Kuomarara kwe tungsten carbide kwakakwira zvakanyanya, ndechimwe chezvinhu zvine kuomarara kwepamusoro pakati pesimbi, uye kuoma kwayo kweMohs kunogona kusvika 9-9.5.Izvi zvinoita kuti tungsten carbide ive chinhu chakanakira kugadzirwa kwepamusoro kuomarara maturusi nemapanga.
Tungsten carbide inowanzova chinhu chakasanganiswa nezvinhu zvesimbi senge tungsten kabhoni uye mabhandi akadai secobalt uye nickel, uye kuoma kwayo kunowanzo kutenderedza 8-9.Pakati pavo, tungsten carbide chimwe chezvikamu zvine kuomarara kwepamusoro mune simende carbide, uye kuomarara kwayo kweMohs kunogona kusvika 9-9.5, saka inoshandiswa zvakanyanya mukugadzira maturusi akanyanya kuoma uye mapanga.Iyo yakasimwa carbide ine yakawanda cobalt muchimiro ine zvirinani kusagadzika kwecorrosion uye kupfeka kuramba.
Kuomarara kweiyo hard alloy ndeye HRA89-92.5, iyo yakanyanya kukwirira, saka zvakaoma kugadzira midziyo yemhando yakaoma.Nyika yekutanga yemhando yakaoma alloy yakabva muna 1923, apo musayendisiti weGermany Schloetter akangoerekana afunga, tungsten carbide powder yakawedzera 10% ~ 20% cobalt, yakagadzira tungsten carbide uye cobalt itsva alloy.
Carbide ine kuoma kwe86 kusvika 93HRA
Hard alloy inogadzirwa neyakasiyana-siyana refractory metal carbide semidziyo yakabikwa, kuoma kwayo kwakanaka, kusagadzika kwekupfeka uye kusagadzikana kwemarara, inozivikanwa semazino eindasitiri.Asi brittleness yaro yakakura, haigoni kuva machining, yakaoma kuita chimiro chezvinhu zvakaoma.
Yekutanga yakaoma alloy kubva 1923, German musayendisiti Schloetter.Kugadzirwa kwe tungsten carbide uye cobalt itsva alloy, kuoma kwakanyanya, ndiyo yekutanga yenyika yemhando yakaoma alloy, 1929, musayendisiti weAmerica Schwarzkopf kuvandudza, alloy yakaoma zvishoma nezvishoma yakagadziridzwa.
Hard alloy hardness yakakwira zvakanyanya kudarika simbi yakajairika, saka kushandiswa kwayo kunonyanya kushandiswa kucheka simbi yakajairika.Nekukurumidza kuwedzera kweindasitiri yemotokari yeChinese, kudiwa kwemidziyo yekucheka kuri kuwedzera, uye musika wesimende carbide uri kuwedzerawo.
Nguva yekutumira: Chivabvu-09-2023
