使用焊(han)(han)(han)(han)錫(xi)線(xian)(xian)焊(han)(han)(han)(han)接(jie)所有(you)的焊(han)(han)(han)(han)接(jie)點都(dou)必須充(chong)實而(er)整齊美觀，特別是(shi)表面(mian)光澤度。焊(han)(han)(han)(han)錫(xi)線(xian)(xian)的焊(han)(han)(han)(han)接(jie)點沒有(you)遺漏未焊(han)(han)(han)(han)之處(chu)。焊(han)(han)(han)(han)錫(xi)線(xian)(xian)沒有(you)因(yin)為(wei)(wei)過熱或(huo)溫(wen)度不(bu)足，而(er)形成(cheng)針尖、滴(di)垂(chui)、粗糙、松(song)香黏著(zhu)等(deng)(deng)情形。焊(han)(han)(han)(han)錫(xi)充(chong)分滲入接(jie)合部(bu)(bu)(bu)位。導(dao)體所有(you)露出(chu)部(bu)(bu)(bu)份是(shi)否(fou)都(dou)被焊(han)(han)(han)(han)錫(xi)覆(fu)蓋著(zhu)。相鄰端子(zi)間隙不(bu)能(neng)(neng)太(tai)狹窄。絕原材料及焊(han)(han)(han)(han)錫(xi)線(xian)(xian)焊(han)(han)(han)(han)接(jie)部(bu)(bu)(bu)份如有(you)接(jie)合部(bu)(bu)(bu)份，不(bu)能(neng)(neng)因(yin)為(wei)(wei)加熱而(er)產生劣(lie)化、損毀(hui)。焊(han)(han)(han)(han)錫(xi)線(xian)(xian)中松(song)香不(bu)可(ke)(ke)飛散(san)侵入接(jie)觸部(bu)(bu)(bu)位或(huo)應(ying)留著(zhu)的間隙內。電線(xian)(xian)的補覆(fu)不(bu)可(ke)(ke)夾入在焊(han)(han)(han)(han)錫(xi)中。不(bu)可(ke)(ke)有(you)腐(fu)蝕之現象。焊(han)(han)(han)(han)錫(xi)線(xian)(xian)不(bu)可(ke)(ke)散(san)落在機器內或(huo)機器上。電線(xian)(xian)之末端處(chu)理是(shi)否(fou)完好，有(you)無松(song)散(san)或(huo)分歧等(deng)(deng)不(bu)良現象。線(xian)(xian)端不(bu)可(ke)(ke)突出(chu)在焊(han)(han)(han)(han)錫(xi)表面(mian)上。