CN100410412C - Antibacterial austenitic stainless steel - Google Patents
Antibacterial austenitic stainless steel Download PDFInfo
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- CN100410412C CN100410412C CNB2005100132389A CN200510013238A CN100410412C CN 100410412 C CN100410412 C CN 100410412C CN B2005100132389 A CNB2005100132389 A CN B2005100132389A CN 200510013238 A CN200510013238 A CN 200510013238A CN 100410412 C CN100410412 C CN 100410412C
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- 230000000844 anti-bacterial effect Effects 0.000 title abstract description 12
- 229910000963 austenitic stainless steel Inorganic materials 0.000 title abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 25
- 239000010935 stainless steel Substances 0.000 claims abstract description 21
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 8
- 230000000845 anti-microbial effect Effects 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 18
- 239000010949 copper Substances 0.000 abstract description 17
- 229910052709 silver Inorganic materials 0.000 abstract description 16
- 239000004332 silver Substances 0.000 abstract description 16
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 13
- 239000011651 chromium Substances 0.000 abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052802 copper Inorganic materials 0.000 abstract description 11
- 238000005260 corrosion Methods 0.000 abstract description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052804 chromium Inorganic materials 0.000 abstract description 9
- 229910052759 nickel Inorganic materials 0.000 abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 239000010955 niobium Substances 0.000 abstract description 4
- 239000011572 manganese Substances 0.000 abstract description 3
- 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 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 229910052758 niobium Inorganic materials 0.000 abstract description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000969 carrier Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 230000001954 sterilising effect Effects 0.000 description 20
- 238000004659 sterilization and disinfection Methods 0.000 description 14
- 238000012360 testing method Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 6
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- -1 silver ions Chemical class 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005554 pickling Methods 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000004087 circulation Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000010963 304 stainless steel Substances 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 230000002070 germicidal effect Effects 0.000 description 2
- 230000000968 intestinal effect 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
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to antibacterial austenitic stainless steel, more specifically to antibacterial stainless steel with nickel saving and chromium saving, which is prepared from chemical compositions having the weight percentage (wt%) range: 0.03 to 0.15 of C, 11 to 15 of Cr, 1.0 to 3.5 of Ni, 7.0 to 15.0 of Mn, 0.06 to 0.3 of N, 1.0 to 3.0 of Cu, 0.01 to 0.1 of Ag, 0 to 0.10 of Nb, at most 0.02 of S, at most 0.03 of P, 0.1 to 1 of Si and Fe as the rest. The present invention adopts copper as carriers, and makes silver penetrate through passive films, and the antibacterial properties can be obviously improved by matching the silver and the copper; simultaneously, nickel and chromium can be saved by that the antibacterial austenitic stainless steel is added with elements, such as manganese, nitrogen, carbon and niobium to ensure that the antibacterial austenitic stainless steel has enough corrosion resistance and austenite structures. The present invention has the advantages of low cost, strong antibacterial property, reliable corrosion resistance and easy production, and can be used for manufacturing water supply pipe systems, kitchen utensils, medical apparatus, construction electric appliances, etc.
Description
Technical field
The present invention relates to stainless manufacturing, particularly a kind of austenite antimicrobial stainless steel, the joint nickel joint chromium anti-bacteria stainless steel of more specifically saying so, this stainless-steel environment-friendly sterilization, cheap, be fit to make feedpiping, kitchen harness, medical facilities, building electric apparatus etc.
Technical background
Environment protection is the needs of social sustainable development, and hygiene and health are themes that human society is concerned about.Japanese MRS infected and China discovery SARS in 2003 in 1996, and the vibrations of the well known whole world more cause the attention of people to the health sterilization.Flat 8-49085 of patent JPA and ZL200410027063.2 propose the metal level at the rich silver of stainless steel surface magnetron sputtering or rich copper or rich titanium; The flat 8-156175 of JPA is coated antimicrobial silver pigment on steel plate.But this coating comes off when rolling and scouring easily, and surface working raises the cost in addition.For address the above problem ZL02144663.0, ZL200310112804.2, the flat 8-104952 of JPA, the flat 8-104953 of JPA, the flat 9-170053 of JPA directly adds copper in austenitic stainless steel, Martensite Stainless Steel, the ferritic stainless steel.Because silver ions is bigger 100 times than cupric ion sterilization functions, so patent JP99800249.6 adds Ag in stainless steel, consider that the passivation for stainless steel layer stops that Ag is dissolved in conveying liquid, can't bring into play its germicidal action, so add AgO and V simultaneously, in order to mediation passive film performance germicidal action.But consumption too much causes the material solidity to corrosion to descend, and reality all is difficult to control for adding what and globule size.
In addition, present practical stainless steel also needs to save nickel joint chromium, for example finalize the design steel UNS20100, UNS20103, UNS20153, UNS20161, UNS20200, UNS20400 and patent ZL93106802.9, ZL95111105.1, ZL01111434.7 etc. all propose the measure of various joint nickel joint chromium, but do not have the environmental protection sterilization effect.
Summary of the invention
The purpose of this invention is to provide a kind of austenite antimicrobial stainless steel, can overcome the deficiency of prior art, joint nickel joint chromium again can effective sterilizing.The present invention is with low cost, economical and practical.
(wt%) is composed as follows for the weight percent of austenite antimicrobial stainless steel of the present invention:
C:0.03-0.15, Cr:11-15, Ni:1.0-3.5, Mn:7.0-15.0, N:0.06-0.3, Cu:1.0-3.0, Ag:0.01-0.1, Nb:0.01-0.10, S≤0.02, P≤0.03, Si:0.1-1, all the other are Fe.
Adopt manganese, nitrogen, carbon to replace high price nickel in the alloy of the present invention, utilize trace niobium fixed carbon, prevent the poor chromium of crystal boundary, in the hope of under low chromium and high-carbon condition, guaranteeing preservative effect.This steel grade carbon content a wider range is fit to smelt with the various type of furnaces of air induction furnace, electric furnace, AOD and VOD.
The present invention selects vacuum induction furnace or electric furnace-AOD duplex smelting stainless steel for use, the casting steel billet, behind the forging rolling in 1150 ℃ of solid solution shrends, 400-700 ℃ ageing treatment, acid pickling and rust removing, cold rolling, annealing, pickling, glazed surface.
Composition design of the present invention adds silver and copper simultaneously, obtains remarkable sterilising effect, but certain condition must be arranged, could sterilization when promptly the two is in ionic state.It is to be noted silver ions than big two orders of magnitude of cupric ion sterilization ability, but as shown in Figure 1,, stop and shield silver atoms 5 to be dissolved in the conveying liquid 1,, also can't represent its sterilization ability even if silver has very big sterilization potentiality because there is passive film 3 in stainless steel surface.If add copper simultaneously in stainless steel, then the nanometer ε that separates out by timeliness-Cu penetrates passive film and dissolves in and carries in the liquid, forms the activated cupric ion.And silver is partially soluble in copper, and be carried this moment together passes passive film, and carries out the transition to conveying liquid formation silver ions.Though the sterilization of ε-Cu self energy, main effect is the carrier that send defeated silver as.Under silver ions and cupric ion acting in conjunction, give full play to sterilizing function.
The present invention adopts copper as carrier, makes silver pass passive film, and the silver-bearing copper cooperation significantly improves antibacterial ability; Utilize simultaneously to add manganese, nitrogen, carbon, niobium element joint nickel joint chromium, to guarantee enough solidity to corrosions and to have austenite structure.The present invention can be used to make feedpiping, kitchen harness, medical facilities, building electric apparatus etc.
Description of drawings
Fig. 1. argentiferous cupric and argentiferous do not have the contrast of copper in the alloy.
Embodiment
Embodiment
Fig. 1. argentiferous cupric and argentiferous do not have the contrast of copper in the alloy.1. conveying liquid, 2. bacterium, 3. passive film, 4. stainless steel, 5. silver atoms, 6. cupric ion, 7. silver ions, 8. surperficial ε-Cu 9. dissolves in silver, 10. inner ε-Cu.
With vacuum induction furnace or electric furnace-AOD duplex smelting stainless steel, the casting steel billet, behind the forging rolling in 1150 ℃ of solid solution shrends, 400-700 ℃ ageing treatment, acid pickling and rust removing, be cold-rolled to 1mm, annealing, pickling, glazed surface.
Evaluate the circulation of stainless solidity to corrosion by following three steps: (1) was in 35 ℃ of spray 5%NaCl aqueous solution, 0.5 hour; (2) under 60 ℃ and 40% humidity, store 1 hour; (3) under 40 ℃ and 95% wet condition, store 1 hour.Three phases is a circulation, through 30 circulations, measures the area ratio of test piece corrosion.
The evaluation antibacterial tests according to pharmacopeia CMCC (B) 44102 and CMCC (B) 26003 antibacterial tests rules, is measured the contrast sterilization rate of intestinal bacteria and streptococcus aureus.The stainless steel plate of inventing after the antimicrobial treatment is processed into 4 * 4cm sample, opposes than test with 304 stainless steel test pieces.Program is as follows:
(1) with raw spirit flushing anti-bacteria stainless steel test piece and 304 stainless steel test piece, in 120 ℃ of following autoclavings 30 minutes;
(2) bacterial classification dilutes with damping fluid (PBS) (0.03mol/l, PH=7.2, AMSP 2.83g, potassium primary phosphate 1.36g, distilled water 1000ml), and concentration is 10
5Standard bacterium liquid;
(3) bacterium liquid 0.5ml evenly drips to the test piece surface that handle (1), puts into 35 ℃, the incubator of humidity 95%, keeps 24 hours;
(4) measure the bacterium number.And the calculating sterilizing rate, the sterilizing rate calculation formula is:
Sterilizing rate (%)=(relatively test piece aerobic plate count-antibiotic test piece aerobic plate count)/relatively sheet aerobic plate count * 100
Intestinal bacteria sterilization rate 99.5%, streptococcus aureus sterilization rate 99.96% is good.
Experimental result is as shown in table 1, lists 29 kinds of stainless steels, and wherein 1-19 belongs to composition range of the present invention, and 20-29 is a Comparative Examples.
The experimental result of table 1. embodiment (1-19) and Comparative Examples (20-29)
| Element | C | Si | Mn | P | S | Cr | Ni | N | Ag | Cu | Nb | Anti-corrosion | Sterilization | Cost | Processing |
| 1 | 0.05 | 0.3 | 14 | 0.02 | 0.006 | 13 | 3.5 | 0.20 | 0.05 | 1.5 | 0.03 | ○ | ○ | ○ | ○ |
| 2 | 0.04 | 0.4 | 15 | 0.02 | 0.008 | 14 | 3.2 | 0.21 | 0.01 | 2.0 | 0.03 | ○ | ○ | ○ | ○ |
| 3 | 0.03 | 0.5 | 15 | 0.02 | 0.010 | 14 | 3.4 | 0.10 | 0.02 | 1.0 | 0.03 | ○ | ○ | ○ | ○ |
| 4 | 0.09 | 0.3 | 10 | 0.03 | 0.020 | 13 | 3.0 | 0.07 | 0.01 | 3.0 | 0.03 | ○ | ○ | ○ | ○ |
| 5 | 0.08 | 0.5 | 11 | 0.02 | 0.007 | 12 | 2.8 | 0.08 | 0.02 | 2.5 | 0.04 | ○ | ○ | ○ | ○ |
| 6 | 0.15 | 0.3 | 15 | 0.02 | 0.009 | 15 | 1.0 | 0.30 | 0.02 | 2.0 | 0.05 | ○ | ○ | ○ | ○ |
| 7 | 0.13 | 0.4 | 7 | 0.03 | 0.008 | 11 | 1.8 | 0.09 | 0.03 | 2.7 | 0.05 | ○ | ○ | ○ | ○ |
| 8 | 0.08 | 0.5 | 15 | 0.02 | 0.009 | 12 | 1.6 | 0.08 | 0.02 | 2.3 | 0.03 | ○ | ○ | ○ | ○ |
| 9 | 0.08 | 0.4 | 14 | 0.03 | 0.007 | 12 | 1.6 | 0.20 | 0.01 | 3.0 | 0.04 | ○ | ○ | ○ | ○ |
| 10 | 0.08 | 0.4 | 9 | 0.02 | 0.006 | 11 | 1.7 | 0.30 | 0.02 | 1.5 | 0.04 | ○ | ○ | ○ | ○ |
| 11 | 0.10 | 0.4 | 13 | 0.03 | 0.006 | 11 | 1.7 | 0.16 | 0.03 | 1.7 | 0.05 | ○ | ○ | ○ | ○ |
| 12 | 0.14 | 0.4 | 10 | 0.02 | 0.006 | 15 | 1.0 | 0.30 | 0.05 | 2.1 | 0.05 | ○ | ○ | ○ | ○ |
| 13 | 0.13 | 0.4 | 14 | 0.03 | 0.003 | 14 | 1.2 | 0.20 | 0.06 | 1.8 | 0.05 | ○ | ○ | ○ | ○ |
| 14 | 0.15 | 0.5 | 15 | 0.02 | 0.008 | 11 | 1.2 | 0.15 | 0.07 | 1.7 | 0.04 | ○ | ○ | ○ | ○ |
| 15 | 0.12 | 0.4 | 10 | 0.03 | 0.007 | 11 | 1.4 | 0.08 | 0.05 | 1.9 | 0.04 | ○ | ○ | ○ | ○ |
| 16 | 0.13 | 0.4 | 7 | 0.02 | 0.007 | 12 | 1.3 | 0.10 | 0.02 | 2.0 | 0.05 | ○ | ○ | ○ | ○ |
| 17 | 0.04 | 0.4 | 0.15 | 0.03 | 0.006 | 13 | 3.0 | 0.20 | 0.03 | 2.0 | 0.03 | ○ | ○ | ○ | ○ |
| 18 | 0.03 | 0.3 | 0.13 | 0.03 | 0.008 | 14 | 3.5 | 0.25 | 0.02 | 2.0 | 0.01 | ○ | ○ | ○ | ○ |
| 19 | 0.05 | 0.8 | 0.13 | 0.01 | 0.020 | 14 | 1.2 | 0.24 | 0.03 | 2.0 | 0.01 | ○ | ○ | ○ | ○ |
| 20 | 0.10 | 0.3 | 0.09 | 0.02 | 0.03 | 13 | 8 | 0.06 | 0.02 | 1.0 | 0.03 | ○ | × | × | × |
| 21 | 0.09 | 0.3 | 0.10 | 0.01 | 0.008 | 18 | 8 | 0.08 | 0.01 | 1.5 | 0.03 | ○ | ○ | × | ○ |
| 22 | 0.09 | 0.3 | 0.10 | 0.01 | 0.007 | 11 | 1.3 | 0.10 | 0.06 | 1.7 | 0.15 | ○ | ○ | × | ○ |
| 23 | 0.01 | 0.4 | 0.15 | 0.01 | 0.009 | 9 | 2.0 | 0.08 | 0.06 | 1.2 | 0.05 | ○ | × | ○ | ○ |
| 24 | 0.08 | 0.4 | 0.10 | 0.01 | 0.008 | 10 | 2.0 | 0.20 | 0.05 | 1.3 | 0.05 | ○ | × | ○ | ○ |
| 25 | 0.08 | 0.5 | 0.11 | 0.01 | 0.001 | 12 | 2.0 | 0.25 | 0 | 2.0 | 0.05 | × | ○ | ○ | ○ |
| 26 | 0.15 | 0.6 | 0.8 | 0.02 | 0.006 | 13 | 2.3 | 0.30 | 0.02 | 0 | 0.04 | × | ○ | ○ | ○ |
| 27 | 0.08 | 0.7 | 0.13 | 0.02 | 0.03 | 13 | 2.3 | 0.20 | 0.02 | 1.6 | 0.04 | ○ | ○ | ○ | × |
| 28 | 0.02 | 2.0 | 0.12 | 0.01 | 0.007 | 14 | 2.4 | 0.15 | 0.03 | 1.8 | 0.05 | ○ | ○ | ○ | × |
| 29 | 0.06 | 0.3 | 0.11 | 0.01 | 0.008 | 15 | 2.5 | 0.20 | 0.03 | 2.0 | 0.05 | ○ | ○ | × | ○ |
Annotate: anti-corrosion evaluation means the corrosive power of anti-NaCl in the table, anti-corrosion 304 stainless pictures " zero ", the picture " * " of anti-corrosion difference of approaching; The sterilization ability meets the picture " zero " of required standard in above-mentioned (4), the picture " * " that is lower than; Cost is lower than the picture " zero " of 301 stainless steels 75%, is higher than 75% picture " * "; Processing refers to Drawing abillity, and processing comprises the picture " zero " that cold-drawn, mechanical workout and weldability are close with 304 stainless steels, all the other pictures " * ".
Claims (2)
1. austenite antimicrobial stainless steel is characterized in that its weight percent is composed as follows:
C:0.03-0.15, Cr:11-15, Ni:1.0-3.5, Mn:7.0-15.0, N:0.06-0.3, Cu:1.0-3.0, Ag:0.01-0.1, Nb:0.01-0.10, S≤0.02, P≤0.03, Si:0.1-1, all the other are Fe.
2. according to the described austenite antimicrobial stainless steel of claim 1, it is characterized in that:
Ag：0.01-0.07。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100447282C (en) * | 2005-10-14 | 2008-12-31 | 辽宁国瑞商贸有限公司 | Ferrite stainless steel having excellent antibacterial characteristics |
| CN100547102C (en) * | 2007-04-20 | 2009-10-07 | 宝山钢铁股份有限公司 | A kind of biphase antibiotic stainless steel and manufacture method thereof |
| CN105986196A (en) * | 2015-03-05 | 2016-10-05 | 中国科学院金属研究所 | Microbiological corrosion resisting duplex stainless steel |
| CN106367714A (en) | 2015-07-24 | 2017-02-01 | 先健科技(深圳)有限公司 | Iron-based absorbent implanting medical instrument, prefabricated tube, and production methods of medical instrument and prefabricated tube |
| CN105779902A (en) * | 2016-03-17 | 2016-07-20 | 福州大学 | Silver-containing anti-bacteria duplex stainless steel and preparing method thereof |
| CN113278892A (en) * | 2021-05-25 | 2021-08-20 | 东莞市亿丰钟表有限公司 | High-chromium high-hardness corrosion-resistant alloy steel and preparation method thereof |
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| CN1310246A (en) * | 1995-12-15 | 2001-08-29 | 日新制钢株式会社 | Antibiotic parts and its producing process |
| CN1401808A (en) * | 2002-09-13 | 2003-03-12 | 张体宝 | Antibacterial austenite stainless steel |
-
2005
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Patent Citations (5)
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|---|---|---|---|---|
| JPH09111380A (en) * | 1995-10-18 | 1997-04-28 | Nisshin Steel Co Ltd | Ag-cu-zn alloy excellent in antibacterial and antimold property |
| CN1310246A (en) * | 1995-12-15 | 2001-08-29 | 日新制钢株式会社 | Antibiotic parts and its producing process |
| JPH10259457A (en) * | 1997-03-19 | 1998-09-29 | Nisshin Steel Co Ltd | Austenitic antibacterial stainless steel containing argentum and cuprum |
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| CN1664154A (en) | 2005-09-07 |
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