Emthethweni wesimanje wokukhiqiza we-ductile iron manhole cover, singakha i-ductile iron ngensimbi ecijile kanye nensimbi ebunjiwe, esetshenziswa kakhulu embonini yokukhiqiza imishini namuhla.Eqinisweni, isimiso sensimbi ye-ductile ukuthola i-graphite enesimo esifanayo nebhola ngenqubo ye-spheroidization, ethuthukisa ngokuphumelelayo ukusebenza kwensimbi ekhonjiwe, ikakhulukazi i-plasticity yayo kanye nokuqina, okuholela ekubeni izinga eliphezulu kune-carbon steel.Kodwa-ke, ukuze kuncishiswe izindleko, izembozo zomgodi we-iron ductile ngokuvamile zenziwe ngomgunyathi kusetshenziswa insimbi ekhonjiwe kanye nefojiwe.
I-Ductile iron iyimpahla ephukayo.Okokuqala, i-cast iron isho okuqukethwe kwekhabhoni okukhulu kuno-2.1% (okunekhabhoni engu-3.50-3.90% kanye nesakhiwo se-metallographic se-ferrite+pearlite).Uma okuqukethwe kwekhabhoni kuphezulu, ubulukhuni bayo nakanjani buzoba phezulu.Okwesibili, i-spheroidizing iron ductile kusho ukuthi ubukhulu bezinhlayiya zensimbi buyancipha, okuzokwenza ngcono amandla nobulukhuni bezinto.Ngakho-ke, ngokujwayelekile, ubulukhuni be-iron ductile buphezulu kakhulu (ngokuqinisekile buphakeme kunobensimbi evamile).
Okokuqala, izimoto ezisindayo zivame ukusetshenziswa emgwaqeni, ngakho-ke kuvame ukukhethwa izembozo zemigodi yensimbi ene-ductile, enamandla okuthwala amathani angaba ngu-40;Ezinye izimbobo zomgodi ezihlanganisiwe zingafinyelela umthamo wokuthwala ongamathani angama-25, okushibhile kune-ayoni edonsa amanzi.Kodwa-ke, izembozo zomgodi we-iron ductile ziphephile uma kuqhathaniswa.
Okwesibili, uma kuqhathaniswa nezimbobo zembobo eziyinhlanganisela, izembozo zemigodi yensimbi edonsa amanzi maningi amathuba okuthi ziqondiswe amasela.Izembozo zomgodi wensimbi azigcini nje ngokuba namandla okuthwala kahle, kodwa futhi zigxila ekwakhiweni kwayo yonke imininingwane yembobo yensimbi ene-ductile, ikakhulukazi mayelana nokusebenza okulwa nokweba, okuphoqa ngempela amasela kuze kufike lapho bengenandlela yokuqala. futhi akekho ongeba.Abanye abantu bangase bakhathazeke ngokuthi izimbobo zomgodi wensimbi ezisansimbi zingase zenze umsindo omkhulu lapho ushayela phezulu, okungadingekile ngandlela-thile ngoba sesilucubungulile lolu daba ekwakhiweni kwethu.Isembozo somgodi ngamunye siye sathola ukwelashwa kokunciphisa umsindo ngaphambi kokuphuma embonini, okuhlukanise ngokuphelele inkinga yokungcoliswa komsindo yezimbobo zensimbi edonsa amanzi.
Okokugcina, amandla okuthwala umthwalo wezimbobo zembobo eziyinhlanganisela mancane kakhulu kunawesembozo semigodi yensimbi edonsa amanzi.Ezindaweni ezinjengamabhande aluhlaza kanye nemigwaqo engaseceleni engadingi ukucindezela okukhulu, izindleko zokusebenzisa izembozo zemigodi ehlanganisiwe ziphansi kakhulu kunezokusebenzisa izembozo zemigodi yensimbi ene-ductile.
Isikhathi sokuthumela: Aug-10-2023
