Vuam yog ib feem tseem ceeb ntawm ntau tus ua koj tus kheej cov yeeb nkab kho. Thaum koj hloov ib feem ntawm cov yeeb nkab los yog nruab ib qho tshiab fixture, feem ntau koj yuav tsum tau welded ob hlau qhov chaw ua ke kom muaj ib tug zoo meej haum tsis muaj to. Txawm hais tias vuam feem ntau yog siv los ua ib lub npe tag nrho los piav txog cov txheej txheem ntawm kev sib txuas cov kav dej nrog cov hlau molten, cov txheej txheem zoo sib xws tab sis txawv, hu ua brazing, tuaj yeem siv tau. Nyeem ntxiv kom nkag siab txog qhov sib txawv.
Kev kub ceev kav kav dej tu
Qhov sib txawv ntawm vuam thiab brazing muaj feem xyuam rau cov khoom koj siv los txuas ob lub kav dej thiab qhov kub npaum li cas koj xav tau kom sov cov khoom kom yaj nws:
Kev kho cov yeeb nkab hauv tsev feem ntau siv cov khoom siv vuam, uas feem ntau yog cua sov kom sov li ntawm 360 degrees Fahrenheit. Qee zaum, qhov kub thiab txias yuav tsum siab dua, thiab cov alloys yaj ntawm 840 degrees lossis qis dua yog suav tias yog solder. Solder feem ntau yog tsim los ntawm tin thiab tov nrog lwm cov hlau (xws li npib tsib xee) kom muaj zog. Solder siv los ntawm kev sib xyaw ntawm cov tin thiab txhuas, tab sis cov neeg ua haujlwm tau tso tseg cov khoom siv vim lawv paub txog kev noj qab haus huv ntawm cov dej haus los ua cov kav dej.
Txawm li cas los xij, lwm yam kev kho cov yeeb nkab yuav tsum muaj cov hlau muaj zog uas yaj ntawm qhov kub siab dua. Cov hlau uas yuav tsum tau ua kom sov siab tshaj 840 degrees yog suav hais tias yog brazing alloys, thiab lawv feem ntau yuav tsum tau nce mus rau 1150 degrees lossis siab dua. Brazing alloys feem ntau yog ua los ntawm tooj liab thiab phosphorus los yog sib tov ntawm cov nyiaj thiab lwm yam khoom.
Tsim kom muaj qhov tsis muaj pa paug hauv cov kav dej
Tooj liab melts ntawm 1981 degrees. Obviously, koj tsis tuaj yeem kub solder lossis alloy rau qhov kub, txwv tsis pub koj yuav ua rau cov yeeb nkab puas hauv cov txheej txheem. Qhov kub no suab nrov heev, tab sis qee qhov kev ua haujlwm brazing siv lub teeb uas ua kom sov lub alloy rau 1550 degrees. Ntau cov phom vuam tsis tsim qhov kub txaus rau braze hlau, yog li koj yuav tsum tau yuav cov cuab yeej tshwj xeeb.
Tsuas yog hom alloy thiab qhov kub thiab txias ntawm vuam teeb, cov txheej txheem vuam thiab brazing yog tib yam, yog li cov kav dej xaiv ntawm ob qho tib si raws li qhov xwm txheej ntawm kev kho lawv tab tom sim kho. Vuam yog ib txoj kev siv ntau dua rau kev kho cov yeeb nkab txheem. Brazing feem ntau yog siv rau cov fittings uas yuav tsum tau tiv thaiv kev ntxhov siab ntau dua, lossis qhov twg cov kav dej tsis tuaj yeem ua kom zoo sib xws thiab yuav tau txais txiaj ntsig los ntawm kev sib raug zoo dua.