WO2012136127A1 - Composite coating for preventing marine biofouling and spraying method thereof - Google Patents

Composite coating for preventing marine biofouling and spraying method thereof Download PDF

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Publication number
WO2012136127A1
WO2012136127A1 PCT/CN2012/073465 CN2012073465W WO2012136127A1 WO 2012136127 A1 WO2012136127 A1 WO 2012136127A1 CN 2012073465 W CN2012073465 W CN 2012073465W WO 2012136127 A1 WO2012136127 A1 WO 2012136127A1
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spraying
coating
composite
thickness
transition layer
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PCT/CN2012/073465
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French (fr)
Chinese (zh)
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周建奇
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美时发有限公司
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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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment

Definitions

  • the invention relates to a spraying method, in particular to a composite coating for preventing marine biological fouling and a spraying method thereof, and belongs to the technical field of spraying.
  • Marine hulls and components of ships navigating in the ocean are highly polluted by marine organisms and require regular cleaning of marine fouling.
  • the commonly used antifouling treatment methods are painting coatings, including toxic antifouling coatings, non-toxic antifouling coatings, and low surface energy coatings for antifouling, but this method is used for antifouling treatment, which has short period of effect and requires frequent antifouling treatment. Processing has caused a waste of manpower and material resources.
  • copper and copper alloy methods for anti-fouling Copper and copper alloys release copper ions due to their own corrosion in seawater environment. They are often used in ship structures to prevent the growth of marine organisms. However, due to weak electrical insulation measures and materials, they cannot Plays a good antifouling effect.
  • Supersonic flame (HVOF) spraying technology is a kind of thermal spraying technology that appeared in the 1980s. It is a practical technology developed on the basis of other flame spraying technologies, and has been applied and promoted in the industrial field.
  • the interfacial bonding strength of cermet coatings prepared by supersonic flame (HVOF) spraying technology is much higher than that of other thermal spraying interfaces, and due to the high flame speed, low temperature and high bonding strength of the coating due to the supersonic flame (HVOF) spraying technology.
  • the coating composition does not decompose, the process is simple and convenient, and the like, and is particularly suitable for the spraying of cermet, so that HVOF technology has been widely used in cermet spraying.
  • supersonic has some advantages, its deposition rate and deposition efficiency are relatively low and relatively high in cost.
  • Cold spray technology also known as cold aerodynamic spraying, refers to a method in which a high-speed solid particle having a certain plasticity collides with a substrate and is deposited by a strong plastic deformation to form a coating.
  • the process utilizes a comprehensive selection of particle temperatures, velocities and sizes to allow spraying at the lowest possible temperature.
  • the powder particles are accelerated by the supersonic flow at a temperature lower than the melting point of the material, and thus the particles forming the coating are solid, thereby avoiding the harmful effects in the conventional thermal spraying method, such as high temperature oxidation and evaporation. Dissolution, crystallization, residual stress, stripping, gas release, and other common problems can be minimized or eliminated.
  • the cold-sprayed particles are not melted, the thermal influence of the coating on the substrate is small, the thermal stress of the coating and the substrate is reduced, and the stress between the cold-sprayed layers is low, and mainly the compressive stress. Conducive to the deposition of thicker coatings.
  • the underwater hull and components of ships sailing in the ocean are very serious, and the traditional method can not achieve the purpose of anti-fouling treatment, and the traditional method has short anti-pollution period and is prepared by supersonic flame spraying.
  • the transition layer and the insulating layer have strong bonding force with the substrate, and the bonding strength is greater than 35 MPa.
  • the cold spraying technology is used, the copper is not oxidized, the antifouling effect of the copper can be ensured, and the thermal spraying technology and the cold spraying technology are rationally utilized. Can overcome the shortcomings of traditional methods and achieve remarkable results.
  • the object of the present invention is to provide a composite coating for preventing marine biofouling and a spraying method thereof, which adopts supersonic flame spraying technology and cold spraying technology to surface-treat the structure of the original component to achieve good marine biological antifouling. effect.
  • a composite coating for preventing marine biofouling the composite coating consists of a transition layer: a nickel-chromium layer of 80-100 ⁇ m, a composite insulating coating of alumina and titanium oxide of 180-250 ⁇ m, and a copper anti-fouling coating of 800-1000 ⁇ m.
  • the layer composition has a total coating thickness of 1000 to 1500 ⁇ m.
  • Another object of the present invention is to provide a spraying method for the above composite coating, the technical solution of which is:
  • a spraying method for a composite coating for preventing marine biofouling comprises the following steps:
  • the prepared transition layer and insulating layer have strong bonding force with the substrate, and the bonding strength is greater than 35 MPa.
  • the composite coating of the designed transition layer, the insulating layer and the antifouling functional layer can electrically insulate the anti-fouling functional coating between the metal substrates and fully exert the antifouling effect.
  • Scope of application It can be used for anti-fouling of underwater structures of ships, such as hull, submarine grille, propeller, etc.
  • a composite coating for preventing marine biofouling and a spraying method thereof comprising the following steps:
  • abrasive blasting is used to remove oxide layer and other impurities on the surface of the seafloor grid to reach Sa2.5 level or higher;
  • Supersonic flame spraying a supersonic flame spraying method is used to spray a nickel-chromium (Ni-Cr) transition layer on a sandblasted metal substrate, spraying a thickness of 80 ⁇ m, and then spraying aluminum oxide and oxidizing on the transition layer. Titanium composite insulating coating, spraying thickness is 250 ⁇ m;
  • a spraying method for a composite coating for preventing marine biofouling comprises the following steps:
  • Supersonic flame spraying a supersonic flame spraying method is used to spray a nickel-chromium (Ni-Cr) transition layer on a blasted metal substrate, spraying a thickness of 100 ⁇ m, and then spraying aluminum oxide and oxidizing on the transition layer. Titanium composite insulating coating with a thickness of 180 ⁇ m;
  • a spraying method for a composite coating for preventing marine biofouling comprises the following steps:

Abstract

A composite coating for preventing marine biofouling and a preparation method thereof. The composite coating consists of a nickel-chromium transition layer of 80 μm to 100 μm, a composite insulation coating of aluminum oxide and titanium oxide of 180 μm to 250 μm, and a red copper antifouling coating of 800 μm to 1000 μm. The total thickness of the coating is 100 μm to 1500 μm. The method comprises: spraying the nickel-chromium transition layer and the composite insulation coating through a High Velocity Oxygen Fuel (HVOF) spraying method, and spraying the red copper coating through a cold spraying method.

Description

一种防止海洋生物污损的复合涂层及其喷涂方法 Composite coating for preventing marine biological fouling and spraying method thereof
技术领域Technical field
本发明涉及一种喷涂方法，具体涉及一种防止海洋生物污损的复合涂层及其喷涂方法，属于喷涂技术领域。The invention relates to a spraying method, in particular to a composite coating for preventing marine biological fouling and a spraying method thereof, and belongs to the technical field of spraying.
背景技术Background technique
在海洋中航行的船舶的水下船体及构件海洋生物污损十分严重，需要定期清洁海洋污损。常用的防污处理方法是涂刷涂料，包括有毒防污涂料、无毒防污涂料、低表面能涂料防污，但采用该方法进行防污处理，其期效短，需要频繁的进行防污处理，造成了人力、物力的浪费。也有采用铜及铜合金的方法防污，铜及铜合金因其自身在海水环境下腐蚀释放出铜离子，常用于船舶结构中防止海洋生物生长，但由于电绝缘措施不力以及材料自身原因而不能起到好的防污效果。Marine hulls and components of ships navigating in the ocean are highly polluted by marine organisms and require regular cleaning of marine fouling. The commonly used antifouling treatment methods are painting coatings, including toxic antifouling coatings, non-toxic antifouling coatings, and low surface energy coatings for antifouling, but this method is used for antifouling treatment, which has short period of effect and requires frequent antifouling treatment. Processing has caused a waste of manpower and material resources. There are also copper and copper alloy methods for anti-fouling. Copper and copper alloys release copper ions due to their own corrosion in seawater environment. They are often used in ship structures to prevent the growth of marine organisms. However, due to weak electrical insulation measures and materials, they cannot Plays a good antifouling effect.
超音速火焰(HVOF)喷涂技术是20世纪80年度出现的一种热喷涂技术，是在其它火焰喷涂技术基础上发展起来的一种实用型技术,已经在工业领域中获得了应用和推广。由超音速火焰(HVOF)喷涂技术制备的金属陶瓷涂层界面结合强度较其它热喷涂界面高得多,同时由于超音速火焰(HVOF)喷涂技术火焰速度快、温度低、涂层结合强度高，涂层成分不会产生分解，工艺简单方便等优点，特别适合于金属陶瓷的喷涂，使得HVOF技术在金属陶瓷喷涂中获得了广泛的应用。虽然超音速具有一些优点，但是其沉积速度和沉积效率还是相对较低，成本相对较高。 Supersonic flame (HVOF) spraying technology is a kind of thermal spraying technology that appeared in the 1980s. It is a practical technology developed on the basis of other flame spraying technologies, and has been applied and promoted in the industrial field. The interfacial bonding strength of cermet coatings prepared by supersonic flame (HVOF) spraying technology is much higher than that of other thermal spraying interfaces, and due to the high flame speed, low temperature and high bonding strength of the coating due to the supersonic flame (HVOF) spraying technology. The coating composition does not decompose, the process is simple and convenient, and the like, and is particularly suitable for the spraying of cermet, so that HVOF technology has been widely used in cermet spraying. Although supersonic has some advantages, its deposition rate and deposition efficiency are relatively low and relatively high in cost.
冷喷涂技术，又称为冷气动力学喷涂，是指当具有一定塑性的高速固态粒子与基体碰撞后，经过强烈的塑性变形而沉积形成涂层的方法。该工艺利用粒子温度、速度和大小的综合选择，使得在尽可能低的温度下进行喷涂。在冷喷涂工艺中，粉末粒子在低于其材料熔点的温度下，由超声速气流加速，因而形成涂层的粒子为固态，因此可以避免传统热喷涂方法中的有害影响，如：高温氧化、蒸发、溶解、结晶、残余应力、剥离、气体释放和其它常见问题，均可减到最小甚至消除。与热喷涂技术相比，冷喷涂的粒子没有熔化，涂层对基体的热影响很小，使得涂层与基体的热应力减少，并且冷喷涂层层间应力较低，且主要是压应力，有利于沉积较厚的涂层。Cold spray technology, also known as cold aerodynamic spraying, refers to a method in which a high-speed solid particle having a certain plasticity collides with a substrate and is deposited by a strong plastic deformation to form a coating. The process utilizes a comprehensive selection of particle temperatures, velocities and sizes to allow spraying at the lowest possible temperature. In the cold spray process, the powder particles are accelerated by the supersonic flow at a temperature lower than the melting point of the material, and thus the particles forming the coating are solid, thereby avoiding the harmful effects in the conventional thermal spraying method, such as high temperature oxidation and evaporation. Dissolution, crystallization, residual stress, stripping, gas release, and other common problems can be minimized or eliminated. Compared with the thermal spraying technology, the cold-sprayed particles are not melted, the thermal influence of the coating on the substrate is small, the thermal stress of the coating and the substrate is reduced, and the stress between the cold-sprayed layers is low, and mainly the compressive stress. Conducive to the deposition of thicker coatings.
目前海洋中航行的船舶的水下船体及构件海洋生物污损十分严重，采用传统的方法达不到防污处理的目的，而且传统的方法防污期效短，使用超音速火焰喷涂，制备的过渡层和绝缘层，与基体有较强的结合力，结合强度大于35MPa，而采用冷喷涂技术时紫铜不被氧化，能确保紫铜的防污效果，将热喷涂技术和冷喷涂技术合理利用，可以克服传统方法的不足，取得显著的效果。At present, the underwater hull and components of ships sailing in the ocean are very serious, and the traditional method can not achieve the purpose of anti-fouling treatment, and the traditional method has short anti-pollution period and is prepared by supersonic flame spraying. The transition layer and the insulating layer have strong bonding force with the substrate, and the bonding strength is greater than 35 MPa. When the cold spraying technology is used, the copper is not oxidized, the antifouling effect of the copper can be ensured, and the thermal spraying technology and the cold spraying technology are rationally utilized. Can overcome the shortcomings of traditional methods and achieve remarkable results.
发明内容Summary of the invention
本发明的目的在于提供一种防止海洋生物污损的复合涂层及其喷涂方法，该方法采用超音速火焰喷涂技术和冷喷涂技术对原有构件的结构进行表面处理，达到良好海洋生物防污效果。The object of the present invention is to provide a composite coating for preventing marine biofouling and a spraying method thereof, which adopts supersonic flame spraying technology and cold spraying technology to surface-treat the structure of the original component to achieve good marine biological antifouling. effect.
为了实现本发明的目的，本发明所采用的的技术方案是：In order to achieve the object of the present invention, the technical solution adopted by the present invention is:
一种防止海洋生物污损的复合涂层，该复合涂层由过渡层：80～100μm的镍铬层、180～250μm的氧化铝和氧化钛复合绝缘涂层和800～1000μm的紫铜防污涂层组成，涂层总厚度为1000～1500μm。A composite coating for preventing marine biofouling, the composite coating consists of a transition layer: a nickel-chromium layer of 80-100 μm, a composite insulating coating of alumina and titanium oxide of 180-250 μm, and a copper anti-fouling coating of 800-1000 μm. The layer composition has a total coating thickness of 1000 to 1500 μm.
本发明的另一个目的是提供一种上述复合涂层的喷涂方法，其技术方案是：Another object of the present invention is to provide a spraying method for the above composite coating, the technical solution of which is:
一种防止海洋生物污损的复合涂层的喷涂方法，包括如下步骤：A spraying method for a composite coating for preventing marine biofouling comprises the following steps:
（1）金属基材表面预处理：采用磨料喷砂，除去构件表面氧化层和其它杂物，达到Sa2.5级以上；(1) Surface pretreatment of metal substrate: abrasive blasting is used to remove oxide layer and other impurities on the surface of the component to reach Sa2.5 level or higher;
（2）超音速火焰喷涂：采用超音速火焰喷涂方法，在经过喷砂处理的金属基体上喷涂镍铬（Ni-Cr）过渡层，喷涂厚度为80～100μm，然后在过渡层上喷涂氧化铝和氧化钛复合绝缘涂层，喷涂厚度为180～250μm；(2) Supersonic flame spraying: using a supersonic flame spraying method, spraying a nickel-chromium (Ni-Cr) transition layer on a blasted metal substrate, spraying a thickness of 80-100 μm, and then spraying alumina on the transition layer. And titanium oxide composite insulating coating, spraying thickness of 180 ~ 250μm;
（3）冷喷涂：采用冷喷涂方法，在绝缘涂层的表面上喷涂防污涂层紫铜粉末，厚度为800～1000μm。 (3) Cold spraying: The anti-fouling coating copper powder is sprayed on the surface of the insulating coating by a cold spraying method, and the thickness is 800-1000 μm.
本发明相对于现有技术的有益效果是：The beneficial effects of the present invention over the prior art are:
（1）使用超音速火焰喷涂，制备的过渡层和绝缘层，与基体有较强的结合力，结合强度大于35MPa。 (1) Using supersonic flame spraying, the prepared transition layer and insulating layer have strong bonding force with the substrate, and the bonding strength is greater than 35 MPa.
（2）采用冷喷涂技术时紫铜不被氧化，能确保紫铜的防污效果。(2) When the cold spray technique is used, the copper is not oxidized, and the antifouling effect of the copper can be ensured.
（3）设计的过渡层、绝缘层和防污功能层的复合涂层，可使防污功能涂层卢金属基体间电绝缘，充分发挥防污效果。(3) The composite coating of the designed transition layer, the insulating layer and the antifouling functional layer can electrically insulate the anti-fouling functional coating between the metal substrates and fully exert the antifouling effect.
（4）应用范围：可用于船舶水下结构的防污，如船体、海底格栅、螺旋桨等。(4) Scope of application: It can be used for anti-fouling of underwater structures of ships, such as hull, submarine grille, propeller, etc.
具体实施方式detailed description
下面通过实施例对本发明做进一步详细说明，这些实施例仅用来说明本发明，并不限制本发明的范围。The invention is further illustrated by the following examples, which are intended to illustrate the invention and not to limit the scope of the invention.
实施例1 海底格栅的防污Example 1 Antifouling of Submarine Grille
一种防止海洋生物污损的复合涂层及其喷涂方法，包括如下步骤： A composite coating for preventing marine biofouling and a spraying method thereof, comprising the following steps:
（1）金属基材表面预处理：采用磨料喷砂，除去海底格栅表面氧化层和其它杂物，达到Sa2.5级以上；(1) Surface pretreatment of metal substrate: abrasive blasting is used to remove oxide layer and other impurities on the surface of the seafloor grid to reach Sa2.5 level or higher;
（2）超音速火焰喷涂：采用超音速火焰喷涂方法，在经过喷砂处理的金属基体上喷涂镍铬（Ni-Cr）过渡层，喷涂厚度为80μm，然后在过渡层上喷涂氧化铝和氧化钛复合绝缘涂层，喷涂厚度为250μm；(2) Supersonic flame spraying: a supersonic flame spraying method is used to spray a nickel-chromium (Ni-Cr) transition layer on a sandblasted metal substrate, spraying a thickness of 80 μm, and then spraying aluminum oxide and oxidizing on the transition layer. Titanium composite insulating coating, spraying thickness is 250 μm;
（3）冷喷涂：采用冷喷涂方法，在绝缘涂层的表面上喷涂紫铜粉末，厚度为800μm。 (3) Cold spraying: A copper powder was sprayed on the surface of the insulating coating by a cold spraying method to a thickness of 800 μm.
实施例2 螺旋桨的防污Example 2 Antifouling of a propeller
一种防止海洋生物污损的复合涂层的喷涂方法，包括如下步骤：A spraying method for a composite coating for preventing marine biofouling comprises the following steps:
（1）金属基材表面预处理：采用磨料（如铜矿砂）喷砂，除去螺旋桨表面氧化层和其它杂物，达到Sa2.5级以上；(1) Surface pretreatment of metal substrate: sandblasting with abrasive material (such as copper ore) to remove oxide layer and other debris on the surface of the propeller to reach Sa2.5 level or higher;
（2）超音速火焰喷涂：采用超音速火焰喷涂方法，在经过喷砂处理的金属基体上喷涂镍铬（Ni-Cr）过渡层，喷涂厚度为100μm，然后在过渡层上喷涂氧化铝和氧化钛复合绝缘涂层，喷涂厚度为180μm；(2) Supersonic flame spraying: a supersonic flame spraying method is used to spray a nickel-chromium (Ni-Cr) transition layer on a blasted metal substrate, spraying a thickness of 100 μm, and then spraying aluminum oxide and oxidizing on the transition layer. Titanium composite insulating coating with a thickness of 180 μm;
（3）冷喷涂：采用冷喷涂方法，在绝缘涂层的表面上喷涂防污涂层纯紫铜粉末，厚度为1000μm。 (3) Cold spraying: The anti-fouling coating pure copper powder is sprayed on the surface of the insulating coating by a cold spraying method, and the thickness is 1000 μm.
实施例3 水下船体防污Example 3 Anti-pollution of underwater hull
一种防止海洋生物污损的复合涂层的喷涂方法，包括如下步骤：A spraying method for a composite coating for preventing marine biofouling comprises the following steps:
（1）金属基材表面预处理：采用磨料喷砂，除去水下船体钢板表面氧化层和其它杂物，达到Sa2.5级以上；(1) Surface pretreatment of metal substrate: abrasive blasting is used to remove oxide layer and other impurities on the surface of the underwater hull steel plate to reach Sa2.5 level or higher;
（2）超音速火焰喷涂：采用超音速火焰喷涂方法，在经过喷砂处理的金属基体上喷涂镍铬Ni-Cr过渡层，喷涂厚度为90μm，然后在过渡层上喷涂氧化铝和氧化钛复合绝缘涂层，喷涂厚度为200μm；(2) Supersonic flame spraying: using a supersonic flame spraying method, spraying a nickel-chromium Ni-Cr transition layer on a blasted metal substrate, spraying a thickness of 90 μm, and then spraying a composite of alumina and titanium oxide on the transition layer. Insulating coating, spraying thickness is 200μm;
（3）冷喷涂：采用冷喷涂方法，在绝缘涂层的表面上喷涂防污涂层纯紫铜粉末，厚度为900μm。 (3) Cold spraying: The anti-fouling coating pure copper powder is sprayed on the surface of the insulating coating by a cold spraying method, and the thickness is 900 μm.

Claims (2)

1. 一种防止海洋生物污损的复合涂层，其特征在于该复合涂层由80～100μm的镍－铬Ni-Cr过渡层、180～250μm的氧化铝和氧化钛复合绝缘涂层和800～1000μm的紫铜防污涂层组成，涂层总厚度为1000～1500μm。1. A composite coating for preventing marine biofouling, characterized in that the composite coating consists of a nickel-chromium Ni-Cr transition layer of 80-100 μm, a composite insulating coating of alumina and titanium oxide of 180-250 μm, and 800-1000 μm. The composition of the copper antifouling coating has a total coating thickness of 1000 to 1500 μm.
2. 一种防止海洋生物污损的复合涂层的喷涂方法，其特征在于包括如下步骤：2. A method of spraying a composite coating for preventing marine biofouling, comprising the steps of:
（1）金属基材表面预处理：采用磨料喷砂，除去构件表面氧化层和其它杂物，达到Sa2.5级以上；(1) Surface pretreatment of metal substrate: abrasive blasting is used to remove oxide layer and other impurities on the surface of the component to reach Sa2.5 level or higher;
（2）超音速火焰喷涂：采用超音速火焰喷涂方法，在经过喷砂处理的金属基体上喷涂镍铬Ni-Cr过渡层，喷涂厚度为80～100μm，然后在过渡层上喷涂氧化铝和氧化钛复合绝缘涂层，喷涂厚度为180～250μm；(2) Supersonic flame spraying: using a supersonic flame spraying method, spraying a nickel-chromium Ni-Cr transition layer on a blasted metal substrate, spraying a thickness of 80-100 μm, then spraying aluminum oxide on the transition layer and oxidizing Titanium composite insulating coating, spraying thickness of 180 ~ 250μm;
（3）冷喷涂：采用冷喷涂方法，在绝缘涂层的表面上喷涂防污涂层紫铜粉末，厚度为800～1000μm。(3) Cold spraying: The anti-fouling coating copper powder is sprayed on the surface of the insulating coating by a cold spraying method, and the thickness is 800-1000 μm.
PCT/CN2012/073465 2011-04-07 2012-04-01 Composite coating for preventing marine biofouling and spraying method thereof WO2012136127A1 (en)

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