Wadanne al'amura ya kamata a kula da su a cikin tsabtace pcba?

PCBA aiki, a cikin SMT da DIP toshe-in soldering, surface na solder gidajen abinci zai zama saura wasu juyi rosin, da dai sauransu .. The saura ya ƙunshi lalata abubuwa, saura a cikin pcba kushin aka gyara a sama, na iya haifar da yayyo, short kewaye da haka shafi rayuwar samfurin.Ragowar yana da datti, bai cika buƙatun tsabtace samfur ba, don haka pcba yana buƙatar tsaftacewa kafin jigilar kaya.Masu zuwa suna ɗaukar ku don fahimtar tsarin samar da ruwa na pcba wanke wasu nasiha da matakan tsaro.

Tare da miniaturization na lantarki kayayyakin, lantarki aka gyara yawa, kananan tazara, tsaftacewa ya zama ƙara wuya, a cikin zabi na abin da tsaftacewa tsari, bisa ga irin solder manna da juyi, muhimmancin samfurin, abokin ciniki ta bukatun ga tsaftacewa ingancin. don zaɓar.

I. PCBA hanyoyin tsaftacewa

1. Tsaftace ruwa mai tsabta: fesa ko tsoma wanka

Tsabtace ruwa mai tsabta shine a yi amfani da ruwa mai tsafta, fesa ko tsomawa, amintaccen amfani, bushewa bayan tsaftacewa, wannan tsaftacewa yana da arha kuma mai lafiya, amma wasu ganima ba su da sauƙin cirewa.

2. Tsaftataccen ruwa mai tsabta

Tsabtace ruwa mai tsafta shine amfani da magungunan kwayoyin halitta da ruwa mai tsafta, wanda ya kara wasu wakilai masu aiki, additives don samar da wakili mai tsaftacewa, wannan mai tsaftacewa ya ƙunshi magungunan kwayoyin halitta, ƙananan ƙwayar cuta, amfani da mafi aminci, amma don wankewa da ruwa, sa'an nan kuma bushe. .

3. Ultrasonic tsaftacewa

Yin amfani da matsakaicin matsakaicin matsakaicin ruwa a cikin kuzarin motsa jiki, samuwar ƙananan kumfa marasa adadi da ke bugun saman abin, ta yadda dattin ya kashe, don cimma tasirin tsaftace ƙazanta, mai inganci sosai. , amma kuma don rage tsangwama na lantarki.

II.PCBA tsaftacewa fasaha bukatun

1. PCBA surface waldi aka gyara ba tare da musamman bukatun, duk kayayyakin za a iya amfani da su tsaftace PCBA hukumar da musamman tsaftacewa jamiái.

2. Wasu kayan lantarki an hana su tuntuɓar wakili na musamman na tsaftacewa, kamar: maɓallin maɓalli, soket na cibiyar sadarwa, buzzer, sel baturi, nunin LCD, abubuwan filastik, ruwan tabarau, da sauransu.

3. A tsaftacewa tsari, ba zai iya amfani da tweezers da sauran karfe kai tsaye lamba PCBA, don haka kamar yadda ba su lalata PCBA hukumar surface, karce.

4. PCBA bayan aka gyara soldering, juyi saura a kan lokaci zai samar da lalata jiki dauki, ya kamata a tsabtace da wuri-wuri.

5. An kammala tsaftace PCBA, ya kamata a sanya shi a cikin tanda na kimanin digiri 40-50, bayan minti 30 na yin burodi, sa'an nan kuma cire PCBA Board bayan bushewa.

III.PCBA tsaftacewa kariya

1. PCBA hukumar surface ba zai iya zama saura juyi, kwano beads da dross;surface da solder gidajen abinci ba zai iya samun fari, launin toka sabon abu.

2. PCBA jirgin saman ba zai iya zama m;dole ne tsaftacewa ya sa zoben hannu na lantarki.

3. PCBA dole ne ya sa abin rufe fuska mai kariya kafin tsaftacewa.

4. An tsabtace allon PCBA kuma ba a tsaftace allon PCBA ba daban kuma an yi masa alama.

5. An haramta kwamitin PCBA mai tsabta don taɓa saman da hannu kai tsaye.