Izimpawu zezwe namasampuli egolide

Ukuthenga ubucwebe begolide ngokuvamile kuhilela izindleko ezinkulu. Sekungamakhulu eminyaka, bekuyinsimbi eyigugu kakhulu - ibiwuphawu lwamandla, ingcebo kanye nesikhundla esiphakeme emphakathini. Igolide elihlanzekile lithambile kakhulu, ngakho-ke ama-alloys egolide asetshenziselwa ukwenza ubucwebe, i.e. ingxube yegolide elihlanzekile nezinye izinsimbi, okuholela kumasampuli ahlukahlukene egolide. Esihlokweni esilandelayo, sizochaza ukuthi isampula yegolide siyini futhi sichaze izimpawu zombuso. 

Ukulingwa kwegolide 

Ukulingwa kwegolide inquma okuqukethwe kwegolide elihlanzekile ku-alloy okwenziwa ngayo ubucwebe. Kunezinhlelo ezimbili zokunquma inani legolide elisetshenzisiwe. Okokuqala uhlelo lwemethrikhi, lapho okuqukethwe kwensimbi kunqunywa ku-ppm. Isibonelo, inhlawulo engu-0,585 isho ukuthi okuqukethwe kwegolide kwento kungama-58,5%. Okwesibili uhlelo lwe-caratlapho ubucwebe begolide bulinganiswa ngamakharati. Igolide elihlanzekile kwakucatshangwa ukuthi 24 carats, ngakho 14 carat igolide iqukethe 58,3% igolide elimsulwa. Njengamanje kukhona izivivinyo zegolide eziyisikhombisa ePoland futhi kubalulekile ukuqaphela ukuthi azikho izivivinyo eziphakathi nendawo. Ngakho yiziphi izivivinyo zegolide eziyinhloko? 

Ukuhlolwa kwe-PPM:

999 ubufakazi - into iqukethe 99,9% igolide elimsulwa.

960 ubufakazi - into iqukethe 96,0% igolide elimsulwa.

750 ubufakazi - into iqukethe 75,0% igolide elimsulwa.

585 ubufakazi - into iqukethe 58,5% igolide elimsulwa.

500 ubufakazi - into iqukethe 50,0% igolide elimsulwa.

375 ubufakazi - into iqukethe 37,5% igolide elimsulwa.

333 ubufakazi - into iqukethe 33,3% igolide elimsulwa.

Ukuqaphela ubuhle begolide akufanele kube inkinga enkulu kuwe - kufanele ifakwe emkhiqizweni. Lokhu kwenziwa ukuze umthengi angadukiswa umdayisi ongenanembeza. Isampula elihlanganisiwe legolide limakwe ngenombolo ukusuka ku-0 kuye ku-6, lapho: 

• 0 kusho ukuthi zama 999,

• 1 kusho ukuthi zama 960,

• 2 kusho ukuthi zama 750,

• 3 kusho ukuthi zama 585,

• 4 kusho ukuthi zama 500,

• 5 kusho ukuthi zama 375,

• 6 - ukuzama 333.

Ubufakazi begolide buvamise ukugaywa ezindaweni okunzima ukufinyelela kuzo, ngakho-ke uma unenkinga yokuthola uphawu, xhumana nomcwebi noma ubucwebe ongakusiza ukukhomba ubufakazi begolide.

Izimpawu zombuso

ukucwaswa kuwuphawu olusemthethweni oluvikelwe ngokusemthethweni oluqinisekisa okuqukethwe kwensimbi eyigugu emkhiqizweni. Ngakho-ke, uma sifuna ukwenza imikhiqizo ngegolide noma isiliva futhi sihlele ukuyithengisa ePoland, kufanele igxivizwe ngezitembu zombuso.

Uzothola itafula legolide elicolekileyo lapha.

Hlobo luni lwegolide ongalukhetha?

Amasampula egolide adume kakhulu angama-585 nama-333. Bobabili banabasekeli babo nabamelene nabo. Isivivinyo 585 inegolide elihlanzekile elengeziwe, ngakho intengo yalo iphakeme. Ngenxa yokuqukethwe kwegolide okuphezulu (ngaphezu kuka-50%), ubucwebe buyipulasitiki eyengeziwe futhi bujwayele izinhlobo ezihlukahlukene zokuklwebheka nokunye ukulimala kwemishini. Nokho, igolide liyinsimbi eyigugu kakhulu ekhuphuka kuphela ngenani. Igolide imizamo 333 ngakolunye uhlangothi, i-ductile encane futhi intengo yayo iphansi, kodwa ingaphela ngokushesha. Igolide lalokhu kuhlolwa lilungele ubucwebe bansuku zonke ngenxa yokumelana nokulimala.

Amasampula egolide aye acwaningwa kanjani esikhathini esidlule?

Kakade ngekhulu lesi-XNUMX BC eGrisi lasendulo, amasampula egolide ahlolwa ngendlela efanayo nanamuhla. Kodwa-ke, kwakukhona ezinye izindlela - ekhulwini lesi-III BC, u-Archimedes wahlola umqhele wegolide we-Hiero, wawucwilisa emanzini futhi eqhathanisa nenqwaba yamanzi asusiwe kanye nesisindo somqhele, okusho ukuthi amaGreki. babewazi umqondo wokuminyana kwensimbi, okungukuthi, isilinganiso sobuningi bensimbi kuya kumthamo owuthathayo.

Igolide lingenye yezinsimbi eziyigugu kakhulu, ngakho abathengisi bavame ukuzama ukuqola. Ngaphambi kokuthenga, kufanele ufunde ukuthi ungabheka kanjani ubufakazi begolide futhi uthenge eziqinisekisiwe. ubucwebe izitolo.