6 kev xaiv ntawm hluav taws xob soldering hlau
1 Classification ntawm hluav taws xob soldering hlau
Hluav taws xob soldering hlau tuaj yeem muab faib ua hom induction thiab hom cua sov ncaj qha. Txij li thaum lub induction hom soldering hlau taub hau muaj ib tug induced nqi, nws yog tsis haum rau soldering hluav taws xob Cheebtsam uas rhiab heev rau induced nqi. Muaj ob hom cua sov sab nraud, hom cua sov sab hauv yog me me, ceev hauv qhov kub thiab txias, siab thermal efficiency thiab yooj yim rau siv. Qhov tshwm sim ntawm cov hlau tawg, lub neej ntawm cov khoom cua sov yog nyob ntawm ob peb teev, ntau tshaj kaum teev, mus rau kaum ob teev. Lub tshuab cua sov yuav tsum tau hloov ntau zaus, thiab nws tsis yooj yim los kho qhov kub thiab txias, yog li nws tsis haum rau cov tub ntxhais kawm kev xyaum ua haujlwm; Ua haujlwm qeeb, tsis tshua muaj thermal efficiency, tab sis cov khoom cua sov tsis yooj yim rau kev puas tsuaj thiab yooj yim los kho qhov kub thiab txias. Cov cua sov sab nraud hom hluav taws xob soldering hlau tau muab faib ua hom zoo tib yam thiab hom kub tsis tu ncua. Kev tuav soldering ntawm cov kab sib dhos; zoo tib yam sab nraud cua sov hluav taws xob soldering hlau muaj ib tug yooj yim kub hloov txoj kev, yog economical thiab ruaj, thiab yog haum rau cov tub ntxhais kawm kev kawm hluav taws xob.
2 Xaiv lub zog ntawm cov hlau soldering raws li cov khoom siv vuam
Lub zog hluav taws xob sab nraud hluav taws xob hluav taws xob soldering hlau muaj ntau yam tshwj xeeb xws li 20, 25, 30, 45, 50, 60, 75, ..., 500 W, thiab lwm yam. Lub zog loj dua, qhov loj dua txoj kab uas hla ntawm lub taub hau soldering hlau. , thiab qhov ntau dua cov cua sov tsim ib lub sij hawm ntau dua, qhov ruaj khov thiab siab dua qhov kub ntawm cov hlau taub hau.
Thaum soldering, koj muaj peev xwm xaiv ib tug soldering hlau nrog cov coj wattage raws li qhov luaj li cas ntawm lub vuam thiab lub solder sib koom. Qhov loj dua qhov vuam thiab qhov sib koom ua ke, qhov loj dua lub zog ntawm cov hlau. Cov khoom siv vuam ntawm cov tub ntxhais kawm kev cob qhia hluav taws xob feem ntau yog nyob rau ntawm cov ntawv luam tawm Rau cov khoom siv hluav taws xob siv hluav taws xob, cov phau ntawv qhia dav dav pom zoo kom siv 25 lossis 30 W hluav taws xob soldering hlau, tab sis thaum lub sij hawm kev cob qhia, nws tau pom tias thaum lub caij ntuj no qhov kub thiab txias, hluav taws xob soldering irons hauv qab 30 W tsis tuaj yeem siv rau kev sib txuas ib txwm vim muaj cua sov tsis txaus. Xav txog tias feem ntau ntawm kev cob qhia hauv hluav taws xob yog kev xyaum vuam ntawm cov ntawv luam tawm zoo tib yam. Rau kev sib txuas cov khoom siv hluav taws xob me me nrog cov pob qij txha loj, peb tau siv 45 W lossis 50 W sab nraud rhuab soldering hlau rau ntau xyoo nrog cov txiaj ntsig zoo.
Thaum soldering transistors thiab cov khoom siv hluav taws xob sib xyaw ua ke, thaum qhov kub thiab txias ntawm cov hlau soldering tshaj 200 degree rau lub sijhawm ntev [2], nws qhov kev ua tau zoo yuav ua rau tsis zoo lossis puas. Thaum siv cov hlau me me los yog lub zog loj heev, Lub sijhawm vuam yuav ntev dua, uas tuaj yeem ua rau kub dhau thiab ua rau cov khoom siv hluav taws xob puas.
3 Xaiv cov duab ntawm cov hlau taub hau raws li qhov loj thiab cov duab ntawm cov khoom sib txuas
Soldering hlau cov lus qhia nrog cov duab sib txawv yog tsim rau vuam cov pob qij txha ntawm cov duab sib txawv thiab ntau thiab tsawg. Hauv kev siv cov tswv yim, koj tuaj yeem xaiv lub taub hau hlau raws li koj tus kheej tus cwj pwm thiab kev paub dhau los, lossis koj tuaj yeem ua ntej teeb tsa ob peb lub tswv yim hlau nrog cov duab sib txawv, thiab xaiv cov lus qhia sib txawv ntawm cov hlau sib txawv raws li cov khoom siv vuam. Zoo li soldering hlau taub. Yog tias tsim nyog, koj tuaj yeem siv cov ntaub ntawv los hloov kho cov duab ntawm cov hlau taub hau txhua lub sijhawm. Feem ntau hais lus, round inclined nto thiab compound inclined nto yog siv ntau dua.
4 Tin plating ntawm soldering hlau taub
Lub taub hau hlau feem ntau yog ua los ntawm cov tooj liab liab, thiab nws txoj haujlwm yog khaws cov cua sov, ua kom sov lub vuam thiab yaj lub vuam. Nws tuaj yeem muab faib ua ob hom: hom zoo tib yam thiab lub neej ntev. Cov kua nplaum qhwv lub ntsej muag ua haujlwm ntawm lub hauv ntej kawg ntawm lub taub hau ntawm lub taub hau, thiab cov tooj liab atoms yuav txuas ntxiv mus rau hauv cov khoom siv, thiab qhov kub siab dua, qhov sib txawv yuav nrawm dua. Tsis tas li ntawd, qhov flux corrosion thiab mechanical hnav nrog lub vuam yuav ua rau cov pits thiab pits ntawm qhov chaw ua haujlwm ntawm cov hlau taub hau. Tsis tas li ntawd, thaum lub sijhawm ua haujlwm vuam, cov kua nplaum tau dipped nyob rau hauv pem hauv ntej kawg ntawm lub taub hau ntawm cov hlau soldering yuav nrawm oxidation thiab poob tawm ntawm qhov chaw ua haujlwm ntawm qhov kub thiab txias, uas yuav ua rau lub ntsej muag ntawm qhov chaw ua haujlwm oxidize thiab tsis zoo. mus rau tshav kub hloov. Nyob rau hauv cov xwm txheej hnyav, lub taub hau hlau yuav yog "Hlawv kom tuag", uas tsis yog-stick tin, tsis muaj cua sov hloov, tsis melting ntawm tin. Thaum cov hlau taub hau muaj qhov me me los yog oxidation, nws tuaj yeem ntxuav thiab txiav nrog cov ntawv xuab zeb zoo. , Tinning yuav tsum tau nqa tawm ua ntej siv. Txoj kev yog: muab ib qho nyiaj tsim nyog ntawm rosin thiab solder rau ntawm lub rooj ntoo. Thaum qhov kub ntawm lub taub nce siab txaus kom yaj lub solder, rub lub hau ntawm cov hlau soldering dua nyob rau hauv lub molten solder thiab rosin kom txog rau thaum lub tiav ua hauj lwm nto yog them nrog ib tug txheej ntawm solder.
Lub neej ntev ntawm cov hlau nplaum yog phaj txheej ntawm cov hlau ntshiab uas tsis yooj yim rau diffuse nrog cov tin, hnav-tiv taus thiab corrosion-resistant rau sab nrauv ntawm qhov zoo tib yam soldering hlau taub, thiab tom qab ntawd phaj ib txheej ntawm cov hlau. txheej nyob rau pem hauv ntej ua hauj lwm nto kom muaj ib tug zoo wetting nyhuv nrog tin Nickel. Lub neej ntev ntawm cov hlau nplaum tsis yooj yim rau hnav thiab tsis tas yuav tsum tau txiav. Nws lub neej yog li 20 npaug ntawm qhov zoo tib yam soldering hlau taub [3]. Lub neej ntev ntawm cov hlau taub hau kuj yuav raug oxidized los yog "hlawv" ntawm qhov kub thiab txias. Thaum nws yog "hlawv tuag", tsuas yog siv cov roj hmab whetstone los so tawm cov txheej txheem oxide, thiab siv cov dej ua haujlwm siab rau tin-phaj ntawm cov hlau taub hau. Koj tsis tuaj yeem siv cov ntawv xuab zeb thiab cov ntaub ntawv los kho cov hlua hlau ntev ntev. Thaum cov hlau-nickel txheej nyob rau pem hauv ntej ua hauj lwm nto puas lawm, nws yuav dhau los ua ib tug zoo tib yam soldering hlau. taub hau.
Ordinary soldering hlau cov lus qhia feem ntau yog siv hauv kev qhia hluav taws xob. Thaum lub sij hawm tu thiab kho cov lus qhia ntawm cov hlau soldering tsis tu ncua, cov tub ntxhais kawm raug cob qhia kom paub cov txuj ci tseem ceeb ntawm kev siv hluav taws xob vuam. Thaum koom nrog hauv kev ua haujlwm hauv tshuab hluav taws xob rau lub sijhawm ntev, xaiv cov lus qhia txog lub neej ntev tuaj yeem txhim kho kev ua haujlwm zoo.
5 Kev hloov kho kub ntawm cov hlau zoo tib yam
Nyob rau hauv qhov xwm txheej ntawm lub zog hluav taws xob ib txwm muaj, qhov kub ntawm cov hlau zoo tib yam yog txiav txim siab los ntawm cov hauv qab no: lub zog ntawm cov hlau soldering, qhov txheeb ze ntawm cov hlau taub hau thiab cov cua sov, thiab qhov kub thiab txias. Qhov siab dua lub zog, qhov kub ntawm cov hlau soldering tuaj yeem ncav cuag; Qhov ntev ntawm lub pob yog, qhov luv luv nws nthuav tawm ntawm lub cev ntawm cov hlau soldering, thiab qhov kub thiab txias; qhov siab dua qhov kub ntawm qhov chaw, qhov qeeb ntawm cov cua sov dissipation ntawm cov hlau taub hau, thiab nws qhov kub thiab txias. Thaum soldering, koj tuaj yeem kho qhov ntev ntawm cov hlua hlau txuas txuas tawm ntawm lub cev hlau raws li qhov taw qhia ntawm cov hlau siv. Kho qhov kub ntawm lub taub hau soldering. Raws li txoj cai, nws ntseeg tau hais tias cov nyhuv soldering yog zoo dua thaum lub solder sib koom yog rhuab mus rau 50 degree siab tshaj qhov melting point ntawm solder [2]. Qhov kub tau poob lawm. Raws li kev sib koom ua ke thiab qhov loj ntawm qhov vuam, qhov kub ntawm qhov kawg ntawm lub taub hau ntawm lub taub hau tuaj yeem hloov kho mus rau 30 ~ 80 degree siab tshaj qhov melting point ntawm lub solder. Feem ntau, nws yuav tsum tsis txhob siab tshaj qhov melting point ntawm 100 degree. Thaum nws siv, nws yooj yim rau oxidize los yog "kub kom tuag".
Table 1 yog ib txheej ntawm kev hloov kho qhov kub thiab txias sim cov ntaub ntawv ntawm ib qho kev siv 50 W sab nraud cua sov hluav taws xob soldering hlau. Cov khoom siv cua sov yog lub cev tubular ceramic nrog qhov ntev ntawm 45 hli thiab txias tsis kam ntawm 1060 Ω; qhov ntev ntawm lub taub hau yog 85 hli thiab txoj kab uas hla yog 5 hli; degree; Qhov kev sim ib-theem AC fais fab mov voltage yog 228 V.
