WO2019015143A1 - Method for performing corrosion resistance processing on surface of metal by using laser, and application thereof - Google Patents

Method for performing corrosion resistance processing on surface of metal by using laser, and application thereof Download PDF

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Publication number
WO2019015143A1
WO2019015143A1 PCT/CN2017/106243 CN2017106243W WO2019015143A1 WO 2019015143 A1 WO2019015143 A1 WO 2019015143A1 CN 2017106243 W CN2017106243 W CN 2017106243W WO 2019015143 A1 WO2019015143 A1 WO 2019015143A1
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Prior art keywords
laser
metal
corrosion
laser processing
processed
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PCT/CN2017/106243
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French (fr)
Chinese (zh)
Inventor
陶沙
赵晓杰
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英诺激光科技股份有限公司
江苏微纳激光应用技术研究院有限公司
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Publication of WO2019015143A1 publication Critical patent/WO2019015143A1/en

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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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F15/00—Other methods of preventing corrosion or incrustation

Definitions

  • the invention belongs to the field of laser processing, and particularly relates to a method for performing anti-corrosion treatment on a metal surface by using a laser and an application thereof.
  • the instruments or tools in the biomedical field are generally corrosive liquids, so their corrosion resistance is very high, especially metal or alloy tools, which are easily corroded by chemicals, medical tools or instruments. Corrosion, resulting in a greatly reduced service life, the use of tools after corrosion can cause unpredictable medical accidents. Therefore, in order to improve the service life of medical tools or instruments and reduce unnecessary medical accidents, there is an urgent need for a method that can provide corrosion resistance.
  • the traditional method is to coat the surface, but the coating will fall off with use and is a non-permanent anti-corrosion treatment. Therefore, it is an urgent task to find a method for permanently anti-corrosion treatment on a metal surface by using a laser.
  • the technical problem to be solved by the present invention is to provide a method for performing a permanent anti-corrosion treatment on a metal surface by using a laser with a high processing speed and good consistency in view of the deficiencies of the prior art.
  • the present invention discloses a method for performing anti-corrosion treatment on a metal surface by using a laser, and the method steps are as follows:
  • the laser-scanned workpiece forms a corrosion-resistant micro/nano structure on the surface of the material.
  • the metal part to be processed is a metal or an alloy.
  • the laser processing has a wavelength of 343 to 1064 nm.
  • the laser processing has a pulse width of less than 1 ns.
  • the pulse width of the laser processing is ps/fs level.
  • the frequency of the laser processing is 10 MHz or less.
  • the invention also discloses the application of any of the methods described in the field of medical devices for anti-corrosion treatment, the micro-nano structure obtained by the method can prevent or delay the corrosion of the corrosive liquid of the medical device during use.
  • the invention also discloses the application of any of the methods in the field of permanent corrosion protection of metal and alloy surfaces.
  • the above technical solution of the present invention has the following advantages over the prior art: it provides a novel method for performing anti-corrosion treatment on the surface of a material by using a laser, which has the advantages of fastness, consistency, and wide application to various metals and alloys. Features such as materials.
  • the surface of the material treated by the method has a micro/nano scale structure, which can effectively enhance the corrosion resistance of the surface of the material and prolong the life cycle of the component.
  • Embodiment 1 This embodiment discloses a method of performing a corrosion-resistant treatment on a metal surface using a laser, the method steps being as follows:
  • the wavelength of laser processing is 355 nm
  • the pulse width is ps or fs level
  • the frequency is 100 kHz
  • the power is 1w.
  • the laser processing system is turned on after selecting the processing parameters as needed, so that the laser scans the workpiece according to the set parameters and paths.
  • the material is formed by laser processing to form a micro-nano structure.
  • the processed material is placed in an etching solution for treatment to test its corrosion resistance
  • the corrosion test may be selected from a salt spray test, an acid or alkaline corrosion test, and is related to the material properties of the workpiece.
  • the general metal is salt spray test or physiological saline soaking.
  • the corroded material is cleaned, and it is preferably washed with water after cleaning with alcohol.
  • the magnesium alloy workpiece was not corroded after the test.
  • the embodiment also discloses the application of the method to the anti-corrosion treatment in the field of medical devices, and the micro-nano structure obtained by the method can prevent the corrosion of the corrosive liquid by the medical device.
  • This embodiment also discloses the application of the method in the field of permanent corrosion protection of metal and alloy surfaces.
  • Embodiment 2 This embodiment discloses a method of performing a corrosion-resistant treatment on a metal surface using a laser, the method steps being as follows:
  • the workpiece to be processed is placed on the processing platform, and the workpiece to be processed is a titanium alloy material.
  • the wavelength of laser processing is 532 nm
  • the pulse width is ps or fs level
  • the frequency is 100 kHz
  • the power is 1w.
  • the laser processing system is turned on after selecting the processing parameters as needed, so that the laser scans the workpiece according to the set parameters and paths.
  • the material is formed by laser processing to form a micro-nano structure.
  • the processed material is placed in an etching solution for treatment to test its corrosion resistance
  • the corrosion test may be selected from a salt spray test, an acid or alkaline corrosion test, and is related to the material properties of the workpiece.
  • the general metal is salt spray test or physiological saline soaking.
  • the corroded material is cleaned, and it is preferably washed with water after cleaning with alcohol.
  • the titanium alloy workpiece was not corroded after the test.
  • the embodiment also discloses the application of the method to the anti-corrosion treatment in the field of medical devices, and the micro-nano structure obtained by the method can prevent the corrosion of the corrosive liquid by the medical device.
  • This embodiment also discloses the application of the method in the field of permanent corrosion protection of metal and alloy surfaces.
  • Embodiment 3 This embodiment discloses a method of performing a corrosion-resistant treatment on a metal surface using a laser, the method steps being as follows:
  • the wavelength of laser processing is 1064 nm
  • the pulse width is ps or fs level
  • the frequency is 100 kHz
  • the power is 1w.
  • the laser processing system is turned on after selecting the processing parameters as needed, so that the laser scans the workpiece according to the set parameters and paths.
  • the material is formed by laser processing to form a micro-nano structure.
  • the processed material is placed in an etching solution for treatment to test its corrosion resistance
  • the corrosion test may be selected from a salt spray test, an acid or alkaline corrosion test, and is related to the material properties of the workpiece.
  • the general metal is salt spray test or physiological saline soaking.
  • the corroded material is cleaned, and it is preferably washed with water after cleaning with alcohol.
  • the titanium-nickel alloy workpiece was not corroded after the test.
  • the embodiment also discloses the application of the method to the anti-corrosion treatment in the field of medical devices, and the micro-nano structure obtained by the method can prevent the corrosion of the corrosive liquid by the medical device.
  • This embodiment also discloses the application of the method in the field of permanent corrosion protection of metal and alloy surfaces.

Abstract

Disclosed is a method for performing corrosion resistance processing on the surface of metal by using a laser, comprising the following steps: a) taking a metal piece to be processed and placing same on a processing platform; b) setting the position of a laser focus and parameters of laser processing according to surface characteristics of the piece to be processed; and c) scanning, by means of a laser, the piece to be processed so as to form a corrosion resistance micro-nano structure on the surface of the material. Also disclosed are the application of the method in the field of medical instruments for corrosion resistance processing, and the application of the method in the field of permanent corrosion resistance of the surfaces of metal and an alloy.

Description

利用激光在金属表面进行抗腐蚀处理的方法及其应用  Method for anti-corrosion treatment on metal surface by laser and its application
技术领域Technical field
本发明属于激光加工领域，具体涉及一种利用激光在金属表面进行抗腐蚀处理的方法及其应用。The invention belongs to the field of laser processing, and particularly relates to a method for performing anti-corrosion treatment on a metal surface by using a laser and an application thereof.
背景技术Background technique
生物医疗领域的器械或者工具，其工作环境一般是具有腐蚀性的液体，因此对其抗腐蚀性能要求很高，尤其是金属或者合金工具，很容易收到化学药品的腐蚀，医疗工具或器械的腐蚀，导致其使用寿命大大降低，腐蚀后的工具使用会造成不可预估的医疗事故。因此提高医疗工具或器械的使用寿命、降低不必要的医疗事故，急需一种可以提供其抗腐蚀特性的方法。传统的方法是再其表面进行镀膜，但是镀膜会随着使用发生脱落，是一种非永久性抗腐蚀处理。因此，寻找一种利用激光在金属表面进行永久抗腐蚀处理的方法，是目前刻不容缓的事情。The instruments or tools in the biomedical field are generally corrosive liquids, so their corrosion resistance is very high, especially metal or alloy tools, which are easily corroded by chemicals, medical tools or instruments. Corrosion, resulting in a greatly reduced service life, the use of tools after corrosion can cause unpredictable medical accidents. Therefore, in order to improve the service life of medical tools or instruments and reduce unnecessary medical accidents, there is an urgent need for a method that can provide corrosion resistance. The traditional method is to coat the surface, but the coating will fall off with use and is a non-permanent anti-corrosion treatment. Therefore, it is an urgent task to find a method for permanently anti-corrosion treatment on a metal surface by using a laser.
发明内容Summary of the invention
为此，本发明要解决的技术问题在于，针对现有技术的不足，提供一种加工速度快、一致性好，利用激光在金属表面进行永久性抗腐蚀处理的方法。To this end, the technical problem to be solved by the present invention is to provide a method for performing a permanent anti-corrosion treatment on a metal surface by using a laser with a high processing speed and good consistency in view of the deficiencies of the prior art.
为解决上述技术问题，本发明公开了一种利用激光在金属表面进行抗腐蚀处理的方法，所述方法步骤如下： In order to solve the above technical problems, the present invention discloses a method for performing anti-corrosion treatment on a metal surface by using a laser, and the method steps are as follows:
a）取待加工金属件置于加工平台上；a) taking the metal parts to be processed on the processing platform;
b）根据加工件表面特性设置激光焦点位置和激光加工的参数；b) setting the laser focus position and the parameters of the laser processing according to the surface characteristics of the workpiece;
c）通过激光扫描加工件，在材料表面形成抗腐蚀的微纳结构。c) The laser-scanned workpiece forms a corrosion-resistant micro/nano structure on the surface of the material.
优选的，所述待加工金属件为金属或合金。Preferably, the metal part to be processed is a metal or an alloy.
优选的，所述激光加工的波长为343 ~ 1064 nm。 Preferably, the laser processing has a wavelength of 343 to 1064 nm.
优选的，所述激光加工的脉宽为小于1ns。Preferably, the laser processing has a pulse width of less than 1 ns.
优选的，所述激光加工的脉宽为ps/fs级别。 Preferably, the pulse width of the laser processing is ps/fs level.
优选的，所述激光加工的频率为10MHz以下。Preferably, the frequency of the laser processing is 10 MHz or less.
本发明还公开了任一项所述方法在医疗器械领域中进行抗腐蚀处理的应用，所述方法得到的微纳结构可以防止或延缓医疗器械在使用过程中受腐蚀液体的腐蚀。The invention also discloses the application of any of the methods described in the field of medical devices for anti-corrosion treatment, the micro-nano structure obtained by the method can prevent or delay the corrosion of the corrosive liquid of the medical device during use.
本发明还公开了任一项所述方法在金属、合金表面永久抗腐蚀处理领域中的应用。The invention also discloses the application of any of the methods in the field of permanent corrosion protection of metal and alloy surfaces.
本发明的上述技术方案相比现有技术具有以下优点：提供了一种新型的利用激光在材料表面进行抗腐蚀处理的方法，该方法具有快速、一致性好、广泛适用于各种金属及合金材料等特点。通过该方法处理的材料表面具有微/纳尺度的结构，该结构能有效增强材料表面的抗腐蚀性能，延长部件的使用周期。The above technical solution of the present invention has the following advantages over the prior art: it provides a novel method for performing anti-corrosion treatment on the surface of a material by using a laser, which has the advantages of fastness, consistency, and wide application to various metals and alloys. Features such as materials. The surface of the material treated by the method has a micro/nano scale structure, which can effectively enhance the corrosion resistance of the surface of the material and prolong the life cycle of the component.
具体实施方式Detailed ways
实施例Example
实施例1 本实施公开了一种利用激光在金属表面进行抗腐蚀处理的方法的方法，所述方法步骤如下：Embodiment 1 This embodiment discloses a method of performing a corrosion-resistant treatment on a metal surface using a laser, the method steps being as follows:
1、将待加工件放置于加工平台，待加工件为镁合金材料。1. Place the parts to be processed on the processing platform, and the parts to be processed are magnesium alloy materials.
3、根据镁合金材料特性设置激光焦点位置和激光加工参数，3. Set the laser focus position and laser processing parameters according to the characteristics of the magnesium alloy material.
设置激光加工参数如下：Set the laser processing parameters as follows:
激光加工的波长为355nm；The wavelength of laser processing is 355 nm;
脉宽为ps或fs级别；The pulse width is ps or fs level;
频率为100kHz；The frequency is 100 kHz;
功率为1w。The power is 1w.
根据需要选定加工参数后开启激光加工系统，使得激光按照设定参数和路径对工件进行扫描。The laser processing system is turned on after selecting the processing parameters as needed, so that the laser scans the workpiece according to the set parameters and paths.
4、通过激光加工在材料表明形成微纳结构。4. The material is formed by laser processing to form a micro-nano structure.
5、将加工后的材料置于腐蚀液中进行处理，检验其抗腐蚀特性；5. The processed material is placed in an etching solution for treatment to test its corrosion resistance;
其中腐蚀测试可选择盐雾试验、酸性或碱性腐蚀试验，与加工件的材料特性有关。如一般金属采用盐雾试验或生理盐水浸泡等。The corrosion test may be selected from a salt spray test, an acid or alkaline corrosion test, and is related to the material properties of the workpiece. For example, the general metal is salt spray test or physiological saline soaking.
6、对腐蚀后的材料进行清洗，其中，优选采用清水清洗后酒精擦拭。6. The corroded material is cleaned, and it is preferably washed with water after cleaning with alcohol.
7、测试后镁合金工件未被腐蚀。 7. The magnesium alloy workpiece was not corroded after the test.
本实施例还公开了所述方法在医疗器械领域中进行抗腐蚀处理的应用，所述方法得到的微纳结构可以防止医疗器械对腐蚀液体的腐蚀。The embodiment also discloses the application of the method to the anti-corrosion treatment in the field of medical devices, and the micro-nano structure obtained by the method can prevent the corrosion of the corrosive liquid by the medical device.
本实施例还公开了所述方法在金属、合金表面永久抗腐蚀处理领域中的应用。This embodiment also discloses the application of the method in the field of permanent corrosion protection of metal and alloy surfaces.
实施例2 本实施公开了一种利用激光在金属表面进行抗腐蚀处理的方法的方法，所述方法步骤如下：Embodiment 2 This embodiment discloses a method of performing a corrosion-resistant treatment on a metal surface using a laser, the method steps being as follows:
1、将待加工件放置于加工平台，待加工件为钛合金材料。1. The workpiece to be processed is placed on the processing platform, and the workpiece to be processed is a titanium alloy material.
3、根据钛合金材料特性设置激光焦点位置和激光加工参数，3. Set the laser focus position and laser processing parameters according to the characteristics of the titanium alloy material.
设置激光加工参数如下：Set the laser processing parameters as follows:
激光加工的波长为532nm；The wavelength of laser processing is 532 nm;
脉宽为ps或fs级别；The pulse width is ps or fs level;
频率为100kHz；The frequency is 100 kHz;
功率为1w。The power is 1w.
根据需要选定加工参数后开启激光加工系统，使得激光按照设定参数和路径对工件进行扫描。The laser processing system is turned on after selecting the processing parameters as needed, so that the laser scans the workpiece according to the set parameters and paths.
4、通过激光加工在材料表明形成微纳结构。4. The material is formed by laser processing to form a micro-nano structure.
5、将加工后的材料置于腐蚀液中进行处理，检验其抗腐蚀特性；5. The processed material is placed in an etching solution for treatment to test its corrosion resistance;
其中腐蚀测试可选择盐雾试验、酸性或碱性腐蚀试验，与加工件的材料特性有关。如一般金属采用盐雾试验或生理盐水浸泡等。The corrosion test may be selected from a salt spray test, an acid or alkaline corrosion test, and is related to the material properties of the workpiece. For example, the general metal is salt spray test or physiological saline soaking.
6、对腐蚀后的材料进行清洗，其中，优选采用清水清洗后酒精擦拭。6. The corroded material is cleaned, and it is preferably washed with water after cleaning with alcohol.
7、测试后钛合金工件未被腐蚀。7. The titanium alloy workpiece was not corroded after the test.
本实施例还公开了所述方法在医疗器械领域中进行抗腐蚀处理的应用，所述方法得到的微纳结构可以防止医疗器械对腐蚀液体的腐蚀。The embodiment also discloses the application of the method to the anti-corrosion treatment in the field of medical devices, and the micro-nano structure obtained by the method can prevent the corrosion of the corrosive liquid by the medical device.
本实施例还公开了所述方法在金属、合金表面永久抗腐蚀处理领域中的应用。This embodiment also discloses the application of the method in the field of permanent corrosion protection of metal and alloy surfaces.
实施例3 本实施公开了一种利用激光在金属表面进行抗腐蚀处理的方法的方法，所述方法步骤如下：Embodiment 3 This embodiment discloses a method of performing a corrosion-resistant treatment on a metal surface using a laser, the method steps being as follows:
1、将待加工件放置于加工平台，待加工件为钛镍合金材料。1. Place the parts to be processed on the processing platform, and the parts to be processed are titanium-nickel alloy materials.
3、根据钛镍合金材料特性设置激光焦点位置和激光加工参数，3. Set the laser focus position and laser processing parameters according to the characteristics of the titanium-nickel alloy material.
设置激光加工参数如下：Set the laser processing parameters as follows:
激光加工的波长为1064nm；The wavelength of laser processing is 1064 nm;
脉宽为ps或fs级别；The pulse width is ps or fs level;
频率为100kHz；The frequency is 100 kHz;
功率为1w。The power is 1w.
根据需要选定加工参数后开启激光加工系统，使得激光按照设定参数和路径对工件进行扫描。The laser processing system is turned on after selecting the processing parameters as needed, so that the laser scans the workpiece according to the set parameters and paths.
4、通过激光加工在材料表明形成微纳结构。4. The material is formed by laser processing to form a micro-nano structure.
5、将加工后的材料置于腐蚀液中进行处理，检验其抗腐蚀特性；5. The processed material is placed in an etching solution for treatment to test its corrosion resistance;
其中腐蚀测试可选择盐雾试验、酸性或碱性腐蚀试验，与加工件的材料特性有关。如一般金属采用盐雾试验或生理盐水浸泡等。The corrosion test may be selected from a salt spray test, an acid or alkaline corrosion test, and is related to the material properties of the workpiece. For example, the general metal is salt spray test or physiological saline soaking.
6、对腐蚀后的材料进行清洗，其中，优选采用清水清洗后酒精擦拭。6. The corroded material is cleaned, and it is preferably washed with water after cleaning with alcohol.
7、测试后钛镍合金工件未被腐蚀。7. The titanium-nickel alloy workpiece was not corroded after the test.
本实施例还公开了所述方法在医疗器械领域中进行抗腐蚀处理的应用，所述方法得到的微纳结构可以防止医疗器械对腐蚀液体的腐蚀。The embodiment also discloses the application of the method to the anti-corrosion treatment in the field of medical devices, and the micro-nano structure obtained by the method can prevent the corrosion of the corrosive liquid by the medical device.
本实施例还公开了所述方法在金属、合金表面永久抗腐蚀处理领域中的应用。This embodiment also discloses the application of the method in the field of permanent corrosion protection of metal and alloy surfaces.
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。It is apparent that the above-described embodiments are merely illustrative of the examples, and are not intended to limit the embodiments. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Obvious changes or variations resulting therefrom are still within the scope of the invention.

Claims (8)

  1. 一种利用激光在金属表面进行抗腐蚀处理的方法，其特征在于，所述方法步骤如下： A method for performing anti-corrosion treatment on a metal surface by using a laser, characterized in that the method steps are as follows:
    a）取待加工金属件置于加工平台上；a) taking the metal parts to be processed on the processing platform;
    b）根据加工件表面特性设置激光焦点位置和激光加工的参数；b) setting the laser focus position and the parameters of the laser processing according to the surface characteristics of the workpiece;
    c）通过激光扫描加工件，在材料表面形成抗腐蚀的微纳结构。 c) The laser-scanned workpiece forms a corrosion-resistant micro/nano structure on the surface of the material.
  2. 如权利要求1所述的方法，其特征在于，所述待加工金属件为金属或合金。The method of claim 1 wherein said metal part to be processed is a metal or an alloy.
  3. 如权利要求2所述的方法，其特征在于，所述激光加工的波长为343~1064 nm。The method of claim 2 wherein said laser processing has a wavelength of 343 to 1064 nm.
  4. 如权利要求3所述的方法，其特征在于，所述激光加工的脉宽为小于1ns。The method of claim 3 wherein said laser processing has a pulse width of less than 1 ns.
  5. 如权利要求4所述的方法，其特征在于，所述激光加工的脉宽为ps/fs级别。The method of claim 4 wherein said laser processing has a pulse width of the ps/fs level.
  6. 如权利要求5所述的方法，其特征在于，所述激光加工的频率为10MHz以下。The method of claim 5 wherein said laser processing has a frequency of less than 10 MHz.
  7. 如权利要求1-6任一项所述方法在医疗器械领域中进行抗腐蚀处理的应用，其特征在于，所述方法得到的微纳结构可以防止或延缓医疗器械在使用过程中受腐蚀液体的腐蚀。The use of the method according to any one of claims 1 to 6 for anti-corrosion treatment in the field of medical devices, characterized in that the micro-nano structure obtained by the method can prevent or delay the corrosive liquid of the medical device during use. corrosion.
  8. 如权利要求1-6任一项所述方法在金属、合金表面永久抗腐蚀处理领域中的应用。Use of the method according to any of claims 1-6 in the field of permanent corrosion protection of metal and alloy surfaces.
PCT/CN2017/106243 2017-07-17 2017-10-16 Method for performing corrosion resistance processing on surface of metal by using laser, and application thereof WO2019015143A1 (en)

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