Sezvo zita remaindasitiri mazino carbide, vazhinji veavo vakarishandisa havazivi kuti carbide inogadzirwa sei uye ndeupi musiyano mukugadzirwa kwayo, kutaura zvazviri, kugadzirwa kwecarbide kwakabatana nekushandiswa kwayo kwezvakatipoteredza.Semuenzaniso, carbide yemugodhi, carbide yekuchera matombo, carbidematurusi ekushandura, nezvimwewo zvese zvinoenderana nekushandiswa kwezvakatipoteredza.Kunewo semuenzaniso corrosion resistant carbide uye zvichingodaro.
Ko Cemented Carbide inogadzirwa sei?Ndeipi nzira yekugadzira?
Nzira yekugadzira simende carbide inowanzoita seizvi: refractory metal hard compounds (tungsten carbide, tantalum carbide, etc.), bonding metal (cobalt powder kana nickel powder) uye zvishoma zvinowedzera (stearic acid kana esomin) zvakasanganiswa uye pasi muhexane grinding medium, uye slurry yeparafini wax inowedzerwa, ipapo vacuum yakaomeswa (kana pfapfaidzo yakaomeswa), sieved, granulated, uye inoitwa musanganiswa zvinhu;iyo yakasanganiswa inotaridzwa uye inokodzera, uye mushure mekururama Iyo yakasanganiswa zvinhu inotaridzwa uye inokodzera, zvino inomanikidzwa kuita yakakwirira-chaiyo press billet;Iyo yakadzvanywa billet inoputirwa ne vacuum dewaxing kana yakaderera-kudzvanywa sintering kugadzirasimende carbide.
Sintering musimboti
Iyo vacuum sintering process inoitwa nekudziya pasi pevacuum mamiriro, ayo anobatsira kubvisa tsvina, kunatsiridza kuchena kwemhepo inopisa, kunatsiridza kunyorova kwechikamu chekubatanidza uye kukurudzira maitiro.Iyo yakadzvanywa billet inodziya muvacuum sintering atmosphere, uye sezvo tembiricha inokwira uye ichisvika pakupisa kwemhepo, inobuda mubillet yakatsikirirwa uye inobatwa kwenguva yakakwana pakumanikidzwa kweparafini mhute isingasviki tembiricha iyoyo, uye parafini. inobudiswa mubhiti rakatsikirirwa* uye yodzorerwa, uye bhiti rakatsikirirwa rinocheneswa.Sezvo kutonhora kunowedzera kuwedzera, billet inobviswa uye inowedzera kucheneswa, uye yakasimba-chikamu sintering inopinda.Muchikamu chakasimba chekuyerera, maatomu (kana mamorekuru) echikamu chega chega chiri mumuviri wakachekwa anopararira, chidimbu chekubata kumeso chinowedzera, chinhambwe chiri pakati pezvimedu chinodzikira, muviri wakanyura unodzikira uye unowedzera kusimbiswa.Kana tembiricha iri pedyo nekunyungudika kwechikamu chakasungirirwa, chikamu chakasungirirwa chinotanga kuyerera kwepurasitiki, uye kana tembiricha yechikamu chemvura yasvika, muviri wakanyoroveswa unoburitsa chikamu chemvura uye chikamu chemvura sintering chinoitika.
Muchikamu chemvura sintering process, chikamu chemvura chikamu chinoonekwa pane carbide pamusoro, uye iyocarbidezvimedu zvinonyungudika muchikamu chekubatanidza nekupararira kuita eutectic, uye zvimedu zvecarbide zvinodzokorora uye kukura muhukuru kuburikidza nechikamu chemvura, kuitira kuti padyo necarbide zvimedu zvinonyatsobatanidzwa, uye muviri wakaremara unodzikira nekukasira.Muviri we sintered unowedzera kudzikira uye nekukasira kuzara.Iyo inobatwa pane tembiricha yakakwira kupfuura sintering tembiricha yechikamu chemvura kwenguva yakati rebei kuitira kuti sintering ienderere mberi zvizere, uye yozotonhorera pasi.
Munguva yese yekupisa, iyo sintered body inodzikisirwa kusvika padhuze isiri-porosity, uye nhevedzano ye physicochemical mhedzisiro uye kugadziridzwa kwesangano kunogadzirwa, zvichikonzera kuumbwa kweine dense, simendi carbide ine imwe makemikari kuumbwa, yemuviri uye michina zvinhu, uye. chimiro chesangano.
Nguva yekutumira: Jun-29-2023
