Dab tsi ntawm solder yog siv nrog soldering hlau?
Solder hlau yog ntxiv rau saum npoo thiab qhov khoob ntawm cov khoom siv hluav taws xob raws li cov hlau muab tub lim 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 solder yog {{0}}.6mm, 0.8mm, 1.0mm, 1.2mm thiab hais txog. FLUX qhia txog cov ntsiab lus rosin ntawm cov hlau nplaum, feem ntau suav nrog 2.0 feem pua, 2.2 feem pua, 2.5 feem pua thiab lwm yam.
Daim ntawv lo ntawm leaded solder hlau: n txhais tau tias cov ntsiab lus tin, Pb txhais tau tias cov ntsiab lus txhuas, cov ntsiab lus tin feem ntau hu ua "degree" hauv kev lag luam, thiab degree yog hais txog tus nqi ntawm cov tin muaj nyob rau hauv leaded solder hlau.
Piv txwv li, 63 degrees txhais tau hais tias cov ntsiab lus tin yog 63 feem pua thiab cov ntsiab lus txhuas yog 37 feem pua; 45 degrees txhais tau hais tias cov ntsiab lus tin yog 45 feem pua thiab cov ntsiab lus txhuas yog 55 feem pua.
Puas yog soldering hlau lom?
Nws nyob ntawm seb cov hlau soldering hlau yog cov hlau lead lossis cov hlau lead tsis muaj hlau lead, thiab cov ntshav cov hmoov txhuas raug kuaj xyuas tsis tu ncua, thiab yuav tsis muaj teeb meem yog tias nws tsis dhau tus qauv.
Raws li lub teb chaws tus qauv rau kev tiv thaiv thiab cov khoom siv raw khoom, solder yuav tsis ua rau muaj kev puas tsuaj loj, thiab cov khoom siv tsis muaj hlau lead.
Lead yog ib qho tshuaj lom. Kev nqus dej ntau dhau los ntawm tib neeg lub cev yuav ua rau muaj tshuaj lom neeg txhuas. 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.
Cov alloy ntawm tin thiab txhuas feem ntau yog siv los ua cov hlau, uas muaj cov khoom siv hluav taws xob zoo ntawm cov hlau thiab cov ntsiab lus melting tsawg, thiab tau siv rau hauv cov txheej txheem vuam tau ntev. Nws toxicity feem ntau yog los ntawm cov hlau lead, thiab cov hlau lead fume uas tsim los ntawm soldering tau yooj yim ua rau cov hmoov txhuas lom.
Cov hlau lead tuaj yeem tsim cov khoom siv lead ua, uas tau muab cais ua cov khoom phom sij. Hauv tib neeg lub cev, cov hlau lead tuaj yeem cuam tshuam rau hauv nruab nrab lub paj hlwb thiab lub raum.
Yog tias cov ntshav lead concentration ntau dua 10 ug / dl, cov teebmeem biochemical rhiab heev yuav tshwm sim. Yog hais tias cov ntshav lead concentration ntau tshaj 60-70 ug/dl tom qab raug mus sij hawm ntev, nws yuav ua rau cov tshuaj lead lom lom.
Cov hmoov txhuas yog cov tshuaj lom, thiab yuav muaj cov pa luam yeeb thaum soldering, uas muaj cov khoom uas tsim kev puas tsuaj rau lub cev.
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.
