KR20200002111A - Painting method and paint for metal products - Google Patents
Painting method and paint for metal products Download PDFInfo
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- KR20200002111A KR20200002111A KR1020180075261A KR20180075261A KR20200002111A KR 20200002111 A KR20200002111 A KR 20200002111A KR 1020180075261 A KR1020180075261 A KR 1020180075261A KR 20180075261 A KR20180075261 A KR 20180075261A KR 20200002111 A KR20200002111 A KR 20200002111A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
- B05D1/06—Applying particulate materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/007—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
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Abstract
Description
본 발명은 금속제품의 도장 방법 및 도장 도료에 관한 것으로, 보다 상세하게는 금속제품의 전체에 분체도장 공정이 이루어지고, 분체도장 공정 전에 금속제품의 코너, 틈새 등에 페인트 조색용 색소, 시너, 워시 프라이머가 배합된 액체 도료를 수작업으로 도포하고 액체 도료와 같은 색으로 분체도장한 후 열처리 공정과 건조 공정을 거쳐 분체도장 공정으로 금속제품 전체의 도막 두께를 일정하게 할 수 있으며 분체도장으로 도막을 형성할 수 없는 코너, 틈새, 겹쳐지는 부분까지 도막을 형성할 수 있는 금속제품의 도장 방법 및 도장 도료에 관한 것이다.The present invention relates to a method for coating a metal product and to a coating paint, and more particularly, a powder coating process is performed on the entire metal product, and the coloring, color, thinner, wash, etc. for the corners and crevices of the metal product before the powder coating process. Apply liquid coating material mixed with primer by hand, powder coating in the same color as liquid coating, and then heat treatment process and drying process to make the thickness of the whole metal product uniform through powder coating process, and form coating film by powder coating The present invention relates to a coating method and a coating material for metal products which can form a coating film up to corners, gaps, and overlapping portions.
일반적으로 금속제품 특히 자동차 등의 외관에 도막을 형성하는 도장 방법에 분체도장 공정이 이루어지는데 특히 정전 분체도장이 가장 많이 사용되고 있으며, 이 방법은 분체가 정전 인력에 의해 피도장물에 흡인되어 가열 용해됨으로써 도막을 만든다.In general, the powder coating process is applied to a coating method for forming a coating film on the exterior of metal products, especially automobiles. In particular, electrostatic powder coating is most commonly used. In this method, powder is attracted to the coated object by electrostatic attraction and heated to be dissolved. By making a coating film.
이러한 분체도장은 용제를 사용하지 않기 때문에 취기나 대기오염, 공해가 없고 화재의 위험성도 적음은 물론 1회 도포로 소정의 막 두께를 얻을 수 있으며, 공정이 단축된다.Since the powder coating does not use a solvent, there is no odor, air pollution or pollution, there is little risk of fire, and a predetermined coating thickness can be obtained by one coating, and the process is shortened.
또한, 작업성이 좋고 자동화하기 쉬워 매우 간편하고 단시간에 도막을 형성할 수 있는 장점이 있다.In addition, the workability is good and easy to automate, there is an advantage that can form a very simple coating film in a short time.
이러한 분체도장의 일예로 공개특허 제10-2008-0061326호 '도장된 데크플레이트 및 그의 도장방법'을 살펴보면 데트플레이트를 도장하기 전에 도장될 표면을 처리하는 전처리단계, 분체도료를 이용하여 전처리된 데크플레이트의 도장면을 도장하는 분체도장단계, 분체도장된 데크플레이트를 건조하는 건조단계, 및 건조된 데크플레이트를 해열하는 해열단계를 포함하는 데크플레이트 도장방법에 관한 것이다. As an example of such a powder coating, when looking at the 'Painted deck plate and its coating method', the pre-treatment step of treating the surface to be coated before coating the deck plate, pre-treated deck using powder coating The present invention relates to a deck plate coating method including a powder coating step of coating a coating surface of a plate, a drying step of drying a powder-coated deck plate, and an antipyretic step of dissipating the dried deck plate.
이때, 전처리단계는 공업용 세정제를 사용한 고압살수 후 고온 건조하는 것으로써 아연도 도금 강판의 내구성을 강화하고, 여러가지 착색으로 지하주차장, 반도체 현장, 노출현장 및 일반건물에 다양하게 적용가능한 아연도 강판 하부 도장된 데크플레이트를 제공하는 효과를 갖는다At this time, the pre-treatment step is to dry the high temperature after high-pressure spraying using industrial cleaning agent to strengthen the durability of the galvanized steel sheet, and various colors can be applied to underground parking lot, semiconductor site, exposed site and general building under the galvanized steel sheet. Has the effect of providing a painted deck plate
또한, 공개특허 제10-2014-0003202호 '분체도장방법 및 그로부터 제조된 분체 도막'의 경우 분체도장방법은 피도물 준비단계; 상기 피도물의 표면 전처리단계; 상기 표면 전처리된 피도물을 분체도료 분무단계; 상기 분무단계 이후 마이크로파를 이용한 제1열처리 및 제2열처리 수행단계; 및 냉각단계;를 포함하는 것으로서, 피도물의 표면 청결도를 높이기 위하여, 분체도료 분무단계이전에, 전처리단계를 선행함으로써, 분체 도막의 결함을 없애고 도장의 효율성을 높여, 피도물의 방청효과를 구현할 수 있다 또한, 열처리단계를 최적화하여 분체도료의 고착성을 높여 발색성을 향상시킬 수 있다 나아가, 본 발명의 분체도장방 법으로부터 품질이 개선된 분체 도막은 시설물유지관리업, 페인트업, 도장업, 건설업, 조선업, 자동차업, 해양플랜트, 파이프라인업, 농기구업, 병원, 방위산업체에 유용하다.In addition, in the case of 'Powder coating method and a powder coating film prepared therefrom', Patent Publication No. 10-2014-0003202 is a powder preparation step; Surface pretreatment of the workpiece; Powder coating spraying the surface pretreated coating material; Performing a first heat treatment and a second heat treatment using microwaves after the spraying step; And a cooling step, in order to increase the surface cleanliness of the coating material, prior to the powder coating spraying step, the pretreatment step is preceded, thereby eliminating defects of the powder coating film and increasing the efficiency of coating, thereby realizing the rustproofing effect of the coating material. In addition, it is possible to improve the color development by improving the adhesion of the powder coating by optimizing the heat treatment step Furthermore, the powder coating film with improved quality from the powder coating method of the present invention facilities maintenance management, paint, painting, construction, shipbuilding, automobile It is useful for industry, offshore plant, pipeline, farm equipment, hospital and defense industry.
상술한 종래 도장공정은 분체 도막을 형성하는 것으로 제품의 형상이 복잡하고 코너, 틈새 등이 많은 제품의 경우 그 코너, 틈새 등에 균일한 도막이 형성되지 않아 제품의 부식이 발생할 우려가 있었다.The above-described conventional coating process is to form a powder coating film, the product of the product is complicated shape, many corners, gaps, etc., there is a concern that the corrosion of the product may occur because a uniform coating film is not formed in the corners, gaps and the like.
상기와 같은 종래의 문제점을 해소하기 위하여 안출된 본 발명은, 분체도장의 전처리 공정에서 금속 제품의 코너, 틈새 부분 등에 분체와 같은 색의 페인트 조색용 색소, 시너, 워시 프라이머를 배합한 액체 도료를 수작업으로 도포한 후 분체도장 공정을 시행하여 전체적으로 균일한 도막을 형성함은 물론 분체도장을 도막이 형성되기 어려운 부분까지 도막을 형성하여 특히 금속 제품이 부식되는 것을 미연에 방지하도록 하는데 그 목적이 있다.In order to solve the above-mentioned problems, the present invention provides a liquid paint containing a color pigment, thinner, and wash primer, such as powder, in the corners and crevices of metal products in the pretreatment process of powder coating. After coating by hand, the powder coating process is performed to form a uniform coating as a whole, as well as to form a coating film to a portion where the coating film is difficult to form, especially to prevent corrosion of metal products in advance.
상기와 같은 목적을 달성하기 위한 본 발명의 금속제품의 도장 방법 및 도장 도료는, 금속제품의 도장처리는 분체도장 공정으로 이루어지고, 상기 분체도장 공정 이전에 금속제품의 코너, 틈새에 액체 도료를 수작업으로 도포하는 전처리 공정을 포함하는 것을 특징으로 한다.In order to achieve the above object, the coating method and the coating material of the metal product of the present invention, the coating treatment of the metal product is made of a powder coating process, the liquid coating on the corners, gaps of the metal product before the powder coating process It is characterized by including the pretreatment process of apply | coating manually.
이때, 상기 전처리 공정 이후에 금속제품의 전체에 분체를 분사하여 도막을 형성하는 분체도장 공정; 상기 분체도장 공정 이후에 180℃ ~ 200℃에서 10 ~ 20분 열처리하는 열처리 공정; 상기 열처리 공정 이후에 10 ~ 20분 자연 건조하는 건조 공정을 포함하는 것을 특징으로 한다.At this time, the powder coating step of forming a coating film by spraying the powder on the entire metal product after the pretreatment step; A heat treatment step of heat treatment at 180 ° C. to 200 ° C. for 10 to 20 minutes after the powder coating process; After the heat treatment step is characterized in that it comprises a drying step of natural drying for 10 to 20 minutes.
그리고, 상기 액체 도료는 페인트 조색용 색소 40 ~ 60 중량부, 시너(thinner) 20 ~ 40 중량부, 워시 프라이머(wash primer) 15 ~ 25 중량부로 구성된다.In addition, the liquid paint is composed of 40 to 60 parts by weight of paint coloring pigment, 20 to 40 parts by weight of thinner, and 15 to 25 parts by weight of wash primer.
이러한 본 발명에 의하면, 복잡한 형태의 금속 제품의 도막을 균일하게 형성함은 물론 코너, 틈새 등 분체도장으로 도막을 형성하기 어려운 부분까지 도막을 형성하여 제품의 품질을 향상시키고 부식을 방지하는 효과가 있다.According to the present invention, as well as uniformly forming a coating film of a metal product of a complex form, forming a coating film up to the part difficult to form the coating film by powder coating, such as corners, gaps to improve the quality of the product and prevent corrosion have.
도 1은 본 발명에 따른 금속제품의 도장 방법의 흐름도.1 is a flow chart of the coating method of a metal product according to the present invention.
이하 본 발명에 따른 금속제품의 도장 방법 및 도장 도료를 첨부된 도면을 참고로 하여 상세히 기술되는 실시 예들에 의해 그 특징들을 이해할 수 있을 것이다.With reference to the accompanying drawings, a coating method and a coating paint of a metal product according to the present invention will be understood by the embodiments described in detail.
본 발명은 다양한 변경을 가할 수 있고 여러 가지 형태를 가질 수 있는바, 실시 예들을 본문에 상세하게 설명하고자 한다. 그러나 이는 본 발명을 특정한 개시 형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술범위에 포함되는 모든 변경, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다.As the inventive concept allows for various changes and numerous embodiments, the embodiments will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.
먼저, 본 발명에 따른 금속제품은 자동차 등 다양한 부품의 조립 및 결합으로 이루어진 것으로 분체도장에 의해 부품이 틈새나 접힌 부위 등 균일한 도막이 형성되지 못하여 부식이 발생되어 주위의 도막이 벗겨지는 등의 문제점을 개선하기 위한 것이다.First, the metal products according to the present invention are made by assembling and combining various parts such as automobiles, and the powder coating prevents a uniform coating film such as a gap or a folded part from being formed, which causes corrosion and peeling off of the surrounding coating film. It is to improve.
따라서, 본 발명에 따른 금속제품의 도장 방법은 금속제품의 도장처리는 분체도장 공정(S200)을 포함하여 이루어지고, 상기 분체도장 공정(S200) 이전에 금속제품의 코너, 틈새에 액체 도료를 수작업으로 도포하는 전처리 공정(S100)을 포함하는 것을 특징으로 한다.Therefore, the coating method of the metal product according to the present invention is a coating process of the metal product comprises a powder coating process (S200), before the powder coating process (S200) before the liquid paint on the corners, gaps of the metal product by hand It characterized in that it comprises a pretreatment step (S100) to be applied.
이때, 상기 액체 도료는 분체도장 공정(S200)의 분체 색상과 같은 색으로 도포된 액체 도료의 상부에 분체도장 공정(S200)에 의해 제품 전체에 균일한 도막을 형성하게 된다.At this time, the liquid paint is to form a uniform coating film on the whole product by the powder coating process (S200) on top of the liquid coating applied in the same color as the powder color of the powder coating process (S200).
물론, 상기 전처리 공정(S100)은 다양한 형태의 페인트 붓 등으로 얇게 펴서 바르는 것으로 비교적 도막의 두께가 두껍게 형성되는 분체도장 공정(S200) 이후에도 육안으로 두께의 차이를 구분할 수 없게 되어 균일한 도막을 형성할 수 있는 것이다.Of course, the pre-treatment process (S100) by applying a thin spread with a paint brush, etc. of various forms, even after the powder coating process (S200) that the thickness of the coating film is formed relatively thick, the naked eye can not distinguish the difference in thickness to form a uniform coating film You can do it.
이러한 상기 전처리 공정(S100) 이후에 금속제품의 전체에 분체를 분사하여 도막을 형성하는 분체도장 공정(S200); 상기 분체도장 공정(S200) 이후에 180℃ ~ 200℃에서 10 ~ 20분 열처리하는 열처리 공정(S300); 상기 열처리 공정(S300) 이후에 10 ~ 20분 자연 건조하는 건조 공정(S400)을 포함한다.A powder coating step (S200) of forming a coating film by spraying powder on the entire metal product after the pretreatment step (S100); A heat treatment step (S300) of performing heat treatment for 10 to 20 minutes at 180 ° C. to 200 ° C. after the powder coating step (S200); After the heat treatment step (S300) includes a drying step (S400) for natural drying for 10 to 20 minutes.
물론, 상기 건조 공정(S400) 이후 코팅 작업이 선택적으로 이루어질 수 있다.Of course, the coating operation may be selectively performed after the drying process (S400).
한편, 상기 분체도장 공정(S200)으로 금속제품의 전체에 균일하게 분체를 분사하는 것을 공지된 분체도장 공정(S200)과 같이 정전 분체도장 방법으로 자동 분사하게 되어 상세한 설명은 생략한다.On the other hand, in the powder coating process (S200) to uniformly spray the powder throughout the metal product, as in the known powder coating process (S200) is automatically sprayed by the electrostatic powder coating method, a detailed description thereof will be omitted.
그리고, 열처리 부스 등 180℃ ~ 200℃에서 10 ~ 20분 열처리한 후 상온에서 10 ~ 20분 자연 건조하는 간편한 방법으로 제품 전체에 균일한 도막을 형성할 수 있게 된다.In addition, after the heat treatment for 10 to 20 minutes at 180 ℃ ~ 200 ℃, such as a heat treatment booth it is possible to form a uniform coating on the whole product by a simple method of natural drying at room temperature for 10 to 20 minutes.
상기와 같은 열처리 공정(S300) 및 건조 공정(S400)은 각각 180℃ ~ 200℃ 온도와 10 ~ 20분의 건조 시간을 거치며 열처리에 200℃이상, 건조에 20분일 경우 도막에 기포가 발생하거나 원하는 색의 도막이 형성되지 않는 것을 방지할 수 있다.The heat treatment step (S300) and the drying step (S400) as described above undergoes a drying time of 180 ° C. to 200 ° C. and a drying time of 10 to 20 minutes, respectively, when bubbles are generated in the coating film at 200 ° C. or more and 20 minutes to dry. It can prevent that a colored coating film is not formed.
열처리 장치가 구비된 부스 등에서 열처리가 이루어지며, 자연건조 200℃이상 또는 건조 시간이 10분 이하일 경우 도막에 기포가 발생하거나 색이 변하는 The heat treatment is performed in a booth equipped with a heat treatment device, and when bubbles are naturally dried at 200 ° C. or when the drying time is 10 minutes or less, bubbles are generated or colors change in the coating film.
이와 더불어 상기 전처리 공정(S100)의 페인트 조색용 색소 40 ~ 60 중량부, 시너(thinner) 20 ~ 40 중량부, 워시 프라이머(wash primer) 15 ~ 25 중량부로 구성되는 것을 특징으로 한다.In addition, 40 to 60 parts by weight of the paint coloring pigment in the pretreatment step (S100), 20 to 40 parts by weight of thinner (thinner), wash primer (wash primer) is characterized in that consisting of 15 to 25 parts by weight.
물론, 상기 페인트 조색용 색소는 분체도장 공정(S200)의 분체와 같은 색소를 사용하며 시중에서 판매되는 표준 조색제를 사용하며, 시너는 도료희석용 라카시너를 사용한다.Of course, the paint coloring pigment uses a pigment such as powder in the powder coating process (S200), and uses a commercially available standard coloring agent, and the thinner uses a lacquer for paint dilution.
또한, 금속제품의 표면에 식각(蝕刻)효과 및 부착성이 우수하며, 각종 상도에 적용되는 워시 프라이머는 한국표준협회 KS 규격에 맞는 제품을 사용하는 것이 바람직하다.In addition, it is excellent in the etching effect and adhesion on the surface of the metal product, wash primer applied to various top coats, it is preferable to use a product that meets the KS standards of the Korean Standards Association.
이와 같은 시너와 워시 프라이머의 배합비가 각각 40중량부 이상, 25 중량부 이상이 경우 열처리 과정에서 기포가 발생하여 도막이 거칠어질 우려가 있다.When the blending ratio of the thinner and the wash primer is 40 parts by weight or more and 25 parts by weight or more, there is a fear that bubbles are generated during the heat treatment process and the coating film becomes rough.
이와 같이 배합된 상기 액체 도료를 분체도장에 의해 균일하게 도막이 형성되기 곤란한 복잡한 제품의 틈새, 결합부, 코너 등에 도포한 후 분체도장의 일반적인 과정을 거쳐 보다 금속 제품의 전체적인 표면에 균일한 도막을 형성함으로써 부식을 방지하여 제품을 장시간 사용할 수 있게 된다.The liquid coating blended in this way is applied to the gaps, joints, corners, etc. of a complex product which is difficult to form a uniform coating film by powder coating, and then a uniform coating film is formed on the entire surface of the metal product through the general process of powder coating. This prevents corrosion and enables the product to be used for a long time.
이상에서와 같이 상술한 실시예는 본 발명의 가장 바람직한 예에 대하여 설명한 것이지만 상기 실시예에만 한정되는 것은 아니며, 본 발명의 기술사상을 벗어나지 않는 범위 내에서 다양한 변형이 가능하다는 것은 당업자에게 있어서 명백한 것이다.As described above, the above-described embodiments are described with reference to the most preferred examples of the present invention, but are not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications can be made without departing from the technical spirit of the present invention. .
S100: 전처리 공정
S200: 분체도장 공정
S300: 열처리 공정
S400: 건조 공정S100: pretreatment step S200: powder coating step
S300: heat treatment step S400: drying step
Claims (3)
상기 전처리 공정(S100) 이후에 금속제품의 전체에 분체를 분사하여 도막을 형성하는 분체도장 공정(S200);
상기 분체도장 공정(S200) 이후에 180℃ ~ 200℃에서 10 ~ 20분 열처리하는 열처리 공정(S300);
상기 열처리 공정(S300) 이후에 10 ~ 20분 자연 건조하는 건조 공정(S400)을 포함하는 것을 특징으로 하는 금속제품의 도장 방법.The method of claim 1,
A powder coating step (S200) of forming a coating film by spraying powder on the entire metal product after the pretreatment step (S100);
A heat treatment step (S300) of performing heat treatment for 10 to 20 minutes at 180 ° C. to 200 ° C. after the powder coating step (S200);
Coating method of a metal product, characterized in that it comprises a drying step (S400) for 10 to 20 minutes natural drying after the heat treatment step (S300).
상기 액체 도료는 페인트 조색용 색소 40 ~ 60 중량부, 시너(thinner) 20 ~ 40 중량부, 워시 프라이머(wash primer) 15 ~ 25 중량부로 구성되는 것을 특징으로 하는 금속제품의 도장 도료.
The method of claim 1,
The liquid paint is a paint coating for metal products, characterized in that composed of 40 to 60 parts by weight of paint coloring pigment, 20 to 40 parts by weight of thinner, 15 to 25 parts by weight of wash primer.
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| KR20140003202A (en) * | 2012-06-29 | 2014-01-09 | 이은주 | Powder coating method and powder coated film manufactured thereby |
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| KR20140003202A (en) * | 2012-06-29 | 2014-01-09 | 이은주 | Powder coating method and powder coated film manufactured thereby |
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