KR102403600B1 - 산화막 제거와 피막 형성 동시 처리제 및 그가 적용된 연속 도장처리방법 - Google Patents
산화막 제거와 피막 형성 동시 처리제 및 그가 적용된 연속 도장처리방법 Download PDFInfo
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- KR102403600B1 KR102403600B1 KR1020220030828A KR20220030828A KR102403600B1 KR 102403600 B1 KR102403600 B1 KR 102403600B1 KR 1020220030828 A KR1020220030828 A KR 1020220030828A KR 20220030828 A KR20220030828 A KR 20220030828A KR 102403600 B1 KR102403600 B1 KR 102403600B1
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
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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
- 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
-
- 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
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Abstract
Description
도 2a 및 도 2d는 본 발명의 일실시예에 따른 산화막 제거와 피막 형성 동시 처리제가 적용된 연속 도장공정에 대한 예시도.
도 3은 본 발명의 일실시예에 따른 산화막 제거와 피막 형성 동시 처리제가 적용된 피막 형성 상태를 종래예와 비교한 사진도.
도 4a 및 도 4b는 본 발명의 일실시예에 따른 산화막 제거와 피막 형성 동시 처리제가 적용되어 형성된 피막의 부착성 및 내식성을 종래예와 비교한 사진도.
| 구분 구성성분(wt%) |
실시예1 | 실시예2 | 실시예3 | 실시예4 | 실시예5 | 실시예6 | |
| 포스폰산 금속 킬레이트제(유효함량) | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | |
| 금속이온봉쇄제 | - | 0.2 | 0.2 | 0.5 | 0.5 | - | |
| 촉진제 | - | - | 0.03 | 0.03 | 0.06 | 0.06 | |
| pH조정제(90% KOH) | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | |
| 피막원료 | 지르코늄 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| 실란 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | |
| 산화제 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | |
| 물 | 92.7 | 92.5 | 92.47 | 92.17 | 92.14 | 92.64 | |
| total | 100 | 100 | 100 | 100 | 100 | 100 | |
| 전도도 측정값(㎳/㎝) | 19.5±1.0 | ← | ← | ← | ← | ← | |
| 칼슘억제력 측정값(ml) | 11.5±1.0 | ← | ← | ← | ← | ← | |
| H(40% KOH로 추가 조정) | 4.5±0.3 | ← | ← | ← | ← | ← | |
| 구분 | 실시예1 | 실시예2 | 실시예3 | 실시예4 | 실시예5 | 실시예6 |
| 실란 지르코늄 피막 중량 (㎎/㎡) |
50 | 53 | 55 | 53 | 57 | 55 |
| GA방청강판 아연용출량 (g/㎡) (조건:50℃,90sec.,Dip.) |
0.75 |
0.83 |
0.97 |
1.03 |
1.01 |
0.89 |
| 내염수분무 TEST (전착 도장 후 평판 CR 강판 800Hr) |
양호 |
양호 |
양호 |
양호 |
양호 |
양호 |
| 항목 | 실시예 3, pH 조정값 | |||||
| 2.0 | 3.0 | 4.0 | 5.0 | 6.0 | 7.0 | |
| 무기산 산화막 제거제 사용 (50℃, 90sec.,Dip. 처리 후 자연건조) |
녹발생 | 녹발생 | 녹발생 | 녹발생 | 녹발생 | 미세 녹발생 |
| 동시 처리제 사용 (50℃, 90sec.,Dip. 처리 후 자연건조) |
양호 | 양호 | 양호 | 양호 | 양호 | 양호 |
3: 포스폰산 금속 킬레이트제 4a: 피막원료
4: 실란 지르코늄 피막 5: 도장층
Claims (5)
- 탕세단계, 탈지단계, 전수세단계, 피막형성단계, 후수세단계, 순수세단계 및 도장단계를 포함하는 연속 도장방법에 있어서,
상기 피막형성단계에서, 도장대상체의 표면에 형성된 산화막을 제거하기 위한 20~40 중량%의 포스폰산 금속 킬레이트제와, 상기 산화막이 분리된 상기 도장대상체의 표면에 실란 지르코늄 피막이 형성되도록 피막원료로서 0.1~10 중량%의 실란 화합물 및 1~20 중량%의 지르코늄 화합물과, 보조착화제로서 2~10 중량%의 금속이온봉쇄제와, pH 조정제로서 10~20 중량%의 알칼리성 원료와, 반응속도 향상제로서 0.1~1 중량%의 촉진제와, 나머지 중량%의 물을 포함하여 조성되는 산화막 제거와 피막 형성 동시 처리제가 적용되되,
상기 산화막 제거와 피막 형성 동시 처리제는 용매에 희석시 pH가 2.0~7.0 범위이고, 전도도 측정값이 5~30ms/cm 범위이며, 칼슘 억제제 측정값이 5~30ml가 되도록 조성된 것임을 특징으로 하는 산화막 제거와 피막 형성 동시 처리제가 적용된 연속 도장처리방법. - 제 1 항에 있어서,
상기 도장대상체의 표면 조정을 위하여 상기 산화막 제거와 피막 형성 동시 처리제의 전체 중량에 대하여 0.1~5 중량%의 산화제가 더 포함되되,
상기 산화제는 셀레늄 화합물, 텅스텐 화합물 및 이들의 혼합물로 이루어진 군 중에서 하나로 선택됨을 특징으로 하는 산화막 제거와 피막 형성 동시 처리제가 적용된 연속 도장처리방법. - 제 1 항에 있어서,
상기 실란 지르코늄 피막의 형성능이 개선되도록, 상기 산화막 제거와 피막 형성 동시 처리제를 적용시 20~60℃ 온도범위에서 초음파를 병행시켜 30~500초 동안 처리하는 것을 특징으로 하는 산화막 제거와 피막 형성 동시 처리제가 적용된 연속 도장처리방법. - 도장대상체의 표면에 형성된 산화막을 분리하기 위한 20~40 중량%의 포스폰산 금속 킬레이트제;
상기 산화막이 분리된 상기 도장대상체의 표면에 피막원료로서 0.1~10 중량%의 실란 화합물 및 1~20 중량%의 지르코늄 화합물;
보조착화제로서 2~10 중량%의 금속이온봉쇄제;
pH조정제로서 10~20 중량%의 알칼리성 원료;
반응속도 향상제로서 0.1~1 중량%의 촉진제; 및
나머지 중량%의 물을 포함하되,
용매에 희석시 pH는 2.0~7.0이고, 전도도 측정값이 5~30ms/cm 범위이며, 칼슘 억제력 측정값이 5~30ml가 되도록 조성됨을 특징으로 하는 산화막 제거와 피막 형성 동시 처리제. - 제 4 항이 있어서,
상기 도장대상체의 표면 조정을 위하여 상기 산화막 제거와 피막 형성 동시 처리제의 전체 중량에 대하여 0.1~5 중량%의 산화제가 더 포함되되,
상기 산화제는 셀레늄 화합물, 텅스텐 화합물 및 이들의 혼합물로 이루어진 군 중에서 하나로 선택됨을 특징으로 하는 산화막 제거와 피막 형성 동시 처리제.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100239915B1 (ko) | 1997-06-10 | 2000-01-15 | 최 성복 | 스테인레스강의 산화물 제거제 및 이를 이용한 산화물 제거 방법 |
| KR101355863B1 (ko) * | 2013-10-17 | 2014-01-27 | 삼양화학산업 주식회사 | 중성세정제 및 그가 적용된 연속 도장방법 |
| KR20140103778A (ko) * | 2013-02-19 | 2014-08-27 | 주식회사 노루코일코팅 | 마그네슘 및 마그네슘 합금 소재의 표면 처리제 및 이를 이용한 표면처리 방법 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100239915B1 (ko) | 1997-06-10 | 2000-01-15 | 최 성복 | 스테인레스강의 산화물 제거제 및 이를 이용한 산화물 제거 방법 |
| KR20140103778A (ko) * | 2013-02-19 | 2014-08-27 | 주식회사 노루코일코팅 | 마그네슘 및 마그네슘 합금 소재의 표면 처리제 및 이를 이용한 표면처리 방법 |
| KR101355863B1 (ko) * | 2013-10-17 | 2014-01-27 | 삼양화학산업 주식회사 | 중성세정제 및 그가 적용된 연속 도장방법 |
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