Puas yog koj qhov kev tsim khoom tau ntsib lub bottleneck ntawm pa cua kub reflow? Cov teeb meem xws li cua sov tsis sib haum ua rau tombstoning lossis txias solder pob qij txha, oxidative discoloration ntawm rhiab Cheebtsam, thiab nquag qhov cub txij nkawm vim flux paug yog qhov nyuaj heev JHLS PFPE Perfluoropolyether yog engineered los daws. Qhov siab - cov kua dej ua tau zoo no ua rau cov txheej txheem vapor theem reflow zoo dua, muab qhov tseeb ntug hauv kev sib sau ua ke tom ntej - tiam hluav taws xob.
01 The vapor phase reflow soldering Process: Precision Redefined by JHLS PFPE
Vapor Phase Reflow Soldering sawv ntsug sib nrug los ntawm cov txheej txheem ib txwm siv los ntawm kev siv theem - hloov txoj cai ntawm cov kua dej tshwj xeeb. Nov yog qhov kev tawg ntawm nws cov txheej txheem meej siv cov kua dej zoo li JHLS PFFE:
Theem 1: Tsim kom muaj Saturated Vapor Zone
Cov txheej txheem pib thaum lub inert, thermally ruaj khov JHLS PFPE kua nyob rau hauv lub cua sov sump yog coj mus rau nws meej boiling point (piv txwv li, 230℃). Nws tsim ib qho zoo sib xws, oxygen- huab cua dawb ntawm cov vapor uas nyob hauv lub chamber.
Theem 2: Condensation thiab Uniform Thaum tshav kub kub hloov
Thaum lub rooj sib tham PCB txias nkag mus rau qhov chaw vapor no, cov vapor condenses tam sim ntawd thaum sib cuag nrog txhua qhov chaw -cov khoom, cov tshuaj txhuam hniav, thiab lub rooj tsavxwm. Cov theem no hloov ntawm vapor mus rau cov kua tso tawm ib qho tseem ceeb ntawm latent tshav kub, uas yog kis ncaj qha thiab uniformly rau lub rooj sib txoos.
Theem 3: Peak Temperature Control thiab Cooling
Lub rooj sib txoos tsis tuaj yeem tshaj cov kua dej kub npau npau, kom tswj tau qhov kub thiab txias thiab tshem tawm qhov kub. Tom qab soldering, lub condensed PFPE drains huv si rov qab mus rau lub sump, thiab lub rooj sib txoos txias nyob rau hauv ib tug tswj, residue -dawb ib puag ncig.
02 Qhov Zoo Tshaj Plaws Tsis Zoo: vapor theem reflow vs. Cua Kub Reflow
Kev xaiv ntawm reflow thev naus laus zis yog qhov tseem ceeb rau kev tawm los thiab kev ntseeg siab. Cov lus hauv qab no sib piv cov ntsiab lus sib txawv ntawm PFPE-enabled Vapor Phase Reflow thiab pa cua kub Reflow.
| Sib piv Dimension | Vapor Phase Reflow nrog PFPE | Pa cua kub Reflow |
|---|---|---|
| Cua sov Mechanism | Latent cua sov hloov ntawm vapor condensation. | Convective thiab radiative tshav kub hloov ntawm huab cua turbulent. |
| Temperature Uniformity | Tshwj xeeb. Tswj los ntawm cov kua dej boiling point; qhov kub thiab txias qhov sib txawv (<2°C). | Hloov pauv. Yooj yim rau shadowing, tivthaiv xim / loj, tsim hotspots thiab txias aav. |
| Txheej txheem Atmosphere | Zoo kawg nkaus inert. Saturated vapor daim pam tshem tawm cov pa oxygen tag, tiv thaiv oxidation. | Ib nrab inert zoo tshaj plaws. Yuav tsum tau kim heev, siab -purity nitrogen txaus thiab sophisticated sealing kom txo tau oxygen. |
| Solder Joint Zoo | Tsis tu ncua superior. Bright, txhim khu kev qha pob qij txha nrog tsawg voiding thiab zoo heev intermetallic tsim. | Kev pheej hmoo tsis sib haum. Cov pob qij txha ua tau; zoo heev nyob ntawm qhov cub profileing thiab huab cua tswj. |
| Thermal Stress ntawm Cheebtsam | Tsawg kawg. Maj mam, cov cua kub tsis sib xws tiv thaiv thermal shock rau cov khoom rhiab zoo li MEMS lossis BGAs loj. | Qhov tseem ceeb. Cov thermal gradients thiab muaj peev xwm overheating tuaj yeem ua rau cov khoom muag. |
| Kev Ua Haujlwm & Kev Kho Tus Nqi | Cov nqi hluav taws xob ntau dua los ntawm kev siv xoom nitrogen, kev siv hluav taws xob tsawg, thiab txo qis kev tu lub sijhawm. | Tus nqi pib qis dua los ntawm kev ua haujlwm siab -purity nitrogen noj, kev siv zog ntau dua, thiab kev tu ntau zaus rau cov khoom seem. |
03 Cov Khoom Ntug: Vim Li Cas JHLS PFPE Yog Qhov Tseem Ceeb
PFPE kua JHLS series tsis yog cov kua dej tsis zoo xwb; nws yog cov khoom siv hauv paus uas ua rau cov txheej txheem zoo tshaj no ua tau. Nws cov khoom tsim kho vaj tse muab cov kev pabcuam dav dav:
Unrivaled Chemical thiab Thermal Stability:JHLS PFPE tseem inert thiab ruaj khov ntawm qhov kub thiab txias tsis tu ncua. Nws tsis decompose los tsim cov kua qaub los yog sludge, ua kom lub neej ntev ntawm cov kua dej thiab tiv thaiv cov khoom rhiab thiab cov pob qij txha los ntawm cov tshuaj tua kab mob.
Engineered Boiling Point rau Precision:Muaj nyob rau hauv cov qib tshwj xeeb, JHLS PFPE tso cai rau cov tuam txhab xaiv qhov tseeb, ruaj khov taw tes kom haum rau lawv cov hlau lead-dawb solder profile, lav cov txheej txheem rov ua dua.
Superior Yield thiab Reliability:Los ntawm kev ua kom muaj kev sib haum xeeb zoo tshaj plaws thiab cov pa oxygen- ib puag ncig pub dawb, JHLS PFPE ncaj qha tackles lub hauv paus ua rau muaj kev cuam tshuam ntawm kev sib txuas ua ke -bridging, tombstoning, thiab txias pob qij txha- tsav tsheb ua ntej - dhau tawm los thiab ntev - cov khoom lag luam ntseeg siab rau qhov siab tshiab.
Tag Nrho Tus Nqi Ntawm Cov Tswv Cuab Tau Zoo:Qhov txo qis hauv cov pa roj nitrogen, hluav taws xob hluav taws xob, kev tsim khoom poob qis rau kev tu, thiab kev sib koom ua haujlwm sib koom ua ke muab ROI tsim nyog, ua rau nws yog qhov kev xaiv zoo rau kev tsim khoom muaj txiaj ntsig siab.
04 Technical Data of pFPE JHLS series
| 主要性能 MAIN PROPERTIES |
单位 UNIT |
JHLS-200 |
JHLS-215 |
JHLS-230 |
JHS-240 |
JWS-260 |
沸点 IB TUG NEEG |
degree |
200 |
215 |
230 |
240 |
260 |
密度 DENSITY |
g/cm3 |
1.79 |
1.8 |
1.82 |
1.82 |
1.83 |
动力学粘度 KINETIC VICSOSITY |
cSt |
2.5 |
3.7 |
4.3 |
5.3 |
7.1 |
蒸汽压 VAPOR siab |
pa |
22 |
11 |
3.5 |
1 |
1 |
比热 TSEEM CEEB |
J/kg. degree |
966 |
966 |
966 |
966 |
966 |
热导率 KEV KHO MOB |
W/m. degree |
0.065 |
0.065 |
0.065 |
0.065 |
0.065 |
热膨胀系数 COEFFICIENT NTAWM THERMALEXPANSION |
3 cm3. degree |
0.0011 |
0.0011 |
0.0011 |
0.0011 |
0.0011 |
表面张力 NTAUB NTAWV |
loj / cm |
19 |
20 |
20 |
20 |
20 |
Today, as electronics push the limits of miniaturization and power density, the margin for error in assembly has vanished. Hauv cov chaw ua lag luam tsheb radar, aerospace avionics kab, thiab cov cuab yeej siv kho mob siab heev, cov txheej txheem vapor theem tau qhib los ntawm cov kua dej xws li JHLS PFPE yog tus qauv tsis hais rau lub hom phiaj- cov rooj sib txoos tseem ceeb. Nws ua kom ntseeg tau tias txhua qhov kev sib txuas ntawm lub rooj tsavxwm yog tsim nyob rau hauv zoo meej, rov ua tau zoo.
Peb qhov chaw nyob
Room 1102, Unit C, Xinjing Center, No.25 Jiahe Road, Siming District, Xiamen, Fujian, Suav teb
Xov tooj
+86-592-5803997
E -mail
susan@xmjuda.com
