Cov hlau Soldering yog qhov fusible alloy, feem ntau ntawm tin thiab nyiaj lossis hmoov txhuas, uas tau txuas rau hauv daim ntawv yooj yim. Shaping solder rau hauv xaim tso cai rau nws ua kiav txhab ntawm spool rau kev yooj yim cia thiab unwound rau siv raws li qhov tsim nyog. Qee cov hlau soldering yog lub zog haum, thaum lwm yam ntau yam tuaj nrog tus ntxhais flux. Cov hlau Soldering tuaj yeem ua tau ntawm ntau cov sib txuas, thiab qee cov hlau alloys muaj txiaj ntsig zoo dua li lwm tus rau cov haujlwm tshwj xeeb. Ntau cov tin thiab cov hlau txhuas yog cov keeb kwm siv rau kev siv xws li cov khoom siv hluav taws xob thiab kav dej, txawm tias cov hlau lead yuav hloov los ntawm cov hlau xws li nyiaj thiab antimony rau kev noj qab haus huv lossis ib puag ncig.
Cov hom kev siv hlau sib txuas ua ke feem ntau sib txawv los ntawm lawv cov tuab thiab cov hlau uas lawv ua los. Cov xov hlau nyhiab feem ntau pab tau rau cov khoom siv hluav taws xob me me ua haujlwm, thaum cov kev xaiv hnyav dua tuaj yeem ua tau zoo rau cov kav dej ua haujlwm lossis ua hluav taws xob ua ke. Kev sib xyaw eutectic ntawm 63% tin thiab 37% cov hlau lead yog cov qauv nrov ntawm cov hlau xaim rau kev ua haujlwm ntawm cov khoom siv hluav taws xob, vim tias hom kev sib xyaw no muaj lub suab sib cais tsis yog qhov ntau. Alloys nrog cov hlau lead siab cov ntsiab lus tau nrov dua rau cov ntawv thov xws li cov kav dej raws li cov no yuav nquag ua kom qeeb dua, uas tuaj yeem muaj txiaj ntsig zoo thaum koom tes kav dej.
Vim tias muaj qee qhov kev txhawj xeeb txog kev lom los ntawm txhuas, ntau yam ntawm lwm cov hlau yog siv hauv cov hlau txuas. Qee lub tseemfwv tau tshaj tawm txoj cai lij choj uas xav kom cov neeg ua lag luam muag dawb, thaum lwm tus muab cov nyiaj se rau siv. Qee cov ntaub ntawv uas hloov tau cov hlau txhuas hauv cov hlau muaj suav cov nyiaj, antimony, tooj, thiab zinc.
Txhua cov alloy siv hauv cov xov hlau soldering feem ntau melts qhov chaw ntawm 190 txog 840 degrees Fahrenheit (90 txog 450 Celsius). Cov tub luam uas siv cov hlau xws li antimony thiab nyiaj feem ntau muaj qhov chaw ua kom lub siab ploj dua li cov txhuas ua piv. Cov tooj dag hlau uas tau suav cov tooj liab thiab zinc feem ntau siv rau hauv kev sib tsoo, uas yog cov txheej txheem zoo sib xws uas muaj cov khoom siv hlau nrog cov ntsiab lus siab dua li 840 degrees Fahrenheit (450 Celsius).
Flux cored soldering hlau feem ntau muaj ib lossis ntau qhov veins sab hauv ntawm acid lossis rosin based cov ntaub ntawv. Qhov hom hlau cam ua rau nws tsis tsim nyog thov kev hloov hluav taws xob sab nraud thaum lub sijhawm txheej txheem soldering. Raws li cov hlau tooj cam yog uncoiled thiab rhuab, sab hauv flux melts zoo li. Qhov no tso cai rau flux tshem tawm cov hlau oxides ntawm cov khoom sib txuas uas koom nrog. Acid core hlau feem ntau yog siv rau cov ntawv thov cov kav dej, thaum rosin xaim yog qhov muaj txiaj ntsig hauv cov khoom siv hluav taws xob.
