Kodi uvuni wa reflow umakhala ndi dongosolo lanji?

NeoDen IN12

Reflow uvuniimagwiritsidwa ntchito popanga zida za solder board boardMtengo wa magawo SMT.Ubwino wa reflow soldering makina ndikuti kutentha kumayendetsedwa mosavuta, oxidation imapewa panthawi yowotcherera, ndipo ndalama zopangira zimawongoleredwa mosavuta.Pali dera lotenthetsera mkati mwa ng'anjo ya reflow, ndipo nayitrogeni imatenthedwa mpaka kutentha kokwanira ndikuwomberedwa ku bolodi ladera lomwe lalumikizidwa ndi zigawozo, kotero kuti solder kumbali zonse ziwiri za zigawozo zidzasungunuka ndikumangirira. motherboard.Kodi kapangidwe ka ng'anjo ya reflow ndi chiyani?Chonde onani zotsatirazi:
Uvuni wa reflow umapangidwa makamaka ndi kayendedwe ka mpweya, makina otenthetsera, makina oziziritsa, njira yotumizira, njira yopulumutsira, kutulutsa mpweya wotulutsa mpweya komanso chipangizo chobwezeretsa, kapu yamagetsi okweza mpweya, chipangizo chotulutsa mpweya ndi zida zina ndi mawonekedwe.

I. Air flow system ya reflow uvuni
Udindo wa kayendedwe ka mpweya ndiwokwera kwambiri, kuphatikiza kuthamanga, kuyenda, fluidity ndi permeability.

II.Reflow uvuni kutentha dongosolo
Makina otenthetsera amapangidwa ndi mota yotentha, chubu chotenthetsera, thermocouple, solid state relay, chipangizo chowongolera kutentha ndi zina zotero.

III.Kuzirala dongosolo lareflow uvuni
Ntchito ya kuzirala ndikuziziritsa PCB yotentha mwachangu.Nthawi zambiri pamakhala njira ziwiri: kuziziritsa mpweya ndi kuziziritsa madzi.

IV.Reflow soldering makina oyendetsa galimoto
Dongosolo lotumizira limaphatikizapo lamba wa mauna, njanji yowongolera, chithandizo chapakati, unyolo, mota yamagalimoto, mawonekedwe osinthira m'lifupi, makina owongolera liwiro ndi magawo ena.

V. Flux kuchira dongosolo kwa reflow uvuni
Flux utsi mpweya kuchira dongosolo zambiri okonzeka ndi evaporator, kudzera evaporator adzakhala kutentha utsi mpweya woposa 450 ℃, ndi flux volatiles gasification, ndiyeno madzi kuzirala makina pambuyo kuzungulira mwa evaporator, flux kudzera chapamwamba zimakupiza m'zigawo, kudzera mu evaporator kuzirala kwamadzimadzi opita ku thanki yochira.

VI.Kuchiza kwa gasi wowonongeka ndi chipangizo chobwezeretsa cha uvuni wa reflow
Cholinga cha zinyalala gasi mankhwala ndi kuchira chipangizo makamaka ali mfundo zitatu: zachilengedwe zofunika chitetezo, musalole kusinthasintha volatiles mwachindunji mu mlengalenga;Kukhazikika ndi kugwa kwa gasi wotayika mu ng'anjo yotsitsimutsa kudzakhudza kuyenda kwa mpweya wotentha ndikuchepetsa mphamvu ya convection, chifukwa chake iyenera kubwezeretsedwanso.Ngati ng'anjo ya nitrogen reflow yasankhidwa, kuti mupulumutse nayitrogeni, m'pofunika kukonzanso nayitrogeni.Dongosolo lotulutsa mpweya wotulutsa mpweya liyenera kukhala ndi zida.

VII.Chida chokwezera kuthamanga kwa mpweya cha makina a reflow soldering pamwamba chivundikiro
Chivundikiro chapamwamba cha ng'anjo ya reflow soldering chikhoza kutsegulidwa chonse kuti chithandizire kuyeretsa ng'anjo ya reflow soldering.Pamene mbale ikugwa panthawi yokonza kapena kupanga ng'anjo ya reflow soldering, chivundikiro chapamwamba cha reflow soldering ng'anjo chiyenera kutsegulidwa.

VIII.Reflow soldering mawonekedwe mawonekedwe a makina
Mapangidwe akunja amawotcherera ndi chitsulo chachitsulo.