CN110039041A - Anti-bacteria stainless steel composite granule, anti-bacteria stainless steel and preparation method thereof - Google Patents
Anti-bacteria stainless steel composite granule, anti-bacteria stainless steel and preparation method thereof Download PDFInfo
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- CN110039041A CN110039041A CN201910323499.2A CN201910323499A CN110039041A CN 110039041 A CN110039041 A CN 110039041A CN 201910323499 A CN201910323499 A CN 201910323499A CN 110039041 A CN110039041 A CN 110039041A
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- 239000010935 stainless steel Substances 0.000 title claims abstract description 184
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 184
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 139
- 239000002131 composite material Substances 0.000 title claims abstract description 77
- 239000008187 granular material Substances 0.000 title claims abstract description 75
- 238000002360 preparation method Methods 0.000 title claims description 26
- 239000000843 powder Substances 0.000 claims abstract description 66
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 claims abstract description 60
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910001923 silver oxide Inorganic materials 0.000 claims abstract description 30
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 29
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 23
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 22
- 238000005245 sintering Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 229910052799 carbon Inorganic materials 0.000 claims description 19
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 16
- 239000005864 Sulphur Substances 0.000 claims description 16
- 229910052698 phosphorus Inorganic materials 0.000 claims description 16
- 239000011574 phosphorus Substances 0.000 claims description 16
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- 239000011651 chromium Substances 0.000 claims description 13
- 229910052804 chromium Inorganic materials 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 10
- 239000011863 silicon-based powder Substances 0.000 claims description 9
- 241000894006 Bacteria Species 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000010792 warming Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 abstract description 22
- 239000004332 silver Substances 0.000 abstract description 22
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000003115 biocidal effect Effects 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 4
- 230000001590 oxidative effect Effects 0.000 abstract description 4
- 230000000845 anti-microbial effect Effects 0.000 description 19
- 238000004519 manufacturing process Methods 0.000 description 16
- 239000002245 particle Substances 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 239000012535 impurity Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000010946 fine silver Substances 0.000 description 4
- 230000036541 health Effects 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 239000011812 mixed powder Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 102220042174 rs141655687 Human genes 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000010310 metallurgical process Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
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- B22F1/0003—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0026—Matrix based on Ni, Co, Cr or alloys thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
-
- 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
-
- 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
-
- 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
Abstract
The invention belongs to stainless steel technical fields, more particularly to a kind of anti-bacteria stainless steel composite granule, it is in terms of 100% by the mass percent of the anti-bacteria stainless steel composite granule, it include: nanoscale silver powder 0.2%~1%, chromium powder 16%~18%, manganese powder 0%~1%, nickel powder 0~0.6%, iron powder 78%~83%.Anti-bacteria stainless steel composite granule provided in an embodiment of the present invention, pass through addition nanoscale silver powder, chromium powder, manganese powder, nickel powder etc., while improving the performances such as stainless steel stability, oxidative resistance, corrosion resistance, homogeneous distribution is easily formed in composite granule since nanometer level silver oxide powder diameter is small, to effectively realize silver mutually distribution more evenly, the usage amount for reducing silver, improves the antibiotic property of stainless steel.
Description
Technical field
The invention belongs to stainless steel technical field more particularly to a kind of anti-bacteria stainless steel composite granule, anti-bacteria stainless steel and
Preparation method.
Background technique
Stainless steel is with its excellent processing performance, daily the features such as corrosion resistance, mechanical property and surface-brightening
It is widely used in terms of production and living.Meanwhile stainless steel is also one of the material that public medical and health field is most widely used.With
People's substance and improvement of living standard, requirement of the people to environment, health and health is also higher and higher, especially relates to
Food safety, health care etc..Due to the extensive use of stainless steel in daily production and life, in addition to the power to stainless steel
It is higher and higher outer to learn itself performance requirement such as performance, corrosion resistance, the anti-microbial property of stainless steel is also expressed higher and higher
It is expected that.However but there is no antibiotic properties for stainless steel itself, during using stainless steel, still possessing very high risk causes
It is infected by contact, therefore, developing, there is the anti-bacteria stainless steel of wide application prospect to be of great significance and be worth.
Existing anti-bacteria stainless steel mainly passes through the method production of casting, and traditional casting metal material fabrication process obtains
The method of anti-bacteria stainless steel has the disadvantages of consumption to the energy and raw material is high, high production cost, environment is unfriendly.Compared to casting
It makes, PM technique includes freedom shape height, and product does not need or only need a small amount of machining, and stock utilization is high
Up to 95% or more, it is easy to the features such as producing in enormous quantities.Therefore anti-bacteria stainless steel is prepared using PM technique to have a extensive future.It passes
The canonical process that anti-bacteria stainless steel is prepared using powder metallurgical process of system are as follows: by the powder of stainless steel and silver powder of commodity production
It is mixed, later compression moulding, finally sintering obtains preliminary product.
However, the silver powder partial size commercially produced is thicker, and size is generally ten since metallic silver has fabulous ductility
A few to tens of microns differ.Cause it is traditional by powder metallurgical process by the powder of stainless steel of commodity production and silver powder into
The method that row mixing compacting sintering prepares anti-bacteria stainless steel, there are stainless steel silver to be mutually distributed not enough dispersion, silver-colored segregation phenomenon ten
Divide serious defect, so that the anti-microbial property of the anti-bacteria stainless steel of production is unstable, anti-microbial property difference etc..However, nanometer
The fine silver powder of grade requires to produce using specific process, thus the price is very expensive, is not suitable for industrialization large-scale application.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of anti-bacteria stainless steel composite granule, it is intended to which solution is led in the prior art
It crosses powder metallurgical process and prepares anti-bacteria stainless steel, easily lead to silver and be mutually unevenly distributed, silver-colored segregation phenomenon is serious, thus stainless
Steel anti-microbial property is not sufficiently stable, the technical problem of anti-microbial property difference.
The another object of the embodiment of the present invention is to provide a kind of preparation method of anti-bacteria stainless steel.
A further object of the embodiment of the present invention is to provide a kind of anti-bacteria stainless steel.
In order to achieve the above-mentioned object of the invention, The technical solution adopted by the invention is as follows:
A kind of anti-bacteria stainless steel composite granule, by the mass percent of the anti-bacteria stainless steel composite granule be 100% in terms of,
Include:
Preferably, the partial size of the nanoscale silver powder is 200 nanometers~800 nanometers, and purity is 99.5% or more.
It preferably, is in terms of 100% by the mass percent of the anti-bacteria stainless steel composite granule, the anti-bacteria stainless steel is multiple
Close powder further include: mass percent is 0.01% sulphur powder below, and mass percent is 0.75% silicon powder below, quality hundred
Score is 0.12% carbon dust below, and mass percent is 0.04% phosphorus powder below.
Preferably, the chromium powder partial size is 10um~40um, and purity is 99.5% or more；And/or
The manganese powder partial size is 10um~40um, and purity is 99.5% or more；And/or
The nickel powder partial size is 10um~40um, and purity is 99.5% or more；And/or
The sulphur powder partial size is 10um~40um, and purity is 99.5% or more；And/or
The carbon dust partial size is 10um~40um, and purity is 99.5% or more；And/or
The phosphorus powder partial size is 10um~40um, and purity is 99.5% or more；And/or
The silicon powder partial size is 10um~40um, and purity is 99.5% or more；And/or
The partial size of the iron powder is 10um~40um, and purity is 99.5% or more.
A kind of preparation method of anti-bacteria stainless steel, comprising the following steps:
The formula material of above-mentioned anti-bacteria stainless steel composite granule is obtained, is uniformly mixed, obtains uniformly mixed antibacterial not
Become rusty steel composite granule；
The uniformly mixed anti-bacteria stainless steel composite granule is pressed into anti-bacteria stainless steel product green compact；
The anti-bacteria stainless steel product green compact are sintered, anti-bacteria stainless steel product is obtained.
Preferably, described that the uniformly mixed anti-bacteria stainless steel composite granule is pressed into anti-bacteria stainless steel product green compact
Method be, by the uniformly mixed anti-bacteria stainless steel composite granule by cold moudling and/or it is hot-forming be pressed into it is anti-
Bacterium stainless steel product green compact.
Preferably, the condition of the sintering is under protective gas atmosphere, to be sintered using step-up temperature.
Preferably, the protective gas is selected from: one or more of in nitrogen, argon gas or hydrogen.
Preferably, the method for the step-up temperature is to be warming up to 250 DEG C~400 DEG C, sintering 30~after sixty minutes, and continue
1000 DEG C~1380 DEG C are warming up to, is sintered 120~180 minutes, natural cooling.
A kind of anti-bacteria stainless steel is in terms of 100% by the mass percent of the anti-bacteria stainless steel, comprising: 0.2%~1%
Nanometer level silver oxide, 16%~18% chromium, 0%~1% manganese, 0~0.6% nickel, iron surplus.
Anti-bacteria stainless steel composite granule provided in an embodiment of the present invention, by adding nanoscale silver powder, chromium powder, manganese
Powder, nickel powder etc. improve the antibiotic property of stainless steel while improving the performances such as stainless steel stability, oxidative resistance, corrosion resistance.
Wherein, silver oxide is as a kind of silver oxide, has the characteristics that hard and crisp, and nanometer level silver oxide is added to stainless steel composite powder
In body, silver mutually will more effectively realize silver far smaller than by the obtained silver-colored phase of directly addition industrialization silver powder in powder
Phase is uniformly distributed, and improves stainless steel composite granule anti-microbial property.Simultaneously as the preparation process letter of nanometer level silver oxide
Single, manufacture use cost is low, to reduce usage amount silver-colored in stainless steel composite granule, reduces manufacturing cost.
The preparation method of anti-bacteria stainless steel provided in an embodiment of the present invention, using above-mentioned anti-bacteria stainless steel composite granule as former material
Material, can be obtained anti-bacteria stainless steel product by mixing, compacting, sintering.Due to the preparation method directly with above-mentioned antibacterial it is stainless
Steel composite granule is raw material, and the element powders of small particle easily form uniformly mixed powder, and silver is mutually evenly distributed in stainless steel,
Good antimicrobial effect.Meanwhile the preparation process is simple, industrialized production easy to accomplish.
Anti-bacteria stainless steel provided in an embodiment of the present invention, due to including: 0.2%~1% nanometer level silver oxide, 16%~
18% chromium, 0%~1% manganese, 0~0.6% nickel, iron surplus, by addition nanoscale silver powder and other are small
The elemental constituent of partial size makes each element in composite granule be evenly distributed, and especially silver is mutually evenly distributed.Thus, the present invention is implemented
The anti-bacteria stainless steel that example provides, silver are mutually evenly distributed, and anti-microbial property is good.
Detailed description of the invention
Fig. 1 is the preparation technology flow chart of anti-bacteria stainless steel provided in an embodiment of the present invention.
Fig. 2 be in antibacterial tests provided in an embodiment of the present invention through 24 hours culture after common stainless steel remained on surface bacterium
Situation.
Fig. 3 is the antibacterial that after culture in 24 hours prepared by the embodiment of the present invention in antibacterial tests provided in an embodiment of the present invention
Stainless steel pipe surface remaining bacteria situation.
Specific embodiment
To keep the purpose, technical solution and technical effect of the embodiment of the present invention clearer, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.In conjunction with the embodiment in the present invention, ordinary skill
Personnel's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include one or more of the features.In the description of the present invention,
The meaning of " plurality " is two or more, unless otherwise specifically defined.
The embodiment of the invention provides a kind of anti-bacteria stainless steel composite granules, with the matter of the anti-bacteria stainless steel composite granule
Measuring percentage is 100% meter, comprising:
Anti-bacteria stainless steel composite granule provided in an embodiment of the present invention, by adding nanoscale silver powder, chromium powder, manganese
Powder, nickel powder etc. improve the antibiotic property of stainless steel while improving the performances such as stainless steel stability, oxidative resistance, corrosion resistance.
Wherein, silver oxide is as a kind of silver oxide, has the characteristics that hard and crisp, and nanometer level silver oxide is added to stainless steel composite powder
In body, silver mutually will more effectively realize silver far smaller than by the obtained silver-colored phase of directly addition industrialization silver powder in powder
Phase is uniformly distributed, and improves stainless steel composite granule anti-microbial property.Simultaneously as the preparation process letter of nanometer level silver oxide
Single, manufacture use cost is low, to reduce usage amount silver-colored in stainless steel composite granule, reduces manufacturing cost.
Specifically, above-mentioned anti-bacteria stainless steel composite granule, using nanoscale silver powder, the preparation of nanometer level silver oxide
Simple process, manufacturing cost is low, and the silver in composite granule more evenly is effectively realized using nanometer level silver oxide and is mutually distributed, drop
The use of low silver.And silver oxide has higher silver ion leaching rate, anti-microbial property is excellent, effectively increases stainless steel composite powder
The anti-microbial property of body.Content of the nanoscale silver powder in composite granule is 0.2%~1%, multiple in the content interval
The antibiotic rate for closing powder can reach 90% or more.When nanoscale silver content is too low, the anti-microbial property of composite granule is poor,
Antibacterial requirement is not achieved；When nanometer level silver oxide too high levels, silver oxide, which is easily assembled, is agglomerated into bulky grain, is unfavorable for silver oxide
It is formed in composite granule homogeneous and at high cost.Wherein, iron powder is the essential element ingredient of stainless steel composite granule.This implementation
The anti-bacteria stainless steel composite granule that example provides can be used for powder metallurgical technique.
As a preferred embodiment, the partial size of the nanoscale silver powder is 200 nanometers~800 nanometers, and purity is
99.5% or more.The silver oxide powder that partial size is 200 nanometers~800 nanometers, partial size is small, in stainless steel composite granule, is easy
It realizes homogeneous distribution, to realize homogeneous distribution of the silver in stainless steel, promotes the anti-microbial property and anti-microbial property of stainless steel
Uniformity.In addition, be mutually evenly distributed in stainless steel composite granule due to silver-colored in the embodiment of the present invention, the present invention is multiple
The stainless steel for closing powder preparation has long-term bacteriostasis, avoids silver and mutually floats on stainless steel surface layer, because of antibacterial caused by falling off
The problem of performance declines.The purity of nanoscale silver powder of the present invention is 99.5% or more, purity more high impurity content more is held
It is easy to control in reduced levels, properties of product are also more easy to control.In some embodiments, the partial size of nanometer level silver oxide can with but
Not just for 200 nanometers, 300 nanometers, 500 nanometers, 600 nanometers, 800 nanometers etc., and/or, the purity of nanometer level silver oxide can
With but not just for 99.5%, 99.6%, 99.8%, 99.9% etc..
Specifically, chromium powder is main alloying component in anti-bacteria stainless steel composite granule of the embodiment of the present invention.Chromium can be effective
Promote the passivation of stainless steel that stainless steel is simultaneously made to keep stablizing passive state, improves the oxidative resistance medium and acid chloride medium of steel
Performance.Chromium can also improve the resistance to local corrosion of steel, such as intercrystalline corrosion, spot corrosion, crevice corrosion etc..In addition, in alloys such as nickel powders
Under the compound action of powder, chromium can improve stainless steel to the tolerance of the reductants such as organic acid, urea, alkaline medium.
In some embodiments, the chromium powder partial size is 10um~40um, and purity is 99.5% or more, and the powder of small particle is conducive to mix
It closes uniformly, purity is higher, and impurity is fewer, and properties of product are better.
Specifically, nickel powder, manganese powder etc. are the micro adding ingredient of anti-bacteria stainless steel composite granule, wherein nickel powder can be effective
The intensity and plasticity and thermodynamic stability of adjusting stainless steel.Nickel powder can also significantly improve chromium in the embodiment of the present invention, manganese
The processing performance of powder, to significantly improve the lumber recovery that composite granule prepares stainless steel.As a preferred embodiment, the nickel powder
Partial size is 10um~40um, and purity is 99.5% or more, and the powder of powder small particle is conducive to be uniformly mixed, the higher impurity of purity
Fewer, properties of product are better.Manganese have good deoxidizing capacity, can be reacted with the iron oxide in steel, be generated as manganese oxide into
Enter clinker, so as to improve the quality of steel, especially reduces the brittleness of steel, improve the intensity and hardness of steel.Manganese powder too high levels are easy
Ductility is caused to be deteriorated, brittleness increases.As a preferred embodiment, the manganese powder partial size is 10um~40um, purity 99.5%
More than, the powder of small particle is conducive to be uniformly mixed, and purity is higher, and impurity is fewer, and properties of product are better.
It as a preferred embodiment, is the antibacterial in terms of 100% by the mass percent of the anti-bacteria stainless steel composite granule
Stainless steel composite granule further include: mass percent is 0.01% sulphur powder below, and mass percent is 0.75% silicon below
Powder, mass percent are 0.12% carbon dust below, and mass percent is 0.04% phosphorus powder below.The members such as sulphur, silicon, phosphorus, carbon
Element is the inevitable impurity element introduced in smelting process, has certain influence to the performance of stainless steel, wherein element sulphur
It will lead to stainless steel and occur hot-short phenomenon in hot procedure.As a preferred embodiment, the partial size of the sulphur powder be 10um~
40um, purity are 99.5% or more, and the powder of small particle is conducive to be uniformly mixed, and purity is higher, and impurity is fewer, and properties of product are got over
It is good.Silicon is a kind of beneficial element in certain content, the intensity for making steel is dissolved in ferrite in steel, hardness increases, plasticity, tough
Property reduce.As a preferred embodiment, the partial size of the silicon powder is 10um~40um, and purity is 99.5% or more, the powder of small particle
Body is conducive to be uniformly mixed, and purity is higher, and impurity is fewer, and properties of product are better.Though phosphorus can be such that the intensity of steel, hardness increases,
Plasticity, impact flexibility is caused to significantly reduce.Especially in low temperature, easily there is cold short phenomenon.As a preferred embodiment, the phosphorus
The partial size of powder is 10um~40um, and purity is 99.5% or more, and the powder of small particle is conducive to be uniformly mixed, the higher impurity of purity
Fewer, properties of product are better.Carbon is mainly manifested in two aspects to the influence of tissue in bar section of stainless steel, and one side carbon is stable
The element of austenite, on the other hand since the affinity of carbon and chromium is very big, and chromium formation-series complexity carbide, but carbon
Too high levels are unfavorable for the techniques such as welding, cold deformation.As a preferred embodiment, the partial size of the carbon dust is 10um~40um, pure
Degree is 99.5% or more, and the powder of small particle is conducive to be uniformly mixed, and purity is higher, and impurity is fewer, and properties of product are better.Therefore,
In order to guarantee anti-bacteria stainless steel composite granule provided in an embodiment of the present invention preparation stainless steel performance, the strict control present invention
The content of the elements such as sulphur, silicon, phosphorus, carbon in embodiment composite granule.Make the mass percent 0.01% of sulphur powder hereinafter, silicon powder
Mass percent is 0.75% hereinafter, the mass percent of carbon dust is 0.12% hereinafter, the mass percent of phosphorus powder is 0.04%
Below.
As a preferred embodiment, the chromium powder partial size is 10um~40um, and purity is 99.5% or more；The manganese powder partial size
For 10um~40um, purity is 99.5% or more；The nickel powder partial size is 10um~40um, and purity is 99.5% or more；It is described
Sulphur powder partial size is 10um~40um, and purity is 99.5% or more；The carbon dust partial size be 10um~40um, purity be 99.5% with
On；The phosphorus powder partial size is 10um~40um, and purity is 99.5% or more；The silicon powder partial size is 10um~40um, and purity is
99.5% or more；The partial size of the iron powder is 10um~40um, and purity is 99.5% or more.The higher impurity of elemental powder purity
Content is lower, and properties of product are more easy to control, and therefore, the purity of elemental powder is 99.5% or more in the embodiment of the present invention,
Both industrial production demand had been met, and also can preferably control impurity content, to control the property of the stainless steel tube of composite granule preparation
Energy.Each element diameter of particle is 10um~40um in the embodiment of the present invention, and elemental powder particle size will affect composite granule
Mixed uniformity, the powder of small particle are more advantageous to form uniformly mixed anti-bacteria stainless steel composite granule.
As shown in Fig. 1, the embodiment of the invention also provides a kind of preparation methods of anti-bacteria stainless steel, including following step
It is rapid:
S10. the formula ratio of above-mentioned anti-bacteria stainless steel composite granule is obtained, is uniformly mixed, obtains uniformly mixed antibacterial not
Become rusty steel composite granule；
S20. the uniformly mixed anti-bacteria stainless steel composite granule is pressed into anti-bacteria stainless steel product green compact；
S30. the anti-bacteria stainless steel product green compact are sintered, anti-bacteria stainless steel product is obtained.
The preparation method of anti-bacteria stainless steel provided in an embodiment of the present invention, using above-mentioned anti-bacteria stainless steel composite granule as former material
Material, can be obtained anti-bacteria stainless steel product by mixing, compacting, sintering.Due to the preparation method directly with above-mentioned antibacterial it is stainless
Steel composite granule is raw material, and the element powders of small particle easily form uniformly mixed powder, and silver is mutually evenly distributed in stainless steel,
Good antimicrobial effect.Meanwhile the preparation process is simple, industrialized production easy to accomplish.
Specifically, in above-mentioned steps S10, above-mentioned anti-bacteria stainless steel composite granule is obtained, is uniformly mixed, is uniformly mixed
Anti-bacteria stainless steel composite granule.The antibacterial powder of silver oxide containing Nano grade in above-mentioned anti-bacteria stainless steel composite granule, with
And other micro scaled elemental powder, the elemental powder of small particle are easily uniformly mixed, and are uniformly distributed elemental powder, are improved not
The uniformity of silver-colored phase in rust steel, to improve the anti-microbial properties such as the antibacterial stability of stainless steel.The embodiment of the present invention is to mixing
Mode is not specifically limited, as long as can achieve the effect that be uniformly mixed each element.In some embodiments, mixed side
Formula can be using planetary batch mixer, and the mixings such as three-dimensional material mixer means or mode are realized.
Specifically, in above-mentioned steps S20, it is stainless that the uniformly mixed anti-bacteria stainless steel composite granule is pressed into antibacterial
Steel product green compact.Anti-bacteria stainless steel composite granule is pressed into the green compact of stainless steel product, so as to follow-up sintering processing.Some
In embodiment, by the uniformly mixed anti-bacteria stainless steel composite granule by cold moudling and/or it is hot-forming be pressed into it is anti-
Bacterium stainless steel product green compact.Wherein, cold moudling can be used for manufacturing the relatively simple product of shape；Hot-forming, formability is more
It is good, it can be used for preparing the more complicated product of shape.
Specifically, in above-mentioned steps S30, the anti-bacteria stainless steel product green compact is sintered, anti-bacteria stainless steel product is obtained.It burns
Knot be make compacting green compact in composite granule further combined at a kind of high temperature to improve product strength and other performances
Science and engineering skill.The physical and chemical processes such as mutually flowing, diffusion, melting, recrystallization occur for powder particle during the sintering process, such as: water
Point or organic matter evaporation or volatilization, the exclusion of adsorbed gas, the elimination of stress, the reduction of powder particle surface oxide,
Material transport, recrystallization, the crystal grain of intergranular are grown up, thus increase intergranular crystal contact face, keep body of powder further
Some or all of holes are eliminated in densification.
As a preferred embodiment, the condition of the sintering is under protective gas atmosphere, to be sintered using step-up temperature
Processing.It is sintered the oxidation that can effectively avoid each element component under a shielding gas, prevents properties of product from reducing.As preferred
Embodiment, the protective gas are selected from: one or more of in nitrogen, argon gas or hydrogen.Wherein, the indifferent gas such as nitrogen, argon gas
Body and hydrogen shield gas, can effectively remove oxygen, green compact is prevented to be oxidized during the sintering process, prevent product mechanical property from dropping
It is low.Oxygen content can be effectively reduced since hydrogen molecule is small, the phase is easier to be discharged after sintering, keeps sintered part consistency higher.?
In some embodiments, protective gas is selected from mixed gas, the mixed gas of argon gas and hydrogen or the hydrogen and argon of nitrogen and hydrogen
The mixed gas of gas.
As a preferred embodiment, described to be by the method that temperature programming is sintered, under protective gas atmosphere,
It is warming up to 250 DEG C~400 DEG C, sintering 30~after sixty minutes, 1000 DEG C~1380 DEG C are continuously heating to, is sintered 120~180 points
Clock, natural cooling.Wherein, the first stage is warming up to 250 DEG C~400 DEG C, is sintered 30~60 minutes, silver oxide is heated to 250 DEG C
Start to decompose, releases oxygen, be heated to decompose rapidly at 300 DEG C or more, the embodiment of the present invention is warming up to 250 DEG C~400 DEG C
Sintering 30~60 minutes, makes silver oxide in green compact composite granule sufficiently resolve into fine silver granules.After silver oxide decomposes completely, continue
1000 DEG C~1380 DEG C are warming up to, is sintered 120~180 minutes, green compact is sintered, composite granule in green compact is combined
Form stainless steel product.The sintering condition can be realized the combination of each element ingredient in anti-bacteria stainless steel composite granule, formative
The excellent stainless steel product of energy.In addition, silver oxide is divided by sintering since silver oxide powder is evenly distributed in composite granule
At Argent grain, therefore in stainless steel tube, silver is mutually also evenly distributed solution, so that the stainless steel tube anti-microbial property of preparation is stablized persistently.
The embodiment of the invention also provides a kind of anti-bacteria stainless steel, the mass percent with the anti-bacteria stainless steel is
100% meter, comprising: 0.2%~1% nanometer level silver oxide, 16%~18% chromium, 0%~1% manganese, 0~0.6%
Nickel, the iron of surplus.Anti-bacteria stainless steel provided in this embodiment be made of above-mentioned anti-bacteria stainless steel composite granule or the antibacterial not
Rust steel is prepared by the preparation method of above-mentioned stainless steel.
Anti-bacteria stainless steel provided in an embodiment of the present invention, due to including: 0.2%~1% nanometer level silver oxide, 16%~
18% chromium, 0%~1% manganese, 0~0.6% nickel, the iron of surplus.By addition nanoscale silver powder and other
The elemental constituent of small particle makes each element in composite granule be evenly distributed, and especially silver is mutually evenly distributed.Thus, the present invention is real
The anti-bacteria stainless steel of example offer is applied, silver is mutually evenly distributed, and anti-microbial property is good.
As a preferred embodiment, the anti-bacteria stainless steel further include: mass percent is 0.01% sulphur below, quality hundred
Score is 0.75% silicon below, and mass percent is 0.12% carbon below, and mass percent is 0.04% phosphorus below.
In some embodiments, the nano silver in the anti-bacteria stainless steel is 200 nanometers~800 nanometers by partial size, purity
It is provided for 99.5% or more nanoscale silver powder.
In some embodiments, the chromium in the anti-bacteria stainless steel, by partial size be 10um~40um, purity be 99.5% with
On chromium powder provide.
In some embodiments, the manganese in the anti-bacteria stainless steel, by partial size be 10um~40um, purity be 99.5% with
On manganese powder provide.
In some embodiments, the nickel in the anti-bacteria stainless steel, by partial size be 10um~40um, purity be 99.5% with
On nickel powder provide.
In some embodiments, the sulphur in the anti-bacteria stainless steel, by partial size be 10um~40um, purity be 99.5% with
On sulphur powder provide.
In some embodiments, the carbon in the anti-bacteria stainless steel, by partial size be 10um~40um, purity be 99.5% with
On carbon dust provide.
In some embodiments, the phosphorus in the anti-bacteria stainless steel, by partial size be 10um~40um, purity be 99.5% with
On phosphorus powder provide.
In some embodiments, the silicon in the anti-bacteria stainless steel, by partial size be 10um~40um, purity be 99.5% with
On silicon powder provide.
In some embodiments, the iron in the anti-bacteria stainless steel, by partial size be 10um~40um, purity be 99.5% with
On iron powder provide.
As a preferred embodiment, the nano silver in the anti-bacteria stainless steel is 200 nanometers~800 nanometers by partial size, purity
It is provided for 99.5% or more nanoscale silver powder；Chromium in the anti-bacteria stainless steel is 10um~40um by partial size, pure
Degree provides for 99.5% or more chromium powder；Manganese in the anti-bacteria stainless steel is 10um~40um, purity 99.5% by partial size
Above manganese powder provides；Nickel in the anti-bacteria stainless steel is 10um~40um, the nickel powder that purity is 99.5% or more by partial size
It provides；Sulphur in the anti-bacteria stainless steel, is 10um~40um by partial size, and purity provides for 99.5% or more sulphur powder；It is described
Carbon in anti-bacteria stainless steel, is 10um~40um by partial size, and purity provides for 99.5% or more carbon dust；The anti-bacteria stainless steel
In phosphorus, be 10um~40um by partial size, purity provides for 99.5% or more phosphorus powder；Silicon in the anti-bacteria stainless steel, by
Partial size is 10um~40um, and purity provides for 99.5% or more silicon powder；Iron in the anti-bacteria stainless steel is 10um by partial size
~40um, purity provide for 99.5% or more iron powder.
Above-mentioned technical proposal is illustrated below by way of multiple embodiments.
Embodiment 1
As unit of mass fraction, choose 17 parts of partial sizes be D90=22um, purity be 99.5% or more chromium powder, 0.5 part
It is 500 nanometers from partial size, the nanoscale silver powder of 99.5% or more purity, 82.5 parts of partial sizes are D90=22um, and purity is
99.5% or more iron powder.
The powder prepared is put into three-dimensional material mixer and is uniformly mixed.Mixed powder is put into mold later, cold
A disk green part is prepared under molded.
Green part is put into sintering furnace, under the protection of nitrogen protective atmosphere, heat preservation 30 minutes is first carried out at 400 DEG C,
So that silver oxide is decomposed and reacts generation fine silver.It is continuously heating to 1200 DEG C of sintering temperatures later, it is small to be sintered 2 to product
When, obtain initial product workpiece.
Embodiment 2
As unit of mass fraction, choose 17 parts of partial sizes be D90=22um, purity be 99.5% or more chromium powder, 0.5 part
It is 500 nanometers from partial size, the nanoscale silver powder of 99.5% or more purity, 82.5 parts of partial sizes are D90=22um, and purity is
99.5% or more iron powder.
The powder prepared is put into three-dimensional material mixer and is uniformly mixed.Mixed powder is put into mold later, cold
A door handle green part is prepared under molded.
Green part is put into sintering furnace, under the conditions of argon gas gas shielded, heat preservation 30 minutes is first carried out at 400 DEG C, makes to aoxidize
Silver, which decomposes to react, generates fine silver.It is continuously heating to 1200 DEG C of sintering temperatures later, product is sintered 2 hours, is obtained
Initial product workpiece.
Performance test
Stainless steel disk made from the present embodiment 1 is subjected to anti-microbial property test, " antibacterial adds according to JISZ 2801-2010
Work product-antibiotic property test method and antibacterial effect ", antibiotic rate is higher than 90%.Test result is as shown in Fig. 2 and 3.Wherein,
Attached drawing 2 is that common stainless steel surface bacteria residual condition, attached drawing 3 are to pass through in antibacterial tests after culture in 24 hours in antibacterial experiment
The anti-bacteria stainless steel pipe surface bacterium residual condition that after culture in 24 hours prepared by the embodiment of the present invention.From attached drawing 2 and 3 it is found that originally
The anti-bacteria stainless steel that inventive embodiments provide has more significant antibacterial effect relative to common stainless steel bacteria on surfaces, small through 24
When culture after the remaining bacterial number of stainless steel surface it is seldom, be computed its antibiotic rate and reach 95%.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of anti-bacteria stainless steel composite granule, which is characterized in that with the mass percent of the anti-bacteria stainless steel composite granule
For 100% meter, comprising:
2. anti-bacteria stainless steel composite granule as described in claim 1, which is characterized in that the grain of the nanoscale silver powder
Diameter is 200 nanometers~800 nanometers, and purity is 99.5% or more.
3. anti-bacteria stainless steel composite granule as described in claim 1, which is characterized in that with the anti-bacteria stainless steel composite granule
Mass percent be 100% meter, the anti-bacteria stainless steel composite granule further include: mass percent be 0.01% sulphur below
Powder, mass percent are 0.75% silicon powder below, and mass percent is 0.12% carbon dust below, and mass percent is
0.04% phosphorus powder below.
4. anti-bacteria stainless steel composite granule as claimed in claim 3, which is characterized in that the partial size of the chromium powder be 10um~
40um, purity are 99.5% or more；And/or
The partial size of the manganese powder is 10um~40um, and purity is 99.5% or more；And/or
The partial size of the nickel powder is 10um~40um, and purity is 99.5% or more；And/or
The partial size of the sulphur powder is 10um~40um, and purity is 99.5% or more；And/or
The partial size of the carbon dust is 10um~40um, and purity is 99.5% or more；And/or
The partial size of the phosphorus powder is 10um~40um, and purity is 99.5% or more；And/or
The partial size of the silicon powder is 10um~40um, and purity is 99.5% or more；And/or
The partial size of the iron powder is 10um~40um, and purity is 99.5% or more.
5. a kind of preparation method of anti-bacteria stainless steel, which comprises the following steps:
The formula material of the anti-bacteria stainless steel composite granule as described in Claims 1 to 4 any one is obtained, is uniformly mixed, obtains
To uniformly mixed anti-bacteria stainless steel composite granule；
The uniformly mixed anti-bacteria stainless steel composite granule is pressed into anti-bacteria stainless steel product green compact；
The anti-bacteria stainless steel product green compact are sintered, anti-bacteria stainless steel product is obtained.
6. the preparation method of anti-bacteria stainless steel as claimed in claim 5, which is characterized in that described to resist described uniformly mixed
The compound pressed by powder of bacterium stainless steel is to answer the uniformly mixed anti-bacteria stainless steel at the method for anti-bacteria stainless steel product green compact
Powder is closed by cold moudling and/or hot-forming is pressed into anti-bacteria stainless steel product green compact.
7. the preparation method of anti-bacteria stainless steel as claimed in claim 5, which is characterized in that the condition of the sintering are as follows: protecting
It protects under atmosphere, is sintered using step-up temperature.
8. the preparation method of anti-bacteria stainless steel as claimed in claim 7, which is characterized in that the protective gas is selected from: nitrogen,
It is one or more of in argon gas or hydrogen.
9. the preparation method of anti-bacteria stainless steel as claimed in claim 7 or 8, which is characterized in that the method for the step-up temperature
Are as follows: it is warming up to 250 DEG C~400 DEG C, sintering 30~after sixty minutes, 1000 DEG C~1380 DEG C are continuously heating to, sintering 120~180
Minute, natural cooling.
10. a kind of anti-bacteria stainless steel, which is characterized in that by the mass percent of the anti-bacteria stainless steel be 100% in terms of, comprising:
0.2%~1% nanometer level silver oxide, 16%~18% chromium, 0%~1% manganese, 0~0.6% nickel, the iron of surplus.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589093A (en) * | 2020-12-15 | 2021-04-02 | 深圳艾利佳材料科技有限公司 | Nano-silver antibacterial agent, preparation method and preparation method of antibacterial stainless steel |
| CN113523267A (en) * | 2020-04-21 | 2021-10-22 | 香港大学 | Novel antibacterial composite powder, stainless steel, preparation method and application thereof |
| CN114178534A (en) * | 2020-08-25 | 2022-03-15 | 香港大学 | Antibacterial stainless steel powder and preparation method and application thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4322458A (en) * | 1977-08-18 | 1982-03-30 | Motoren-Und Turbinen Union | Molded ceramic member, particularly of silicon ceramic, and method for the manufacture thereof |
| JP2004292894A (en) * | 2003-03-27 | 2004-10-21 | Mitsubishi Materials Corp | Silver clay for forming porous sintered compact |
| CN101230438A (en) * | 2007-01-22 | 2008-07-30 | 宝山钢铁股份有限公司 | Austenitic antibiotic stainless steel and method for manufacturing same |
| CN102534410A (en) * | 2012-02-24 | 2012-07-04 | 宝山钢铁股份有限公司 | Silver-containing austenitic antimicrobial stainless steel and manufacturing method thereof |
| CN103667610A (en) * | 2012-09-06 | 2014-03-26 | 无锡新大中薄板有限公司 | Heat treatment process of antimicrobial martensitic stainless steel |
| CN104379496A (en) * | 2011-10-05 | 2015-02-25 | 得克萨斯A&M大学*** | Antibacterial metallic nanofoam and related methods |
| CN105921755A (en) * | 2016-06-22 | 2016-09-07 | 依波精品（深圳）有限公司 | High-nitrogen nickel-free antibacterial stainless steel watch case and manufacturing method thereof |
| CN108543109A (en) * | 2018-03-13 | 2018-09-18 | 淮阴工学院 | It is low to grind dual antibacterial titanium-based nano composite material bone implant and its manufacturing process |
| CN108707843A (en) * | 2018-06-14 | 2018-10-26 | 余姚市菲特塑料有限公司 | A kind of preparation method of high-density iron-base powdered metal parts |
-
2019
- 2019-04-22 CN CN201910323499.2A patent/CN110039041A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4322458A (en) * | 1977-08-18 | 1982-03-30 | Motoren-Und Turbinen Union | Molded ceramic member, particularly of silicon ceramic, and method for the manufacture thereof |
| JP2004292894A (en) * | 2003-03-27 | 2004-10-21 | Mitsubishi Materials Corp | Silver clay for forming porous sintered compact |
| CN101230438A (en) * | 2007-01-22 | 2008-07-30 | 宝山钢铁股份有限公司 | Austenitic antibiotic stainless steel and method for manufacturing same |
| CN104379496A (en) * | 2011-10-05 | 2015-02-25 | 得克萨斯A&M大学*** | Antibacterial metallic nanofoam and related methods |
| CN102534410A (en) * | 2012-02-24 | 2012-07-04 | 宝山钢铁股份有限公司 | Silver-containing austenitic antimicrobial stainless steel and manufacturing method thereof |
| CN103667610A (en) * | 2012-09-06 | 2014-03-26 | 无锡新大中薄板有限公司 | Heat treatment process of antimicrobial martensitic stainless steel |
| CN105921755A (en) * | 2016-06-22 | 2016-09-07 | 依波精品（深圳）有限公司 | High-nitrogen nickel-free antibacterial stainless steel watch case and manufacturing method thereof |
| CN108543109A (en) * | 2018-03-13 | 2018-09-18 | 淮阴工学院 | It is low to grind dual antibacterial titanium-based nano composite material bone implant and its manufacturing process |
| CN108707843A (en) * | 2018-06-14 | 2018-10-26 | 余姚市菲特塑料有限公司 | A kind of preparation method of high-density iron-base powdered metal parts |
Non-Patent Citations (1)
| Title |
|---|
| 朱敏: "《工程材料》", 28 February 2018 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523267A (en) * | 2020-04-21 | 2021-10-22 | 香港大学 | Novel antibacterial composite powder, stainless steel, preparation method and application thereof |
| CN114178534A (en) * | 2020-08-25 | 2022-03-15 | 香港大学 | Antibacterial stainless steel powder and preparation method and application thereof |
| CN114178534B (en) * | 2020-08-25 | 2023-12-12 | 香港大学 | Antibacterial stainless steel powder and preparation method and application thereof |
| CN112589093A (en) * | 2020-12-15 | 2021-04-02 | 深圳艾利佳材料科技有限公司 | Nano-silver antibacterial agent, preparation method and preparation method of antibacterial stainless steel |
| CN112589093B (en) * | 2020-12-15 | 2022-05-27 | 深圳艾利佳材料科技有限公司 | Nano-silver antibacterial agent, preparation method and preparation method of antibacterial stainless steel |
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Application publication date: 20190723 |