Iityhubhu zebhoyila ezinoxinzelelo oluphantsi noluphakathi zenziwe ngee-ingots okanye iibhilithi eziqinileyo ezigqobhozwe ukwenza i-burr tube, emva koko ishushu iqengqeleke, iqengqeleke ebandayo okanye icocwe ngokubanda.Umbhobho wentsimbi ongenamthungo unendawo ebalulekileyo kwishishini lombhobho wentsimbi yaseTshayina.Ngokwezibalo ezingaphelelanga, amashishini emveliso umbhobho China ekhoyo ingenamthungo malunga 240 ngaphezu, unit umbhobho intsimbi engenamthungo malunga 250 iiseti, umthamo imveliso yonyaka malunga neetoni ezingaphezu kwezigidi 4.5.Ukusuka kwinqanaba le-caliber, <φ76, i-akhawunti ye-35%, <φ159-650, i-25%.Ngokubhekiselele kwiindidi, i-1.9 yezigidi zeetoni zeetyhubhu ezijoliswe ngokubanzi, ezibalelwa kwi-54%;I-760,000 yeetoni ze-petroleum tubes, ezibalelwa kwi-5.7%;I-150,000 yeetoni zeentsika ze-hydraulic, iibhubhu ezichanekileyo, ezibalelwa kwi-4.3%;iibhubhu ezingenasici, iibhubhu ezithwalayo, iibhubhu zeemoto zizonke zeetoni ezingama-50,000, zibalelwa kwi-1.4%.
Iipropati zebhoyila zoxinzelelo oluphantsi noluphakathi: amandla okuqina σb (MPa): ≥ 410 (42) amandla esivuno σs (MPa): ≥ 245 (25) ubude δ5 (%): ≥ 25 ukushwabana kwecandelo ψ (%): ≥ 5 , ubulukhuni: hayi unyango lobushushu, ≤ 156HB, ubungakanani isampuli: ubungakanani isampuli 25mm ingcaciso yobushushu ubushushu kunye nombutho metallographic: iinkcukacha unyango ubushushu: eqhelekileyo, 910 ℃, Ukupholisa umoya.Umbutho we-Metallographic: ferrite + pearlite.
Umgangatho ophakathi kunye nomgangatho ophantsi wokwenza ityhubhu yebhoyila: I-GB3087-1999 ityhubhu yentsimbi engenamthungo kwibhoyila yoxinzelelo oluphantsi noluphakathi.
Iityhubhu zebhoyila ezinoxinzelelo oluphakathi noluphantsi zishushu ziqengqeleka kwaye zitsalwa ngokubanda (ziqengqelekisiwe) iityhubhu ezingenamthungo zomgangatho ophezulu wekhabhoni eyintsimbi esetyenziselwa ukwenza iityhubhu zomphunga oshushu kakhulu, iityhubhu zamanzi eziqengqelekayo kunye netyhubhu yomphunga eshushu kakhulu kwizibiyitha zikaloliwe, iityhubhu ezinkulu zomsi, iityhubhu ezincinci zomsi kunye nearch. iityhubhu zezitena zezakhiwo ezahlukeneyo zeebhoyila zoxinzelelo oluphantsi naphakathi.Ikakhulu isetyenziselwa iibhoyila zoshishino kunye neebhoyila eziphilayo ukuthutha imibhobho yamanzi yoxinzelelo oluphantsi kunye noxinzelelo.Izinto ezimeleyo ziyi-10 kunye ne-20 gauge steel.
