Qalabka carbide ee dahaarka leh waxay leeyihiin faa'iidooyinka soo socda:
(1) Maaddada dahaarka ee lakabka sare ayaa leh qallafsanaan aad u sarreeya oo xirto caabbinta. Marka la barbar dhigo carbid sibidhka ah ee aan la daboolin, kabid sibidh ah oo daboolan ayaa u oggolaanaya isticmaalka xawaaraha sare ee jarista, taas oo hagaajinaysa waxtarka farsamaynta, ama Waxay si weyn u kordhin kartaa nolosha qalabka isla xawaaraha goynta.
(2) Isku-dhafka isku-dhafka u dhexeeya walxaha dahaarka leh iyo walxaha la warshadeeyay ayaa yar. Marka la barbardhigo kaarbiid sibidh ah oo aan la daboolin, xoogga goynta ee karbidhida sibidhka ee daboolan ayaa la dhimay ilaa xad, tayada dusha la warshadeeyay ayaa ka sii fiican.
(3) Iyada oo ay ugu wacan tahay waxqabadka dhammaystiran ee wanaagsan, mindida carbide ee dahaarka leh ayaa leh kala duwanaansho wanaagsan iyo kala duwanaansho codsi oo ballaadhan. Habka ugu badan ee loo isticmaalo daahan kaarbiide sibidhka ah waa heerkulka sare ee kaydinta uumiga kiimikada (HTCVD). Dhigista uumiga kiimikada Plasma (PCVD) ayaa loo isticmaalaa in lagu dahaadho dusha sare ee karbidhida sibidhka.
Noocyada dahaarka ee kuwa wax lagu shiido karbidhida sibidhka:
Saddexda maaddooyinka ugu caansan waa titanium nitride (TiN), titanium carbonitride (TiCN) iyo titanium aluminide (TiAIN).
Daahan Titanium nitride wuxuu kordhin karaa adkaanta oo uu xidho iska caabbinta dusha sare ee qalabka, yaraynta isku xidhka isku xidhka, yaraynta jiilka cidhifka dhisan, iyo kordhinta nolosha qalabka. Aaladaha dahaarka leh ee Titanium nitride waxay ku habboon yihiin farsamaynta birta-daawaha hoose iyo birta aan lahayn.
Dusha sare ee titanium carbonitride daahan waa cawl, adayggu wuu ka sarreeyaa kan dahaadhka titanium nitride, iyo caabbinta xirashada ayaa ka fiican. Marka la barbar dhigo daahan titanium nitride, qalab daahan titanium carbonitride waxaa laga baaraandegi karaa xawaaraha feed weyn iyo goynta xawaaraha (40% iyo 60% ka sarreeya in daahan titanium nitride, siday u kala horreeyaan), iyo workpiece heerka saarista alaabta waa sare. Qalabka dahaarka leh ee Titanium carbonitride wuxuu farsamayn karaa noocyo kala duwan oo qalab shaqo ah.
Dahaarka aluminium titanium waa cawl ama madow. Waxaa inta badan lagu dahaadhay dusha sare ee saldhigga qalabka carbide sibidhka. Weli waa la farsamayn karaa marka heerkulku goyntu gaadho 800 ℃. Waxay ku habboon tahay goynta qalalan ee xawaaraha sare leh. Inta lagu jiro goynta qallalan, jajabyada ku yaal aagga goynta ayaa laga saari karaa hawo ciriiri ah. Titanium aluminide wuxuu ku habboon yahay farsamaynta walxaha jajaban sida birta adag, daawaha titanium, daawaha nikkel ku salaysan, birta shubka ah iyo aluminium silikoon sare leh.
Codsiga dahaarka ah ee mishiinka wax lagu shiido karbidhida sibidhka:
Horumarka tignoolajiyada dahaarka qalabka ayaa sidoo kale ka muuqda wax ku oolnimada nano-dahaarka. Dahaarka boqollaal lakab oo walxo leh dhumuc dhowr nanometer ah oo ku saabsan alaabta saldhigga ah waxaa loo yaqaannaa nano-coating. Baaxadda qayb kasta oo ka mid ah walxaha nano-daahan waa mid aad u yar, sidaas darteed xadka hadhuudhku waa mid aad u dheer, kaas oo leh heerkul sare oo adag. Xoog iyo jab adag.
Adkeysiga Vickers ee nano-dahaarka wuxuu gaari karaa HV2800-3000, iyo caabbinta xirashada waxaa lagu wanaajiyay 5% ~ 50% marka loo eego kuwa walxaha micron ah. Sida ay wararku sheegayaan, wakhtigan xaadirka ah, 62 lakab oo qalab dahaar ah oo leh dahaar beddelan oo ah titanium carbide iyo titanium carbonitride iyo 400 lakab oo TiAlN-TiAlN/Al2O3 qalabka nano-dahaarka leh ayaa la sameeyay.
Marka la barbardhigo dahaarka adag ee kor ku xusan, sulfide (MoS2, WS2) ee ku dahaaran birta xawaaraha sare leh waxaa loo yaqaannaa daahan jilicsan, kaas oo inta badan loo isticmaalo in lagu gooyo aluminiumka aluminium ee xoogga badan, Alloys titanium iyo qaar ka mid ah biraha dhifka ah.
Haddii aad wax baahi ah u qabto, fadlan la xidhiidh XINFA, waxaanu aad u jecelnahay inaanu ku bixinno qalabka cabbirka caadiga ah muddo gaaban gudaheed iyo qalab loo habeeyey macaamiisha.
Waqtiga boostada: Agoosto-14-2015
