Qhov kev xaiv kom raug ntawm cov hlau taub hau thiab yuav ua li cas ua haujlwm zoo
(1) Cov qauv ntawm cov hlau taub hau
Cov tswv yim hlau soldering feem ntau yog ua los ntawm cov khoom siv tooj liab. Txhawm rau tiv thaiv nws los ntawm oxidation thiab xeb nyob rau hauv qhov kub thiab txias ntawm vuam, cov hlau taub hau feem ntau yog electroplated, feem ntau yog hlau-nickel alloy plated, thiab pem hauv ntej kawg ntawm cov hlau taub hau feem ntau yog hlau plated. Qee cov lus qhia hlau soldering kuj yog ua los ntawm cov ntaub ntawv alloy uas tsis yooj yim oxidized.
(2) Cov duab thiab specifications ntawm soldering hlau taub
Muaj ntau ntau cov duab thiab specifications ntawm soldering hlau tswv yim. Cov duab tseem ceeb ntawm cov lus qhia hlau muaj xws li conical, chisel-puab (cav duav-puab), horseshoe-puab, ob-thooj flat-shovel horseshoe-puab, square, kub chuck, thiab lwm yam.
(3) Kev xaiv kom raug ntawm cov hlau taub hau
Kev xaiv kom raug ntawm cov taub hau hlau tuaj yeem ua tau zoo dua vuam ntawm qhov kub qis tshaj plaws thiab ua kom lub neej ua haujlwm siab tshaj plaws ntawm cov hlau taub hau. Lub hauv paus tseem ceeb rau kev xaiv ib lub tswv yim soldering yog raws li hauv qab no.
●Xaiv qhov tsim nyog ntawm cov hlau taub hau raws li hom khoom siv los ua welded. Piv txwv li: thaum disassembling SOIC, koj yuav tsum xaiv ib tug ob-thooj tiaj tus duav hom horseshoe-zoo li tus soldering hlau taub, thiab thaum disassembling QFP / PLCC, koj yuav tsum xaiv ib tug square-shaped soldering hlau taub.
● Xaiv qhov loj me me uas tsim nyog rau cov hlua hlau raws li qhov loj ntawm cov pob qij txha ntawm cov khoom yuav tsum tau welded. Piv txwv li, lub conical soldering hlau taub tuaj yeem siv rau cov pob qij txha me me, thiab cov chisel-shaped lossis cylindrical soldering hlau taub tuaj yeem siv rau cov pob qij txha loj dua, raws li qhia hauv daim duab 4-58.
(4) Kev siv thiab tu cov lus qhia ntawm cov hlau soldering
① Thaum cov tin tau thov thawj zaug, cov hlau tin yuav tsum pib hu rau lub taub hau ntawm qhov kub thiab txias (nyob ib ncig ntawm 183 degree), thiab yuav tsum tsis txhob tshaj qhov tinned seem ntawm cov hlau soldering. Tsis txhob siv cov hlau nplaum rau sab saum toj lossis rub lub cuab yeej pins thaum siv los tiv thaiv kev puas tsuaj rau txheej thiab deformation ntawm cov hlau soldering.
② Nws yog qhov zoo tshaj kom tsis txhob siv lub ntsuas kub tswj cov hlau tshaj 350 degree. Kev kub siab ntau dhau yuav ua rau kev puas tsuaj rau txheej txheej.
③ Ntxuav lub taub hau ntawm lub taub hau thiab ntxiv cov tin rau hauv lub taub hau hlau kom yooj yim rau kev ua kom sov. Khaws cov tin rau ntawm qhov kawg ntawm cov hlau soldering thiab ntxuav lub taub txhua lub sijhawm.
④ Lub acidity ntawm cov flux nyob rau hauv lub solder hlau core yog siab, uas kuj yuav cuam tshuam rau lub neej ntawm lub soldering hlau taub. Tsis txhob siv flux los ntxuav lub taub hau hlau.
⑤ Cov yas ua npuas dej siv los ntxuav yuav tsum muaj qhov tsim nyog viscosity thiab av noo. Lub taub hau hlau yog yooj yim oxidized thaum nws los rau hauv kev sib cuag nrog dej.
⑥Rau cov lus qhia hlau-plated nickel alloy soldering hlau, tsis txhob siv riam lossis lwm yam khoom los txhuam cov oxide txheej, thiab tsis txhob siv cov khoom tawv los tsoo cov tin slag rau ntawm cov hlau soldering taub L (tshwj tsis yog cov lus qhia hauv tsev tooj liab soldering hlau) .
⑦ Thaum cov hlau tsis siv rau lub sijhawm ntev, lub zog yuav tsum raug muab tua kom tsis txhob nrawm oxidation ntawm cov tub ntxhais hlau soldering thiab ua rau lub neej ua haujlwm luv (tam sim no, qee qhov chaw kub kub tsis tu ncua yog tsim los nrog kev ua haujlwm tsis siv neeg pw) .
⑧ Ua ntej yuav tua cov hlau, cov hlau nplaum yuav tsum tau tinned kom tsis txhob muaj oxidation ceev.
