Umbhobho wentsimbi yekhabhoni engenamthungo luhlobo lombhobho olusetyenziswa kakhulu kwintsimi yoshishino. Inkqubo yokuvelisa ayibandakanyi nayiphi na i-welding, ngoko ke igama elithi "i-seamless". Olu hlobo lombhobho ludla ngokwenziwa ngentsimbi ye-carbon structural high-quality okanye i-alloy steel ngokutshisa okanye ukubanda. Umbhobho we-carbon steel ongenamthungo usetyenziswa ngokubanzi kwiinkalo ezininzi ezifana ne-oyile, igesi yendalo, ishishini lemichiza, ibhoyila, ukuhlola i-geological kunye nokuveliswa koomatshini ngenxa yesakhiwo esifanayo kunye namandla, kunye nokumelana noxinzelelo oluhle kunye nokumelana nobushushu. Umzekelo, imibhobho yentsimbi engenamthungo yeebhoyila ezinoxinzelelo oluphantsi noluphakathi isetyenziswa ikakhulu ukwenza imibhobho yomphunga eshushu kakhulu, imibhobho yamanzi abilayo kunye nemibhobho yomphunga eshushu kakhulu kwizibiyeli zelocomotive yeebhoyila zoxinzelelo oluphantsi noluphakathi. Kwaye imibhobho yentsimbi engenamthungo yeebhoyila zoxinzelelo oluphezulu isetyenziselwa ukwenza imibhobho yendawo yokufudumeza yeebhoyila zamanzi ezinoxinzelelo oluphezulu nangaphezulu. Ukongeza, imibhobho yentsimbi yekhabhoni engenamthungo ingasetyenziselwa ukwenza iinxalenye zesakhiwo kunye namalungu omatshini, anje ngeeshafu zokuqhuba iimoto, iifreyimu zebhayisekile, kunye nesikafula sentsimbi ekwakhiweni. Ngenxa yobungcali benkqubo yayo yokuvelisa, imibhobho yentsimbi yekhabhoni engenamthungo inokumelana noxinzelelo oluphezulu ngexesha lokusetyenziswa kwaye ayinakukwazi ukuvuza, ngoko ke ibaluleke kakhulu ekuhambiseni ulwelo.
Ulwahlulo lwemibhobho yentsimbi ye-carbon engenamthungo isekelwe ikakhulu kwizinto zokuvelisa kunye nokusetyenziswa. Ngokwendlela yokuvelisa, imibhobho ye-carbon steel engenamthungo ingahlulwa ibe ngamacandelo amabini: i-hot-rolled and cold-rolled (drawn). Imibhobho yentsimbi engenamthungo eshushu eqengqelekayo ibandakanya imibhobho yentsimbi ngokubanzi, imibhobho yentsimbi yebhoyila yoxinzelelo oluphantsi noluphakathi, imibhobho yentsimbi yebhoyila enoxinzelelo oluphezulu, imibhobho yentsimbi exutywe nentsimbi, imibhobho yentsimbi etyiwayo, imibhobho yokuqhekeka yepetroliyamu kunye nezinye iintlobo, ngelixa ibandayo (itsalwa) imibhobho yentsimbi engenamthungo ibandakanya imibhobho yentsimbi enekhabhoni ebhityileyo, imibhobho yentsimbi enodonga olubhityileyo, imibhobho yentsimbi enodonga olubhityileyo, imibhobho yentsimbi ebhityileyo kunye nemibhobho yentsimbi eyahluka-hlukeneyo. Iimpawu zemibhobho yentsimbi engenamthungo zidla ngokubonakaliswa ngeemilimitha zobubanzi obungaphandle kunye nobukhulu bodonga. Izinto eziphathekayo zibandakanya isinyithi esiqhelekileyo kunye nekhwalithi ephezulu ye-carbon structural steel (efana ne-Q215-A ukuya kwi-Q275-A kunye ne-10 ukuya kwi-50 yentsimbi), intsimbi ephantsi ye-alloy (efana ne-09MnV, 16Mn, njl.), intsimbi ye-alloy kunye nentsimbi enganyangekiyo ye-asidi. . Ukukhethwa kwezi zinto kuhambelana namandla, ukunyanzeliswa koxinzelelo kunye nokuxhatshazwa kwe-corrosion yombhobho, ngoko kuya kubakho iimfuno zezinto ezahlukeneyo kwizicelo ezahlukeneyo zoshishino. Ngokomzekelo, iintsimbi zekhabhoni eziphantsi ezifana neNombolo ye-10 kunye neNombolo ye-20 yentsimbi zisetyenziselwa ikakhulu kwimibhobho yokuhambisa ulwelo, ngelixa iintsimbi zekhabhoni eziphakathi ezifana ne-45 kunye ne-40Cr zisetyenziselwa ukuvelisa amacandelo omatshini, njengeendawo ezithwala uxinzelelo kwiimoto kunye neetrekta. . Ukongeza, imibhobho yentsimbi engenamthungo kufuneka ilawule ngokungqongqo umgangatho ngexesha lenkqubo yokuvelisa, kubandakanywa nokuhlolwa kokwakheka kweekhemikhali, ukuvavanywa kwepropathi yomatshini, uvavanyo loxinzelelo lwamanzi, njl.njl., Ukuqinisekisa ukuthembeka kunye nokhuseleko lwabo phantsi kweemeko ezahlukeneyo zokusebenza. Inkqubo yokuvelisa imibhobho yentsimbi yekhabhoni engenamthungo nayo ibaluleke kakhulu. Ibandakanya amanyathelo amaninzi afana ne-perforation, i-hot rolling, i-cold rolling okanye umzobo obandayo wee-ingots okanye iityhubhu eziqinileyo, kwaye isinyathelo ngasinye sifuna ukulawula okuchanekileyo ukuqinisekisa umgangatho wemveliso yokugqibela. Ngokomzekelo, ukuveliswa kwemibhobho yensimbi engenamthungo eshushu ifuna ukufudumeza i-tube billet ukuya malunga ne-1200 degrees Celsius, emva koko igqobhoze nge-perforator, kwaye yenza umbhobho wentsimbi ngokusebenzisa i-roller oblique rolling, i-rolling oblique eqhubekayo okanye i-extrusion. Imibhobho yentsimbi engenamthungo epholileyo ifuna ukuba i-tube billet icocwe kwaye ithanjiswe phambi kokuba iqengqiwe (itsalwa) ebandayo ukuze ifikelele kubungakanani obufunekayo kunye nokumila. Ezi nkqubo zokuvelisa eziyinkimbinkimbi aziqinisekisi kuphela umgangatho wangaphakathi wombhobho wensimbi ongenamthungo, kodwa kwakhona unika ukuchaneka okungcono kwe-dimensional kunye nokugqitywa kwendawo. Kwizicelo ezisebenzayo, iibhobho ze-carbon steel ezingenamthungo zisetyenziswa ngokubanzi kumashishini amaninzi afana neoli, igesi, imboni yeekhemikhali, umbane, ukushisa, ukugcinwa kwamanzi, ukwakhiwa kweenqanawa, njl. ngenxa yokusebenza kakuhle kunye nokuthembeka. Ziyinxalenye ebalulekileyo yoshishino lwanamhlanje. Kungakhathaliseki ukuba kubushushu obuphezulu kunye noxinzelelo oluphezulu okanye kwimithombo yeendaba eyingozi, imibhobho yentsimbi yekhabhoni engenamthungo ingabonisa ukusebenza kwayo okugqwesileyo kwaye inike iziqinisekiso eziqinileyo zokusebenza ngokukhuselekileyo kweenkqubo ezahlukeneyo zoshishino.
Ububanzi bemibhobho yentsimbi ye-carbon engenamthungo inokusuka kwi-DN15 ukuya kwi-DN2000mm, ubukhulu bodonga buhluka ukusuka kwi-2.5mm ukuya kwi-30mm, kwaye ubude buhlala buphakathi kwe-3 kunye ne-12m. Ezi parameters ze-dimensional zivumela imibhobho ye-carbon steel engenamthungo ukuba isebenze ngokuzinzileyo phantsi koxinzelelo oluphezulu kunye neendawo zokushisa eziphezulu, ngelixa ziqinisekisa ukuthembeka kwazo ngexesha lokuthutha kunye nokufakwa. Ngokomgangatho we-GB / T 17395-2008, ubukhulu, imilo, ubunzima kunye nokuphambuka okuvumelekileyo kwemibhobho yensimbi engenamthungo ilawulwa ngokungqongqo ukuqinisekisa umgangatho wemveliso kunye nokhuseleko. Xa ukhetha imibhobho ye-carbon steel engenamthungo, kubalulekile ukuqwalasela i-diameter yabo yangaphakathi, ububanzi bangaphandle, ubukhulu kunye nobude, zizinto eziphambili ekunqumeni ukusebenza kombhobho. Ngokomzekelo, i-diameter yangaphakathi inquma ubungakanani besithuba sokudlula ulwelo, ngelixa i-diameter yangaphandle kunye nobukhulu buhambelana ngokusondeleyo nomthamo woxinzelelo lombhobho. Ubude buchaphazela indlela yokudibanisa yombhobho kunye nobunzima bofakelo.
Ixesha lokuposa: Nov-11-2024