CN101289726A - Biphase antibiotic stainless steel and method for making same - Google Patents
Biphase antibiotic stainless steel and method for making same Download PDFInfo
- Publication number
- CN101289726A CN101289726A CNA2007100397463A CN200710039746A CN101289726A CN 101289726 A CN101289726 A CN 101289726A CN A2007100397463 A CNA2007100397463 A CN A2007100397463A CN 200710039746 A CN200710039746 A CN 200710039746A CN 101289726 A CN101289726 A CN 101289726A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- percent
- biphase
- biphase antibiotic
- master alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention provides duplex antibacterial stainless steel and a method for making the same. The duplex antibacterial stainless steel is made by adding Ag-Cu binary master alloy to common duplex stainless steel and comprises the following chemical composition in percentage by weight: less than or equal to 0.08 percent of C, less than or equal to 3.0 percent of Si, less than or equal to 2.0 percent of Mn, less than or equal to 0.04 percent of P, less than or equal to 0.03 percent of S, 3.0-10.0 percent of Ni, 17.0-27.0 percent of Cr, less than or equal to 5.0 percent of Mo, less than or equal to 5.0 percent of W, 0.10-0.35 percent of N, 0.10-3.0 percent of the Ag-Cu binary master alloy, and the balance being Fe and inevitable impurities. The duplex antibacterial stainless steel maintains the prior excellent mechanical property and corrosion resistant performance, has good antibacterial property, can be processed into products in various shapes, and is applied to the food and pharmaceutical industries and other fields.
Description
Technical field
The present invention relates to duplex stainless steel, specifically, relate to a kind of biphase antibiotic stainless steel and manufacture method thereof.
Background technology
So-called anti-bacteria stainless steel, in stainless steel, add an amount of element with antibacterial effect (as alloying elements such as copper, silver, zinc) exactly, the steel that make final production go out have good antimicrobial property, and the generation of its anti-microbial property mainly is the anti-microbial effect that has utilized alloying elements such as copper, silver, zinc.Anti-bacteria stainless steel had both had the advantage of stainless steel itself, had good antimicrobial property again, had been popular since putting on market.The ferrite type anti-bacteria stainless steel is mainly used in washing machine, tableware, kitchen utensils etc.; The Austenitic anti-bacteria stainless steel is mainly used in aspects such as kitchen, household electrical appliances, medical apparatus; The steel wire industry focuses on medicine equipment martensite antimicrobial stainless steel silk, and the exploitation of ferrite antibacterial stainless steel filament is used in knitmesh with austenite antimicrobial stainless steel silk and cleaning ball.In a word, the broad spectrum antibacterial performance of the existing excellence of anti-bacteria stainless steel has good processibility and solidity to corrosion again, and is the novel antibacterial material that is better than other antimicrobial products, has broad application prospects.The nineties in 20th century, a Japan day new system steel company at first successfully developed the ferritic series anti-bacteria stainless steel with good processibility and germ resistance, had developed martensite antimicrobial stainless steel and austenite antimicrobial stainless steel in succession again.It is the kind of anti-bacteria stainless steel that Kawasaki, Japan Iron And Steel Company has expanded silver recently again, can not only produce ferrite type and add silver-colored anti-bacteria stainless steel, simultaneously also can produce Austenitic and add silver-colored anti-bacteria stainless steel (304 type), and in the multinomial patent that improved aspect applications such as stainless germ resistance, solidity to corrosion, slip resistance, machinability, mechanical property and workability, plasticity, wear resistance.It is reported that states such as Korea S, the U.S. and Canada are also at active development anti-bacteria stainless steel material.
Anti-bacteria stainless steel patent in the past mostly concentrates on the exploitation of austenite, ferrite and the single-phase anti-bacteria stainless steel of martensite, and does not also have so far about the invention of biphase antibiotic stainless steel.As: the open communique CN1789471A of Chinese patent discloses a kind of austenite antimicrobial stainless steel, although wherein added three kinds of antiseptic elements Cu, Ag and Zn, this stainless steel also belongs to single-phase stainless steel.Chinese patent open communique CN1272889A, CN1256716A and CN1664154 are disclosed all to be argentiferous single-phase anti-bacteria stainless steel; And Chinese patent open communique CN1504588, CN1498981 and CN1401808 disclosed all be copper bearing single-phase anti-bacteria stainless steel.
Because duplex stainless steel is different from the stainless steel of other kinds, can not between middle warm area, (about 600～850 ℃) stop for a long time, otherwise can form harmful phase, have a strong impact on the use properties of material, and the cupric anti-bacteria stainless steel is the antibiotic ageing treatment that must carry out the long period in this temperature range, so the cupric biphase antibiotic stainless steel is infeasible.Although the silver-containing antibacterial stainless steel does not need special ageing treatment during fabrication, but its solubleness in stainless steel is very little, poly-partially in steel easily, the anti-microbial property of steel is obviously descended, and the utilization ratio of influence silver, increase cost, so the argentiferous biphase antibiotic stainless steel can not reach antibiotic requirement.
In view of above-mentioned, the present inventor utilizes the bigger characteristic of the solubleness of Ag-Cu alloy in stainless steel, Ag and two kinds of element meltings by a certain percentage of Cu are made Ag-Cu binary master alloy, again it is joined in the stainless raw material as a kind of batching and smelt, obtain biphase antibiotic stainless steel of the present invention through operations such as rolling, polishings.This biphase antibiotic stainless steel has kept original excellent mechanical property, corrosion resisting property, and has good antibacterial property, can be processed into the product of different shape, is applied to fields such as food and pharmaceutical industry.
One object of the present invention is to provide a kind of biphase antibiotic stainless steel.
Another object of the present invention is to provide the manufacture method of described biphase antibiotic stainless steel.
Summary of the invention
First aspect of the present invention provides a kind of biphase antibiotic stainless steel, and described biphase antibiotic stainless steel adds Ag-Cu binary master alloy and makes in common duplex stainless steel.
The chemical ingredients of described biphase antibiotic stainless steel comprises in weight ratio: C≤0.08%, Si≤3.0%, Mn≤2.0%, P≤0.04%, S≤0.03%, Ni:3.0～10.0%, Cr:17.0～27.0%, Mo≤5.0%, W≤5.0%, N:0.10～0.35%, Ag-Cu binary master alloy: 0.10～3.0%, and surplus is Fe and inevitable impurity.
Wherein, the weight percent of described Ag-Cu binary master alloy consists of: Ag:1.0～50%, surplus are Cu.
Below, the chemical ingredients of biphase antibiotic stainless steel of the present invention is done as being described in detail.
C: strong austenite former, but content is too much difficult, surpasses at 0.08% o'clock and can make steel strength too high, also can reduce solidity to corrosion, is preferably in below 0.08%.
Si: can improve the solidity to corrosion of steel, accelerate, influence the use properties of steel, should be controlled at below 3% but surpass at 3% o'clock and can make harmful phase speed of separating out such as σ.
Mn: manganese can play stable austenite and improve the thermoplastic effect of steel, also can save nickel, reduce cost, but its content can promote harmful formation mutually such as σ above 2.0% o'clock, and also can reduce the solidity to corrosion of steel, content should be controlled at below 2.0%.
P, S: for to steel heat plasticity and corrosion proof consideration, these two constituent contents will hang down as far as possible, should control P≤0.04%, S≤0.03%.
Cr: improve the corrosion proof important element of steel, be lower than at 17% o'clock, solidity to corrosion is relatively poor, can not reach service requirements, but surpass the intermetallic compound speed of separating out is accelerated at 27% o'clock, preferably is controlled at 17～27%.
N: can improve the solidity to corrosion of steel, also can save nickel, content should be controlled at more than 0.10%, requires less than 0.35%, is in order to be easy to smelt control.
Mo, W: can improve the solidity to corrosion of steel, but should not add, surpass the formation that can strengthen intermetallic compound at 5.0% o'clock, preferably be controlled at below 5.0%.
Ni: as the element that forms and enlarge the austenitic area consumingly, content was difficult for guaranteeing austenite content less than 3.0% o'clock, but the price of nickel is higher, should be controlled at below 10.0%.
The Ag-Cu alloy: silver and copper all have germ resistance, and copper also can improve solidity to corrosion, wear resistance and the cold machine-shaping of steel, also can save nickel.When Ag-Cu alloy content germ resistance less than 0.1% time undesirable, along with the increase germ resistance of its content improves gradually, but because duplex stainless steel thermoplasticity is relatively poor, the Ag-Cu alloy content was above 3.0% o'clock, can reduce the thermoplasticity of steel, and silver more also can produce detrimentally affect to thermoplasticity, so the Ag-Cu alloy should be controlled at below 3.0%.
In addition, silver content was considered the germ resistance needs less than 1.0% o'clock in the Ag-Cu alloy, will add more Ag-Cu alloy when stainless steel smelting, had so just added more copper, and the thermoplasticity of steel is descended.Otherwise, when silver content in the Ag-Cu alloy greater than 50% the time, the solubleness of Ag-Cu alloy in duplex stainless steel is lower, can influence the germ resistance of steel again.Therefore in the Ag-Cu alloy, the content of silver should be controlled at 1.0～50%.
Second aspect of the present invention provides a kind of manufacture method of biphase antibiotic stainless steel, this method comprises smelting, casting, rolling, polishing, wherein before smelting earlier with Ag and two kinds of elements of Cu in proportion melting make master alloy, again will described master alloy as smelting in a kind of raw material that adds biphase antibiotic stainless steel of preparing burden.
Wherein said smelting can be adopted vacuum induction furnace, electric furnace-AOD duplex is smelted or electric furnace-AOD-VOD smelts.
Described rolling the employing after the hot rolling in 950～1150 ℃ of solution treatment, pickling removes the oxide compound top layer, carry out again cold rolling, in 950～1150 ℃ of annealing, pickling.
The present invention selects for use vacuum induction furnace, electric furnace-AOD duplex to smelt or electric furnace-AOD-VOD smelting stainless steel, die casting or continuous casting steel billet, solution treatment+pickling after the hot rolling, polishing obtains hot-rolled product, also can be made into cold-rolled products, its technology is: with the solution treatment of hot rolling material, pickling removes the oxide compound top layer, and is cold rolling, through annealing water-cooled, polishing.One of most critical step was earlier Ag and two kinds of element meltings by a certain percentage of Cu to be made master alloy before smelting in the manufacture method of biphase antibiotic stainless steel of the present invention, it was joined as a kind of batching in the raw material of biphase antibiotic stainless steel to smelt again.
Because the solubleness of this master alloy in duplex stainless steel is bigger, agitation when smelting is uniformly distributed in the steel antiseptic elements, so that steel has had anti-microbial property, and property retention previous levels such as the mechanics of steel, anti-corrosion and processing simultaneously.
Beneficial effect of the present invention is: by content and the distribution situation of adjustment control Ag in alloy of smelting technology, and then make this stainless steel have good antimicrobial property.Biphase antibiotic stainless steel of the present invention has kept original steel grade excellent mechanical property and corrosion resistance, and has good antibacterial property, can be processed into the product of different shape, is applied to fields such as food and pharmaceutical industry.
Description of drawings
Fig. 1 is the TEM photo of the biphase antibiotic stainless steel of the embodiment of the invention 1, and wherein small particles is the Ag-Cu alloy.
Fig. 2 is the TEM photo of the duplex stainless steel of Comparative Examples 1 of the present invention.
Embodiment
Below for a more detailed description to the present invention in conjunction with the accompanying drawings with embodiment.These embodiment only are the descriptions to best mode for carrying out the invention, scope of the present invention are not had any restriction.
Embodiment 1-3:
Ag and two kinds of elements of Cu are made master alloy in the ratio melting shown in the table 1, join it in raw material of biphase antibiotic stainless steel as a kind of batching again, smelt or electric furnace-AOD-VOD smelting stainless steel with vacuum induction furnace, electric furnace-AOD again, the casting steel billet is hot-rolled down to 4mm, 950～1150 ℃ of solid solution water-cooleds, pickling removes the oxide compound top layer, be cold-rolled to 1.5mm again, through 950～1150 ℃ of annealing water-cooleds, polishing.
The chemical ingredients of the duplex stainless steel of the biphase antibiotic stainless steel of embodiment of the invention 1-3 and Comparative Examples 1-2 sees Table 1, and wherein Comparative Examples 1 is the not argentiferous same model duplex stainless steel of embodiment 1-2, and Comparative Examples 2 is not argentiferous same model duplex stainless steels of embodiment 3.
The chemical ingredients (wt%) of the biphase antibiotic stainless steel of table 1 embodiment 1-3 and the duplex stainless steel of Comparative Examples 1-2
| Sequence number | Standard brand | C | Si | Mn | P | S | Cr | Ni | Mo | W | N | Ag-Cu |
| Embodiment 1 | 0.01 | 0.74 | 1.91 | 0.015 | 0.004 | 23.80 | 4.25 | - | - | 0.11 | (0.1 argentiferous 50%) | |
| Embodiment 2 | 0.02 | 0.56 | 1.54 | 0.021 | 0.004 | 22.21 | 4.82 | 2.53 | 0.18 | (1.0 argentiferous 5%) | ||
| Embodiment 3 | 0.025 | 0.55 | 0.89 | 0.016 | 0.004 | 25.23 | 6.84 | 3.51 | 0.86 | 0.28 | (3.0 argentiferous 1%) | |
| Comparative Examples 1 | Industry 2205 | ≤0.03 | ＜1.0 | ＜2.0 | ＜0.03 | ＜0.02 | 22.0～ 23.0 | 4.5～ 6.5 | 3.0～ 3.5 | - | 0.24～ 0.32 | - |
| Comparative Examples 2 | Industry 2507 | ≤0.03 | ＜0.8 | ＜1.2 | ＜ 0.035 | ＜0.02 | 24.0～ 26.0 | 6.0～ 8.0 | 3.0～ 5.0 | - | 0.28～ 0.50 | - |
Test example 1:
The biphase antibiotic stainless steel of embodiment of the invention 1-3 and the duplex stainless steel of Comparative Examples 1-2 are carried out Mechanics Performance Testing, and test result sees Table 2.
Test example 2:
By JIS Z2801-2000 " antibiotic fabricated product---anti-microbial property test method and antibacterial effect " standard the biphase antibiotic stainless steel of embodiment of the invention 1-3 and the duplex stainless steel of Comparative Examples 1-2 are carried out the anti-microbial property test, its test result sees Table 2, and main testing sequence is as follows:
1) test strain;
Enterobacteria (Escherichia coli SIM B282) too
Streptococcus aureus (Staphylococcus aureus SIM B283)
2) detection method:
(1) sample is cut into the size (in triplicate) of 5.0cm * 5.0cm size, washes coupons, in 120 ℃ of high-temperature sterilizations 30 minutes with raw spirit.
(2) sample behind the high-temperature sterilization is put in the aseptic plate, gets about 0.5 milliliter of test organisms drop on sample, guarantee that colony number maintains 10 with transfer pipet
5
(3) plastics film is covered specimen surface, put into aseptic plate then, in 36 ± 1 ℃ of constant incubators, cultivated 24 hours.
(4) calculate the bacterial number that survives by agar cultural method (35 ± 1 ℃, 40～48 hours).
(5) with the duplex stainless steel of the not argentiferous same model of Comparative Examples 1-2 sample in contrast, repeat aforesaid operations.
3) antibiotic rate calculates
Antibiotic rate=[(A-B)/A] * 100%
In the formula: the average viable count of control sample after A-24 hour
Antibiotic sample average viable count after B-24 hour.
The biphase antibiotic stainless steel of table 2 embodiment 1-3 and the duplex stainless steel of Comparative Examples 1-2
Mechanical property and anti-microbial property are relatively
| Sequence number | Antibiotic rate, % | Yield strength, MPa | Tensile strength, MPa | Unit elongation, % |
| |
＞99 | 515 | 663 | 34 |
| Embodiment 2 | ＞99 | 524 | 678 | 36 |
| Embodiment 3 | ＞99 | 531 | 683 | 38 |
| Comparative Examples 1 | 0 | About 520 | About 670 | About 35 |
| Comparative Examples 2 | 0 | About 540 | About 690 | About 35 |
As can be seen from Table 2, biphase antibiotic stainless steel of the present invention is compared with the duplex stainless steel of argentiferous same model not, has not only kept the good mechanical property of original steel grade, and antibiotic rate is all more than 99%, and anti-microbial property is good.
Test example 3:
(national standard: GB/T 17897-1999) biphase antibiotic stainless steel of embodiment of the invention 1-3 and the duplex stainless steel of Comparative Examples 1-2 are carried out the corrosion resistance nature test, test result sees Table 3 according to stainless steel iron trichloride pitting corrosion test method.
The anti-pitting attack performance of the biphase antibiotic stainless steel of table 3 embodiment 1-3 and the duplex stainless steel of Comparative Examples 1-2 relatively
| Sequence number | 6％FeCl
3, 35 ℃, 8h, corrosion rate, g/m
2· |
| Embodiment | |
| 1 | 1.62 |
| Embodiment 2 | 1.43 |
| Embodiment 3 | 0.77 |
| Comparative Examples 1 | 1.38 |
| Comparative Examples 2 | 0.79 |
The biphase antibiotic stainless steel of embodiment 1 and embodiment 2 is compared with the anti-pitting attack performance of the not argentiferous same model duplex stainless steel of Comparative Examples 1, embodiment 3 is compared with the anti-pitting attack performance of Comparative Examples 2, solidity to corrosion is suitable, and basic indifference has kept the solidity to corrosion of original steel grade.
In a word, the broad spectrum antibacterial performance of the existing excellence of biphase antibiotic stainless steel of the present invention has good processibility and solidity to corrosion again, and is the novel antibacterial material that is better than other antimicrobial products, is applied to fields such as food and pharmaceutical industry.
Claims (6)
1, a kind of biphase antibiotic stainless steel is characterized in that, described biphase antibiotic stainless steel adds Ag-Cu binary master alloy and makes in common duplex stainless steel.
2, biphase antibiotic stainless steel according to claim 1, it is characterized in that, the chemical ingredients of described biphase antibiotic stainless steel comprises in weight ratio: C≤0.08%, Si≤3.0%, Mn≤2.0%, P≤0.04%, S≤0.03%, Ni:3.0～10.0%, Cr:17.0～27.0%, Mo≤5.0%, W≤5.0%, N:0.10～0.35%, Ag-Cu binary master alloy: 0.10～3.0%, and surplus is Fe and inevitable impurity.
3, biphase antibiotic stainless steel according to claim 1 and 2, the weight percent of wherein said Ag-Cu binary master alloy consists of: Ag:1.0～50%, surplus are Cu.
4, the manufacture method of the described biphase antibiotic stainless steel of claim 1, this method comprises smelting, casting, rolling, polishing, it is characterized in that, before smelting earlier with Ag and two kinds of elements of Cu in proportion melting make master alloy, again will described master alloy as smelting in a kind of raw material that adds biphase antibiotic stainless steel of preparing burden.
5, the manufacture method of biphase antibiotic stainless steel according to claim 4, wherein said smelting adopt vacuum induction furnace, electric furnace-AOD duplex is smelted or electric furnace-AOD-VOD smelts.
6, the manufacture method of biphase antibiotic stainless steel according to claim 4, in 950～1150 ℃ of solution treatment, pickling removes the oxide compound top layer after the wherein said rolling employing hot rolling, carry out again cold rolling, in 950～1150 ℃ of annealing, pickling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100397463A CN100547102C (en) | 2007-04-20 | 2007-04-20 | A kind of biphase antibiotic stainless steel and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100397463A CN100547102C (en) | 2007-04-20 | 2007-04-20 | A kind of biphase antibiotic stainless steel and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101289726A true CN101289726A (en) | 2008-10-22 |
| CN100547102C CN100547102C (en) | 2009-10-07 |
Family
ID=40034169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100397463A Active CN100547102C (en) | 2007-04-20 | 2007-04-20 | A kind of biphase antibiotic stainless steel and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100547102C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965585A (en) * | 2012-11-01 | 2013-03-13 | 清华大学 | Antibacterial austenitic stainless steel |
| CN103014525A (en) * | 2012-12-10 | 2013-04-03 | 上海大学 | High-silicon double-phase stainless steel and preparation method thereof |
| CN103602914A (en) * | 2013-11-15 | 2014-02-26 | 上海大学兴化特种不锈钢研究院 | Economical high-performance duplex stainless steel with stable structure |
| TWI477614B (en) * | 2013-08-28 | 2015-03-21 | ||
| CN106337105A (en) * | 2016-08-29 | 2017-01-18 | 中国科学院金属研究所 | Heat treatment method for antibacterial double-phase stainless steel material |
| CN106636886A (en) * | 2016-10-21 | 2017-05-10 | 苏州大成电子科技有限公司 | Machining process of stainless steel plate for sightseeing vehicle |
| CN107299205A (en) * | 2017-05-03 | 2017-10-27 | 浙江大学 | It is a kind of to be used to improve the heat treatment method of martensite aged stainless steel mechanical property |
| CN107881413A (en) * | 2017-10-18 | 2018-04-06 | 江苏理工学院 | A kind of antibacterial duplex stainless steel and its processing technology |
| CN109487172A (en) * | 2019-01-14 | 2019-03-19 | 东北大学 | One kind having excellent thermoplastic two phase stainless steel and preparation method thereof |
| JP2020186441A (en) * | 2019-05-14 | 2020-11-19 | 日本製鉄株式会社 | Two-phase stainless steel |
| JP2020186440A (en) * | 2019-05-14 | 2020-11-19 | 日本製鉄株式会社 | Two-phase stainless steel |
| WO2021026778A1 (en) * | 2019-08-13 | 2021-02-18 | 采纳科技股份有限公司 | Stainless steel material capable of improving the rigidity and toughness of injection needle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308477C (en) * | 2003-10-31 | 2007-04-04 | 烨联钢铁股份有限公司 | Rich granule iron series stainless steel with good hot work ability and antibacterial effect |
| CN100410412C (en) * | 2005-03-24 | 2008-08-13 | 刘文西 | Antibacterial austenitic stainless steel |
| 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 |
| CN100516273C (en) * | 2005-12-21 | 2009-07-22 | 上海材料研究所 | Antibacterial austenitic stainless steel and its manufacturing method |
| CN1948535B (en) * | 2006-11-09 | 2010-12-08 | 安徽工业大学 | Rare earth improving antibacterial performance silver containing stainless steel |
-
2007
- 2007-04-20 CN CNB2007100397463A patent/CN100547102C/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965585A (en) * | 2012-11-01 | 2013-03-13 | 清华大学 | Antibacterial austenitic stainless steel |
| CN103014525A (en) * | 2012-12-10 | 2013-04-03 | 上海大学 | High-silicon double-phase stainless steel and preparation method thereof |
| TWI477614B (en) * | 2013-08-28 | 2015-03-21 | ||
| CN103602914A (en) * | 2013-11-15 | 2014-02-26 | 上海大学兴化特种不锈钢研究院 | Economical high-performance duplex stainless steel with stable structure |
| CN106337105B (en) * | 2016-08-29 | 2018-02-16 | 中国科学院金属研究所 | A kind of heat treatment method of antibacterial duplex stainless steel material |
| CN106337105A (en) * | 2016-08-29 | 2017-01-18 | 中国科学院金属研究所 | Heat treatment method for antibacterial double-phase stainless steel material |
| CN106636886A (en) * | 2016-10-21 | 2017-05-10 | 苏州大成电子科技有限公司 | Machining process of stainless steel plate for sightseeing vehicle |
| CN107299205A (en) * | 2017-05-03 | 2017-10-27 | 浙江大学 | It is a kind of to be used to improve the heat treatment method of martensite aged stainless steel mechanical property |
| CN107881413A (en) * | 2017-10-18 | 2018-04-06 | 江苏理工学院 | A kind of antibacterial duplex stainless steel and its processing technology |
| CN109487172A (en) * | 2019-01-14 | 2019-03-19 | 东北大学 | One kind having excellent thermoplastic two phase stainless steel and preparation method thereof |
| JP2020186441A (en) * | 2019-05-14 | 2020-11-19 | 日本製鉄株式会社 | Two-phase stainless steel |
| JP2020186440A (en) * | 2019-05-14 | 2020-11-19 | 日本製鉄株式会社 | Two-phase stainless steel |
| JP7248893B2 (en) | 2019-05-14 | 2023-03-30 | 日本製鉄株式会社 | duplex stainless steel |
| JP7248894B2 (en) | 2019-05-14 | 2023-03-30 | 日本製鉄株式会社 | duplex stainless steel |
| WO2021026778A1 (en) * | 2019-08-13 | 2021-02-18 | 采纳科技股份有限公司 | Stainless steel material capable of improving the rigidity and toughness of injection needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100547102C (en) | 2009-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100547102C (en) | A kind of biphase antibiotic stainless steel and manufacture method thereof | |
| CN107881413B (en) | A kind of antibacterial duplex stainless steel and its processing technology | |
| CN101230438A (en) | Austenitic antibiotic stainless steel and method for manufacturing same | |
| CN101280395A (en) | High-manganses low-nickel nanometer precipitated phase austenite antibacterial stainless steel | |
| CN100516273C (en) | Antibacterial austenitic stainless steel and its manufacturing method | |
| CN101775560B (en) | Nickel-saving austenitic stainless steel and production method thereof | |
| CN104087838B (en) | A kind of super-purity ferrite anti-bacteria stainless steel and manufacture method | |
| CN102127715A (en) | Tin-containing ferritic stainless steel alloy material and preparation method thereof | |
| CN102676943B (en) | Copper bearing antimicrobial duplex stainless steel | |
| CN102127718A (en) | Austenite antibacterial stainless steel | |
| CN102534410A (en) | Silver-containing austenitic antimicrobial stainless steel and manufacturing method thereof | |
| CN108677109A (en) | A kind of antibacterial austenitic stainless steel alloy material and its manufacturing method | |
| CN103667978A (en) | Preparation method of antibacterial austenitic stainless steel band | |
| CN101691644B (en) | Nonmagnetic soft stainless steel wire rod or stainless steel plate and method of manufacturing same | |
| CN102234741A (en) | Low-Ni-containing austenitic antimicrobial stainless steel and manufacturing method thereof | |
| CN101871079B (en) | Copper-bearing ferritic antibacterial stainless steel and manufacturing method thereof | |
| CN108728767A (en) | A kind of handrail or handle anti-bacteria stainless steel | |
| CN101353762B (en) | Silver copper composite deep punch type ferrite antibiotic stainless steel, steel plate and manufacturing method thereof | |
| CN108728760B (en) | Strong-antibacterial austenitic stainless steel applied to kitchen supplies | |
| CN100410412C (en) | Antibacterial austenitic stainless steel | |
| CN111910122A (en) | Austenitic antibacterial stainless steel and manufacturing method thereof | |
| CN102839327A (en) | Copper-bearing middle-chrome ferritic antibacterial stainless steel and manufacturing method thereof | |
| CN101376949A (en) | Martensite antibacterial stainless steel and manufacturing method thereof | |
| CN114196891A (en) | Martensite antibacterial stainless steel with excellent hot workability and manufacturing method thereof | |
| CN101586215A (en) | Ferrite antibacterial stainless steel and manufacture method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170214 Address after: 580 Baoshan District Changjiang Road, Shanghai, No. 200431 Patentee after: Baosteel Stainless Steel Co.,Ltd. Address before: 201900 Fujin Road, Shanghai, orchard, Baoshan District Patentee before: Baoshan Iron & Steel Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190826 Address after: The Hong Kong Industrial Zone in Luoyuan Bay Development Zone of Luoyuan County of Fuzhou City, Fujian province 350600 Patentee after: Baosteel Desheng Stainless Steel Co., Ltd. Address before: 580 Baoshan District Changjiang Road, Shanghai, No. 200431 Patentee before: Baosteel Stainless Steel Co.,Ltd. |