KR960023238A - Manufacturing method of chromium-zinc-nickel / zinc-nickel alloy two-layer plated steel sheet having high corrosion resistance - Google Patents

Manufacturing method of chromium-zinc-nickel / zinc-nickel alloy two-layer plated steel sheet having high corrosion resistance Download PDF

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Publication number
KR960023238A
KR960023238A KR1019940035210A KR19940035210A KR960023238A KR 960023238 A KR960023238 A KR 960023238A KR 1019940035210 A KR1019940035210 A KR 1019940035210A KR 19940035210 A KR19940035210 A KR 19940035210A KR 960023238 A KR960023238 A KR 960023238A
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KR
South Korea
Prior art keywords
zinc
chromium
nickel
steel sheet
nickel alloy
Prior art date
Application number
KR1019940035210A
Other languages
Korean (ko)
Other versions
KR0146880B1 (en
Inventor
박성국
전희동
Original Assignee
김만제
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
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Application filed by 김만제, 포항종합제철 주식회사, 신창식, 재단법인 산업과학기술연구소 filed Critical 김만제
Priority to KR1019940035210A priority Critical patent/KR0146880B1/en
Publication of KR960023238A publication Critical patent/KR960023238A/en
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Publication of KR0146880B1 publication Critical patent/KR0146880B1/en

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    • 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
    • C25D5/48—After-treatment of electroplated surfaces
    • C25D5/50—After-treatment of electroplated surfaces by heat-treatment
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting

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

Abstract

본 발명은 종래의 전기도금방식으로는 고크롬-아연-니켈 합금전기도금강판을 제조하기 곤란하고, 특히 저크롬 영역에서는 합금층의 획득이 어려운 종래의 문제점을 해결하고자 제안된 것으로서, 기존 제품인 아연-니켈 도금강판 위에 크롬 전기도금을 한 후, 합금화 열처리를 하여 도금층에 금속간 상호확산을 유도함으로서, 상층에 박막의 크롬-아연-니켈 합금층을 형성시켜, 고내식성을 갖는 크롬-아연-니켈/아연-니켈 합금이층도금강판을 제조하는 방법을 제공하고자 하는데, 그 목적이 있다.The present invention is difficult to manufacture a high chromium-zinc-nickel alloy electroplating steel sheet by the conventional electroplating method, and in particular, it is proposed to solve the conventional problem of difficult to obtain the alloy layer in the low chromium region, zinc is an existing product After chromium electroplating on nickel plated steel sheet, alloying heat treatment induces mutual diffusion between metals in the plating layer, thereby forming a thin chromium-zinc-nickel alloy layer on the upper layer, thereby having high corrosion resistance chromium-zinc-nickel. To provide a method for producing a zinc-nickel alloy layered steel sheet, the object is.

본 발명은 크롬-아연-니켈/아연-니켈 합금이층도금강판의 제조방법에 있어서, 아연-니켈 합금도금강판 상층에 5g/㎡ 이하의 크롬을 전기도금한 후, 500∼700℃의 온도에서 200∼400초간 열처리한 다음, 수냉처리하는 고내식성을 갖는 크롬-아연-니켈/아연-니켈 합금이층도금강판의 제조방법에 관한 것을 그 요지로 한다.The present invention is a method for producing a chromium-zinc-nickel / zinc-nickel alloy two-layer plated steel sheet, after electroplating chromium of 5g / ㎡ or less on the zinc-nickel alloy plated steel sheet, at a temperature of 500 ~ 700 ℃ The present invention relates to a method for producing a chromium-zinc-nickel / zinc-nickel alloy double plated steel sheet having high corrosion resistance after heat treatment for 200 to 400 seconds, followed by water cooling.

Description

고내식성을 갖는 크롬-아연-니켈/아연-니켈 합금이층도금강판의 제조방법Manufacturing method of chromium-zinc-nickel / zinc-nickel alloy two-layer plated steel sheet having high corrosion resistance

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명재의 도금층 구조를 나타내는 모식도로서, (가)는 열처리전, (나)는 열처리후를 나타냄.1 is a schematic diagram showing the plated layer structure of the present invention, where (a) is before heat treatment and (b) is after heat treatment.

Claims (1)

크롬-아연-니켈/아연-니켈 합금이층도금강판의 제조방법에 있어서, 아연-니켈 합금도금강판 상층에 5g/㎡ 이하의 크롬을 전기도금한 후, 500∼700℃의 온도범위에서 200∼400초간 열처리한 다음, 수냉처리하는 것을 특징으로 하는 고내식성을 갖는 크롬-아연-니켈/아연-니켈 합금이층도금강판의 제조방법.In the method for producing a chromium-zinc-nickel / zinc-nickel alloy two-layer plated steel sheet, after electroplating chromium of 5 g / ㎡ or less on the zinc-nickel alloy plated steel sheet, 200 ~ 200 ~ in the temperature range of 500 ~ 700 ℃ A method of manufacturing a chromium-zinc-nickel / zinc-nickel alloy two-layer plated steel sheet having high corrosion resistance after heat treatment for 400 seconds and then water cooling. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940035210A 1994-12-20 1994-12-20 Method for manufacturing cr-zn-ni/zn-ni alloy coated steel sheet KR0146880B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940035210A KR0146880B1 (en) 1994-12-20 1994-12-20 Method for manufacturing cr-zn-ni/zn-ni alloy coated steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940035210A KR0146880B1 (en) 1994-12-20 1994-12-20 Method for manufacturing cr-zn-ni/zn-ni alloy coated steel sheet

Publications (2)

Publication Number Publication Date
KR960023238A true KR960023238A (en) 1996-07-18
KR0146880B1 KR0146880B1 (en) 1998-11-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940035210A KR0146880B1 (en) 1994-12-20 1994-12-20 Method for manufacturing cr-zn-ni/zn-ni alloy coated steel sheet

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111172569A (en) * 2020-03-10 2020-05-19 南京长江电子信息产业集团有限公司 Anti-corrosion treatment method for piston rod of radar hydraulic cylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111172569A (en) * 2020-03-10 2020-05-19 南京长江电子信息产业集团有限公司 Anti-corrosion treatment method for piston rod of radar hydraulic cylinder

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Publication number Publication date
KR0146880B1 (en) 1998-11-02

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