CN107201467B - A kind of heat treatment type Antibacterial aluminum alloy and its heat treatment method - Google Patents
A kind of heat treatment type Antibacterial aluminum alloy and its heat treatment method Download PDFInfo
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- CN107201467B CN107201467B CN201710372305.9A CN201710372305A CN107201467B CN 107201467 B CN107201467 B CN 107201467B CN 201710372305 A CN201710372305 A CN 201710372305A CN 107201467 B CN107201467 B CN 107201467B
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 72
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 47
- 238000010438 heat treatment Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007797 corrosion Effects 0.000 claims abstract description 15
- 238000005260 corrosion Methods 0.000 claims abstract description 15
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 230000001550 time effect Effects 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000000845 anti-microbial effect Effects 0.000 claims description 7
- 230000001954 sterilising effect Effects 0.000 claims description 7
- 238000010792 warming Methods 0.000 claims description 4
- 230000002421 anti-septic effect Effects 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 9
- 230000006870 function Effects 0.000 abstract description 8
- 241000894006 Bacteria Species 0.000 abstract description 6
- 208000015181 infectious disease Diseases 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000003115 biocidal effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003242 anti bacterial agent Substances 0.000 abstract description 2
- 229940088710 antibiotic agent Drugs 0.000 abstract description 2
- 230000001717 pathogenic effect Effects 0.000 abstract 1
- 239000010949 copper Substances 0.000 description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 17
- 229910052802 copper Inorganic materials 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 8
- 229910000553 6063 aluminium alloy Inorganic materials 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910018563 CuAl2 Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- YIWGJFPJRAEKMK-UHFFFAOYSA-N 1-(2H-benzotriazol-5-yl)-3-methyl-8-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carbonyl]-1,3,8-triazaspiro[4.5]decane-2,4-dione Chemical compound CN1C(=O)N(c2ccc3n[nH]nc3c2)C2(CCN(CC2)C(=O)c2cnc(NCc3cccc(OC(F)(F)F)c3)nc2)C1=O YIWGJFPJRAEKMK-UHFFFAOYSA-N 0.000 description 1
- 229910018182 Al—Cu Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910018565 CuAl Inorganic materials 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 229910019752 Mg2Si Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 230000007786 learning performance Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of heat treatment type Antibacterial aluminum alloy and its heat treatment methods, belong to anti-biotic material and technical field of aluminum alloy technology.It is calculated in weight percent, the chemical component of the aluminium alloy are as follows: Mg:0.8-1.5%；Si:0.2-0.5%；Cu:0.8-1.6%；Surplus is Al, and impurity content should meet the corresponding requirements in aluminium alloy national standard in alloy.Antibacterial aluminum alloy new material of the invention has unique antibacterial functions, while the advantages of handle by reasonable two-stage time effect, can keep aluminium alloy good corrosion resistance.The Antibacterial aluminum alloy can significantly reduce the pathogenic risk of the bacterium infection caused in existing Al-alloy products use, can be widely applied to architectural shape, irrigate tubing and the extrded material for vehicle, rack, furniture, railing etc..
Description
Technical field
The present invention relates to anti-biotic material and technical field of aluminum alloy technology, specially a kind of heat treatment type Antibacterial aluminum alloy and its heat
Processing method, the aluminium alloy can be widely applied to architectural shape, irrigate tubing and for vehicle, rack, furniture, railing etc.
Extrded material.
Background technique
Aluminium alloy due to its light weight, it is corrosion-resistant, formability is good the advantages that, be widely applied to food, chemistry, ship
The multiple fields such as industry, building decoration and occasion.With increasingly harsh, the event day that bacterium infection causes of people's living environment
Benefit increases, and has been subjected to the very big concern of society.However traditional aluminium alloy itself does not have sterilization, antibacterial functions.Therefore it opens
The aluminium alloy that itself there are antibacterial functions is issued, the growing demand in market will have greatly been catered to.
Application number be respectively 201110174210.9,2011110171161.3 patent of invention disclose it is a kind of for heat
The bactericidal effect of Ag and Zn ion is mainly utilized in the Antibacterial aluminum alloy of exchanger cooling flat tube and radiator fin.In addition,
Application No. is 201310038297.6 and 201310126085.3 patents of invention to disclose a kind of food containers antibacterial respectively
The composite bactericidal effect of Ag, Zn and Re element is mainly utilized in aluminium alloy and a kind of Antibacterial aluminum alloy for architectural ornament.These are specially
The sharp strong bactericidal effect for mainly utilizing Ag, but there are two main problems, first is that the content of Ag all designs relatively high, highest
Reach 3%.And the strong volatility of Ag element itself causes it to be difficult to control recovery rate in actual production process.Second is that Ag element
Fancy price, so that containing Ag's there is no a kind of commercial grades in the metal material of existing all industrialized productions
Metal alloy, this seriously constrains its practical feasibility.Therefore, by designing the aluminium alloy with Ag for main antiseptic elements, nothing
By from material design angle or practical application, great practical challenge is faced.
It is well known that copper equally has very strong sterilizing function, and copper also has important reality in aluminium alloy
Border application, 2 line aluminium alloys are exactly a kind of aluminium alloy based on aluminum bronze, in such aluminium alloy, due to solubility of the copper in aluminium
Larger, the copper being solid-solubilized in aluminum substrate can be by Precipitation CuAl2Play apparent ageing strengthening effect.But due to closing
Al-Cu intermetallic compound in gold is soluble in anodic oxidation, and therefore, it is difficult to generate fine and close anode oxide film, corrosion resistant
Corrosion is poor, therefore the aluminium alloy of this series is very difficult to apply in the occasion more demanding to corrosion resistance.
In order to enable 2 line aluminium alloys have enough intensity, copper content is generally higher, is not less than 1.8%.Therefore its is resistance to
Corrosion can be poor.In order to make full use of practical application of the copper in 6 line aluminium alloys, in the premise for not significantly reducing its corrosion resisting property
Under, fully ensure that its antibacterial action, from material design angle, eliminating or reduce correlation 6 is that Alcoa product causes
Bacterium infection problem have important social and economic implications.
Summary of the invention
For shortcoming present in present technology, the present invention is common 6063 aluminium alloy of existing aluminium alloy for 6,
A kind of heat treatment type Antibacterial aluminum alloy and its heat treatment method are proposed, which passes through suitable component proportion and heat treatment
Technique not only has excellent antibacterial bacteriostatic ability, maintains with the comparison comparable corrosion resisting property of 6063 aluminium alloys, can be with
Meet original 6063 aluminium alloy in the requirement of related fields product.
To achieve the above object, the technical scheme is that
A kind of heat treatment type Antibacterial aluminum alloy, calculated in weight percent, the chemical component of the Antibacterial aluminum alloy are as follows: Mg:
0.8-1.5%；Si:0.2-0.5%；Cu:0.8-1.6%；Surplus is Al and inevitable impurity；Impurity element contains in alloy
Amount should meet the corresponding requirements in aluminium alloy national standard.
Ingredient is carried out according to the alloying component, melting is simultaneously cast into aluminium alloy cast ingot, then carries out to aluminium alloy cast ingot
Heat treatment.The heat treatment method of the Antibacterial aluminum alloy, includes the following steps:
(1) solution treatment: solid solution temperature is 550-580 DEG C, and the solution treatment time is 2-4 hours, water cooling to room temperature；
(2) two-stage time effect is handled: firstly, keeping the temperature 20-30 hours under the conditions of 140-160 DEG C；Then it is directly warming up to
180-200 DEG C, 20-40 minutes are kept the temperature, water cooling to room temperature.
In the ingredient design of Antibacterial aluminum alloy of the invention, copper (Cu) is most important alloy element in alloy, is answered
Guarantee under heat treatment condition, copper-rich phase CuAl2Even dispersion in alloy matrix aluminum is precipitated.When copper content is lower, i.e.,
Make through Overheating Treatment, in alloy matrix aluminum is also not easy that enough copper-rich phases are precipitated, because without having stable anti-microbial property.Work as copper
When content is relatively excessively high, it will lead to aluminium alloy and excessive CuAl be precipitated2, the serious compactness for destroying passivating film, reduction aluminium conjunction
The corrosion resistance of gold, therefore the copper content control in the Antibacterial aluminum alloy in the present invention is 0.8-1.6wt%.
The present invention contains common the alloying element Mg and Si of 6 line aluminium alloys, mainly for guaranteeing that the aluminium alloy has foot
Enough intensity and hardness, and there is good processing performance.Compared with 6063 aluminium alloys, Mg content has suitably been turned up in the present invention
With reduce Si content so that less dispersion strengthening phase Mg is precipitated in Antibacterial aluminum alloy2Si, loss of strength pass through Cu2Al copper-rich
The precipitation strength of phase is supplemented.The Mg addition of high level can make up corrosive nature caused by copper addition to a certain degree simultaneously
Decline.Therefore contain 0.8-1.5%Mg and 0.2-0.5%Si in the present invention.
A kind of heat treatment type Antibacterial aluminum alloy of the present invention and its heat treatment method, include the following steps:
(1) solution treatment: 550-580 DEG C solution treatment 2-4 hours, water cooling to room temperature, the step principal security antiseptic aluminum
Alloying component and even tissue.
(2) two-stage time effect is handled: 140-160 DEG C after heat preservation 20-30 hours, is directly warming up to 180-200 DEG C of heat preservation 20-40
Minute, water cooling to room temperature.The step is handled using two-stage time effect, primarily to guaranteeing that Antibacterial aluminum alloy has excellent mechanics
Performance and anti-microbial property.Low temperature ageing process can guarantee to form enough areas GP (copper-rich atom segregation area), in order in high temperature
Ag(e)ing process formation be evenly distributed, the suitable Cu of size2Al and Mg2Si.The presence of this precipitated phase being evenly distributed, can not only
Ensure that aluminium alloy has enough mechanical properties, and the heat treating regime of this optimization also ensures that aluminium alloy with resistance to enough
Under the premise of corrosion energy, its anti-microbial property is given full play to.
Therefore, a kind of heat treatment type Antibacterial aluminum alloy of the invention and its heat treatment method are guaranteeing it with excellent power
Under the premise of learning performance and corrosion resisting property, using the sterilizing function of copper, the new function that its aluminium alloy ontology has antibacterial is realized,
The bacterium infection risk caused in existing 6063 aluminium alloy product use can be significantly reduced.
The beneficial effects of the present invention are:
1, the present invention optimizes the content of Mg and Si by experimental study in existing 6063 aluminium alloy, while adding 0.8-
1.5% copper obtains the Antibacterial aluminum alloy new material with antibacterial functions by the antibacterial heat-treatment of optimization.
2, the Antibacterial aluminum alloy in the present invention can be widely applied to architectural shape, irrigate tubing and for vehicle, rack, family
The extrded material of tool, railing etc..
Specific embodiment
The present invention is described in detail with reference to embodiments.
The present invention is heat treatment type Antibacterial aluminum alloy, preparation process are as follows: according to the present invention set by Antibacterial aluminum alloy
Chemical composition ranges using crucible electrical resistance furnace melting and pour into ingot, smelt embodiment 1-6 and comparative example 1-9 aluminium alloy,
Its chemical component is shown in Table 1.The heat treatment process of the sample of embodiment and comparative example is all made of such as under type:
Firstly, 560 DEG C are dissolved 2 hours, water cooling；Then, 24 hours are kept the temperature for 150 DEG C, is directly warming up to 190 DEG C and keeps the temperature 30 points
Clock, water cooling to room temperature.
The aluminum alloy chemical composition (wt, %) of 1 embodiment and comparative example of table
1, mechanical property
It provides according to GB/T228.1-2010 " metal material stretching test part 1: room temperature test method " to embodiment
Tensile tests at room is carried out with comparative example aluminium alloy.
2, anti-microbial property detects
According to " JIS Z 2801-2000 " antibacterial fabricated product-antibiotic property test method and antibacterial effect ", GB/T
The correlation standards such as 2591-2003 " antibiotic plastic anti-microbial property experimental method and antibacterial effect " ", quantitative test table 1 institute
Aluminium alloy, the antibacterial acieral being shown as point frequent infectious bacteria Escherichia coli are acted on after sterilizing rate.Anti-microbial property detection knot
Fruit is shown in Table 2, wherein the calculation formula of sterilizing rate are as follows: sterilizing rate (%)=[(control aluminum alloy sample viable count-Antibacterial aluminum alloy
Viable count)/control aluminum alloy sample viable count] × 100, control aluminum alloy sample viable count is that bacterium is carried out in comparative example
Viable count after culture, Antibacterial aluminum alloy viable count refer to the viable count carried out after Bacteria Culture in Antibacterial aluminum alloy.
3, corrosion resistance
According to aluminium alloy pitting potential measurement method (national standard: GB/T 17899-1999) to aluminium of the embodiment of the present invention
Alloy and comparative example aluminium alloy carry out anodic polarization curves test, and test result is shown in Table 2.
2 embodiment Antibacterial aluminum alloy of table, the performance test results of comparative example aluminium alloy
To sum up, worked as in this patent ingredient protection scope by above embodiments and comparative example experimental result it is found that only having,
It can just prepare while have both the Antibacterial aluminum alloy of excellent mechanical property, antibacterial functions and corrosion resisting property.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence should all cover in protection scope of the present invention.
Claims (3)
1. a kind of heat treatment type Antibacterial aluminum alloy, it is characterised in that: by weight percentage, the chemical component of the Antibacterial aluminum alloy
Are as follows: Mg:0.8-1.5%；Si:0.2-0.35%；Cu:0.8-1.6%；Surplus is Al and inevitable impurity；The antiseptic aluminum
The heat treatment method of alloy includes the following steps:
(1) solution treatment: solution treatment 2-4 hours under the conditions of 550-580 DEG C, water cooling to room temperature；
(2) two-stage time effect is handled: after keeping the temperature 20-30 hours under the conditions of 140-160 DEG C, being directly warming up to 180-200 DEG C, heat preservation
20-40 minutes, water cooling to room temperature.
2. heat treatment type Antibacterial aluminum alloy described in accordance with the claim 1, it is characterised in that: impurity content in the aluminium alloy
The corresponding requirements in aluminium alloy national standard should be met.
3. heat treatment type Antibacterial aluminum alloy described in accordance with the claim 1, it is characterised in that: the aluminium alloy capability is as follows:
Mechanical property: yield strength Rp0.2 >=218MPa, tensile strength Rm >=266MPa, elongation percentage >=12%；
Anti-microbial property: sterilizing rate >=97.5%；
Corrosion resisting property: corrosion electric current density≤15 μ Am-2。
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| CN109044745A (en) * | 2018-06-28 | 2018-12-21 | 中国人民解放军总医院第附属医院 | A kind of ultralight crutch of burn amputee |
| CN109735781A (en) * | 2019-03-15 | 2019-05-10 | 合肥工业大学 | A kind of heat treatment process of 6063 aluminium alloy |
| CN112877623A (en) * | 2019-11-29 | 2021-06-01 | 中国科学院金属研究所 | Aluminum alloy and aluminum matrix composite for preparing aluminum matrix composite with low natural aging hardness and high artificial aging strength |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63103046A (en) * | 1986-10-20 | 1988-05-07 | Furukawa Alum Co Ltd | Aluminum alloy for cold forging |
| CN103103406A (en) * | 2013-01-31 | 2013-05-15 | 山东建筑大学 | Antibacterial aluminum alloy for food container |
| CN103194651A (en) * | 2013-01-31 | 2013-07-10 | 山东建筑大学 | Antibacterial aluminum alloy for architectural ornament |
| CN106119611A (en) * | 2016-04-27 | 2016-11-16 | 浙江华仁科技有限公司 | A kind of composite antibacterial aluminium alloy and manufacture method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6613167B2 (en) * | 2001-06-01 | 2003-09-02 | Alcoa Inc. | Process to improve 6XXX alloys by reducing altered density sites |
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- 2017-05-24 CN CN201710372305.9A patent/CN107201467B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63103046A (en) * | 1986-10-20 | 1988-05-07 | Furukawa Alum Co Ltd | Aluminum alloy for cold forging |
| CN103103406A (en) * | 2013-01-31 | 2013-05-15 | 山东建筑大学 | Antibacterial aluminum alloy for food container |
| CN103194651A (en) * | 2013-01-31 | 2013-07-10 | 山东建筑大学 | Antibacterial aluminum alloy for architectural ornament |
| CN106119611A (en) * | 2016-04-27 | 2016-11-16 | 浙江华仁科技有限公司 | A kind of composite antibacterial aluminium alloy and manufacture method |
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