I-Tungsten Carbide Hardness

Ukuqina kwe-tungsten carbide kuphakeme kakhulu, kungenye yezinto ezinobunzima obukhulu kakhulu phakathi kwezinsimbi, futhi ubulukhuni bayo be-Mohs bungafinyelela ku-9-9.5.Lokhu kwenza i-tungsten carbide ibe yimpahla efanelekile yokwenza amathuluzi nemibese yobulukhuni obuphezulu.

I-Tungsten carbide ivamise ukuba yinto exutshwe nezinto zensimbi ezifana ne-tungsten carbon nezibophezelo ezifana ne-cobalt ne-nickel, futhi ubulukhuni bayo ngokuvamile buba ngu-8-9.Phakathi kwazo, i-tungsten carbide ingenye yezingxenye ezinobunzima obukhulu kakhulu ku-carbide enosimende, futhi ubulukhuni bayo be-Mohs bungafinyelela ku-9-9.5, ngakho-ke isetshenziswa kabanzi ekwenzeni amathuluzi nemimese yobulukhuni obukhulu.I-carbide enosimende ene-cobalt eyengeziwe ekubunjweni inokumelana nokugqwala okungcono nokumelana nokugqoka.

Ukuqina kwe-alloy eqinile yi-HRA89-92.5, ephakeme kakhulu, ngakho-ke kunzima ukwenza izitsha ezibunjiwe eziyinkimbinkimbi.Uhlobo lokuqala lomhlaba lwe-hard alloy lusuka ku-1923, lapho usosayensi waseJalimane u-Schloetter evele ecabanga, i-tungsten carbide powder yengeza i-cobalt engu-10% ~ 20%, yenza i-tungsten carbide ne-cobalt entsha ingxubevange.
I-Carbide inobunzima obungu-86 kuya ku-93HRA
I-Hard alloy yenziwe ngezinhlobonhlobo ze-refractory metal carbide njengezinto zokusetshenziswa, ubulukhuni bayo obuhle, ukumelana nokugqoka kanye nokumelana nokugqwala, okwaziwa ngokuthi amazinyo ezimboni.Kodwa i-brittleness yayo inkulu, ayikwazi ukwenza imishini, kunzima ukwenza isimo sezinto eziyinkimbinkimbi.
I-alloy yokuqala eqinile kusukela ngo-1923, usosayensi waseJalimane uSchloetter.Ukusungulwa kwe-tungsten carbide ne-cobalt entsha ingxubevange, ubulukhuni buphezulu kakhulu, uhlobo lokuqala lomhlaba lwe-alloy eqinile, ngo-1929, usosayensi waseMelika uSchwarzkopf ukuthuthukisa, i-alloy eqinile kancane kancane yathuthukiswa.

Ukuqina kwe-Hard alloy kuphakeme kakhulu kunensimbi evamile, ngakho ukusetshenziswa kwayo kusetshenziselwa ukusika insimbi evamile.Ngokukhula okusheshayo kwemboni yezimoto yaseChina, isidingo samathuluzi okusika siyakhula, futhi imakethe ye-carbide enosimende nayo iyakhula.