KR20090012640A - Method of treating surface of magnesium product - Google Patents
Method of treating surface of magnesium product Download PDFInfo
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- KR20090012640A KR20090012640A KR1020070076633A KR20070076633A KR20090012640A KR 20090012640 A KR20090012640 A KR 20090012640A KR 1020070076633 A KR1020070076633 A KR 1020070076633A KR 20070076633 A KR20070076633 A KR 20070076633A KR 20090012640 A KR20090012640 A KR 20090012640A
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
- C23C22/77—Controlling or regulating of the coating process
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/78—Pretreatment of the material to be coated
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
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Abstract
Description
본 발명은 마그네슘 제품의 표면처리방법에 관한 것으로, 보다 상세하게는 산화방지막을 갖는 마그네슘 제품의 표면처리방법에 관한 것이다.The present invention relates to a surface treatment method of a magnesium product, and more particularly to a surface treatment method of a magnesium product having an antioxidant film.
마그네슘 또는 마그네슘 함금은 금속 중 상대적으로 가벼우며, 다이캐스팅 주조법에 의해 형상 가공이 용이하고, 비강도가 크다는 장점을 가져 자동차 부품, 전기전자부품, 레저 용품 등 여러 분야에 다양하게 사용되고 있으며, 전자파 차폐 효과가 커 전자제품, 예를 들어, 디스플레이 장치, 휴대폰 등의 케이스로 널리 사용되고 있다.Magnesium or magnesium alloy is relatively light among metals, is easy to shape by die casting casting method and has high specific strength. It is widely used as a case for electronic products, for example, a display device and a mobile phone.
그러나, 마그네슘 또는 마그네슘 합금은 알칼리 및 산에 취약하며 화학적으로 반응성이 매우 커 표면이 수분 또는 염분 등과 접촉에 쉽게 부식된다. 따라서, 표면에 산화마그네슘막 등의 산화방지막을 형성할 필요가 있다. However, magnesium or magnesium alloys are vulnerable to alkalis and acids and are highly chemically reactive, making their surfaces easily corrosive to contact with moisture or salts, and the like. Therefore, it is necessary to form antioxidant films, such as a magnesium oxide film, on the surface.
상기 산화방지막을 형성하는 방법으로는 건식 방법과 습식 방법이 있다. 건식 방법은 제품의 표면에 산화방지막을 증착하는 방식이어서 큰 작업 공간을 요하며 비용이 높다. 습식 방법에 의해 처리된 제품은 내식성 및 내마모성이 부족하여 내장재 용도로 주로 사용되고 있다. As the method for forming the antioxidant film, there are a dry method and a wet method. The dry method is a method of depositing an oxide film on the surface of a product, which requires a large work space and is expensive. Products treated by the wet method are mainly used for interior materials due to the lack of corrosion resistance and abrasion resistance.
그러나, 습식 방법 중 널리 사용되어온 크로메이트계 처리 방법의 경우, 인체에 해로운 6가 크롬이 함유된 처리액을 사용한다는 단점이 있으며, 이에 따라 최근에는 크롬을 사용하지 않는 비크롬계 표면처리방법에 대한 연구가 활발히 진행되고 있다.However, the chromate treatment method, which has been widely used among wet methods, has a disadvantage of using a treatment solution containing hexavalent chromium, which is harmful to the human body, and thus has recently been described for non-chromium surface treatment methods that do not use chromium. Research is actively underway.
비크롬계 표면처리방법의 예로는 양극산화방법, 지르코늄계 화성처리방법 등이 알려져 있다. Examples of non-chromium-based surface treatment methods are anodization, zirconium-based chemical treatment, and the like.
양극산화방법에 의해 처리된 제품은 내식성과 내마모성이 뛰어나지만 전기전도성이 취약하여 그 사용이 제한적인 단점이 있다. 또한, 지르코늄계 화성처리방법은 비용이 비교적 고가일 뿐만 아니라, 용도에 따라 내식성이 불충분할 수 있다는 단점이 있다.Products treated by the anodization method have excellent corrosion resistance and abrasion resistance, but have a disadvantage in that their use is limited due to their poor electrical conductivity. In addition, the zirconium-based chemical treatment method has a disadvantage that the cost is relatively expensive, and the corrosion resistance may be insufficient depending on the use.
따라서 본 발명의 목적은 마그네슘 제품의 내식성 및 전기전도도를 개선할 수 있는 표면처리방법을 제공하는데 있다.Accordingly, an object of the present invention is to provide a surface treatment method that can improve the corrosion resistance and electrical conductivity of magnesium products.
상술한 본 발명의 목적을 달성하기 위한 일 실시예에 따르면, 먼저, 마그네슘 제품을 세정한다. 상기 마그네슘 제품의 표면에 산화방지막을 형성한다. 상기 마그네슘 제품을 버닝처리한다.According to one embodiment for achieving the above object of the present invention, first, the magnesium product is cleaned. An antioxidant film is formed on the surface of the magnesium product. The magnesium product is burned.
예를 들어, 상기 마그네슘 제품을 세정은 상기 마그네슘 제품에 인산 또는 인산염을 포함하는 수용액을 가하여 수행될 수 있다.For example, cleaning the magnesium product may be performed by adding an aqueous solution containing phosphoric acid or phosphate to the magnesium product.
예를 들어, 상기 산화방지막은 상기 마그네슘 제품에 산성 코팅 조성물을 가한 후, 알칼리성 코팅 조성물을 가하여 형성될 수 있다. 예를 들어, 상기 산성 코팅 조성물은 과망간산염 5 내지 9 중량부, 인산염 2 내지 5 중량부, 인산 2 내지 6 중량부 및 물 100 중량부를 포함할 수 있으며, 상기 알칼리성 코팅 조성물은 과망간산칼륨 5 내지 10 중량부, 산화알루미늄 3 내지 6.5 중량부, 초산칼륨 2 내지 7 중량부, 수산화나트륨 10 내지 50 중량부 및 물 100 중량부를 포함할 수 있다.For example, the antioxidant film may be formed by adding an acidic coating composition to the magnesium product and then adding an alkaline coating composition. For example, the acidic coating composition may include 5 to 9 parts by weight of permanganate, 2 to 5 parts by weight of phosphate, 2 to 6 parts by weight of phosphoric acid, and 100 parts by weight of water, and the alkaline coating composition may include 5 to 10 parts of potassium permanganate. It may include parts by weight, aluminum oxide 3 to 6.5 parts by weight, potassium acetate 2 to 7 parts by weight, sodium hydroxide 10 to 50 parts by weight and water 100 parts by weight.
상기 산화방지막이 형성된 마그네슘 제품은 버닝처리 전에 70 내지 90 ℃의 물로 세정될 수 있다.The magnesium product formed with the antioxidant film may be washed with water at 70 to 90 ° C. before burning.
상기 마그네슘 제품을 버닝처리는, 예를 들어, 상기 마그네슘 제품에 코팅 조성물을 가한 후, 상기 마그네슘 제품을 버닝처리하여 수행될 수 있다. 예를 들 어, 상기 버닝처리에 이용되는 코팅 조성물은 아세톤 10 내지 50 중량부, 메탄올 20 내지 150 중량부 및 브롬화나트륨 10 내지 25 중량부를 포함할 수 있다. 상기 마그네슘 제품의 버닝처리는 상기 코팅 조성물이 피복된 마그네슘 제품을 150 ℃ 이상의 온도로 가열하여 상기 코팅 조성물을 연소하여 수행될 수 있다. 또한, 상기 코팅 조성물을 가한 후, 상기 버닝처리 전에 120 내지 150 ℃에서 상기 마그네슘 제품을 열처리할 수 있다.The burning of the magnesium product may be performed by, for example, adding a coating composition to the magnesium product and then burning the magnesium product. For example, the coating composition used in the burning process may include 10 to 50 parts by weight of acetone, 20 to 150 parts by weight of methanol and 10 to 25 parts by weight of sodium bromide. The burning of the magnesium product may be performed by burning the coating composition by heating the magnesium product coated with the coating composition to a temperature of 150 ° C. or higher. In addition, after the coating composition is added, the magnesium product may be heat-treated at 120 to 150 ℃ before the burning process.
상술한 본 발명의 일 실시예에 따른 마그네슘 제품의 표면처리방법은 마그네슘 제품의 내식성 및 표면의 균일성을 증가시킬 수 있다. 또한, 마그네슘 제품의 전기 전도도를 증가시킴으로써, 전기 전도도를 요하는 다양한 분야에 적용이 가능한 마그네슘 제품을 제조할 수 있다. The surface treatment method of the magnesium product according to the embodiment of the present invention described above may increase the corrosion resistance and the uniformity of the surface of the magnesium product. In addition, by increasing the electrical conductivity of the magnesium product, it is possible to produce a magnesium product that can be applied to various fields that require electrical conductivity.
도 1은 본 발명의 일 실시예에 따른 마그네슘 제품의 표면처리방법을 설명하기 위한 순서도 이다.1 is a flowchart illustrating a surface treatment method of a magnesium product according to an embodiment of the present invention.
도 1을 참조하면, 먼저, 마그네슘 또는 마그네슘 합금으로 이루어진 제품(이하 마그네슘 제품)을 준비한다. 예를 들어, 상기 마그네슘 제품은 다이캐스팅 또는 프레스 가공 등을 통하여 소정의 형상을 갖도록 형성될 수 있다.Referring to FIG. 1, first, a product made of magnesium or a magnesium alloy (hereinafter referred to as magnesium product) is prepared. For example, the magnesium product may be formed to have a predetermined shape through die casting or press working.
상기 준비된 마그네슘 제품을 세정한다(S 10). 세정 공정을 통해 상기 마그네슘 제품 표면의 불순물이 제거되고, 산화방지막 형성에 적합하도록 표면이 활성화될 수 있다. 상기 세정 공정에는 인산 용액 또는 인산염 용액 등이 이용될 수 있으며, 예를 들어, 물(순수) 약 100 중량부 및 인산 약 5 내지 7 중량부를 포함하는 인산 수용액이 이용될 수 있으며, 이때 침지 시간은 약 5 내지 약 50 초일 수 있으며, 상기 침지 시간은 인산 수용액의 농도 및 온도 등에 따라 적절하게 달라질 수 있다. The prepared magnesium product is washed (S 10). Through the cleaning process, impurities on the surface of the magnesium product may be removed, and the surface may be activated to be suitable for forming an antioxidant layer. In the cleaning process, a phosphoric acid solution or a phosphate solution may be used. For example, an aqueous phosphoric acid solution including about 100 parts by weight of water (pure water) and about 5 to 7 parts by weight of phosphoric acid may be used. It may be about 5 to about 50 seconds, the immersion time may be appropriately changed according to the concentration and temperature of the aqueous solution of phosphoric acid.
다음으로, 상기 마그네슘 제품의 표면에 산화방지막을 형성한다(S 20). 상기 산화방지막은 아래의 두 과정을 통하여 형성될 수 있다. 먼저, 침지 등의 상기 마그네슘 제품에 산성 코팅 조성물을 가한다(S 22). 상기 산성 코팅 조성물은 약산성을 띌 수 있으며, 예를 들어, 약 5 내지 약 6.5 pH일 수 있다. 구체적으로, 상기 산성 코팅 조성물은 과망간산염 약 5 내지 약 9 중량부, 인산염 약 2 내지 약 5 중량부, 인산 약 2 내지 약 6 중량부 및 물 약 100 중량부를 포함할 수 있다. 예를 들어, 상기 과망간산염으로는 과망간산칼륨(KMnO4)을 예로 들 수 있으며, 상기 인산염은 제3인산나트륨(Na3PO4)을 예로 들 수 있다. Next, to form an antioxidant film on the surface of the magnesium product (S 20). The antioxidant film may be formed through the following two processes. First, an acidic coating composition is added to the magnesium product such as dipping (S 22). The acidic coating composition may be slightly acidic, for example, from about 5 to about 6.5 pH. Specifically, the acidic coating composition may include about 5 to about 9 parts by weight of permanganate, about 2 to about 5 parts by weight of phosphate, about 2 to about 6 parts by weight of phosphoric acid, and about 100 parts by weight of water. For example, the permanganate salt may include potassium permanganate (KMnO 4 ), and the phosphate salt may include sodium triphosphate (Na 3 PO 4 ).
다음으로, 상기 마그네슘 제품에 알칼리성 코팅 조성물을 가한다(S 24). 상기 알칼리성 코팅 조성물은, 예를 들어, 약 11 내지 약 13 pH일 수 있다. 구체적으로, 상기 알칼리성 코팅 조성물은 과망간산칼륨 약 5 내지 약 10 중량부, 산화알루미늄(Al2O3) 약 3 내지 약 6.5 중량부, 초산칼륨(C2H3O2K) 약 2 내지 약 7 중량부, 수산화나트륨 약 10 내지 약 50 중량부 및 물 약 100 중량부를 포함할 수 있다. Next, an alkaline coating composition is added to the magnesium product (S 24). The alkaline coating composition may be, for example, about 11 to about 13 pH. Specifically, the alkaline coating composition is about 5 to about 10 parts by weight of potassium permanganate, about 3 to about 6.5 parts by weight of aluminum oxide (Al 2 O 3 ), about 2 to about 7 potassium acetate (C 2 H 3 O 2 K) It can include parts by weight, about 10 to about 50 parts by weight sodium hydroxide and about 100 parts by weight of water.
상기 산화방지막의 형성이 용이하도록 상기 코팅 조성물의 온도는 상온보다 높은 것이 바람직하며, 예를 들어, 약 50 내지 약 90℃일 수 있다. 또한, 상기 마 그네슘 제품의 침지 시간은 약 30 내지 120초일 수 있으며, 이는 피막형성 조성물의 농도 및 온도 등에 따라 적절하게 달라질 수 있다.In order to facilitate the formation of the antioxidant layer, the temperature of the coating composition is preferably higher than room temperature, and may be, for example, about 50 to about 90 ° C. In addition, the immersion time of the magnesium product may be about 30 to 120 seconds, which may be appropriately changed depending on the concentration and temperature of the encapsulation composition.
다음으로, 상기 피막이 형성된 마그네슘 제품을 세정한다(S 30). 상기 세정 공정을 통해 산화방지막의 표면에 잔류하는 코팅 조성물 등을 제거한다. 바람직하게, 상기 세정 공정은 물을 이용하여 이루어진다. 상기 수세 공정에 사용되는 물의 온도는 상온 이상인 것이 바람직하며, 예를 들어, 약 70 내지 약 90 ℃일 수 있다. Next, the magnesium product formed with the coating is cleaned (S 30). The coating composition and the like remaining on the surface of the antioxidant film are removed through the cleaning process. Preferably, the cleaning process is performed using water. The temperature of the water used in the washing step is preferably at least room temperature, for example, may be about 70 to about 90 ℃.
다음으로, 상기 산화방지막이 형성된 마그네슘 제품을 버닝처리한다(S 40). 상기 버닝처리를 위하여 먼저, 상기 마그네슘 제품의 표면에 침지 등의 방법을 통하여 코팅 조성물을 가한다(S 42). 상기 코팅 조성물은 휘발성 유기화합물 및 할로겐 염을 포함한다. 상기 휘발성 유기 화합물의 예로는 아세톤 등의 저급 케톤, 에탄올, 메탄올 등의 저급 알콜을 예로 들 수 있으며, 할로겐 염의 예로는 브롬화나트륨 등을 예로 들수 있다. 구체적인 예로, 상기 코팅 조성물은 아세톤 약 10 내지 약 50 중량부, 메탄올 약 20 내지 약 150 중량부 및 브롬화나트륨 약 10 내지 약 25 중량부를 포함할 수 있다.Next, the magnesium product formed with the antioxidant film is burned (S 40). For the burning process, first, a coating composition is added to the surface of the magnesium product through a method such as dipping (S 42). The coating composition comprises a volatile organic compound and a halogen salt. Examples of the volatile organic compounds include lower ketones such as acetone, lower alcohols such as ethanol and methanol, and examples of halogen salts include sodium bromide. As a specific example, the coating composition may include about 10 to about 50 parts by weight of acetone, about 20 to about 150 parts by weight of methanol and about 10 to about 25 parts by weight of sodium bromide.
다음으로, 상기 코팅 조성물이 피복된 마그네슘 제품을 열처리 한다(S 44). 상기 열처리 공정을 통하여 상기 휘발성 유기 화합물의 일부를 제거하고 피막에 기포 등이 생성되는 것을 방지할 수 있다. 상기 열처리는 약 120 내지 약 150 ℃에서 약 3 내지 약 7분간 행해질 수 있다.Next, heat treating the magnesium product coated with the coating composition (S 44). Through the heat treatment process, a part of the volatile organic compound may be removed, and bubbles may be prevented from being generated in the film. The heat treatment may be performed at about 120 to about 150 ° C. for about 3 to about 7 minutes.
다음으로, 상기 코팅 조성물을 버닝하여 잔류한 유기 화합물을 연소시키고 산화막을 형성한다(S 46). 상기 유기 화합물의 연소를 위하여 약 150 ℃ 이상의 온도로 가열하는 것이 바람직하다. 이상의 버닝 공정을 통하여 형성된 피막은 균일도가 높을 뿐만 아니라, 내식성이 우수하며 전기전도도가 높다.Next, the coating composition is burned to burn residual organic compounds to form an oxide film (S 46). It is preferable to heat to a temperature of about 150 ℃ or more for the combustion of the organic compound. The film formed through the above burning process has not only high uniformity but also excellent corrosion resistance and high electrical conductivity.
본 발명의 일 실시예에 따른 마그네슘 제품의 표면처리방법은 마그네슘 제품의 내식성을 증가시킬 수 있다. 또한, 마그네슘 제품의 전기 전도도를 증가시킴으로써, 전기 전도도를 요하는 다양한 분야에 적용이 가능한 마그네슘 제품을 제조할 수 있다. 또한, 본 발명의 일 실시예에 따른 마그네슘 제품의 제조방법은 크로메이트 처리를 하지 않음으로써, 유해 물질의 배출을 감소시킬 수 있다.Surface treatment of the magnesium product according to an embodiment of the present invention can increase the corrosion resistance of the magnesium product. In addition, by increasing the electrical conductivity of the magnesium product, it is possible to produce a magnesium product that can be applied to various fields that require electrical conductivity. In addition, the method for producing a magnesium product according to an embodiment of the present invention can reduce the emission of harmful substances by not chromate treatment.
상술한 본 발명의 일 실시예에 따른 마그네슘 제품의 표면처리방법은 마그네슘 제품의 내식성 및 표면의 균일성을 증가시킬 수 있다. 또한, 마그네슘 제품의 전기 전도도를 증가시킴으로써, 전기 전도도를 요하는 다양한 분야에 적용이 가능한 마그네슘 제품을 제조할 수 있다. The surface treatment method of the magnesium product according to the embodiment of the present invention described above may increase the corrosion resistance and the uniformity of the surface of the magnesium product. In addition, by increasing the electrical conductivity of the magnesium product, it is possible to produce a magnesium product that can be applied to various fields that require electrical conductivity.
이상, 본 발명의 바람직한 실시예를 참조하여 설명하였지만 해당 기술 분야의 통상의 지식을 가진 자라면 하기의 특허청구범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.As described above with reference to the preferred embodiment of the present invention, those skilled in the art without departing from the spirit and scope of the present invention described in the claims below various modifications and It will be appreciated that it can be changed.
도 1은 본 발명의 일 실시예에 따른 마그네슘 제품의 표면처리방법을 나타내는 순서도이다.1 is a flow chart showing a surface treatment method of a magnesium product according to an embodiment of the present invention.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101045864B1 (en) * | 2009-09-04 | 2011-07-01 | 주식회사 위스코하이텍 | Direct Surface Treatment of Magnesium Alloy Products |
| WO2014081089A1 (en) * | 2012-11-26 | 2014-05-30 | 주식회사 위스코하이텍 | Method for surface treating metal articles |
| KR101401363B1 (en) * | 2012-12-17 | 2014-05-30 | 주식회사 위스코하이텍 | Surface painting method for mg alloys goods |
| KR101401366B1 (en) * | 2012-12-12 | 2014-05-30 | 주식회사 위스코하이텍 | Surface coating method for mg alloys goods |
| WO2015119409A1 (en) * | 2014-02-04 | 2015-08-13 | 주식회사 위스코하이텍 | Surface treatment method for metal base |
| KR20190053527A (en) * | 2017-11-10 | 2019-05-20 | 김양희 | The mixture for manufacturing of companion animal feeds having diet functions |
| CN113136577A (en) * | 2021-04-06 | 2021-07-20 | 南通海高数控机械有限公司 | Automatic rust-resistant treatment production line for C-shaped steel |
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| CN103834901A (en) * | 2012-11-26 | 2014-06-04 | 威斯科高新技术有限公司 | Method for treating the surface of metal product |
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| JP2002294466A (en) * | 2001-03-28 | 2002-10-09 | Nippon Paint Co Ltd | Conversion coating solution for magnesium alloy, surface treatment method, and magnesium-alloy base material |
| KR100445165B1 (en) * | 2001-11-16 | 2004-08-21 | 주식회사 씨-테크 | A Method Of Coating Magnesium Alloy For Protecting From Corrode |
| US6887320B2 (en) | 2002-02-11 | 2005-05-03 | United Technologies Corporation | Corrosion resistant, chromate-free conversion coating for magnesium alloys |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101045864B1 (en) * | 2009-09-04 | 2011-07-01 | 주식회사 위스코하이텍 | Direct Surface Treatment of Magnesium Alloy Products |
| WO2014081089A1 (en) * | 2012-11-26 | 2014-05-30 | 주식회사 위스코하이텍 | Method for surface treating metal articles |
| KR101401366B1 (en) * | 2012-12-12 | 2014-05-30 | 주식회사 위스코하이텍 | Surface coating method for mg alloys goods |
| KR101401363B1 (en) * | 2012-12-17 | 2014-05-30 | 주식회사 위스코하이텍 | Surface painting method for mg alloys goods |
| WO2015119409A1 (en) * | 2014-02-04 | 2015-08-13 | 주식회사 위스코하이텍 | Surface treatment method for metal base |
| KR20190053527A (en) * | 2017-11-10 | 2019-05-20 | 김양희 | The mixture for manufacturing of companion animal feeds having diet functions |
| CN113136577A (en) * | 2021-04-06 | 2021-07-20 | 南通海高数控机械有限公司 | Automatic rust-resistant treatment production line for C-shaped steel |
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