Cov lus piav qhia ntxaws txog kev ua haujlwm ntawm plaub txoj kev desoldering thaum lub sij hawm vuam
1. Desoldering txoj kev ntawm tin absorber
Siv lub siab tsis zoo ntawm cov kab noj hniav built-in ntawm cov tin suction, cov rhuab thiab molten solder yog nqus mus rau hauv kab noj hniav kom cais cov hlau lead ntawm lub ncoo.
2. Desoldering txoj kev ntawm tin suction hlua
Txoj hlua soldering desoldering txoj kev yog siv txoj hlua tinning los nqus cov molten solder cais cov hlau lead ntawm lub ncoo.
Coated ib feem ntawm lub braided hlau nrog rosin flux, tom qab ntawd muab tso rau hauv lub solder sib koom ua ke yuav tsum tau desoldered, ces muab cov hluav taws xob soldering hlau rau ntawm braided hlau kom sov lub solder sib koom, thiab thaum lub solder nyob rau hauv lub solder joint melts, nws yuav yuav absorbed los ntawm tooj liab braided hlau.
Yog hais tias qhov chaw solder tsis sucked ib zaug, nws tuaj yeem ua rau lub sijhawm thib ob lossis thib peb kom txog thaum nws nqus tau. Thaum txoj hlua braided yog tag nrho ntawm cov tin, nws tsis tuaj yeem siv tau lawm, thiab qhov chaw uas muaj tag nrho cov solder yuav tsum tau txiav tawm.
3. luv pin desoldering txoj kev
Txoj kev khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob Thaum lub soldering hlau heats lub solder thiab melts, ceev ceev tig lub koob kom txog thaum lub soldering hlau raug tshem tawm. Nws tuaj yeem nres tom qab lub solder yog solidified. Lub sijhawm no, rab koob raug rub tawm thiab cov hlau lead tau raug cais tawm.
4. Desolder nrog tin-absorbing hlau
Tin-absorbing soldering hlau yog ib qho tshwj xeeb desoldering hlau, uas tuaj yeem nqus cov tin mus rau hauv cov kab noj hniav sab hauv thaum cua sov cov pob qij txha, yog li ua kom tiav desoldering.
Kev txiav txim siab ntawm cov ntsiab lus tsis yog tus qauv tin
(1) False soldering: Zoo li nws yog soldered tab sis nws tsis yog soldered. Qhov laj thawj tseem ceeb yog tias cov ntaub qhwv thiab cov pins qias neeg lossis cov dej ntws thiab lub sijhawm cua sov tsis txaus.
(2) luv luv Circuit Court: qhov chaw nrog ko taw yog luv luv los ntawm ntau tshaj solder ntawm ob txhais taw, los yog luv luv-circuited vim tsis ua hauj lwm ntawm inspectors siv tweezers, xyoob sticks, thiab lwm yam luv luv Circuit Court nrog tus pin.
(3) Offset: vim qhov tsis raug ntawm qhov chaw ntawm lub cuab yeej ua ntej vuam, los yog ua yuam kev thaum lub sij hawm vuam, cov pins tsis nyob rau hauv qhov chaw pad.
(4) Cov tin tsawg: Cov tin tsawg txhais tau hais tias lub ntsiab lus tin yog nyias dhau los npog tag nrho cov tawv nqaij ntawm qhov, uas cuam tshuam rau kev sib txuas thiab kho cov nyhuv.
(5) Cov tin ntau dhau: Cov ko taw ntu tau npog tag nrho los ntawm cov tin thiab tsim ib qho chaw sab nrauv, kom cov duab ntawm qhov thiab lub ncoo txoj hauj lwm tsis tuaj yeem pom, thiab nws tsis tuaj yeem txiav txim siab seb cov khoom thiab cov ntaub qhwv puas yog tinned zoo. .
(6) Cov khoom tsis raug: Yog tias cov lus qhia tshwj xeeb lossis hom ntawm qhov chaw muab tso rau tsis sib xws cov kev cai ua haujlwm lossis BOM thiab ECN, lawv yog qhov tsis raug.
(7) Cov khoom uas ploj lawm: Txoj haujlwm uas yuav tsum tau muab tso rau hauv qhov chaw tsis muaj vim yog vim li cas txawv txav.
(8) Solder balls thiab tin slag: Ntau cov khoom siv solder thiab tin slag txuas rau saum npoo ntawm PCB yuav ua rau cov pins me me rau luv luv.
(9) Polarity thim rov qab: qhov tseeb ntawm polarity orientation tsis ua raws li cov txheej txheem ua, uas yog, qhov polarity tsis raug.
