Muaj peb txoj hauv kev los tuav cov hlau soldering:
① Txoj kev tuav rov qab yog tuav tus tuav ntawm cov hlau nplaum ntawm koj txhais tes nrog koj tsib ntiv tes. Txoj kev no yog tsim rau high-power hluav taws xob soldering hlau rau weld qhov chaw yuav tsum tau welded uas dissipate loj npaum li cas ntawm tshav kub.
② Forward tuav txoj kev Txoj kev no yog tsim rau cov hluav taws xob soldering hlau loj. Txoj kev no kuj yog feem ntau siv rau nkhaus soldering hlau taub hau.
③ Cwj mem tuav txoj kev: Siv tus cwj mem tuav txoj kev tuav cov hlau soldering. Txoj kev no yog tsim rau cov khoom siv hluav taws xob tsawg thiab cov khoom siv vuam uas yuav tsum tau welded nrog cov cua sov me me, xws li vuam luam ntawv Circuit Court boards ntawm cov xov tooj cua thiab TV thiab lawv cov txij nkawm.
Kev npaj ua ntej siv cov hlau soldering
Tig lub hwj chim rau "tin" lub taub hau hlau ua ntej siv. Ua ntej, siv rab riam ncaj ncaj los khoov lub taub hau rau hauv ib qho zoo li qhov xav tau, thiab tom qab ntawd txuas cov khoom siv hluav taws xob. Thaum qhov kub ntawm cov hlau taub hau nce mus rau qhov chaw uas nws tuaj yeem yaj cov tin, dip lub taub hau ntawm cov hlau rosin, tos kom cov rosin haus luam yeeb, thiab tom qab ntawd siv ib txheej ntawm nws. Solder, rov ua qhov no ob mus rau peb zaug, kom txog rau thaum cov hniav saum npoo ntawm cov hlau taub hau yog tag nrho nrog ib txheej ntawm tin thiab nws yog npaj txhij rau siv.
Lub tshuab hluav taws xob hluav taws xob yuav tsum tsis txhob siv lub sijhawm ntev yam tsis tau siv, vim qhov no yuav yooj yim ua rau cov tub ntxhais hlau soldering kom nrawm oxidation thiab hlawv tawm, ua rau nws lub neej luv.
Qee lub sij hawm nws tseem yuav ua rau lub taub hau ntawm lub taub hau kom oxidize vim cua sov mus ntev, thiab txawm tias "hlawv" thiab tsis "siv tin".
Kev ceev faj rau kev siv hlau soldering
① Xaiv cov khoom sib txawv ntawm cov hlau vuam kom tsim nyog raws li cov khoom siv vuam.
② Tsis txhob ntaus lub taub hau ntawm cov hlau arbitrarily thaum siv kom tsis txhob muaj kev puas tsuaj. Cov phab ntsa tuab ntawm cov yeeb nkab steel ntawm cov cua sov sab hauv cov hlau txuas txuas tsuas yog 0.2 hli, yog li nws tsis tuaj yeem clamped nrog pliers kom tsis txhob muaj kev puas tsuaj. Nws yuav tsum tau khaws cia tsis tu ncua thaum siv los xyuas kom meej tias cov hlau taub hau yog npog nrog ib txheej nyias ntawm tin.
solder
Solder yog cov hlau fusible uas txuas cov khoom sib txuas ua rau cov ntsiab lus sib txuas ntawm lub rooj tsav xwm luam tawm. Tin (Sn) yog ib qho mos mos, malleable silver-dawb hlau nrog lub melting point ntawm 232 degree. Nws muaj cov tshuaj lom neeg ruaj khov ntawm chav sov, tsis yooj yim oxidized, tsis plam nws cov xim hlau, thiab muaj zog tiv thaiv atmospheric corrosion. Lead (Pb) yog ib qho mos, lub teeb xiav-dawb hlau nrog lub melting point ntawm 327 degree. High-purity lead muaj zog tiv thaiv atmospheric corrosion thiab zoo tshuaj stability, tab sis nws yog teeb meem rau tib neeg lub cev. Ntxiv ib qho kev faib ua feem ntawm cov hlau lead thiab ib qho me me ntawm lwm cov hlau rau tin tuaj yeem tsim cov khoom uas tsis tshua muaj melting point, zoo fluidity, muaj zog adhesion rau cov khoom thiab cov xov hlau, siab mechanical zog, zoo conductivity, tsis yooj yim rau oxidize, zoo corrosion kuj, thiab bright solder pob qij txha. Zoo nkauj solder, feem ntau hu ua solder.
Solder tuaj yeem muab faib ua 15 hom raws li cov ntsiab lus tin, thiab muab faib ua peb qib: S, A, thiab B raws li cov ntsiab lus tin thiab cov tshuaj muaj pes tsawg leeg ntawm impurities. Hlau soldering yog feem ntau siv nyob rau hauv phau ntawv soldering.
