CN114214618B - Stainless steel for high-strength and high-toughness antibacterial cutters and preparation method thereof - Google Patents
Stainless steel for high-strength and high-toughness antibacterial cutters and preparation method thereof Download PDFInfo
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- CN114214618B CN114214618B CN202111472302.5A CN202111472302A CN114214618B CN 114214618 B CN114214618 B CN 114214618B CN 202111472302 A CN202111472302 A CN 202111472302A CN 114214618 B CN114214618 B CN 114214618B
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 106
- 239000010935 stainless steel Substances 0.000 title claims abstract description 40
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000010410 layer Substances 0.000 claims abstract description 53
- 239000012792 core layer Substances 0.000 claims abstract description 24
- 239000011247 coating layer Substances 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims description 25
- 238000011049 filling Methods 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000003723 Smelting Methods 0.000 claims description 9
- 238000000137 annealing Methods 0.000 claims description 9
- 238000005498 polishing Methods 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 8
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 239000010962 carbon steel Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005097 cold rolling Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 230000000845 anti-microbial effect Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000010949 copper Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical class [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/106—Coating with metal alloys or metal elements only
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
- A01N59/20—Copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
-
- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/02—Coating starting from inorganic powder by application of pressure only
- C23C24/04—Impact or kinetic deposition of particles
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- General Health & Medical Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Inorganic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Mechanical Engineering (AREA)
- Dentistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
The invention discloses a high-strength and high-toughness stainless steel for an antibacterial cutter and a preparation method thereof. According to the stainless steel, the elastic core layer is filled in the stainless steel, and the stainless steel has very good toughness by matching with the vertical thinning groove at the outer side, and meanwhile, the stainless steel accords with the antibacterial basal layer and the sprayed antibacterial coating layer, so that the prepared cutter has very good antibacterial effect, and the antibacterial service time is greatly prolonged.
Description
Technical Field
The invention relates to the field of antibacterial cutters, in particular to stainless steel for a high-strength and high-toughness antibacterial cutter and a preparation method thereof.
Background
The antibacterial stainless steel is prepared by adding a proper amount of alloy elements with antibacterial effect into stainless steel, and performing antibacterial treatment to obtain the final product with stable processability and good antibacterial property. The antibacterial alloy elements comprise mercury, silver, lead, copper, aluminum, nickel, zinc, cadmium and the like, according to the principle that no negative effect is generated on human bodies, silver, copper and silver-copper compounds are generally added, the types of the conventional antibacterial cutters are many, an antibacterial layer is generally only sprayed on the outer part of the antibacterial cutters, and after the stainless steel of the cutters is used for a long time, if harder food materials are encountered, the antibacterial layer on the surface layer is easily damaged, so that the antibacterial service life is reduced.
Disclosure of Invention
The invention aims to solve the technical problems of stainless steel for a high-strength and high-toughness antibacterial cutter and a preparation method thereof, and the stainless steel is made of a novel stainless steel material, so that the toughness can be effectively improved, the antibacterial service life can be effectively prolonged, the antibacterial effect is better, and the service life is longer.
The invention is realized by the following technical scheme: a stainless steel for a high-strength and high-toughness antibacterial cutter and a preparation method thereof are provided, the stainless steel comprises an antibacterial basal layer made of austenitic antibacterial stainless steel, a filling cavity is formed in the antibacterial basal layer from top to bottom, a tough core layer is filled in the filling cavity, more than one thinning groove is vertically formed in the two outer sides of the antibacterial basal layer, and antibacterial coating layers are sprayed on the two side surfaces of the antibacterial basal layer and in the thinning grooves, so that the two side surfaces of the antibacterial basal layer respectively form antibacterial surfaces.
As the preferable technical scheme, the core layer is made of a high-toughness metal material, and the upper end face of the core layer is flush with the upper end face of the antibacterial basal layer.
The preparation method of the stainless steel for the high-strength and high-toughness antibacterial cutters comprises the following steps:
s1, selecting austenitic antibacterial stainless steel as an antibacterial basal layer, polishing to a required thickness and size by using polishing equipment, and forming a filling cavity at the top of the antibacterial basal layer by using a grooving machine;
s2, machining the core layer with elastic performance into the same volume as the filling cavity, driving the core layer into the filling cavity by using mechanical equipment, enabling the core layer to be in close fit connection with the antibacterial substrate layer, and polishing the tops of the core layer and the antibacterial substrate layer to be flat;
s3, preparing an antibacterial coating layer;
and S4, spraying the antibacterial coating layer on two side surfaces of the antibacterial basal layer by using external equipment, and finally filling the antibacterial basal layer into the thinning grooves on two sides of the antibacterial basal layer until the two side surfaces of the antibacterial basal layer are flush.
As a preferred technical scheme, the preparation process of the antibacterial coating layer comprises the following steps:
heating Cu, ag and rare earth elements to form a mixed solution, and then placing a binder into the mixed solution to be fully and uniformly stirred;
smelting raw materials in a smelting crucible, and atomizing molten steel subjected to smelting by high-pressure supersonic nitrogen to prepare spherical powder with the particle size of 1-30 mu m;
step three, powder reduction annealing: reducing and annealing the powder under the protection of hydrogen to control the oxygen content in the powder to be below 0.4wt percent and the annealing temperature to be 200-500 ℃;
spraying powder on the surface of the carbon steel layer substrate to prepare a contact interface between the carbon steel substrate and the antibacterial stainless steel coating, wherein spraying driving gas is mixed gas of nitrogen, hydrogen and helium;
fifthly, heating the workpiece by adopting electromagnetic waves with the frequency of more than 350kHz, wherein the heating temperature is 1050-1200 ℃;
step six, heating the surface of the antibacterial basal layer in the previous step to 600-800 ℃ by adopting electromagnetic waves of 20-50kHz, and air-cooling after heat preservation;
and step seven, cold rolling to obtain a finished product.
The beneficial effects of the invention are as follows: according to the stainless steel, the elastic core layer is filled in the stainless steel, and the stainless steel has very good toughness by matching with the vertical thinning groove at the outer side, and meanwhile, the stainless steel accords with the antibacterial basal layer and the sprayed antibacterial coating layer, so that the prepared cutter has very good antibacterial effect, and the antibacterial service time is greatly prolonged.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a stainless steel substrate according to the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
In the description of the present invention, it should be understood that the terms "one end," "the other end," "the outer side," "the upper," "the inner side," "the horizontal," "coaxial," "the center," "the end," "the length," "the outer end," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, in the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Terms such as "upper," "lower," and the like used herein to refer to a spatially relative position are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly
In the present invention, unless explicitly specified and limited otherwise, the terms "disposed," "coupled," "connected," "plugged," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1, the high-strength and toughness stainless steel for the antibacterial cutter and the preparation method thereof comprise the steps that an antibacterial substrate layer 1 made of austenitic antibacterial stainless steel is adopted, a filling cavity is formed in the antibacterial substrate layer from top to bottom, a tough core layer 3 is filled in the filling cavity, more than one thinning groove 2 is vertically formed in the outer side two sides of the antibacterial substrate layer, and antibacterial coating layers are sprayed on the two side surfaces of the antibacterial substrate layer and in the thinning grooves, so that antibacterial surfaces are respectively formed on the two side surfaces of the antibacterial substrate layer, the core layer is made of a high-toughness metal material, and the upper end surface of the core layer is level with the upper end surface of the antibacterial substrate layer.
The method comprises the following steps:
s1, selecting austenitic antibacterial stainless steel as an antibacterial basal layer, polishing to a required thickness and size by using polishing equipment, and forming a filling cavity at the top of the antibacterial basal layer by using a grooving machine;
s2, machining the core layer with elastic performance into the same volume as the filling cavity, driving the core layer into the filling cavity by using mechanical equipment, enabling the core layer to be in close fit connection with the antibacterial substrate layer, and polishing the tops of the core layer and the antibacterial substrate layer to be flat;
s3, preparing an antibacterial coating layer;
and S4, spraying the antibacterial coating layer on two side surfaces of the antibacterial basal layer by using external equipment, and finally filling the antibacterial basal layer into the thinning grooves on two sides of the antibacterial basal layer until the two side surfaces of the antibacterial basal layer are flush.
The antibacterial coating layer is prepared by the following steps: heating Cu, ag and rare earth elements to form a mixed solution, and then placing a binder in the mixed solution to fully and uniformly stir the mixed solution; smelting raw materials in a smelting crucible, and atomizing molten steel subjected to smelting by high-pressure supersonic nitrogen to prepare spherical powder with the particle size of 1-30 mu m; powder reduction annealing: reducing and annealing the powder under the protection of hydrogen to control the oxygen content in the powder to be below 0.4wt percent and the annealing temperature to be 200-500 ℃; spraying powder on the surface of the carbon steel layer substrate to prepare a contact interface between the carbon steel substrate and the antibacterial stainless steel coating, wherein spraying driving gas is mixed gas of nitrogen, hydrogen and helium; electromagnetic waves with the frequency of more than 350kHz are adopted to heat the material, and the heating temperature is 1050-1200 ℃; heating the surface of the antibacterial basal layer in the previous step to 600-800 ℃ by adopting electromagnetic waves of 20-50kHz, and air cooling after heat preservation; cold rolling to obtain the final product.
The beneficial effects of the invention are as follows: according to the stainless steel, the elastic core layer is filled in the stainless steel, and the stainless steel has very good toughness by matching with the vertical thinning groove at the outer side, and meanwhile, the stainless steel accords with the antibacterial basal layer and the sprayed antibacterial coating layer, so that the prepared cutter has very good antibacterial effect, and the antibacterial service time is greatly prolonged.
The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (4)
1. A stainless steel for a high-strength and high-toughness antibacterial cutter is characterized in that: the antibacterial substrate comprises an antibacterial substrate layer made of austenitic antibacterial stainless steel, wherein a filling cavity is formed in the antibacterial substrate layer from top to bottom, a tough core layer is filled in the filling cavity, more than one thinning groove is vertically formed in two outer sides of the antibacterial substrate layer, and antibacterial coating layers are sprayed on two side surfaces of the antibacterial substrate layer and in the thinning grooves, so that antibacterial surfaces are respectively formed on the two side surfaces of the antibacterial substrate layer.
2. The high strength and toughness stainless steel for antibacterial cutters according to claim 1, characterized in that: the core layer is made of a high-toughness metal material, and the upper end face of the core layer is flush with the upper end face of the antibacterial basal layer.
3. A method of preparing the high strength and toughness stainless steel for antimicrobial tools according to claim 1, comprising the steps of:
s1, selecting austenitic antibacterial stainless steel as an antibacterial basal layer, polishing to a required thickness and size by using polishing equipment, and forming a filling cavity at the top of the antibacterial basal layer by using a grooving machine;
s2, machining the core layer with elastic performance into the same volume as the filling cavity, driving the core layer into the filling cavity by using mechanical equipment, enabling the core layer to be in close fit connection with the antibacterial substrate layer, and polishing the tops of the core layer and the antibacterial substrate layer to be flat;
s3, preparing an antibacterial coating layer;
and S4, spraying the antibacterial coating layer on two side surfaces of the antibacterial basal layer by using external equipment, and finally filling the antibacterial basal layer into the thinning grooves on two sides of the antibacterial basal layer until the two side surfaces of the antibacterial basal layer are flush.
4. The method for preparing the stainless steel for the high-strength and toughness antibacterial cutters according to claim 3, which is characterized in that: the antibacterial coating layer is prepared by the following steps:
heating Cu, ag and rare earth elements to form a mixed solution, putting a binder into the mixed solution, and fully and uniformly stirring the mixed solution;
smelting raw materials in a smelting crucible, and atomizing molten steel subjected to smelting by high-pressure supersonic nitrogen to prepare spherical powder with the particle size of 1-30 mu m;
step three, powder reduction annealing: reducing and annealing the powder under the protection of hydrogen to control the oxygen content in the powder to be below 0.4wt percent and the annealing temperature to be 200-500 ℃;
spraying powder on the surface of the carbon steel layer substrate to prepare a contact interface between the carbon steel substrate and the antibacterial stainless steel coating, wherein spraying driving gas is mixed gas of nitrogen, hydrogen and helium;
fifthly, heating the workpiece by adopting electromagnetic waves with the frequency of more than 350kHz, wherein the heating temperature is 1050-1200 ℃;
step six, heating the surface of the antibacterial basal layer in the previous step to 600-800 ℃ by adopting electromagnetic waves of 20-50kHz, and air-cooling after heat preservation;
and step seven, cold rolling to obtain a finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111472302.5A CN114214618B (en) | 2021-12-04 | 2021-12-04 | Stainless steel for high-strength and high-toughness antibacterial cutters and preparation method thereof |
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| CN202111472302.5A CN114214618B (en) | 2021-12-04 | 2021-12-04 | Stainless steel for high-strength and high-toughness antibacterial cutters and preparation method thereof |
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| CN112318964A (en) * | 2020-10-30 | 2021-02-05 | 湖南三泰新材料股份有限公司 | Stainless steel clad steel plate and manufacturing method thereof |
| DE102019122333A1 (en) * | 2019-08-20 | 2021-02-25 | Reinhard Hafellner | Elastic sandwich component |
| CN112935435A (en) * | 2021-01-28 | 2021-06-11 | 横店集团东磁股份有限公司 | Punch for compression molding of composite sheet hard alloy substrate and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007132919A1 (en) * | 2006-05-17 | 2007-11-22 | Ishida Co., Ltd. | Antibacterial laminate |
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| US4618540A (en) * | 1983-05-13 | 1986-10-21 | Santrade Limited | Compound body and method of making the same |
| JPH063994A (en) * | 1992-06-22 | 1994-01-14 | Showa Electric Wire & Cable Co Ltd | Production of rubber roller coated with fluororesin |
| JPH08193218A (en) * | 1995-01-13 | 1996-07-30 | Nisshin Steel Co Ltd | Production of stainless steel with antibacterial film |
| JPH11229186A (en) * | 1998-02-19 | 1999-08-24 | Sumitomo Osaka Cement Co Ltd | Antibacterial corrosion-resistant light alloy and its production |
| CN107350286A (en) * | 2017-08-03 | 2017-11-17 | 太原科技大学 | A kind of three layers of anti-bacteria stainless steel/aluminium/stainless steel composite material and its manufacture method |
| CN110170605A (en) * | 2019-04-26 | 2019-08-27 | 佛山市徐城记厨具有限公司 | The preparation method of cutter and its composite material and the composite material |
| DE102019122333A1 (en) * | 2019-08-20 | 2021-02-25 | Reinhard Hafellner | Elastic sandwich component |
| CN112318964A (en) * | 2020-10-30 | 2021-02-05 | 湖南三泰新材料股份有限公司 | Stainless steel clad steel plate and manufacturing method thereof |
| CN112935435A (en) * | 2021-01-28 | 2021-06-11 | 横店集团东磁股份有限公司 | Punch for compression molding of composite sheet hard alloy substrate and preparation method thereof |
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Effective date of registration: 20240414 Address after: 518000, Building C, Minzhi Stock Commercial Center, North Station Community, Minzhi Street, Longhua District, Shenzhen City, Guangdong Province 3201 Patentee after: Shenzhen Bolton Innovation Technology Co.,Ltd. Country or region after: China Address before: 518000 15d01, 15e01, 15f01, 15g01, 15h01, building a, anhongji TIANYAO Plaza, Daling community, Minzhi street, Longhua District, Shenzhen, Guangdong Patentee before: SHENZHEN BOLTON TECHNOLOGY Co.,Ltd. Country or region before: China |