CN105200375A - Preparation method of antibacterial stainless steel - Google Patents
Preparation method of antibacterial stainless steel Download PDFInfo
- Publication number
- CN105200375A CN105200375A CN201510784644.9A CN201510784644A CN105200375A CN 105200375 A CN105200375 A CN 105200375A CN 201510784644 A CN201510784644 A CN 201510784644A CN 105200375 A CN105200375 A CN 105200375A
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- stainless steel
- silver
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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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Sciences (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Physical Vapour Deposition (AREA)
Abstract
The invention discloses a method for introducing silver serving as an antibacterial material to the surface of 304 stainless steel. The method comprises the steps of material preparing; evaporating; ultrasonic washing; sooting; laser cladding and the like and is a brand new method for introducing silver powder to the surface of 304 stainless steel. By using the method, the aim of achieving a relatively good antibacterial effect of the 304 stainless steel by using a relatively small quantity of silver is achieved, the antibacterial rate can be up to more than 95%, meanwhile, the corrosion resistance of the stainless steel is improved, and the thickness of a surface modified layer can be up to 520mu m.
Description
Technical field
The present invention relates to and silver powder is introduced stainless steel given its anti-microbial property, belonged to field of surface modification.
Background technology
The use of stainless steel tableware is more tired more general, the health of tableware concerning user concerning critical, the tableware that can kill bacterium seems more and more important in daily life.But stainless steel itself does not have anti-microbial property, food is placed on the generation easily causing bacterium in tableware for a long time.Preparation low cost, high performance anti-bacteria stainless steel become current urgent problem.Anti-biotic material silver is incorporated into 304 stainless steel surface by the present invention, gives 304 stainless steel anti-microbial properties and improves its corrosion resistance nature.
" anti-bacteria stainless steel clad steel plate and manufacture method thereof " (publication number CN102260832A) discloses a kind of method preparing anti-bacteria stainless steel coating at carbon back surface of steel plate, be by anti-bacteria stainless steel powder spraying on carbon back steel plate, then carry out combined heat treatment, but this method also exists the danger come off between matrix and coating.
" a kind of austenite antimicrobial stainless steel " (publication number CN102965585A) disclose a kind of by direct for silver melting to the method in stainless steel, this method uses the amount of silver larger.
" a kind of anti-bacteria stainless steel of surperficial argentiferous " (publication number CN203937247U) discloses a kind of method silver being incorporated into stainless steel base, and matrix forms antibiotic layer, and antibiotic layer thickness is 60-100um.
The present invention is a kind of brand-new preparation method, antibiotic layer will be prepared at 304 stainless steel surface by multiple step such as evaporation, laser melting coating, whole stainless material is one, there is not the problem come off, silver can fuse into the thickness of stainless steel surface 520um, use the amount of silver less, institute forms antibiotic layer thickness comparatively deeply simultaneously, still can continue performance antibacterial effect after material surface is worn.
Summary of the invention
The invention provides a kind of method silver being incorporated into 304 stainless steel surface, form at 304 stainless steel surface the antibiotic layer that thickness can reach 520um, give 304 stainless steel good antimicrobial property, and improve former 304 stainless hardness and corrosion resistance natures.Belong to metallurgical binding between antibiotic layer and matrix, there is not the problem come off, achieve and give 304 stainless steels stronger anti-microbial property when using silver less.
A kind of by evaporation in 304 coarse stainless steel surface depositing silver coatings, then use candle by silver coating sooting, again 304 stainless steels are put into laser cladding apparatus, low power is first used to preheat 304 stainless steels, and then laser melting coating is carried out to 304 stainless steels, finally form the thick antibiotic layer of 520um at material surface, comprise the following steps:
(1) material prepares: use 400 order silicon carbide papers repeatedly to polish 304 stainless steel surface, ensure that its surface has enough large roughness, silver powder is pressed into fritter, uses during evaporation;
(2) acetone ultrasonic cleaning twice is first used to 304 stainless steels, then use alcohol ultrasonic cleaning one time, remove surface and oil contaminant, dry stand-by;
(3) using evaporated device to vacuumize is 1.31 × 10
-3the Pa material that evaporation silver powder is pressed under crucible temperature 1470 DEG C of conditions is to stainless steel surface, and the evaporation time is 170s-340s, avoids silver powder directly to put into when equipment vacuumizes and splashes;
(4) use candle by 304 stainless steel surface sootings after evaporation silver, improve surperficial heat absorption rate;
(5) 304 stainless steels handled well are put into laser cladding equipment to vacuumize, when vacuum tightness reaches 1.2 × 10
-3use laser apparatus to carry out preheating to 304 stainless steels under passing into argon shield condition when Pa, then laser melting coating is carried out to its surface, after cooling, obtain the anti-bacteria stainless steel of surperficial argentiferous.
Preferably, use the first parallel grinding of 400 order silicon carbide papers, then vertical direction polishing, repeatedly carry out 3 times.
Preferably, the small pieces of material of silver for silver powder compacting is formed of evaporation.
Preferably, first use laser apparatus 650W power, 1mm spot diameter, 30% overlapping rate and the condition of 260mm/min speed under in parallel and vertical direction, 1 time is preheated respectively to 304 stainless steel surface, then use 1850W power, 0.8mm spot diameter, 75% overlapping rate and 130mm/min speed condition under cladding and remelting are carried out to it, first cladding in one direction one time, and then remelting one time more in vertical direction, repeats 3 times successively.
It is of the present invention that to obtain beneficial effect as follows.
1. change the mode at the preset cladding silver powder of stainless steel surface, advantage is after evaporation, to use candle by stainless steel surface sooting, improve the heat absorption rate on surface, simultaneously, evaporation layer is combined with stainless steel closely, heat transfer rate is fast, avoids only fusing evaporation layer and can not the phenomenon of melting stainless steel.
2. use the first parallel grinding of 400 order silicon carbide papers, in vertical polishing, ensure that the roughness of stainless steel surface, subtract the reflection having descended light, improve the specific absorption of material for laser light energy.
3. first carry out laser melting coating after preheating, then carry out remelting in vertical direction, repeat 3 times, it is the effect that material surface reaches laser remolten, silver can fuse into the thickness of stainless steel top layer 520um, with stainless steel metallurgical binding, instead of by silver layer cladding at stainless steel surface.
4. the present invention only has stainless steel surface to contain silver, and one is subtract silver-colored consumption, cost-saving; Two is stainless steel base inside not argentiferous, only surperficial silver content, less to the performance impact of material matrix inside.
5. after introducing silver by laser melting coating, impart material good antimicrobial property, antibiotic rate can reach more than 95%, improves the corrosion resistance nature of material surface simultaneously, and open circuit potential raises 200mV.
Accompanying drawing explanation
Accompanying drawing 1 is the backscattered electron phase in 304 stainless steel cross sections after laser melting coating.
Embodiment
This embodiment evaporation time can arbitrarily be arranged between 170s to 340s.
1. prepare material, 304 stainless steels and the small pieces of material using silver powder to suppress.
2. use 400 order silicon carbide papers respectively along parallel and vertical direction polishing stainless steel, repeat 3 times.
3. the stainless steel of milled of fighting each other carries out ultrasonic cleaning, wipe oil.
4. using evaporation coating device to vacuumize is 1.31 × 10
-3the Pa material 170s-340s that evaporation silver powder is pressed under crucible temperature 1470 DEG C of conditions, forms silver-colored evaporation layer at 304 stainless steel surface.
5. take out 304 good stainless steels of evaporation, use candle silver to be steamed the thorough sooting of coating surface.
6. 304 stainless steels are put into laser cladding apparatus, vacuumize and reach 1.2 × 10
-3argon shield is passed into when Pa; first use laser apparatus 650W power, 1mm spot diameter, 30% overlapping rate and the condition of 260mm/min speed under in parallel and vertical direction, 1 time is preheated respectively to 304 stainless steel surface; then use 1850W power, 0.8mm spot diameter, 75% overlapping rate and 130mm/min speed condition under cladding and remelting are carried out to it; first cladding in one direction one time; and then remelting one time more in vertical direction, repeats 3 times successively.
7. after laser melting coating completes, treat material cooled, take out material, check surface cladding effect.
Claims (4)
1. a preparation method for anti-bacteria stainless steel, is characterized in that, said method comprising the steps of:
(1) material prepares: use 400 order silicon carbide papers repeatedly to polish 304 stainless steel surface, ensure that its surface has enough large roughness, silver powder is pressed into fritter, uses during evaporation;
(2) acetone ultrasonic cleaning twice is first used to 304 stainless steels, then use alcohol ultrasonic cleaning one time, remove surface and oil contaminant, dry stand-by;
(3) using evaporated device to vacuumize is 1.31 × 10
-3the Pa material that evaporation silver powder is pressed under crucible temperature 1470 DEG C of conditions is to stainless steel surface, and the evaporation time is 170s-340s;
(4) use candle by 304 stainless steel surface sootings after evaporation silver, improve surperficial heat absorption rate;
(5) 304 stainless steels handled well are put into laser cladding equipment to vacuumize, when vacuum tightness reaches 1.2 × 10
-3use laser apparatus to carry out preheating to 304 stainless steels under passing into argon shield condition when Pa, then laser melting coating is carried out to its surface, after cooling, obtain the anti-bacteria stainless steel of surperficial argentiferous.
2. the preparation method of a kind of anti-bacteria stainless steel according to claim 1, is characterized in that, in step (1), uses the first parallel grinding of 400 order silicon carbide papers, then vertical direction polishing, repeatedly carries out 3 times.
3. the preparation method of a kind of anti-bacteria stainless steel according to claim 1, is characterized in that, in step (3), and the small pieces of material of silver for silver powder compacting is formed of evaporation.
4. the preparation method of a kind of anti-bacteria stainless steel according to claim 1, it is characterized in that, in step (5), first use laser apparatus 650W power, 1mm spot diameter, 30% overlapping rate and the condition of 260mm/min speed under in parallel and vertical direction, 1 time is preheated respectively to 304 stainless steel surface, then use 1850W power, 0.8mm spot diameter, 75% overlapping rate and 130mm/min speed condition under cladding and remelting are carried out to it, first cladding in one direction one time, and then remelting one time more in vertical direction, repeats 3 times successively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495620.0A CN107299320B (en) | 2015-11-16 | 2015-11-16 | A kind of anti-bacteria stainless steel |
| CN201510784644.9A CN105200375B (en) | 2015-11-16 | 2015-11-16 | A kind of preparation method of anti-bacteria stainless steel |
Applications Claiming Priority (1)
| 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 |
Related Child Applications (1)
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| CN201710495620.0A Division CN107299320B (en) | 2015-11-16 | 2015-11-16 | A kind of anti-bacteria stainless steel |
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| Publication Number | Publication Date |
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| CN105200375A true CN105200375A (en) | 2015-12-30 |
| CN105200375B CN105200375B (en) | 2017-07-28 |
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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 |
| CN201710495620.0A Active CN107299320B (en) | 2015-11-16 | 2015-11-16 | A kind of anti-bacteria stainless steel |
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| CN201710495620.0A Active CN107299320B (en) | 2015-11-16 | 2015-11-16 | A kind of anti-bacteria stainless steel |
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| CN (2) | CN105200375B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282843A (en) * | 2016-08-30 | 2017-01-04 | 阳江拓必拓科技股份有限公司 | A kind of stainless steel knife of anti 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 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112941443B (en) * | 2019-01-30 | 2022-11-04 | 浙江华达新型材料股份有限公司 | Coating type preparation process for plating coating on surface of steel plate |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08165561A (en) * | 1994-12-12 | 1996-06-25 | Nippon Light Metal Co Ltd | Non-eluting antimicrobial member and its production |
| CN1995442A (en) * | 2006-02-28 | 2007-07-11 | 姜培齐 | Method for producing surface antibiotic product using physical gas phase deposition technology |
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103614719B (en) * | 2013-10-22 | 2016-01-06 | 深圳大学 | A kind of preparation method of anti-bacteria stainless steel |
| CN103991250B (en) * | 2014-04-30 | 2016-05-04 | 华南理工大学 | Anti-bacteria stainless steel of a kind of surperficial argentiferous 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 |
-
2015
- 2015-11-16 CN CN201510784644.9A patent/CN105200375B/en not_active Expired - Fee Related
- 2015-11-16 CN CN201710495620.0A patent/CN107299320B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08165561A (en) * | 1994-12-12 | 1996-06-25 | Nippon Light Metal Co Ltd | Non-eluting antimicrobial member and its production |
| CN1995442A (en) * | 2006-02-28 | 2007-07-11 | 姜培齐 | Method for producing surface antibiotic product using physical gas phase deposition technology |
| 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 |
Non-Patent Citations (3)
| Title |
|---|
| MICHAEL HANS ET AL.: ""Laser cladding of stainless steel with a copper–silver alloy to generatesurfaces of high antimicrobial activity"", 《APPLIED SURFACE SCIENCE》 * |
| 庄哲峰等: "《工程材料及其应用》", 31 August 2013, 武汉：华中科技大学出版社 * |
| 曹凤国: "《激光加工》", 30 June 2015, 北京：化学工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282843A (en) * | 2016-08-30 | 2017-01-04 | 阳江拓必拓科技股份有限公司 | A kind of stainless steel knife of anti and preparation method thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107299320B (en) | 2018-12-25 |
| CN105200375B (en) | 2017-07-28 |
| CN107299320A (en) | 2017-10-27 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Chunyan Inventor before: Wang Bei Inventor before: Xu Fuchao |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170705 Address after: 516000 Guangdong city in Huizhou Province town of Tong Road South Lianfa Lianxin plastics processing plant Applicant after: Huizhou Fengzheng Stainless Steel Products Co.,Ltd. Address before: 200051 No. 1882, Changning District, Shanghai, West Yan'an Road Applicant before: Wang Bei Applicant before: Xu Fuchao |
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Granted publication date: 20170728 Termination date: 20211116 |