CN107299320A - A kind of anti-bacteria stainless steel - Google Patents
A kind of anti-bacteria stainless steel Download PDFInfo
- Publication number
- CN107299320A CN107299320A CN201710495620.0A CN201710495620A CN107299320A CN 107299320 A CN107299320 A CN 107299320A CN 201710495620 A CN201710495620 A CN 201710495620A CN 107299320 A CN107299320 A CN 107299320A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- bacteria
- silver
- laser
- evaporation
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/58—After-treatment
- C23C14/5806—Thermal treatment
- C23C14/5813—Thermal treatment using lasers
Abstract
The invention discloses a kind of anti-bacteria stainless steel, the anti-bacteria stainless steel is by being formed in 304 surface of stainless steel formation thickness up to 520um antibiotic layer, being specially：First, by being deposited silver coating is deposited in 304 coarse stainless steel surfaces, then candle is used by silver coating sooting, 304 stainless steels are put into laser cladding apparatus again, first 304 stainless steels are preheated using low-power, then laser melting coating is carried out to 304 stainless steels again, finally in antibiotic layer thick material surface formation 520um.
Description
The application is application number 201510784644.9,16 days November 2015 applying date, a kind of entitled " antibacterial
The divisional application of the preparation method of stainless steel ".
Technical field
The present invention relates to process for modifying surface field, and in particular to a kind of to assign its anti-microbial property by silver powder introducing stainless steel
Anti-bacteria stainless steel.
Background technology
The use of stainless steel tableware is more tired more universal, and the health of tableware, concerning critical, can kill thin for user
The tableware of bacterium seems more and more important in daily life.But stainless steel, in itself without anti-microbial property, food is placed on for a long time
Easily trigger the generation of bacterium in tableware.Inexpensive, high performance anti-bacteria stainless steel is prepared as current urgent problem.
Anti-biotic material silver is incorporated into 304 stainless steel surfaces by the present invention, is assigned 304 stainless steel anti-microbial properties and is improved its corrosion resistance
Energy.
" anti-bacteria stainless steel clad steel plate and its manufacture method "（Publication number CN102260832A）One kind is disclosed carbon-based
The method that surface of steel plate prepares anti-bacteria stainless steel coating, is by anti-bacteria stainless steel powder spray on carbon-based steel plate, then to carry out
Compound Heat Treatment, but this method has the danger come off between matrix and coating.
" a kind of austenite antimicrobial stainless steel "（Publication number CN102965585A）One kind is disclosed by silver-colored directly melting to not
Method in rust steel, this method is larger using the amount of silver.
" a kind of anti-bacteria stainless steel of surface argentiferous "（Publication number CN203937247U）One kind is disclosed to be incorporated into silver not
The method for steel matrix of becoming rusty, forms antibiotic layer on matrix, and antibiotic layer thickness is 60-100um.
The present invention is a kind of brand-new preparation method, will be by multiple steps such as evaporation, laser melting coating in 304 stainless steel watches
Face prepares antibiotic layer, and whole stainless steel material is integral, the problem of in the absence of coming off, and silver can fuse into stainless steel surfaces
520um thickness, at the same it is smaller using the amount of silver, form that antibiotic layer thickness is deeper, material surface remains to hold after being worn
Supervention waves antibacterial effect.
The content of the invention
The present invention is in order to overcome the defect of prior art, and its object is to provide a kind of anti-bacteria stainless steel, the antibacterial is stainless
Steel be by antibiotic layer of the 304 stainless steel surfaces formation thickness up to 520um, assigning 304 stainless steels good anti-microbial property,
And improve the hardness and decay resistance of former 304 stainless steel.Belong to metallurgical binding between antibiotic layer and matrix of the present invention, no
The problem of in the presence of coming off, realize and assign 304 stainless steels stronger anti-microbial property in the case of less using silver.
To achieve the above object, the technical solution used in the present invention is：
First, silver coating is deposited in 304 coarse stainless steel surfaces by being deposited, then using candle by silver coating sooting, then
304 stainless steels are put into laser cladding apparatus, first 304 stainless steels preheated using low-power, then again to 304 not
The steel that becomes rusty carries out laser melting coating, finally in antibiotic layer thick material surface formation 520um.
The anti-bacteria stainless steel is adopted to be prepared from the following method, specifically includes following steps：
（1）Material prepares：Polished repeatedly 304 stainless steel surfaces using 400 mesh silicon carbide papers, it is ensured that its surface has sufficiently large
Roughness, is pressed into fritter by silver powder, is used during evaporation；
（2）304 stainless steels are first cleaned by ultrasonic twice with acetone, then are cleaned by ultrasonic one time with alcohol, surface and oil contaminant is removed, dries
It is stand-by；
（3）Vacuumized using evaporated device as 1.31 × 10-3Pa evaporation silver powder under the conditions of 1470 DEG C of crucible temperature is pressed into
Material to stainless steel surfaces, evaporation time is 170s-340s, it is to avoid silver powder be directly placed into when being vacuumized in equipment occur fly
Splash；
（4）The 304 stainless steel surfaces sootings that will be deposited using candle after silver, improve surface heat absorption rate；
（5）304 stainless steels handled well are put into laser cladding equipment and vacuumized, when vacuum reaches 1.2 × 10-3Pa's
When be passed through under argon gas protective condition 304 stainless steels preheated using laser, laser melting coating then is carried out to its surface,
The anti-bacteria stainless steel of surface argentiferous is obtained after cooling.
Preferably, using the first parallel grinding of 400 mesh silicon carbide papers, then vertical direction polishing, it is repeated 3 times.
Preferably, silver powder is is compacted formed small pieces of material by the silver of evaporation.
Preferably, first using laser in 650W power, 1mm spot diameters, 30% overlapping rate and 260mm/min speed
Under conditions of 304 stainless steel surfaces are preheated with 1 time respectively in parallel and vertical direction, then using 1850W power,
Cladding and remelting are carried out under conditions of 0.8mm spot diameters, 75% overlapping rate and 130mm/min speed to it, first at one
Cladding one time on direction, and then remelting one time again in vertical direction, is repeated in 3 times.
The acquirement of the present invention has the beneficial effect that：
1. the present invention changes the mode in the preset cladding silver powder of stainless steel surfaces, advantage is that candle can be used after evaporation
By stainless steel surfaces sooting, the heat absorption rate on surface is improved, meanwhile, evaporation layer is tightly combined with stainless steel, and heat transfer rate is fast, it is to avoid
Only fusing evaporation layer and be unable to the phenomenon of melting stainless steel.
2. using the first parallel grinding of 400 mesh silicon carbide papers, vertically polishing, it is ensured that the roughness of stainless steel surfaces, subtracting
The reflection of light has been descended, absorptivity of the material to laser energy is improved.
3. first carrying out laser melting coating after preheating, remelting is then carried out in vertical direction, is repeated 3 times, is that material surface reaches
Arrive the effect of laser remolten, silver can fuse into stainless steel top layer 520um thickness, and stainless steel metallurgical binding, rather than
By silver layer cladding in stainless steel surfaces.
4. the present invention only has stainless steel surfaces to contain silver, one is the consumption for subtracting silver, cost-effective；Two be stainless base steel
Internal portion not argentiferous, only surface silver content are smaller to the performance impact inside material matrix.
5. being introduced by laser melting coating after silver, impart the good anti-microbial property of material, antibiotic rate can reach 95% with
On, while the decay resistance of material surface is improved, OCP rise 200mV.
Brief description of the drawings
Accompanying drawing 1 is the backscattered electron phase in 304 stainless steel sections after laser melting coating.
Embodiment
A kind of anti-bacteria stainless steel, the embodiment evaporation time can arbitrarily be set between 170s to 340s.
1. prepare material, 304 stainless steels and the small pieces of material suppressed using silver powder.
2. it is repeated 3 times using 400 mesh silicon carbide papers respectively along parallel and vertical direction polishing stainless steel.
3. the stainless steel of air exercise milled is cleaned by ultrasonic, go to degrease.
4. vacuumized using evaporation coating device as 1.31 × 10-3Pa evaporation silver powder under the conditions of 1470 DEG C of crucible temperature is suppressed
Into material 170s-340s, 304 stainless steel surfaces formed silver evaporation layer.
5. taking out 304 stainless steels being deposited, the thorough sooting of layer surface is deposited in silver using candle.
6. 304 stainless steels are put into laser cladding apparatus, vacuumize and reach 1.2 × 10-3Argon gas guarantor is passed through when Pa
Shield, first using laser under conditions of 650W power, 1mm spot diameters, 30% overlapping rate and 260mm/min speed to 304
Stainless steel surfaces preheat 1 time respectively in parallel and vertical direction, then using 1850W power, 0.8mm spot diameters,
Carry out cladding and remelting under conditions of 75% overlapping rate and 130mm/min speed to it, first cladding one time in one direction,
And then remelting one time again in vertical direction, is repeated in 3 times.
7. after the completion of laser melting coating, treat that material is cooled down, take out material, check surface cladding effect.
Claims (3)
1. a kind of anti-bacteria stainless steel, it is characterised in that the anti-bacteria stainless steel is by forming thickness in 304 surface of stainless steel
Degree is formed up to 520um antibiotic layer, and the anti-bacteria stainless steel is adopted to be prepared from the following method, and its specific steps includes：
（1）Material prepares：Polished repeatedly 304 stainless steel surfaces using 400 mesh silicon carbide papers, it is ensured that its surface has enough
Big roughness, is pressed into fritter by silver powder, is used during evaporation；
（2）304 stainless steels are first cleaned by ultrasonic twice with acetone, then are cleaned by ultrasonic one time with alcohol, surface and oil contaminant is removed, dries in the air
It is dry stand-by；
（3）Vacuumized using evaporated device as 1.31 × 10-3Pa evaporation silver powder under the conditions of 1470 DEG C of crucible temperature is suppressed
Into material to stainless steel surfaces, evaporation time is 170s-340s；
（4）The 304 stainless steel surfaces sootings that will be deposited using candle after silver, improve surface heat absorption rate；
（5）304 stainless steels handled well are put into laser cladding equipment and vacuumized, when vacuum reaches 1.2 × 10-3Pa
When be passed through under argon gas protective condition 304 stainless steels preheated using laser, laser then is carried out to its surface
The anti-bacteria stainless steel of surface argentiferous is obtained after cladding, cooling；
Wherein, the step（5）In, first using laser 650W power, 1mm spot diameters, 30% overlapping rate and
304 stainless steel surfaces are preheated 1 time respectively in parallel and vertical direction under conditions of 260mm/min speed, then made
With it is carried out under conditions of 1850W power, 0.8mm spot diameters, 75% overlapping rate and 130mm/min speed cladding and
Remelting, first cladding one time in one direction, and then remelting one time again in vertical direction, is repeated in 3 times.
2. the anti-bacteria stainless steel according to claim 1, it is characterised in that the step（1）In, use 400 mesh water mills
Sand paper elder generation parallel grinding, then vertical direction polishing, are repeated 3 times.
3. the anti-bacteria stainless steel according to claim 1, it is characterised in that the step（3）In, the silver of evaporation is by silver
Powder is compacted formed small pieces of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495620.0A CN107299320B (en) | 2015-11-16 | 2015-11-16 | A kind of anti-bacteria stainless steel |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510784644.9A CN105200375B (en) | 2015-11-16 | 2015-11-16 | A kind of preparation method of anti-bacteria stainless steel |
| CN201710495620.0A CN107299320B (en) | 2015-11-16 | 2015-11-16 | A kind of anti-bacteria stainless steel |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510784644.9A Division CN105200375B (en) | 2015-11-16 | 2015-11-16 | A kind of preparation method of anti-bacteria stainless steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107299320A true CN107299320A (en) | 2017-10-27 |
| CN107299320B CN107299320B (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710495620.0A Active CN107299320B (en) | 2015-11-16 | 2015-11-16 | A kind of anti-bacteria stainless steel |
| CN201510784644.9A Expired - Fee Related CN105200375B (en) | 2015-11-16 | 2015-11-16 | A kind of preparation method of anti-bacteria stainless steel |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510784644.9A Expired - Fee Related CN105200375B (en) | 2015-11-16 | 2015-11-16 | A kind of preparation method of anti-bacteria stainless steel |
Country Status (1)
| Country | Link |
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| CN (2) | CN107299320B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607502A (en) * | 2019-10-16 | 2019-12-24 | 唐刀(厦门)不锈钢制品有限公司 | Preparation method of antibacterial stainless steel kitchen knife |
| CN112941442A (en) * | 2019-01-30 | 2021-06-11 | 浙江华达新型材料股份有限公司 | Preparation process of steel plate surface coating based on heat treatment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282843B (en) * | 2016-08-30 | 2018-01-09 | 阳江拓必拓科技股份有限公司 | A kind of stainless steel knife to prevent adhesion and preparation method thereof |
| CN109454502A (en) * | 2018-10-31 | 2019-03-12 | 浙江申久金属制品有限公司 | A kind of frosted stainless steel production method of antibacterial resistance and fingerprint resistance |
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| CN1995442A (en) * | 2006-02-28 | 2007-07-11 | 姜培齐 | Method for producing surface antibiotic product using physical gas phase deposition technology |
| CN203007383U (en) * | 2012-10-30 | 2013-06-19 | 桂林电子科技大学 | Antibacterial stainless steel with copper-cerium thin film contained on surface |
| CN103614719A (en) * | 2013-10-22 | 2014-03-05 | 深圳大学 | Preparation method of anti-microbial stainless steel |
| CN103991250A (en) * | 2014-04-30 | 2014-08-20 | 华南理工大学 | Antibiotic stainless steel with surface containing silver, and preparation method thereof |
| CN203937247U (en) * | 2014-04-30 | 2014-11-12 | 华南理工大学 | A kind of anti-bacteria stainless steel of surperficial argentiferous |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08165561A (en) * | 1994-12-12 | 1996-06-25 | Nippon Light Metal Co Ltd | Non-eluting antimicrobial member and its production |
| CN101565816A (en) * | 2008-04-25 | 2009-10-28 | 宝山钢铁股份有限公司 | Process for performing steel-strip film coating by using pulse laser evaporation ablation in vacuum |
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2015
- 2015-11-16 CN CN201710495620.0A patent/CN107299320B/en active Active
- 2015-11-16 CN CN201510784644.9A patent/CN105200375B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1995442A (en) * | 2006-02-28 | 2007-07-11 | 姜培齐 | Method for producing surface antibiotic product using physical gas phase deposition technology |
| CN203007383U (en) * | 2012-10-30 | 2013-06-19 | 桂林电子科技大学 | Antibacterial stainless steel with copper-cerium thin film contained on surface |
| CN103614719A (en) * | 2013-10-22 | 2014-03-05 | 深圳大学 | Preparation method of anti-microbial stainless steel |
| CN103991250A (en) * | 2014-04-30 | 2014-08-20 | 华南理工大学 | Antibiotic stainless steel with surface containing silver, and preparation method thereof |
| CN203937247U (en) * | 2014-04-30 | 2014-11-12 | 华南理工大学 | A kind of anti-bacteria stainless steel of surperficial argentiferous |
Non-Patent Citations (2)
| Title |
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| MICHAEL HANS ET AL.: "Laser cladding of stainless steel with a copper–silver alloy to generatesurfaces of high antimicrobial activity", 《APPLIED SURFACE SCIENCE》 * |
| 曹凤国: "《激光加工》", 30 June 2015, 化学工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112941442A (en) * | 2019-01-30 | 2021-06-11 | 浙江华达新型材料股份有限公司 | Preparation process of steel plate surface coating based on heat treatment |
| CN112941442B (en) * | 2019-01-30 | 2022-12-27 | 浙江华达新型材料股份有限公司 | Preparation process of steel plate surface coating based on heat treatment |
| CN110607502A (en) * | 2019-10-16 | 2019-12-24 | 唐刀(厦门)不锈钢制品有限公司 | Preparation method of antibacterial stainless steel kitchen knife |
| CN110607502B (en) * | 2019-10-16 | 2021-08-20 | 唐刀(厦门)不锈钢制品有限公司 | Preparation method of antibacterial stainless steel kitchen knife |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107299320B (en) | 2018-12-25 |
| CN105200375A (en) | 2015-12-30 |
| CN105200375B (en) | 2017-07-28 |
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Effective date of registration: 20181108 Address after: 528313 No. 38 Industrial Third Road, Tanzhou Industrial Zone, Chencun Town, Shunde District, Foshan City, Guangdong Province Applicant after: Foshan City, Tian Hui stainless steel Co. Ltd. Address before: 200051 Donghua University, Changning District, West Yan'an Road 1882, Donghua University Applicant before: Wang Bei Applicant before: Xu Fuchao |
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Effective date of registration: 20210119 Address after: 528300, C1-2, building C, No. 3, Xinglong 11th Road, Guanglong Industrial Zone, Shizhou community residents committee, Chencun Town, Shunde District, Foshan City, Guangdong Province Patentee after: Foshan tuopusen Engineering Materials Co.,Ltd. Address before: 2 / 66, area B, Liyuan Logistics City, No.38, Gongye San Road, Tanzhou Industrial Zone, Chencun Town, Shunde District, Foshan City, Guangzhou Patentee before: Dian Hui stainless steel Co.,Ltd. of Foshan City |
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