KR930006181A - 알루미늄을 보호하기 위한 크롬-배제 방법 및 조성물 - Google Patents

알루미늄을 보호하기 위한 크롬-배제 방법 및 조성물 Download PDF

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Publication number
KR930006181A
KR930006181A KR1019920017512A KR920017512A KR930006181A KR 930006181 A KR930006181 A KR 930006181A KR 1019920017512 A KR1019920017512 A KR 1019920017512A KR 920017512 A KR920017512 A KR 920017512A KR 930006181 A KR930006181 A KR 930006181A
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nitrate
cerium
aluminum
exposing
aqueous solution
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KR1019920017512A
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KR950001218B1 (ko
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킨들러 앤드류
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원다 케이. 덴스-로우
휴즈 에어크라프트 캄파니
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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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/82—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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/68—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
    • 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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/82—After-treatment
    • C23C22/83—Chemical after-treatment

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Ceramic Products (AREA)
  • Anti-Oxidant Or Stabilizer Compositions (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Basic Packing Technique (AREA)
  • Glass Compositions (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Abstract

본 발명은 불순물들을 알루미늄 또는 알루미늄 합금의 표면으로부터 제거하고; 상기 표면을 50 내지 100℃에서 물에 노출시켜 상기 표면상에 다공성 베마이트 코팅을 형성시키고; 상기 베마이트-코팅된 표면을 70 내지 100℃의 온도에서 새륨염 및 금속 질산염을 포함하는 수용액에 노출시킴을 포함하는, 상기 표면상에 보호 코팅을 제공하는 개선된 방법을 제공한다. 세륨의 산화물 및 수산화물이 상기 베마이트의 기공내에 형성되어 보호 코팅을 제공하며, 상기는 내식성 및 개선된 도료 접착성을 제공한다.

Description

알루미늄을 보호하기 위한 크롬--배제방법 및 조성물
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (10)

  1. (a) 알루미늄 또는 알루미늄 합금의 표면으로부터 불순물을 제거하여 세척된 표면을 수득하고; (b) 상기 세척된 표면을 50 내지 100℃ 범위의 온도에서 탈이온수에 노출시켜 상기 표면상에 다공성 베마이트 코팅을 형성 시키고; (c) 상기 베마이트 코팅을 갖는 표면을 세륨염 및 금속 질산염을 포함하는 수용액에 70 내지 100℃범위의 온도에서 상기 다공성 베마이트 코팅의 기공내에 상기 세륨의 산화물 및 수산화물이 형성되기에 충분한 시간동안 노출시키므로써 보호코팅을 제공함을 포함하는, 알루미늄 또는 알루미늄 합금의 표면에 상기 보호 코팅을 제공하는 방법.
  2. 제1항에 있어서, 상기 세륨염이 염화 세륨, 질산 세륨 및 황산 세륨으로 이루어진 그룹으로부터 선택되는 방법.
  3. 제1항에 있어서, 상기 세륨염이 염화세륨을 포함하고 상기 세륨 염의 농도가 약 0. 0l중량% 내지 약 1중량%인 방법.
  4. 제1항에 있어서. 상기 세륨 염의 농도가 약 0.1중량%인 방법.
  5. 제1항에 있어서, 상기 금속질산염이 질산 리튬, 질산알루미늄, 질산암모늄, 질산나트륨 및 이들의 혼합물로 이루어진 그룹중에서 선택되는 방법.
  6. 제5항에 있어서, 상기 수용액이 약 0.1 내지 약5중량%의 질산 리튬 및 약 0.1 내지 약5중량%의 질산 알루미늄을 포함하는 방법.
  7. 제1항에 있어서, 상기 불순물 제거 단계가 상기 표면을 알칼리 세척 조성물 또는 탈산제에 노출시킴을 포함하는 방법.
  8. 제1항에 있어서, 상기 수용액의 pH가 약 3.5 내지 약 4의 범위인 방법.
  9. 제1항에 있어서, (c)단계 후에, 상기 보호 코팅을 갖는 상기 표면을 최종 밀봉제 층이 형성되기에 충분한 시간동안 약 90 내지 95℃의 온도에서 금속 규산염 용액에 노출시킴을 또한 포함하는 방법.
  10. 약 0.01 내지 약 1중량%의 세륨염 및 약 0.2 내지 약 10중량%의 금속 질산염을 포함하는 수용액을 포함하는, 제1항의 방법에 따라 보호 코팅을 알루미늄 또는 알루미늄 합금의 표면에 제공하기 위한 조성물.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920017512A 1991-09-27 1992-09-25 알루미늄을 보호하기 위한 크롬-배제 방법 및 조성물 KR950001218B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/766,319 US5192374A (en) 1991-09-27 1991-09-27 Chromium-free method and composition to protect aluminum
US766,319 1991-09-27

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KR930006181A true KR930006181A (ko) 1993-04-21
KR950001218B1 KR950001218B1 (ko) 1995-02-14

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Country Link
US (1) US5192374A (ko)
EP (1) EP0534120B1 (ko)
JP (1) JP2716328B2 (ko)
KR (1) KR950001218B1 (ko)
AT (1) ATE119949T1 (ko)
CA (1) CA2075118C (ko)
DE (1) DE69201707T2 (ko)
MX (1) MX9205471A (ko)

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Also Published As

Publication number Publication date
JP2716328B2 (ja) 1998-02-18
EP0534120A1 (en) 1993-03-31
KR950001218B1 (ko) 1995-02-14
DE69201707T2 (de) 1995-09-07
US5192374A (en) 1993-03-09
ATE119949T1 (de) 1995-04-15
MX9205471A (es) 1993-03-01
DE69201707D1 (de) 1995-04-20
CA2075118A1 (en) 1993-03-28
CA2075118C (en) 1997-03-04
JPH05195247A (ja) 1993-08-03
EP0534120B1 (en) 1995-03-15

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