Ziziphi iimpawu zezixhobo zokusika i-carbide?
Izixhobo zeCarbide, ngakumbi izixhobo ze-carbide ezibonisa isalathisi, ziimveliso eziphambili ze-CNC zokwenza izixhobo. Ukususela ngo-1980, iintlobo zezixhobo eziqinileyo kunye ne-indexable carbide, okanye ukufakwa, ziye zanda kwiindawo ezahlukeneyo zokucwangcisa. Izixhobo, sebenzisa i-indexable carbide izixhobo zokwandisa ukusuka kwizixhobo ezilula kunye nobuso be-milling cutters ukuya ngokuchanekileyo, ubunzima, kunye nokwenza izixhobo. Ngoko ke, ziziphi iimpawu zezixhobo ze-carbide?
1. Ukuqina okuphezulu: Izixhobo zokusika i-carbide ezenziwe ngesamente zenziwe nge-carbide enobunzima obuphezulu kunye nendawo yokunyibilika (ebizwa ngokuba yi-hard phase) kunye ne-metal binder (ebizwa ngokuba yi-bonding phase) ngomgubo wemetalurgy method, kwaye ubulukhuni bayo yi-89~93HRA, iphakame kakhulu kuno- insimbi enesantya esiphezulu, kwi-5400C, ubunzima busenokufikelela kwi-82-87HRA, obufana nentsimbi yesantya esiphezulu kwiqondo lokushisa (83-86HRA). Ubunzima be-carbide ene-cemented buhluka ngohlobo, ubuninzi, ubungakanani beenkozo kunye nomxholo wesigaba sokubopha isinyithi, kwaye ngokubanzi kuncipha ngokunyuka komxholo wesigaba sokubopha isinyithi. Ngomxholo ofanayo wesigaba sokubambelela, ukuqina kwe-YT i-alloy iphezulu kune-YG alloy, ngelixa i-alloy equkethe i-TaC (NbC) inobunzima obuphezulu kwiqondo lokushisa eliphezulu.
2. Amandla okugoba kunye nokuqina: Amandla okugoba ekhabhide eqhelekileyo enesamente akuluhlu lwe-900-1500MPa. Ukuphakama komxholo wesigaba sokubopha isinyithi, ukuphakama kwamandla okugoba. Xa umxholo wesibophelelo ufana, YG(WC-Co). Amandla e-alloy aphezulu kune-YT (WC-Tic-Co) alloy, kwaye amandla ayancipha ngokunyuka komxholo we-TiC. I-carbide ene-cemented yi-brittle material, kwaye impembelelo yayo yokuqina kwiqondo lokushisa yi-1/30 kuphela kwi-1/8 ye-HSS.
3. Ukumelana nokunxiba kakuhle. Isantya sokusika izixhobo ze-carbide ze-cemented yi-4 ~ 7 amaxesha aphakamileyo ngaphezu kwe-speed-speed steel, kwaye ubomi besixhobo bu-5 ~ 80 ngamaxesha aphezulu. Ukwenziwa kwesikhunta kunye nezixhobo zokulinganisa, ubomi benkonzo bubude be-20 ukuya kumaxesha angama-150 ngaphezu kwensimbi yensimbi ye-alloy. Inokusika izinto eziqinileyo malunga ne-50HRC.
Ukusetyenziswa kwezixhobo ze-carbide: izixhobo ze-carbide zisetyenziswa ngokubanzi kumaziko omatshini we-CNC, oomatshini bokukrola be-CNC. Isenokufakwa kumatshini wokusila oqhelekileyo ukuze kusetyenzwe izinto ezinzima, ezingantsonkothanga eziphethwe bubushushu.
Okwangoku, izixhobo zokulungisa izinto ezidibeneyo, iiplastiki zemizi-mveliso, izixhobo ze-plexiglass kunye nezixhobo zetsimbi ezingenayo i-ferrous kwimarike zonke zizixhobo ze-carbide, ezineempawu zobunzima obuphezulu, ukuxhathisa ukunxiba, ukuqina okulungileyo, ukuxhathisa ubushushu kunye nokuxhathisa ukubola. Kunye nothotho lweempawu ezigqwesileyo, ngakumbi ubunzima bayo obuphezulu kunye nokumelana nokunxiba, nokuba ihlala ingatshintshi kwiqondo lobushushu le-500 °C, isenobunzima obuphezulu kwi-1000 °C.
ICarbide isetyenziswa kakhulu njengezixhobo zesixhobo, ezinje ngezixhobo zokujika, izixhobo zokusila, iiplani, iidrili, izixhobo ezidikayo, njl. njl intsimbi ingasetyenziselwa ukusika intsimbi enganyangeki ukushisa, insimbi engenasici, intsimbi ephezulu yemanganese, intsimbi yesixhobo kunye nezinye izinto ezinzima kumatshini.