Nyob rau hauv txhua lub hnub nyoog kub yog lub cim ntawm kev nplua nuj thiab lub hwj chim. Cov tub lag luam, conquerors thiab emperors adored nws. Jewelers nyiam kub rau nws cov pliability hauv kev ua, durability thiab ci ntsa iab xim. Tag nrho cov pob zeb muaj nuj nqis yog sib haum xeeb nyob rau hauv kub. Ntau tus hnav cov hniav nyiaj hniav kub tag nrho lawv lub neej thiab dhau mus ua ib qho qub txeeg qub teg. Nws nrhiav tau ib qho kev kho mob tshwj xeeb uas pab kho cov pob qij txha. Cov ntsiab lus ntawm cov hlau no yog suav nrog hauv cov tshuaj homeopathic npaj. Ntau tus neeg kawm xav paub txog cov lus nug: "Tus qauv zoo tshaj plaws ntawm kub yog dab tsi?".
Vim li cas koj yuav tsum hnav kub?
Nyob rau hauv cov teb chaws sab hnub tuaj, cov kws tshaj lij tau piv lub zog zoo ntawm cov hlau no nrog lub zog ntawm lub hnub, uas tseem ua kom muaj zog, ua kom muaj zog thiab kev xav. Nws yog ib qho tseem ceeb tshwj xeeb tshaj yog hnav cov hniav nyiaj hniav kub rau cov neeg uas muaj ntshav siab tsawg uas muaj kev nyuaj siab.mob. Hauv cov tub ntxhais hluas, nws tsis tas yuav tsum hnav cov hniav nyiaj hniav kub ua los ntawm cov hlau no, vim tias twb muaj lub zog thiab lub zog txaus lawm.
Kub yog ib qho khoom plig tseem ceeb heev, kev nthuav qhia uas txhais tau hais tias kev sib hlub ntev los yog xav kom muaj kev vam meej thiab ruaj khov. Tsis muaj qhov xav tsis thoob cov niam txiv hluas sib pauv kub tshoob rings nyob rau hauv lub tshoob nrog. Cov neeg nplua nuj txaus siab rau tus kheej tau muab kub ua ib qho cim ntawm kev hwm thiab kev lees paub ntawm lawv txoj kev loj hlob. Cov hniav nyiaj hniav kub tshwj xeeb tshaj yog nyiam los ntawm cov poj niam, lawv tsim nyog rau cov plaub hau ncaj ncees, tsaus nti, plaub hau ncaj thiab txawm tias liab plaub hau zoo nkauj.
Tim cov hlau muaj nuj nqis
Hauv cov hniav nyiaj hniav kub, kub tsis yog siv rau hauv nws daim ntawv ntshiab, ntau yam impurities ntxiv rau nws. Hauv qhov no, hauv khw muag khoom koj tuaj yeem pom cov hniav nyiaj hniav kub ua los ntawm dawb, daj, liab, sawv kub. Feem ntau cov additives (ligatures) yog nyiaj thiab tooj liab. Nrog lawv, cov hlau tau txais lub zog tshwj xeeb.
Tsis ntev los no, kub dawb tau txais kev nyiam tshwj xeeb, tshwj xeeb ntawm cov tub ntxhais hluas. Cov xim no ua tiav los ntawm kev ntxiv nyiaj, palladium, platinum rau cov hlau. Lub alloy ntawm kub thiab platinum yog tshwj xeeb tshaj yog muaj nuj nqis, vim hais tias ob hlau yog kim heev. Nws yog ib qho muaj zog heev alloy, muaj xim dawb, thiab ci zoo. Dawb kub yog qhov tsim nyog tshaj plaws rau cov hniav nyiaj hniav kub nrog cov pob zeb zoo nkauj, tshwj xeeb tshaj yog pob zeb diamond.
Daj kub yog suav tias yog cov tsoos tsho tshaj plaws. Nws kuj muaj tooj liab thiab nyiaj. Yog tias ntau tooj liab ntxiv rau cov hlau, ces nws yuav tau txais lub suab liab, thiab yog tias muaj nyiaj ntau ntxiv, ceskoj tuaj yeem tau txais qhov ntxoov ntxoo zoo nkauj.
Vim cov ntsiab lus siab ntawm tooj liab hauv cov hlau, cov kub liab tau txais. Ib zaug nws tau nrov heev, tab sis tam sim no daj yog nyob rau hauv cov hlau lead. Qhov siab dua cov ntsiab lus tooj liab, qhov redder lub alloy tig tawm, nws tuaj yeem yog 50% txog 50%.
Ib txhij ntxiv ntawm tooj liab thiab nyiaj rau ib qho alloy muab cov xim liab. Tsuas yog cov xim zoo li no uas ntau tus poj niam zoo nkauj poob rau hauv kev hlub nrog, cov hniav nyiaj hniav kub nrog lub ntsej muag pinkish zoo nkaus li maj mam.
Green kub yog cov hlau tsis tshua muaj heev. Nws yog tau los ntawm kev sib tov kub, nyiaj thiab ib tug me me ntawm tooj liab los yog cadmium. Cov feem pua ntawm cov khoom xyaw yuav txawv.
Oddly txaus, lawv kuj ua grey thiab xiav kub. Nws yog tau los ntawm kev ntxiv steel thiab nyiaj. Tab sis kev sib xyaw nrog cob alt thiab chromium tso cai rau koj kom tau txais cov kub kub. Tam sim no nws yog lub sij hawm los nrhiav seb dab tsi yog qhov zoo tshaj plaws qauv ntawm kub.
Koj xav paub dab tsi txog cov qauv?
Nws yog ib qho tseem ceeb kom paub tias kub tuaj yeem ua lag luam thiab cov hniav nyiaj hniav kub. Rau ib qho thiab lwm qhov, ib qho kev xaiv digital yog tsim - ib qho qauv. Nws yog los ntawm nws tias lub peev xwm ntawm qhov chaw ntawm cov kub ntshiab hauv 1000 qhov ntawm cov txiaj ntsig tau txiav txim siab.
Yog koj teb cov lus nug: "Qhov txheej txheem kub zoo tshaj yog dab tsi?", ces koj yuav tsum paub txog tus qauv siab tshaj plaws. Nws yog 999 pov thawj, nws yog 100% kub, uas yog khaws cia rau hauv ingots. Cov hlau zoo li no tsis haum rau cov hniav nyiaj hniav kub, vim tias nws tsis yooj yim heev, txawm tias nws ci zoo nkauj.
Nws tau teev saum toj no uas cov hlau ntxiv rau kub kom tau txais cov alloys siv hauvkev lag luam hniav nyiaj hniav kub. Qhov qis tshaj fineness ntawm kub hniav nyiaj hniav kub yog 375. Qhov no txhais tau hais tias cov hlau no muaj 37.5% kub. Nws yog ua raws li 500, 583 thiab 585 cov qauv, lawv yog cov feem ntau. Thiab qhov zoo tshaj plaws qauv ntawm kub yog dab tsi? Qhov siab dua cov ntsiab lus kub hauv cov hlau, qhov siab dua qhov zoo. Tsis tshua muaj ntau, tab sis tseem, 750 cov qauv raug tsim. Qhov siab tshaj plaws rau cov hniav nyiaj hniav kub yog 958 xeem, cov hlau no yog 95.8% kub. Txhua yam khoom raug muag nrog lub cim tshwj xeeb, uas qhia txog cov qauv. Nws tuaj yeem pom los ntawm iav tsom iav.
Ntau tus neeg siv hais tias 585 kub yog qhov zoo tshaj plaws karat rau lawv. Cov khoom tsim los ntawm nws muaj tus nqi tsim nyog thiab hnav tsis kam (uas tsis tuaj yeem hais txog cov hniav nyiaj hniav kub ua los ntawm cov hlau qib siab, uas yog nquag khawb thiab pob).
Nkauj kub dawb
Qhov kub dawb twg muaj qhov zoo tshaj plaws? Qhov no yog qhov teeb meem tseem ceeb heev, vim tias cov kub dawb tau dhau los ua dav thiab xav tau. Thawj thawj zaug lawv kawm tau txais nws nyob rau hauv peb caug xyoo. Nws zoo ib yam li nyiaj, tab sis muaj luster ntau dua. Niaj hnub no, kub dawb yog lub cim ntawm sophistication thiab saj zoo. Nws yuav tsum tau muab sau tseg tias dawb kub yog kim heev, vim hais tias nws alloy muaj cov khoom kim heev hlau. Nws yuav tsum tau hais tias cov kub dawb muaj qhov zoo ib yam li qhov seem, tab sis tseem muaj qhov zoo ntawm 750 thiab 958 yog cais tawm.
kub dawb tau li cas?
Dawb kub ntawm tus qauv zoo tshaj plaws, uas yog, 750, yog tsim los ntawm nyiaj, platinum, palladium, thiab qee zaum npib tsib xee. Alloy ntawm qhov qauv nokim heev. Cov khoom ntawm qhov kev ntsuam xyuas no ntxiv coated nrog dawb rhodium, tom qab uas lawv saib txawm brighter.
Jewellery ua los ntawm 375 dawb kub muaj tus nqi qis tshaj. Nws muaj nickel, nyiaj thiab zinc. Cov khoom siv hauv qab no yog tsim los rau cov neeg siv khoom siv.
kub zoo nyob qhov twg?
Ntau lub teb chaws ua kub hauv lawv cov khoom lag luam hniav nyiaj hniav kub. High-qib kub (750) yog tsim los ntawm Tuam Tshoj. Tsawg zoo yog Turkish kub. Italian thiab Arabic kub muaj nuj nqis heev. Russia tsim cov nyiaj kub kub ntau heev.
