Kev paub txog kev siv hluav taws xob soldering hlau thiab hluav taws xob soldering hlau cov qauv kev ua haujlwm
Nkag siab txog hluav taws xob soldering hlau, uas yog cov cuab yeej siv feem ntau hauv vuam.
1. Muaj nuj nqi: Nws hloov hluav taws xob hluav taws xob rau hauv thermal zog kom sov thiab vuam cov ntsiab lus vuam. Kev vam meej ntawm vuam feem ntau nyob ntawm seb tus neeg ua haujlwm zoo npaum li cas. Feem ntau hais lus, qhov siab dua lub zog thiab cua sov ntawm lub tshuab hluav taws xob hluav taws xob, qhov kub ntawm lub taub hau ntawm cov hlau soldering ntau dua.
2. Lub zog siv hluav taws xob feem ntau yog 20W; 25 W; 30W; 40W; 60 W; 100 W
3. Daim ntawv cua sov ntawm hluav taws xob soldering hlau: hom cua sov sab hauv; Sab nraud cua sov.
4. Common soldering hlau accessories: soldering hlau tuav, tin absorber, tweezers, electrostatic bracelet, kab pheeb ces kaum pliers, absorbent sponge.
Kev ceev faj rau kev siv hluav taws xob soldering hlau
1. Kev npaj ua haujlwm ua ntej siv cov hlau soldering.
Ua ntej siv hluav taws xob soldering hlau, tin yuav tsum tau siv. Txoj kev tshwj xeeb yog kom sov cov hlau soldering, thiab thaum nws tuaj yeem yaj lub solder, sib npaug ntawm cov hlau taub hau nrog lub tin hlau, kom lub taub hau hlau tuaj yeem noj ib txheej ntawm cov tin sib npaug. (Ceeb Toom: Kev haus luam yeeb los ntawm cov hlau uas tau muag tshiab thaum lub sij hawm cua sov yog ib qho tshuaj tiv thaiv ib txwm muaj)
2. Ua haujlwm kom raug.
Nws tuaj yeem ua kom lub cev thiab lub hlwb noj qab haus huv ntawm tus neeg teb xov tooj thiab txo qis kev raug mob ntawm kev ua haujlwm. Txhawm rau txo qhov kev puas tsuaj ntawm cov tshuaj emissions los ntawm vuam flux thaum lub sij hawm cua sov rau tib neeg thiab txo qhov nqus ntawm cov pa phem, qhov kev ncua deb ntawm soldering hlau mus rau lub qhov ntswg yuav tsum tsis txhob tsawg tshaj li 20cm, thiab 30cm yog feem ntau pom zoo.
Ua ntej siv lub tshuab hluav taws xob hluav taws xob, xyuas seb qhov hluav taws xob siv puas yog qhov nominal voltage ntawm cov hlau soldering.
4. Lub soldering hlau yuav tsum yog av thiab zoo grounded.
5. Thaum siv cov hlau soldering, hnav ib lub dab teg electrostatic thiab xyuas kom meej tias nws yog av zoo. (Ceeb Toom: Cov xaim hauv av zoo li qub thiab cov hlau nplaum hlau yuav tsum tau sib cais)
6. Tom qab lub tshuab hluav taws xob siv hluav taws xob tau siv rau, nws yuav tsum tsis txhob muab khob, disassembled, lossis ntsia nrog cov khoom siv hluav taws xob.
7. Cov hlau nplaum hluav taws xob yuav tsum tau ua kom qhuav thiab yuav tsum tsis txhob siv rau hauv qhov chaw ntub dej ntau dhau los yog los nag.
Thaum disassembled lub taub hau hlau soldering, tua lub hwj chim.
9. Tom qab kaw lub hwj chim, siv cov cua sov uas tseem tshuav los siv ib txheej ntawm cov tin ntawm lub taub hau hlau los tiv thaiv nws.
10. Thaum muaj txheej txheej dub oxide ntawm lub taub hau hlau, cov oxide tuaj yeem muab tshem tawm ntawm cov dej nqus dej thiab tinned tam sim ntawd. (Tsis tuaj yeem khawb nrog rab riam)
11. Cov sponges yog siv los sau cov tin slag, tin hlaws, thiab oxides, thiab nws yog ib qho tsim nyog los tuav lawv nrog koj txhais tes kom txaus kom tsis txhob tso dej.
12. Cov hluav taws xob soldering hlau yuav tsum tsis txhob siv rau lub sijhawm ntev yam tsis siv, vim qhov no tuaj yeem yooj yim nrawm rau oxidation ntawm cov tub ntxhais hlau soldering thiab hlawv nws tawm, ua kom nws lub neej luv. Nyob rau tib lub sijhawm, nws tseem tuaj yeem ua rau lub taub hau hlau rau oxidize vim cua sov ntev, thiab txawm tias "hlawv" thiab tsis "noj" tin lawm.
solder
Solder yog cov hlau fusible uas tuaj yeem txuas cov khoom sib txuas ua rau cov ntsiab lus sib txuas ntawm cov ntawv luam tawm Circuit Board. Tin (Sn) yog ib tug mos mos thiab ductile silver dawb hlau nrog ib tug melting point ntawm 232 degree. Nws muaj cov tshuaj lom neeg ruaj khov ntawm chav tsev kub, tsis yooj yim oxidized, tsis poob nws cov xim hlau, thiab muaj zog tiv thaiv atmospheric corrosion. Lead (Pb) yog ib lub teeb ci xiav dawb hlau uas muaj qhov 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 noj qab haus huv. Ntxiv ib qho kev faib ua feem ntawm cov hlau lead thiab ib qho me me ntawm lwm cov hlau rau tin tuaj yeem ua rau solder nrog qis melting point, zoo fluidity, muaj zog adhesion rau cov khoom thiab cov xov hlau, siab mechanical zog, zoo conductivity, tsis tshua muaj oxidation kuj, zoo corrosion kuj, thiab kaj. thiab zoo nkauj solder pob qij txha. Nws yog feem ntau hu ua solder. Solder tuaj yeem muab faib ua 15 hom raws li nws cov ntsiab lus tin thiab impurities
Cov tshuaj muaj pes tsawg leeg yog muab faib ua peb theem: S, A, thiab B. Kev tuav vuam feem ntau siv hlau solder. (Tam sim no tseem muaj kev siv ib puag ncig tus phooj ywg tsis muaj hlau lead-dawb solder tam sim no)
flux
Fluxes feem ntau yuav muab faib ua inorganic fluxes, organic fluxes, thiab resin fluxes, uas muaj peev xwm yaj thiab tshem tawm oxides ntawm cov hlau nto, thiab qhwv thaum vuam cua sov.
Npog lub npoo ntawm cov hlau kom cais tawm ntawm huab cua thiab tiv thaiv oxidation ntawm cov hlau thaum cua sov; Nws tuaj yeem txo qhov nro ntawm melted solder, uas yog qhov zoo rau kev ntub dej ntawm cov solder. (Rosin, natural resin flux)
