KR101900793B1 - 전기·전자, 자동차 부품용 동합금의 주석 도금 방법 및 이로부터 제조된 동합금의 주석 도금재 - Google Patents
전기·전자, 자동차 부품용 동합금의 주석 도금 방법 및 이로부터 제조된 동합금의 주석 도금재 Download PDFInfo
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Abstract
Description
도 2는 마찰계수 측정 장비의 개략도이다.
No. | 하지 | 주석 또는 주석합금 도금 (리플로우 처리 전) |
주석 또는 주석합금 도금 (표면처리 및 리플로우 처리 후) |
||||||
도금순서 | 총하지두께 (㎛) |
종류 | 두께 (㎛) |
Cu-Sn 화합물 (㎛) |
주석 (㎛) |
||||
구리 | 니켈 또는 니켈 합금 | 구리 | |||||||
발명예 | 1 | 없음 | 없음 | Cu | 0.3 | Sn | 0.4 | 0.32 | 0.08 |
2 | 없음 | Ni | Cu | 0.35 | Sn | 0.6 | 0.42 | 0.18 | |
3 | 없음 | 없음 | Cu | 0.3 | Sn-Ag | 0.8 | 0.53 | 0.27 | |
4 | 없음 | 없음 | Cu | 0.3 | Sn | 1.0 | 0.82 | 0.18 | |
5 | 없음 | 없음 | Cu | 0.3 | Sn | 1.2 | 0.85 | 0.35 | |
6 | 없음 | Ni-Co | Cu | 0.4 | Sn-Bi | 0.4 | 0.35 | 0.05 | |
7 | 없음 | Ni | Cu | 0.3 | Sn | 0.6 | 0.42 | 0.18 | |
8 | 없음 | Ni | Cu | 0.3 | Sn | 0.8 | 0.65 | 0.15 | |
9 | 없음 | Ni-P | Cu | 0.4 | Sn | 1.2 | 0.82 | 0.38 | |
10 | 없음 | Ni | Cu | 0.3 | Sn | 1.0 | 0.83 | 0.17 | |
11 | Cu | Ni | 없음 | 0.5 | Sn-Bi | 0.8 | 0.75 | 0.05 | |
12 | Cu | Ni-P | 없음 | 0.4 | Sn | 1.0 | 0.82 | 0.18 | |
13 | Cu | Ni | 없음 | 0.3 | Sn-Ag | 1.0 | 0.85 | 0.15 | |
14 | Cu | Ni-Co | 없음 | 0.3 | Sn | 1.2 | 0.82 | 0.38 | |
비교예 | 1 | 없음 | Ni | Cu | 0.3 | Sn | 0.8 | 0.62 | 0.18 |
2 | Cu | Ni | 없음 | 0.3 | Sn | 1.0 | 0.85 | 0.15 | |
3 | 없음 | 없음 | Cu | 0.3 | Sn | 0.8 | 0.23 | 0.57 | |
4 | 없음 | Ni-P | Cu | 0.3 | Sn | 1.0 | 0.95 | 0.05 | |
5 | 없음 | 없음 | Cu | 0.3 | Sn-Ag | 4.0 | 0.86 | 3.1 | |
6 | Cu | Ni | 없음 | 0.3 | Sn | 0.05 | 0.15 | 0.05 | |
7 | 없음 | 없음 | Cu | 0.3 | Sn | 1.0 | 0.81 | 0.19 | |
8 | 없음 | Ni | Cu | 0.3 | Sn | 1.0 | 0.85 | 0.15 | |
9 | 없음 | 없음 | Cu | 0.3 | Sn | 0.8 | 0.57 | 0.23 | |
10 | 없음 | Ni | Cu | 0.3 | Sn | 0.8 | 0.58 | 0.22 | |
11 | 없음 | Ni | Cu | 0.3 | Sn | 1.0 | 0.82 | 0.18 | |
12 | 없음 | 없음 | Cu | 0.3 | Sn | 1.0 | 0.81 | 0.19 | |
13 | 없음 | Ni | Cu | 0.3 | Sn | 1.0 | 0.83 | 0.17 | |
14 | 없음 | Ni | Cu | 0.3 | Sn | 1.0 | 0.80 | 0.20 |
No. |
표면 처리 (인산+ 인산에스테르) |
리플로우 조건 | |||||
방식 | 약품농도 (g/ml) |
1단계 열처리 | 2단계 열처리 | ||||
온도 (℃) |
시간 (초) |
온도 (℃) |
시간 (초) |
||||
발명예 |
1 | 미스트 | 5 | 250 | 3 | 550 | 15 |
2 | 미스트 | 5 | 250 | 3 | 550 | 15 | |
3 | 미스트 | 5 | 250 | 3 | 500 | 15 | |
4 | 미스트 | 5 | 250 | 3 | 550 | 10 | |
5 | 미스트 | 10 | 250 | 3 | 500 | 15 | |
6 | 미스트 | 5 | 250 | 3 | 550 | 15 | |
7 | 미스트 | 7 | 250 | 3 | 550 | 15 | |
8 | 미스트 | 7 | 250 | 3 | 550 | 15 | |
9 | 미스트 | 5 | 250 | 3 | 550 | 15 | |
10 | 미스트 | 7 | 250 | 3 | 600 | 10 | |
11 | 미스트 | 5 | 250 | 3 | 600 | 15 | |
12 | 미스트 | 7 | 250 | 3 | 650 | 20 | |
13 | 미스트 | 7 | 250 | 3 | 600 | 15 | |
14 | 미스트 | 5 | 250 | 3 | 550 | 20 | |
비교예 |
1 | 미스트 | 1 | 250 | 3 | 550 | 8 |
2 | 미스트 | 50 | 250 | 3 | 550 | 8 | |
3 | 미스트 | 7 | 100 | 1 | 350 | 2 | |
4 | 미스트 | 7 | 300 | 35 | 800 | 1500 | |
5 | 미스트 | 7 | 250 | 3 | 550 | 8 | |
6 | 미스트 | 7 | 250 | 3 | 550 | 8 | |
7 | 침적 | 7 | 250 | 3 | 550 | 15 | |
8 | 침적 | 7 | 250 | 3 | 550 | 15 | |
9 | 스프레이 | 7 | 250 | 3 | 550 | 15 | |
10 | 스프레이 | 7 | 250 | 3 | 550 | 15 | |
11 | 미스트 | 7 | - | - | 550 | 15 | |
12 | 미스트 | 7 | - | - | 550 | 15 | |
13 | 미스트 | 7 | 250 | 3 | 550 | 15 | |
14 | 미스트 | 7 | 250 | 3 | 550 | 15 |
No. |
Cu-Sn 화합물 (Cu6Sn5) 결정면 분율 |
주석, 주석합금 결정면 분율 |
마찰계수 |
내열박리성 |
얼룩 |
납땜성 (접음 시간, 초) |
인산염 관계식 (C+P/O) |
||
<2-1-10>||[001] | <123>||[001] | <014>||[001] | |||||||
발명예 |
1 | 28 | 36 | 6 | 0.32 | 양호 | 미발생 | 2.85 | 1.8 |
2 | 33 | 35 | 5 | 0.25 | 양호 | 미발생 | 2.27 | 2.2 | |
3 | 33 | 41 | 5 | 0.21 | 양호 | 미발생 | 1.15 | 2.4 | |
4 | 28 | 36 | 5 | 0.35 | 양호 | 미발생 | 0.65 | 1.6 | |
5 | 25 | 35 | 4 | 0.33 | 양호 | 미발생 | 2.75 | 2.3 | |
6 | 32 | 38 | 7 | 0.18 | 양호 | 미발생 | 0.72 | 2.3 | |
7 | 35 | 37 | 5 | 0.25 | 양호 | 미발생 | 1.25 | 2.3 | |
8 | 32 | 43 | 3 | 0.23 | 양호 | 미발생 | 1.16 | 2.8 | |
9 | 35 | 42 | 4 | 0.27 | 양호 | 미발생 | 0.85 | 2.4 | |
10 | 38 | 40 | 3 | 0.28 | 양호 | 미발생 | 1.34 | 2.2 | |
11 | 34 | 38 | 3 | 0.28 | 양호 | 미발생 | 0.75 | 2.1 | |
12 | 37 | 41 | 4 | 0.29 | 양호 | 미발생 | 0.78 | 2.3 | |
13 | 35 | 42 | 5 | 0.25 | 양호 | 미발생 | 0.92 | 1.9 | |
14 | 36 | 41 | 5 | 0.23 | 양호 | 미발생 | 0.87 | 2.2 | |
비교예 |
1 | 35 | 38 | 5 | 0.46 | 양호 | 미발생 | 2.25 | 0.3 |
2 | 32 | 35 | 7 | 0.22 | 양호 | 발생 | 4.52 | 3.2 | |
3 | 4 | 5 | 18 | 0.53 | 양호 | 미발생 | 0.85 | 2.2 | |
4 | 73 | 68 | 2 | 0.19 | 박리 | 미발생 | 5.21 | 1.6 | |
5 | 8 | 9 | 15 | 0.43 | 양호 | 미발생 | 0.57 | 2.3 | |
6 | 68 | 72 | 3 | 0.28 | 박리 | 미발생 | 0.53 | 2.2 | |
7 | 33 | 41 | 5 | 0.39 | 양호 | 발생 | 4.35 | 3.1 | |
8 | 31 | 42 | 4 | 0.41 | 양호 | 발생 | 4.11 | 3.2 | |
9 | 32 | 38 | 6 | 0.42 | 양호 | 발생 | 3.23 | 2.8 | |
10 | 31 | 37 | 6 | 0.39 | 양호 | 발생 | 3.21 | 2.9 | |
11 | 8 | 35 | 5 | 0.43 | 양호 | 발생 | 1.15 | 3.0 | |
12 | 7 | 36 | 6 | 0.42 | 양호 | 발생 | 0.98 | 3.1 | |
13 | 35 | 41 | 3 | 0.42 | 양호 | 미발생 | 1.25 | 1.8 | |
14 | 36 | 40 | 4 | 0.29 | 불량 | 미발생 | 1.25 | 1.5 |
No. |
도금 조건 |
강도비 | |||
전류 (ASD) |
시간 (Sec.) |
I{002}/I{111} | I{002}/I{022} | ||
발명예 | 8 | 3 | 40 | 1.8 | 13.6 |
10 | 3 | 40 | 1.5 | 18 | |
12 | 3 | 40 | 1.5 | 13.5 | |
비교예 | 13 | 1 | 4 | 2.9 | 6.7 |
14 | 10 | 1500 | 1.1 | 1 |
Claims (11)
- 전기·전자 또는 자동차 부품용 동합금의 주석 도금 방법으로서,
(a) 동합금 모재를 전해 탈지 및 산세하는 단계,
(b) 수득된 생성물을 구리 하지 도금하는 단계,
(c) 수득된 생성물을 주석 또는 주석 합금을 도금하는 단계,
(d) 수득된 생성물을 표면처리제를 미스트 분사하여 표면처리하는 단계, 및
(e) 수득된 생성물을 대기 분위기에서 200~250℃에서 1~30초 동안 실시하는 1단계 열처리, 및 300~700℃에서 3~1200초 동안 실시하는 2단계 열처리를 포함하는 2단계의 리플로우 처리 단계
를 포함하고,
주석 및 주석 합금 도금층 표면에 탄소(C), 인(P), 산소(O) 화합물이 존재하며, 상기 성분에 대한 관계식이 0.5<(C+P)/O<2.5를 만족하며, 수득된 동합금의 주석 도금재는 주석 및 주석 합금의 단면의 EBSD 분석 결과, Cu-Sn 화합물(Cu6Sn5)의 <2-1-10>||[001] 결정방향 분율 10~60%, 주석 또는 주석 합금층의 <123>||[001] 결정방향 분율 10~60%, 및 <014>||[001] 결정방향 분율 10% 이하인 것인, 전기·전자 또는 자동차 부품용 동합금의 주석 도금 방법. - 제 1 항에서,
상기 (b) 구리 하지 도금 전 또는 후에, 니켈 도금을 실시하는 단계를 더 포함하는 것인 전기·전자 또는 자동차 부품용 동합금의 주석 도금 방법. - 제 2 항에 있어서,
니켈 도금층의 XRD 분석 시, {111}, {002}, {022} 결정면에서 {002}, {111} 결정면의 강도비는 1.25<I{002}/I{111}<2를 만족하며, {002}, {022}의 결정면의 강도비는 I{002}/I{022}>10를 만족하는 것인 전기·전자 또는 자동차 부품용 동합금의 주석 도금 방법. - 제 1 항에서,
상기 표면처리제는 인산과 인산 에스테르, 아인산과 아인산 에스테르, 및 차아인산과 차아인산 에스테르로 이루어진 그룹 중에서 선택된 적어도 하나이고, 상기 표면처리제의 농도는 2~10g/mL인 것인 전기·전자 또는 자동차 부품용 동합금의 주석 도금 방법. - 제 1 항에 있어서,
하지 도금의 두께는 0.1~2.0㎛이고, 하지 도금은 구리 도금을 의미하는 것인 전기·전자 또는 자동차 부품용 동합금의 주석 도금 방법. - 제 2 항에 있어서,
하지 도금은 0.1~2.0㎛이고, 구리 도금 및 니켈 도금을 의미하는 것인 전기·전자 또는 자동차 부품용 동합금의 주석 도금 방법. - 제 1 항에 있어서,
주석 도금층의 두께는 0.2~3.0㎛이고, 리플로우 처리 후 Cu-Sn 화합물의 두께는 0.1~1.5㎛이고, 주석의 두께는 0.1~1.5㎛인 것인 전기·전자 또는 자동차 부품용 동합금의 주석 도금 방법. - 제 1 항에 있어서,
주석 도금층은 Sn, Sn-Ag, Sn-Bi, Sn-Zn, Sn-Pb 또는 이들의 조합에서 선택되는 것인 전기·전자 또는 자동차 부품용 동합금의 주석 도금 방법. - 제 2 항에 있어서,
니켈 도금층은 Ni, Ni-Pd, Ni-Co, Ni-Sn, Ni-P 또는 이들의 조합에서 선택되는 것인 전기·전자 또는 자동차 부품용 동합금의 주석 도금 방법. - 삭제
- 삭제
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US16/462,209 US11542606B2 (en) | 2017-06-08 | 2018-05-08 | Method of tin-plating copper alloy for electric or electronic parts and automobile parts and tin-plating material of copper alloy manufactured therefrom |
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PCT/KR2018/005248 WO2018225957A1 (ko) | 2017-06-08 | 2018-05-08 | 전기·전자, 자동차 부품용 동합금의 주석 도금 방법 및 이로부터 제조된 동합금의 주석 도금재 |
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