Hluav taws xob soldering hlau fais fab xaiv Electric soldering hlau fais fab loj qhov sib txawv
Nyob rau hauv cov txheej txheem kho hluav taws xob, hluav taws xob soldering hlau yog ib qho khoom siv tsis tau, tab sis ntau tus neeg ua haujlwm saib xyuas uas nyuam qhuav tuaj rau hauv kev sib cuag nrog cov hlau soldering tsis paub dab tsi tus qauv siv los xaiv lub hwj chim ntawm cov hluav taws xob soldering hlau thaum lub sij hawm vuam, thiab lawv feem ntau mus thoob plaws lub ntiaj teb no nrog ib tug soldering hlau. Qhov cuam tshuam ncaj qha tshaj plaws yog tias cov nyhuv vuam tsis zoo vim qhov tsis zoo ntawm kev xaiv lub zog ntawm cov 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 hlau tsis tuaj yeem ua tiav, cov flux tsis tuaj yeem hloov pauv, cov pob qij txha tsis du thiab ruaj khov, thiab nws yooj yim los tsim cov khoom 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 tshuab.
35W yog tsim rau lub hwj chim amplifiers thiab cov cuab yeej qub, thiab 45W rau sab nraud cua sov. Rau kev xaim ntawm cov hloov pauv loj thiab cov kab hauv av ntawm lub hauv paus hlau phaj, siv 50W rau cov cua sov sab hauv thiab 75W rau sab nraud cua sov. 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 20W cov cua sov sab hauv, - - 35W sab hauv cua sov lossis lwm hom cua sov, - 150W sab nraud cua sov hom hluav taws xob soldering hlau, kom nws tuaj yeem ua tau raws li ntau yam kev xav tau vuam. .
Lub solder peb siv feem ntau muab faib ua ob hom: leaded solder thiab lead-free solder, tab sis feem ntau siv yog leaded solder, uas muaj ib tug muaj pes tsawg leeg ntawm 63 feem pua tin, 37 feem pua cov hlau lead, thiab ib tug melting point ntawm 183 degree; Thaum lub sij hawm muaj pes tsawg leeg ntawm cov hlau lead-free solder yog tin 99 feem pua, cov flux yog li ntawm 1 feem pua, thiab lub melting point yog 227 degree. Lead solder muaj qhov zoo ntawm qhov qis melting point, yooj yim soldering, thiab tus nqi qis, tab sis nws tsis yog ib puag ncig tus phooj ywg. Cov hmoov txhuas muaj teeb meem rau tib neeg lub cev, yog li tom qab soldering, koj yuav tsum ntxuav koj txhais tes kom zoo. Thaum lub sij hawm cov txheej txheem soldering, nws yog qhov zoo tshaj plaws los hnav lub npog ntsej muag lossis qhov chaw nrog lub teeb ci kom ntseeg tau tias muaj qee qhov kev ncua deb ntawm lub taub hau thiab vuam. Nrog rau kev txhim kho ntawm tib neeg txoj kev paub txog kev tiv thaiv ib puag ncig, cov hlau tsis muaj hlau lead yog tam sim no siv rau lub tshuab vuam hauv cov chaw tsim khoom. Vim lub siab melting point ntawm cov hlau lead-free solder, nws tsis yooj yim to taub vim li cas nws yog ib qho nyuaj rau yaj lub solder thaum kho cov khoom siv hluav taws xob txawv teb chaws.
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 welding txheej txheem ntawm cov hluav taws xob soldering hlau, nws yog ib tug txheej txheem ntawm tshav kub conduction. Thaum nws hu rau qhov chaw vuam, cov cua sov ntawm lub taub hau ntawm cov hlau txuas tau xa mus rau lub vuam. solder pob qij txha. 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 ntsis ntawm lub soldering hlau, nws kub 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. Nyob rau lub sijhawm no, qhov tshwm sim zoo tshaj plaws yog qhov solder tsis yaj lossis melts tsis tiav. 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 qhov vuam me me, peb tsis tas yuav siv lub tshuab hluav taws xob siab; Yog tias koj siv lub tshuab hluav taws xob siab, koj yuav tsum tau them sai sai rau lub sijhawm soldering, txwv tsis pub cov cua sov ntau dhau yuav yooj yim ua rau lub voj voog uas tam sim no ntws, thiab ua rau lub rooj tsav xwm puas tsuaj, ua rau cov ntawv luam tawm tooj liab poob. Lub zog tshwj xeeb ntawm cov hlau soldering yog qhov tsim nyog, thiab tsis muaj qhov xav tau tshwj xeeb. Kev sib sau ua ke ntawm kev ua haujlwm ntev ntev ntawm cov neeg ua haujlwm saib xyuas yog txoj hauv kev zoo tshaj plaws los xaiv cov hlau uas haum rau koj.
Piav ob qho teeb meem ib zaug ntxiv, cia peb nkag siab lub hauv paus ntsiab lus ntawm weldment kom tob. Ua ntej ntawm tag nrho cov, yog vim li cas siv flux (xws li rosin), qhov tseeb, muab tso rau nws bluntly, lub hom phiaj ntawm kev siv flux yog los tiv thaiv tsis tseeb soldering. Txoj haujlwm ncaj qha tshaj plaws ntawm flux yog ua kom lub vuam yooj yim ntws. Ib lub qhov me me; Tsis tas li ntawd, cov flux kuj muaj cov nyhuv ntawm kev tshem tawm cov oxide txheej ntawm qhov chaw ntawm qhov vuam. Tau kawg, qee qhov fluxes yog corrosive (xws li solder paste) thiab yuav tsum tau siv ceev faj. Txhawm rau txhim kho cov nyhuv vuam thiab ua kom zoo, rosin ntxiv rau cov hlau tiav tiav, uas yooj yim dua rau siv.
