Yiziphi izici zamathuluzi okusika i-carbide?
Amathuluzi e-Carbide, ikakhulukazi amathuluzi e-carbide ane-indexable, ayimikhiqizo ehamba phambili yamathuluzi omshini we-CNC. Kusukela ngeminyaka yawo-1980s, izinhlobonhlobo zamathuluzi e-carbide aqinile futhi anenkomba, noma ama-insert, anwebele ezindaweni ezihlukahlukene zokucubungula. Amathuluzi, sebenzisa amathuluzi e-carbide anenkomba ukuze unwebe kusukela kumathuluzi alula kanye nezisiki zokugaya ubuso ukuya ekunembeni, amathuluzi ayinkimbinkimbi, namathuluzi okwakha. Ngakho-ke, yiziphi izici zamathuluzi e-carbide?
1. Ukuqina okuphezulu: Amathuluzi okusika i-carbide enziwe ngosimende enziwe nge-carbide enokuqina okuphezulu nendawo encibilikayo (ebizwa ngokuthi isigaba esiqinile) kanye ne-metal binder (ebizwa ngokuthi isigaba se-bonding) ngendlela ye-powder metallurgy, futhi ubulukhuni bayo buyi-89~93HRA, buphakeme kakhulu kunalobo insimbi enesivinini esikhulu, ku-5400C, ubulukhuni busengafinyelela ku-82-87HRA, obufana nensimbi yesivinini esiphezulu ekamelweni lokushisa (83-86HRA). Ukuqina kwe-carbide enosimende kuyahlukahluka kuye ngohlobo, ubuningi, usayizi wokusanhlamvu nokuqukethwe kwesigaba sokubopha insimbi, futhi ngokuvamile kuncipha ngokwanda kokuqukethwe kwesigaba sokubopha insimbi. Ngokuqukethwe okufanayo kwesigaba sokunamathela, ubulukhuni bengxubevange ye-YT buphakeme kunalobo bengxubevange ye-YG, kuyilapho ingxubevange equkethe i-TaC (NbC) inobulukhuni obuphezulu ezingeni lokushisa eliphezulu.
2. Amandla okugoba nokuqina: Amandla okugoba e-carbide enosimende ejwayelekile akubanga elingu-900-1500MPa. Ukuphakama kokuqukethwe kwesigaba sokubopha insimbi, kuyanda amandla okugoba. Uma okuqukethwe kwe-binder kuyefana, i-YG(WC-Co). Amandla engxubevange angaphezulu kwalawo engxubevange ye-YT (WC-Tic-Co), futhi amandla ayancipha ngokunyuka kokuqukethwe kwe-TiC. I-carbide enosimende iyinto ephukayo, futhi ukuqina kwayo komthelela ekamelweni lokushisa kungu-1/30 kuphela kuya ku-1/8 we-HSS.
3. Ukumelana nokugqoka okuhle. Ijubane lokusika lamathuluzi e-carbide enosimende liphakeme izikhathi ezi-4 ~ 7 kunelensimbi enesivinini esikhulu, futhi impilo yamathuluzi iphakeme izikhathi ezi-5 ~ 80. Ukuze kwenziwe isikhunta namathuluzi wokulinganisa, impilo yesevisi iphindwe izikhathi ezingu-20 kuya kwezingu-150 kunensimbi yensimbi ye-alloy. Ingakwazi ukusika izinto eziqinile ezingaba ngu-50HRC.
Ukusetshenziswa kwamathuluzi e-carbide: amathuluzi e-carbide ngokuvamile asetshenziswa ezikhungweni zemishini ye-CNC, imishini yokuqopha ye-CNC. Ingase futhi ifakwe emshinini wokugaya ojwayelekile ukuze icubungule ezinye izinto eziqinile, ezingelula neze eziphethwe ukushisa.
Njengamanje, amathuluzi okucubungula wezinto ezihlanganisiwe, amapulasitiki ezimboni, izinto ze-plexiglass kanye nezinto zensimbi ezingenayo insimbi emakethe wonke amathuluzi e-carbide, anezici zokuqina okuphezulu, ukumelana nokugqoka, ukuqina okuhle, ukumelana nokushisa kanye nokumelana nokugqwala. Kanye nochungechunge lwezakhiwo ezinhle kakhulu, ikakhulukazi ubulukhuni bayo obuphezulu nokumelana nokugqoka, noma ngabe ihlala ingashintshile ekushiseni kuka-500 °C, isenobunzima obuphezulu ku-1000 °C.
I-Carbide isetshenziswa kakhulu njengento yamathuluzi, njengamathuluzi okujika, izisiki zokugaya, amapulani, izinsimbi, amathuluzi ayisicefe, njll., ukusika insimbi, izinsimbi ezingenayo insimbi, amapulasitiki, imicu yekhemikhali, igraphite, ingilazi, itshe, njll. Okuvamile. insimbi ingabuye isetshenziselwe ukusika insimbi engangeni ekushiseni, insimbi engagqwali, insimbi ephezulu ye-manganese, insimbi yamathuluzi nezinye izinto okunzima ukuzisebenzisa emshinini.