Dab tsi yog qhov sib txawv ntawm cov hlau soldering muaj?
Muaj ob hom solder siv nyob rau hauv hluav taws xob soldering hlau, ib tug yog solder hlau thiab lwm yam yog solder bar. Ntawm no peb qhia cov xov hlau siv hauv phau ntawv soldering ntawm cov khoom siv hluav taws xob rau koj siv.
Solder hlau yog siv los ua cov hlau muab tub lim ntxiv rau saum npoo thiab qhov khoob ntawm cov khoom siv hluav taws xob los kho cov khoom siv hluav taws xob. Thaum yuav cov hlau nplaum, nco ntsoov xaiv cov khoom zoo.
Feem ntau siv hlau diameters ntawm cov hlau nplaum feem ntau suav nrog {{0}}.6mm, 0.8mm, 1.0mm, 1.2mm, thiab lwm yam. FLUX qhia cov ntsiab lus rosin ntawm solder hlau, uas feem ntau suav nrog 2.0%, 2.2%, 2.5%, thiab lwm yam.
Daim ntawv lo ntawm cov hlau lead hlau: n sawv cev rau cov ntsiab lus tin, thiab Pb sawv cev rau cov ntsiab lus txhuas. Kev lag luam feem ntau yog hais txog cov ntsiab lus tin li "degree", thiab cov degree yog hais txog tus nqi ntawm cov tin uas muaj nyob rau hauv cov hlau lead.
Piv txwv li, 63 degrees txhais tau hais tias cov ntsiab lus tin yog 63% thiab cov ntsiab lus txhuas yog 37%; 45 degrees txhais tau hais tias cov ntsiab lus tin yog 45% thiab cov ntsiab lus txhuas yog 55%.
Puas yog soldering hlau lom?
Qhov no nyob ntawm seb cov hlau soldering puas muaj cov hlau lead hlau los yog tsis muaj hlau lead, thiab cov ntshav txhuas yuav tsum tau kuaj xyuas tsis tu ncua. Yog tias nws tsis tshaj tus qauv, yuav tsis muaj teeb meem.
Kev tiv thaiv thiab cov khoom siv raw khoom yog ua raws li cov qauv hauv tebchaws. Soldering yuav tsis ua rau muaj kev puas tsuaj loj, thiab cov khoom tsis muaj hlau lead yog siv hauv paus.
Lead yog ib qho tshuaj lom. Kev nqus dej ntau dhau los ntawm tib neeg lub cev tuaj yeem ua rau muaj kab mob lead lom. Kev noj cov koob tshuaj tsawg tsawg tuaj yeem cuam tshuam rau tib neeg kev txawj ntse, lub paj hlwb thiab lub cev xeeb tub.
Lub alloy ntawm tin thiab lead yog feem ntau siv solder. Nws muaj cov khoom siv hluav taws xob zoo thiab cov ntsiab lus melting tsawg. Nws tau siv rau hauv cov txheej txheem vuam tau ntev. Nws cov tshuaj lom neeg feem ntau yog los ntawm cov hlau lead, thiab cov pa taws ua los ntawm cov hlau lead tuaj yeem yooj yim ua rau muaj tshuaj lom.
Cov hlau lead tuaj yeem tsim cov khoom siv lead ua, uas yog cais raws li cov khoom siv phom sij. Hauv tib neeg lub cev, cov hlau lead tuaj yeem cuam tshuam rau hauv nruab nrab lub paj hlwb thiab lub raum.
Cov ntshav txhuas ntau dua 10 ug / dl yuav ua rau muaj kev cuam tshuam biochemical. Kev raug mob mus ntev yuav ua rau muaj tshuaj lom tshuaj lom neeg hauv tsev kho mob yog tias cov ntshav cov hmoov lead ntau tshaj 60 ~ 70 ug / dl.
Cov uas muaj cov hmoov txhuas yog cov tshuaj lom, thiab yuav muaj cov pa luam yeeb thaum soldering, uas muaj cov khoom ua rau lub cev tsis zoo.
Thaum ua haujlwm soldering, xyuam xim rau kev tiv thaiv tus kheej kom txo tau qhov kev puas tsuaj ntawm cov hlau lead lom rau tib neeg lub cev. Yog tias koj siv cov hlau tsis muaj hlau lead, nws yuav muaj kev nyab xeeb ntau dua li cov hlau uas muaj cov hlau lead.
