SI1-SI2 B IBanga le-HPHT Indoda Yenziwe Ilitye leDayimane NgeeJewels
SI1-SI2 B IBanga le-HPHT Indoda Yenziwe Ilitye leDayimane NgeeJewels
- Yintoni iLab eKhulisiweyo yeDayimani
Umahluko phakathi kwedayimani yendalo kunye nelebhu ekhuliswe kwidayimani isuka kwindlela ezenziwe ngayo.ILab ikhule idayimani yenziwe ngumntu elebhu ngelixa idayimani zendalo zidalwe emhlabeni.
Iidayimani zokuqala eziyimpumelelo ezenziweyo zenziwe ngokulinganisa indalo kunye nemveliso yoxinzelelo oluphezulu/ubushushu obuphezulu (HPHT).Kukho iinkqubo ezintathu zokuvelisa ezisisiseko ezisetyenziselwa ukwenza iidayimani ze-HPHT: i-belt press, i-cubic press, kunye ne-split-sphere (BARS) press.Injongo yenkqubo nganye kukudala imeko-bume yoxinzelelo oluphezulu kakhulu kunye nobushushu apho ukukhula kwedayimani kunokwenzeka khona.Inkqubo nganye iqala ngembewu yedayimane encinci efakwa kwikhabhoni kwaye ibekwe phantsi koxinzelelo oluphezulu kakhulu kunye nobushushu bokukhulisa idayimani.
Enye indlela edumileyo yokukhulisa idayimani yokwenziwa yikhemikhali yokubeka umphunga (CVD).Ukukhula kwenzeka phantsi koxinzelelo oluphantsi (ngaphantsi koxinzelelo lwe-atmospheric).Ibandakanya ukondla umxube weegesi (ngokuqhelekileyo i-1 ukuya kuma-99 methane ukuya kwi-hydrogen) kwi-chamver kwaye iyahlulahlulwe kwi-radicals esebenzayo ngokwemichiza kwiplasma evutha zii-microwaves, i-filament eshushu, i-arcdischarge, itotshi ye-welding okanye i-laser.Le ndlela isetyenziswa kakhulu ekugqumeni, kodwa inokuvelisa iikristale enye iimilimitha ezininzi ngobukhulu.
2. Ukucaciswa kweDayimane yeLab eKhulisiweyo
| Ikhowudi # | IBanga | Ubunzima beCarat | Ukucaca | Ubungakanani |
| 04A | A | 0.2-0.4ct | VVS VS | 3.0-4.0mm |
| 06A | A | 0.4-0.6ct | VVS VS | 4.0-4.5mm |
| 08A | A | 0.6-0.8ct | VVS-SI1 | 4.0-5.0mm |
| 08B | B | 0.6-0.8ct | SI1-SI2 | 4.0-5.0mm |
| 08C | C | 0.6-0.8ct | SI2-I1 | 4.0-5.0mm |
| 08D | D | 0.6-0.8ct | I1-I3 | 4.0-5.0mm |
| 10A | A | 0.8-1.0ct | VVS-SI1 | 4.5-5.5mm |
| 10B | B | 0.8-1.0ct | SI1-SI2 | 4.5-5.5mm |
| 10C | C | 0.8-1.0ct | SI2-I1 | 4.5-5.5mm |
| 10D | D | 0.8-1.0ct | I1-I3 | 4.5-5.5mm |
| 15A | A | 1.0-1.5ct | VVS-SI1 | 5.0-6.0mm |
| 15B | B | 1.0-1.5ct | SI1-SI2 | 5.0-6.0mm |
| 15C | C | 1.0-1.5ct | SI2-I1 | 5.0-6.0mm |
| 15D | D | 1.0-1.5ct | I1-I3 | 5.0-6.0mm |
| 20A | A | 1.5-2.0ct | VVS-SI1 | 5.5-6.5mm |
| 20B | B | 1.5-2.0ct | SI1-SI2 | 5.5-6.5mm |
| 20C | C | 1.5-2.0ct | SI2-I1 | 5.5-6.5mm |
| 20D | D | 1.5-2.0ct | I1-I3 | 5.5-6.5mm |
| 25A | A | 2.0-2.5ct | VVS-SI1 | 6.5-7.5mm |
| 25B | B | 2.0-2.5ct | SI1-SI2 | 6.5-7.5mm |
| 25C | C | 2.0-2.5ct | SI2-I1 | 6.5-7.5mm |
| 25D | D | 2.0-2.5ct | I1-I3 | 6.5-7.5mm |
| 30A | A | 2.5-3.0ct | VVS-SI1 | 7.0-8.0mm |
| 30B | B | 2.5-3.0ct | SI1-SI2 | 7.0-8.0mm |
| 30C | C | 2.5-3.0ct | SI2-I1 | 7.0-8.0mm |
| 30D | D | 2.5-3.0ct | I1-I3 | 7.0-8.0mm |
| 35A | A | 3.0-3.5ct | VVS-SI1 | 7.0-8.5mm |
| 35B | B | 3.0-3.5ct | SI1-SI2 | 7.0-8.5mm |
| 35C | C | 3.0-3.5ct | SI2-I1 | 7.0-8.5mm |
| 35D | D | 3.0-3.5ct | I1-I3 | 7.0-8.5mm |
| 40A | A | 3.5-4.0ct | VVS-SI1 | 8.5-9.0mm |
| 40B | B | 3.5-4.0ct | SI1-SI2 | 8.5-9.0mm |
| 40C | C | 3.5-4.0ct | SI2-I1 | 8.5-9.0mm |
| 40D | D | 3.5-4.0ct | I1-I3 | 8.5-9.0mm |
| 50A | A | 4.0-5.0ct | VVS-SI1 | 7.5-9.5mm |
| 50B | B | 4.0-5.0ct | SI1-SI2 | 7.5-9.5mm |
| 60A | A | 5.0-6.0ct | VVS-SI1 | 8.5-10mm |
| 60B | B | 5.0-6.0ct | SI1-SI2 | 8.5-10mm |
| 70A | A | 6.0-7.0ct | VVS-SI1 | 9.0-10.5mm |
| 70B | B | 6.0-7.0ct | SI1-SI2 | 9.0-10.5mm |
| 80A | A | 7.0-8.0ct | VVS-SI1 | 9.0-11mm |
| 80B | B | 7.0-8.0ct | SI1-SI2 | 9.0-11mm |
| 80+A | A | 8.0ct + | VVS-SI1 | 9mm+ |
| 80+B | B | 8.0ct + | SI1-SI2 | 9mm+ |
3. Imibuzo rhoqo
- Umbuzo: Ingaba yidayimani yokwenyani okanye akunjalo? A: Yidayimani yokwenyani, kodwa ikhuliswe elebhu, hayi ukulungelelaniswa kwendalo.
B. Q: Lithini ixabiso lale dayimani ilinywa kule lebhu xa ithelekiswa nezendalo?
A: Yi-30-70% engaphantsi kunendalo enye kubunzima obuhlukeneyo kunye nokucaca.
C. Q: Ngaba unokwenza ngokwezifiso ukusika idayimani?
A: Ewe, sinokwenza ngokwezifiso ukusika idayimani ngokwemfuno yakho.
D. Q: Uthini umahluko phakathi kweBanga A kunye neBanga B
A: IBakala A line-VS, i-VVS ecacileyo, lo gama iBakala B linengcaciso ye-SI1-SI2, kwelinye igama, iBakala A lisulungekile ngaphezu kweBakala B.
E. Q: Lithini ixesha lomyalelo wokukhokela
A: Uninzi lwesayizi luya kuthunyelwa kwiintsuku zokusebenza ze-3-5.
