Phoqelela ukuhlaziya izinyo lebhakede elisebenza ubuso kanye nokuthintana kwento embiwe, kwinqubo yokumba ephelele ezigabeni zokusebenza ezihlukene zezimo zayo ezihlukene zokucindezeleka.Lapho ithiphu lezinyo lithinta kuqala indawo ebonakalayo, ithiphu lezinyo lebhakede lithinteka kakhulu ngenxa yesivinini salo. Uma amandla okukhiqiza amazinyo ebhakede ephansi, ukuguqulwa kwepulasitiki kuzokwenzeka ekugcineni.Ngokwenyuka kokujula kokumba, ukucindezeleka kwamazinyo ebhakede kuzoshintsha.Lapho izinto zokusika izinyo lebhakede, 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.Ukwakheka kwezinyo lebhakede kuhle kuthinta ubude bempilo yesevisi yamazinyo ebhakede, khetha amazinyo ebhakede Yebo kakhudlwana u-daddus uthengisa amazinyo ebhakede Ngasebenzisa namazinyo akhe ebhakede, umphumela muhle!Ingcindezi enhle ebusweni obusebenzayo bangaphambili ngokusobala inkulu kunobuso obusebenzayo obungemuva, futhi ubuso obusebenzayo bangaphambili bugugile kabi. Kungahlulelwa ukuthi ukucindezela okuhle namandla okuphikisana yizici eziyinhloko zangaphandle zemishini yokuhluleka kwamazinyo ebhakede, adlala indima enkulu enqubweni yokuhluleka.
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 ecacile kusampula ngayinye, kodwa imingcele yayihlukile. ucezu cishe kuwukulingisa okuhlanganisiwe. Ngaphezulu, ingxenye evalekile kufanele futhi ibe ibhulokhi ehlanganisiwe.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 kokushisa ngemva kokuphonswa.Okwalandela ukubhekwa kwezicubu kuqinisekisa lokhu.
Ukuhlaziywa kwenhlangano kokubhekwa kwe-metallographic kwabonisa ukuthi i-substrate ngokuyinhloko iyisakhiwo esimnyama esihle se-lamellar, 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 se-lamellar esimnyama esicolekile 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 ephakathi yokushisa kwe-block yokufaka iphansi, akukho ferrite enkulu eyakhiwe
Ukuhlolwa kokugqoka emshinini wokuhlola wokugqoka we-mld-10 kubonisa ukuthi ukumelana nokugqokwa kwe-matrix nokufaka kungcono kunokwensimbi ecishiwe engu-45 ngaphansi kwesimo sokuhlolwa komthelela omncane wokugqoka.Ngaso leso sikhathi, ukumelana nokugqoka kwe-matrix nokufakwa kuhlukile, futhi i-matrix imelana kakhulu nokuguga kunokufaka (bheka ithebula lesi-2).Ukwakheka kuzo zombili izinhlangothi ze-matrix kanye nokokufaka kuseduze, ngakho kungabonakala ukuthi okufakwayo emazinyweni ebhakede ngokuyinhloko KUSEBENZA njengokupholisa. inqubo yokukhipha, okusanhlamvu kwe-matrix kucwengisiswe ukuze kuthuthukiswe amandla ayo nokumelana nokugqoka.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