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KR960031640A - 고내식성 Zn-Mg계 도금강판 및 그 제조방법 - Google Patents

고내식성 Zn-Mg계 도금강판 및 그 제조방법 Download PDF

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KR960031640A
KR960031640A KR1019960004969A KR19960004969A KR960031640A KR 960031640 A KR960031640 A KR 960031640A KR 1019960004969 A KR1019960004969 A KR 1019960004969A KR 19960004969 A KR19960004969 A KR 19960004969A KR 960031640 A KR960031640 A KR 960031640A
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steel sheet
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based plated
plated steel
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야스시 후쿠이
마사노리 마츠노
히로시 다나카
미노루 사이토
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고가 겐스케
닛신 세이코 가부시키가이샤
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Priority claimed from JP29473695A external-priority patent/JPH09111438A/ja
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    • 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
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    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
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    • 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
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    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
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    • 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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/56—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
    • C23C14/562—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks for coating elongated substrates
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/938—Vapor deposition or gas diffusion
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    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/12771—Transition metal-base component
    • Y10T428/12785—Group IIB metal-base component
    • Y10T428/12792—Zn-base component
    • Y10T428/12799—Next to Fe-base component [e.g., galvanized]

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Abstract

이 Zn-Mg계 도금강판은 Mg농도 0.5% 이하의 Zn-Mg 합금층, Mg농도 7% 이상의 Zn-Mg 합금층 및 Mg농도 0.5% 이하의 Zn-Mg 합금층의 순차적으로 적층된 3층구조, 혹은 Mg농도 0.5% 이하의 Zn-Mg 합금층, Mg농도 2~7%의 Zn-Mg 합금층, Mg농도 7% 이상의 Zn-Mg 합금층, Mg농도 2~7%의 Zn-Mg 합금층 및 Mg농도 0.5% 이하의 Zn-Mg 합금층이 순차적으로 적층된 5층구조의 Zn-Mg 합금도층을 갖는다.
소지강과 도금층의 계면에는 Zn-fe 합금층 또는 Zn-Fe-Mg 합금층이 형성되는 것이 좋다. 최상층의 부착량에 대한 제1층의 부착량 비율을 1.2 이상으로 고 Mg농도의 Zn-Mg합금층을 Zn2Mg상과 Mg가 고용된 Zn상의 혼합조직으로 조정하는 것이 바람직하다.
고 Mg농도의 Zn-Mg 합금층이 본래적으로 갖는 특성이 충분히 발휘되고, 도장후의 이차밀착성도 우수하므로 광범위한 분야에서 가혹한 부식분위기에 노출되는 구조재나 부품등으로서 사용된다.

Description

고내식성 Zn-Mg계 도금강판 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (17)

  1. Mg 농도 0.5중량% 이하의 Zn-Mg 합금층을 제1층, Mg농도 7중량% 이상의 Zn-Mg 합금층을 제2층, Mg농도 0.5중량% 이하의 Zn-Mg 합금층을 제3층으로 하여, 이들 각층이 순차적으로 적층된 3층구조의 도금층이 형성되어 있는 Zn-Mg계 도금강판.
  2. 제1항에 있어서, 상기 제3층의 부착량이 0.3g/m2이상인 것을 특징으로 하는 Zn-Mg계 도금강판.
  3. 제1항에 있어서, 상기 제3층의 부착량에 대한 제1층의 부착량 비율이 1.2 이상인 것을 특징으로 하는 Zn-Mg계 도금강판.
  4. 제1항에 있어서, 상기 제2층이 Zn2Mg와 Mg가 고용된 Zn과의 혼합조직을 갖는 것을 특징으로 하는 Zn-Mg계 도금강판.
  5. Mg 농도 0.5중량% 이하의 Zn-Mg 합금층을 제1층, Mg농도 2~7중량%의 Zn-Mg합금층을 제2층, Mg농도 7중량% 이상의 Zn-Mg 합금층을 제3층, Mg농도 2~7중량%의 Zn-Mg 합금층을 제4층, Mg농도 0.5중량%의 이하의 Zn-Mg 합금층을 제5층으로 하여, 이들 각층이 순차적으로 적층된 5층구조의 도금층이 형성되어 있는 Zn-Mg계 도금강판.
  6. 제5항에 있어서, 상기 제5층의 부착량이 0.3g/m2이상인 것을 특징으로 하는 Zn-Mg계 도금강판.
  7. 제5항에 있어서, 상기 제5층의 부착량에 대한 제1층의 부착량 비율이 1.2 이상인 것을 특징으로 하는 Zn-Mg계 도금강판.
  8. 제5항에 있어서, 상기 제3층이 Zn2Mg와 Mg가 고용된 Zn과의 혼합조직을 갖는 것을 특징으로 하는 Zn-Mg계 도금강판.
  9. 제5항에 있어서, 상기 제2층 및 제4층이 Zn11Mg2상 Mg가 고용된 Zn상에 의해 형성되어 있는 것을 특징으로 하는 Zn-Mg계 도금강판.
  10. 제1항 또는 제5항에 있어서, 소지강과의 계면에 층두께 0.5㎛ 이하의 Zn-fe 합금층 또는 Zn-Fe-Mg 합금층이 형성되어 있는 것을 특징으로하는 Zn-Mg계 도금강판.
  11. 단위면적당 Zn부착량을 Mg부착량의 1.5배 이상으로 사전 Zn용착을 강판표면에 실시하고, 이어서 Mg용착 및 Zn용착을 하는 Zn-Mg계 도금강판의 제조방법.
  12. 제11항에 있어서, 상기 강판이 용착시에 180℃ 이상의 온도로 유지되는 것을 특징으로 하는 Zn-Mg계 도금강판의 제조방법.
  13. 환원가열에 의해 표면을 활성화시킨 강판을 환원분위기대, 질소치환실, 질소분위기 덕트 및 진공실장치를 거쳐 진공용착실에 도입하고, 사전 Zn 용착, Mg 용착 및 Zn 용착을 순차적으로 행할때, 질소분위기 덕트의 O2농도(용량%)를 X, H2O농도(용량%)를 Y, 판통과 시간을 Z(초)로 할때, X×Z1.2 및 Y×Z35를 만족시키는 조건하에서 질소분위기 덕트로 판을 통과시키는 Zn-Mg계 도금강판의 제조방법.
  14. 제13항에 있어서, 상기 질소분위기 덕트에 H2를 첨가하는 것을 특징으로 하는 Zn-Mg계 도금강판의 제조방법.
  15. 제14항에 있어서, 상기 질소분위기 덕트에 0.05~4용량%의 H2를 첨가하여 X×Z3.8 및 Y×Z80을 만족시키는 조건하에서 질소분위기 덕트로 판을 통과시키는 것을 특징으로하는 Zn-Mg계 도금강판의 제조방법.
  16. 상기 강판표면에 Zn, Mg 및 Zn을 독립적으로 차례로 용착하고, 용착종료시점의 강판온도를 270~370℃로 제어하고, Mg와 Zn을 상호 확산시켜 3층 또는 5층구조의 도금층을 형성하도록 하는 Zn-Mg계 도금강판의 제조방법.
  17. 상기 강판표면에 Zn, Mg 및 Zn을 독립적으로 차례로 용착한 후, 150~240℃로 1시간 이상 가열하고, Mg와 Zn을 상호 확산시켜, 3층 또는 5층구조의 도금층을 형성하도록 하는 Zn-Mg계 도금강판의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960004969A 1995-02-28 1996-02-28 고내식성zn-mg계도금강판및그제조방법 KR100295174B1 (ko)

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Application Number Priority Date Filing Date Title
JP95-65096 1995-02-28
JP6509695A JPH08239754A (ja) 1995-02-28 1995-02-28 二次密着性及び耐食性に優れたＺｎ−Ｍｇ合金めっき鋼板
JP29473695A JPH09111438A (ja) 1995-10-18 1995-10-18 端面の耐食性に優れたＺｎ−Ｍｇ合金めっき鋼板及び製造方法
JP95-294736 1995-10-18

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US11208716B2 (en) 2016-12-26 2021-12-28 Posco Multi-layered zinc alloy plated steel having excellent spot weldability and corrosion resistance
US11414743B2 (en) 2017-12-26 2022-08-16 Posco Multilayered zinc alloy plated steel material having excellent spot weldability and corrosion resistance

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IT1291883B1 (it) * 1997-04-18 1999-01-21 Sviluppo Materiali Spa Procedimento per la produzione in continuo, tramite deposizione fisica da fase vapore, di nastri metallici rivestiti con elevata
US6607844B1 (en) * 1999-03-15 2003-08-19 Kobe Steel, Ltd. Zn-Mg electroplated metal sheet and fabrication process therefor
IL135550A0 (en) * 2000-04-09 2001-05-20 Acktar Ltd Method and apparatus for temperature controlled vapor deposition on a substrate
KR100392783B1 (ko) * 2001-04-11 2003-07-23 학교법인 포항공과대학교 유기금속 화학증착법에 의해 형성된 산화아연마그네슘박막 및 이의 제조방법
CN100368028C (zh) * 2005-12-22 2008-02-13 上海交通大学 生物体内可吸收的Mg-Zn两元镁合金材料
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