Nickel vs Chrome
Lo lus kev lag luam kiv puag ncig ua rau peb nco txog ob yam, thiab lawv yog roj thiab hlau. Kev siv cov hlau rau ntau lub hom phiaj yog qhov qhia meej tias peb ua tau zoo npaum li cas ntawm kev siv tshuab. Cov hlau muaj cov khoom tshwj xeeb. Yog li ntawd, txhua yam ntawm cov hlau nyob hauv lub ntiaj teb tuaj yeem siv rau kev siv sib txawv. Raws li lub sijhawm dhau los, tib neeg pom tau tias kev sib xyaw ob lossis ntau dua hlau ua ke pab rov txhais lub tswv yim ntawm kev siv cov khoom siv. Lawv nrhiav tau cov alloys. Txawm niaj hnub no, hlau yog siv nyob rau hauv plating, txheej rau ib puag ncig rhiab khoom siv rau kev tiv thaiv, ntxiv ib tug tiav thiab saib. Nickel thiab Chrome yog ob hom hlau uas nrov yog hlau plating / txheej kev lag luam.
Nickel
Nickel yog d-block hlau uas muaj cov cim tshuaj Ni. Nws tus lej atomic yog 28. Cov tsos ntawm cov ntshiab Ni yog silvery dawb nrog me ntsis golden tinge rau nws. Nws yog ib qho nyuaj thiab tiv taus ntau yam ib puag ncig. Ib qho tseem ceeb feature yog cov khoom tiv thaiv corrosive vim qhov qeeb ntawm oxidation. Ni tau raug cais tawm thawj zaug thiab pom tias yog ib qho khoom siv los ntawm 1751 los ntawm Axel Fredrik. Cov chaw tsim khoom loj Ni yog nyob hauv Canada, Russia thiab Pacific cheeb tsam.
Vim qhov kev tiv thaiv corrosive Ni yog siv los ua phaj hlau thiab tooj dag. Nws kuj yog ib feem ntawm cov alloys xws li German nyiaj, uas muab ib tug silvery polish. Ni kuj tau siv los ua npib thaum yav dhau los txawm tias nws tau hloov nrog cov hlau pheej yig dua tam sim no. Qee tus neeg kuj qhia kev ua xua rau Ni, tshwj xeeb tshaj yog kev ua xua ntawm daim tawv nqaij. Tsuas yog plaub lub ntsiab lus yog ferromagnetic nyob rau hauv chav tsev kub, thiab Ni yog ib qho ntawm lawv. Sib nrug los ntawm nws cov ntawv thov hauv cov khoom siv hauv tsev, tsheb, Ni kuj tseem siv los ua kev lag luam catalyst hauv kev lag luam xws li margarine ntau lawm.
Chrome (Chromium)
Chrome yog lwm lub npe rau Chromium. Qhov no kuj yog d-block hlau. Nws muaj cov cim tshuaj Cr, thiab nws tus lej atomic yog 24. Chrome tshwm hauv cov hlau grey. Nws yog tawv thiab nkig. Cov hlau no kuj tuaj yeem ua polished heev thiab, yog li ntawd, siv los ua txheej txheej hauv ntau yam khoom siv hauv tsev thiab tsheb. Chrome kuj tuaj yeem tiv taus kub heev. Chromium yog, txawm li cas los xij, ib qho tshuaj lom thiab carcinogenic compound. Chromium cov chaw tsim khoom xav tau kev ntxuav ib puag ncig.
Chrome plating muab ci, iav zoo li tiav. Nws kuj tseem ruaj thiab tiv thaiv corrosion. Vim qhov ua tiav cov ntiv tes ua tiav, cov cim, cov dej me me thiab khawb tau pom tau zoo. Qhov no yog qhov shortcoming ntawm Chrome plating. Chrome yog siv los ua tooj liab thiab hlau. Nws kuj tseem siv los ua Nichrome alloy ua los ntawm Nickel thiab Chrome siv hauv cov phaj kub, qhov cub thiab hlau.
Nickel vs Chrome
• Nickel thiab Chrome (tseem hu ua Chromium) yog ob yam hlau sib txawv.
• Ob leeg yog siv rau hauv cov hlau plating. Nickel plating muab matt tiav, thiab Chrome muab daim iav zoo li ua tiav.
• Nickel nyiam discolor nrog lub sijhawm ntau dua li Chrome ua.
• Nickel plating tsis qhia ntiv tes, khawb thiab lwm yam rau qhov muag liab qab zoo li Chromium plating ua.
• Chromium/Chrome kim dua Nickel.
