從事焊錫行業的人士都知道，不管是無鉛焊錫條還(hai)是(shi)有(you)鉛(qian)焊(han)錫(xi)條(tiao)，在(zai)焊(han)錫(xi)的(de)過(guo)程(cheng)中(zhong)都(dou)會(hui)有(you)少(shao)量(liang)的(de)錫(xi)渣(zha)產(chan)生(sheng)
，其(qi)實(shi)這(zhe)是(shi)很(hen)正(zheng)常(chang)的(de)氧(yang)化(hua)現(xian)象(xiang)。成(cheng)品(pin)的(de)有(you)鉛(qian)焊(han)錫(xi)條(tiao)或(huo)成(cheng)品(pin)的(de)無(wu)鉛(qian)焊(han)錫(xi)條(tiao)，未(wei)封(feng)箱(xiang)就(jiu)放(fang)置(zhi)在(zai)空(kong)氣(qi)中(zhong)就(jiu)會(hui)很(hen)容(rong)易(yi)就(jiu)發(fa)生(sheng)氧(yang)化(hua)現(xian)象(xiang)。本(ben)來(lai)外(wai)表(biao)光(guang)亮(liang)清(qing)晰(xi)的(de)焊(han)錫(xi)條(tiao)經(jing)過(guo)氧(yang)化(hua)後(hou)，就(jiu)會(hui)變(bian)得(de)黯(an)淡(dan)無(wu)光(guang)，用(yong)手(shou)或(huo)白(bai)紙(zhi)擦(ca)拭(shi)焊(han)錫(xi)條(tiao)的(de)表(biao)麵(mian)
，你(ni)就(jiu)能(neng)看(kan)到(dao)手(shou)上(shang)或(huo)白(bai)紙(zhi)上(shang)附(fu)著(zhe)著(zhe)黑(hei)色(se)粉(fen)末(mo)
，這(zhe)就(jiu)是(shi)焊(han)錫(xi)條(tiao)發(fa)生(sheng)氧(yang)化(hua)反(fan)應(ying)產(chan)生(sheng)的(de)氧(yang)化(hua)產(chan)物(wu)，即(ji)是(shi)焊(han)錫(xi)渣(zha)或(huo)者(zhe)叫(jiao)錫(xi)灰(hui)。

        有you鉛qian焊han錫xi條tiao和he無wu鉛qian焊han錫xi條tiao都dou是shi錫xi合he金jin，錫xi合he金jin中zhong的de錫xi化hua學xue性xing質zhi不bu穩wen定ding
，與yu空kong氣qi接jie觸chu得de越yue久jiu，就jiu越yue容rong易yi發fa生sheng化hua學xue反fan應ying產chan生sheng焊han錫xi條tiao的de氧yang化hua物wu焊han錫xi渣zha。在zai焊han錫xi過guo程cheng中zhong，焊han錫xi條tiao經jing過guo高gao溫wen熔rong化hua
，從cong固gu態tai變bian成cheng液ye態tai，液ye態tai加jia大da了le焊han錫xi條tiao和he空kong氣qi的de接jie觸chu麵mian積ji，從cong而er加jia快kuai了le焊han錫xi條tiao的de氧yang化hua速su度du
，錫xi渣zha也ye就jiu越yue來lai越yue多duo。

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