Zvikamu zvekurima zvemugero wekurima zvine mativi akasimba zvechisel zvepurazi zvekurima zvine mutoro mukuru
Chigadzirwa ichi chikamu chikuru chekusakara kwemuchina wekurima wekurima—mupini wegejo—wakakodzera magejo akasiyana-siyana emapuranga emapuranga, magejo anodzoserwa, uye magejo epasi pevhu. Sechinhu chinotanga kubata ivhu uye chine kukweshana kukuru uye kukanganiswa, hunhu hwacho hunosarudza zvakananga kuramba kurima, kushanda zvakanaka kwemafuta, uye kugadzikana kwekushanda. Mupini wegejo uyu unoshandisa chimiro chakabatanidzwa che "high-strength matrix + gradient hard alloy," zvichiita kuti pave nekuenzana pakati pekupinda kwevhu kwakasimba, kuramba kurima uye kuderedza kudhonzwa, uye kusimba kwemhedzisiro. Izvi zvinowedzera zvakanyanya kutenderera kwekutsiva uye zvinoderedza avhareji yemutengo wekushanda paeka.
Matrix: Yakagadzirwa nesimbi yakasimba ye30MnB kana 40Cr, yakagadzirwa nesimbi inopisa zvakanyanya, ine density yakakura uye isina maburi emukati. Mushure mekuumbwa, inodzimwa uye inogadziriswa kuti iwane chimiro chemartensitic chakapfava. Kusimba kwe matrix impact kuri ≥50J/cm², iyo inogona kutora zvinobudirira kuputika kwematombo nemidzi yemiti, zvichibvisa njodzi yekutsemuka kana kuputsika.
Layer isingapfeki: Plasma welding kana laser cladding inoshandiswa pamusoro pevhu remuromo wegejo (nzvimbo yekupfekwa yemucheto wepamberi nepamusoro) kusvika kune simbi yakakandwa ine chromium yakawanda kana tungsten carbide-reinforced iron-based alloy. Weld overlay inogona kusvika pakuoma kweHRC 58-62, ine ukobvu hwe2.5-4.0 mm, ichigadzira chisungo chesimbi ne substrate uye ichibvisa njodzi yekukweshwa. Pasi pemamiriro ekukweshwa nekukurumidza muvhu, zvidimbu zvakaoma zvinoumba chimiro che "micro-support" chinodzivirira, zvichideredza mwero wekupfekwa kusvika 1/3 chete yemaplate esimbi akajairwa e65Mn.
Dhizaini yeGeometric: Nzvimbo yakakombama yemuromo wegejo inogadziriswa zvichibva pakufamba kwevhu, zvichideredza kona yekukweshana nevhu. Chikamu chepamberi chine dhizaini inotetepa zvishoma nezvishoma, ine jira rakatetepa, ichideredza kumanikidzwa kwevhu; zvikamu zvepakati nezvemashure zvinokora zvishoma nezvishoma kuti zvive nechokwadi chekuti ivhu harina kuomarara. Kona yekupinda yakayerwa mumunda yemhando dzakasiyana dzevhu (jecha, ivhu, dongo), ichibatanidza kugona kwayo kupinda nekusakwanisa kukwesha.
Kusapfeka Zvakanyanya: Kuongororwa kwekupfekwa kwemavhiri erabha ejecha rakaoma murabhoritari kunoratidza kuti huwandu hwekupfekwa kweyuniti i ≤0.25g/kg·m. Mumamiriro ejecha repakati nepakati, muromo mumwe chete wegejo unogona kupedzisa maeka mazana mashanu kusvika mazana masere ebasa, nehupenyu hwawo hunosvika kaviri nehafu kupfuura muromo wesimbi we65Mn.
Hunhu Hwekuzvirodza: Kukwidibira kwesimbi kwakasimba uye substrate yakapfava zvinoumba kupera kwesimba—substrate inopera nekukurumidza, zvichiita kuti zvidimbu zvecarbide zvakasungirirwa zvirambe zvichibuda zvishoma kubva panzvimbo yekushanda, zvichiramba zvichichengetedza chimiro chakapinza chemupendero uye zvichidzivirira kushandiswa kwemafuta zvakanyanya nekuda kwekuoma.
Kusabatwa nenjodzi uye kuchengetedzeka: Kana ukasangana nematombo akavanzika kana zvipingamupinyi zvakaoma, matrix yese haizotyoki, uye kushanduka kwenzvimbo chete kunogona kuitika; kukwirira kwepurasitiki kwakakwana kudzivirira marara kuwira mumunda nekukuvadza michina inotevera.
