925 Ubucwebe besiliva

Ubucwebe besiliva buyizinhlobo ezivame kakhulu zobucwebe obuthengwa abantu. Kusukela kumasongo, izindandatho, amacici kuya kwizintelezi, imihlobiso elengayo, njll., ungathola ubucwebe besiliva bugqokwa kuzo zombili izikhathi ezikhethekile, nezingavamile. Ubucwebe besiliva benza izipho ezinhle zosuku lokuzalwa nezokugubha usuku.

E-United States, i-US Federal Trade Commission (FTC) ithe isiliva ngeke lithengiswe njengesiliva, isiliva elicwengekileyo, i-sterling, isiliva eliqinile, noma ngesifinyezo esithi Ster., ngaphandle uma sihlanganisa okungenani isiliva elimsulwa elingu-92.5%. Kodwa, liyini leli siliva le-925? Kungani kuyimpoqo ukuthenga isiliva kuleli banga?

Yini?

Isiliva elihlanzekile (isiliva elingu-99%) liyathandeka, lithambile, futhi lithambile kakhulu. Ukuthamba kwayo kwenza kube lula ukusebenza ngakho. Nokho, ibuye iklwejwe kalula. Ngendlela ehlanzekile, isiliva iyinsimbi ehloniphekile futhi ibiza kakhulu.

Nokho, njengoba iklwejwa kalula, ayifaneleki ukwenza izinto ezisebenzayo. Ngaphakathi kokusetshenziswa okukodwa noma okubili, iba nokubukeka okudlile nokukhubazekile. Ngakho, kwakhiwa i-alloy yesiliva.

I-92.5% yensimbi yesiliva ixubene nensimbi yethusi engu-7.5% ukuze ithole isiliva esingu-925 sesiliva. Ithusi elingu-7.5% elingeziwe linikeza isiliva amandla adingekayo. Njengoba kuphela i-7.5% yethusi yengezwa, nokuqukethwe okusele kwe-92.5% njengesiliva, i-ductility kanye ne-charm yensimbi yesiliva igcinwa.

Ngaphandle kwethusi, ezinye izinsimbi ezifana ne-germanium, i-platinum, ne-zinc nazo zingangezwa esiliva ukwenza isiliva elihle kakhulu. Kodwa-ke, ngokuqondene namazinga embonini, isiliva le-925 sterling lilungiswa kuphela ngokungeza insimbi yethusi.

Isiliva le-925 sterling alibizi njengesiliva elihlanzekile futhi lithengeka kakhulu. Isetshenziselwa ukulungisa izinhlobo ezihlukahlukene zobucwebe besiliva njengamacici, imigexo, izindandatho, izindandatho zekhala, amasongo, ama-anklets, njll.

Ubucwebe obuwumphumela buhlala isikhathi eside futhi bumelana nobucwebe besiliva obuhlanzekile. Ngaphezu kwalokho, lapho amatshe ayigugu efakwe ku-, inani layo likhuphuka nakakhulu.

Uzothola izitini ezimbalwa ezinedumela elihle kanye nezitolo eziku-inthanethi ezithengisayo. Babhekelela amakhasimende amakhulu afuna ubucwebe obuthengekayo.

Ngokuvamile, isaphulelo sika-925 sesiliva siyatholakala futhi esitholakala ngenani elishibhile. Kukhona zonke izinhlobo zemiklamo etholakalayo futhi uma ungakajabuli, ungaba nobucwebe bakho benziwe ngokwezifiso ukuze uvumelane nokunambitha kwakho nokuthandayo.

Insimbi eyisiliva njengegolide iyinsimbi esezingeni eliphezulu engaphenduli noma ikhiphe oksidi uma ihlangana nama-sulfide emkhathini. Kodwa-ke, njengoba ubucwebe esibuthengayo , masingakhohlwa ukuthi iqukethe ithusi.

Izinsimbi ezifana nethusi, i-zinc, ne-nickel zikhishwa ama-sulfide emkhathini bese ziba mnyama. Kuyi-oxidation yethusi ebucwebeni okwenza ucezu lobucwebe besiliva lube mnyama futhi lungcole ngemva kwesikhathi esithile. Ukuphuzi kwesiliva kuwukusabela okubuyisela emuva, futhi ukukhanya kungabuyiselwa ngokupholisha insimbi.

Ukuze wehlise ijubane izinga lobucwebe bakho obusiliva bube phuzi, gcina ubucwebe endaweni emanzi neswakeme. Lokhu kungenziwa ngokuwagcina ezitsheni ezingangeni moya noma ezikhwameni zokuvikela ukungcola.

Ngaphezu kwalokho, ngemva kokuzisebenzisa zonke, zihlanze ngendwangu. Uthola izindwangu zokuhlanza ezikhethekile ngezinhloso ezinjalo, ezingcono kunezindwangu ezivamile. Ungasebenzisa futhi noma isiphi isihlanzi sobucwebe besiliva esikhazimulayo noma ipholishi yesiliva eyenziwe ekhaya ukuze ubuyise i-sheen ngezikhathi ezithile.

Abantu bebegqoke ubucwebe besiliva kusukela ngo-900 BC. ifanele wonke umuntu kungakhathaliseki ubudala noma ubulili. Ukukhanga kwayo kwakudala akuphumi esitayeleni! 925 isiliva iyindinganiso ebekwe izingcweti ukukhombisa isiliva sekhwalithi engcono kakhulu. Ngakho, ngokuzayo lapho uyolanda ubucwebe besiliva qiniseka ukuthi !