KR20200076480A - High strength steel wire and the method for manufacturing the same - Google Patents

High strength steel wire and the method for manufacturing the same Download PDF

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KR20200076480A
KR20200076480A KR1020180165607A KR20180165607A KR20200076480A KR 20200076480 A KR20200076480 A KR 20200076480A KR 1020180165607 A KR1020180165607 A KR 1020180165607A KR 20180165607 A KR20180165607 A KR 20180165607A KR 20200076480 A KR20200076480 A KR 20200076480A
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nickel
steel sheet
coating layer
metal coating
forming
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KR1020180165607A
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Korean (ko)
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김중규
조재동
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주식회사 포스코
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Publication of KR20200076480A publication Critical patent/KR20200076480A/en

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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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/021—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal alloy layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

The present invention provides a nickel-plated steel plate with improved corrosion resistance and chemical resistance through a method of forming a metal-coated layer containing nickel before a nickel-plated layer is formed. According to an embodiment of the present invention, the manufacturing method of a nickel-plated steel plate includes the following steps of: forming the metal-coated layer on a cold-rolled steel plate; and forming the nickel-plated layer on the metal-coated layer.

Description

니켈 도금강판 및 그 제조방법{HIGH STRENGTH STEEL WIRE AND THE METHOD FOR MANUFACTURING THE SAME}Nickel plated steel sheet and its manufacturing method{HIGH STRENGTH STEEL WIRE AND THE METHOD FOR MANUFACTURING THE SAME}

본 발명은 니켈 도금강판에 관한 것이다.The present invention relates to a nickel plated steel sheet.

철강소재에 있어서 니켈을 사용하는 이유는 Fe소재의 부식을 막기 위한 것으로, 최근에는 니켈 층 위의 표면처리를 통해 고내식성을 부여하는 방법과 함께 합금도금층 개발 등이 이루어지고 있다.The reason for using nickel in the steel material is to prevent corrosion of the Fe material, and recently, an alloy plating layer has been developed along with a method of providing high corrosion resistance through surface treatment on the nickel layer.

냉연강판 위에 니켈을 도금하여 니켈도금강판이 제조되고 있고, 이러한 니켈도금강판의 경우는 2차 전지용으로 사용되고 있다. Ni 도금재의 경우 Fe와 Ni 합금층을 형성하는 등 내화학성등 추가적인 물성 우위를 위해 많은 기술적인 처리가 이루어지고 있는데, 이러한 공정을 줄여주거나 추가적인 물성 확보를 위한 기술 개발이 요구되고 있다. Nickel plated steel sheets are manufactured by plating nickel on cold rolled steel sheets, and these nickel plated steel sheets are used for secondary batteries. In the case of the Ni plating material, many technical treatments have been made to further improve physical properties such as chemical resistance, such as forming Fe and Ni alloy layers, and it is required to develop a technology for reducing these processes or securing additional physical properties.

본 발명은 니켈 도금층 형성 전에 니켈을 포함하는 금속코팅층을 형성하는 방법을 통해 내식성 및 내화학성이 증대된 니켈 도금강판을 제공한다.The present invention provides a nickel plated steel sheet having improved corrosion resistance and chemical resistance through a method of forming a metal coating layer containing nickel before forming the nickel plated layer.

개시된 실시예에 따른 니켈 도금강판의 제조방법은 냉연강판에 금속 코팅층을 형성하는 단계; 및 상기 금속 코팅층에 니켈 도금층을 형성하는 단계;를 포함한다.A method of manufacturing a nickel plated steel sheet according to the disclosed embodiment includes forming a metal coating layer on a cold rolled steel sheet; And forming a nickel plating layer on the metal coating layer.

또한, 상기 냉연강판에 금속 코팅층을 형성하는 단계는, 상기 냉연 강판에 니켈 코팅층을 형성하는 것;을 포함할 수 있다.In addition, forming a metal coating layer on the cold rolled steel sheet may include forming a nickel coating layer on the cold rolled steel sheet.

또한, 상기 냉연강판에 금속코팅층을 형성하는 단계는, 상기 냉연강판에 0.1~10%의 니켈을 포함하는 니켈 코팅층을 형성하는 것;을 포함할 수 있다.In addition, the step of forming a metal coating layer on the cold rolled steel sheet may include forming a nickel coating layer containing 0.1 to 10% nickel on the cold rolled steel sheet.

또한, 상기 냉연강판에 금속코팅층을 형성하는 단계는, 상기 냉연강판에 5%의 니켈을 포함하는 니켈 코팅층을 형성하는 것;을 포함할 수 있다.In addition, forming the metal coating layer on the cold rolled steel sheet may include forming a nickel coating layer containing 5% nickel on the cold rolled steel sheet.

또한, 상기 냉연강판에 금속코팅층을 형성하는 단계는, 상기 냉연강판에 니켈 및 주석 중 적어도 하나를 포함하는 금속 코팅층을 형성하는 것;을 포함할 수 있다.In addition, forming a metal coating layer on the cold rolled steel sheet may include forming a metal coating layer including at least one of nickel and tin on the cold rolled steel sheet.

개시된 실시예에 따른 니켈 도금강판은 강판; 상기 강판 상에 마련된 금속 코팅층; 및 상기 금속 코팅층 상에 마련된 니켈 도금층;을 포함한다.Nickel plated steel sheet according to the disclosed embodiment is a steel sheet; A metal coating layer provided on the steel sheet; And a nickel plating layer provided on the metal coating layer.

또한, 상기 금속 코팅층은, 0.1~10%의 니켈을 포함할 수 있다.In addition, the metal coating layer may include 0.1 to 10% of nickel.

또한, 상기 금속 코팅층은, 5%의 니켈을 포함할 수 있다.Further, the metal coating layer may include 5% nickel.

또한, 상기 금속 코팅층은, 니켈 및 주석 중 적어도 하나를 포함할 수 있다.Further, the metal coating layer may include at least one of nickel and tin.

본 발명에 따르면, 냉연강판 위에 표면처리를 함으로써, 부식을 막고 내식성을 향상시킬 뿐 아니라 이후에 니켈 도금을 하게 될 때 도금될 소재표면에서의 도금 밀착성 및 내화학특성 등이 향상될 수 있다.According to the present invention, surface treatment on the cold rolled steel sheet prevents corrosion and improves corrosion resistance, as well as plating adhesion and chemical resistance on the surface of the material to be plated when nickel plating is performed later.

도 1은 일 실시예에 따른 금속코팅층이 형성된 냉연강판을 도시한다.
도 2는 도 1의 금속코팅층 상에 니켈 도금층이 형성된 니켈 도금강판을 도시한다.1 shows a cold rolled steel sheet on which a metal coating layer is formed according to an embodiment.
FIG. 2 shows a nickel plated steel sheet in which a nickel plating layer is formed on the metal coating layer of FIG. 1.

이하에서는 본 발명의 실시예를 상세히 설명한다. 이하의 실시예는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 본 발명의 사상을 충분히 전달하기 위해 제시하는 것이다. 본 발명은 여기서 제시한 실시예만으로 한정되지 않고 다른 형태로 구체화될 수도 있다. 또한 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. 단수의 표현은 문맥상 명백하게 예외가 있지 않는 한, 복수의 표현을 포함한다.Hereinafter, embodiments of the present invention will be described in detail. The following examples are presented to sufficiently convey the spirit of the present invention to those of ordinary skill in the art. The present invention is not limited to only the examples presented herein, but may be embodied in other forms. Also, when a part “includes” a certain component, this means that other components may be further included, rather than excluding other components, unless otherwise specified. Singular expressions include plural expressions, unless the context clearly has an exception.

일반적으로 니켈도금강판의 경우는 도금의 대상이 일반냉연강판으로 별도의 특수 표면처리가 되지 않은 소재였으나, 본 발명의 일 실시예에 따르면, 니켈 도금 전에 니켈을 포함하는 금속코팅층을 냉연강판 표면에 형성하여 도금 밀착성 및 내화학성을 개선시킬 수 있다.In general, in the case of a nickel plated steel sheet, the object of plating is a general cold rolled steel sheet, which is not a special surface treatment, but according to an embodiment of the present invention, a metal coating layer containing nickel is applied to the surface of the cold rolled steel sheet before nickel plating. It can be formed to improve plating adhesion and chemical resistance.

이하 일 실시예에 따른 니켈 도금강판의 제조방법에 대해 구체적으로 설명한다.Hereinafter, a method of manufacturing a nickel plated steel sheet according to an embodiment will be described in detail.

도 1은 일 실시예에 따른 금속코팅층이 형성된 냉연강판을 도시하고, 도 2는 도 1의 금속코팅층 상에 니켈 도금층이 형성된 니켈 도금강판을 도시한다.1 shows a cold rolled steel sheet on which a metal coating layer is formed according to an embodiment, and FIG. 2 shows a nickel plated steel sheet on which a nickel plating layer is formed on the metal coating layer of FIG. 1.

본 발명의 일 실시예에 따른 니켈 도금강판의 제조방법은, 도 1에 도시된 것처럼, 냉연강판의 표면에 니켈을 포함하는 금속코팅층을 형성하고, 도 2에 도시된 것처럼, 냉연강판의 표면에 형성된 금속코팅층 상에 니켈 도금층을 형성하는 것을 포함한다.Method of manufacturing a nickel plated steel sheet according to an embodiment of the present invention, as shown in Figure 1, to form a metal coating layer containing nickel on the surface of the cold rolled steel sheet, as shown in Figure 2, on the surface of the cold rolled steel sheet And forming a nickel plating layer on the formed metal coating layer.

일 실시예에 따른 냉연강판의 조성이나 용도에 제한은 없다. 일 실시예에 따른 냉연강판은 열연강판을 산세하여 표면의 스케일을 제거한 후 냉간압연하고, 계속해서 전해 세정 후 소둔(annealing) 및 조질 압연(skin pass rolling)한 것, 또는 상기 냉간 압연 및 전해 세정 후 소둔하지 않고 조질 압연을 실시한 것을 포함할 수 있으나, 이에 한정되는 것은 아니다.There is no limit to the composition or use of the cold rolled steel sheet according to one embodiment. The cold rolled steel sheet according to an embodiment is pickled on a hot rolled steel sheet to remove the scale of the surface and then cold rolled, followed by annealing and skin pass rolling after electrolytic cleaning, or the cold rolling and electrolytic cleaning After the annealing may be performed without temper rolling, but is not limited thereto.

냉연강판의 표면에 형성되는 금속 코팅층은 니켈 등 금속물질을 Flash법 이나 기타 공지된 다양한 표면처리방법을 통해 형성될 수 있다.The metal coating layer formed on the surface of the cold rolled steel sheet may be formed of a metal material such as nickel through a flash method or other known surface treatment methods.

전술한 것처럼, 냉연강판의 표면에 코팅되는 금속 코팅층은 니켈로 코팅될 수 있고, 이때 니켈은 0.1%~10%의 농도로 코팅될 수 있다. 바람직하게는 5% 농도의 니켈로 냉연강판이 코팅될 때, 보다 우수한 내식성 및 내화학성을 나타내었다. 또한, 금속코팅층은 니켈 외에 주석을 포함할 수도 있다.As described above, the metal coating layer coated on the surface of the cold rolled steel sheet may be coated with nickel, wherein nickel may be coated at a concentration of 0.1% to 10%. Preferably, when the cold rolled steel sheet was coated with nickel at a concentration of 5%, it exhibited better corrosion resistance and chemical resistance. Further, the metal coating layer may contain tin in addition to nickel.

냉연강판에 니켈 코팅층이 형성되면, 도 2에 도시된 것처럼, 니켈 코팅층 상에 니켈 도금층을 형성한다. 도금층을 형성할 니켈과 동일한 니켈을 포함하는 금속 코팅층 상에 니켈 도금층이 형성되면, 니켈 도금층의 도금 밀착성이 향상되고, 내식성 및 내화학성 또한 향상될 수 있다.When the nickel coating layer is formed on the cold rolled steel sheet, as illustrated in FIG. 2, a nickel plating layer is formed on the nickel coating layer. When the nickel plating layer is formed on the metal coating layer containing nickel identical to the nickel to form the plating layer, the plating adhesion of the nickel plating layer is improved, and corrosion resistance and chemical resistance can also be improved.

니켈 도금층을 형성하는 방법은 공지된 다양한 방법이 사용될 수 있고, 특정 방법으로 한정되지 않는다.As a method of forming the nickel plating layer, various known methods can be used and are not limited to a specific method.

전술한 니켈 도금강판 제조방법에 따라 제조된 니켈 도금강판은 도금 대상체인 냉연강판과, 냉연강판 상에 마련된 니켈을 포함하는 금속 코팅층과, 금속 코팅층 상에 마련된 니켈 도금층을 포함한다.The nickel-plated steel sheet manufactured according to the above-described method for manufacturing a nickel-plated steel sheet includes a cold-rolled steel sheet as a plating object, a metal coating layer containing nickel provided on the cold-rolled steel sheet, and a nickel plating layer provided on the metal coating layer.

전술한 것처럼, 금속 코팅층은 니켈로 형성될 수 있고, 이때 니켈 농도는 0.1~10%이고, 바람직하게는 5%의 농도를 가질 수 있다. As described above, the metal coating layer may be formed of nickel, wherein the nickel concentration is 0.1 to 10%, and preferably may have a concentration of 5%.

금속 코팅층은 니켈 외에 주석을 더 포함할 수도 있다.The metal coating layer may further include tin in addition to nickel.

본 발명의 일 실시예에 따른 니켈 도금강판은 전술한 것처럼, 니켈 도금 전에 니켈을 포함하는 금속코팅층을 냉연강판 표면에 형성하여 도금 밀착성 및 내화학성을 개선시킬 수 있다.As described above, the nickel plated steel sheet according to an embodiment of the present invention may improve the plating adhesion and chemical resistance by forming a metal coating layer containing nickel on the surface of the cold rolled steel sheet before nickel plating.

상술한 바에 있어서, 본 발명의 예시적인 실시예들을 설명하였지만, 본 발명은 이에 한정되지 않으며 해당 기술 분야에서 통상의 지식을 가진 자라면 다음에 기재하는 특허청구범위의 개념과 범위를 벗어나지 않는 범위 내에서 다양한 변경 및 변형이 가능함을 이해할 수 있을 것이다.As described above, although exemplary embodiments of the present invention have been described, the present invention is not limited thereto, and a person having ordinary skill in the art does not depart from the concept and scope of the following claims. It will be understood that various modifications and variations are possible.

Claims (9)

냉연강판에 금속 코팅층을 형성하는 단계;
상기 금속 코팅층에 니켈 도금층을 형성하는 단계;를 포함하는 니켈 도금강판의 제조방법.Forming a metal coating layer on the cold rolled steel sheet;
Forming a nickel plating layer on the metal coating layer. 제1항에 있어서,
상기 냉연강판에 금속 코팅층을 형성하는 단계는,
상기 냉연 강판에 니켈 코팅층을 형성하는 것;을 포함하는 니켈 도금강판의 제조방법.According to claim 1,
Forming a metal coating layer on the cold rolled steel sheet,
Forming a nickel coating layer on the cold rolled steel sheet. 제1항에 있어서,
상기 냉연강판에 금속코팅층을 형성하는 단계는,
상기 냉연강판에 0.1~10% 농도의 니켈을 포함하는 니켈 코팅층을 형성하는 것;을 포함하는 니켈 도금강판의 제조방법.According to claim 1,
The step of forming a metal coating layer on the cold rolled steel sheet,
A method of manufacturing a nickel plated steel sheet comprising; forming a nickel coating layer containing nickel at a concentration of 0.1 to 10% on the cold rolled steel sheet. 제1항에 있어서,
상기 냉연강판에 금속코팅층을 형성하는 단계는,
상기 냉연강판에 5% 농도의 니켈을 포함하는 니켈 코팅층을 형성하는 것;을 포함하는 니켈 도금강판의 제조방법.According to claim 1,
The step of forming a metal coating layer on the cold rolled steel sheet,
Forming a nickel coating layer containing 5% concentration of nickel on the cold rolled steel sheet. 제1항에 있어서,
상기 냉연강판에 금속코팅층을 형성하는 단계는,
상기 냉연강판에 니켈 및 주석을 포함하는 금속 코팅층을 형성하는 것;을 포함하는 니켈 도금강판의 제조방법.According to claim 1,
The step of forming a metal coating layer on the cold rolled steel sheet,
Forming a metal coating layer containing nickel and tin on the cold rolled steel sheet. 강판;
상기 강판 상에 마련된 금속 코팅층; 및
상기 금속 코팅층 상에 마련된 니켈 도금층;을 포함하는 니켈 도금강판.Grater;
A metal coating layer provided on the steel sheet; And
A nickel plated steel sheet comprising; a nickel plating layer provided on the metal coating layer. 제6에 있어서,
상기 금속 코팅층은,
0.1~10% 농도의 니켈을 포함하는 니켈 도금강판.The method of claim 6,
The metal coating layer,
Nickel plated steel sheet containing nickel at a concentration of 0.1 to 10%. 제6에 있어서,
상기 금속 코팅층은,
5% 농도의 니켈을 포함하는 니켈 도금강판 The method of claim 6,
The metal coating layer,
Nickel plated steel sheet containing 5% concentration of nickel 제6항에 있어서,
상기 금속 코팅층은,
니켈 및 주석을 포함하는 니켈 도금강판.The method of claim 6,
The metal coating layer,
Nickel plated steel sheet containing nickel and tin.
KR1020180165607A 2018-12-19 2018-12-19 High strength steel wire and the method for manufacturing the same KR20200076480A (en)

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