Versatility thiab ib puag ncig xav txog ntawm cov hlau lead solder

Taw qhia:

Soldering yog txheej txheem tseem ceeb hauv kev tsim khoom siv hluav taws xob txij thaum nws tuaj.txhuas hlau soldertau yog qhov tseem ceeb ntawm ntau hom solders vim nws cov khoom zoo li qhov tsis tshua muaj melting point, siab hluav taws xob conductivity thiab yooj yim ntawm kev siv. Txawm li cas los xij, kev txhawj xeeb thoob ntiaj teb rau ib puag ncig tau muab kev siv cov hmoov txhuas uas muaj cov khoom lag luam rau lo lus nug, qhov twg yuav tsum muaj qhov sib npaug ntawm kev ua tau zoo thiab kev ruaj khov.

Versatility ntawm Lead Solder Hlau:

Tsawg Melting Point: Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm cov hlau lead hlau yog nyob ntawm nws qhov qis melting point uas feem ntau yog kwv yees li 183 ° C (361 ° F) rau eutectic alloys. Qhov no feature tso cai npaum thiab meej soldering li no tsis txhob tshav kub rhiab Cheebtsam los ntawm spoiling thaum sib txuas.

Kev Siv Hluav Taws Xob Zoo Tshaj Plaws: Cov hluav taws xob siab thiab thermal conductivity yog txuam nrog cov hlau lead hlau uas ua kom muaj kev hloov pauv ntawm cov hluav taws xob thiab cov cua sov hauv cov hluav taws xob hauv hluav taws xob vim li no ua kom cov tshuab hluav taws xob ua haujlwm tau zoo.

Wettability thiab Joint Strength: Raws li nws yog, cov hlau lead wets tau yooj yim tso cai rau nws kis tau zoo ib yam ntawm cov hlau nto yog li tsim cov pob qij txha muaj zog thiab txhim khu kev qha. Cov tom kawg yog qhov tseem ceeb rau kev ua kom ntseeg tau tias cov rooj sib txoos ua tau tuaj yeem nyob ntev yam tsis muaj kev puas tsuaj.

Kev sib raug zoo nrog ntau yam ntaub ntawv: Lead solder hlau thaum siv hauv kev tsim hluav taws xob tuaj yeem koom nrog ntau cov hlau hlau xws li tooj liab, tooj dag lossis npib tsib xee ntawm lwm tus li no ua raws li kev daws teeb meem rau ntau yam kev siv.

Environmental Issues thiab Regulations:

Txawm hais tias nws muaj txiaj ntsig zoo, cov hlau lead hlau tau ntsib cov teeb meem loj nyob rau xyoo tas los no vim muaj kev phom sij rau kev noj qab haus huv cuam tshuam nrog nws. Lead yog ib qho piv txwv ntawm cov hlau hnyav hnyav uas nws cov khoom sib txuam hauv ib puag ncig tuaj yeem ua rau tib neeg muaj kev noj qab haus huv tshwj xeeb los ntawm dej lossis av ua paug. Vim li no, ntau cov kev cai thoob ntiaj teb suav nrog European Union Txoj Cai Lij Choj Rau Cov Tshuaj Tiv Thaiv Kab Mob (RoHS) tau txwv lossis txwv kev siv cov txhuas hauv cov khoom siv hluav taws xob / hluav taws xob.

Emerging Alternatives:

Txhawm rau daws cov teeb meem no, kev lag luam tau nquag tshawb nrhiav cov hlau lead-dawb solder alloys ua lwm txoj hauv kev. Cov alloys feem ntau muaj cov tin, nyiaj, tooj liab thiab lwm yam hlau, thiab yog tsim los ua zoo li cov hlau lead, tab sis tsis muaj ntau yam kev pheej hmoo ntawm ib puag ncig lossis kev noj qab haus huv. Txawm hais tias cov hlau lead dawb yuav xav tau cov kub melting ntau dua thiab tsis yog ib txwm phim cov ntub dej thiab sib koom ua ke ntawm cov khoom siv lead ua; lawv tau dhau los ua universally siv nyob rau hauv ntau yam electronic manufacturing thoob ntiaj teb.

Lead solder hlau muaj cov khoom tshwj xeeb uas tau siv hauv kev tsim hluav taws xob rau xyoo. Txawm li cas los xij, kev nco qab ntau ntxiv txog nws qhov cuam tshuam rau ib puag ncig tau ua rau muaj kev txhim kho thiab kev lees txais cov khoom siv tsis muaj hlau lead. Yog li ntawd, nws yog ib qho tseem ceeb uas kev lag luam txuas ntxiv ua kom muaj kev sib npaug ntawm kev ua tau zoo, kev ruaj khov thiab ua raws li cov kev cai thoob ntiaj teb. Los ntawm kev qhia cov tswv yim tshiab thiab teb rau cov thev naus laus zis tshiab; cov tuam txhab hluav taws xob yuav tuaj yeem lav tias lawv tsim cov khoom lag luam uas tuaj yeem ua tiav lawv cov kev xav tau tam sim no nrog rau cov neeg nyob rau yav tom ntej yog li ua kom ntseeg tau tias qhov kev lag luam no nce siab thiab ruaj khov.