Kev taw qhia txog qhov sib txawv ntawm lub zog thiab qhov loj ntawm cov hluav taws xob soldering hlau
Lub tshuab hluav taws xob hluav taws xob yog ib qho cuab yeej tseem ceeb hauv kev kho hluav taws xob, tab sis ntau tus neeg ua haujlwm tu uas nyuam qhuav ntsib cov hlau soldering tsis paub txog tus qauv uas siv los txiav txim siab lub zog ntawm cov hluav taws xob soldering hlau thaum lub sij hawm vuam, thiab lawv. nquag mus ncig lub ntiaj teb nrog ib tug soldering hlau. Cov txiaj ntsig pom tseeb tshaj plaws yog tias cov nyhuv vuam yog subpar vim qhov tsis ua haujlwm ntawm kev xaiv lub zog hlau soldering.
Lub zog ntawm cov hluav taws xob hluav taws xob siv hluav taws xob yog qhov loj heev, nws yooj yim rau hlawv cov khoom (feem ntau, thaum qhov kub thiab txias ntawm diode thiab triode siab tshaj 200 degree, nws yuav hlawv tawm) thiab cov xov hlau luam tawm yuav poob ntawm lub substrate; Lub zog ntawm cov hlau siv yog me me, thiab cov tin soldering tsis tuaj yeem ua kom tiav, cov flux tsis tuaj yeem hloov pauv, cov pob qij txha tsis du thiab ruaj khov, thiab nws yooj yim los tsim cov vuam cuav. Feem ntau, nws yog siv rau vuam integrated circuits, luam Circuit Court boards, CMOS circuits, kho kom zoo nkauj transistors, IC recorders, TV teeb, rau ib tug tib yam Circuit Court thwmsim, feem ntau 20W yog tsim nyog, thiab kho lub tshuab nqus tsev raj, xws li amplifiers thiab qub twj paj nruag. , 35W yog qhov tsim nyog, thiab cov cua sov sab nraud yog 45W. Kev xaim ntawm vuam loj transformer thiab cov kab hauv av ntawm cov hlau puag phaj yog 50W rau cov cua sov sab hauv thiab 75W rau cov cua sov sab nraud. Yog tias koj xav tau cov khoom siv hlau, koj yuav tsum siv lub tshuab hluav taws xob hluav taws xob sab nraud uas muaj zog tshaj 100W. Yog tias muaj kev tso cai, cov neeg nyiam siv xov tooj cua tuaj yeem nruab nrog 2OW sab hauv cua sov hom, 35W sab hauv lossis sab nraud cua sov hom, thiab 150W sab nraud cua sov hom hluav taws xob soldering hlau, kom lawv tuaj yeem ua tau raws li ntau yam kev xav tau vuam.
Leaded solder, uas muaj ib tug muaj pes tsawg leeg ntawm 63 feem pua tin thiab 37 feem pua cov hlau lead thiab ib tug melting point ntawm 183 degree, yog hom solder uas feem ntau siv. Lead-free solder, ntawm qhov tod tes, muaj cov ntsiab lus ntawm 99 feem pua cov tin thiab cov ntsiab lus flux txog li 1 feem pua, thiab nws cov ntsiab lus melting yog 227 degree. Lead solder muaj qhov zoo ntawm qhov tsis tshua muaj melting point, ua yooj yim rau solder, thiab pheej yig, tab sis nws tsis yog ib puag ncig tus phooj ywg thiab cov hlau lead tsis zoo rau tib neeg, yog li koj yuav tsum ua tib zoo ntxuav koj txhais tes tom qab soldering. lub taub hau thiab vuam thaum vuam, nws yog qhov zoo tshaj rau hnav lub npog ntsej muag lossis nyob hauv thaj chaw uas muaj lub teeb ci. Cov hlau lead-dawb solder tau ua haujlwm nyob rau hauv cov tuam txhab rau lub tshuab vuam vim kev paub txog kev tiv thaiv ib puag ncig tau nce. Nws yog ib qho yooj yim to taub tias yog vim li cas cov hlau lead-dawb solder, uas yog qee zaum nyuaj rau yaj thaum kho cov khoom siv hluav taws xob txawv teb chaws, muaj cov ntsiab lus siab melting.
Lub tshuab hluav taws xob hluav taws xob yog cov khoom siv hluav taws xob cua sov, uas tuaj yeem tsim kom muaj qhov kub ntawm li 250 degree tom qab ua kom muaj zog. Thaum lub sij hawm soldering txheej txheem ntawm hluav taws xob soldering hlau, nws yog tiag tiag ib tug txheej txheem ntawm tshav kub conduction. Thaum nws sib cuag nrog lub soldering nto, lub tshav kub ntawm lub taub hau ntawm cov hlau yog hloov mus rau lub solder, thiab lub solder absorbs lub tshav kub, melts thiab ntws, thiab tsim ib tug kaj thiab puag ncig solder sib koom nyob rau hauv qhov kev txiav txim ntawm nto nro. . Nyob rau hauv tus txheej txheem ntawm vuam kub conduction, vim hlau yog zoo conductors ntawm tshav kub, lub tshav kub hloov yog sai dua. Thaum lub sij hawm melting txheej txheem ntawm solder, vim lub tshav kub poob ntawm lub soldering hlau taub, nws kub yuav poob ntau los yog tsawg. Yog tias qhov sib koom ua ke muaj thaj tsam loj, nws yuav tsum tau nqus cua sov ntau kom ua rau lub solder ntawm nws mus txog qhov melting point. Yog hais tias lub taub hau hlau yog me me thiab khaws cov cua sov tsawg dua, qhov kub thiab txias poob sai dua, thiab cov cua sov tsim los ntawm lub zog me me ntawm cov tub ntxhais hlau soldering yuav lig dhau los ua kom cov cua sov poob. Lub sijhawm no, qhov tshwm sim zoo tshaj plaws yog tias lub solder tsis yaj lossis tsis yaj tag. Nyob rau hauv cov ntaub ntawv no, peb yuav tsum tau siv ib tug high-power soldering hlau rau welding. Ntawm qhov tsis sib xws, yog tias cov khoom siv welded me me, peb tsis tas yuav siv lub zog loj soldering hlau; Yog tias peb siv lub zog hluav taws xob siab, peb yuav tsum tau them sai sai rau lub sijhawm vuam, txwv tsis pub cov cua sov ntau dhau yuav yooj yim ua rau lub voj voog uas tam sim no ntws, thiab lub rooj tsav xwm hauv Circuit Court yuav puas. , ua rau cov ntawv luam ntawv tooj liab poob tawm. Lub zog tshwj xeeb ntawm cov hlau soldering yog qhov tsim nyog, thiab tsis muaj qhov xav tau tshwj xeeb. Kev ua haujlwm ntev ntev ntawm kev ua haujlwm ntawm cov neeg ua haujlwm tu yog txoj hauv kev zoo tshaj plaws los xaiv cov hlau uas haum rau koj.
