CN114214618A - A kind of stainless steel for high-strength antibacterial knife and preparation method thereof - Google Patents

A kind of stainless steel for high-strength antibacterial knife and preparation method thereof Download PDF

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CN114214618A
CN114214618A CN202111472302.5A CN202111472302A CN114214618A CN 114214618 A CN114214618 A CN 114214618A CN 202111472302 A CN202111472302 A CN 202111472302A CN 114214618 A CN114214618 A CN 114214618A
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antibacterial
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stainless steel
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CN114214618B (en
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刘化柱
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Shenzhen Bolton Technology Co ltd
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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
    • 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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Abstract

The invention discloses a stainless steel for a high-toughness antibacterial cutter and a preparation method thereof. According to the stainless steel, the elastic core layer is filled in the stainless steel, and the vertical thinning groove on the outer side is matched, so that the stainless steel has very good toughness, and meanwhile, the antibacterial base layer and the sprayed antibacterial coating layer are met, so that the prepared cutter has a very good antibacterial effect, and the antibacterial service life is greatly prolonged.

Description

High-toughness stainless steel for antibacterial cutter and preparation method thereof
Technical Field
The invention relates to the field of antibacterial cutters, in particular to high-toughness stainless steel for an 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 a 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, and according to the principle of no negative effect on a human body, the compound of silver, copper and silver-copper is generally added, the types of the existing antibacterial cutters are many, and an antibacterial layer is generally sprayed on the outer part of the antibacterial cutter.
Disclosure of Invention
The invention aims to solve the technical problem that the stainless steel for the high-toughness antibacterial cutter and the preparation method thereof are made of a new stainless steel material, can effectively improve the toughness and the antibacterial service life, and have better antibacterial effect and longer service life.
The invention is realized by the following technical scheme: the stainless steel for the high-strength and high-toughness antibacterial cutter 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 core layer with toughness 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 sides of the antibacterial substrate layer and in the thinning grooves, so that antibacterial surfaces are formed on two sides of the antibacterial substrate layer respectively.
As a preferred 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 substrate layer.
A preparation method of stainless steel for a high-toughness antibacterial cutter comprises the following steps:
s1, selecting austenitic antibacterial stainless steel as an antibacterial substrate layer, polishing to a required thickness and size by using polishing equipment, and forming a filling cavity on the top of the antibacterial substrate layer by using a grooving machine;
s2, processing the core layer with the 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 tightly matched and connected with the antibacterial substrate layer, and polishing the tops of the core layer and the antibacterial substrate layer to be smooth;
s3, preparing an antibacterial coating layer;
and S4, spraying the antibacterial coating layer on two sides of the antibacterial base layer by using external equipment, and finally filling the antibacterial coating layer in the thinning grooves on the two sides of the antibacterial base layer until the two sides of the antibacterial base layer are flush.
As a preferred technical scheme, the preparation process of the antibacterial coating layer is as follows:
heating Cu, Ag and rare earth elements to form a mixed solution, adding a binder into the mixed solution, and fully and uniformly stirring;
smelting the raw materials in a smelting crucible, and preparing the smelted molten steel into spherical powder with the particle size of 1-30 microns through high-pressure supersonic nitrogen atomization;
step three, powder reduction annealing: under the protection of hydrogen, reducing and annealing the powder to control the oxygen content in the powder to be below 0.4 wt%, wherein the annealing temperature is 200-500 ℃;
spraying the 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 the spraying driving gas is a mixed gas of nitrogen, hydrogen and helium;
fifthly, heating the steel plate by adopting electromagnetic waves above 350kHz at 1050-1200 ℃;
heating the surface of the antibacterial substrate layer in the last step to 600 ℃ and 800 ℃ by adopting 20-50kHz electromagnetic waves, and carrying out air cooling after heat preservation;
and step seven, cold rolling to obtain a finished product.
The invention has the beneficial effects that: according to the stainless steel, the elastic core layer is filled in the stainless steel, and the vertical thinning groove on the outer side is matched, so that the stainless steel has very good toughness, and meanwhile, the antibacterial base layer and the sprayed antibacterial coating layer are met, so that the prepared cutter has a very good antibacterial effect, and the antibacterial service life is greatly prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
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 any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms 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 at other orientations) and the spatially relative descriptors used herein interpreted accordingly
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in figure 1, the stainless steel for the high-toughness antibacterial cutter and the preparation method thereof comprise an antibacterial substrate layer 1 made of austenitic antibacterial stainless steel, wherein a filling cavity is formed in the antibacterial substrate layer from top to bottom, a core layer 3 with toughness is filled in the filling cavity, more than one thinning groove 2 is vertically formed in two outer sides of the antibacterial substrate layer, and antibacterial coating layers are sprayed on two sides of the antibacterial substrate layer and in the thinning grooves, so that antibacterial surfaces are respectively formed on two sides of the antibacterial substrate layer, the core layer is made of a metal material with high toughness, and the upper end surface of the core layer is flush 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 substrate layer, polishing to a required thickness and size by using polishing equipment, and forming a filling cavity on the top of the antibacterial substrate layer by using a grooving machine;
s2, processing the core layer with the 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 tightly matched and connected with the antibacterial substrate layer, and polishing the tops of the core layer and the antibacterial substrate layer to be smooth;
s3, preparing an antibacterial coating layer;
and S4, spraying the antibacterial coating layer on two sides of the antibacterial base layer by using external equipment, and finally filling the antibacterial coating layer in the thinning grooves on the two sides of the antibacterial base layer until the two sides of the antibacterial base layer are flush.
The preparation process of the antibacterial coating layer is as follows: heating Cu, Ag and rare earth elements to form a mixed solution, adding a binder into the mixed solution, and fully and uniformly stirring; smelting the raw materials in a smelting crucible, and preparing the smelted molten steel into spherical powder with the particle size of 1-30 microns through high-pressure supersonic nitrogen atomization; powder reduction annealing: under the protection of hydrogen, reducing and annealing the powder to control the oxygen content in the powder to be below 0.4 wt%, wherein the annealing temperature is 200-500 ℃; spraying the 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 the spraying driving gas is a mixed gas of nitrogen, hydrogen and helium; heating the glass by adopting electromagnetic waves above 350kHz, wherein the heating temperature is 1050-1200 ℃; heating the surface of the antibacterial substrate layer in the last step to 600-800 ℃ by adopting electromagnetic waves of 20-50kHz, and carrying out air cooling after heat preservation; and (5) cold rolling to obtain a finished product.
The invention has the beneficial effects that: according to the stainless steel, the elastic core layer is filled in the stainless steel, and the vertical thinning groove on the outer side is matched, so that the stainless steel has very good toughness, and meanwhile, the antibacterial base layer and the sprayed antibacterial coating layer are met, so that the prepared cutter has a very good antibacterial effect, and the antibacterial service life is greatly prolonged.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims (4)

1.一种高强韧抗菌刀具用不锈钢及其制备方法，其特征在于：包括采用奥氏体抗菌不锈钢制成的抗菌基底层，抗菌基底层自上而下开设一个填充腔，填充腔内填充具有韧性的芯层，在抗菌基底层的外侧两面垂直开设一条以上的减薄槽，并在抗菌基底层两侧面以及减薄槽内喷涂抗菌涂覆层，使得抗菌基底层两侧面分别形成抗菌面。1. a kind of high-strength antibacterial knife stainless steel and preparation method thereof, is characterized in that: comprise the antibacterial base layer that adopts austenitic antibacterial stainless steel to make, the antibacterial base layer opens a filling cavity from top to bottom, and the filling cavity is filled with For the tough core layer, one or more thinning grooves are vertically opened on both sides of the antibacterial base layer, and an antibacterial coating layer is sprayed on both sides of the antibacterial base layer and in the thinning groove, so that the two sides of the antibacterial base layer respectively form antibacterial surfaces. 2.根据权利要求1所述的高强韧抗菌刀具用不锈，其特征在于：芯层采用具有高韧性的金属材料，其上端面与抗菌基底层上端面平齐。2 . The high-strength and tough antibacterial tool stainless according to claim 1 , wherein the core layer is made of a metal material with high toughness, and its upper end surface is flush with the upper end surface of the antibacterial base layer. 3 . 3.一种高强韧抗菌刀具用不锈钢的制备方法，其特征在于，包括以下几个步骤：3. a preparation method of stainless steel for high-strength antibacterial cutting tools, characterized in that, comprising the following steps: S1、选用奥氏体抗菌不锈钢作为抗菌基底层，利用打磨设备打磨至需要的厚度以及尺寸，利用开槽机在抗菌基底层顶部开设一个填充腔；S1. Select austenitic antibacterial stainless steel as the antibacterial base layer, use grinding equipment to grind to the required thickness and size, and use a slotting machine to open a filling cavity on the top of the antibacterial base layer; S2、将具有弹性性能的芯层加工成与填充腔相同的体积，利用机械设备将芯层打入至填充腔内，使其与抗菌基底层紧配连接，并对芯层以及抗菌基底层的顶部进行打磨至平整；S2. Process the core layer with elastic properties into the same volume as the filling cavity, and use mechanical equipment to drive the core layer into the filling cavity, so that it is tightly connected with the antibacterial base layer, and the core layer and the antibacterial base layer are tightly connected. The top is ground to be flat; S3、准备抗菌涂覆层；S3, prepare the antibacterial coating; S4、将抗菌涂覆层利用外部设备喷涂在抗菌基底层的两侧面，并最终填充满抗菌基底层两侧的减薄槽内，直至抗菌基底层两侧面平齐。S4, the antibacterial coating layer is sprayed on both sides of the antibacterial base layer by external equipment, and finally fills the thinning grooves on both sides of the antibacterial base layer until the two sides of the antibacterial base layer are flush. 4.根据权利要求3所述的高强韧抗菌刀具用不锈钢的制备方法，其特征在于：抗菌涂覆层制备过程如下：4. the preparation method of high-strength antibacterial knife stainless steel according to claim 3, is characterized in that: the preparation process of antibacterial coating is as follows: 步骤一、将Cu、Ag以及稀土元素加热形成混合液，再其内部放入粘结剂，充分搅拌均匀；Step 1. Heat Cu, Ag and rare earth elements to form a mixed solution, then put a binder into it, and fully stir it evenly; 步骤二、将原料在熔炼坩埚内进行熔炼，将经过熔炼的钢液通过高压超音速氮气雾化制备成粒径为1μm～30μm的球形粉末；Step 2, smelting the raw materials in the smelting crucible, and preparing the molten steel through high-pressure supersonic nitrogen atomization into spherical powder with a particle size of 1 μm to 30 μm; 步骤三、粉末还原退火：在氢气保护下对上述粉末进行还原退火控制粉末中的氧含量在0.4wt％以下，退火温度为200℃-500℃；Step 3, powder reduction annealing: perform reduction annealing on the above powder under the protection of hydrogen to control the oxygen content in the powder to be below 0.4wt%, and the annealing temperature to be 200°C-500°C; 步骤四、将粉末在碳钢层基板表面进行喷射以制备碳钢基板与抗菌不锈钢覆层之间的接触界面，喷射驱动气体为氮气、氢气、氦气的混合气体；Step 4, spray the powder on the surface of the carbon steel layer substrate to prepare the contact interface between the carbon steel substrate and the antibacterial stainless steel coating, and the spray driving gas is a mixed gas of nitrogen, hydrogen and helium; 步骤五、采用350kHz以上的电磁波对其进行加热，加热温度为1050℃～1200℃；Step 5, using electromagnetic waves above 350kHz to heat it, and the heating temperature is 1050℃～1200℃; 步骤六、采用20-50kHz的电磁波将上一步骤中的抗菌基底层表面加热至600摄氏度-800摄氏度，保温后空冷；Step 6, using electromagnetic waves of 20-50kHz to heat the surface of the antibacterial base layer in the previous step to 600 degrees Celsius-800 degrees Celsius, and air-cooling after heat preservation; 步骤七、冷轧为成品。Step 7: Cold rolling is finished product.
CN202111472302.5A 2021-12-04 2021-12-04 Stainless steel for high-strength and high-toughness antibacterial cutters and preparation method thereof Active CN114214618B (en)

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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
US20100233326A1 (en) * 2006-05-17 2010-09-16 Ishida Co., Ltd. Antibacterial Laminate
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
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

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US20100233326A1 (en) * 2006-05-17 2010-09-16 Ishida Co., Ltd. Antibacterial Laminate
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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