Simba rekuongorora bhaketi zino rinoshanda chiso uye chinhu chakacherwa chekubata, mukuchera kwakakwana kwemaitiro akasiyana-siyana ekushanda kwemamiriro ayo akasiyana-siyana ekushungurudzika.Kana zino rezino rinotanga kubata chinhu chepamusoro, bhakiti zino rezino rinokanganiswa zvakasimba nekuda kwekukurumidza kukurumidza. Kana simba regoho remazino ebhakiti rakaderera, deformation yepurasitiki ichaitika pamucheto.Nekuwedzera kwekuchera kudzika, kushushikana kwemazino emubhakiti kuchachinja.Apo mazino emubhaketi anocheka zvinhu, zino rebhaketi uye zvinhu zvinoitika kufamba kwehama, inogadzira iyo yakakura kwazvo yakanaka extrusion pressure pamusoro, nokudaro inoburitsa simba guru rekukweshana pakati pemugomo zino rinoshanda kumeso uye zvinhu.Kana zvinhu zviri dombo rakaomarara, kongiri, nezvimwewo, kukwesha kuchava kukuru.Chigumisiro chekudzokorora. chiito chemuitiro uyu chinobudisa madhigirii akasiyana-siyana ekupfeka kwepamusoro pamusoro pemugomo zino rinoshanda chiso, uye rinogadzira muforo nekudzika kukuru.Bucket zino kuumbwa zvakanaka kunokanganisa hurefu hwehupenyu hwebasa remazino emugomo, sarudza mazino emugomo hongu kuchenjerera daddus kutengesa. mazino emugomo Ndakashandisawo mazino ake emugomo, mhedzisiro yacho yakanaka!Kutsikirira kwakanaka pamberi pechiso chekushanda kuri pachena kunodarika kuseri kunoshanda kumeso, uye kumberi kwekushanda kwakashata. Inogona kutongwa kuti iyo yakanaka kudzvinyirirwa uye friction simba ndiyo huru yekunze mechanical zvinhu zvekukundikana kwemazino ebhakiti, iyo inoita basa guru mukukundikana.
Kuongororwa kwemaitiro: tora sampuli mbiri kubva kumberi uye kumashure zviso zvinoshanda zvakateerana, uye uzvikuya zvakadzika kuti uome bvunzo.Inowanikwa kuti kuomarara kwemuenzaniso wakasiyana kwakasiyana kwazvo, uye mutongo wekutanga ndewekuti zvinhu hazvina yunifomu. samples dzaive pasi, dzakakwenenzverwa uye dzakasvibiswa, uye zvakaonekwa kuti pane miganhu iri pachena pamuenzaniso wega wega, asi miganhu yaive yakasiyana.Kubva pakuona macro, chikamu chakatenderedza chine grey uye chikamu chepakati chakasviba, zvichiratidza kuti chidimbu chinogona kunge chakaiswa mukati. Pamusoro, chikamu chakapoteredzwa chinofanirawo kuva chivharo chakavharidzirwa.Kuedza kwekuoma kumativi ose emuganhu kwakaitwa pa hrs-150 digital display rockwell hardness tester uye mhv-2000 digital display microhardness tester, uye kusiyana kukuru kwakawanikwa. Chikamu chakapoteredzwa chivharo chekuisa uye chikamu chakakomberedza chiri matrix.Kuumbwa kwezviviri zvakafanana. Iyo huru alloy kuumbwa (chikamu chezhinji, %) ndicho 0.38c, 0.91cr, 0.83mn uye 0.92si.The mechanical properties yesimbi zvinhu zvinoenderana nekuumbwa kwavo uye kupisa kwekupisa maitiro.Kufanana kwakafanana uye kusiyana kwekuoma kunoratidza kuti bhakiti mazino akaiswa mukushandiswa pasina kupisa kupisa mushure mekukanda.Kutevera kwetishu kucherechedzwa kunosimbisa izvi.
Ongororo yesangano yemetallographic yekutarisa yakaratidza kuti iyo substrate inonyanya dema yakanaka lamellar chimiro, seti chidimbu chetishu chine zvikamu zviviri, fritter chena block uye dema, uye chena block kure nechikamu chechikamu sangano zvakanyanya (uye kumwezve microhardness bvunzo inoratidza kuti sangano rezvigamba zvichena ferrite, dema fine lamellar chimiro chetroostite kana troostite uye pearlite hybrid sangano.Kuumbwa kweiyo yakawanda ferrite mukuisa kwakafanana neiyo yeimwe nhanho yekuchinja nzvimbo munzvimbo inopisa inokanganisa welding.Pasi pechiito che simbi yemvura inopisa panguva yekukanda, nharaunda iyi iri mu austenite uye ferrite maviri-phase zone, uko ferrite yakakura zvakakwana uye microstructure yayo inochengeterwa kusvika kukushisa kwekamuri. chikamu chepakati chekuisa block tembiricha yakaderera, hapana ferrite yakakura inoumbwa
Muedzo wekupfeka pa mld-10 kupfeka bvunzo muchina unoratidza kuti kupfeka kuramba kwematrix uye kupinza kuri nani pane kudzima simbi makumi mana neshanu pasi pemamiriro ediki diki yekupfeka bvunzo. Zvichakadaro, kupfeka kuramba kwematrix uye kuiswa kwakasiyana, uye matrix anonyanya kusakara kupfuura kuiswa (ona tafura 2).Kuumbwa kumativi ose maviri ematrix uye kuiswa kuri pedyo, saka zvinogona kuonekwa kuti kuisa mubhaketi mazino kunyanya ACTS sechiller.In iyo nzira yekukanda, iyo matrix yezviyo inonatswa kuti ivandudze simba rayo uye kupfeka kusagadzikana.Nekuda kwesimba rekukanda kupisa, chimiro chekuisa chakafanana neiyo welding kupisa kunokanganisa zone.Kana yakakodzera kupisa kurapwa kunoitwa mushure kukanda kuvandudza chimiro che matrix uye kuisa, kupfeka kuramba uye hupenyu hwebasa remazino ebhakiti zvichave pachena kuvandudzwa.
Nguva yekutumira: Kubvumbi-15-2019