Tinning ntawm cov hlau tuaj yeem siv ntau qhov xwm txheej - thaum soldering, kom nce cov khoom tiv thaiv zoo ntawm cov hlau, kom zais cov flaws hauv nws qhov chaw. Feem ntau cov feem ntau, cov lag luam muag muag siv rau qhov no - nrog lub chaw melting tsis muaj siab dua 300 ° C. Cov thev naus laus zis ntawm kev siv lawv yog qhov yooj yim heev thiab tsis ua rau muaj teeb meem loj txawm tias cov neeg uas tau coj ua txoj haujlwm no thawj zaug.
Tsim nyog
- - ham;
- - flux;
- - hluav taws xob soldering hlau;
- - tshuab plaub hau los yog tshuab ziab plaub hau;
- - soldering muab tshuaj txhuam;
- - ntawv txhuam ntoo;
- - txhuam nrog pob txhav txhav txhav;
- - ntxuav huv si.
Cov Lus Qhia
Kauj ruam 1
Xaiv cov ntaub ntawv rau tinning uas zoo tshaj plaws rau cov khoom siv ntawm cov khoom lag luam uas koj yuav tau ua tin. Yog tias tiv tauj nrog cov khoom noj tau, lub ham yuav tsum tsis muaj hmoov txhuas. Muaj ntau cov hmoov txhuas-dawb muag - tin alloys nrog indium, beryllium, zinc, nyiaj. Cov tin ntshiab kuj tseem siv tau. Nws yuav tsum tau yug los hauv lub siab tias cov hlau lead tsis muaj cov roj khov qis dua cov hmoov lead-lead (POS) hauv kev nplaum thiab ntub dej. Yog li no, yog tias cov khoom lag luam tsim khoom yuav tsis muaj kev sib txuas lus ncaj qha nrog ib tus neeg, nws yog qhov zoo dua los siv cov tin-lead solders rau tinning.
Kauj ruam 2
Qhov kev xaiv ntawm flux yog txiav txim siab los ntawm hom khoom siv uas yuav tsum tau ua. Txog tinning ferrous hlau, zinc chloride (ZnCl2 - zinc chloride, soldering acid) thiab ammonium chloride (NH4Cl - ammonium chloride) zoo tshaj plaws. Rau cov hlau tsis xeb, fluoric acid yog siv. Ib qho tshuaj zoo yog unispa-3, uas yog 20% daws ntawm phosphoric acid hauv dej. Nws muaj peev xwm tshem tawm tsis tsuas yog oxide zaj duab xis los ntawm cov hlau saum npoo, tab sis kuj tseem xeb.
Kauj ruam 3
Ib txoj hauv kev yooj yim rau tinning yog solder pastes, uas muaj cov cam thiab flux hauv lawv cov qauv, uas tshem tawm qhov xav tau cais cov txheej txheem cov khoom nrog flux thiab solder. Hauv tshwj xeeb, Wurth's S-Sn97Cu3 paste tsis muaj hmoov txhuas thiab muaj cov ntub dej zoo.
Kauj ruam 4
Siv cov hluav taws xob soldering hlau ua cov cua kub nrog qhov me me thiab qhov tuab me me ntawm cov khoom. Rau qhov loj dua me me, siv lub tshuab tawg, roj teeb lossis tshuab ziab plaub hau. Cov cuab yeej siv cua sov yuav tsum muab cov cua sov ntawm cov hlau ua kom kub txog 250-300 ° C.
Kauj ruam 5
Ua ntej tinning, ntxuav cov khoom kom huv los ntawm ib co kua nplaum ntawm lub qub txheej thiab xeb siv lub xov hlau txhuam thiab ntawv txhuam. Cov hlau saum npoo yuav tsum tau muab ntxuav mus rau lub hauv paus hlau. Tshuab cov nplaim nrog huab cua kom tshem tawm cov plua plav zoo thiab pob zeb thiab degrease nws.
Kauj Ruam 6
Tom qab ntxuav tas, kho cov nplaim ntsej muag uas haum - siv txhuam los yog ntaub - thiab ua kom nws sov txog qhov xav tau qhov kub nrog ib qho ntawm cov khoom tau teev tseg hauv kauj ruam 4. Tom qab ntawd ua tiav nrog thov cov solder.
Kauj Ruam 7
Tin cov khoom me me nrog hlau nrog kub tuaj yeem ua ntawv thov rau nws, txhuam qhov txhuam nrog nws. Hauv qhov no, tus hlau los ntawm cov hlau soldering yuav mus rau cov khoom uas tau ua plated.
Kauj ruam 8
Yog tias cov khoom lag luam loj, tso tus kav rau saum npoo ntawm cov hlau kub, tos kom nws yaj thiab txhuam nws qhov chaw saum npoo nrog ntoo ntoo lossis ua tus txhuam nrog txhav txhav.
Kauj Ruam 9
Koj tuaj yeem npaj ua ntej cov tshuaj pleev rau hauv lub khob kom txog thaum nws yaj thiab nplawm nrog ib lo - kom nws siv cov pob zeb me me. Tom qab ntawd faib cov pob zeb no rau saum npoo ntawm ib sab, ua kom sov thiab txhuam tus txhuam kub nrog txhuam.
Kauj ruam 10
Thaum siv ham muab tshuaj, tom qab tu thiab degreasing rau saum npoo, siv ib txheej nyias nyias ntawm qhov sib txuas rau sab kom tau kho thiab ua kom sov nws nrog lub tshuab ziab plaub hau lossis tshuab tuaj plaub. Nyob rau tib lub sijhawm, sim tsis txhob ua kom sov - pib ntawm rhaub ntawm qhov muab tshuaj yuav tsum ua lub cim taw mus rau qhov kawg ntawm qhov cua sov hauv cheeb tsam. Tom qab ua kom sov, tshem tawm cov seem uas yog los ntawm saum npoo nrog ib daim ntaub huv.
