I-Ruitai Kitchen Knives: INkulumbuso Umthombo Weemela zeKhitshi zesiNtu zaseTshayina
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I-Ruitai Kitchen Knives: INkulumbuso Umthombo Weemela zeKhitshi zesiNtu zaseTshayina
Ndiyakholelwa ukuba kwimbono yabahlobo abaninzi, i-ceramics, i-hard and brittle material, isoloko isetyenziselwa ukwenza izitya, i-tableware, i-tile, imihlobiso kunye nezinye iimveliso. Andazi ukuba uyayiqonda na into yokuba izinto ezenziwe ngeseramikhi zinokwenziwa zibe ziimela?Enyanisweni, iimela zeceramic zinembali yokuveliswa kwezinto eziphantse zibe likhulu.Iimela zeseramic ngoku ziphuhliswe zaba yimveliso enobuchwepheshe obukhule kakhulu, kwaye iintsapho ezininzi ngoku usebenzisa imela yeceramic.
Kwimimese yesinyithi yendabuko, nangona inokuhlangabezana nezona mfuno zokusika kubomi bentsapho, kusekho iintsilelo ezininzi.
Umzekelo, iimela zentsimbi kulula ukurusa kwaye azikwazi ukunxiba, emva kwexesha elide, kulula ukugqwala kwaye zibe buthuntu, nto leyo ephazamisa kakhulu kwiimeko ezininzi. Kuphantsi kwale meko ukuba iimela ze-ceramic zavela.
Izinto ezisetyenziselwa iimela ze-ceramic azikho i-ceramics ekhutshwe kumhlaba wendalo oqhelekileyo kubomi bethu, kodwa ii-ceramics ezikhethekileyo zanamhlanje ezenziwe ngokufanelekileyo.
Kwangowe-1912, amanye amazwe aseYurophu naseMelika asebenzisa i-alumina njengento ekrwada ukuvelisa iimela ze-alumina ceramic, kodwa ngenxa yokusebenza kwayo okuphantsi, ayizange yamkelwe luluntu. Kwadlula iminyaka engama-50 kamva apho abantu bavelisa imathiriyeli ye-alumina ehlanganisiweyo.Ukomelela kunye nokuqina kweemela ze-ceramic ezenziwe ngesi sixhobo kuye kwaphuculwa kakhulu, kwaye iimela ze-ceramic ziye zangena ngokuthe ngcembe kwindawo yokubona abantu ukususela ngoko. Ekuqaleni kweminyaka yoo-1980, iimela ze-silicon oxide zeceramic zazisele ziphumile. Le mathiriyeli yeemela zeceramic yayisondelelene kakhulu nemathiriyeli yeemela zeceramic yale mihla, kwaye ukuthengiswa kweemela zeceramic kumazwe aphuhlileyo kwaqala ukunyuka ngokuqhubekayo.
Ngophuhliso oluqhubekayo lweteknoloji yokwenziwa, izinto ezininzi zokwenziwa zisetyenziselwa ukwenza iimela ze-ceramic. Iimela zeceramic eziqhelekileyo ngoku kwimarike zisebenzisa i-zirconia njengento ekrwada, kwaye zisebenzisa i-zirconia powder enobungakanani bemolekyuli yeenanometers ukubhaka kubushushu obuphezulu obungaphezulu kwama-2,000 degrees, kwaye zisebenzisa uxinzelelo olungaphezulu kweetoni ezingama-300 kubumba. Ukwazi ukuvelisa izikhewu zeemela ze-zirconia. Imela engenanto iculwa kakuhle ngedayimani ukwenza incakuba yemela yeceramic.
Ukusebenza kweemela ze-ceramic ze-zirconia ze-ceramic azihambelani nezitshetshe ze-ceramic ezimhlophe. Izinto ze-zirconia aziphuculi kakhulu kuphela amandla, ukuqina, ukuqina kunye nezinye iinkalo, kodwa zineenzuzo zokuxhathisa i-corrosion, ukumelana nokunxiba kunye nokumelana nokushisa okuphezulu. Ezi nzuzo zandisa kakhulu ububanzi bokusetyenziswa kweemela ze-ceramic ze-zirconia, kungekhona nje ukusika kunye nokwenza izinto ezinobunzima obuphezulu ngokweemfuno ezichanekileyo ezichanekileyo, kodwa zinokwenza ukusika ngesantya esiphezulu, kunye nokusika okuqhubekayo kumaqondo okushisa aphezulu ngaphezu kwe-1,000. yinto engenakwenza iimela zeceramic zesintu. Ukongeza, i-zirconia ikwabizwa ngokuba yi "zircon gemstone" ngenxa yembonakalo yayo entle kwaye inqabileyo, kwaye inokuchazwa njenge "imela ebalaseleyo".
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