Kub Ceev txiav txim raws li cov kev ceev ntawm tus qauv

Cov kev ceev ntawm kub - ib qho ntawm lub cim lub cev tus yam ntxwv ntawm cov hlau. Vim hais tias nws yog mos siv nyob rau hauv kev xyaum ntxiv rau nws lwm yam co los txhim kho lub hauj zog.

Nyob rau hauv hniav nyiaj hniav kub, raws li peb paub, peb siv dragmetalpov alloys nyob rau hauv sib txawv proportions. Net cov ntsiab lus ntawm precious hlau nyob rau hauv lub hlau yog ntsuas nyob rau hauv thousandths ntawm chav nyob: 585-carat kub - ib tug hlau nrog ib tug cov ntsiab lus ntawm 585 qhov chaw ntawm dawb huv kub nyob rau hauv 1000 tauj Lub coj daim duab yog muab tso rau hauv cov khoom. Raws li, nrog rau qhov sib ntxiv ntawm lwm yam co kub ceev, uas yog, ib tug hlau hloov. Nyob rau lub hauv paus ntawm qhov ntsuas no nyob rau hauv tej thaj chaw tau txais kev kub khoom seb lawv authenticity thiab kev tsimnyog ntawm cov thov qauv.

nta kub

Precious kub - nws yog ib tug hnyav hlau. Nws ceev yog nyob rau hauv cov ntshiab daim ntawv 19.621 kg / m³. Yuav kom qhuav fact perceive kom meej li meej tau, muab ib tug me me hlaws ntawm ntshiab hlau nrog ib lub cheeb ntawm 46 hli. Nws loj yog sib npaug zos rau 1 kilogram.

High ceev ntawm kub yog siv nyob rau hauv nws ntau lawm: nws yog ua tsaug rau nws nuggets thiab maj tawm hauv cov xuab zeb yuav tsum ntxuav rau pob zeb.

Kub ceev nyob hauv cov ntshiab daim ntawv (uas yog xam yuav 999.99-th qauv) ntawm 19,3 g / cm ^3. Txwm, nws muaj ib tug me ntsis qis ceev: 18-18,5 g / cm ^3. Nyob rau hauv alloys ntawm txawv kuaj, qhov no xam lub. Hais txog lawv peb yuav piav qhia txog nram qab no.

Cov kev ceev ntawm kub alloys

Raws li peb paub ntau tshaj ntawm cov tsev kawm ntawv xyoo no, cov kev ceev ntawm cov khoom - lub cev vaj tse, txhais tau hais tias loj ib chav tsev ntim npaum li cas. Nws yog ntsuas los ntawm tus piv ntawm nws qhov hnyav thiab qhov luaj li cas.

Rau haum rau siv nyob rau hauv lub jewellery hlau kub tov nrog tooj liab, silver, npib tsib xee, platinum, palladium thiab lwm yam co xws li cov noble los yog tsis. Peb npaj mus rau lub tib cov ntaub ntawv ceev kub alloys txawv kuaj.

Cov feem nrov, pheej yig thiab txig suited mus ua hauj lwm nrog nws, - 585-Kuv qauv. Cov kev ceev ntawm lub kub qib 585 - 12,5-14 g / cm ^3. Cov ntas yog qhia thiab cov 583rd qauv (Soviet qauv).

Yuav kom npib kuaj, 900 th thiab 917 th, nuj nqis yog, ntsig txog, 17,10-17,24 g / cm ³ thiab 17,34-17,83 g / cm ^3.

Raws li ib tug heev qauv nyob rau hauv hniav nyiaj hniav kub 750-Kuv muaj ib tug ntom ntawm 14,5-17,5 g / cm ^3.

Cov kev ceev ntawm tsawg-qib kub, 375th qauv - 11,54-11,56 g / cm ^3.

Thaum kawg, xav seb lub lwm yam precious hlau - silver. Nws yog ho sib zog tshaj kub thiab nyiaj hlau ceev no kuj tsawg dua.

Yog li, cov kev ceev ntawm cov khoom muab faib nyob rau hauv lub hlau 925 yog 10,36 g / ^cm3. Ob txhais pab, 875-th xeem - 10,28 g / ^cm3.

kub thiab nyiaj ceev - ib tug tseem ceeb qhia hais tias yuav pab txiav txim seb lub ntsiab lus ntawm lub alloy ntshiab precious hlau siv ntau yam kev kawm. Ib tug ntawm lawv yog siv tau, yuav tsum tau tham tom qab.

Hydrostatic hom: txhais tau lub fineness ntawm lub precious

Nyob rau hauv tsev uas paub txhij txhua nyob rau hauv tau txais kub hniav nyiaj hniav kub, siv ib tug ntau yam ntawm txoj kev sib txawv los mus txiav txim thiab paub meej tias qhov kev kuaj coj kub. Raws li cov kev txawj ntse uas cov kub - ib tug hnyav hlau nrog ib tug kub ceev, qhia mus rau qhov kev siv ntawm hydrostatic txoj kev.

Nws yog raws li nyob rau hauv kev txiav txim rau qhov sib txawv nyob rau hauv hnyav thaum ntsuas kev ua tau zoo tawm sab nraud, nyob rau hauv ib txwm tej yam kev mob thiab nyob rau hauv tej yam ua kua paub ceev.

Peb hais tias ib zaug: no txoj kev ntawm kev soj ntsuam kub yog tsim tsuas yog rau kev ncaj ncees ntawm cov khoom, tsis muaj pob zeb thiab lwm yam inserts ua los ntawm lwm yam ntaub ntawv. Nws tseem yog tsis yooj yim sua kom tau txaus ntaub ntawv rau lub hollow khoom uas muaj ntau tsiv chaw.

Mus nqa tawm hydrostatic uas kub khoom xav tau hniav nyiaj hniav kub dos, ntsuas khob (los yog lwm yam tshab), nuv ntses kab los yog nyias thread. Cov kua paub ceev feem ntau siv distilled dej. Ua ntej, lub golden khoom tiv kev txom nyem los ntawm cov ib txwm txoj kev, cov ntaub ntawv yog kaw. Ces muab tso rau hauv lub dos nrog ib tug iav ntawm dej thiab tau sau ntau tshaj ib nrab tag nrho, qhov nqi koj tshuav readings yog tshem (nyob rau hauv scale yuav tsum pib dua tare muaj nuj nqi). Peb golden khoom dai rau ntawm txoj kab, uas nws txo qis mus rau hauv cov dej kiag li, tsis kov hauv qab thiab phab ntsa ntawm lub khob. Cov tes taw hnyav li no kuj kaw.

zoo siv ntawm hydrostatic ceev tswvyim rau tus tsom xam, txij li thaum miscalculation manually yuav coj ntev npaum li cas thiab tsis yog li ntawd muaj tseeb.

tshawb pom

Yog li ntawd, nyob rau hauv no tsab xov xwm peb soj ntsuam cov kev ceev ntawm kub - lub precious hlau, uas peb txhua tus nyob rau hauv nws lub neej ntsib thiab tseem fim. Saib lub ntsab lug saum toj no cov ntaub ntawv raws li nram no: kev ceev ntawm lub nrov tshaj plaws kub qauv, 585 feeb, yog 12,5-14 g / cm ^3, lwm yam alloys - tsawg los yog ntau tshaj, ntsig txog.

Nyob rau kub hlau ceev ntawm tus qauv yuav tsum tau txiav txim, uas yog indicative ntawm cov ntsiab lus ntawm cov tseem kub nyob rau hauv lub hlau. Cov hom kev kawm uas yog siv nyob rau hauv tsev txog kev noj kub.

Peb cia siab tias peb tsab xov xwm tau tuav thiab muab rau koj ib tug ob peb exciting feeb. Cia koj lub thawv yuav tsuas muaj high-qib kub!