CN108004485A - Antibacterial duplex stainless steel of the composite nanoparticle containing silver-colored zinc and preparation method thereof - Google Patents
Antibacterial duplex stainless steel of the composite nanoparticle containing silver-colored zinc and preparation method thereof Download PDFInfo
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- CN108004485A CN108004485A CN201711069018.7A CN201711069018A CN108004485A CN 108004485 A CN108004485 A CN 108004485A CN 201711069018 A CN201711069018 A CN 201711069018A CN 108004485 A CN108004485 A CN 108004485A
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- stainless steel
- antibacterial
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/007—Ferrous alloys, e.g. steel alloys containing silver
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- Metallurgy (AREA)
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- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Antibacterial duplex stainless steel the invention discloses a kind of composite nanoparticle containing silver-colored zinc and preparation method thereof.The antibacterial duplex stainless steel of the present invention is based on traditional two phase stainless steel, by adding silver zinc complex nano-particle, what smelting processing formed.The chemical composition of the antibacterial duplex stainless steel of the present invention includes as mass fraction：C≤0.03%, Si≤0.5%, S≤0.005%, P≤0.005%, N≤0.02%, W：≤ 6%, Mn：0.1 2%, Cr：10 15%, Ni：1.0 4.0%, Mo：0.5 2.0%, Ag Zn composite nanoparticles：0.5 3.5%, surplus is Fe and inevitable impurity, and wherein Ag nano-particles account for the 5 80% of Ag Zn composite nanoparticle gross masses.The antibacterial duplex stainless steel has excellent antibacterial effect, its anti-Staphylococcus aureus and Escherichia coli rate are up to more than 99.9%, at the same time, the antibacterial duplex stainless steel also has very excellent intensity and toughness, the two-phase stainless steel large-sized seperator disk especially suitable for media such as a kind of corn oil, water, sediments.
Description
Technical field
The present invention relates to a kind of metal material functional modification technology, more particularly to a kind of composite nanoparticle containing silver-colored zinc
Antibacterial duplex stainless steel and preparation method thereof, antibacterial effect is very notable, and has very excellent intensity and toughness, especially
Suitable for a kind of two-phase stainless steel large-sized seperator disk of the media such as corn oil, water, sediment.
Background technology
Country's starch separator is nozzle continuous discharge type disk centrifuge at present, the starch being mainly used in starch industry
Refined, pre-concentration, Protein Separation and recovery of starch etc., can be used for food, medicine, dyeization, the liquid solid two of the department such as environmental protection
Phase separation, the technical process, such as kaolin such as concentration and recovery and clarification, the recycling of paper pulp, wastewater treatment etc..China manufactures dish-style
The time of starch separator is shorter, its major technique, which has from same kind of products at abroad, to be digested and assimilated.The dish of China's manufacture at present
The drum assembly of formula starch separator is made of multiple parts, and internal structure is complicated, not only assembles cumbersome, but also feed system
Easily block, equipment runs ten days just necessary cleaning during shutdown rotary drums, can not realize three phase separation, greatly reduce equipment work
Efficiency.Western developed country is more early in separation of solid and liquid area research, and current technology also more comprehensively, completely, has substantial amounts of
The example of business application, but the product price of these companies is prohibitively expensive, trouble, expense are also relatively high again for maintenance of equipment.
The maximizing of dish-style starch separator, intelligence, the application of multifunction, high-speed high accuracy and property material are not
The development trend come, and the latest development direction of domestic starch separator, the necessarily renewal of dish-style starch separator product are changed
Generation.An importance of the material as research dish-style starch separator update new product, is closed be subject to many researchers
Note, wherein, the most importantly research to stainless steel.
As an important branch in stainless steel, two phase stainless steel is acknowledged as the mainstream stainless steel product of 21 century
Kind, it is contemplated that a kind of large scale equipment of the media such as separating corn oil, water, sediment is used it for, fungi-proofing, anti-microbial property seems outstanding
To be important.As can assigning two phase stainless steel excellent antibacterial functions, its use intensity is not lost, this is for promoting stainless steel
The development of material and the development for promoting domestic starch separator to be nozzle continuous discharge type disk centrifuge product have important society
Meeting and economic value.
The content of the invention
The purpose of the invention is to provide antibacterial duplex stainless steel and its preparation of a kind of composite nanoparticle containing silver-colored zinc
Method, based on traditional two phase stainless steel, by adding silver-zinc composite nanoparticle, through the manufacture of specific smelting processing process
Into antibacterial effect is very notable, and has very excellent intensity and toughness, especially suitable for a kind of corn oil, water, sediment
Deng the two-phase stainless steel large-sized seperator disk of medium.
The technical scheme is that：
Antibacterial duplex stainless steel of a kind of composite nanoparticle containing silver-colored zinc and preparation method thereof, the antibacterial two-phase stainless
Steel is to be based on traditional two phase stainless steel, by adding silver-zinc composite nanoparticle, what smelting processing formed, its chemical composition is pressed
Mass fraction meter includes：C≤0.03%, Si≤0.5%, S≤0.005%, P≤0.005%, N≤0.02%, W：≤ 6%,
Mn：0.1-2%, Cr：10-15%, Ni：1.0-4.0%, Mo：0.5-2.0%, Ag-Zn composite nanoparticle：0.5-3.5%,
Surplus is Fe and inevitable impurity, and wherein Ag nano-particles account for the 5-80% of Ag-Zn composite nanoparticle gross masses.
C is that have make austenite phase stabilization, improve the effect of intensity, and makes Carbide Precipitation in the heating of heat treatment
And the element of the effect of micro organization is obtained, plasticity and toughness can be improved.
S, P controls its content, can effectively prevent corrosion resistance and toughness from reducing.
Si forms dense oxidation film, can improve the stability of two phase stainless steel.
N improves intercrystalline corrosion.
Mn improves corrosion resistance of the two phase stainless steel in organic acid.
W improves resistance to spot corrosion and crevice corrosion.
Mo forms dense oxidation film, can prevent Cl-Spot corrosion
Cr can improve solid solution electrode current potential, form the oxide-film of densification, but excessive Cr can cause intercrystalline corrosion
Become larger.Therefore its content is controlled.
Ni increases intensity and plasticity and toughness, prevents transcrystalline type stress corrosion.
Preferably, the preparation method includes：Pre-process-feeding intake-smelt-steel ingot casting-hot rolling-solid solution at
Reason-cooling-antibacterial duplex stainless steel.
Preferably, the preprocessing process includes the technique such as degreasing, industrial cleaners cleaning, washing, dry, subtracts as far as possible
Few unnecessary magazine.
Preferably, must first being melted two kinds of elements of Ag and Zn by quality accounting before the charging technology is carried out
Refining, obtains required Ag-Zn alloys, and obtained Ag-Zn alloys and other metal charges are then put into vacuum induction electricity successively again
Smelted in stove.
Preferably, after the smelting process, slurry is poured into steel ingot, control temperature at 1000-1300 DEG C into
Row hot rolling treatment, control temperature carry out solution strengthening processing at 960-1150 DEG C, and strengthened solution time is controlled in 60-300
Second, room temperature is then cooled to again, both obtains the antibacterial duplex stainless steel.
Preferably, which has excellent antibacterial effect, its anti-Staphylococcus aureus and large intestine bar
Bacterium rate is up to more than 99.9%, meanwhile, which also has very excellent intensity and toughness, particularly suitable
In a kind of two-phase stainless steel large-sized seperator disk of the media such as corn oil, water, sediment.
Embodiment
In order to which the present invention is better described, attached embodiment is as follows.It is emphasized that embodiment is not meant to the present invention
Scope be limited in the condition of embodiment narration, the purpose of embodiment is the content that the present invention is further explained and its feasible
Property.
Antibacterial duplex stainless steel of a kind of composite nanoparticle containing silver-colored zinc and preparation method thereof, the antibacterial two-phase stainless
Steel is that, by adding silver-zinc composite nanoparticle, smelting processing forms based on traditional two phase stainless steel.
In embodiments, the chemical composition of antibacterial duplex stainless steel of the present invention is as mass fraction such as the institute of table 1
Show.
The chemical composition (by weight percentage) of 1 antibacterial duplex stainless steel of the present invention of table
Note：Surplus is Fe and inevitable impurity；(Ag%) refer to that Ag nano-particles account for Ag-Zn composite nanoparticles
Mass fraction.
In embodiments, the manufacturing process of antibacterial duplex stainless steel of the present invention is as shown in table 2.
The manufacturing process of 2 antibacterial duplex stainless steel of the present invention of table
Using typical method with plastic film, with reference to Japanese antibacterial association JISZ280 examination criterias, each embodiment sample is detected to gold
Staphylococcus aureus and the antibacterial effect of Escherichia coli, each embodiment sample is tested with reference to standard GB/T/T 228-2010
Tensile property, the anti-bending strength of reference standard GB/T/each embodiment sample of T 232-1999 tests, reference standard GB/T/
T 229-1994 test the shock resistance of each embodiment sample, and properties test result is as shown in table 3.
The properties test result of 3 antibacterial duplex stainless steel of the present invention of table
| Embodiment | 1 | 2 | 3 | 4 | 5 |
| Anti-Staphylococcus aureus (%) | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 |
| Anti- Escherichia coli (%) | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 |
| Tensile strength (MPa) | 850 | 885 | 872 | 910 | 835 |
| Yield strength (MPa) | 725 | 750 | 765 | 780 | 770 |
| Elasticity modulus (MPa) | 5500 | 5350 | 5220 | 5650 | 5400 |
| Elongation at break (%) | 14.5 | 20.0 | 16.0 | 18.5 | 15.5 |
| Bending strength (MPa) | 1160 | 1275 | 1285 | 1250 | 1195 |
| Impact strength (J/cm2) | 50 | 52 | 60 | 55 | 73 |
Can be seen that antibacterial duplex stainless steel provided by the present invention from the performance test results of various embodiments above has
Excellent antibacterial effect, its anti-Staphylococcus aureus and Escherichia coli rate up to more than 99.9%, meanwhile, the antibacterial is double
Phase stainless steel also has very excellent intensity and toughness, the two-phase especially suitable for media such as a kind of corn oil, water, sediments
Stainless steel large-sized seperator disk.
Claims (6)
- A kind of 1. antibacterial duplex stainless steel of composite nanoparticle containing silver-colored zinc, it is characterised in that the antibacterial duplex stainless steel It is to be based on traditional two phase stainless steel, by adding silver-zinc composite nanoparticle, what smelting processing formed, its chemical composition presses matter Amount fraction meter includes：C≤0.03%, Si≤0.5%, S≤0.005%, P≤0.005%, N≤0.02%, W：≤ 6%, Mn： 0.1-2%, Cr：10-15%, Ni：1.0-4.0%, Mo：0.5-2.0%, Ag-Zn composite nanoparticle：0.5-3.5%, surplus For Fe and inevitable impurity, wherein Ag nano-particles account for the 5-80% of Ag-Zn composite nanoparticle gross masses.
- 2. the manufacture method of rotary drum disk two phase stainless steel according to claim 1, it is characterised in that the preparation Method includes：Pre-process-feeding intake-and smelt-steel ingot casting-hot rolling-solution treatment-cooling, obtain antibacterial duplex stainless steel.
- 3. rotary drum disk two phase stainless steel manufacture method according to claim 2, it is characterised in that the pretreatment Process includes degreasing, industrial cleaners cleaning, washing, drying process, reduces unnecessary impurity.
- 4. the manufacture method of rotary drum disk two phase stainless steel according to claim 2, it is characterised in that described in progress Charging technology before, Ag and Zn two kinds of elements first must be subjected to melting by quality accounting, obtain required Ag-Zn alloys, so Obtained Ag-Zn alloys are put into vacuum induction furnace successively with other metal charges again afterwards and are smelted.
- 5. the manufacture method of rotary drum disk two phase stainless steel according to claim 2, it is characterised in that described to smelt After journey, slurry is poured into steel ingot, control temperature carries out hot rolling treatment at 1000-1300 DEG C, and control temperature is in 960- Solution strengthening processing is carried out at 1150 DEG C, strengthened solution time was controlled at 60-300 seconds, was then cooled to room temperature again, both The antibacterial duplex stainless steel.
- 6. the manufacture method of rotary drum disk two phase stainless steel according to claim 1, it is characterised in that the antibacterial two-phase Stainless steel has excellent antibacterial effect, its anti-Staphylococcus aureus and Escherichia coli rate up to more than 99.9%, meanwhile, The antibacterial duplex stainless steel also has very excellent intensity and toughness, especially suitable for corn oil, water, sediment blending agent Two-phase stainless steel large-sized seperator disk.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711069018.7A CN108004485A (en) | 2017-11-02 | 2017-11-02 | Antibacterial duplex stainless steel of the composite nanoparticle containing silver-colored zinc and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711069018.7A CN108004485A (en) | 2017-11-02 | 2017-11-02 | Antibacterial duplex stainless steel of the composite nanoparticle containing silver-colored zinc and preparation method thereof |
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| CN108004485A true CN108004485A (en) | 2018-05-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614124A (en) * | 2018-12-20 | 2019-12-27 | 南京工程学院 | Nano-gold catalyst with multi-stage structure and preparation method thereof |
Citations (3)
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|---|---|---|---|---|
| CN1789471A (en) * | 2005-12-21 | 2006-06-21 | 上海材料研究所 | Antibacterial austenitic stainless steel and its manufacturing method |
| CN104471092A (en) * | 2012-03-09 | 2015-03-25 | 新日铁住金不锈钢株式会社 | Ferrite-austenite 2-phase stainless steel plate having low in-plane anisotropy and method for producing same |
| CN106978575A (en) * | 2017-03-23 | 2017-07-25 | 合肥协耀玻璃制品有限公司 | A kind of excellent two phase stainless steel of low nickel chromium triangle processing characteristics and its production technology |
-
2017
- 2017-11-02 CN CN201711069018.7A patent/CN108004485A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789471A (en) * | 2005-12-21 | 2006-06-21 | 上海材料研究所 | Antibacterial austenitic stainless steel and its manufacturing method |
| CN104471092A (en) * | 2012-03-09 | 2015-03-25 | 新日铁住金不锈钢株式会社 | Ferrite-austenite 2-phase stainless steel plate having low in-plane anisotropy and method for producing same |
| CN106978575A (en) * | 2017-03-23 | 2017-07-25 | 合肥协耀玻璃制品有限公司 | A kind of excellent two phase stainless steel of low nickel chromium triangle processing characteristics and its production technology |
Non-Patent Citations (1)
| Title |
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| 向红亮，等: "含Ag抗菌双相不锈钢组织及抗菌性能研究", 《金属学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614124A (en) * | 2018-12-20 | 2019-12-27 | 南京工程学院 | Nano-gold catalyst with multi-stage structure and preparation method thereof |
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