Soldering hlau - yuav ua li cas xaiv solder hlau?
Nyob rau hauv cov txheej txheem ntawm cov khoom siv hluav taws xob, cov xaim hlau yog ib qho ntawm cov khoom siv tseem ceeb, yog li thaum xaiv cov hlau nplaum, koj yuav tsum tau ceev faj thiab ceev faj thiaj li yuav tau txais cov khoom zoo tiag tiag. Ua ntej ntawm tag nrho cov, thaum peb xaiv solder hlau, nws yog qhov zoo tshaj plaws mus ncaj qha mus rau lub khw rau kev yuav khoom. Qhov thib ob yog kom xyuam xim rau nws cov ntim thaum xaiv cov hlau solder. Txawm hais tias kev ntim khoom zoo tsis piav qhia txog teeb meem, ib qho khoom siv hlau uas tsim los ntawm cov chaw tsim khoom tsim qauv yuav raug cim rau ntawm cov khoom ntim. Txhua yam teeb meem zoo kuj tuaj yeem pom nyob rau hauv cov chaw tsim khoom los hloov. Tom qab ntawd, thaum yuav khoom, koj yuav tsum xaiv qhov tsim nyog raws li koj qhov xwm txheej tiag tiag. Ntau tus kwv tij nyiam yuav hauv cov nroog hluav taws xob lossis cov khw muag khoom kho vajtse. Yog vim li cas yog tias cov khoom hauv zos no kuj pheej yig, tab sis koj tau txais yam koj them rau. Thaum lub sij hawm tus txheej txheem, cov tsos ntawm blackened solder pob qij txha, tsis muaj plumpness, thiab lwm yam nyob rau hauv lub solder hlau yog tag nrho vim tsis zoo ntawm solder hlau.
Solder hlau yog tsim los ntawm tin alloy thiab additives. Cov muaj pes tsawg leeg ntawm cov hlau yog muab faib ua tin-lead thiab lead-free additives, uas yog sib npaug rau hauv nruab nrab ntawm cov tin alloy. Cov hom solder hlau yog txawv, thiab cov additives siv kuj txawv. Qee cov khoom siv ntxiv yog siv los txhim kho cov khoom siv hluav taws xob ntawm cov hlau nplaum thaum lub sij hawm vuam, tshem tawm oxidation, txo qhov nro ntawm cov khoom siv welded, thiab tshem tawm cov roj ntawm cov khoom siv welded. , yog li ua kom qhov chaw vuam. Cov yam ntxwv ntawm solder hlau yog tin alloy hlau nrog ib tug ntev thiab txoj kab uas hla, uas yuav siv tau nyob rau hauv kev sib txuas nrog hluav taws xob soldering hlau nyob rau hauv lub vuam ntawm hluav taws xob Cheebtsam.
Muaj ob lub ntsiab ntawm cov hlau nplaum, ib qho yog cov hlau lead thiab lwm yam yog cov hlau tsis muaj hlau lead. Muaj ntau tus qauv hauv ob hom no. Cov xov hlau uas muaj cov qauv sib txawv muaj cov ntsiab lus sib txawv. Yog tias koj xav tau cov xov hlau los ua cov haujlwm vuam tau zoo, koj yuav tsum paub cov ntsiab lus melting ntawm cov xaim hlau kom paub meej cov hlau zoo. vuam nyhuv.
Qhov yooj yim mob rau welding nrog solder hlau yog yaj lub solder hlau, thiab qhov kub thiab txias yuav tsum tau hloov cov khoom lub xeev ntawm solder hlau mus rau hauv lub xeev cov kua yog lub melting point ntawm solder hlau. Lub melting point ntawm solder hlau yog lub cev khoom ntawm ib yam khoom. Cov kev daws teeb meem ntawm solder hlau kuj yuav hloov nrog kev hloov ntawm cov ntsiab lus tin. Thaum qhov kub uas yuav tsum tau rau lub melting ntawm solder hlau tsis ncav cuag nws melting point, lub solder hlau yog hloov los ntawm ib tug khoom lub xeev Thaum nws nyob rau hauv ib tug ua kua lub xeev, lub wettability thiab solderability yuav poob lawv cov nyhuv, uas ua rau tsis ua hauj lwm raws li welding. kev xav tau.
Wb tham txog qhov tshwj xeeb ntawm kev xaiv
ib saib
Kev soj ntsuam pom, zoo tin hlau yuav tsum du, ci, tsis muaj oxidation, blackening tshwm sim! (High-zoo solder hlau muaj ib txheej ntawm zaj duab xis tiv thaiv kom tsis txhob oxidation)
Qhov zoo ntawm cov hlau solder feem ntau zoo dua yog tias cov xim ci, thaum cov hlau nplaum tsaus muaj cov ntsiab lus ntawm cov hlau lead ntau dua thiab feem ntau yuav yaj.
Cov xim ntawm cov hlau zoo zoo yog ci ntsa iab (nrog cov hlau lead), lossis nyiaj dawb (tsis muaj hlau lead) tsis yog dawb.
Ob, kov
Cov hlau nplaum zoo yog xim dawb thiab ci, thiab nws tsis yooj yim rau smear nws ntawm koj txhais tes thaum koj so nrog koj txhais tes, thaum lub tin hlau nrog cov ntsiab lus ntawm cov hlau lead siab yog dub, thiab nws yog ib qho yooj yim kom tau dub tes thaum koj so. nrog koj txhais tes!
Lub ductility ntawm tin yog zoo heev, thiab qhov siab dua qhov purity ntawm tin hlau, qhov tsawg dua nws yuav tawg. Tau kawg, tin hlau nrog cov ntsiab lus siab tin yog mos heev thiab tsis yog cov khoom siv hlau tawv.
3. Kev ntub dej
Wetting kev ua tau zoo ntawm kev txiav txim. Cov hlau tsis muaj hlau lead yuav tsum raug txiav txim raws li seb nws ua tau raws li ROHS tus qauv, cov khoom seem, tsis muaj halogen, thiab tinning ceev. Cov pa luam yeeb, tawg, residue, thiab ci ntsa iab kuj yog cov txheej txheem rau kev txiav txim siab zoo ntawm cov hlau nplaum.
4. Ntim
Them mloog mus rau lub ntim cov tsos ntawm solder hlau. Txawm hais tias lub ntim ntim tsis tuaj yeem sawv cev rau qhov zoo, tag nrho cov hlau nplaum uas tsim los ntawm cov tuam txhab lag luam niaj hnub yuav muaj cov ncauj lus kom ntxaws ntxaws. Yog tias muaj teeb meem zoo, nws tuaj yeem kuaj xyuas zoo dua. Cov ntaub ntawv yooj yim ntawm cov xaim hlau xws li cov ntsiab lus tin lossis qib, cov ntsiab lus txhuas, cov nyiaj flux, cov ntsiab lus melting, thiab ntim qhov hnyav ntawm cov hlau hlau yuav tsum tau qhia hauv daim ntawv lo ntawm cov khoom.
5. Hom
Xaiv cov chaw tsim khoom lag luam yog qhov zoo tshaj plaws los xyuas kom zoo. Ntau tus phooj ywg muaj kev npau taws rau kev yooj yim, thiab feem ntau mus rau hauv lub nroog hluav taws xob ze tshaj plaws lossis cov cuab yeej kho vajtse yuav khoom siv hlau. Raws li tus neeg muag khoom, cov khw muag khoom no yuav tsum tau nyiaj. Nws yog conceivable tias cov nyiaj tau nyob rau hauv tus nqi sib txawv, yog li peb sim xaiv cov chaw tsim khoom ncaj qha thaum yuav khoom.
