Tin hlauyog tsim los ntawm tin alloy thiab flux. Nws yog ib qho khoom siv tseem ceeb rau kev siv phau ntawv soldering. Nws yog dav siv hauv PCBA ua cov nroj tsuag. Tin hlau kuj tau muab faib ua cov hlau tin hlau thiab cov hlau tsis muaj hlau lead. Kev tsim cov txheej txheem ntawm cov hlau tin ib txwm muaj raws li hauv qab no: alloy fusion, casting, extrusion, hlau kos duab, winding thiab ntim. Hauv cov txheej txheem tsim khoom no, txhua qhov txuas tseem ceeb dua.
Tin hlau yog tsuas yog siv rau vuam Cheebtsam hauv phau ntawv vuam, uas tuaj yeem tshem tawm cov oxidation ntawm cov khoom siv welded thiab nthuav lub luag haujlwm ntawm qhov chaw vuam. Nws feem ntau yog siv nrog hluav taws xob hlau hauv vuam. Soldering hlau tsis muaj additives yog tsis muaj peev xwm mus nqa tawm lub vuam ntawm hluav taws xob Cheebtsam, vim hais tias nws tsis muaj wettability, expansion. Lub vuam yuav tsim txaws, solder kev sib koom ua ke tsis zoo, lub sij hawm ntev los txhim kho qhov kev ua tau zoo ntawm cov khoom siv ntxiv cuam tshuam rau kev ua haujlwm ntawm cov hlau welding.
Thaum siv tin hlau, yuav tsum tau them nyiaj mloog mus rau kev siv tin hlau. Nyob rau hauv phau ntawv welding, nws yog feem ntau yuav tsum tau muab tin hlau rau lub taub hau soldering hlau. Qee lub sij hawm, nws yuav tsim qhov tshwm sim ntawm frying tin, uas tej zaum yuav tshwm sim los ntawm damp tin hlau los yog tin hlau ua. Yog li nyob rau hauv cov txheej txheem ntawm tin hlau cia kom ntxiv dag zog rau kev tiv thaiv kev ntsuas, tswj kev cia lossis kev ua haujlwm kub thiab av noo, tiv thaiv tin hlau damp.
Nyob rau hauv lub vuam, tin hlau yuav ntab ib tug pa luam yeeb, yuav muaj ib tug tej yam tsis hnov tsw, tib neeg lub cev rau nqus tau pa, yuav muaj ib co kev puas tsuaj rau lub cev, yog li ntawd nyob rau hauv lub vuam, kom tswj tau qhov cua, los yog muab tso rau ib sab ntawm ib tug kiv cua.
Niaj hnub no, tin tau dhau los ua cov peev txheej tsawg zuj zus. Thaum siv cov tin hlau, nws yog ib qho tsim nyog yuav tsum tau rov ua dua tin hlau los txhim kho kev siv cov tin, thiab rov ua dua cov tin hlau kuj tuaj yeem txuag nqi. Tin hlau yog ib qho tseem ceeb heev thiab yooj yim rau kev siv cov khoom siv vuam thaum phau ntawv vuam, nyob rau hauv cov txheej txheem ntawm kev siv tin hlau, xyuam xim rau ntxiv dag zog rau kev cia ntawm tin hlau, thiaj li ua si ib tug zoo kev kawm ntawm tin hlau, ua tau zoo welding nyhuv.
Post lub sij hawm: Aug-03-2022