Taw qhia
Kev siv kom raugreflow solderingTsis tsuas yog cuam tshuam rau qhov zoo ntawm soldering tab sis kuj ncaj qha cuam tshuam cov khoom lag luam tawm los thiab kev ntseeg tau. Kab lus no muab cov nomCov neeg siv phau ntawv rau NeoDen IN12C reflow qhov cublos muab cov lus qhia ntxaws ntxaws-los ntawm cov hauv paus ntsiab lus mus rau kev siv tswv yim, thiab los ntawm kev teeb tsa mus rau kev ua kom zoo dua - pab koj ua tus tswv reflow soldering thev naus laus zis kom tsis muaj zog thaum txhawb kev tsim khoom thiab cov khoom zoo.
I. Reflow Qhov cub yog dab tsi? Vim li cas nws thiaj tseem ceeb?
Reflow qhov cub yog txheej txheem uas melts solder paste los ntawm cov cua sov, ruaj ntseg txuas qhov chaw -mount cov khoom rau PCBs. Tsis zoo li ib txwm siv phau ntawv soldering, nws ua rau siab - ntom ntom, siab - precision, thiab siab - ntim automated soldering, tsim lub hauv paus ntawm kev tsim SMT niaj hnub.
Kev paub txog kev ua haujlwm kom raug ntawm cov reflow ncu yog qhov tseem ceeb heev - qhov kub tsis zoo ntawm qhov profile tuaj yeem ua rau cov pob qij txha, cov pob qij txha txias, cov khoom tawg, PCB warping, thiab lwm yam teeb meem uas cuam tshuam rau cov khoom ua tau zoo lossis ua rau tag nrho cov khoom seem. Yog li ntawd, kev nkag siab txog nws cov qauv kev ua haujlwm thiab kev ua haujlwm zoo ntawm cov cuab yeej yog cov txuj ci tseem ceeb rau txhua tus kws ua haujlwm SMT.
CovNeoDen IN12C, lub siab -kev ua tau zoo reflow qhov cub tshwj xeeb tsim rau me me- rau- nruab nrab batch ntau lawm thiab R&D, nta 12 qhov kub thiab txias (6 sab sauv thiab 6 qis), ib qho kev sib xyaw fume filtration system, ntse tswj qhov kub thiab txias, thiab 4-channel board nto ntsuas kub. Nws hais meej txog cov kev xav tau ntawm cov pob khoom nyuaj xws li 0201 micro-cov khoom, BGAs, thiab QFNs.
II. Lub hauv paus ntsiab lus tshawb fawb ntawm Reflow Soldering: Plaub-Zone Analysis
Cov txheej txheem rov qab zoo tagnrho suav nrog plaub theem tseem ceeb, txhua qhov cuam tshuam nrog lub cev thiab tshuaj lom neeg sib txawv:
1. Preheating Zone
Muaj nuj nqi: Maj mam nce qhov kub thiab txias kom evaporate cov kuab tshuaj thiab cov pa roj los ntawm cov tshuaj nplaum, tiv thaiv "solder splatter" thiab solder pob.
Cov Ntsiab Lus Tseem Ceeb: Cov cua kub yuav tsum tau tswj ntawm kwv yees li 1℃/ sec (qis dua 160 degree). Kev ceev ntau dhau yuav ua rau PCB warping lossis ceramic capacitor tawg. Tsis txaus ceev yuav ua rau ntxov ntxov solder paste ziab.
2. Lub Chaw Ua Haujlwm
Kev Ua Haujlwm: Ua kom cov dej ntws tawm, tshem tawm cov oxides los ntawm cov ntaub qhwv thiab cov hlau lead, thiab ua kom cov PCB thiab cov khoom kub.
Kev ntsuas kub: Feem ntau 120-150 degree. NeoDen IN12C tswj qhov kub thiab txias nyob rau hauv cheeb tsam no nrog nws qhov siab -cov cua kub sib xws, tiv thaiv "kev nqes hav-zoo li" qhov kub thiab txias profiles.
3. Reflow Zone
Muaj nuj nqi: sai melts solder muab tshuaj txhuam los tsim txhim khu kev qha intermetallic compound (IMC) pob qij txha.
Kev tswj qhov tseem ceeb: Peak kub yuav tsum tshaj qhov solder paste melting point los ntawm 20-40 degree. Piv txwv li, nrog Sn63 / Pb37 paste melting ntawm 183 degree, lub ncov kub yuav tsum tau teem rau 205-220 degree. Lub sijhawm yuav tsum tau tswj ntawm 10-60 vib nas this.
4. Qhov chaw txias
Muaj nuj nqi: ceev ceev solidification ntawm cov kua solder los tsim ntom, lustrous leeg lug.
NeoDen Advantage: Independent circulating cua txias tsim cais tawm sab nraud ib puag ncig cuam tshuam thiab ua kom cov cua txias tsis zoo tom qab kaw, tiv thaiv PCB deformation los ntawm cua txias sai.
III. NeoDen IN12C Kauj Ruam -los ntawm - Kauj Ruam Kev Qhia
Kauj ruam 1: Kev teeb tsa thiab Hwj chim-Up
Lub zog yuav tsum muaj: Ib zaug -theem 220V AC. Siv 4mm² lossis loj dua gauge thaiv thiab xyuas kom muaj kev ruaj ntseg hauv av.
Kev Ntsuam Xyuas Kev Nyab Xeeb: Ua ntej pib, paub meej tias lub khawm nres thaum muaj xwm ceev raug tso tawm thiab tias lub tshuab hluav taws xob thiab RCD ua haujlwm zoo li qub.
Kauj ruam 2: Kho qhov dav dav
Siv cov nyees khawm ntsuab ntawm sab laug (qis) thiab sab xis (dav) sab ntawm lub vaj huam sib luag.
Nias thiab tuav rau 3 vib nas this kom nkag mus rau hom ceev; luv presses tso cai rau kev kho kom zoo.
Rau qhov tsis txaus ntseeg, siv phau ntawv hloov kho ntawm lub nraub qaum ntawm lub cuab yeej rau calibration.
Kauj ruam 3: Teem Core Parameters
Conveyor Ceev: Pom zoo pib qhov chaw yog 250-300 mm / min. Nco tseg: Kev hloov ceev ncaj qha cuam tshuam rau qhov nkhaus qhov kub thiab txias thiab yuav tsum tau rov ua dua -calibration.
Kev Kub Ntxhov Thaj Chaw: Nyem qhov sib thooj cheeb tsam tus nqi txhawm rau nkag ncaj qha rau lub hom phiaj kub (xws li Zone 1: 150 degree, Zone 6: 240℃).
Kev Tswj Ntxuam: Nkag mus rau "Ntxuam Tswj" interface rau tus kheej kho tus kiv cua ceev (default 100%) rau HOT1-HOT6 thiab qhov chaw txias kom ua kom zoo thermal convection.
Kauj ruam 4: Siv cov ntaub ntawv ntse Wizard
NeoDen IN12C nta ib qho ua tau - nyob rau hauv daim ntawv qhia ntse tsim kab ke:
- Xaiv hom muab tshuaj txhuam (piv txwv li, lead-dawb SAC305, leaded Sn63, thiab lwm yam).
- Nkag mus rau cov khoom siv PCB (FR-4, aluminium substrate, thiab lwm yam) thiab thickness.
- Lub kaw lus cia li tsim cov ntaub ntawv ntsuas kub thiab txuag nws ua cov ntaub ntawv ua haujlwm.
- Tswv yim: Cov cuab yeej txhawb nqa 40 cov zaub mov txawv rau kev hloov pauv sai ntawm cov khoom sib txawv.
Kauj Ruam 5: Paub meej tias Npaj Ua Ntej
- Yellow light flashing: Cua sov.
- Lub teeb ntsuab ruaj khov: Tag nrho cov cheeb tsam kub tau mus txog qhov chaw, npaj rau kev tsim khoom.
- Lub teeb liab khov kho / flashing: Cov cuab yeej ua haujlwm tsis zoo lossis kaw, daws teeb meem.
IV. Advanced Techniques: Ua kom tiav cov txiaj ntsig zoo kawg nkaus Soldering
1. Ntsuas qhov tseeb PCB Qhov Kub Kub Profile
Lub vaj huam sib luag qhia cov cua sov phaj kub, feem ntau 20-40℃siab dua qhov tseeb PCB qhov kub thiab txias. Yog li, txheeb xyuas qhov tseeb profile siv lub ntsuas kub:
- Ruaj ntseg ib lub thermocouple ze ntawm PCB ncoo siv high - daim kab xev los yog thermal paste.
- Txuas nws mus rau SENSOR CONNECTOR ntawm lub cuab yeej.
- Nias "Start" nyob rau hauv lub "Tsub Curve" interface kom cia li kaw cov ntaub ntawv raws li lub PCB nkag mus rau hauv qhov cub.
- Sib piv rau qhov pom kev nkhaus uas muab los ntawm cov chaw tsim khoom siv tshuaj txhuam thiab ua kom zoo - kho qhov kub thiab txias zones lossis ceev.
NeoDen IN12C nta 4 synchronouskubntsuas cov chaw nres nkoj, ua kom muaj kev soj ntsuam ib txhij ntawm ntau lub ntsiab lus tseem ceeb rau cov ntaub ntawv ntau dua.
2. Phau ntawv qhia kev daws teeb meem ceev
| Qhov teeb meem | Ua Tau | Kev daws |
| Tsis tiav soldering | Tsis txaus cua sov, ntxoov ntxoo nyhuv | Txo cov kab nrawm / Tsim nyog nce qhov kub thiab txias |
| Ntau dhau solder npas | Ceev ceev preheating, damp solder paste | Tsawg ceev thiab preheat cheeb tsam kub / Siv qhuav PCBs |
| PCB warping | Tshaj sab saum toj - qhov kub sib txawv hauv qab | Txo qhov kub thiab txias sib txawv ntawm thaj chaw saum toj thiab hauv qab / Nce kab nrawm |
| Component Misalignment | Ntau dhau airflow, uneven solder paste | Txo airflow ceev / Tshuaj xyuas solder paste luam ntawv zoo |
Xaus
NeoDen IN12C yog ntau tshaj li qhov cub reflow xwb -nws yog koj tus khub ntse kom ua tiav cov txiaj ntsig siab, kev ua haujlwm siab, thiab kev ntseeg siab hauvSMT ntau lawm. Nrog ± 0.5% kev tswj qhov kub thiab txias, lub zog-txuag qis- lub zog tsim hluav taws xob (tseem siv lub zog ua haujlwm tsuas yog 2.2kW), thiab cov txheej txheem du conveyor optimized rau micro- cov khoom, nws siv zog ua cov kev xav tau los ntawm cov qauv kev pov thawj rau me me - batch ntau lawm.
Ua raws li cov lus qhia no txhawm rau teeb tsa koj thawj qhov ntsuas kub thiab nrawm debugging nrog IN12C tus txawj ntse wizard. Rau kev txhawb nqa lossis tshawb nrhiav SMT cov kev daws teeb meem, hu rau NeoDen pab pawg-peb tau mob siab rau muab cov khoom siv SMT thiab cov kev pabcuam zoo tshaj plaws rau cov tuam txhab hluav taws xob thoob ntiaj teb.