KR900000759B1 - 아연도금 강판의 크로메이트 처리용액 - Google Patents
아연도금 강판의 크로메이트 처리용액 Download PDFInfo
- Publication number
- KR900000759B1 KR900000759B1 KR1019870015124A KR870015124A KR900000759B1 KR 900000759 B1 KR900000759 B1 KR 900000759B1 KR 1019870015124 A KR1019870015124 A KR 1019870015124A KR 870015124 A KR870015124 A KR 870015124A KR 900000759 B1 KR900000759 B1 KR 900000759B1
- Authority
- KR
- South Korea
- Prior art keywords
- solution
- chromate
- steel sheet
- chromate treatment
- galvanized steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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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
- 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
- C23C22/06—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 acidic solutions with pH less than 6
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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)
Abstract
Description
Claims (1)
- 통상의 크로메이트 용액의 크롬(Cr) 농도를 갖는 용액에 Cl-, NO- 3, F-를 각각 1-1.5 : 1-1.5 : 2-2.5의 비율이 되도록 7-12g/L 첨가하고, 황산이온(SO2- 4)을 0.01-0.5g/L 첨가하여 최종 pH가 0.6-1.0이 되도록 한 것을 특징으로 하는 아연도금 강판의 크로메이트 처리용액.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019870015124A KR900000759B1 (ko) | 1987-12-28 | 1987-12-28 | 아연도금 강판의 크로메이트 처리용액 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019870015124A KR900000759B1 (ko) | 1987-12-28 | 1987-12-28 | 아연도금 강판의 크로메이트 처리용액 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890010271A KR890010271A (ko) | 1989-08-07 |
KR900000759B1 true KR900000759B1 (ko) | 1990-02-15 |
Family
ID=19267485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019870015124A Expired KR900000759B1 (ko) | 1987-12-28 | 1987-12-28 | 아연도금 강판의 크로메이트 처리용액 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR900000759B1 (ko) |
-
1987
- 1987-12-28 KR KR1019870015124A patent/KR900000759B1/ko not_active Expired
Also Published As
Publication number | Publication date |
---|---|
KR890010271A (ko) | 1989-08-07 |
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