Izixhobo ezigqunyiweyo ze-carbide zinezi nzuzo zilandelayo:
(1) Izinto zokugquma zomaleko womphezulu unobunzima obuphezulu kakhulu kunye nokumelana nokunxiba. Xa kuthelekiswa ne-carbide engaxutywanga, i-carbide ene-cemented cemented ivumela ukusetyenziswa kwezantya eziphezulu zokusika, ngaloo ndlela kuphuculwe ukusebenza kakuhle, okanye Inokunyusa kakhulu ubomi besixhobo kwisantya esifanayo sokusika.
(2) I-coefficient of friction phakathi kwezinto ezifihliweyo kunye nezinto ezicwangcisiweyo zincinci. Xa kuthelekiswa ne-carbide ye-cemented engaxutywanga, amandla okusika i-carbide ene-cemented cemented iyancitshiswa kwinqanaba elithile, kwaye umgangatho owenziweyo ungcono.
(3) Ngenxa yokusebenza kakuhle okubanzi, imela ye-carbide egqunyiweyo inokuguquguquka okungcono kunye noluhlu olubanzi lwesicelo. Eyona ndlela isetyenziswa ngokuqhelekileyo yokugquma i-carbide ye-cemented yi-high heat chemical vapor deposition (HTCVD). I-Plasma chemical vapor deposition (PCVD) isetyenziselwa ukugquma umphezulu we-carbide enesamente.
Iindidi zokwaleka zabasiki besamente zokusila i-carbide:
Izinto ezintathu eziqhelekileyo zokugqoka i-titanium nitride (TiN), i-titanium carbonitride (TiCN) kunye ne-titanium aluminide (TiAIN).
I-Titanium nitride yokugquma inokunyusa ukuqina kunye nokumelana nokunxiba kwendawo yesixhobo, ukunciphisa i-coefficient ye-friction, ukunciphisa ukuveliswa komphetho owenziweyo, kunye nokwandisa ubomi besixhobo. Izixhobo ezigqunywe nge-Titanium nitride zifanelekile ukusetyenzwa kwentsimbi ephantsi kunye nentsimbi engenasici.
Umphezulu wengubo ye-titanium carbonitride ingwevu, ubunzima buphezulu kunobo be-titanium nitride yokugqoka, kwaye ukuxhathisa ukunxiba kungcono. Xa kuthelekiswa ne-titanium nitride yokwambathisa, isixhobo sokugquma i-titanium carbonitride sinokucutshungulwa kwisantya esikhulu sokutya kunye nesantya sokusika (i-40% kunye ne-60% ephezulu kuneyo yokwambathisa i-titanium nitride, ngokulandelanayo), kunye nenqanaba lokususwa kwezinto zokusebenza liphezulu. Izixhobo ezigqunywe nge-Titanium carbonitride zinokusebenza ngeendlela ezahlukeneyo zezixhobo zokusebenza.
Ingubo ye-titanium aluminide ingwevu okanye imnyama. Ikakhulu ifakwe kumphezulu wesiseko se-cemented carbide tool. Isenokwenziwa xa ubushushu bokusika bufikelela kuma-800 ℃. Kufanelekile ukusika isantya esomileyo. Ngexesha lokusika okomileyo, ii-chips kwindawo yokusika inokususwa ngomoya ocinezelweyo. I-Titanium aluminide ilungele ukusetyenzwa kwezixhobo ezinqabileyo ezifana nentsimbi eqinile, ingxubevange ye-titanium, i-alloy esekwe kwi-nickel, isinyithi esityhidiweyo kunye ne-silicon ephezulu ye-aluminium alloy.
Ukufakwa kokugquma kwesamente yokusika i-carbide milling cutter:
Inkqubela phambili yetekhnoloji yokugqoka isixhobo nayo ibonakaliswe ekusebenzeni kwe-nano-coating. Ukwambathisa amakhulu emigangatho yezixhobo ezinobunzima beenanometers ezininzi kwisiseko sesixhobo kubizwa ngokuba yi-nano-coating. Ubungakanani beqhekeza ngalinye le-nano-coating material lincinci kakhulu, ngoko ke umda weenkozo ude kakhulu, onobunzima obuphezulu bokushisa. Amandla kunye nokuqina kokwaphuka.
Ubulukhuni beVickers be-nano-coating bunokufikelela kwi-HV2800～3000, kwaye ukuxhathisa ukunxiba kuphuculwe nge-5% ~50% kuneyezinto ze-micron. Ngokweengxelo, okwangoku, iileyile ze-62 zezixhobo zokugubungela kunye neengubo ezitshintshileyo ze-titanium carbide kunye ne-titanium carbonitride kunye ne-400 yezixhobo ze-TiAlN-TiAlN / Al2O3 ze-nano-coated ziye zaphuhliswa.
Xa kuthelekiswa nolu qweqwe olunzima olungentla, i-sulfide (i-MoS2, i-WS2) egqunywe kwintsimbi enesantya esiphezulu ibizwa ngokuba yi-soft coating, esetyenziselwa ikakhulu ukusika i-alloys ye-aluminium ephezulu, i-titanium alloys kunye nezinye iintsimbi ezinqabileyo.
Ukuba unayo nayiphi na imfuno, nceda uqhagamshelane ne-XINFA, sinobuthathaka bokubonelela ngezixhobo zobungakanani obuqhelekileyo ngexesha elifutshane kunye nesicwangciso sezixhobo ezilungiselelwe abathengi.
Ixesha lokuposa: Aug-14-2015
