I-Ruitai Kitchen Knives: INkulumbuso Umthombo Weemela zeKhitshi zesiNtu zaseTshayina
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I-Ruitai Kitchen Knives: INkulumbuso Umthombo Weemela zeKhitshi zesiNtu zaseTshayina
Kukho iindidi ezimbini zeendlela zokwaleka zesixhobo eziqhelekileyo: ukubekwa komphunga wekhemikhali (cvd) kunye nokubekwa komphunga obonakalayo (pvd) okwangoku. Kwiminyaka yakutshanje, ezinye iinkqubo ezintsha zokugquma ziye zavela, ezinethemba elihle lokufaka isicelo.
CVD
Indlela ye-CVD, eyeyokubekwa kweathom, yindlela yokwenza umaleko wokubekwa okuqinileyo kumphezulu wematrix yokufudumeza ngokusebenzisa umphunga, i-hydrogen kunye namanye amacandelo ekhemikhali e-metal halide kubushushu obuphezulu obungama-950~1050℃. Inkqubo ibandakanya izigaba ezintathu: i-vaporization yezinto eziphathekayo, ukuthutha ukuya kwindawo ye-matrix kunye nokwakhiwa kwe-overlay kwi-matrix.
Kuzo zonke iintlobo zeendlela ze-cvd, i-vacuum ion bombardment kunye ne-magnetron ion reaction yokutshiza zezona zisetyenziswayo. Itekhnoloji ye-cvd isetyenziselwa kakhulu ukugquma komhlaba wezixhobo zokusika i-carbide, ezilungele ukurhabaxa okuphezulu kunye nokugqitywa kwesiqingatha sokusika okuphakathi kunye nobunzima.
Xa kuthelekiswa nezinye iindlela zokugquma, indlela ye-cvd ayinayo kuphela izibonelelo zezixhobo ezilula, inkqubo evuthiweyo, kodwa ineenzuzo ezilandelayo:
Zininzi iindidi zentlenga, ezinokugqunywa ngesinyithi, ialloys, carbides, nitrides, borides, oxides, carbon nitrides, oxygen nitrides, hydro-carbon nitrides, njl. Ngokufikeleleka okuphezulu kunye nokufana, iingubo ezininzi ze-multilayer ezinezicubu ezahlukeneyo zinokufumaneka, kwaye ubukhulu bokugqoka bufana. Izinga lokubekwa liphezulu kwaye kulula ukulawula. Ingubo inobunyulu obuphezulu kunye neenkozo ezintle kwaye ezixineneyo. Ukuncamathela okuqinileyo kunokufumana ukhuko olutyebileyo. Iindleko zenkqubo ephantsi, ezifanelekileyo kwimveliso yobuninzi.
PVD
Indlela yePVD kukususa imathiriyeli kwimithombo ekujoliswe kuyo ngeendlela ezibonakalayo ezifana nokuphuma komphunga okanye ukufafaza, kwaye emva koko ufake ezi ion zomphunga zinamandla kwi-substrate okanye inxalenye yomhlaba ukwenza umaleko wefilim ngokusebenzisa ivacuum okanye isithuba semi-vacuum. Ukusabela komphunga we-athomu yentsimbi ekhutshiweyo okanye echithekileyo ikhokelela ekubekweni kweekhompawundi ezifunekayo kumphezulu wesixhobo. Ukwaleka kwe-pvd kunokugqunywa nge-titanium nitride, i-titanium carbon nitride, i-aluminiyam i-titanium nitrogen ikhompawundi, kunye neentsimbi ezahlukeneyo eziphikisayo ze-carbides kunye ne-nitrides.
Itekhnoloji ye-PVD isetyenziswa ikakhulu kunyango lomphezulu wezixhobo ezidityanisiweyo ze-carbide kunye nezixhobo zentsimbi zesantya esiphezulu. Isetyenziswe ngokubanzi kunyango lokugquma kwe-carbide bit, i-milling cutter, i-reamer, itephu, isixhobo esinemilo ekhethekileyo, isixhobo sokuwelda njalo njalo.
MT-CVD
I-tcn yokwambathisa ene-fibrous crystalline morphology exineneyo inokufunyanwa ngobushushu obuphakathi bekhemikhali yokubeka umphunga (MT-CVD) kwi-700 ~ 900℃. Ubukhulu bokugquma bunokufikelela kwi-8 ~ 10μm, kwaye bunokuba yi-a2o3, inkonkxa kumphezulu we-cvd ubuchwepheshe.
I-MT-CVD i-coating blade ifanelekile kwisantya esiphezulu, ubushushu obuphezulu, umthwalo omkhulu, iimeko zokusika ezomileyo, ubomi bayo bu malunga nokuphindwe kabini kunobo be-blade yokugqoka eqhelekileyo. I-cvd i-drawback ephambili yendlela kukuba iqondo lokushisa lokubeka liphezulu, kwaye isixhobo se-annealing kunye ne-deformation iya kwenzeka xa isixhobo sentsimbi yesantya esiphezulu sigqunywe. Ngoko isixhobo esifakiweyo kufuneka sicinywe.
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