Rose alloy, muaj npe tom qab German chemist, yog siv rau soldering thiab kev txhim kho cov txuj ci zoo ntawm cov khoom hauv cov khoom siv. Nrog kev pab ntawm cov ntawv hlau, aluminium, tooj liab, nyiaj, tooj dag, npib tsib xee tau txuas nrog thiab cov laug cam thiab cov hniav nyiaj hniav kub yog tinned.
Muaj pes tsawg leeg ntawm Rose alloy thiab nws daim teb ntawm kev thov
Rose alloy yog tsim los ntawm kev sib xyaw bismuth (50.0 ± 0.5%), tin (18.0 ± 0.5%) thiab txhuas (32.0 ± 0.5%). Cov alloy no yog muag muag ua pellet silvery. Hais txog cov yam ntxwv ntawm lub cev, Rose alloy zoo li Ntoo Lub Khaub Ncaws, tsuas yog nws tsis tshua muaj kuab lom vim tias tsis muaj cadmium nyob rau hauv nws cov muaj pes tsawg leeg (12.5% hauv Wood's alloy).
Kev kub txias ntawm qhov sib xyaw ntawm cov xim no tsuas yog 94-96 ° C, yog li nws yooj yim heev rau siv nws. Ntau tus kws tshaj lij xov tooj cua tau pom tias siv Rose's alloy hauv tinning tooj liab saum npoo ntawm pawg thawj coj saib. Ntxiv nrog rau kev sib xyaw ntawm cov hlau nws tus kheej, qhov kev ua haujlwm no tseem siv lub thawv ntim uas tsim nyog, lub npas paj rwb lossis cov discs, citric acid thiab ob daim txiag ntoo.
Vim nws cov khoom hauv lub cev, Rose alloy yog siv rau hauv hluav taws xob, lub chaw soj nstuam rau kev siv tshuab hluav taws xob nrog cov khoom rhiab ntau dhau thiab hauv xov tooj cua engineering, raws li POSV 50 solder alloys. Rose tseem siv rau tinning bronze, tooj dag, tooj liab, tooj liab-nickel alloys nrog nyiaj-plated ceramics, nickel thiab cov hniav nyiaj hniav kub.
Yuav ua li cas Tin ib PCB nrog Rose Alloy
Ntau zaus, Rose alloy yog siv rau tinning cov ntawv luam tawm Circuit Court hauv tsev. Nws tshwm sim raws li txoj kev hauv qab no. Siv ib lub taub ntim uas tinning yuav tshwm sim, thiab nchuav ib nrab khob dej rau hauv, muab nws tso rau hluav taws. Thaum cov dej ua kom sov me ntsis, ncuav ib me nyuam diav ntawm citric acid rau nws thiab do. Tso lub voj voog luam ntawv hauv lub thawv. Thaum lub rooj tsavxwm tig xim liab, tso ob peb daig ntawm Rose alloy ncaj qha rau hauv lub thawv rau ntawm cov ntawv ci-txheej. Tos kom txog thaum nws yaj tag.
Thaum Rose ua kua, siv cov ntoo ntoo nrog xaus qhwv hauv daim ntaub lossis paj rwb ntaub plaub kom nws hla ntawm cov ntawv luam tawm. Yog tias cov ntawv tau ua kom tiav ntawm cov txiag, koj tuaj yeem muab lawv rov qab rau hauv qhov chaw nrog cov pas nrig, lossis tig lub rooj tsavxwm thiab nias nws tawm tsam nrog cov ntawv ci. Koj tuaj yeem tshem cov hlau ntau nrog cov ntawv qub, so Rose los ntawm ntawv ci nrog lub teeb txav. Tshem tawm cov txiag tiav hauv lub khob thiab muab cia rau kom txias.
Yuav ua li cas kov Alloy Rose
Lub Pob Ntseg Rose yog thauj raws li tus qauv ib txwm tsim rau kev thauj cov hlau. Lub rose yuav tuaj yeem thauj nyob hauv tsheb lossis lossis ib txoj kev tsheb nqaj hlau. Cov xaim yog khaws cia ob qho tib si hauv chaw kaw thiab hauv huab cua qhib, tab sis hauv cov thawv ntim zoo zoo. Lub zog alloy nws tsis yog lom, tab sis ib qho yuav tsum tsis txhob hnov qab tias nws muaj cov hlau hnyav. Nws yog qhov tsis tsim nyog ua haujlwm nrog nws ntev dhau lawm.
