Simba rekuongorora bhaketi zino rinoshanda chiso uye kucherwa kwechinhu kusangana, 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 rezvibereko zvemazino ebhakiti rakaderera, deformation yepurasitiki ichaitika pamucheto.Nekuwedzera kwekuchera kudzika, kushungurudzika kwemazino emubhakiti kuchachinja.Apo iyo bucket zino rekucheka zvinhu, zino rebhaketi uye zvinhu zvinoitika hama kufamba, inobudisa iyo yakakura kwazvo yakanaka extrusion pressure pamusoro, nokudaro inobudisa simba guru rekukwevera pakati pezino remubhaketi rinoshanda uye zvinhu. Chiito chechiitiko ichi chinoburitsa madhigirii akasiyana ekupfeka kwepasi pachiso chebucket zino rinoshanda, uyezve rinogadzira muforo nekudzika kukuru.Bucket zino rinoumbwa zvakanaka rinokanganisakureba kwehupenyu hwebasa remazino emugomo, sarudza mazino emugomo chokwadi kungwarira baba vanotengesa mazino emugomo ndakashandisawo mazino ake emugomo, mhedzisiro yacho yakanaka!Dzinyiso yakanaka pamberi pechiso inoshanda zviri pachena kuti yakakura kupfuura iyo yekuseri inoshanda kumeso. , uye chiso chekushanda chepamberi chakasakara zvakashata.Inogona kutongwa kuti iyo yakanaka kudzvinyirirwa uye friction simba ndiyo huru yekunze mechanical zvinhu zvekukundikana kwemazino ebhakiti, iyo inobata basa guru mukukundikana.
Kuongororwa kwemaitiro: tora masampuli maviri kubva kumberi uye kumashure anoshanda zviso zvakateerana, uye uzvikuya sandara kuti uome bvunzo.Inowanikwa kuti kuomarara kwemuenzaniso mumwe 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 maviri 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 chakatenderedza matrix.Kuumbwa kwezviviri izvi zvakafanana.Iyo huru alloy kuumbwa (chikamu chezhinji, %) ndicho 0.38c, 0.91cr, 0.83mn uye 0.92si.The mechanical properties yesimbi zvinhu zvinoenderana nekugadzirwa kwavo uye kupisa kwekupisa maitiro.Kufanana kwakafanana uye kusiyana kwekuoma kunoratidza kuti bhakiti mazino akaiswa mukushandiswa pasina kupisa kupisa mushure mekukanda.Kutevera kwenyama kucherechedzwa kunosimbisa izvi.
Ongororo yesangano yemetallographic yekutarisa yakaratidza kuti iyo substrate inonyanya dema yakanaka lamellar chimiro, set chidimbu chetishu chine zvikamu zviviri, fritter chena block uye dema, uye chena bhuroka kure nechikamu chechikamu sangano zvakanyanya (uye imwezve microhardness bvunzo inoratidza kuti sangano rezvigamba zvichena ferrite, black fine lamellar structure ye troostite kana troostite uye pearlite hybrid sangano.Kuumbwa kweferrite yakawanda mukuisa kwakafanana neiyo yeimwe chikamu chekushandura nzvimbo munzvimbo inopisa inopisa ye welding.Pasi pechiito che simbi yemvura inopisa panguva yekukanda, nzvimbo iyi iri mu austenite uye ferrite maviri-phase zone, uko ferrite yakanyatsokura uye microstructure yayo inochengetwa kusvika kune imwe tembiricha. chikamu chepakati chekuisa block tembiricha yakaderera, hapana ferrite yakakura inoumbwa
Iyo yekupfeka bvunzo pamld-10 yekupfeka bvunzo muchina inoratidza kuti kupfeka kuramba kwematrix uye kupinza kuri nani pane kudzima simbi makumi mana neshanu pasi pemamiriro eiyo diki kukanganisa kupfeka bvunzo. Zvichakadaro, kupfeka kuramba kwematrix uye kuiswa kwakasiyana, uye matrix anonyanya kusakara kupfuura kuiswa (ona tafura 2).Kuumbwa kumativi ose emateriki uye kuiswa kuri pedyo, saka zvinogona kuonekwa kuti kuiswa mubhaketi mazino kunyanya ACTS sechiller.In iyo nzira yekukanda, iyo matrix zviyo 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