Platinum yog ib txwm dawb hauv cov xim thiab yog qhov kim tshaj plaws ntawm txhua cov khoom muaj nqis. Hauv lub ntiaj teb niaj hnub no, platinum hniav nyiaj hniav kub yog lub cim ntawm kev hwm thiab kev ntseeg siab. Yuav ua li cas tsis txhob yuam kev thaum xaiv cov hniav nyiaj hniav kub los ntawm cov khoom siv no?
Cov Lus Qhia
Kauj ruam 1
Thaum yuav ib daim ntawm cov hniav nyiaj hniav kub, nco ntsoov saib lub hom thawj. Cov cim no muaj cov duab sib txawv rau cov hlau sib txawv uas muaj nqi. Rau kub thiab platinum, hniav hlau yog siv. Tsis tas li, koj yuav pom 900, 950 lossis 850 pom zoo ntawm cov khoom lag luam platinum. Hos cov nyiaj kub yog 375, 500, 583, 750, 958.
Kauj ruam 2
Yuav kom paub qhov txawv platinum los ntawm kub dawb, nco ntsoov tias cov platinum cov khoom hnyav dua. Rau kev sib piv, tuav hauv koj txhais tes ob kab tshoob, ib qho ua los ntawm platinum thiab ib qho yog kub. Platinum yuav tsum txog ib nyhav peb.
Kauj ruam 3
Nws muaj peev xwm txiav txim siab tias ib daim ntawm cov hniav nyiaj hniav kub yog platinum los ntawm hnav nws. Platinum yog cov hlau tsis ruaj, yog li, cov hniav nyiaj hniav kub uas ua los ntawm nws tsis puas, qhov kev coj ua tsis khawb lossis hnav. Thaum kub dawb nws muaj nws cov xim vim muaj ntau yam impurities lossis rhodium plating. Yog li ntawd, dhau sijhawm, cov khoom lag luam ua los ntawm cov hlau zoo li no tuaj yeem tau txais qhov xim grey-daj, thiab txheej yuav hnav tawm ntawm qhov chaw. Nyiaj, tis rau nws sab nraud zoo ib yam rau platinum, yog hlau muaj hlau ntshiab.
Kauj ruam 4
Yog tias koj tsis ntshai kev sim tshuaj, koj tuaj yeem ua cov kev sim hauv qab no tom tsev. Thov siv 1 poob kua kub chloride tov rau qhov huv huv ntawm cov khoom. Txheeb xyuas qhov tshwm sim hauv 40 vib nas this. Txoj kev daws teeb meem no yuav tsis muaj nqis rau ntawm platinum. Lub chaw ntsuab tsaus yuav tshwm rau ntawm cov nyiaj.
