lab ekhulile idayimane izindandatho
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Ilebhu engcono kakhulu eyakhiwe izindandatho zokubandakanya zedayimane ze-DEF Umbala
Ngakolunye uhlangothi, amadayimane akhule elebhu, awaphinda ncamashi amadayimane emvelo futhi akhiqizwa abese ethengiswa kabusha abahlinzeki abaningi bedayimane “be-inthanethi”.Laba bahlinzeki basebenza “njengabadayisi” phakathi kohwebo nawe khasimende, ngaphandle kokutshala imali kumadayimane ngokwawo.
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I-HPHT CVD ilebhu yamadoda ekhulile idayimane indandatho engu-1 carat 2 carat
Amadayimane akhule elebhu ayafana ngamakhemikhali, ngokubona, nangokomzimba njengamadayimane ambiwa phansi, akhule ngaphansi komhlaba—awabeka phakathi kwamatshe ayigugu afiswa kakhulu futhi ahlonishwa kakhulu emhlabeni.Lawa matshe ayigugu angavamile futhi angavamile adalwe ukuze abe nombala ofanayo nokucaca njengedayimane elimbiwayo elisezingeni eliphezulu.
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I-VS VVS ilebhu yangokwezifiso ekhulile izindandatho zokuzibandakanya zedayimane Ezishibhile
Idayimane elikhule elebhu namuhla lakhiwe kusetshenziswa izindlela ezimbili - i-CVD ne-HPHT.Ukudala okuphelele kuvame ukuthatha isikhathi esingaphansi kwenyanga.Ngakolunye uhlangothi, indalo yedayimane yemvelo ngaphansi koqweqwe lomhlaba ithatha izigidigidi zeminyaka.
Indlela ye-HPHT isebenzisa eyodwa yalezi zinqubo ezintathu zokukhiqiza - umshini wokunyathelisa webhande, umshini we-cubic press kanye nomshini wokuhlukanisa i-sphere.Lezi zinqubo ezintathu zingakha ingcindezi ephezulu kanye nemvelo yokushisa lapho idayimane ingakhula khona.Iqala ngembewu yedayimane efakwa kukhabhoni.Idayimane libe selivezwa ku-1500°Celsius bese licindezelwa libe ngu-1.5 pounds per inch square.Ekugcineni, ikhabhoni iyancibilika bese kwakhiwa idayimane lalebhu.
I-CVD isebenzisa ucezu oluncane lwembewu yedayimane, ngokuvamile oludalwe kusetshenziswa indlela ye-HPHT.Idayimane lifakwa ekamelweni elishiselwe cishe ku-800°C eligcwele igesi ecebile ngekhabhoni, njengeMethane.Amagesi abe eseyi-ion ku-plasma.Ikhabhoni emsulwa evela emagesini inamathela kudayimane futhi icwebezelwe.
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Izindandatho zedayimane ezikhule elebhu ezithengekayo ze-Brilliant Cut ziyathengiswa
Idayimane elikhule elebhu, elaziwa nangokuthi amadayimane adalwe elebhu, amadayimane akhuliswa ngaphakathi kwendawo yaselabhorethri kusetshenziswa ubuchwepheshe obusezingeni eliphezulu obuphindaphinda izimo zemvelo lapho amadayimane angempela akhula ngaphansi kwawo ngaphansi komhlaba.Ngenxa yalokho, amadayimane akhule elebhu abonisa izici ezifanayo zomzimba, ezibonakalayo namakhemikhali.Ngenxa yalokho, amadayimane akhule elebhu athathwa njengedayimane langempela, ngokungafani nezifanisi zedayimane namadayimane okwenziwa, njenge-cubic zirconia noma i-moissanite.Lezo azifani ngokubona namakhemikhali namadayimane ambiwe, futhi athengisa ngamanani aphansi kakhulu kunamadayimane atshalwe elebhu.
