Txoj Kev Txhim Kho Ntawm Tin Bismuth Alloy Solder

Cov lus qhia ROHS tau ua tiav hauv 2006: nruj me ntsis txwv tsis pub cov ntsiab lus ntawm txhuas tsis tuaj yeem tshaj 0.1 feem pua. Nyob rau tib lub sijhawm, lwm lub tebchaws tau ua tiav daim nqi txhuas tsis muaj txhuas, maj mam txwv kev siv cov hlau lead hauv kev lag luam hluav taws xob, thiab pib kawm cov hlau leadless solder los hloov cov tsoos Sn-Pb solder.

Tam sim no lees paub cov pob txuv tsis muaj hmoov txhuas uas muaj peev xwm los hloov cov khoom siv lead ua ib txwm muaj xws li tsib alloy series: Sn-Bi, Sn-Zn, Sn-Ag, Sn-Cu, thiab Sn-Ag-Cu.Nrog lawv, Sn42Bi58 solder muaj qhov zoo ntawm qhov qis melting point. Raws li ib qho zoo tagnrho cov khoom siv qis-kub vuam, lawv muaj qhov kev thov dav dua. Nws yog tsuas yog siv rau qis-temperature welding ntawm qhov kub thiab txias-sensitive ntsiab thiab qee lub sijhawm uas tsis tshua muaj qhov yuav tsum tau ua.Txawm li cas los xij, cov khoom xyaw Sn-Bi muaj cov teeb meem hauv qab no thaum lub sijhawm ua haujlwm: vim hais tias lub hauv paus brittleness ntawm Bi ntsiab txo cov brittleness ntawm cov hlau. Tsis tas li ntawd, Bi yog ib qho yooj yim rau ricate ntawm qhov kub thiab txias, uas ua rau plasticity thiab ductility tsis zoo, yog li txo cov khoom siv hluav taws xob ntawm leej niam alloy.
Cov no tsuas yog txwv rau kev siv ntxiv ntawm Sn-Bi solder.