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為電路板鍍錫?
也許你剛(gang)剛(gang)完成項(xiang)目中電(dian)路(lu)(lu)(lu)板的蝕刻環節,一切(qie)看起來很成功。但你也會(hui)知道,隨著時間的推移,電(dian)路(lu)(lu)(lu)板上(shang)的銅(tong)走線(xian)會(hui)慢慢變黑、變綠。本文將介紹一種在電(dian)路(lu)(lu)(lu)板的銅(tong)走線(xian)上(shang)鍍錫的簡單方(fang)法。如果你已經(jing)準備好所有材料(liao),那就再好不過(guo)了!
準(zhun)備好焊(han)料、助(zhu)焊(han)劑(ji)、焊(han)芯以及助(zhu)焊(han)劑(ji)清潔劑(ji)之(zhi)后,銅鍍錫價(jia)格(ge),就(jiu)可(ke)以進行下(xia)一(yi)步(bu)操作(zuo)了。如果你的材(cai)料不全(quan),我會在本文(wen)末尾附上零件清單,以便你準(zhun)備相關材(cai)料。
首先將焊料助焊劑涂在裸板上——請務必涂抹充足的劑量。然后在一條吸錫帶上鍍上一些焊料。確保吸錫帶上有足夠的焊料。
電鍍
的(de)具體過程是怎(zen)樣的(de)?
利用(yong)(yong)電(dian)(dian)(dian)(dian)解原理在(zai)某些金(jin)(jin)(jin)屬(shu)表(biao)面(mian)(mian)上(shang)(shang)(shang)(shang)鍍(du)(du)(du)(du)(du)(du)上(shang)(shang)(shang)(shang)一(yi)薄層(ceng)(ceng)其它(ta)金(jin)(jin)(jin)屬(shu)或(huo)合(he)金(jin)(jin)(jin)的(de)(de)過程。電(dian)(dian)(dian)(dian)鍍(du)(du)(du)(du)(du)(du)時,鍍(du)(du)(du)(du)(du)(du)層(ceng)(ceng)金(jin)(jin)(jin)屬(shu)做(zuo)陽極,被氧化(hua)(hua)成陽離(li)(li)(li)子進入電(dian)(dian)(dian)(dian)鍍(du)(du)(du)(du)(du)(du)液(ye);待鍍(du)(du)(du)(du)(du)(du)的(de)(de)金(jin)(jin)(jin)屬(shu)制品做(zuo)陰極,鍍(du)(du)(du)(du)(du)(du)層(ceng)(ceng)金(jin)(jin)(jin)屬(shu)的(de)(de)陽離(li)(li)(li)子在(zai)金(jin)(jin)(jin)屬(shu)表(biao)面(mian)(mian)被還原形(xing)成鍍(du)(du)(du)(du)(du)(du)層(ceng)(ceng)。為(wei)排除其它(ta)陽離(li)(li)(li)子的(de)(de)干擾,且(qie)使鍍(du)(du)(du)(du)(du)(du)層(ceng)(ceng)均勻、牢固(gu),需用(yong)(yong)含鍍(du)(du)(du)(du)(du)(du)層(ceng)(ceng)金(jin)(jin)(jin)屬(shu)陽離(li)(li)(li)子的(de)(de)溶液(ye)做(zuo)電(dian)(dian)(dian)(dian)鍍(du)(du)(du)(du)(du)(du)液(ye),以(yi)保持(chi)鍍(du)(du)(du)(du)(du)(du)層(ceng)(ceng)金(jin)(jin)(jin)屬(shu)陽離(li)(li)(li)子的(de)(de)濃度不變(bian)。電(dian)(dian)(dian)(dian)鍍(du)(du)(du)(du)(du)(du)的(de)(de)目(mu)的(de)(de)是(shi)在(zai)基(ji)(ji)(ji)材(cai)上(shang)(shang)(shang)(shang)鍍(du)(du)(du)(du)(du)(du)上(shang)(shang)(shang)(shang)金(jin)(jin)(jin)屬(shu)鍍(du)(du)(du)(du)(du)(du)層(ceng)(ceng)(deit),改(gai)變(bian)基(ji)(ji)(ji)材(cai)表(biao)面(mian)(mian)性質或(huo)尺寸.電(dian)(dian)(dian)(dian)鍍(du)(du)(du)(du)(du)(du)能(neng)增強金(jin)(jin)(jin)屬(shu)的(de)(de)抗腐(fu)蝕性(鍍(du)(du)(du)(du)(du)(du)層(ceng)(ceng)金(jin)(jin)(jin)屬(shu)多采用(yong)(yong)耐腐(fu)蝕的(de)(de)金(jin)(jin)(jin)屬(shu))、增加硬度、防止(zhi)磨耗、提高導電(dian)(dian)(dian)(dian)性、潤滑(hua)性、耐熱(re)性、和(he)表(biao)面(mian)(mian)美觀。 電(dian)(dian)(dian)(dian)鍍(du)(du)(du)(du)(du)(du)作(zuo)用(yong)(yong): 利用(yong)(yong)電(dian)(dian)(dian)(dian)解作(zuo)用(yong)(yong)在(zai)機械(xie)制品上(shang)(shang)(shang)(shang)沉積出附著(zhu)良好的(de)(de)、但(dan)性能(neng)和(he)基(ji)(ji)(ji)體(ti)材(cai)料不同(tong)的(de)(de)金(jin)(jin)(jin)屬(shu)覆(fu)層(ceng)(ceng)的(de)(de)技術。電(dian)(dian)(dian)(dian)鍍(du)(du)(du)(du)(du)(du)層(ceng)(ceng)比熱(re)浸層(ceng)(ceng)均勻,一(yi)般都(dou)較薄,從幾個微米(mi)到(dao)幾十微米(mi)不等。通(tong)過電(dian)(dian)(dian)(dian)鍍(du)(du)(du)(du)(du)(du),可以(yi)在(zai)機械(xie)制品上(shang)(shang)(shang)(shang)獲得裝飾保護性和(he)各(ge)種(zhong)功能(neng)性的(de)(de)表(biao)面(mian)(mian)層(ceng)(ceng),還可以(yi)修復磨損和(he)加工(gong)失(shi)誤(wu)的(de)(de)工(gong)件。鍍(du)(du)(du)(du)(du)(du)層(ceng)(ceng)大多是(shi)單(dan)一(yi)金(jin)(jin)(jin)屬(shu)或(huo)合(he)金(jin)(jin)(jin),如鈦靶、鋅、鎘(ge)、金(jin)(jin)(jin)或(huo)黃銅(tong)、青銅(tong)等;也有(you)彌散層(ceng)(ceng),池州(zhou)鍍(du)(du)(du)(du)(du)(du)金(jin)(jin)(jin),如鎳(nie)-碳化(hua)(hua)硅、鎳(nie)-氟化(hua)(hua)石墨(mo)等;還有(you)覆(fu)合(he)層(ceng)(ceng),如鋼(gang)上(shang)(shang)(shang)(shang)的(de)(de)銅(tong)-鎳(nie)-鉻層(ceng)(ceng)、鋼(gang)上(shang)(shang)(shang)(shang)的(de)(de)銀-銦層(ceng)(ceng)等。電(dian)(dian)(dian)(dian)鍍(du)(du)(du)(du)(du)(du)的(de)(de)基(ji)(ji)(ji)體(ti)材(cai)料除鐵基(ji)(ji)(ji)的(de)(de)鑄(zhu)鐵、鋼(gang)和(he)不銹鋼(gang)外(wai),還有(you)非鐵金(jin)(jin)(jin)屬(shu),鍍(du)(du)(du)(du)(du)(du)金(jin)(jin)(jin)多少錢(qian),如ABS塑料、聚、聚砜和(he)酚醛塑料,但(dan)塑料電(dian)(dian)(dian)(dian)鍍(du)(du)(du)(du)(du)(du)前,鍍(du)(du)(du)(du)(du)(du)金(jin)(jin)(jin)加工(gong),必須(xu)經過特殊的(de)(de)活化(hua)(hua)和(he)敏化(hua)(hua)處(chu)理。
過程: 1 把鍍層金(jin)屬接在陽極 2 要(yao)鍍件接在陰極 3 陰陽極以鍍上去的(de)(de)(de)金(jin)屬的(de)(de)(de)正(zheng)離(li)子(zi)(zi)組成(cheng)的(de)(de)(de)電(dian)(dian)(dian)解質溶液相(xiang)連 4 通以直流電(dian)(dian)(dian)的(de)(de)(de)電(dian)(dian)(dian)源后(hou)(hou),陽極的(de)(de)(de)金(jin)屬會進行氧化(失去電(dian)(dian)(dian)子(zi)(zi)),溶液中的(de)(de)(de)正(zheng)離(li)子(zi)(zi)則在陰極還原(得(de)到電(dian)(dian)(dian)子(zi)(zi))成(cheng)原子(zi)(zi)并積(ji)聚在負極表層。 電(dian)(dian)(dian)鍍后(hou)(hou)被電(dian)(dian)(dian)鍍物件的(de)(de)(de)美觀性(xing)和電(dian)(dian)(dian)流大小有關系,電(dian)(dian)(dian)流越小,被電(dian)(dian)(dian)鍍的(de)(de)(de)物件便會越美觀;反之(zhi)則會出現一些不平整的(de)(de)(de)形狀。 電(dian)(dian)(dian)鍍的(de)(de)(de)主要(yao)用(yong)途包括防(fang)止(zhi)金(jin)屬氧化 (如(ru)銹(xiu)蝕) 以及進行裝飾。不少的(de)(de)(de)外層亦為電(dian)(dian)(dian)鍍。 電(dian)(dian)(dian)鍍產(chan)生的(de)(de)(de)污(wu)水(shui)(如(ru)失去效用(yong)的(de)(de)(de)電(dian)(dian)(dian)解質)是水(shui)污(wu)染的(de)(de)(de)重要(yao)來源。
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