Ukufakwa kwe-surface ceramization – ukufutha nge-plasma kanye nokwakheka kokushisa okuphezulu okuzikhulisayo
Ukufutha nge-plasma kukhiqiza i-DC arc phakathi kwe-cathode ne-anode. I-arc i-ionization yegesi esebenzayo ibe yi-plasma enokushisa okuphezulu. Ilangabi le-plasma lenziwa ukuze lincibilikise impuphu ukuze yakhe amaconsi. Umsinga wegesi osheshayo ukhipha amaconsi bese uwakhipha aye ku-substrate. Ubuso bakha uqweqwe. Inzuzo yokufutha nge-plasma ukuthi izinga lokushisa lokufutha liphezulu kakhulu, izinga lokushisa eliphakathi lingafinyelela ngaphezu kuka-10 000 K, futhi noma yikuphi uqweqwe lwe-ceramic olusezingeni eliphezulu lokuncibilika lungalungiswa, futhi uqweqwe lunobukhulu obuhle kanye namandla aphezulu okubopha. Ububi ukuthi ukusebenza kahle kokufutha kuphakeme. Izindleko zokutshala imali eziphansi, nezibizayo, kanye kanye ziphakeme.
Ukwenziwa kokushisa okuphezulu okuzikhulisayo (i-SHS) ubuchwepheshe bokwenza izinto ezintsha ngokuziqhubela ukushisa okuphezulu kokusabela kwamakhemikhali phakathi kwama-reactants. Inezinzuzo zemishini elula, inqubo elula, ukusebenza kahle kokukhiqiza okuphezulu, ukusetshenziswa kwamandla aphansi kanye nokungabi nokungcola. Ubuchwepheshe bobunjiniyela bomphezulu obufaneleka kakhulu ekuvikeleni udonga lwangaphakathi lwamapayipi. Ulwelwesi lwe-ceramic olulungiselelwe yi-SHS lunezici zamandla aphezulu okubopha, ubulukhuni obuphezulu kanye nokumelana nokugqwala, okungandisa ngempumelelo impilo yepayipi. Ingxenye eyinhloko ye-ceramic liner esetshenziswa kumapayipi kaphethiloli yi-Fe+Al2O3. Inqubo iwukuxuba ngokulinganayo i-iron oxide powder kanye ne-aluminium powder epayipini lensimbi, bese ujikeleza ngesivinini esiphezulu ku-centrifuge, bese uvutha nge-spark kagesi, bese i-powder iyasha. Ukusabela kokufuduka kwenzeka ukuze kwakheke ungqimba oluncibilikisiwe lwe-Fe+Al2O3. Ungqimba oluncibilikisiwe lubekwe ngaphansi kwesenzo samandla e-centrifugal. I-Fe iseduze nodonga lwangaphakathi lwepayipi lensimbi, kanti i-Al2O3 yakha i-ceramic inner liner kude nodonga lwepayipi.
Isikhathi sokuthunyelwe: Disemba 17-2018