Inqubo Yokukhiqiza Ye-Tungsten Carbide Grinding Quills: Ukusuka ku-Powder kuye kwithuluzi lokunemba

Izinsimbi zokugaya i-Tungsten carbide zingamathuluzi abalulekile emkhakheni wokugaya okunembayo okuphezulu, futhi ukusebenza kwawo okukhethekile kuvela ezinqubweni ezinhle zokukhiqiza. Uhambo olusuka ku-micron-level powder ukuya ethuluzini lokunemba lubandakanya uchungechunge lwenqubo elawulwa ngokucophelela.

Ukulinganisa Okungahluziwe kanye Nokuxuba

Ukukhiqiza kuqala nge-tungsten carbide powder ekhethwe ngokucophelela ne-cobalt powder. I-Cobalt isebenza njengesigaba sokuhlanganisa, futhi okuqukethwe kwayo kuthinta ngokuqondile ubulukhuni nokuqina komkhiqizo wokugcina. Imvamisa, okuqukethwe kwe-cobalt kusuka ku-6% kuye ku-12%, kulinganiswa ngokunembile ngokwezidingo ezithile zohlelo lokusebenza. Lezi zimpushana ezineleveli ye-micron zixutshwe emanzini ezigayweni zebhola ukuze kuqinisekiswe ukusatshalaliswa komfaniswano weleveli yamangqamuzana.

Inqubo Yokwakha

I-slurry exubile iyafafazwa ibe yizinhlayiyana ezigelezayo. Kamuva, kusetshenziswa ubuchwepheshe bokucindezela be-isostatic obunembayo obunembayo ukucindezela izinto ezisetshenziswayo ku-200-300 MPa ingcindezi. Kulesi sigaba, isimo se-geometric esiyisisekelo se-shaft yokugaya i-carbide siyakhiwa, kodwa amandla ahlala ephansi, edinga ukucubungula okwengeziwe.

Sintering Process

I-Sintering iwumgogodla wenqubo yokukhiqiza. Ezithandweni ze-vacuum sintering, izinga lokushisa lilawulwa ngokunembile ngaphezu kwendawo yokuncibilika ye-cobalt (imvamisa engu-1400-1500°C). Phakathi nalesi sigaba, isigaba se-cobalt siyancibilika futhi simanzise izinhlayiya ze-tungsten carbide, zenze isibopho esiqinile se-metallurgical ngokusebenzisa i-liquid phase sintering. Ukulawula okunembile kwejika lokushisa nesikhathi sokubamba kubalulekile ukuze kuqinisekiswe ukuminyana okuphelele kanye nokukhula okusanhlamvu okulawulwayo.

Precision Machining

Ibha yokugaya i-carbide engenalutho ingena esigabeni sokusebenza ngokunemba, esibalulekile ekuqinisekiseni ukuthi i-quill yokugaya ihlangabezana nezidingo zokusetshenziswa. Ukunyathelisa kwebhentshimakhi kuqala kwenziwa kusetshenziswa izigayi zesilinda ezinembe kakhulu ezinamasondo okugaya idayimane ukuze kusungulwe i-eksisi yesithenjwa enembile, enokubekezelela kobukhulu okulawulwa ngaphakathi kuka-±0.01 mm.

Izinqubo zokugaya ezinembayo eziyinhloko zifaka:

1. Ukucutshungulwa kwe-shank yamathuluzi: Ukusebenzisa izigayo ezinembayo eziphezulu ezinamasondo edayimane, okubandakanya ukugaya okungelula, ukuqeda kancane, nokuqeda. Ukugaya okumahhadlahhadla kususa okubalulekile okudlulele, ukuqeda kancane kufeza izidingo zobukhulu, futhi ukuqeda kuqinisekisa ubulukhuni obuphezulu Ra ≤ 0.2 μm. Ukubekezelela i-engeli ye-taper ye-HSK, i-CAPTO, nezinye izixhumi ezibonakalayo kufanele zibe phakathi kuka-±30”.

2. Ukucutshungulwa kwemigodi epholile: Ukusebenzisa imishini yokumba imbobo ejulile enobuchwepheshe bokubhola izibhamu. Ukuqinisekisa ikhwalithi yodonga lwembobo, isivinini sokuphakelayo (imvamisa engu-50-100 mm/min) kanye nokucindezela kokupholisa (10-15 MPa) kufanele kulawulwe ngokunembile. Ukunemba kobubanzi bembobo kufanele kufinyelele ibanga le-H7, ngephutha lokuqondisa elingeqi ku-0.02/100 mm.

3. Ukulinganisa okunamandla: Ukusebenzisa imishini ekhethekile yokulinganisa ukulungisa ukusabalalisa ngobuningi ngokususa izinto ezilinganayo. Izimfuneko zifaka phakathi ukuzuza ibanga lebhalansi le-G2.5 ngokungalingani okusele okungaphansi kuka-1 g·mm/kg ngesivinini esikhulu sokusebenza.

Ukuhlolwa Kwekhwalithi

Ukuhlola kokugcina kuhilela ukuxhumanisa imishini yokulinganisa yobukhulu bejometri, ama-laser interferometers efomu nokubekezelelana kwezikhundla, imishini yokulinganisa yokuhlola ibhalansi eguquguqukayo, kanye nezibonakhulu zensimbi zokuhlaziywa kwesakhiwo sezinto ezibonakalayo. Imikhiqizo edlula zonke izivivinyo eziqinile kuphela engalethwa.

Yonke inqubo yokukhiqiza ihlanganisa ubuchwepheshe obuningi obuhlanganisa i-powder metallurgy, ukunemba kwemishini, nokwelashwa kokushisa. Ukulawula okunembayo esigabeni ngasinye ngokuhlanganyela kunomthelela ekusebenzeni okukhethekile kwezinsimbi zokugaya i-tungsten carbide. Ikakhulukazi esigabeni sokusebenza ngokunemba, ukusetshenziswa okuphelele kobuchwepheshe bamathuluzi aqinile, ubuchwepheshe bokulinganisa ukunemba, nobuchwepheshe bokulawula obuzenzakalelayo kuqinisekisa ukunemba kokukhiqiza kwezinga le-micron.

I-Zhuzhou Better Tungsten Carbide Company inganikeza ikhwalithi ephezulu, ukunemba kwe-tungsten carbide quill quill. Linda oxhumana naye.