Koj puas tau pom tias cov khoom siv ntawm cov xov hlau thiab cov xov txuas ntawm qee cov xov hlau sib txawv, xws li cov suab thiab cov vis dis aus, cov xov tooj sib txuas, thiab lwm yam. Kev Ua Tau Zoo
Raws li lub ntsiab lus tseem ceeb ntawm tag nrho ntu ntawm cov hlau-cov khoom siv ntawm lub davhlau ya nyob twg txuas thiab xaim sib txawv, thiab cov nplaim lossis qhov sib tiv tauj hauv qhov txuas yuav tau plated nrog txheej txheej kub, uas feem ntau hu ua txheej txheem kub plating
Q: Vim li cas cov ntaub ntawv ntawm tus neeg xyuas pib thiab lub dav hlau sib txawv?
Tooj liab yog cov khoom siv dav tshaj plaws. Nws muaj hluav taws xob zoo thiab cov cua sov ua kom sov thiab tsis tshua muaj lub teeb liab xa mus. Txawm li cas los xij, lub davhlau ya nyob twg muaj qhov xav tau ntau dua li cov neeg ua haujlwm hais txog kev tiv thaiv oxidation, kev tiv thaiv corrosion, thiab kev tiv thaiv ntsaws.
Q: Vim li cas thiaj xaiv kub plating tsis yog lwm yam hlau?
1. Antioxidant
Kub muaj peev xwm tiv thaiv kab mob antioxidant. Raws li kev hloov pauv hlau, nws thawj lub zog ionization yog siab li 890.1kJ/mol, uas yog qhov thib ob tsuas yog cov mercury ntawm nws sab xis (1007.1kJ/mol), uas txhais tau tias cov pa oxygen yuav tsum tau muab los ntawm kub. Tau txais lub tshuab hluav taws xob yog qhov nyuaj heev. Tsis yog tsuas yog kub muaj lub zog ionization siab dua li lwm cov hlau, tab sis vim nws 6s orbital muaj cov hluav taws xob tsis sib xws, nws cov atomization enthalpy kuj siab. Cov atomization enthalpy ntawm kub yog 368kJ/mol (mercury tsuas yog 64kJ/mol), uas txhais tau tias kub muaj Lub zog ruaj khov hlau sib zog, muaj zog nyiam ntawm cov kub atoms, nws tsis yooj yim rau kev siv los ntawm lwm cov atoms.
2. Tiv thaiv kom tsis txhob xeb
Kub yog cov hlau ua haujlwm tsis zoo heev (nyob rau qhov kawg hauv daim ntawv teev npe ua haujlwm hlau), thiab feem ntau tsis muaj tshuaj lom nrog tshuaj lom xws li cov kua qaub thiab alkalis, yog li nws tsis yooj yim rau corroded xws li oxidation thiab sulfidation.
3. Plug tsis kam
Ntxiv rau qhov tsim nyog thiab nruj txheej txheem kev tsim khoom, qhov ua tau zoo tshaj plaws tiv thaiv kev ua haujlwm yuav ua rau nws qhov tawv thiab hnav tsis kam tom qab plating kub, txo cov khoom poob thiab nthuav cov khoom lag luam lub neej.
Kub yog hlau inert, thiab nws nyuaj heev rau oxidize thiab hloov xim thaum kub. Qhov siab dua qhov ua kom huv thiab tuab dua txheej txheej txheej kub, nws nyuaj rau oxidize thiab ua kom zoo dua qub.
Yog tias koj lub davhlau ya nyob twg yog kub plated thiab muaj cov cim ntawm ua kom dub tom qab lub sijhawm, koj tuaj yeem muab cov tshuaj ntxuav tais diav tov rau ntawm daim ntaub mos muag los so nws, thiab koj tuaj yeem rov kho nws mus rau lub xeev qub. Txwv tsis pub, koj tsuas yog yuav cov khoom sib txuas, los yog tau plated nrog cov hniav zoo nkauj Los yog qhov dawb huv ntawm kub tsis txaus, nyob deb dua li qhov kub plating tiag hauv kev ua tau zoo thiab tus nqi.
