(2) fine aluminium after preheating melts under a reduced pressure Refine and add monocrystal silicon granule after the heating furnace that temperature is 750 DEG C is completely melt, add after monocrystal silicon particles fuse and close in the middle of aluminum bronze Gold, aluminum manganese intermediate alloy, aluminium chromium hardener, aluminum nickel intermediate alloy, ferro-aluminum intermediate alloy, aluminium zirconium hardener and a small amount of Rare earth element er, and be incubated a period of time and be completely melt to intermediate alloy, after being sufficiently stirred for, heating furnace is heated up, add in aluminum titanium Between alloy be completely melt to aluminum titanium intermediate alloy, be cooled to 750 DEG C, skim, add pure magnesium, under conditions of vacuum be incubated 30～ 40min；(4) adding tri-kinds of metal fining modifiers of Al-5Ti-B, Al-lOSr and RE, the weight percent that three adds is frequently Example is 8:1:3；(5) add refining agent fully to react, degasification, slagging-off,；(6) melted pouring metal melt is to having been warmed up To the crucibles of about 300 DEG C, under conditions of 100MPa, stand 3h, form ingot casting；(7) described ingot casting cuts into suitable dimension After under conditions of 550 DEG C, carry out the homogenizing annealing of 12 hours, stove is cooled to room temperature；(8) after described ingot casting is warming up to 420 DEG C It is incubated 3 hours, carries out the hot rolling of five passages, after each passage hot rolling is complete, be incubated half an hour at 530 DEG C；(9) hot rolling is laggard Three passages of row cold rolling, aluminium alloy one end is relatively fixed and connects ultrasonic vibration apparatus, and the other end enters in milling train, exciting Frequency is 15kHz, and aluminium alloy supersonic vibration pressurized extends, cold rolling after alloy carried out at 240 DEG C the annealing of 2～3 hours Process, obtain certain thickness aluminum alloy plate materials；(10) aluminum alloy plate materials is carried out halfhour solution treatment at 540 DEG C, Then shrend；(11) aluminum alloy plate materials carries out the artificial aging of 5 hours at 180 DEG C；(12) by equal for mixed-powder C and V The even surface being applied in aluminum alloy plate materials, uses crossing current continuous wave Cq laser instrument that aluminum alloy plate materials carries out laser treatment modified, makes Obtain and while aluminum alloy sheet material surface forms nanoscale impression, mixed-powder C and V melted the surface being covered in aluminum alloy plate materials, Using argon to protect in processing procedure, its laser process parameter area is: laser power 2.1kw, sweep speed 18mm/s, Beam spot diameter, is 4mm.(13) configuration hydrochloric acid volume is the hydrochloric acid solution of 2:1 with deionized water volume ratio, with ethanol as solute The octadecyl trichlorosilane alkane solution of configuration 5mM, puts into process 2min in hydrochloric acid solution by the aluminium alloy obtained, use after having processed Sample, to remove unnecessary hydrochloric acid, is positioned over octadecyl trichlorosilane alkane solution by a large amount of deionized water rinsing aluminum alloy surface subsequently Middle immersion 12h, the sample of preparation is dried 30min at 80 DEG C；(14) punching press plastotype.
The tensile strength of protective housing sheet material, yield strength, percentage elongation and the Brinell hardness made be respectively 402.3MPa, 331.2MPa, 18%, 109HB.The ratio of each element weight percent of Reasonable adjustment so that formed in protective housing and keep The Mg of big ageing strengthening ability2Si phase, increases its elongation percentage while strengthening protective housing intensity.Add the Cu element of proper proportion, Reduce the natrual ageing adverse effect to material property, form Mg more tiny, more2Si phase (acicular beta " phase), keep away simultaneously Protective housing corrosion stability is reduced after exempting to add Cu element.Add trace Mn and Cr, disperse phase can be produced, suppress alloy recrystallization, Improve alloy strength, increase Alloy Anti intercrystalline corrosion ability, improve alloy property.Appropriate rare earth element adds in protective housing, Gas in fusion-casting process and objectionable impurities, increase mobility, crystal grain thinning, accelerated ag(e)ing process can be reduced or eliminated, and And appropriate rare earth element cooperates with other elements and can effectively improve mechanical property and the corrosive nature of alloy.
Under decompression state, melting protective housing can be effectively reduced smelting temperature, saves resource.In simultaneously in order to keep heater Pressure, heater needs to pour into a certain amount of noble gas while discharging gas, and first noble gas is passed directly into metal and melts In liquid, form bubble, drive the impurity in molten metal to move up, jointly discharge with gas, go the removal of impurity, additionally inertia Gas forces the harmful gas produced in fusion process to be discharged therewith, and the gas preventing oxygen etc. to have oxidizing property enters heater Middle oxidized metal liquation.
Three kinds of fining modifiers have positive role to protective housing, but have some limitations when being single use, as individually Add Sr and make Metamorphism treatment, the tendency aggravation of alloy air-breathing, drop low-alloyed compactness, be easily formed serious columanar structure, cause Mechanical property declines on the contrary, and rare earth easily aoxidizes, and modification effect is held time short etc.；And the anti-decay property of Al-5Ti-B fining agent The most unsatisfactory, and easily poisoned by Zr atom and lose the ability of crystal grain thinning, it is impossible to give full play to it respective excellent Point.And triplicity is used and can give full play to respective advantage while overcoming the defect itself having.From form, Relative to single use fining modifier, use three kinds of fining modifiers can strengthen the tensile strength of protective housing, surrender by force simultaneously Degree, percentage elongation and Brinell hardness, after wherein in table, data are interpolation fining modifier and without protective housing after fining modifier Comparison in various performance indications, uses the tensile strength of the protective housing of three kinds of fining modifiers to add 8.126% simultaneously, Yield strength adds 7.237%, percentage elongation add 22.0% and Brinell hardness add 11.594%.
Melted pouring metal melt, to having been warmed up standing under conditions of 100MPa 3h to the crucible of about 300 DEG C, can be prevented Metal liquid process of setting is only formed the ingot casting of open structure, thus affects the intensity of protective housing sheet material, simultaneously at high pressure Under the conditions of advantageously form the ingot casting of compact texture, strengthen the intensity of protective housing.
Protective housing supersonic vibration pressurized at the vibrating amplitude extends, and can reduce the frictional force being subject in the operation of rolling, thus reduce The frictional force impact on protective housing plate surface, cold rolling relative to static state, protective housing surface more light that supersonic vibration is cold rolling Sliding, be conducive to carrying out the operation of next step.
By mixed-powder C and V uniform application in the surface of protective housing sheet material, use crossing current continuous wave Cq laser instrument to containment vessel It is modified that body sheet material carries out laser treatment, can effectively make protective housing plate surface be formed mixed-powder while nanoscale impression C and V melts the surface being covered in protective housing sheet material, and protective housing plate surface forms nano level pit, increases containment vessel The surface area of body sheet material, makes the octadecyl trichlorosilane alkane solution of next step be easier to enter protection while improving frictional force Housing plate surface, forms the micro structure of different morphologies on protective housing surface, and self assembly possesses anticorrosion antiwear the most from the teeth outwards The silane film of performance, thus change the surface nature of protective housing sheet material, and the C-V overlay film that protective housing plate surface is formed can It is effectively improved protective housing sheet material antioxygenic property at high temperature, changes the surface nature of protective housing sheet material.
In order to measure protective housing Surface Creation film layer corrosion resisting property in saline solution, use Tafel curve and electrochemical impedance spectroscopy Evaluating the antiseptic property of thin film, before carrying out electro-chemical test, all samples all soaks a period of time in NaCl solution, electricity Chemical impedance spectrum and Plan Curve stably measure afterwards at open circuit point position (OCP), obtain the corrosion potential of protective housing sheet material (Ecorr) and corrosion electric current density (Icorr) numerical value, it is considered that the tendency of the highest sample etches of corrosion potential is the least, and rotten The corrosion rate of erosion electric current density the least expression sample is the least, and corrosion resisting property is the best.Measure the corrosion of the protective housing sheet material obtained Current potential (Ecorr) it is-627.1mV, the corrosion electric current density (I of protective housing sheet materialcorr) it is 1.298 μ Acm-2, and without place The protective housing of reason is-1057mV, the corrosion electric current density (I of undressed protective housingcorr) it is 4.303 μ Acm-2, by This understands, and the protective housing sheet material corrosion resistance of the present invention has promoted compared to untreated protective housing.
Embodiment four
The anticorrosive data logger of novel high-strength, including protective housing, described protective housing includes Mg0.3% by weight percentage, Si 2.5%, more than Cu4.5%, Mn0.25%, Fe0.2%, Zr0.2%, Er0.2%, Cr0.01%, Ni0.01%, Ti0.1%, Al Amount.
Novel high-strength anticorrosive data logger preparation method, described protective housing is the shell being made up of following steps:
(1) heating furnace used in pre-hot smelting at 340 DEG C and fine aluminium 1～2h；(2) fine aluminium after preheating melts under a reduced pressure Refine and add monocrystal silicon granule after the heating furnace that temperature is 750 DEG C is completely melt, add after monocrystal silicon particles fuse and close in the middle of aluminum bronze Gold, aluminum manganese intermediate alloy, aluminium chromium hardener, aluminum nickel intermediate alloy, ferro-aluminum intermediate alloy, aluminium zirconium hardener and a small amount of Rare earth element er, and be incubated a period of time and be completely melt to intermediate alloy, after being sufficiently stirred for, heating furnace is heated up, add in aluminum titanium Between alloy be completely melt to aluminum titanium intermediate alloy, be cooled to 750 DEG C, skim, add pure magnesium, under conditions of vacuum be incubated 30～ 40min；(4) adding tri-kinds of metal fining modifiers of Al-5Ti-B, Al-lOSr and RE, the weight percent that three adds is frequently Example is 8:1:3；(5) add refining agent fully to react, degasification, slagging-off,；(6) melted pouring metal melt is to having been warmed up To the crucibles of about 300 DEG C, under conditions of 100MPa, stand 3.5h, form ingot casting；(7) described ingot casting cuts into suitable chi Carrying out the homogenizing annealing of 12 hours after very little under conditions of 550 DEG C, stove is cooled to room temperature；(8) described ingot casting is warming up to 420 DEG C Rear insulation 3 hours, carries out the hot rolling of five passages, is incubated half an hour at 530 DEG C after each passage hot rolling is complete；(9) after hot rolling Carrying out the cold rolling of three passages, aluminium alloy one end is relatively fixed and connects ultrasonic vibration apparatus, and the other end enters in milling train, swashs Vibration frequency is 16kHz, and aluminium alloy supersonic vibration pressurized extends, cold rolling after alloy carried out at 240 DEG C 2～move back for 3 hours Fire processes, and obtains certain thickness aluminum alloy plate materials；(10) aluminum alloy plate materials is carried out halfhour solution treatment at 540 DEG C, Then shrend；(11) aluminum alloy plate materials carries out the artificial aging of 5 hours at 180 DEG C；(12) by equal for mixed-powder C and V The even surface being applied in aluminum alloy plate materials, uses crossing current continuous wave Cq laser instrument that aluminum alloy plate materials carries out laser treatment modified, makes Obtain and while aluminum alloy sheet material surface forms nanoscale impression, mixed-powder C and V melted the surface being covered in aluminum alloy plate materials, Using argon to protect in processing procedure, its laser process parameter area is: laser power 2.3kw, sweep speed 19mn/s, Beam spot diameter, is 4mm.(13) configuration hydrochloric acid volume is the hydrochloric acid solution of 2:1 with deionized water volume ratio, with ethanol as solute The octadecyl trichlorosilane alkane solution of configuration 5mM, puts into process 2min in hydrochloric acid solution by the aluminium alloy obtained, use after having processed Sample, to remove unnecessary hydrochloric acid, is positioned over octadecyl trichlorosilane alkane solution by a large amount of deionized water rinsing aluminum alloy surface subsequently Middle immersion 12h, the sample of preparation is dried 30min at 80 DEG C；(14) punching press plastotype.
The tensile strength of protective housing sheet material, yield strength, percentage elongation and the Brinell hardness made be respectively 412.3MPa, 311.6MPa, 21%, 110HB.The ratio of each element weight percent of Reasonable adjustment so that formed in protective housing and keep The Mg of big ageing strengthening ability2Si phase, increases its elongation percentage while strengthening protective housing intensity.Add the Cu element of proper proportion, Reduce the natrual ageing adverse effect to material property, form Mg more tiny, more2Si phase (acicular beta " phase), keep away simultaneously Protective housing corrosion stability is reduced after exempting to add Cu element.Add trace Mn and Cr, disperse phase can be produced, suppress alloy recrystallization, Improve alloy strength, increase Alloy Anti intercrystalline corrosion ability, improve alloy property.Appropriate rare earth element adds in protective housing, Gas in fusion-casting process and objectionable impurities, increase mobility, crystal grain thinning, accelerated ag(e)ing process can be reduced or eliminated, and And appropriate rare earth element cooperates with other elements and can effectively improve mechanical property and the corrosive nature of alloy.
Under decompression state, melting protective housing can be effectively reduced smelting temperature, saves resource.In simultaneously in order to keep heater Pressure, heater needs to pour into a certain amount of noble gas while discharging gas, and first noble gas is passed directly into metal and melts In liquid, form bubble, drive the impurity in molten metal to move up, jointly discharge with gas, go the removal of impurity, additionally inertia Gas forces the harmful gas produced in fusion process to be discharged therewith, and the gas preventing oxygen etc. to have oxidizing property enters heater Middle oxidized metal liquation.
Three kinds of fining modifiers have positive role to protective housing, but have some limitations when being single use, as individually Add Sr and make Metamorphism treatment, the tendency aggravation of alloy air-breathing, drop low-alloyed compactness, be easily formed serious columanar structure, cause Mechanical property declines on the contrary, and rare earth easily aoxidizes, and modification effect is held time short etc.；And the anti-decay property of Al-5Ti-B fining agent The most unsatisfactory, and easily poisoned by Zr atom and lose the ability of crystal grain thinning, it is impossible to give full play to it respective excellent Point.And triplicity is used and can give full play to respective advantage while overcoming the defect itself having.From form, Relative to single use fining modifier, use three kinds of fining modifiers can strengthen the tensile strength of protective housing, surrender by force simultaneously Degree, percentage elongation and Brinell hardness, after wherein in table, data are interpolation fining modifier and without protective housing after fining modifier Comparison in various performance indications, uses the tensile strength of the protective housing of three kinds of fining modifiers to add 6.092% simultaneously, Yield strength adds 5.124%, percentage elongation add 15.0% and Brinell hardness add 8.067%.
Melted pouring metal melt, can to having been warmed up standing under conditions of 100MPa 3.5h to the crucible of about 300 DEG C Prevent from metal liquid process of setting is formed the ingot casting of open structure, thus affect the intensity of protective housing sheet material, simultaneously at high pressure Under conditions of advantageously form the ingot casting of compact texture, strengthen the intensity of protective housing.
Protective housing supersonic vibration pressurized at the vibrating amplitude extends, and can reduce the frictional force being subject in the operation of rolling, thus reduce The frictional force impact on protective housing plate surface, cold rolling relative to static state, protective housing surface more light that supersonic vibration is cold rolling Sliding, be conducive to carrying out the operation of next step.
By mixed-powder C and V uniform application in the surface of protective housing sheet material, use crossing current continuous wave Cq laser instrument to containment vessel It is modified that body sheet material carries out laser treatment, can effectively make protective housing plate surface be formed mixed-powder while nanoscale impression C and V melts the surface being covered in protective housing sheet material, and protective housing plate surface forms nano level pit, increases containment vessel The surface area of body sheet material, makes the octadecyl trichlorosilane alkane solution of next step be easier to enter protection while improving frictional force Housing plate surface, forms the micro structure of different morphologies on protective housing surface, and self assembly possesses anticorrosion antiwear the most from the teeth outwards The silane film of performance, thus change the surface nature of protective housing sheet material, and the C-V overlay film that protective housing plate surface is formed can It is effectively improved protective housing sheet material antioxygenic property at high temperature, changes the surface nature of protective housing sheet material.
In order to measure protective housing Surface Creation film layer corrosion resisting property in saline solution, use Tafel curve and electrochemical impedance spectroscopy Evaluating the antiseptic property of thin film, before carrying out electro-chemical test, all samples all soaks a period of time in NaCl solution, electricity Chemical impedance spectrum and Plan Curve stably measure afterwards at open circuit point position (OCP), obtain the corrosion potential of protective housing sheet material (Ecorr) and corrosion electric current density (Icorr) numerical value, it is considered that the tendency of the highest sample etches of corrosion potential is the least, and rotten The corrosion rate of erosion electric current density the least expression sample is the least, and corrosion resisting property is the best.Measure the corrosion of the protective housing sheet material obtained Current potential (Ecorr) it is-603.2mV, the corrosion electric current density (I of protective housing sheet materialcorr) it is 1.389 μ Acm-2, and without place The protective housing of reason is-1057mV, the corrosion electric current density (I of undressed protective housingcorr) it is 4.303 μ Acm-2, by This understands, and the protective housing sheet material corrosion resistance of the present invention has promoted compared to untreated protective housing.
Embodiment five
The anticorrosive data logger of novel high-strength, including protective housing, described protective housing includes Mg0.5% by weight percentage, Si 2.0～3.5%, Cu5.0%, Mn0.25%, Fe0.3%, Zr0.4%, Er0.4%, Cr0.015%, Ni0.015%, Ti0.015%, Al surplus.
Novel high-strength anticorrosive data logger preparation method, described protective housing is the shell being made up of following steps:
(1) heating furnace used in pre-hot smelting at 350 DEG C and fine aluminium 1～2h；(2) fine aluminium after preheating is at decompression state Lower smelting temperature be the heating furnace of 750 DEG C is completely melt after add monocrystal silicon granule, add in aluminum bronze after monocrystal silicon particles fuse Between alloy, aluminum manganese intermediate alloy, aluminium chromium hardener, aluminum nickel intermediate alloy, ferro-aluminum intermediate alloy, aluminium zirconium hardener and A small amount of rare earth element er, and be incubated a period of time and be completely melt to intermediate alloy, after being sufficiently stirred for, heating furnace is heated up, add aluminum Titanium intermediate alloy is completely melt to aluminum titanium intermediate alloy, is cooled to 750 DEG C, skims, and adds pure magnesium, protects under conditions of vacuum Temperature 30～40min；(4) tri-kinds of metal fining modifiers of Al-5Ti-B, Al-lOSr and RE are added, the weight hundred that three adds Proportion by subtraction ratio is 8:1:3；(5) add refining agent fully to react, degasification, slagging-off,；(6) melted pouring metal melt is to Preheated to the crucible of about 300 DEG C stands under conditions of 100MPa 4h, form ingot casting；(7) described ingot casting cuts into conjunction Carrying out the homogenizing annealing of 12 hours after suitable size under conditions of 550 DEG C, stove is cooled to room temperature；(8) described ingot casting is warming up to It is incubated 3 hours after 420 DEG C, carries out the hot rolling of five passages, after each passage hot rolling is complete, be incubated half an hour at 530 DEG C；(9) heat Carrying out the cold rolling of three passages after rolling, aluminium alloy one end is relatively fixed and connects ultrasonic vibration apparatus, and the other end enters in milling train, Excited frequency is 18kHz, aluminium alloy supersonic vibration pressurized extends, cold rolling after alloy carried out at 240 DEG C 2～3 hours Annealing, obtains certain thickness aluminum alloy plate materials；(10) aluminum alloy plate materials is carried out at halfhour solid solution at 540 DEG C Reason, then shrend；(11) aluminum alloy plate materials carries out the artificial aging of 5 hours at 180 DEG C；(12) by mixed-powder C and V Uniform application, in the surface of aluminum alloy plate materials, uses crossing current continuous wave Cq laser instrument that aluminum alloy plate materials carries out laser treatment modified, While making aluminum alloy sheet material surface form nanoscale impression, mixed-powder C and V is melted the surface being covered in aluminum alloy plate materials, Using argon to protect in processing procedure, its laser process parameter area is: laser power 2.5kw, sweep speed 20mm/s, Beam spot diameter, is 4mm.(13) configuration hydrochloric acid volume is the hydrochloric acid solution of 2:1 with deionized water volume ratio, with ethanol as solute The octadecyl trichlorosilane alkane solution of configuration 5mM, puts into process 2min in hydrochloric acid solution by the aluminium alloy obtained, use after having processed Sample, to remove unnecessary hydrochloric acid, is positioned over octadecyl trichlorosilane alkane solution by a large amount of deionized water rinsing aluminum alloy surface subsequently Middle immersion 12h, the sample of preparation is dried 30min at 80 DEG C；(14) punching press plastotype.
The tensile strength of protective housing sheet material, yield strength, percentage elongation and the Brinell hardness made be respectively 395.5MPa, 329.1MPa, 21%, 111HB.The ratio of each element weight percent of Reasonable adjustment so that formed in protective housing and keep The Mg of big ageing strengthening ability2Si phase, increases its elongation percentage while strengthening protective housing intensity.Add the Cu element of proper proportion, Reduce the natrual ageing adverse effect to material property, form Mg more tiny, more2Si phase (acicular beta " phase), keep away simultaneously Protective housing corrosion stability is reduced after exempting to add Cu element.Add trace Mn and Cr, disperse phase can be produced, suppress alloy recrystallization, Improve alloy strength, increase Alloy Anti intercrystalline corrosion ability, improve alloy property.Appropriate rare earth element adds in protective housing, Gas in fusion-casting process and objectionable impurities, increase mobility, crystal grain thinning, accelerated ag(e)ing process can be reduced or eliminated, and And appropriate rare earth element cooperates with other elements and can effectively improve mechanical property and the corrosive nature of alloy.
Under decompression state, melting protective housing can be effectively reduced smelting temperature, saves resource.In simultaneously in order to keep heater Pressure, heater needs to pour into a certain amount of noble gas while discharging gas, and first noble gas is passed directly into metal and melts In liquid, form bubble, drive the impurity in molten metal to move up, jointly discharge with gas, go the removal of impurity, additionally inertia Gas forces the harmful gas produced in fusion process to be discharged therewith, and the gas preventing oxygen etc. to have oxidizing property enters heater Middle oxidized metal liquation.
Three kinds of fining modifiers have positive role to protective housing, but have some limitations when being single use, as individually Add Sr and make Metamorphism treatment, the tendency aggravation of alloy air-breathing, drop low-alloyed compactness, be easily formed serious columanar structure, cause Mechanical property declines on the contrary, and rare earth easily aoxidizes, and modification effect is held time short etc.；And the anti-decay property of Al-5Ti-B fining agent The most unsatisfactory, and easily poisoned by Zr atom and lose the ability of crystal grain thinning, it is impossible to give full play to it respective excellent Point.And triplicity is used and can give full play to respective advantage while overcoming the defect itself having.From form, Relative to single use fining modifier, use three kinds of fining modifiers can strengthen the tensile strength of protective housing, surrender by force simultaneously Degree, percentage elongation and Brinell hardness, after wherein in table, data are interpolation fining modifier and without protective housing after fining modifier Comparison in various performance indications, uses the tensile strength of the protective housing of three kinds of fining modifiers to increase by 8.126% simultaneously, bends Taking intensity and increase by 7.237%, percentage elongation increase by 22.0%% and Brinell hardness add 11.594%.
Melted pouring metal melt, to having been warmed up standing under conditions of 100MPa 4h to the crucible of about 300 DEG C, can be prevented Metal liquid process of setting is only formed the ingot casting of open structure, thus affects the intensity of protective housing sheet material, simultaneously at high pressure Under the conditions of advantageously form the ingot casting of compact texture, strengthen the intensity of protective housing.
Protective housing supersonic vibration pressurized at the vibrating amplitude extends, and can reduce the frictional force being subject in the operation of rolling, thus reduce The frictional force impact on protective housing plate surface, cold rolling relative to static state, protective housing surface more light that supersonic vibration is cold rolling Sliding, be conducive to carrying out the operation of next step.
By mixed-powder C and V uniform application in the surface of protective housing sheet material, use crossing current continuous wave Cq laser instrument to containment vessel It is modified that body sheet material carries out laser treatment, can effectively make protective housing plate surface be formed mixed-powder while nanoscale impression C and V melts the surface being covered in protective housing sheet material, and protective housing plate surface forms nano level pit, increases containment vessel The surface area of body sheet material, makes the octadecyl trichlorosilane alkane solution of next step be easier to enter protection while improving frictional force Housing plate surface, forms the micro structure of different morphologies on protective housing surface, and self assembly possesses anticorrosion antiwear the most from the teeth outwards The silane film of performance, thus change the surface nature of protective housing sheet material, and the C-V overlay film that protective housing plate surface is formed can It is effectively improved protective housing sheet material antioxygenic property at high temperature, changes the surface nature of protective housing sheet material.
In order to measure protective housing Surface Creation film layer corrosion resisting property in saline solution, use Tafel curve and electrochemical impedance spectroscopy Evaluating the antiseptic property of thin film, before carrying out electro-chemical test, all samples all soaks a period of time in NaCl solution, electricity Chemical impedance spectrum and Plan Curve stably measure afterwards at open circuit point position (OCP), obtain the corrosion potential of protective housing sheet material (Ecorr) and corrosion electric current density (Icorr) numerical value, it is considered that the tendency of the highest sample etches of corrosion potential is the least, and rotten The corrosion rate of erosion electric current density the least expression sample is the least, and corrosion resisting property is the best.Measure the corrosion of the protective housing sheet material obtained Current potential (Ecorr) it is-541.6mV, the corrosion electric current density (I of protective housing sheet materialcorr) it is 1.385 μ Acm-2, and without place The protective housing of reason is-1057mV, the corrosion electric current density (I of undressed protective housingcorr) it is 4.303 μ Acm-2, by This understands, and the protective housing sheet material corrosion resistance of the present invention has promoted compared to untreated protective housing.
Last it should be noted that, above example is only in order to illustrate technical scheme, rather than to scope Restriction, although having made to explain to the present invention with reference to preferred embodiment, it will be understood by those within the art that, Technical scheme can be modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention.

Claims (2)

1. the anticorrosive data logger of novel high-strength, it is characterised in that including protective housing, described protective housing is by weight percentage Including Mg0.2%, Si 2.0%, Cu4.0%, Mn0.2%, Fe0.2%, Zr0.1%, Er0.1%, Cr0.01%, Ni0.01%, Ti0.1%, Al surplus.
The anticorrosive data logger of novel high-strength the most according to claim 1, it is characterised in that described protective housing be by with The shell that lower step is made:
(1) heating furnace used in pre-hot smelting at 300 DEG C and fine aluminium 1～2h；(2) fine aluminium after preheating melts under a reduced pressure Refine and add monocrystal silicon granule after the heating furnace that temperature is 750 DEG C is completely melt, add after monocrystal silicon particles fuse and close in the middle of aluminum bronze Gold, aluminum manganese intermediate alloy, aluminium chromium hardener, aluminum nickel intermediate alloy, ferro-aluminum intermediate alloy, aluminium zirconium hardener and a small amount of Rare earth element er, and be incubated a period of time and be completely melt to intermediate alloy, after being sufficiently stirred for, heating furnace is heated up, add in aluminum titanium Between alloy be completely melt to aluminum titanium intermediate alloy, be cooled to 750 DEG C, skim, add pure magnesium, under conditions of vacuum be incubated 30～ 40min；(4) adding tri-kinds of metal fining modifiers of Al-5Ti-B, Al-lOSr and RE, the weight percent that three adds is frequently Example is 8:1:3；(5) add refining agent fully to react, degasification, slagging-off,；(6) melted pouring metal melt is to having been warmed up To the crucibles of about 300 DEG C, under conditions of 100MPa, stand 2h, form ingot casting；(7) described ingot casting cuts into suitable dimension After under conditions of 550 DEG C, carry out the homogenizing annealing of 12 hours, stove is cooled to room temperature；(8) after described ingot casting is warming up to 420 DEG C It is incubated 3 hours, carries out the hot rolling of five passages, after each passage hot rolling is complete, be incubated half an hour at 530 DEG C；(9) hot rolling is laggard Three passages of row cold rolling, aluminium alloy one end is relatively fixed and connects ultrasonic vibration apparatus, and the other end enters in milling train, exciting Frequency is 12kHz, and aluminium alloy supersonic vibration pressurized extends, cold rolling after alloy carried out at 240 DEG C 2 hours annealing treatment Reason, obtains certain thickness aluminum alloy plate materials；(10) aluminum alloy plate materials is carried out halfhour solution treatment at 540 DEG C, so Rear shrend；(11) aluminum alloy plate materials carries out the artificial aging of 5 hours at 180 DEG C；(12) by uniform for mixed-powder C and V It is applied in the surface of aluminum alloy plate materials, uses crossing current continuous wave Cq laser instrument that aluminum alloy plate materials carries out laser treatment modified so that While aluminum alloy sheet material surface formation nanoscale impression, mixed-powder C and V is melted the surface being covered in aluminum alloy plate materials, place Using argon to protect during reason, its laser process parameter area is: laser power 1.7kw, sweep speed 13mn/s, Beam spot diameter, is 4mm.(13) configuration hydrochloric acid volume is the hydrochloric acid solution of 2:1 with deionized water volume ratio, with ethanol as solute The octadecyl trichlorosilane alkane solution of configuration 5mM, puts into process 2min in hydrochloric acid solution by the aluminium alloy obtained, use after having processed Sample, to remove unnecessary hydrochloric acid, is positioned over octadecyl trichlorosilane alkane solution by a large amount of deionized water rinsing aluminum alloy surface subsequently Middle immersion 12h, the sample of preparation is dried 30min at 80 DEG C；(14) punching press plastotype.
CN201610220084.9A 2016-04-08 2016-04-08 Novel high-strength corrosion-resistant data recorder Pending CN105734370A (en)

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Publication number Priority date Publication date Assignee Title
CN101765674A (en) * 2007-07-27 2010-06-30 爱尔康何纳吕公司 Extruded products in aluminium alloy al-mn with improved mechanical strength
CN102560312A (en) * 2010-12-16 2012-07-11 贵州华科铝材料工程技术研究有限公司 Seven-combination modified low-zinc aluminum alloy plating material for hot-dip plating and preparation method thereof
CN103273026A (en) * 2013-06-07 2013-09-04 中南大学 Multiple-energy-field asymmetric sunken type cast-rolling method for preparing aluminium alloy plates and strips for deep drawing
CN103993208A (en) * 2014-05-29 2014-08-20 合肥工业大学 Al-Mg-Si-Cu-Mn-Er alloy material and preparation method thereof
CN104928676A (en) * 2015-07-12 2015-09-23 北京工业大学 Preparation method for coating material for strengthening and repairing airplane landing gear

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101765674A (en) * 2007-07-27 2010-06-30 爱尔康何纳吕公司 Extruded products in aluminium alloy al-mn with improved mechanical strength
CN102560312A (en) * 2010-12-16 2012-07-11 贵州华科铝材料工程技术研究有限公司 Seven-combination modified low-zinc aluminum alloy plating material for hot-dip plating and preparation method thereof
CN103273026A (en) * 2013-06-07 2013-09-04 中南大学 Multiple-energy-field asymmetric sunken type cast-rolling method for preparing aluminium alloy plates and strips for deep drawing
CN103993208A (en) * 2014-05-29 2014-08-20 合肥工业大学 Al-Mg-Si-Cu-Mn-Er alloy material and preparation method thereof
CN104928676A (en) * 2015-07-12 2015-09-23 北京工业大学 Preparation method for coating material for strengthening and repairing airplane landing gear

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