Phoqelela ukuhlaziya izinyo lebhakede elisebenzayo kanye nokuthintana kwento embiwe, kwinqubo yokumba ephelele ezigabeni zokusebenza ezihlukene zezimo zayo zokucindezeleka ezihlukene.Lapho ithiphu lezinyo lithinta kuqala indawo ebonakalayo, ithiphu lezinyo lebhakede lithinteka kakhulu ngenxa yesivinini salo. Uma amandla okukhiqiza amazinyo ebhakede ephansi, ukuguqulwa kwepulasitiki kuzokwenzeka esihlokweni.Ngokwenyuka kokujula kokumba, ukucindezeleka kwamazinyo ebhakede kuzoshintsha.Lapho izinyo lebhakede lokusika impahla, izinyo lebhakede kanye nempahla kwenzeka ukunyakaza okuhlobene, ikhiqiza ingcindezi enkulu ye-positive extrusion ebusweni, ngaleyo ndlela ikhiqize amandla amakhulu okungqubuzana phakathi kwezinyo lebhakede elisebenzayo kanye nempahla.Uma impahla iyidwala eliqinile, ukhonkolo, njll., ukungqubuzana kuzoba kukhulu kakhulu.Umphumela wokuphindaphinda isenzo sale nqubo sikhiqiza amazinga ahlukene okuguga ebusweni bezinyo lebhakede elisebenzayo, bese likhiqiza umsele ngokujula okukhulu.ubude bempilo yenkonzo yamazinyo ebhakede, khetha amazinyo ebhakede vele ucophelele kakhulu ubaba uthengisa amazinyo ebhakede Ngasebenzisa namazinyo akhe ebhakede, umphumela muhle!Ingcindezi eyakhayo ebusweni obusebenzayo bangaphambili ngokusobala inkulu kunaleyo esemuva lobuso obusebenzayo. , futhi ubuso obusebenzayo bangaphambili buguge kabi.Kungahlulelwa ukuthi ukucindezela okuhle namandla okungqubuzana yizici eziyinhloko zangaphandle zemishini yokuhluleka kwamazinyo ebhakede, adlala indima enkulu ekuhlulekeni kwenqubo.
Ukuhlaziywa kwenqubo: thatha amasampula amabili ebusweni obusebenzayo ngaphambili nangemuva ngokulandelana, futhi uwagaye aphansi ukuze ahlolwe ubulukhuni.Kutholakala ukuthi ubulukhuni besampula efanayo buhluke kakhulu, futhi ukwahlulela kokuqala ukuthi impahla ayifani. amasampula agaywe, aphucuziwe futhi agqwalile, futhi kwatholakala ukuthi kwakukhona imingcele esobala kusampula ngayinye, kodwa imingcele yayihlukile.Ngokombono omkhulu, ingxenye ezungezile inompunga okhanyayo futhi ingxenye ephakathi imnyama, okubonisa ukuthi ucezu cishe kuwukulingisa okuhlanganisiwe.Ngaphezulu, ingxenye evalekile kufanele futhi ibe ibhulokhi efakiwe.Ukuhlolwa kokuqina ezinhlangothini zombili zomngcele kwenziwe nge-hrs-150 digital display rockwell hardness tester kanye ne-mhv-2000 digital display microhardness tester, futhi umehluko omkhulu watholakala. Ingxenye evalekile iyibhulokhi yokufaka futhi ingxenye ezungezile iyi-matrix.Ukwakheka kwakho kokubili kuyefana.Ukwakheka kwe-alloy eyinhloko (ingxenye enkulu, %) ngu-0.38c, 0.91cr, 0.83mn kanye no-0.92si.Izakhiwo zemishini yezinto zensimbi zincike ekubunjweni kwazo kanye nenqubo yokwelashwa kokushisa.Ukwakheka okufanayo kanye nomehluko wokuqina kubonisa ukuthi ibhakede amazinyo asetshenziswa ngaphandle kokwelashwa ngokushisa ngemva kokuphonswa.Okwalandela ukubhekwa kwezicubu kuqinisekisa lokhu.
Ukuhlaziywa kwenhlangano kokubhekwa kwe-metallographic kwabonisa ukuthi i-substrate ngokuyinhloko i-lamellar enhle emnyama isakhiwo, isethi yesicubu sinezingxenye ezimbili, i-fritter white block kanye ne-black, kanye ne-white block kude nenhlangano yendawo yesiphambano ngaphezulu (futhi ukuhlolwa kokuqina okuncane kufakazela ukuthi inhlangano yamapheshana amhlophe e-ferrite, isakhiwo esimnyama esihle se-lamellar se-troostite noma i-troostite kanye nenhlangano eyingxube ye-pearlite.Ukwakheka kwe-ferrite eningi ekufakweni kuyafana nalokho kwezinye izindawo zokushintsha kwesigaba endaweni ethintekile ekushiseleni.Ngaphansi kwesenzo ukushisa kwe-metal liquid ngesikhathi sokuphonsa, lesi sifunda sisendaweni ye-austenite ne-ferrite yezigaba ezimbili, lapho i-ferrite ikhule ngokugcwele futhi i-microstructure yayo igcinwa ekamelweni lokushisa. ingxenye emaphakathi yokushisa kwe-block block iphansi, akukho ferrite enkulu eyakhiwe
Ukuhlolwa kokugqoka emshinini wokuhlola wokugqoka we-mld-10 kubonisa ukuthi ukumelana nokugqoka kwe-matrix nokufaka kungcono kunokwensimbi ecishiwe engu-45 ngaphansi kwesimo sokuhlolwa komthelela omncane wokugqoka. futhi i-matrix imelana kakhulu nokuguga kunokufaka (bheka ithebula lesi-2).Ukwakheka ezinhlangothini zombili ze-matrix kanye nokokufaka kuseduze, ngakho kungabonakala ukuthi okufakwayo emazinyweni ebhakede ngokuyinhloko KUSEBENZA njengokupholisa. inqubo yokukhipha, okusanhlamvu kwe-matrix kucwengisiswe ukuze kuthuthukiswe amandla ayo kanye nokugqoka ukumelana.Ngenxa yethonya lokushisa okukhiphayo, isakhiwo sokufaka sifana nesokushisa kwe-welding indawo ethintekile.Uma ukwelashwa okufanele kokushisa kwenziwa ngemva ukuphonsa ukuze kuthuthukiswe ukwakheka kwe-matrix nokufaka, ukumelana nokugqoka kanye nempilo yesevisi yamazinyo ebhakede kuzothuthukiswa ngokusobala.
Isikhathi sokuthumela: Apr-15-2019