Txog tooj liab

Tooj liabyog ib qho ntawm cov hlau thaum ntxov tshaj plaws uas tib neeg pom thiab siv, xim av-liab, qhov hnyav tshwj xeeb 8.89, qhov taw tes yaj 1083.4 ℃. Tooj liab thiab nws cov hlau sib xyaw yog siv dav vim lawv cov hluav taws xob zoo conductivity thiab thermal conductivity, muaj zog tiv thaiv corrosion, yooj yim ua, lub zog tensile zoo thiab lub zog qaug zog, thib ob tsuas yog hlau thiab txhuas hauv kev siv cov khoom siv hlau, thiab tau dhau los ua cov khoom siv tseem ceeb thiab cov khoom siv tseem ceeb hauv kev lag luam hauv tebchaws thiab tib neeg txoj kev ua neej, cov haujlwm tiv thaiv lub tebchaws thiab txawm tias cov teb high-tech. Nws yog siv dav hauv kev lag luam hluav taws xob, kev lag luam tshuab, kev lag luam tshuaj lom neeg, kev lag luam tiv thaiv lub tebchaws thiab lwm lub chaw haujlwm. Hmoov tooj liab zoo yog cov khoom siv ua los ntawm cov hlau tsis muaj tooj liab uas tau mus txog qee qhov ntsuas zoo los ntawm cov txheej txheem beneficiation thiab tuaj yeem xa ncaj qha rau cov neeg smelting rau tooj liab smelting.

Tooj liab yog ib hom hlau hnyav, nws qhov kub yaj yog 1083 degrees Celsius, qhov kub npau yog 2310 degrees, tooj liab ntshiab yog xim av-liab. Tooj liab hlau muaj hluav taws xob zoo thiab thermal conductivity, thiab nws cov hluav taws xob conductivity yog qib thib ob hauv txhua yam hlau, thib ob tsuas yog nyiaj. Nws cov thermal conductivity yog qib thib peb, thib ob rau nyiaj thiab kub. Tooj liab ntshiab yog qhov yooj yim heev, qhov loj li ib tee dej, tuaj yeem rub mus rau hauv 2,000 meter ntev filament, lossis dov rau hauv ib daim ntawv ci pob tshab dav dua li qhov chaw pw.

 

"Dawb phosphor tooj liab plating" yuav tsum txhais tau tias "phosphor tooj liab nrog dawb txheej rau ntawm qhov chaw". "Dawb plating" thiab "phosphor tooj liab" yuav tsum nkag siab nyias.

Dawb plating -- Cov xim ntawm cov txheej yog dawb. Cov khoom siv plating txawv lossis cov zaj duab xis passivation txawv, cov xim ntawm cov txheej kuj txawv. Phosphor tooj liab tinning rau cov khoom siv hluav taws xob yog dawb yam tsis muaj passivation.

 

Tooj liab phosphorus - tooj liab uas muaj phosphorus. Tooj liab phosphorus yooj yim rau soldering thiab muaj elasticity zoo, thiab feem ntau siv rau hauv cov khoom siv hluav taws xob.

 

Tooj liabyog tooj liab. Nws tau txais nws lub npe los ntawm nws cov xim ntshav. Saib tooj liab rau ntau yam khoom.

Tooj liab yog tooj liab ntshiab hauv kev lag luam, nws lub ntsiab lus yaj yog 1083 ° C, tsis muaj kev hloov pauv isomerism, thiab nws qhov ceev sib piv yog 8.9, tsib zaug ntawm magnesium. Kwv yees li 15% hnyav dua li cov hlau ib txwm. Nws muaj xim liab liab, ntshav tom qab tsim cov zaj duab xis oxide ntawm qhov chaw, yog li nws feem ntau hu ua tooj liab. Nws yog tooj liab uas muaj qee qhov oxygen, yog li nws tseem hu ua tooj liab uas muaj oxygen.

Tooj liab yog lub npe rau nws cov xim liab purplish. Nws tsis tas yuav yog tooj liab ntshiab, thiab qee zaum ntxiv me me ntawm cov ntsiab lus deoxidation lossis lwm yam ntsiab lus los txhim kho cov khoom siv thiab kev ua tau zoo, yog li nws kuj raug cais ua tooj liab alloy. Cov ntaub ntawv ua tooj liab Suav tuaj yeem muab faib ua plaub pawg raws li cov khoom sib xyaw: tooj liab ib txwm (T1, T2, T3, T4), tooj liab tsis muaj oxygen (TU1, TU2 thiab siab-purity, vacuum oxygen-free copper), tooj liab deoxidized (TUP, TUMn), thiab tooj liab tshwj xeeb (arsenic tooj liab, tellurium tooj liab, nyiaj tooj liab) nrog me me ntawm cov ntsiab lus alloying. Lub zog hluav taws xob thiab thermal conductivity ntawm tooj liab yog qhov thib ob tsuas yog nyiaj, thiab nws yog dav siv hauv kev tsim cov khoom siv conductive thiab thermal. Tooj liab hauv huab cua, dej hiav txwv thiab qee cov kua qaub tsis-oxidizing (hydrochloric acid, dilute sulfuric acid), alkali, ntsev kua thiab ntau yam organic acids (acetic acid, citric acid), muaj kev tiv thaiv corrosion zoo, siv hauv kev lag luam tshuaj lom neeg. Tsis tas li ntawd xwb, tooj liab muaj qhov vuam zoo thiab tuaj yeem ua rau ntau yam khoom tiav thiab cov khoom tiav los ntawm kev ua txias thiab thermoplastic. Xyoo 1970, kev tsim cov tooj liab liab tau ntau dua li tag nrho cov khoom tsim ntawm lwm cov hlau tooj liab.