異型焊錫絲的金屬成分確定後，那麼焊錫絲內部的助焊劑zhiliangjiujuedinggaihanxisidehanjiezhilianghehanjiexiaolv。ruguoshiyongwendushaogaodelaotietou，hanxisidecanliuwujiuyinggaibuhuifashengshaojiaohuozheshiyansebianandeqingkuang。zhuhanjizaihanjieshiyebuyinggaichuxianfeijianhuozheqihendadenongyan。zhuhanjiruoshikeshuixixingdaixinhanliao
，yongreshuijiuyinggairongyiquchu。gaihanxisidezhuhanjihaibixuyaoyouzugoudehuoxing，bingnenggouzaihelaotietoujiechushihainengbaochizugoudehuoxing。ruoshimianqingxixingzhuhanji，namehanhoudecanliuwubixushiwuduwuweihaide。

        助zhu焊han劑ji應ying該gai對dui各ge種zhong類lei型xing的de線xian路lu板ban和he元yuan器qi件jian都dou能neng進jin行xing焊han接jie。異yi型xing焊han錫xi絲si通tong常chang需xu要yao電dian烙lao鐵tie配pei合he著zhe使shi用yong的de，那na麼me電dian烙lao鐵tie的de使shi用yong對dui焊han錫xi絲si的de焊han接jie質zhi量liang也ye有you著zhe一yi定ding的de影ying響xiang。設she定ding烙lao鐵tie頭tou的de溫wen度du時shi需xu要yao考kao慮lv電dian子zi元yuan器qi件jian的de耐nai熱re性xing和he安an全quan性xing，避bi免mian溫wen度du太tai高gao燙tang壞huai電dian路lu板ban和he元yuan器qi件jian。其qi實shi可ke以yi選xuan用yong恒heng溫wen電dian烙lao鐵tie
，讓rang焊han錫xi絲si的de焊han接jie工gong作zuo具ju有you連lian續xu性xing和he持chi久jiu性xing
，也ye能neng讓rang焊han錫xi絲si的de焊han接jie更geng有you效xiao率lv和he質zhi量liang。

        異yi型xing焊han錫xi絲si在zai焊han接jie開kai始shi前qian要yao用yong測ce溫wen計ji測ce定ding烙lao鐵tie頭tou的de溫wen度du，烙lao鐵tie頭tou的de溫wen度du很hen高gao，要yao小xiao心xin被bei燙tang傷shang。焊han錫xi絲si的de焊han接jie過guo程cheng盡jin量liang要yao短duan

，以yi免mian損sun壞huai電dian路lu板ban。