KR102310202B1 - Plated mas steel sheet having a patterned surface and a method for preparing it - Google Patents
Plated mas steel sheet having a patterned surface and a method for preparing it Download PDFInfo
- Publication number
- KR102310202B1 KR102310202B1 KR1020190172059A KR20190172059A KR102310202B1 KR 102310202 B1 KR102310202 B1 KR 102310202B1 KR 1020190172059 A KR1020190172059 A KR 1020190172059A KR 20190172059 A KR20190172059 A KR 20190172059A KR 102310202 B1 KR102310202 B1 KR 102310202B1
- Authority
- KR
- South Korea
- Prior art keywords
- steel sheet
- blackening
- layer
- alloy
- plated steel
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—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
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/50—Controlling or regulating the coating processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/12—Aluminium or alloys based thereon
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
- C23C2/29—Cooling or quenching
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Thermal Sciences (AREA)
- Coating With Molten Metal (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
본 발명은 강판 및 상기 강판 상에 위치하는 Al-Mg-Si 합금층을 포함하는, 패턴화된 흑색의 Al-Mg계 도금강판에 관한 것이다. 상기 Al-Mg-Si 합금층은 Al-Mg 합금상 내에 Mg-Si 합금 입자가 포함된 형태로 존재한다. 상기 Mg-Si 합금 입자는 흑화 저해층을 형성하여 도금강판의 흑화 공정시 비-흑화부를 그 표면 상에 형성한다. 또한, 본 발명은 강판 표면 상에서 Al-Mg 합금상 내에 Mg-Si 합금 입자가 포함되는 형태로 존재하는 Al-Mg-Si 합금층을 열처리하여 강판 표면 상에 Mg2Si 층을 적어도 부분적으로 형성하는 단계; 및 밀폐된 용기 내에서 상기 강판에 고온으로 수증기를 적용하여, 흑화부와 비-흑화부가 혼합된, 바람직하게는 패턴화된 흑색 도금강판을 제조하는 단계를 포함하는, 흑색도금층을 갖는 Al-Mg계 도금강판의 제조방법에 관한 것이다.The present invention relates to a patterned black Al-Mg-based plated steel sheet comprising a steel sheet and an Al-Mg-Si alloy layer positioned on the steel sheet. The Al-Mg-Si alloy layer exists in a form in which Mg-Si alloy particles are included in the Al-Mg alloy phase. The Mg-Si alloy particles form a blackening inhibiting layer to form a non-blackening portion on the surface of the plated steel sheet during the blackening process. In addition, the present invention heat-treats an Al-Mg-Si alloy layer present in a form in which Mg-Si alloy particles are included in the Al-Mg alloy phase on the surface of the steel sheet to at least partially form a Mg 2 Si layer on the surface of the steel sheet. step; and applying water vapor at a high temperature to the steel sheet in an airtight container to prepare a black plated steel sheet in which blackened and non-blackened portions are mixed, preferably patterned, Al-Mg having a black plating layer It relates to a method for manufacturing a plated steel sheet.
Description
본 발명은 MAS강판을 흑화 기술에 적용하여, Al-Mg계(MAS) 도금강판의 표면 패턴을 제조하는 방법에 관한 것이다. 본 발명에서는 흑화하지 않는 특정 합금 조직을 생성하고 이를 통해 강판 표면 상에 고급 패턴 무늬를 제조한다.The present invention relates to a method for manufacturing a surface pattern of an Al-Mg-based (MAS) plated steel sheet by applying a MAS steel sheet to blackening technology. In the present invention, a specific alloy structure that does not blacken is created and a high-grade pattern pattern is produced on the surface of the steel sheet through this.
건축자재, 자동차, 가전제품 등의 분야에서는, 고급화된 흑색 외관을 가진 도금강판이 꾸준히 개발되어 왔다. 강판의 표면을 흑화하는 방법으로서, 강판의 표면에 흑색 도료를 적용하여 흑색 코팅층을 형성하는 방법이 있지만, 이는 코팅층을 형성하는 추가적인 공정에 따른 비용 등의 문제점 및 코팅층의 불충분한 내식성 및 내후성 등의 관점에서 바람직하지 않다. 따라서, 근래에는, 용융 Zn, Al, 또는 Mg 중 하나 이상을 함유하는 도금층을 강판 표면 상에 적용하고 이를 흑화하여 흑색 도금 강판을 제조하는 방법이 우세하게 사용되고 있다. In the fields of building materials, automobiles, home appliances, and the like, plated steel sheets with advanced black appearance have been continuously developed. As a method of blackening the surface of a steel sheet, there is a method of forming a black coating layer by applying a black paint to the surface of the steel sheet, but this has problems such as cost due to the additional process of forming the coating layer, and insufficient corrosion resistance and weather resistance of the coating layer. not desirable from the point of view. Therefore, in recent years, a method of manufacturing a black plated steel sheet by applying a plating layer containing at least one of molten Zn, Al, or Mg on the steel sheet surface and blackening it has been predominantly used.
Al-Mg-Zn 도금 강판에 고온의 수증기를 24시간 이상 분무하여, 강판 표층에 얇은 흑색 피막을 형성하는 방법이 공지되어 있다. 또한, PosMAC 소재를 이용하여 높은 산소농도 하에서, 빠른 속도로 흑색 도금강판을 제조하는 기술이 공지되어 있다. 특히, MAS강판의 도금층을 고온의 수증기를 분무하여 흑화하는 기술이 공지되어 있다. 그러나, 선행 기술에서는 균일한 무패턴의 단일 흑색층을 형성하는 기술만을 개시하고 있을 뿐이다.A method of forming a thin black film on the surface layer of a steel sheet by spraying high-temperature steam for 24 hours or more on an Al-Mg-Zn plated steel sheet is known. In addition, a technique for manufacturing a black plated steel sheet at a high speed using a PosMAC material under a high oxygen concentration is known. In particular, a technique for blackening the plating layer of MAS steel sheet by spraying hot steam is known. However, the prior art only discloses a technique for forming a single black layer having a uniform non-pattern.
본 발명자는 Al-Mg-Si계 도금강판(MAS 강판)을 밀폐된 반응기 내에서 고온으로 수증기 처리시 흑화 저해층이 존재하는 특정 부분은 흑화되지 않고, 흑화 저해층이 없는 부분은 흑화되어, 미려한 표면 패턴을 생성할 수 있음을 발견하고 본 발명을 완성하게 되었다. 따라서, 본 발명은 MAS강판을 활용한 흑화 기술에 더해서, 흑화하지 않는 특정 합금 조직을 이용하여, 흑화부와 비-흑화부가 혼합된 고급 무늬를 도금강판의 표면 상에 제조하는 기술에 대한 것이다. The present inventors found that when an Al-Mg-Si-based plated steel sheet (MAS steel sheet) is steam treated at a high temperature in a sealed reactor, the specific part with the blackening inhibiting layer is not blackened, and the part without the blackening inhibiting layer is blackened, It has been discovered that a surface pattern can be created and the present invention has been completed. Therefore, the present invention relates to a technique for manufacturing a high-grade pattern in which a blackening part and a non-blackening part are mixed on the surface of a plated steel sheet using a specific alloy structure that does not blacken, in addition to the blackening technique using the MAS steel sheet.
본 발명은 강판 및 상기 강판 상에 위치하는 Al-Mg-Si 합금층을 포함하는, 패턴화된 흑색의 Al-Mg계 도금강판에 관한 것이다. 상기 Al-Mg-Si 합금층은 Al-Mg 합금상 내에 Mg-Si 합금 입자가 포함된 형태로 존재한다. 상기 Mg-Si 합금 입자는 흑화 저해층을 형성하여 도금강판의 흑화 공정시 비-흑화부를 그 표면 상에 형성한다. 상기 도금강판은 도금 강판의 총 중량을 기준으로 Si 8~10중량%, Al 88~90중량% 및 잔부 Fe를 포함하고, Al-Mg-Si 합금층은 상기 합금층의 총 중량을 기준으로 Mg 15~90중량%을 포함한다. The present invention relates to a patterned black Al-Mg-based plated steel sheet comprising a steel sheet and an Al-Mg-Si alloy layer positioned on the steel sheet. The Al-Mg-Si alloy layer exists in a form in which Mg-Si alloy particles are included in the Al-Mg alloy phase. The Mg-Si alloy particles form a blackening inhibiting layer to form a non-blackening portion on the surface of the plated steel sheet during the blackening process. The plated steel sheet includes 8 to 10% by weight of Si, 88 to 90% by weight of Al and the balance Fe based on the total weight of the plated steel sheet, and the Al-Mg-Si alloy layer is Mg based on the total weight of the alloy layer. 15 to 90% by weight.
또한, 본 발명은 강판 표면 상에서 Al-Mg 합금상 내에 Mg-Si 합금 입자가 포함되는 형태로 존재하는 Al-Mg-Si 합금층을 열처리하여 강판 표면 상에 Mg2Si 층을 적어도 부분적으로 형성하는 단계; 및 밀폐된 용기 내에서 상기 강판에 고온으로 수증기를 적용하여, 흑화부와 비-흑화부가 혼합된, 바람직하게는 패턴화된 흑색 도금강판을 제조하는 단계를 포함하는, 흑색도금층을 갖는 Al-Mg계 도금강판의 제조방법에 관한 것이다. 상기 흑화 단계에서, 부분적으로 형성된 Mg2Si 층이 흑화저해층으로 작용하여 흑화 과정에서 비-흑색부가 형성되면, 전체적으로 흑색부와 비-흑색부가 혼합되거나, 반복되거나, 바람직하게는 교번하는 패턴화된 흑색도금이 강판 표면 상에 형성된다.In addition, the present invention heat-treats an Al-Mg-Si alloy layer present in a form in which Mg-Si alloy particles are included in the Al-Mg alloy phase on the surface of the steel sheet to at least partially form a Mg 2 Si layer on the surface of the steel sheet. step; and applying water vapor at a high temperature to the steel sheet in an airtight container to prepare a black plated steel sheet in which blackened and non-blackened portions are mixed, preferably patterned, Al-Mg having a black plating layer It relates to a method for manufacturing a plated steel sheet. In the blackening step, if the partially formed Mg 2 Si layer acts as a blackening inhibiting layer and a non-black portion is formed in the blackening process, the overall black portion and the non-black portion are mixed, repeated, or preferably alternating patterning Black plating is formed on the surface of the steel sheet.
본 발명에 따르면, 도금층에서 흑화된 부분과 흑화되지 않은 부분이 혼합 및/또는 반복되거나, 교번하여 나타남으로써, 미려한 고급질감을 도금강판을 제공할 수 있다.According to the present invention, the blackened portion and the non-blackened portion in the plating layer are mixed and/or repeated, or alternately appearing, thereby providing a plated steel sheet with a beautiful, high-quality texture.
도 1은 Mg 진공도금 두께 및 열처리 시간에 따른 흑화 공정 처리(150℃ 95% 상대습도, 1시간)후의 흑화 정도를 보여준다.
도 2는 흑화 공정 후 회색부의 TEM-EDS결과를 보여준다.
도 3은 흑화 공정 후 흑색부의 TEM-EDS결과를 보여준다.
도 4는 비교예의 흑화 공정 후 결과를 보여준다.1 shows the degree of blackening after the blackening process (150° C. 95% relative humidity, 1 hour) according to the thickness of Mg vacuum plating and heat treatment time.
2 shows the TEM-EDS result of the gray part after the blackening process.
3 shows the TEM-EDS results of the black part after the blackening process.
4 shows the results after the blackening process of the comparative example.
다른 정의가 없다면 본 명세서에서 사용되는 모든 용어(기술 및 과학적 용어를 포함)는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 공통적으로 이해될 수 있는 의미로 사용될 수 있을 것이다. 명세서 전체에서 어떤 부분이 어떤 구성요소를 "포함"한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있는 것을 의미한다. 또한 단수형은 문구에서 특별히 언급하지 않는 한 복수형도 포함한다.Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings commonly understood by those of ordinary skill in the art to which the present invention belongs. When a part "includes" a certain component throughout the specification, this means that other components may be further included, rather than excluding other components, unless otherwise stated. The singular also includes the plural, unless the phrase specifically states otherwise.
또한, 도면에서 나타난 각 구성의 크기 및 두께는 설명의 편의를 위해 임의로 나타내었으므로, 본 발명이 반드시 도시된 바에 한정되지 않는다.In addition, since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the illustrated bar.
명세서 전체에서, 층, 막, 영역, 판 등의 부분이 다른 부분의 "상부"에 있다고 하거나, "~상"에 있다고 할 때, 이는 다른 부분 “바로 위에” 있는 경우뿐 아니라 그 중간에 또 다른 부분이 있는 경우도 포함한다.Throughout the specification, when a part, such as a layer, film, region, plate, etc., is referred to as being “on” or “on” another part, it means not only when it is “immediately on” another part, but also another part in between. Including cases where there are parts.
명세서 전체에서, 층, 막, 영역, 판 등의 부분이 다른 부분의 "상부"에 있다고 하거나, "~상"에 있다고 할 때, 이는 대상 부분의 위 또는 아래에 위치함을 의미하는 것이며, 반드시 중력 방향을 기준으로 상 측에 위치하는 것을 의미하는 것은 아니다.Throughout the specification, when a part, such as a layer, film, region, plate, etc., is said to be “on” or “on” another part, it means that it is located above or below the target part, and must be It does not mean that it is located on the upper side with respect to the direction of gravity.
명세서 전체에서, 별다른 정의가 없는 한, "A 층"은, 해당 층이 A만으로 이루어진 경우뿐만 아니라, A를 포함하는 경우도 포함한다.Throughout the specification, unless otherwise defined, "layer A" includes not only the case in which the corresponding layer consists only of A, but also the case in which the layer includes A.
명세서 전체에서, 별다른 정의가 없는 한, "A-B 합금층"은, 해당 층이 A-B합금만으로 이루어진 경우뿐만 아니라, A-B 합금을 포함하는 경우도 포함한다. 또한, 명세서 전체에서, 별다른 정의가 없는 한, "A-B-C 합금층"은, 해당 층이 A, B 및 C를 모두 포함하는 경우뿐만 아니라, A-B 합금 및 A-C 합금, 또는 A-B 합금 및 B-C 합금, 또는 B-C 합금 및 A-C 합금을 포함하는 경우도 포함한다.Throughout the specification, unless otherwise defined, the term "A-B alloy layer" includes not only the case in which the corresponding layer consists only of the A-B alloy, but also the case in which the layer includes the A-B alloy. Further, throughout the specification, unless otherwise defined, "ABC alloy layer" refers to an AB alloy and an AC alloy, or an AB alloy and a BC alloy, or BC, as well as when the layer includes all of A, B, and C. Also includes alloys and AC alloys.
MAS강판은 포스코에서 개발한 강한 내식성을 갖는 도금 강판으로서, 강판 표면 상에 알루미늄, 마그네슘, 및 실리콘이 함유된 물질을 코팅 및 열처리하여 제조된, 기존의 도금강판 대비 얇은 두께를 가지면서도 내식성이 우수한 도금강판이다. MAS steel sheet is a plated steel sheet with strong corrosion resistance developed by POSCO. It is manufactured by coating and heat-treating a material containing aluminum, magnesium, and silicon on the surface of the steel sheet. It is a plated steel plate.
MAS강판은 강판 상에 Al, Si, 및/또는 Mg를 포함하는 합금층을 갖는 도금 강판이다. 본 발명의 MAS 도금강판은 바람직하게는 Al-Mg-Si 합금층, Al-Mg 합금층, 및 Mg-Si 합금층을 포함하고, 선택적으로, Al-Si 합금층을 포함할 수 있다. 바람직하게는, 상기 Al-Mg-Si 합금층은 Al-Mg 합금상 내에 Mg-Si 합금 입자가 포함된 형태로 존재한다. Mg-Si 합금 입자는 Mg2Si 흑화 저해층을 형성할 수 있다.MAS steel sheet is a plated steel sheet having an alloy layer containing Al, Si, and/or Mg on the steel sheet. The MAS-coated steel sheet of the present invention preferably includes an Al-Mg-Si alloy layer, an Al-Mg alloy layer, and an Mg-Si alloy layer, and may optionally include an Al-Si alloy layer. Preferably, the Al-Mg-Si alloy layer is present in a form in which Mg-Si alloy particles are included in the Al-Mg alloy phase. The Mg-Si alloy particles may form an Mg 2 Si blackening inhibiting layer.
본 발명의 도금강판은 도금 강판의 총 중량을 기준으로 Si를 8~10중량%의 함량으로 포함하고, Al를 88~90중량%하며, 잔부로서 Fe를 포함한다. 상기 도금강판에서 Al-Mg-Si 합금층은 상기 합금층의 총 중량을 기준으로 Mg를 15~90중량%로 포함한다. 또한, Al-Mg-Si 합금층은 합금층의 총 중량을 기준으로 Al-Mg 합금 및 Mg-Si 합금을 각각 1 내지 70중량%로 포함할 수 있다.The plated steel sheet of the present invention contains Si in an amount of 8 to 10% by weight based on the total weight of the plated steel sheet, 88 to 90% by weight of Al, and Fe as the balance. In the plated steel sheet, the Al-Mg-Si alloy layer contains 15 to 90% by weight of Mg based on the total weight of the alloy layer. In addition, the Al-Mg-Si alloy layer may include an Al-Mg alloy and an Mg-Si alloy in an amount of 1 to 70 wt%, respectively, based on the total weight of the alloy layer.
본 발명은 강판 표면 상에서 Al-Mg 합금상 내에 Mg-Si 합금 입자가 포함되는 형태로 존재하는 Al-Mg 합금 및 Mg-Si 합금을 열처리하여 강판 표면 상에 Mg2Si 층을 적어도 부분적으로 형성하는 단계; 및 밀폐된 용기 내에서 상기 강판에 고온으로 수증기를 적용하여 도금강판을 흑화하는 단계로서, 상기 부분적으로 형성된 Mg2Si 층이 흑화저해층으로 작용하여 흑색부와 비-흑색부가 혼합된 형태의 도금이 강판 표면 상에 형성되는 단계를 포함하는, 흑색부와 비-흑색부가 혼합된 패턴 또는 무늬를 갖는 흑색도금층을 갖는 Al-Mg계 도금강판의 제조방법에 관한 것이다. 상기 흑화 단계에서, 부분적으로 형성된 Mg2Si 층이 흑화저해층으로 작용하여 흑화 과정에서 비-흑색부가 형성되면, 전체적으로 흑색부와 비-흑색부가 교번하는 패턴화된 흑색도금이 강판 표면 상에 형성된다.The present invention heat-treats an Al-Mg alloy and an Mg-Si alloy that are present in a form in which Mg-Si alloy particles are included in the Al-Mg alloy phase on the surface of the steel sheet to at least partially form a Mg 2 Si layer on the surface of the steel sheet step; and blackening the plated steel sheet by applying water vapor at a high temperature to the steel sheet in an airtight container, wherein the partially formed Mg 2 Si layer acts as a blackening inhibiting layer, so that a black portion and a non-black portion are mixed. It relates to a method for manufacturing an Al-Mg-based plated steel sheet having a black plating layer having a pattern or pattern in which black portions and non-black portions are mixed, comprising the step of being formed on the surface of the steel sheet. In the blackening step, when the partially formed Mg 2 Si layer acts as a blackening inhibiting layer and a non-black portion is formed in the blackening process, a patterned black plating in which the black portion and the non-black portion alternate as a whole is formed on the surface of the steel sheet do.
상기 열처리 단계는 바람직하게는 종래의 흑화 열처리 온도보다 더 높은 온도에서 수행된다. 열처리 온도는 300 내지 400℃, 바람직하게는 320 내지 375℃이다. 열처리 시간은 1분 내지 30분, 바람직하게는 3분 내지 20분, 보다 바람직하게는 5 내지 15분이다. 상기 열처리 단계에 의해, 강판 표면 상의 합금층에서 Mg2Si 층이 적어도 부분적으로 형성된다. The heat treatment step is preferably performed at a temperature higher than the conventional blackening heat treatment temperature. The heat treatment temperature is 300 to 400°C, preferably 320 to 375°C. The heat treatment time is 1 minute to 30 minutes, preferably 3 minutes to 20 minutes, and more preferably 5 minutes to 15 minutes. By the heat treatment step, the Mg 2 Si layer is at least partially formed in the alloy layer on the surface of the steel sheet.
도금 강판의 흑화 단계에서는 흑화가 진행되면서 비-흑화부와 흑화부가 보다 확실하게 대비되어 패턴이 보다 강하게 형성될 수 있다. 따라서, 흑화 정도와 패턴화 정도는 상호 비례하는 것으로 이해할 수 있다.In the blackening step of the plated steel sheet, as the blackening proceeds, the non-blackened portion and the blackened portion are more reliably contrasted to form a stronger pattern. Accordingly, it can be understood that the degree of blackening and the degree of patterning are mutually proportional.
Mg 도금의 두께, 및 열처리 단계의 온도 및 시간에 따라 흑화 정도가 결정될 수 있다. Mg 도금의 두께, 열처리 온도 및 시간은 흑화 정도에 비례할 수 있다. 따라서, 열처리 온도 및 시간을 조절하여 도금강판의 흑화 정도 및 패턴화 정도를 다양하게 변화시킬 수 있다.The degree of blackening may be determined according to the thickness of the Mg plating, and the temperature and time of the heat treatment step. The thickness, heat treatment temperature and time of Mg plating may be proportional to the degree of blackening. Therefore, the degree of blackening and patterning of the plated steel sheet can be variously changed by controlling the heat treatment temperature and time.
흑화 단계는 상기 열처리된 도금강판을 밀폐된 용기 내에서 고온의 수증기를 가함으로써 수행된다. 상기 적어도 부분적으로 형성된 Mg2Si 층은 흑화 단계에서 흑화저해층으로 작용한다. Mg2Si 층은 흑화 단계에서 비-흑화 부분을 형성하고, 이에 따라 흑색부와 비-흑색부가 교차하는 패턴화된 흑색도금이 도금강판의 표면상에 형성된다. Mg2Si의 입자가 많을수록 흑화가 더 많이 저해된다. 따라서, 합금층에 형성된 Mg2Si 입자의 함량이 불균일하므로, 생성되는 흑색 패턴의 모양은 일정하지 않을 수 있다. The blackening step is performed by applying high-temperature steam to the heat-treated plated steel sheet in a sealed container. The at least partially formed Mg 2 Si layer acts as a blackening inhibiting layer in the blackening step. The Mg 2 Si layer forms a non-blackened portion in the blackening step, whereby a patterned black plating in which the black portion and the non-black portion intersect is formed on the surface of the plated steel sheet. The more particles of Mg 2 Si, the more the blackening is inhibited. Therefore, since the content of the Mg 2 Si particles formed in the alloy layer is non-uniform, the shape of the generated black pattern may not be uniform.
흑화 단계의 온도는 105℃ 내지 200℃, 바람직하게는 140℃ 내지 160℃이다. 흑화 단계의 습도는 50% 내지 100%이고, 습도가 높을수록 더 바람직하다. 흑화 단계의 시간은 5분 내지 2시간이고, 바람직하게는 30분 내지 1시간이다. 흑화 단계에서는 Mg 합금층의 존재에 따라 흑화-비흑화가 진행되어 패턴화가 달성되고, 특히, 흑화 단계의 온도, 습도, 및 시간 변화에 따라, 그레이 색상 내지 블랙 색상 사이의 채색 조절이 가능하다. 일 구현예에서, 흑화 공정에서 습도는 95% 및 시간은 1시간이다.The temperature of the blackening step is 105°C to 200°C, preferably 140°C to 160°C. Humidity in the blackening step is 50% to 100%, and the higher the humidity, the more preferable. The time of the blackening step is 5 minutes to 2 hours, preferably 30 minutes to 1 hour. In the blackening step, blackening-non-blackening proceeds according to the presence of the Mg alloy layer to achieve patterning, and in particular, depending on the temperature, humidity, and time change of the blackening step, color control between gray color and black color is possible. In one embodiment, the humidity is 95% and the time is 1 hour in the blackening process.
흑화 단계의 온도, 습도, 및 시간의 변화에 따라 흑화 정도가 결정될 수 있다. 흑화 온도 및 시간은 흑화 정도에 비례할 수 있다. 따라서, 흑화 온도 및 시간을 조절하여 도금강판의 흑화 정도를 연회색에서 완전한 흑색까지 변화시킬 수 있다.The degree of blackening may be determined according to changes in temperature, humidity, and time of the blackening step. The blackening temperature and time may be proportional to the blackening degree. Therefore, by controlling the blackening temperature and time, the degree of blackening of the plated steel sheet can be changed from light gray to completely black.
이하, 본 발명의 구현예를 상세히 설명하기로 한다. 다만, 이는 예시로서 제시되는 것으로, 이에 의해 본 발명이 제한되지는 않으며 본 발명은 후술할 청구범위의 범주에 의해 정의될 뿐이다.Hereinafter, embodiments of the present invention will be described in detail. However, this is provided as an example, and the present invention is not limited thereto, and the present invention is only defined by the scope of the claims to be described later.
실시예Example
실시예Example 1 내지 9 1 to 9
냉연강판 상에 Si 9 중량%, Al 88 중량%, 및 잔부로 Fe를 포함하는 Al 도금층을 포함하는 강판 9개를 준비하였다. 상기 강판들을 공급장치를 통해 진공용기 내로 공급하면서, 진공 용기 내에 설치된 전자기부양 소스를 통해 Al 도금층 상에 Mg를 Mg 진공도금 두께가 3개당 1.0㎛, 1.5㎛, 및 2.0㎛가 되도록 코팅하였다. 코팅이 완료된 후, 계속해서 강판을 이동시켜 대기 중으로 배출한 뒤, 대기 중에서 유도가열장치를 이용하여 각각의 강판들에 대해 400℃로 2분, 3분 및 4분간 열처리하였다. 열처리가 완료된 후 계속해서 강판을 이송시켜 제조된 합금 코팅 강판을 수득하였다. 이 강판들을 진공용기 내로 다시 공급한 후, 95% 상대습도 하, 150℃℃ 에서 수증기를 가하였다. 도 1에서 보여지는 바와 같이, 다양한 흑화-비흑화 부분이 불균일하게 형성된 패턴화된 흑화 도금강판이 수득되었다. 이하 표에서는 각 실시예에 따른 흑화 및 패턴화 정도를 상대적인 강도로 보여준다.9 steel sheets including 9 wt% Si, 88 wt% Al, and an Al plating layer containing Fe as the balance were prepared on the cold-rolled steel sheet. While supplying the steel sheets into the vacuum vessel through the supply device, Mg was coated on the Al plating layer through an electromagnetic levitation source installed in the vacuum vessel so that the thickness of Mg vacuum plating was 1.0 μm, 1.5 μm, and 2.0 μm per 3 pieces. After the coating was completed, the steel sheets were continuously moved and discharged to the atmosphere, and then each steel sheet was heat-treated at 400° C. for 2 minutes, 3 minutes, and 4 minutes in the atmosphere using an induction heating device. After the heat treatment was completed, the steel sheet was continuously transferred to obtain a manufactured alloy coated steel sheet. After these steel sheets were fed back into the vacuum vessel, steam was added at 150°C under 95% relative humidity. As shown in Fig. 1, a patterned blackened plated steel sheet in which various blackening-non-blackening portions were non-uniformly formed was obtained. The table below shows the degree of blackening and patterning according to each Example as relative strength.
상기 실시예에서 보시는 바와 같이, 도금강판의 전체적인 흑화 정도는 Mg 진공도금 두께에 비례하였다. 다만, 각각의 Mg 진공도금 두께를 갖는 도금강판에서 비-흑화 부분과 흑화 부분의 패턴 강도는 열처리 시간에 비례하는 것으로 나타났다. 상기 흑화 부분과 비-흑화 부분을 TEM-EDS로 관찰하였다. 그 결과는 도 2 및 3에 도시되어 있다. 도 2는 흑화 공정 후 회색부(비-흑화부)의 TEM-EDS결과를 보여주는데, Mg2Si 층이 많을수록 흑화가 저해되어, 회색부를 형성하는 것을 알 수 있었다. 도 3은 흑화 공정 후 흑색부의 TEM-EDS결과를 보여주는데, Mg가 많을수록 강하게 흑화되는 것을 알 수 있었다.As shown in the above examples, the overall blackening degree of the plated steel sheet was proportional to the thickness of the Mg vacuum plating. However, in the plated steel sheet having each Mg vacuum plating thickness, the pattern strength of the non-blackened portion and the blackened portion was found to be proportional to the heat treatment time. The blackened portion and the non-blackened portion were observed by TEM-EDS. The results are shown in Figures 2 and 3. 2 shows the TEM-EDS results of the gray part (non-blackening part) after the blackening process. As the Mg 2 Si layer increases, the blackening is inhibited, and it can be seen that the gray part is formed. 3 shows the TEM-EDS result of the black part after the blackening process, it was found that the more Mg, the stronger the blackening.
비교예comparative example
실시예 1 내지 9와 동일한 공정으로 MAS강판을 제조하되, Mg PVD 진공도금 후 열처리 단계는 250℃에서 60분간 수행하였다. 열처리 후, 흑화 공정으로서 150℃, 95% RH, 1시간 처리 후 도금강판의 표면의 흑화 정도를 살펴보았다. 도 4에서 보이는 바와 같이, 표면에 비-흑화부가 없고, 패턴없이 균일한 흑색의 모습을 확인할 수 있었다. MAS steel sheet was manufactured in the same process as in Examples 1 to 9, but the heat treatment step after vacuum plating of Mg PVD was performed at 250° C. for 60 minutes. After heat treatment, as a blackening process, the degree of blackening of the surface of the plated steel sheet was examined after treatment at 150° C., 95% RH, and 1 hour. As shown in FIG. 4 , there was no non-blackening part on the surface, and a uniform black appearance was confirmed without a pattern.
Claims (10)
상기 강판 상에 위치하는 Al-Mg-Si 합금층
을 포함하는, 흑색부와 비-흑색부가 혼합된 표면을 갖는 Al-Mg계 도금강판으로서,
상기 Al-Mg-Si 합금층은 상기 합금층 내에 Mg2Si 층을 적어도 부분적으로 포함하고, Mg2Si 층이 흑화저해층으로 작용하여 비-흑색부를 형성한,
Al-Mg계 도금강판.grater; and
Al-Mg-Si alloy layer positioned on the steel plate
As an Al-Mg-based plated steel sheet having a surface in which a black portion and a non-black portion are mixed, comprising:
To form a black portion, wherein the Al-Mg-Si alloy layer comprises a Mg 2 Si alloy layer in the layer at least in part, to the Mg 2 Si layer acts as a blackening layer is not inhibited
Al-Mg-based plated steel sheet.
밀폐된 용기 내에서 상기 강판에 수증기를 고온에서 적용하여 도금강판을 흑화하는 단계로서, 상기 부분적으로 형성된 Mg2Si 층이 흑화저해층으로 작용하여 흑색부와 비-흑색부가 혼합된 형태의 도금이 강판 표면 상에 형성되는 단계
를 포함하는, 흑색부와 비-흑색부가 혼합된 표면을 갖는 Al-Mg계 도금강판의 제조방법.A step of applying and heat-treating Al-Mg alloy and Mg-Si alloy on the surface of the steel sheet so that Mg-Si alloy particles are included in the Al-Mg alloy phase, and Mg 2 Si on the surface of the steel sheet by the heat treatment at least partially forming a layer;
A step of blackening the plated steel sheet by applying water vapor to the steel sheet at a high temperature in a closed container, wherein the partially formed Mg 2 Si layer acts as a blackening inhibiting layer, so that a black portion and a non-black portion are mixed. Formed on the steel plate surface
A method of manufacturing an Al-Mg-based plated steel sheet having a surface in which black portions and non-black portions are mixed, comprising:
밀폐된 용기 내에서 상기 강판에 수증기를 고온에서 적용하여 도금강판을 흑화하는 단계로서, 상기 부분적으로 형성된 Mg2Si 층이 흑화저해층으로 작용하여 흑색부와 비-흑색부가 혼합된 형태의 도금이 강판 표면 상에 형성되는 단계
를 포함하는, Al-Mg계 도금강판의 표면에 흑색부와 비-흑색부가 혼합된 무늬를 형성하는 방법.A step of applying and heat-treating Al-Mg alloy and Mg-Si alloy on the surface of the steel sheet so that Mg-Si alloy particles are included in the Al-Mg alloy phase, and Mg 2 Si on the surface of the steel sheet by the heat treatment at least partially forming a layer; and
A step of blackening the plated steel sheet by applying water vapor to the steel sheet at a high temperature in a closed container, wherein the partially formed Mg 2 Si layer acts as a blackening inhibiting layer, so that a black portion and a non-black portion are mixed. Formed on the steel plate surface
A method of forming a pattern in which a black portion and a non-black portion are mixed on the surface of an Al-Mg-based plated steel sheet, comprising a.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020190172059A KR102310202B1 (en) | 2019-12-20 | 2019-12-20 | Plated mas steel sheet having a patterned surface and a method for preparing it |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020190172059A KR102310202B1 (en) | 2019-12-20 | 2019-12-20 | Plated mas steel sheet having a patterned surface and a method for preparing it |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20210079858A KR20210079858A (en) | 2021-06-30 |
KR102310202B1 true KR102310202B1 (en) | 2021-10-06 |
Family
ID=76602529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020190172059A KR102310202B1 (en) | 2019-12-20 | 2019-12-20 | Plated mas steel sheet having a patterned surface and a method for preparing it |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR102310202B1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2670961B2 (en) | 1993-03-19 | 1997-10-29 | 茂雄 依田 | Method of manufacturing decorative body |
KR101829766B1 (en) * | 2016-04-14 | 2018-02-19 | 주식회사 포스코 | Alloy-coated steel sheet and method for manufacturing the same |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6072952B1 (en) * | 2016-03-01 | 2017-02-01 | 日新製鋼株式会社 | Method for producing black-plated steel sheet, apparatus for producing black-plated steel sheet, and system for producing black-plated steel sheet |
-
2019
- 2019-12-20 KR KR1020190172059A patent/KR102310202B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2670961B2 (en) | 1993-03-19 | 1997-10-29 | 茂雄 依田 | Method of manufacturing decorative body |
KR101829766B1 (en) * | 2016-04-14 | 2018-02-19 | 주식회사 포스코 | Alloy-coated steel sheet and method for manufacturing the same |
Also Published As
Publication number | Publication date |
---|---|
KR20210079858A (en) | 2021-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR20200075778A (en) | Alloy-coated steel sheet and manufacturing method of the same | |
KR101439694B1 (en) | Zn-Mg ALLOY COATED STEEL SHEET AND MEHTDOD FOR MANUFACTURING THE SAME | |
KR101359259B1 (en) | Zn-Mg ALLOY PLATED STEEL SHEET HAVING EXCELLENT BLACKENING RESISTANCE AND COATING ADHESION, AND METHOD FOR MANUFACTURING THE SAME | |
JP6295329B2 (en) | Magnesium-aluminum coated steel sheet and method for producing the same | |
US4542048A (en) | Powder metal and/or refractory coated ferrous metals | |
KR20190140030A (en) | Colored glazing and method for obtaining it | |
KR102310202B1 (en) | Plated mas steel sheet having a patterned surface and a method for preparing it | |
JP6742524B2 (en) | Zn-Mg alloy plated steel with excellent corrosion resistance and plating adhesion | |
CA2290073A1 (en) | Galvannealed steel sheet and manufacturing method | |
JP2815643B2 (en) | Colored titanium material which is hard to be scratched and has good adhesion and a method for producing the same | |
JPS61143594A (en) | Manufacture of blackened steel sheet | |
US20200002800A1 (en) | Black plated steel sheet and manufacturing method therefor | |
RU2658775C2 (en) | Enhanced technique for production of golden bronze by inter-diffusion of tin and copper under controlled conditions | |
US11555240B2 (en) | Black plated steel sheet and manufacturing method thereof | |
JP2001089838A (en) | Aluminum-zinc plated steel sheet excellent in surface appearance | |
KR102240121B1 (en) | Color implementing method of metal surface and surface color implemented metal panel by tilted dry thin film deposition process | |
KR102078700B1 (en) | Pot roll in high corrosion resistance aluminum alloy steel plate manufacturing equipment and method for manufacturing the same | |
KR20230081298A (en) | Blackened steel sheet having antimicrobial and antiviral properties and method of manufacturing the same | |
KR20160103671A (en) | The metal case for electronic appliance with color developing surface and Method of manufacturing the same | |
TW201708578A (en) | Coating object and the method thereof | |
JPH09143679A (en) | Black zinc-magnesium plated steel sheet and its production | |
CN109518142A (en) | A kind of PVD technique for vacuum coating of aluminum alloy surface | |
JPS63297544A (en) | Production of alloyed hot-dipped galvanized sheet steel | |
JPS6156270A (en) | Method for hot dip galvanizing dead soft steel | |
JPH01142076A (en) | Zn-fe alloy plated steel sheet having superior workability and corrosion resistance and production thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant |