1. Tiv thaiv kom tsis txhob oxidation ntawm tooj liab liab saum npoo

Tooj yog yooj yim rau oxidize nyob rau hauv cov huab cua, uas ua rau PCB solder ncoo tsis muaj qhov ua kom zoo lossis txo qhov weldability, los ntawm kev tso cov tin rau ntawm cov tooj liab, cov tooj liab tuaj yeem raug cais tawm ntawm cov pa, tswj kev coj ua thiab weldability ntawm PCB.

2, khaws cov laug

Lwm txoj hauv kev kho qhov chaw suav nrog: kub yaj, cov organic tiv thaiv zaj duab xis OSP, tshuaj lom tin, tshuaj lom neeg nyiaj, tshuaj nickel kub, electroplating nickel kub thiab lwm yam; Tab sis txhawm rau txhawm rau tshuaj txau tin phaj tus nqi siv tau zoo tshaj tshuaj tsuag tin PCB lub rooj txheej txheem cov yam ntxwv ntawm tshuaj tsuag tin phaj suav nrog tooj liab tin ob txheej ntawm cov hlau tuaj yeem hloov kho rau qhov xwm txheej tsis zoo thiab kev ua haujlwm zoo dua yog qhov kub thiab qhov chaw xeb yog qhov tsim nyog. Pawg thawj coj no tau siv dav hauv kev tswj hwm cov khoom siv sib txuas lus cov khoom lag luam thiab cov khoom siv tub rog cov khoom siv tin-txau PCB kom zoo: hauv kev kho PCB ib txwm muaj, txheej txheem tshuaj txau yog paub tias yog qhov zoo tshaj plaws solderability, vim tias muaj tin ntawm lub ncoo, thaum solder tin , nrog phaj kub lossis rosin thiab txheej txheem OSP, nws yooj yim dua. Qhov no yog qhov yooj yim heev rau peb los ua ke ntawm tus kheej, vuam tsis yooj yim heev.