KR101506311B1 - Chrome Free-typed Conversion Coating Composition for Non-Ferrous Metal and Conversion Coating Method thereof - Google Patents
Chrome Free-typed Conversion Coating Composition for Non-Ferrous Metal and Conversion Coating Method thereof Download PDFInfo
- Publication number
- KR101506311B1 KR101506311B1 KR20130151287A KR20130151287A KR101506311B1 KR 101506311 B1 KR101506311 B1 KR 101506311B1 KR 20130151287 A KR20130151287 A KR 20130151287A KR 20130151287 A KR20130151287 A KR 20130151287A KR 101506311 B1 KR101506311 B1 KR 101506311B1
- Authority
- KR
- South Korea
- Prior art keywords
- ferrous metal
- minutes
- acrylic acid
- conversion coating
- free
- Prior art date
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- 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
-
- 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
-
- 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
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/10—Other heavy metals
- C23G1/103—Other heavy metals copper or alloys of copper
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/20—Other heavy metals
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/22—Light metals
Abstract
Description
본 발명은 비철금속 소재용 크롬-프리형 화성처리 조성물 및 이를 이용한 화성처리 방법에 관한 것으로, 보다 상세하게는 크롬을 포함하지 않고 친환경 조성물을 포함하면서도 비철금속에 코팅시의 부착성과 방청성을 극대화시키기 위한 비철금속 소재용 크롬-프리형 화성처리 조성물 및 이를 이용한 화성처리 방법에 관한 것이다.The present invention relates to a chromium-free chemical conversion composition for non-ferrous metal materials and a chemical conversion treatment method using the same, and more particularly, to a chromium-free chemical conversion composition for non-ferrous metals, Free chromate-free composition for materials and a chemical conversion treatment method using the same.
일반적으로 금속 제품들은 표면처리의 후처리로서, 흑염 처리, 크로메이트 처리나 인산염 처리와 같은 화성처리를 행하여 제품을 생산하게 된다. 화성처리는, 표면에 안정된 화합물이 생성되도록 하는 것으로서, 특히 금속의 표면 처리 부분에 많은 수요를 보이고 있으며, 근래에는 알루미늄 합금, 마그네슘 합금, 구리합금과 같이 자동차 내장용 또는 전기전자 재료용 등의 비철금속의 표면 처리에도 급증되고 있다. In general, metal products are subjected to a surface treatment followed by a chemical treatment such as a blackening treatment, a chromate treatment or a phosphate treatment to produce a product. The chemical conversion treatment is a process for producing a stable compound on the surface. In particular, there is a great demand for a surface treatment portion of a metal. Recently, a non-ferrous metal such as an aluminum alloy, a magnesium alloy, Has also been rapidly increasing in surface treatment.
특히, 크로메이트 처리의 경우, 크롬산이나 중크롬산염을 주성분으로 하는 용액에 금속을 침전시켜 방청 피막이 입히도록 하고 있다. Particularly, in the case of the chromate treatment, a metal is precipitated in a solution containing chromic acid or dichromate as a main component so that a rust preventive coating is applied.
이러한 크로메이트 처리는 비용이 저렴하고 우수한 도장밀착성을 가지지만, 근래에는 작업자 및 주위 환경에 유해한 이유로 대표적인 공해물질로 분류되고 있다. Although such a chromate treatment is inexpensive and has excellent coating adhesion, it has recently been classified as a typical pollution substance for reasons that are harmful to workers and the surrounding environment.
따라서, 크롬을 사용하지 않아 친환경적으로 화성처리를 할 수 있는 화성처리액에 대한 개발이 요구되는 실정이다.Therefore, there is a need to develop a chemical conversion solution which can be chemically treated in an environmentally friendly manner without using chromium.
본 발명은 상기와 같은 문제를 해결하기 위해 안출된 것으로, 본 발명의 목적은, 크롬을 사용하지 않아 친환경적이면서도 우수한 도장밀착성 및 방청성이 보장되도록 하고 작업이 용이하고 단가가 높지 않으며, 소재의 평활도를 증가시키고 피막의 박막성, 치밀성 및 균일성을 충족시키며, 피도체인 비철금속과 상도층인 유기층과의 사이에서 층간 부착력을 증진시키기 위한 비철금속 소재용 크롬-프리형 화성처리 조성물 및 이를 이용한 화성처리 방법을 제공함에 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a chromium-free material which is environmentally friendly and excellent in coating adhesion and rustproofing property without using chromium, and is easy to work, Free moldable composition for non-ferrous metal materials to increase interlayer adhesion between a non-ferrous metal and an organic layer as a top layer, which satisfies film thickness, denseness and uniformity of the film, and a chemical conversion treatment method using the composition .
상기 목적을 달성을 달성하기 위한 본 발명의 일 실시예에 따른 비철금속 소재용 크롬-프리형 화성처리 조성물은, 비닐포스폰산(Vinyl Phosphonic Acid)과 아크릴산(Acrylic Acid)을 혼합하여 이루어지는 코폴리머(Copolymer) 및 정제수를 혼합하여 이루어진다.According to an embodiment of the present invention, there is provided a chromium-free chemical conversion composition for a non-ferrous metal material, which comprises a copolymer comprising vinylphosphonic acid and acrylic acid, ) And purified water.
여기서, 상기 코폴리머는, 상기 비닐포스폰산 25~35중량%,상기 아크릴산 65~75중량%를 함유하고, 상기 비철금속 소재용 크롬-프리형 화성처리 조성물은, 상기 코폴리머 2~10중량%, 상기 정제수 90-98중량%를 함유할 수 있다.Wherein the copolymer contains 25 to 35% by weight of the vinylphosphonic acid and 65 to 75% by weight of the acrylic acid, and the chromium-free conversion treatment composition for a non-ferrous metal material comprises 2 to 10% by weight of the copolymer, And 90 to 98% by weight of the purified water.
한편, 상기 목적을 달성을 달성하기 위한 본 발명의 일 실시예에 따른 비철금속 소재용 크롬-프리형 화성처리 방법은, 비철금속으로 된 피도체를 70℃이상 90℃이하를 유지하면서 5분이상 10분이하로 탈지시키는 단계; 상기 탈지된 피도체를 정제수로 세척시키는 단계; 비닐포스폰산(Vinyl Phosphonic Acid)과 아크릴산(Acrylic Acid)을 혼합하여 이루어지는 코폴리머(Copolymer) 및 정제수를 혼합하여 이루어지는 크롬-프리형 화성처리액에 상온에서 30초이상 60초이하로 상기 피도체를 침적시키는 단계; 상기 침적되었던 피도체를 상온에서 5분이상 건조시키는 단계; 상기 건조된 피도체를 120℃이상 150℃이하로 5분이상 경화시키는 단계; 상기 경화된 피도체의 미관상 광택감을 위해, 상기 경화된 피도체에 클리어 도료를 이용한 상도층을 형성시키거나, 색상 도료를 이용한 상도층을 형성시키는 단계; 및 상기 상도층이 형성된 피도체를 120℃이상 150℃이하로 5분이상 건조 및 경화시키는 단계;를 포함한다.According to another aspect of the present invention, there is provided a chrome-free chemical conversion treatment method for a non-ferrous metal material, which comprises subjecting a conductor made of a non- Degassing; Washing the degreased conductor with purified water; Free chemical conversion treatment liquid obtained by mixing a copolymer comprising vinylphosphonic acid (Vinyl Phosphonic Acid) and acrylic acid (Acrylic Acid) and purified water, at a room temperature for 30 seconds to 60 seconds A depositing step; Drying the immersed conductor at room temperature for 5 minutes or more; Curing the dried conductor to 120 ° C or more and 150 ° C or less for 5 minutes or more; Forming a top coat layer using a clear paint on the cured object or forming a top coat layer using a color paint for a cosmetic shine of the cured object; And drying and curing the conductor on which the upper layer is formed at 120 ° C or higher and 150 ° C or lower for 5 minutes or longer.
여기서, 상기 클리어 도료 또는 상기 색상 도료는, 에폭시 수지, 우레탄 수지 및 아크릴 수지를 포함할 수 있다.Here, the clear paint or the color paint may include an epoxy resin, a urethane resin, and an acrylic resin.
이에 의해, 크롬을 사용하지 않으면서 친환경적인 화성처리가 가능하고 우수한 도장밀착성 및 방청성이 보장되며, 작업이 용이하고 단가가 높지 않으며, 소재의 평활도를 증가시키고 피막의 박막성, 치밀성 및 균일성을 충족시킬 수 있게 된다. 또한, 피도체인 비철금속과 상도층인 유기층과의 사이에서 층간 부착력을 증진시킬 수 있게 된다. As a result, it is possible to perform environment-friendly chemical treatment without using chromium, ensure excellent coating adhesion and rustproofing property, easy work, high unit price, increase the smoothness of the material and increase the film thickness, denseness and uniformity . In addition, it is possible to enhance interlaminar adhesion between the non-ferrous metal and the organic layer as the top layer.
도 1은 본 발명의 실시예에 따른 비철금속 소재용 크롬-프리형 화성처리 조성물을 이용한 화성처리 방법을 나타낸 도면이다. 1 is a view illustrating a chemical conversion treatment method using a chrome-free chemical conversion composition for a non-ferrous metal material according to an embodiment of the present invention.
이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 대해 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
도 1은 본 발명의 실시예에 따른 비철금속 소재용 크롬-프리형 화성처리 조성물을 이용한 화성처리 방법을 나타낸 도면이다. 1 is a view illustrating a chemical conversion treatment method using a chrome-free chemical conversion composition for a non-ferrous metal material according to an embodiment of the present invention.
도 1에 도시된 바와 같이, 본 발명의 일 실시예에 따른 비철금속 소재용 크롬-프리형 화성처리 조성물은, 비닐포스폰산(Vinyl Phosphonic Acid : VPA)과 아크릴산(Acrylic Acid)을 혼합하여 이루어지는 코폴리머(Copolymer)에 정제수를 혼합하여 이루어지는 것을 특징으로 한다. 1, a chromium-free chemical conversion composition for a non-ferrous metal material according to an embodiment of the present invention includes a copolymer comprising vinylphosphonic acid (VPA) and acrylic acid (Acrylic Acid) (Copolymer) is mixed with purified water.
비닐포스폰산(VPA)은 금속 이온 착화를 위해 사용되며, 비닐포스폰산(VPA)을 이용한 코폴리머(Copolymer)도 동일한 기능을 한다. 특히, 구리, 은, 코발트, 니켈, 카드뮴, 칼슘, 알루미늄 등과 높은 친화력을 나타낸다.The vinylphosphonic acid (VPA) is used for metal ion complexation, and the copolymer using vinylphosphonic acid (VPA) has the same function. In particular, it exhibits high affinity with copper, silver, cobalt, nickel, cadmium, calcium, aluminum and the like.
아크릴산(AA)은 유기 화합물이자 불포화 카복실산에 속하는 물질로서, 상온에서 무색 투명하며 자극성의 냄새를 가지는 액체상태로 존재한다. 이러한 아크릴산(AA)은 다른 단량체와 공중합하여 고분자를 생성하게 되는데, 아크릴산과의 중합을 통해 생성되는 수지는 물에 녹아 점성도가 높은 용액을 만들기 때문에, 니스, 잉크 등 점도를 높여주는 용도로 사용되게 되며, 아크릴산의 -COOH기는 상도 도료와 같은 유기층과의 부착력을 증진시키는 역할을 하게 된다.Acrylic acid (AA) is an organic compound and belongs to an unsaturated carboxylic acid, and exists in a liquid state having a colorless transparent and irritating odor at room temperature. Such acrylic acid (AA) is copolymerized with other monomers to form a polymer. Since a resin produced through polymerization with acrylic acid is dissolved in water to form a solution having a high viscosity, it is used for the purpose of increasing the viscosity of varnishes and inks And the -COOH group of acrylic acid serves to enhance the adhesion with an organic layer such as a top coating.
본 실시예에서는 비닐포스폰산(VPA)과 아크릴산(AA)을 혼합하여 VPA-AA 코폴리머(Copolymer)를 생성하되, 이러한 VPA-AA 코폴리머(Copolymer)는 비닐포스폰산(VPA)이 25~35중량%, 그리고, 아크릴산(AA)이 65~75중량%를 함유되도록 하는 것으로 상정하였다.In this embodiment, a VPA-AA copolymer is produced by mixing vinylphosphonic acid (VPA) and acrylic acid (AA), wherein the VPA-AA copolymer has a vinylphosphonic acid (VPA) By weight, and acrylic acid (AA) in an amount of 65 to 75% by weight.
본 실시예에 따른 VPA-AA 코폴리머(Copolymer)의 필수 성분인 아크릴산(AA)의 중량%는 화성처리시의 적절한 점성도가 형성되고, 유기층과의 부착력을 증진시키는 역할을 하게 된다. The weight% of acrylic acid (AA), which is an essential component of the VPA-AA copolymer according to the present embodiment, forms an appropriate viscosity at the time of chemical conversion and plays a role of enhancing the adhesion with the organic layer.
또한, VPA-AA 코폴리머(Copolymer)는 정제수와 혼합되어 사용되며, 이러한 혼합상태로 된 조성물이 비철금속 소재용 크롬-프리형 화성처리액으로 사용되게 된다. In addition, the VPA-AA copolymer is used in combination with purified water, and the composition in such a mixed state is used as a chromium-free conversion treatment liquid for non-ferrous metals.
한편, 비철금속 소재용 크롬-프리형 화성처리를 위해, 우선적으로, 비철금속으로 된 피도체를 70℃이상 90℃이하를 유지하면서 5분이상 10분이하로 탈지시키는 단계가 진행된다(S100). 탈지 단계에서는, 비철금속의 표면에 부착되어 있는 유지성 오염물을 제거시키게 되며, 비철금속의 성질을 변화시키지 않기 위해 70℃이상 90℃이하의 온도를 유지할 필요가 있고, 유지성 오염물이 충분히 제거되도록 하기 위해 5분 이상의 시간이 유지될 필요가 있다.On the other hand, for the chrome-free chemical conversion treatment for the non-ferrous metal material, a step of degreasing the non-ferrous metal body at a temperature of 70 ° C or more and 90 ° C or less for 5 minutes or more and 10 minutes or less is performed first (S100). In the degreasing step, the retaining contaminants attached to the surface of the non-ferrous metal are removed. To keep the properties of the non-ferrous metal unchanged, it is necessary to maintain a temperature of 70 ° C or more and 90 ° C or less. The above time needs to be maintained.
이와 같이 비철금속에서 유지성 오염물이 분리될 수 있는 상태가 되면, 탈지된 피도체를 정제수로 세척시켜 유지성 오염물을 비철금속에서 분리시키고 표면을 세정시키기 위한 단계가 진행된다(S200).When the retained contaminants can be separated from the non-ferrous metal, the degreased body is washed with purified water to separate the retained contaminants from the non-ferrous metal and a step for cleaning the surface is performed (S200).
표면 세정이 완료되면, 전술한 코폴리머가 제조되는 단계(S300)와 비철금속 소재용 크롬-프리형 화성처리액이 제조되는 단계(S400)가 진행된다. 이러한 비철금속 소재용 크롬-프리형 화성처리액은 크롬산이나 중크롬산염을 사용하여 방청 피막이 생기도록 하는 크로메이트 처리와 달리 공해물질들이 아닌 친환경적 물질들을 사용하여 제조된다.When the surface cleaning is completed, a step (S300) in which the above-mentioned copolymer is produced and a step (S400) in which a chromium-free chemical conversion solution for a non-ferrous metal material is produced proceed. Unlike the chromate treatment that uses chromic acid or dichromate to produce rust-preventive coatings, these chromium-free chemical liquors for non-ferrous metals are produced using environmentally friendly substances, not pollutants.
이후, 비철금속을 전술한 비철금속 소재용 크롬-프리형 화성처리액에 상온에서 30초이상 60초이하로 침적시키는 단계가 진행된다(S500). 이와 같이 화성처리액에 비철금속을 침적시킴으로써, 비철금속의 표면이 비철금속 소재용 크롬-프리형 화성처리액에 의해 코팅되게 된다. Thereafter, a step of immersing the non-ferrous metal in the above-described chrome-free plating solution for non-ferrous metals at room temperature for 30 seconds to 60 seconds is performed (S500). By immersing a non-ferrous metal in the chemical liquor, the surface of the non-ferrous metal is coated with the chromium-free chemical liquor for non-ferrous metals.
화성처리액에 의해 코팅된 비철금속은 상온에서 5분이상 건조되도록 하고(S600), 120℃이상 150℃이하로 5분이상 경화되도록 하여(S700), 비철금속에 화성처리액이 충분히 안착되도록 하게 된다. The non-ferrous metal coated by the chemical treatment solution is allowed to dry at room temperature for 5 minutes or more (S600), and is cured at 120 ° C or more and 150 ° C or less for 5 minutes or more (S700) so that the chemical liquor is sufficiently seated in the non-ferrous metal.
이후, 경화된 비철금속의 미관상 광택감을 위해, 경화된 비철금속에 클리어 도료를 이용한 상도층을 형성시키거나, 색상 도료를 이용한 상도층을 형성시키는 단계가 진행된다(S800). 상도층을 형성시키기 위한 도료로는, 에폭시, 우레탄, 아크릴 수지 등을 주성분으로 하는 도료가 사용된다.Thereafter, a step of forming a top coat layer using a clear paint on the cured non-ferrous metal or forming a top coat layer using a color paint is performed (S800) for the cosmetic luster of the cured non-ferrous metal. As the paint for forming the upper layer, a paint containing epoxy, urethane, acrylic resin or the like as a main component is used.
상도층이 형성되고 나면, 상도층이 형성된 비철금속을 120℃이상 150℃이하로 5분이상 건조 및 경화시켜 상도층이 안착되도록 하는 단계가 진행된다(S900).
After the upper layer is formed, the non-ferrous metal having the upper layer formed is dried and cured at 120 ° C or more and 150 ° C or less for 5 minutes or more to allow the upper layer to be seated (S900).
물성 측정Property measurement
(1) 도장 밀착성 측정(1) Coating adhesion measurement
화성처리된 비철금속 시편(지름 2cm)을 10분 동안 건조 및 경화시킨 후, 흐르는 물에 씻어내며 벗겨지는 부분이 있는지 테스트하였으며, 벗겨진 부분이 있는 경우 '불량', 벗겨진 부분이 없는 경우 '양호'로 기재하였다.
The non-ferrous metal specimens (2 cm in diameter) were dried and cured for 10 minutes and then tested for rinsing and peeling in the running water. If there is a peeled part, it is 'bad'. If there is no peeled part, it is 'good' .
(2) 방청성 측정(2) Measurement of rust resistance
화성처리된 비철금속 시편(지름 2cm)을 산화제에 10분간 침전시켜 산화가 진행되는 부분이 있는지 테스트하였으며, 절반 이상 산화가 진행된 경우 '불량', 절반 미만 산화가 진행된 경우 '양호'로 기재하였다.
Non-ferrous metal specimens (2 cm in diameter) were immersed in oxidizing agent for 10 minutes to test whether there was any oxidation progression. If more than half of the samples were oxidized, 'bad' and less than half were 'good'.
(3) 안정성 측정(3) Stability measurement
화성처리액을 화성처리에 사용하고 나서 1시간 방치 후 화성처리액의 상분리 여부를 확인하여 테스트하였으며, 상분리가 일어난 것을 '불량', 상분리가 일어나지 않고 안정적인 것을'양호'로 기재하였다.
After the chemical treatment liquid was used in the chemical conversion treatment, it was left for 1 hour, and then it was checked whether or not the chemical conversion treatment liquid had been phase-separated, and it was tested that the phase separation occurred 'poor' and the stable phase separation did not occur.
(4) 치밀성 측정(4) Densitometric measurement
화성처리된 비철금속 시편(지름 2cm)의 화성처리 면적을 테스트하였으며, 화성처리되지 않은 면적이 1mm이상인 경우 '불량', 화성처리되지 않은 면적이 1mm미만인 경우 '양호'로 기재하였다.
The area of the untreated non-ferrous metal specimen (diameter 2 cm) was tested. If the untreated area was 1 mm or more, it was 'bad'. If the untreated area was less than 1 mm, it was 'good.'
(5) 균일성 측정(5) Measurement of uniformity
화성처리된 비철금속 시편(지름 2cm)의 화성처리 두께를 테스트하였으며, 최대 두께와 최소 두께의 차이가 최소 두께보다 큰 경우 '불량', 그렇지 않은 경우 '양호'로 기재하였다.
The chemical treatment thickness of the chemically treated nonferrous metal specimen (diameter 2 cm) was tested. If the difference between the maximum thickness and the minimum thickness is larger than the minimum thickness, it is indicated as 'bad'. Otherwise, it is described as 'good'.
실시예Example 1 One
제1단계 : 비닐포스폰산(Vinyl Phosphonic Acid) 25중량%에 아크릴산(Acrylic Acid) 75중량%를 혼합하여 코폴리머(Copolymer)를 제조하였다.Step 1: Copolymer was prepared by mixing 25 wt% of vinylphosphonic acid and 75 wt% of acrylic acid.
제2단계 : 코폴리머(Copolymer) 5중량%에 정제수 95중량%를 혼합하여 화성처리액을 제조하였다.Second Step: A chemical conversion solution was prepared by mixing 95% by weight of purified water with 5% by weight of a copolymer.
제3단계 : 제조된 화성처리액에 비철금속 시편(지름 2cm)을 40초간 침적시켰다.
Step 3: The non-ferrous metal specimen (diameter 2 cm) was immersed in the prepared chemical liquor for 40 seconds.
실시예Example 2 2
비닐포스폰산(VPA), 아크릴산(AA)의 함량을 각각 35중량%, 65중량%로 변화시킨 것을 제외하고 실시예 1과 동일하게 제조하여 시험하였다.
Was prepared and tested in the same manner as in Example 1 except that the contents of vinylphosphonic acid (VPA) and acrylic acid (AA) were changed to 35 wt% and 65 wt%, respectively.
이와 같이, 본 발명의 실시예 1 및 2의 화성처리액은, 친환경적인 물질만을 사용하여 우수한 도장밀착성과 방청성을 제공하며, 이와 동시에 피막의 박막성, 치밀성 및 균일성을 제공하게 된다.
As described above, the chemical conversion treatment solutions of Examples 1 and 2 of the present invention use only eco-friendly materials to provide excellent paint adhesion and rust prevention properties, and at the same time provide film thinness, denseness and uniformity of the coating.
상술한 바와 같이, 본 발명의 실시예에 따른 비철금속 소재용 크롬-프리형 화성처리 조성물 및 이를 이용한 화성처리방법은 종래의 화성처리에 사용되는 크롬산이나 중크롬산염을 사용하지 않고 친환경 조성물을 함유하면서도 코팅시의 부착성과 방청성이 향상될 수 있도록 하는 것을 기본적인 기술적 사상으로 하고 있음을 알 수 있다. 따라서, 본 발명의 기본적인 기술적 사상의 범주 내에서 당업계의 통상의 지식을 가진 자에게 있어서는 다른 많은 변형이 가능함은 물론이다. As described above, the chrome-free chemical conversion composition for a non-ferrous metal material and the chemical conversion treatment method using the same according to the embodiment of the present invention can be used as a coating composition containing an environmentally friendly composition without using chromic acid or dichromate used in the conventional chemical treatment, It is understood that the basic technical idea is to improve the adhesion and rust prevention of the city. Therefore, many modifications may be made by those skilled in the art without departing from the scope of the present invention.
S100 : 제1단계 S200 : 제2단계
S300 : 제3단계 S400 : 제4단계
S500 : 제5단계 S600 : 제6단계
S700 : 제7단계 S800 : 제8단계
S900 : 제9단계S100: first step S200: second step
S300: third step S400: fourth step
S500: fifth step S600: sixth step
S700: Seventh Step S800: Step 8
S900: Step 9
Claims (4)
상기 탈지된 피도체를 정제수로 세척시키는 단계;
비닐포스폰산(Vinyl Phosphonic Acid)과 아크릴산(Acrylic Acid)을 혼합하여 이루어지는 코폴리머(Copolymer) 및 정제수를 혼합하여 이루어지는 크롬-프리형 화성처리액에 상온에서 30초이상 60초이하로 상기 피도체를 침적시키는 단계;
상기 침적되었던 피도체를 상온에서 5분이상 건조시키는 단계;
상기 건조된 피도체를 120℃이상 150℃이하로 5분이상 경화시키는 단계;
상기 경화된 피도체의 미관상 광택감을 위해, 상기 경화된 피도체에 클리어 도료를 이용한 상도층을 형성시키거나, 색상 도료를 이용한 상도층을 형성시키는 단계; 및
상기 상도층이 형성된 피도체를 120℃이상 150℃이하로 5분이상 건조 및 경화시키는 단계;를 포함하고,
상기 클리어 도료 또는 상기 색상 도료는,
에폭시 수지, 우레탄 수지 및 아크릴 수지를 포함하는 것을 특징으로 하는 비철금속 소재용 크롬-프리형 화성처리 방법.Degreasing the object to be treated for at least 5 minutes and not more than 10 minutes in order to remove the persistent contaminants adhered to the surface of the object while maintaining the object at 70 ° C or higher and 90 ° C or lower so as not to change the properties of the object made of the nonferrous metal;
Washing the degreased conductor with purified water;
Free chemical conversion treatment liquid obtained by mixing a copolymer comprising vinylphosphonic acid (Vinyl Phosphonic Acid) and acrylic acid (Acrylic Acid) and purified water, at a room temperature for 30 seconds to 60 seconds A depositing step;
Drying the immersed conductor at room temperature for 5 minutes or more;
Curing the dried conductor to 120 ° C or more and 150 ° C or less for 5 minutes or more;
Forming a top coat layer using a clear paint on the cured object or forming a top coat layer using a color paint for a cosmetic shine of the cured object; And
And drying and curing the conductor on which the upper layer is formed at 120 ° C or higher and 150 ° C or lower for 5 minutes or longer,
Wherein the clear paint or the color paint comprises:
An epoxy resin, a urethane resin, and an acrylic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20130151287A KR101506311B1 (en) | 2013-12-06 | 2013-12-06 | Chrome Free-typed Conversion Coating Composition for Non-Ferrous Metal and Conversion Coating Method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20130151287A KR101506311B1 (en) | 2013-12-06 | 2013-12-06 | Chrome Free-typed Conversion Coating Composition for Non-Ferrous Metal and Conversion Coating Method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101506311B1 true KR101506311B1 (en) | 2015-04-07 |
Family
ID=53032088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20130151287A KR101506311B1 (en) | 2013-12-06 | 2013-12-06 | Chrome Free-typed Conversion Coating Composition for Non-Ferrous Metal and Conversion Coating Method thereof |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101506311B1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050181225A1 (en) | 2002-03-13 | 2005-08-18 | Mathias Destarac | Use of block copolymers bearing phosphate and/or phosphonate functions as adhesion promoters or as protecting agents against the corrosion of a metallic surface |
| KR101008924B1 (en) | 2003-02-24 | 2011-01-17 | 바스프 에스이 | Polymers containing carboxylate for the treatment of metallic surfaces |
-
2013
- 2013-12-06 KR KR20130151287A patent/KR101506311B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050181225A1 (en) | 2002-03-13 | 2005-08-18 | Mathias Destarac | Use of block copolymers bearing phosphate and/or phosphonate functions as adhesion promoters or as protecting agents against the corrosion of a metallic surface |
| KR101008924B1 (en) | 2003-02-24 | 2011-01-17 | 바스프 에스이 | Polymers containing carboxylate for the treatment of metallic surfaces |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ramezanzadeh et al. | The effects of addition of poly (vinyl) alcohol (PVA) as a green corrosion inhibitor to the phosphate conversion coating on the anticorrosion and adhesion properties of the epoxy coating on the steel substrate | |
| US4074011A (en) | Topcoated phosphated bolts, nuts and washers | |
| CA2659641C (en) | Chromium-free conversion coating | |
| US10550478B2 (en) | Chromium-free conversion coating | |
| CN109023335B (en) | Film forming liquid for metal material surface conversion film and its use | |
| Liu et al. | Effect of heat treatment, top coatings and conversion coatings on the corrosion properties of black electroless Ni–P films | |
| KR101302379B1 (en) | Treating method of highly corrosion-resistant zinc complex coating plate | |
| JPH09118875A (en) | Aqueous composition for water-repellent treatment of zinc and zinc alloy and water-pepellent treatment | |
| US5372853A (en) | Treatment to improve corrosion resistance of autodeposited coatings of metallic surfaces | |
| KR101506311B1 (en) | Chrome Free-typed Conversion Coating Composition for Non-Ferrous Metal and Conversion Coating Method thereof | |
| CA2526230A1 (en) | Compositions and methods for darkening and imparting corrosion-resistant properties to zinc or other active metals | |
| JPS5852474A (en) | Coated steel material and coating method | |
| Mirabedini et al. | Adhesive strength of powder coated aluminium substrates | |
| CA2819340A1 (en) | Chromium-free conversion coating | |
| JP3842333B2 (en) | Surface treatment method for weathering steel | |
| KR20010108238A (en) | Polymer-coated metal composites by dip autopolymerization | |
| KR20010042321A (en) | Metallic material with organic composite coating excellent in corrosion resistance and coatability and reduced in finger mark adhesion and process for producing the same | |
| US6740361B1 (en) | Passivating of zinc surfaces | |
| US3118793A (en) | Method of pretreating and phosphatizing a metal surface for siccative coatings | |
| JPH0994916A (en) | Organic composite coated steel | |
| JP2001199003A (en) | Organic composite coated steel panel excellent in solvent resistance | |
| KR960007775B1 (en) | Chromate solution of controlling an eruption of a chrome and the method for making c chromate steel plate using the same | |
| JPH01110140A (en) | Composite coated steel sheet excellent in corrosion resistance and lubrication property | |
| KR20170032747A (en) | Paint composition for dry plating of automobile aluminum wheel | |
| AU2013200774B2 (en) | Compositions and methods for darkening and imparting corrosion- resistant properties to zinc or other active metals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20180320 Year of fee payment: 4 |
|
| FPAY | Annual fee payment |
Payment date: 20190320 Year of fee payment: 5 |