本文來自專業焊錫廠綠誌島焊錫金屬有限公司 2015-9-30
助焊劑用於輔助焊接,按照正常的焊錫技術流程,助焊劑在焊後會有物質殘留在PCB板ban上shang。對dui於yu焊han錫xi工gong藝yi要yao求qiu高gao的de印yin製zhi板ban,使shi用yong的de不bu管guan是shi焊han錫xi絲si等deng焊han錫xi材cai料liao還hai是shi助zhu焊han劑ji,都dou需xu要yao對dui其qi品pin質zhi做zuo嚴yan格ge管guan控kong。那na麼me對dui助zhu焊han劑ji會hui產chan生sheng的de殘can留liu物wu質zhi,將jiang做zuo哪na些xie測ce試shi呢ne,其qi測ce試shi作zuo用yong又you是shi什shen麼me呢ne?
lvzhidaofeichangzixinzijichupindezhuhanjipinzhinengdeyonghuxinlai,yehuiyangeyaoqiuzijishengchandezhuhanjidegexiangzhibiao。xiamianlvzhidaolaijieshaoyixialvzhidaodezhuhanjidouxuyaozuonaxieceshi。
1.銅鏡腐蝕測試:測試助焊劑的短期腐蝕性;
2.鉻酸銀試紙測試:測試助焊劑中鹵化物的含量;
3.表麵絕緣電阻測試:測試焊接後PCB板的表麵絕緣電阻,以確保助焊劑的長期電學性能的可靠性;
4.腐蝕性測試:測試焊接後助焊劑在PCB板表麵的殘留物的腐蝕性;
5.電遷移測試:測試焊接後PCB表麵導體間距減小的程度。
相關文章
助焊劑的主要成分和用途
助焊劑的使用
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