Kub Soldering nrog Indium Alloy

Nto kub plating yog dav siv nyob rau hauv lub tshav pob ntawm hluav taws xob sib dhos. Tab sis siv cov tin - raws li solder alloys ntawm xws li kub - plated nto tshem tawm cov kub txheej thiab cuam tshuam cov kub' s conduction hom. Tsis tas li ntawd, yog tias lub thickness ntawm cov txheej yog ntau tshaj 1.

Kev siv indium lead (InPb) solder ntawm kub plating tuaj yeem txo qhov kev tshem tawm no. Txij li thaum kub yog insoluble heev nyob rau hauv indium, tus nqi ntawm dissolution yog qeeb.

Lwm qhov zoo ntawm indium lead solder alloy tsev neeg yog lawv cov khoom ntub dej zoo. Qee cov alloys tseem tuaj yeem hloov tau ncaj qha tin - txhuas (SnPb) alloys los daws qhov teeb meem ntawm kev tshem tawm kub.

Indium - txhuas alloys muaj qhov kub thiab txias ntawm 149 degree thiab 300 degree, txawm hais tias alloys nrog ntau tshaj 80 % txhuas muaj cov khoom tsis zoo wetting. Indalloy #7 (50In 50Pb) yog cov feem ntau siv indium lead solder alloy nrog ib tug solidus kub ntawm 184 degree thiab ib tug liquidus kub ntawm 210 degree.

Ob yam yuav tsum tau xav txog thaum siv indium lead solder:

1. Indium txhuas yuav tsum tsuas yog siv nyob rau hauv daim ntawv thov qhov kawg ntaus ntawv ua hauj lwm kub (siv tas mus li) yog qis dua 125 degree. Saum toj no kub, khoom - theem diffusion tshwm sim, ua rau kub - indium intermetallic tebchaw.

2. Tsis txhob sib cuag nrog halides, uas corrode indium. Cov kev cai rau kev ua haujlwm ib puag ncig (xws li ib puag ncig marine, thiab lwm yam) thiab flux yog tib yam.