Feem ntau muaj ob txoj hauv kev los tuav cov hlau nplaum: tus cwj mem tuav thiab txoj kev tuav lub nrig.
(1) Yuav tuav tus cwj mem li cas. Haum rau lub teeb yuag hlau xws li 30W sab hauv cua sov hom. Nws lub taub hau hlau yog ncaj nraim, thiab lub taub hau kawg tau muab tso rau hauv ib qho bevel lossis lub khob hliav qab, uas yog tsim rau cov ntaub qhwv nrog ib qho chaw me me.
(2), fisting method. Nws yog tsim rau high-power soldering hlau. Peb feem ntau tsis siv high-power soldering irons hauv hluav taws xob ntau lawm (tsis tau qhia ntawm no).
Muaj ntau txoj hauv kev ntawm soldering ua rau ntawm lub rooj tsav xwm luam tawm.
Printed circuit boards tau muab faib ua ob hom: ib sab thiab ob sab. Qhov los ntawm qhov ntawm nws feem ntau tsis yog-metallized, tab sis txhawm rau ua kom cov vuam ntawm cov khoom ntawm lub rooj tsav xwm Circuit Court muaj zog thiab txhim khu kev qha, feem ntau ntawm cov qhov hauv cov ntawv luam tawm ntawm cov khoom siv hluav taws xob tam sim no metallurgy. Txoj kev ntawm soldering ua rau ib tug zoo tib yam board:
(1) Ncaj ncaj los ntawm kev txiav plaub hau. Cov hlau lead hla ncaj qha los ntawm lub qhov. Thaum welding, ib qho tsim nyog tus nqi ntawm molten solder yog tusyees nyob ib ncig ntawm lub tinned txhuas hlau saum lub ncoo los tsim ib lub khob hliav qab. Tom qab nws txias thiab solidifies, txiav tawm cov hlau lead ntau dhau. (Saib lub blackboard rau cov txheej txheem tshwj xeeb)
(2) Cia li raus koj tus kheej rau hauv nws. Tsuas yog qhov tsim nyog ntev ntawm cov hlau lead uas dhau los ntawm lub qhov yog raug, thiab cov molten solder faus lub taub hau txhuas hauv qhov sib koom ua ke. Hom kev sib koom tes no yog kwv yees li hemispherical. Txawm hais tias nws yog qhov zoo nkauj, kev saib xyuas tshwj xeeb yuav tsum tau them rau kev tiv thaiv tsis muaj tseeb.
Kev ceev faj rau kev siv cov hlau soldering (kev ceev faj rau kev siv tshuab hluav taws xob soldering hlau)
(1) Cov hlau uas tau muag tshiab yuav tsum tau dipped rau hauv ib txheej ntawm cov tin ua ntej siv (lub hwj chim ntawm cov hlau soldering, thiab tom qab ntawd siv lub tin bar ze rau lub ntsis thaum cov hlau soldering yog rhuab mus rau ib theem). Yog hais tias cov hlau soldering tau siv ntev heev, lub hau ntawm cov hlau soldering yuav tsum tau ua ntaub ntawv nws ci ntsa iab, ces tig rau hluav taws xob kom sov nws, thiab dilute lub soldering hlau taub hauv me ntsis rosin. Thaum cov rosin haus luam yeeb, thov cov tin, kom lub ntsej muag ntawm cov hlau taub hau yog thawj plated nrog ib txheej ntawm tin.
(2) Tom qab cov hlau nplaum tau siv rau lub sijhawm, cov nplais tin yuav nyob twj ywm ntawm lub taub hau ntawm cov hlau. Peb tuaj yeem maj mam so nws nrog daim ntaub ntub dej thaum lub hlau soldering yog rhuab. Yog tias muaj cov pits lossis oxide blocks, siv cov ntaub ntawv zoo los kho lawv lossis hloov lub taub hau hlau ncaj qha.
(3) Qhov kub ntawm cov hluav taws xob soldering hlau nce mus txog 250 degrees Celsius tom qab nws tau siv. Nws yuav tsum tau muab tso rau ntawm cov hlau soldering thaum tsis siv. Txawm li cas los xij, thaum tsis siv lub sijhawm ntev, cov khoom siv hluav taws xob yuav tsum raug txiav tawm kom tsis txhob cuam tshuam cov hlau nplaum ntawm qhov "hlawv" (oxidized) los ntawm qhov kub thiab txias. Nws yog ib qho tsim nyog los tiv thaiv cov hlau los ntawm kev kub hnyiab lwm yam, tshwj xeeb tshaj yog cov hlua hluav taws xob. Yog tias cov txheej txheej rwb thaiv tsev raug kub hnyiab los ntawm cov hlau soldering yam tsis tau saib xyuas, nws yuav yooj yim ua rau muaj kev nyab xeeb.
(4) Tsis txhob ntaus cov hlau soldering nyuaj kom tsis txhob tawg cov cua sov los yog cov hlau lead hauv cov hlau soldering thiab ua rau lub cev tsis zoo.
