Tsim nyog cov kev mob rauSoldering PCBCircuit Court Boards

1.Qhov weldment yuav tsum muaj weldability zoo

Qhov thiaj li hu ua solderability yog hais txog kev ua yeeb yam ntawm cov khoom siv cov khoom me me uas yuav tsum tau welded thiab kev tawm tsam tuaj yeem tsim kev sib txuam ntawm qhov ntsuas kub. Tsis yog txhua tus hlau muaj qhov zoo weldability. Qee cov hlau, xws li chromium, molybdenum, tungsten, thiab lwm yam, muaj weldability heev; Qee cov hlau, xws li tooj liab, tooj dag, thiab lwm yam, muaj cov weldability zoo dua. Thaum lub sij hawm vuam, qhov kub ua rau ib tug oxide zaj duab xis los ua rau ntawm cov hlau saum npoo, uas cuam tshuam rau weldability ntawm cov khoom. Txhawm rau txhawm rau txhim kho szering, saum npoo plating, nyiaj plating thiab lwm yam kev ntsuas tuaj yeem siv los tiv thaiv oxidation ntawm cov khoom saum npoo.

2.Qhov saum npoo ntawm weldment yuav tsum tau ceev

Txhawm rau kom ua tiav kev sib xyaw ua ke zoo ntawm kev kub thiab weldment, lub vuam nto yuav tsum tau ceev ceev. Txawm rau Weldments nrog cov weldability zoo, oxide zaj duab xis thiab roj stains uas muaj kev phom sij rau saum npoo ntawm weldment vim kev sib txuas. Cov hmoov duab av yuav tsum tau muab tshem tawm ua ntej vuam, txwv tsis pub cov vuam zoo tsis tuaj yeem lav. Cov roj oxide me me ntawm cov hlau tuaj yeem tshem tawm los ntawm Flux. Hlau chaw nrog oxidation hnyav yuav tsum tau muab tshem tawm los ntawm kev siv tshuab lossis tshuaj lom neeg, xws li scraping lossis pickling.

3. siv uas phim flux

Kev ua haujlwm ntawm flux yog kom tshem tawm cov yeeb yaj kiab oxide nyob rau saum npoo ntawm weldment. Cov txheej txheem sib txawv welding yuav tsum muaj cov roj sib txawv, xws li npib tsib xee-chromium alloy, hlau stainless, txhuas thiab lwm yam khoom siv. Nws yog qhov nyuaj rau cov quav tsis muaj kev cuam tshuam tshwj xeeb flux. Thaum vuam precision cov khoom lag luam xws li cov ntawv luam tawm hluav taws xob, txhawm rau ua kom lub vuam txhim kho thiab ruaj khov, Rosin-based flux feem ntau yog siv. Feem ntau, cawv yog siv los tshem tawm Rosin rau hauv cov dej rosin.

4. Lub weldment yuav tsum tau rhuab rau qhov ntsuas kub uas tsim nyog

Thaum lub sij hawm vuam, txoj haujlwm ntawm lub zog thermal yog kom yaj tawm mus rau hauv lub zog vuam, kom sov lub zog ua kom muaj zog rau cov hlau ntawm cov hlau kom tsim ib qho kev sib tw. Yog hais tias lub tshuab ntsuas kub dhau lawm, nws yuav ua phem rau kev nkag mus rau kev nkag mus ntawm solder atoms, ua rau nws tsis yooj yim sua kom tsim ib qho cuav. Yog hais tias lub tshuab ntsuas kub dhau lawm, tus tub yuav nyob hauv lub xeev tsis muaj kev cuam tshuam nrog cov fluciorate, thiab muaj peev xwm ua rau cov kab mob hnyav, tuaj yeem ua rau cov ntaub qhwv rau ntawm cov ntawv luam tawm hluav taws xob kom poob tawm. Dab tsi yuav tsum tau hais meej yog tias tsis tsuas yog siv zog yuav tsum tau muab rhaub kom yaj mus rau ib qho kub uas tuaj yeem yaj cov hlua.

5. Haum vuam lub sijhawm

Vuam lub sijhawm hais txog lub sijhawm yuav tsum rau lub sijhawm uas yuav tsum muaj rau kev hloov kho lub cev thiab tshuaj thaum lub sij hawm tag nrho cov txheej txheem vuam. Nws suav nrog lub sijhawm rau cov hlau yuav tsum welded kom ncav cuag lub vuam kub, lub sijhawm rau flux ua haujlwm thiab lub sijhawm rau cov hlau hlau los ua. Tom qab kev sib tw kub yog txiav txim siab, lub sijhawm tsim nyog vuam yuav tsum txiav txim siab raws li cov duab, xwm yeem, thiab cov yam ntxwv ntawm cov khoom kom welded. Yog tias lub sijhawm ua haujlwm ntev ntev dhau lawm, cov khoom siv lossis vuam qhov chaw yuav tau yooj yim; Yog tias lub sijhawm vuam luv luv heev, kev xav tau vuam yuav tsis tau ntsib. Feem ntau, lub sijhawm siab kawg rau txhua lub pob sib koom ua ke yuav welded tsis muaj ntau tshaj 5 vib nas this.