Ubushyuhe bwa Chengyuan bugabanijwe cyane mubice bine byubushyuhe: agace gashyuha, agace gahoraho k'ubushyuhe, akarere kagurisha, na zone ikonje.
1. Agace gashyuha
Gushyushya nicyiciro cyambere cyibikorwa byo kugurisha.Muri iki cyiciro cyo kugaruka, inteko yumuzunguruko yose ikomeza gushyukwa yerekeza ku bushyuhe bwateganijwe.Intego nyamukuru yicyiciro cya preheat nukuzana inteko yose yubuyobozi neza kugirango ubushyuhe bwerekanwe mbere.Gushyushya kandi ni amahirwe yo gutesha agaciro umuyaga uhindagurika muri paste yagurishijwe.Kugirango ibishishwa bya paste bishoboke kandi inteko igere neza kubushyuhe bwambere, PCB igomba gushyuha muburyo buhoraho, kumurongo.Ikimenyetso cyingenzi cyicyiciro cya mbere cyibikorwa byo kugaruka ni ahantu hahanamye cyangwa ubushyuhe bwigihe.Ubusanzwe bipimwa kuri dogere selisiyusi kumasegonda C / s.Impinduka nyinshi zirashobora kugira ingaruka kuri iyi shusho, harimo: igihe cyo gutunganya intego, kugurisha paste ihindagurika, hamwe nibitekerezo.Ni ngombwa gusuzuma ibyo byose bihinduka, ariko mubihe byinshi gutekereza kubintu byoroshye ni ngombwa.“Ibice byinshi bizacika niba ubushyuhe buhindutse vuba.Igipimo ntarengwa cy’imihindagurikire y’ubushyuhe ibintu byoroshye cyane bishobora kwihanganira bihinduka ahantu hashobora kwemerwa. ”Nyamara, ahahanamye harashobora guhindurwa kugirango hongerwe igihe cyo gutunganya niba ibintu byangiza ubushyuhe bidakoreshwa kandi kugirango byinjizwe neza.Kubwibyo, abayikora benshi bongera imisozi kugera ku gipimo ntarengwa cyemewe cya 3.0 ° C / sek.Ibinyuranye, niba ukoresha paste igurisha irimo umusemburo ukomeye cyane, gushyushya ibice byihuse birashobora gukora inzira yo guhunga.Nkumuti uhindagurika uhindagurika, barashobora gusasa uwagurishije kumapeti no kubibaho.Imipira igurisha nikibazo nyamukuru cyo gusohora urugomo mugihe cyo gushyuha.Ikibaho kimaze kuzamurwa mubushyuhe mugihe cyicyiciro kibanziriza ubushyuhe, kigomba kwinjira mubyiciro byubushyuhe buhoraho cyangwa mbere yo kwerekana.
2. Ubushuhe buhoraho
Agace k'ubushyuhe gahoraho ubusanzwe ni 60 kugeza 120 isegonda ya kabiri yo gukuraho ibicuruzwa bya paste paste no kugurisha kwa flux, aho itsinda rya flux ritangira redox kubintu biganisha hamwe na padi.Ubushyuhe bukabije burashobora gutera gutemba cyangwa gukubita umugurisha hamwe na okiside ya paste yagurishijwe hamwe nudupapuro twinshi.Na none, niba ubushyuhe buri hasi cyane, flux ntishobora gukora neza.
3. Ahantu ho gusudira
Ubushuhe busanzwe buri hejuru ya 20-40 ° C hejuru ya fluidus.[1] Iyi mipaka igenwa nigice gifite ubushyuhe bwo hasi cyane (igice gishobora kwibasirwa nubushyuhe) ku nteko.Amabwiriza ngenderwaho ni ugukuramo 5 ° C mubushyuhe ntarengwa ikintu cyoroshye cyane gishobora kwihanganira kugera kubushyuhe ntarengwa.Ni ngombwa gukurikirana ubushyuhe bwibikorwa kugirango wirinde kurenga iyi mipaka.Byongeye kandi, ubushyuhe bwo hejuru (hejuru ya 260 ° C) bushobora kwangiza imitwe yimbere yibigize SMT kandi bigatera imbere gukura kwimvange.Ibinyuranye, ubushyuhe budashyushye bihagije birashobora kubuza guhubuka kugaragara bihagije.
4. Agace gakonje
Agace kanyuma nigice gikonjesha kugirango buhoro buhoro gukonjesha ikibaho cyatunganijwe no gushimangira ingingo zagurishijwe.Gukonjesha neza birwanya guhuza ibice bidakenewe cyangwa guhuza ubushyuhe kubice.Ubushyuhe busanzwe muri zone ikonje buri hagati ya 30-100 ° C.Igipimo cyo gukonja cya 4 ° C / s muri rusange birasabwa.Nibintu byo gusuzuma mugihe dusesenguye ibisubizo byibikorwa.
Kubindi bisobanuro bijyanye na tekinoroji yo kugurisha, nyamuneka reba izindi ngingo za Chengyuan Industrial Automation ibikoresho
Igihe cyo kohereza: Jun-09-2023