Pakadali pano, ambiri opanga zida zamagetsi zamagetsi kunyumba ndi kunja apereka lingaliro latsopano lokonzekera zida "kukonza kolumikizana" kuti achepetse kukhudzidwa kwa kukonza pakupanga bwino.Ndiko kuti, pamene ng'anjo ya reflow ikugwira ntchito mokwanira, makina osinthika osinthika a zida amagwiritsidwa ntchito kupanga kukonza ndi kukonza ng'anjo ya reflow yogwirizana kwathunthu ndi kupanga.Kapangidwe kameneka kamasiyiratu lingaliro loyambirira la "kukonza zotsekera", ndikupititsa patsogolo kupanga bwino kwa mzere wonse wa SMT.
Zofunikira pakukhazikitsa ndondomeko:
Zida zamtengo wapatali zimatha kupindula kokha pogwiritsa ntchito akatswiri.Pakalipano, mavuto ambiri omwe amakumana nawo ambiri opanga pakupanga zopangira zopanda kutsogolera sizinangochokera ku zipangizo zokha, koma ziyenera kuthetsedwa mwa kusintha kwa ndondomekoyi.
l Kukhazikitsa kopindika kwa kutentha kwa ng'anjo
Chifukwa chakuti zenera lazitsulo lopanda kutsogolera liri laling'ono kwambiri, ndipo tiyenera kuonetsetsa kuti zida zonse za solder zili mkati mwawindo la ndondomeko panthawi imodzimodziyo m'dera la reflow, choncho, phokoso lopanda kutsogolera lopanda kutsogolera nthawi zambiri limayika "pamwamba pamutu" (pambuyo pake) onani Chithunzi 9).
Chithunzi 9 "Flat top" mu ng'anjo yokhotakhota kutentha
Ngati zigawo zoyambirira pa bolodi la dera zili ndi kusiyana pang'ono mu mphamvu ya kutentha koma zimakhudzidwa kwambiri ndi kutentha kwa kutentha, ndi bwino kugwiritsa ntchito "mzere" wopindika kutentha kwa ng'anjo.(Onani chithunzi 10)
Chithunzi 10 "Linear" kutentha kwa ng'anjo yopindika
Kukonzekera ndi kusintha kwa kutentha kwa ng'anjo kumadalira zinthu zambiri monga zida, zigawo zoyambirira, phala la solder, ndi zina zotero. Njira yokhazikitsira si yofanana, ndipo chidziwitso chiyenera kusonkhanitsidwa kupyolera muzoyesera.
l ng'anjo kutentha pamapindikira kayeseleledwe mapulogalamu
Ndiye pali njira zina zomwe zingatithandize mwachangu komanso molondola kuyika kutentha kwa ng'anjo?Titha kuganizira kupanga mapulogalamu mothandizidwa ndi ng'anjo kutentha pamapindikira kayeseleledwe.
Nthawi zonse, bola ngati tiwuza pulogalamuyo momwe gulu laderali lilili, momwe chipangizocho chilili, nthawi ya bolodi, liwiro la unyolo, kutentha kwanyengo ndi kusankha kwa zida, pulogalamuyo imatsanzira kutentha kwa ng'anjo komwe kumapangidwa. pamikhalidwe yotere.Izi zidzasinthidwa osagwiritsa ntchito intaneti mpaka kutentha kwa ng'anjo yokwanira kupezeke.Izi zitha kupulumutsa kwambiri nthawi ya akatswiri opanga ma process kuti asinthe mobwerezabwereza pamapindikira, zomwe ndizofunikira kwambiri kwa opanga omwe ali ndi mitundu yambiri ndi magulu ang'onoang'ono.
Tsogolo laukadaulo wa reflow soldering
Zogulitsa zam'manja zam'manja ndi zida zankhondo zimakhala ndi zofunikira zosiyanasiyana pakuwotchera reflow, komanso kupanga ma board board ndi kupanga semiconductor kumakhala ndi zofunikira zosiyanasiyana pakuwotcheranso.Zopanga zazing'ono komanso zazikuluzikulu zidayamba kuchepa pang'onopang'ono, ndipo kusiyana kwa zida zopangira zinthu zosiyanasiyana kunayamba kuwonekera tsiku ndi tsiku.Kusiyanitsa pakati pa reflow soldering m'tsogolomu sikudzangowoneka kokha mu kuchuluka kwa kutentha ndi kusankha kwa nayitrogeni, msika wa reflow soldering upitirire kugawidwa, womwe ndi njira yodziwikiratu yaukadaulo wa reflow soldering mtsogolo.
Nthawi yotumiza: Aug-14-2020