Izixhobo ze-carbide ezigqunywe nge-coated zinezibonelelo ezilandelayo:
(1) Izinto zokugquma zomaleko womphezulu zinobunzima obuphezulu kakhulu kwaye ziyamelana nokuguguleka. Xa kuthelekiswa ne-carbide engagqunywanga, i-carbide egqunywe nge-cement ivumela ukusetyenziswa kwesantya esiphezulu sokusika, ngaloo ndlela iphucula ukusebenza kakuhle kokucubungula, okanye inokunyusa kakhulu ubomi besixhobo ngesantya esifanayo sokusika.
(2) I-coefficient of friction phakathi kwezinto ezigqunyiweyo kunye nezinto ezicutshungulwayo incinci. Xa ithelekiswa ne-carbide engagqunywanga, amandla okusika e-carbide egqunyiweyo ayancitshiswa ukuya kwinqanaba elithile, kwaye umgangatho womphezulu ocutshungulwayo ungcono.
(3) Ngenxa yokusebenza kakuhle okubanzi, imela ye-carbide egqunyiweyo inokuguquguquka okungcono kunye noluhlu olubanzi lokusetyenziswa. Eyona ndlela isetyenziswa kakhulu yokugquma i-carbide egqunyiweyo kukufakwa kwe-chemical vapor vapor ngobushushu obuphezulu (HTCVD). Ukufakwa kwe-plasma chemical vapor (PCVD) kusetyenziswa ukugquma umphezulu we-carbide egqunyiweyo.
Iintlobo zokugquma zezixhobo zokusika i-carbide eziqinisiweyo:
Izinto ezintathu ezisetyenziswa kakhulu xa kugqunywa i-titanium nitride (TiN), i-titanium carbonitride (TiCN) kunye ne-titanium aluminide (TiAIN).
Ingubo ye-titanium nitride inokunyusa ubulukhuni kunye nokumelana nokuguguleka komphezulu wesixhobo, inciphise i-frosting coefficient, inciphise ukuveliswa komphetho owakhelwe phezulu, kwaye yandise ubomi besixhobo. Izixhobo ezigqunywe nge-titanium nitride zifanelekile ekucutshungulweni kwentsimbi engenamafutha aphantsi kunye nentsimbi engagqwaliyo.
Umphezulu wengubo ye-titanium carbonitride ungwevu, ubunzima buphezulu kunobo bengubo ye-titanium nitride, kwaye ukumelana nokuguguleka kungcono. Xa kuthelekiswa nengubo ye-titanium nitride, isixhobo sengubo ye-titanium carbonitride sinokucutshungulwa ngesantya esiphezulu sokondla kunye nesantya sokusika (i-40% kunye ne-60% ephezulu kuneyo yengubo ye-titanium nitride, ngokulandelelana), kwaye izinga lokususwa kwezinto zokusebenza liphezulu. Izixhobo ze-titanium carbonitride ezigqunywe nge-titanium zinokucutshungulwa kwezixhobo ezahlukeneyo zomsebenzi.
Ingubo ye-titanium aluminide ingwevu okanye imnyama. Igqunywe kakhulu phezu komphezulu wesiseko sesixhobo se-carbide esifakwe isamente. Isenokucutshungulwa xa ubushushu bokusika bufikelela kwi-800 ℃. Ifanelekile ukusika okomileyo ngesantya esiphezulu. Ngexesha lokusika okomileyo, iitships kwindawo yokusika zingasuswa ngomoya ocinezelweyo. I-titanium aluminide ifanelekile ukucubungula izinto ezibuthathaka ezifana nentsimbi eqinileyo, i-titanium alloy, i-nickel-based alloy, i-cast iron kunye ne-silicon alloy ephezulu.
Ukusetyenziswa kwe-coating ye-carbide milling cutter eyenziwe ngesamente:
Inkqubela phambili yetekhnoloji yokugquma izixhobo ikwabonakala kwindlela esebenza ngayo i-nano-coating. Ukugquma amakhulu eeleyara zezinto ezinobukhulu bee-nanometers ezininzi kwizinto ezisisiseko sesixhobo kubizwa ngokuba yi-nano-coating. Ubungakanani besuntswana ngalinye lezinto zokugquma ezincinci buncinci kakhulu, ngoko ke umda weenkozo mde kakhulu, onobunzima obuphezulu bobushushu. , Amandla kunye nokuqina kokuqhekeka.
Ubunzima be-nano-coating yeVickers bunokufikelela kwi-HV2800 ～3000, kwaye ukumelana nokuguguleka kuphuculwe nge-5% ～50% kunoko kwezinto ze-micron. Ngokweengxelo, okwangoku, kuye kwaphuhliswa iileya ezingama-62 zezixhobo zokugquma ezinee-coating ezitshintshanayo ze-titanium carbide kunye ne-titanium carbonitride kunye neeleya ezingama-400 zezixhobo ze-nano-coated ze-TiAlN-TiAlN/Al2O3.
Xa kuthelekiswa nezigqubuthelo eziqinileyo ezingentla, i-sulfide (MoS2, WS2) egqunywe ngentsimbi ekhawulezayo ibizwa ngokuba yi-soft coating, esetyenziswa kakhulu ekusikeni ii-alloys ze-aluminium ezinamandla aphezulu, ii-alloys ze-titanium kunye nezinye izinyithi ezinqabileyo.
Ukuba unesidingo, nceda unxibelelane ne-MSK, sikulungele ukubonelela ngezixhobo zobukhulu obuqhelekileyo ngexesha elifutshane kunye nesicwangciso sezixhobo ezenzelwe abathengi.
Ixesha lokuthumela: Septemba-22-2021
